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Author SHA1 Message Date
93db3c61c0 * configure.in NEWS libvirt.spec* doc/* po/*: making libvirt-0.4.4
release
* src/xm_internal.c: fix xm driver serialization escapes
* tests/xmconfigtest.c tests/xmconfigdata/test-escape-paths.cfg
  tests/xmconfigdata/test-escape-paths.xml: add test for previous
  problem
Daniel
2008-06-25 08:59:37 +00:00
3f6d44e9c9 * po/*: updated a couple of localizations and regenerated the
files
Daniel
2008-06-25 08:49:54 +00:00
47605e1dfa Added helpers for dealing with enumerations 2008-06-24 15:00:15 +00:00
313f1a7c0d Fix const-ness of virStorageBackendRunProgRegex() 2008-06-24 14:30:25 +00:00
1ec7cccbd3 fix a couple of List functions for max = 0 issues
* src/xen_internal.c src/xend_internal.c: fix a couple of issues
  for List functions where max given is 0
Daniel
2008-06-19 14:39:49 +00:00
e09fab39a8 virsh fails to read files larger than BUFSIZ bytes
* src/util.c (fread_file_lim): Use VIR_REALLOC_N, not VIR_ALLOC_N.
Bug introduced in 895d0fdf5b.
* tests/Makefile.am (test_scripts): Add read-bufsiz.
* tests/read-bufsiz: New test for the above.
2008-06-19 14:30:52 +00:00
2dc11b36a1 Update the changelog to go along with my commits for the last week. 2008-06-19 14:22:54 +00:00
0aa6eedddd For 0.4.3, danpb's new memory management scheme went into libvirt. This is
fine, except that is subtly alters the semantics of malloc(), calloc(), and
realloc().  In particular, if you say:

foo = malloc(0);

glibc will happily return a non-NULL pointer to you.  However, with the new
memory management stuff, if you say:

foo = VIR_ALLOC(0);

you will actually get a NULL pointer back.  Personally, I think this is a
dangerous deviation from malloc() semantics that everyone is used to, and is
indeed causing problems with the remote driver.  The short of it is that the
remote driver allocates memory on behalf of the remote side using VIR_ALLOC_N,
and this call is returning NULL so that the NULL checks elsewhere in the code
fire and return failure.

The attached patch fixes this situation by removing the 0 checks from the memory
allocation paths, and just lets them fall through to the normal malloc(),
calloc(), or realloc() routines, restoring old semantics.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
2008-06-19 11:58:49 +00:00
a24b1d9eda When doing the conversion to danpb's new memory API, a small bug was
introduced into the qemudNetworkIfaceConnect() function.  In particular, there
is a call:

    if (VIR_ALLOC_N(vm->tapfds, vm->ntapfds+2) < 0)
        goto no_memory;

However, the tapfds structure is used to track *all* of the tap fds, and is
called once for each network that is being attached to the domain.  VIR_ALLOC_N
maps to calloc().  So the first network would work just fine, but if you had
more than one network, subsequent calls to this function would blow away the
stored fd's that were already there and fill them all in with zeros.  This
causes multiple problems, from the qemu domains not starting properly to
improper cleanup on shutdown.  The attached patch just changes the VIR_ALLOC_N()
to a VIR_REALLOC_N(), and everything is happy again.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
2008-06-19 10:38:36 +00:00
21ea9cb7af remove trailing white space 2008-06-17 15:55:03 +00:00
0de4f35ebc This rather large patch rewrites the virStorageBackendISCSIFindLUNs() function
to only rely on sysfs for finding LUNs, given a session number.  Along the way,
it also fixes the bug where we wouldn't find LUNs for older kernels (with the
block:sda format), and also fixes a race condition where we could try
to find the LUN before udev has finished connecting it.

This patch fixes a few different bugs:
1) We weren't finding LUNs on pre 2.6.24 kernels
2) libvirtd sysfs scanning was racing with udev, so we didn't always see LUNs
3) We weren't showing the 0'th LUN, although that can be a valid LUN

Signed-off-by: Chris Lalancette <clalance@redhat.com>
2008-06-17 12:49:37 +00:00
94e3ba0e87 A small bugfix; we only need to call the iscsiadm sendtarget command when we are
first logging in; we don't need to do it for logout.  Move the sendtarget
command into the Login() function.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
2008-06-17 12:47:10 +00:00
88dd6f6cc2 Older versions of iscsiadm didn't support the "-P 0" flag to the "iscsiadm
--mode session" command.  However, just running "iscsiadm --mode session" seems
to work on all version of iscsiadm commands back to FC-6, so just use that.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
2008-06-17 12:46:38 +00:00
a9e30eec59 In src/util.c, virLog is just a wrapper around fprintf(stderr). Make sure to
put line breaks at the end of lines that use virLog() (noticed during testing).

Signed-off-by: Chris Lalancette <clalance@redhat.com>
2008-06-17 12:45:59 +00:00
a75a612ad5 This patch changes things around so that virStorageBackendRunProgRegex() does
*not* virStorageReportError() if the fork()/exec() process it spawned returned a
!= 0 exit code.  Rather, it returns the exitcode in this case, and it is up to
the higher level to determine whether this is a fatal error or not.  The use
case for this change is in the iSCSI stuff; older versions of iscsiadm tools
would return a failure when getting the session number, despite the command
succeeding.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
2008-06-17 12:45:24 +00:00
a48f26c718 adding autogen.sh to EXTRA_DIST
* Makefile.am: adding autogen.sh to EXTRA_DIST
Daniel
2008-06-13 09:08:44 +00:00
5ba9e91e52 * src/qemu_conf.c: patch from Kaitlin Rupert, dynamic devices
for network should be defined in an 'interface' node not 'net'
Daniel
2008-06-13 07:56:59 +00:00
7db4c905d7 * configure.in NEWS libvirt.spec* doc/* po/*: making libvirt-0.4.3
release
Daniel
2008-06-12 16:10:50 +00:00
841dd882a4 Fix misc compile warnings 2008-06-12 13:48:29 +00:00
db162cb2b8 Fix saving of iptables rules 2008-06-12 13:47:38 +00:00
74fb2b9704 Deal with inactive virtual network in domain creation 2008-06-12 10:19:24 +00:00
4e51a21ccb Adding Kaitlin Rupert in the AUTHORS list
Daniel
2008-06-12 08:56:59 +00:00
5d14e4fcce * src/qemu_driver.c: patch from Kaitlin Rupert, changing vcpu or
memory of an active domain is a NO_SUPPORT not INTERNAL_ERROR
Daniel
2008-06-12 08:55:13 +00:00
d7f62fefed po regeneration
* po/*: update and regenerated
Daniel
2008-06-11 15:22:24 +00:00
357bf10553 Fix RPM build 2008-06-11 11:26:36 +00:00
c0626a02a9 * python/libvir.py python/libvirt-python-api.xml: more python
cleanups by Cole Robinson
Daniel
2008-06-11 07:49:01 +00:00
b0a3d6809a * configure.in: patch from Cole Robinson to reactivate storage
support
Daniel
2008-06-10 15:35:15 +00:00
cb96ae2583 * python/generator.py python/libvir.c python/libvirt-python-api.xml:
Apply patch from Cole Robinson fixing UUIDString for python
Daniel
2008-06-10 15:20:25 +00:00
406d896363 Pass syntax check for XM block devices over to XenD
* src/xm_internal.c: Pass responsibility for checking syntax
	  of XM block devices over the XenD (see also Xen cset 17617).
	  (Hiroyuki Kaguchi).
2008-06-10 14:39:58 +00:00
6bcf25017b virDomainMemoryPeek API
* include/libvirt/libvirt.h.in, src/libvirt.c, src/driver.h,
          src/libvirt_sym.version: New virDomainMemoryPeek API.
        * qemud/remote.c, qemud/remote_protocol.x, src/remote_internal.c:
          Support for remote.
        * src/qemu_driver.c: QEMU driver implementation of API.
        * src/test.c: Test driver (null) implementation of API.
        * docs/hvsupport.html.in: Document API.
        * libvirt.spec.in: New path /var/cache/libvirt for temporary
          storage of memory images.
        * qemud/libvirtd.init.in: Remove any old temp files in
          /var/cache/libvirt on restarts.
        * src/Makefile.am: make install creates /var/cache/libvirt.
        * configure.in: Detect mkdir -p.
2008-06-10 10:43:28 +00:00
0d0c96722c Mon Jun 9 15:42:34 PST 2008 David L. Leskovec <dlesko@linux.vnet.ibm.com>
* src/lxc_driver.c: Make console element is output only.  Always open new
	PTY when starting a container.
	Fix string overrun when storing console name in VM def struct
2008-06-09 22:51:32 +00:00
787e44a1d0 Better error messages in xend driver.
* src/xend_internal.c: Change virXendError function to take
	varargs.  Better error messages throughout.
2008-06-09 12:16:03 +00:00
d789ef5a88 Switch over remaining driver code to use memory alloc apis 2008-06-06 11:09:57 +00:00
d7d21c85e0 Switch daemon over to use internal memory allocation APIs 2008-06-06 10:52:01 +00:00
a73a88a19f virDomainBlockPeek QEMU and remote support
* qemud/remote.c, qemud/remote_protocol.x, src/remote_internal.c:
	  Remote support.
	* qemud/remote_dispatch_localvars.h,
	  qemud/remote_dispatch_proc_switch.h,
	  qemud/remote_dispatch_prototypes.h,
	  qemud/remote_protocol.c,
	  qemud/remote_protocol.h:
	  Generated files for remote support.
	* src/xen_unified.c, src/driver.h, src/libvirt.c: Small fix -
	  pass flags around internally.
	* src/qemu_driver.c: Support for QEMU.
	* src/xend_internal.c: Remove redundant fstat call from Xen.
2008-06-05 21:12:26 +00:00
8354895e68 virDomainBlockPeek call
* configure.in: Document AC_SYS_LARGEFILE.
	* docs/hvsupport.html.in: Document HV support for virDomainBlockPeek.
	* include/libvirt/libvirt.h.in, src/driver.h, src/libvirt.c,
	src/libvirt_sym.version: Add virDomainBlockPeek infrastructure.
	* src/qemu_driver.c, src/test.c: Null versions of this call.
	* src/xen_unified.c, src/xend_internal.c, src/xend_internal.h,
	src/xm_internal.c, src/xm_internal.h: Xen implementation.
	* tests/sexpr2xmldata/sexpr2xml-curmem.xml,
	tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml: XML output
	has been reordered slightly in the Xen driver, but should be
	functionally the same.
2008-06-05 13:17:45 +00:00
0bd57cdbe1 Fix a few issues related to restart of libvirtd with containers running.
Mon May 12 23:32:21 PST 2008 David L. Leskovec <dlesko@linux.vnet.ibm.com>

	* src/lxc_driver.c: Add sanity of tty pid before kill()
	Ignore ECHILD errors during VM cleanup
	Call functions to store tty pid and cleanup tty pid file
	* src/lxc_conf.h: Add function to verify container process exists
	Add facilities to manage storing the tty forward process pid
	* src/lxc_conf.c: Add function to verify container process exists
	Call function to verify container process during config load
	Add facilities to manage storing the tty forward process pid
	Call function to load tty pid during load config
2008-06-05 06:03:00 +00:00
eeb224b812 * src/xm_internal.c: If vcpu cpuset attribute is invalid
then display an error instead of silently ignoring it
	(Hiroyuki Kaguchi).
2008-06-03 08:01:45 +00:00
4a9ebf7da7 General tips for contributing patches
* HACKING: Added section "general tips for contributing patches"
	to this file.
2008-06-02 11:53:23 +00:00
f855e91f11 Only run coverage tests if lcov is installed 2008-05-29 20:43:08 +00:00
d007428ddb Fix make dist 2008-05-29 20:09:56 +00:00
84494d2e0a Fix warning with OOM testing is disabled 2008-05-29 19:41:40 +00:00
aa2bb9c88c Switch to using lcov for code coverage repots 2008-05-29 19:27:04 +00:00
5e124764c1 Fix parted check & disable storage driver if daemon isn't present 2008-05-29 19:23:17 +00:00
895d0fdf5b Convert to use new memory allocation APIs 2008-05-29 19:20:22 +00:00
e8a0db81ef Pass allocation number to callback 2008-05-29 18:47:00 +00:00
46f52f32b2 Convert to use new memory allocation APIs 2008-05-29 18:45:36 +00:00
489da1c4b1 Fix missing check for memory allocation failure 2008-05-29 18:45:07 +00:00
4b23495509 Convert test suites over to new test infrastructure 2008-05-29 15:31:49 +00:00
b0bcffda3b Misc OOM / memory leak fixes 2008-05-29 15:28:28 +00:00
364f53a67a Generic test suite helpers for OOM testing 2008-05-29 15:21:45 +00:00
18da6991e1 Generic OOM testing hooks 2008-05-29 15:13:07 +00:00
a9d4944f8e Don't add trailing blanks in dominfo output 2008-05-29 14:56:12 +00:00
2168e27738 Fix python code generation for storage APIs 2008-05-29 14:53:58 +00:00
2b483bfaf5 Fix make syntax-check caused by trailing blanks 2008-05-29 05:21:53 +00:00
ec8b5b605e Fix virsh dominfo test.
* tests/virshdata/dominfo-fc4.txt: 'virsh dominfo' test
	matches actual output with autostart status.
2008-05-27 13:51:52 +00:00
5c9454aa6e Display autostart status in virsh dominfo command.
* src/virsh.c: Display autostart status in virsh dominfo
	command (Shigeki Sakamoto).
2008-05-27 09:41:25 +00:00
e083fc786c Fix use of header files in disk storage backend.
* src/storage_backend_disk.c: Include internal.h to resolve use
	of header files.
2008-05-27 08:56:56 +00:00
f60dc0bc09 Deprecate the conn, dom and net fields in the _virError structure.
* include/libvirt/libvirt.h.in: Add VIR_DEPRECATED macro.
	* src/internal.h: Internal code is allowed to use deprecated
	features, so override VIR_DEPRECATED here.
	* include/libvirt/virterror.h: Deprecate the conn, dom and net
	fields in the _virError structure.
2008-05-23 08:32:08 +00:00
1d8d4f86b6 Standardize use of header files, making internal.h primary.
* qemud/internal.h, qemud/qemud.h: Rename this file so it
	doesn't conflict with src/internal.h.
	* HACKING: Document how header files should be used.
	* qemud/Makefile.am: Add src/ directory to includes.
	* qemud/event.c, qemud/mdns.c, qemud/qemud.c, qemud/remote.c,
	qemud/remote_protocol.c, qemud/remote_protocol.h,
	qemud/remote_protocol.x, src/buf.c, src/libvirt.c,
	src/nodeinfo.c, src/qemu_conf.c, src/qemu_driver.c,
	src/stats_linux.c, src/storage_backend.c, src/storage_backend_fs.c,
	src/storage_backend_iscsi.c, src/storage_backend_logical.c,
	src/storage_conf.c, src/storage_driver.c, src/util.c,
	src/util.h, src/virsh.c, src/virterror.c, src/xend_internal.c,
	src/xml.c, tests/reconnect.c, tests/xmlrpctest.c,
	tests/qparamtest.c: Standardize	use of header files.
	* docs/*, po/*: Rebuild docs.
2008-05-23 08:24:41 +00:00
c132e0f712 Fix type-punning warning in remote code.
* qemud/rpcgen_fix.pl: Case-insensitive string match on identifiers.
	* qemud/remote_protocol.c: Update this generated file.
2008-05-23 07:59:00 +00:00
9dc31e159a Fix misc leaks in qparams code, support ; as param separator. Add test suite 2008-05-22 23:49:36 +00:00
7646d59568 Refactor QEMU command line building code for readability 2008-05-22 23:45:09 +00:00
e193b5ddea Apply CPU pinning at startup for QEMU guests 2008-05-22 16:27:20 +00:00
6d372bd468 Add support for VCPU pinning in QEMU driver 2008-05-22 16:20:31 +00:00
7852a63443 Added missing config.h import 2008-05-22 16:18:40 +00:00
42aec3d000 Fix removal of iptable forwarding rules 2008-05-22 15:49:50 +00:00
3e1aeff4c5 Remove duplicated error messages 2008-05-22 15:40:01 +00:00
6a48a6a9e7 Fix misleading comment about numactl 2008-05-22 15:35:51 +00:00
b0d340be77 Quote all args to configure.in macros 2008-05-22 15:34:02 +00:00
508c4226e1 Implement NUMA info/apis in QEMU driver 2008-05-22 15:29:50 +00:00
ab5be538f3 Wire up free memory APIs to remote driver/daemon 2008-05-22 15:20:25 +00:00
dd674689df Fix misc memory leaks 2008-05-22 15:12:25 +00:00
8e5c89ba64 "copy-paste" errors
* docs/formatdomain.html docs/formatdomain.html.in: Anton Protopopov
  pointed out a few "copy-paste" errors
daniel
2008-05-22 14:57:32 +00:00
ecb117a4a8 Fix exit status check with qemu -help 2008-05-21 21:14:36 +00:00
e866e302f8 Fixed couple of memory leaks wrt to virXXXDestroy APIs, and clarify docs to match reality 2008-05-21 20:53:30 +00:00
922fbeb8b7 Don't free C object after destroy method in python 2008-05-21 20:18:20 +00:00
3af422a82e Run qemu with -help when probing for args 2008-05-21 19:43:39 +00:00
8049357ded Avoid initializing driver if pidfie is claimed. Always claim pidfile as root 2008-05-20 16:17:36 +00:00
1290f50284 Notes on the use of listen_tls/listen_tcp
* docs/remote.html docs/remote.html.in: patch from Kenneth Nagin
  with Notes on the use of listen_tls/listen_tcp
Daniel
2008-05-20 15:55:00 +00:00
f011f263a1 plug two leaks
* src/qemu_conf.c (qemudParseXML): Free "obj" unconditionally.
2008-05-16 16:53:44 +00:00
40a82f3066 Make QEMU test suite independant of host OS capabilities 2008-05-16 16:51:30 +00:00
a770c2ab1c * src/xml.c: Include "c-ctype.h". 2008-05-16 14:18:38 +00:00
c1ee35af3b start using c-ctype functions
Up to now, we've been avoiding ctype functions like isspace, isdigit,
etc.  because they are locale-dependent.  Now that we have the c-ctype
functions, we can start using *them*, to make the code more readable
with changes like these:

-        /* This may not work on EBCDIC. */
-        if ((*p >= 'a' && *p <= 'z') ||
-            (*p >= 'A' && *p <= 'Z') ||
-            (*p >= '0' && *p <= '9'))
+        if (c_isalnum(*p))

-    while ((*cur >= '0') && (*cur <= '9')) {
+    while (c_isdigit(*cur)) {

Also, some macros in conf.c used names that conflicted with
standard meaning of "BLANK" and "SPACE", so I've adjusted them
to be in line with the definition of e.g., isblank.
In addition, I've wrapped those statement macros with do {...} while (0),
so that we can't forget the ";" after a use.  There was one like that
already (fixed below).  The missing semicolon would mess up automatic
indenting.
* src/buf.c (virBufferURIEncodeString):
* src/conf.c (IS_EOL, SKIP_BLANKS_AND_EOL, SKIP_BLANKS)
(virConfParseLong, virConfParseValue, virConfParseName)
(virConfParseSeparator, virConfParseStatement, IS_BLANK, IS_CHAR)
(IS_DIGIT, IS_SPACE, SKIP_SPACES):
* src/nodeinfo.c:
* src/qemu_conf.c (qemudParseInterfaceXML):
* src/qemu_driver.c (qemudDomainBlockStats):
* src/sexpr.c:
* src/stats_linux.c:
* src/util.c (virParseNumber, virDiskNameToIndex):
* src/uuid.c (hextobin, virUUIDParse):
* src/virsh.c:
* src/xml.c (parseCpuNumber, virParseCpuSet):
2008-05-16 09:37:44 +00:00
0dc23afb0c avoid a double-free bug
* src/qemu_conf.c (qemudParseXML): Ensure that "obj" is either
NULL or a valid malloc'd pointer before we might "goto error"
where it is freed.
2008-05-16 09:30:10 +00:00
65c2738ea1 Remove use of strcmp() 2008-05-15 20:07:34 +00:00
25f860dc2f Fixe default disk bus selection logic 2008-05-15 16:24:26 +00:00
763a59d84d Support Xenner bootloader 2008-05-15 16:21:11 +00:00
0f1b6dd06a Pass -name arg to QEMU when available 2008-05-15 16:15:17 +00:00
3a7b528d4b Add support for Xen input device in QEMU driver for xenner 2008-05-15 16:11:40 +00:00
2c37f47985 Support paravirt disk configuration for xenner guests 2008-05-15 16:05:41 +00:00
6049594045 avoid using STREQLEN with a literal; use STRPREFIX instead
Likewise for STRNEQLEN -> !STRPREFIX.
* src/nodeinfo.c (linuxNodeInfoCPUPopulate):
* src/qemu_conf.c (qemudNetworkIfaceConnect):
(qemudParseInterfaceXML):
* src/qemu_driver.c (qemudDomainBlockStats):
* src/remote_internal.c (call):
* src/stats_linux.c (xenLinuxDomainDeviceID):
* src/xend_internal.c (xend_parse_sexp_desc):
(xend_get, sexpr_to_xend_topology):
* src/xm_internal.c (xenXMConfigCacheRefresh)
(xenXMDomainFormatXML):
2008-05-15 14:21:34 +00:00
ac8dd26bdf Update Stefan's email addr 2008-05-15 14:04:14 +00:00
1ac88c28c3 Fix default config param 2008-05-15 13:19:34 +00:00
abb9a583a0 * Makefile.maint (sc_prohibit_strcmp): Also prohibit strncmp. 2008-05-15 07:12:43 +00:00
b87f3000aa Change libvirtd description from qemu only to various VM(i.e. Xen, LXC)
Fix typos and comments
2008-05-15 06:12:32 +00:00
0857814dce Ignore generated test binaries 2008-05-14 23:56:33 +00:00
7b8f7ac497 replace two indentation TABs with spaces 2008-05-14 21:23:02 +00:00
1a741570e4 remove trailing blanks 2008-05-14 21:22:04 +00:00
13555de861 exempt gnulib/ from "make syntax-check" strcmp prohibition
* .x-sc_prohibit_strcmp: New file.
* Makefile.am (EXTRA_DIST): Add .x-sc_prohibit_strcmp.
2008-05-14 21:18:27 +00:00
f7fe78dc82 Added listen_addr config param for daemon (Stefan de Konink) 2008-05-14 20:57:20 +00:00
1d73398e8f Remove all use of strcmp, strncmp in favour of STREQ, STREQLEN, STRPREFIX 2008-05-14 19:51:24 +00:00
e830d52573 avoid "not a string literal..." warnings
* src/qemu_conf.c (qemudParseInterfaceXML): Add "%s".
(qemudBuildCommandLine, qemudGenerateXML): Likewise.
2008-05-13 09:15:11 +00:00
773d59e86d Fix some stray leading spaces in Changelog entry for my last commit 2008-05-13 06:51:42 +00:00
94311de539 Enable libvirtd drivers to handle signals, in lxc, sigchld triggers vm cleanup
Mon May 12 23:32:21 PST 2008 David L. Leskovec <dlesko@linux.vnet.ibm.com>

	* qemud/qemud.c: get siginfo with signals, distribute to drivers that
    register a handler
	* src/driver.h: add sighandler function to state driver table
	* src/internal.h: define virStateSigDispatcher functions
	* src/libvirt.c: add __virStateSigDispatcher function
	* src/libvirt_sym.version: add __virStateSigDispatcher
	* src/lxc_driver.c: add sig handler function, cleanup vm when sigchld
    received from container process
	* src/qemu_driver.c: NULL for sig handler (no handler) in state driver
	* src/remote_internal.c: NULL for sig handler (no handler) in state driver
	* src/storage_driver.c: NULL for sig handler (no handler) in state driver
2008-05-13 06:30:58 +00:00
098ba1a433 Add support for -drive QEMU syntax, and virtio bus / disk type 2008-05-09 16:41:19 +00:00
7967662a52 Add new files from gnulib.
* gnulib/lib/c-ctype.c: New file.
* gnulib/lib/c-ctype.h: Likewise.
* gnulib/tests/test-c-ctype.c: Likewise.
* gnulib/tests/test-vc-list-files-git.sh: Likewise.
* gnulib/tests/test-vc-list-files-cvs.sh: Likewise.
2008-05-09 14:03:15 +00:00
25534052bc Use gnulib's c-ctype.h, not <ctype.h>.
# Convert uses of isspace to c_isspace, isdigit to c_isdigit, etc.
re=$(man isspace|grep is.....,.is|sed 's/ -.*//' \
  |tr -s ', \n' \||sed 's/^|//;s/|$//')
git grep -l -E "$re"|grep -Ev 'Chan|gnulib' \
  |xargs perl -pi -e 's/\b('"$re"')\b/c_$1/g'
# Remove all uses of to_uchar
git grep -l to_uchar|xargs perl -pi -e 's/to_uchar\((.*?)\)/$1/g'
* src/util.h (to_uchar): Remove definition.
(TOLOWER): Remove definition.
(__virMacAddrCompare): Use c_tolower, not TOLOWER.
Globally:
  Where needed, change <ctype.h> to <c-ctype.h>.
  Remove unnecessary inclusion of <ctype.h>.
Ensure the global changes are never needed again:
* Makefile.maint (sc_avoid_ctype_macros): Prohibit use of ctype
macros.   Recommend c-ctype.h instead.
(sc_prohibit_c_ctype_without_use): New rule.
(sc_prohibit_ctype_h): New rule.  Disallow use of <ctype.h>.
2008-05-09 13:50:14 +00:00
82892f131b Prepare to use gnulib's c-type module.
* bootstrap: Move module list into separate variable w/less syntax.
(modules): Add c-ctype.
Update the following from gnulib:
* build-aux/useless-if-before-free:
* build-aux/vc-list-files:
* gnulib/lib/Makefile.am:
* gnulib/lib/getaddrinfo.h:
* gnulib/m4/gnulib-cache.m4:
* gnulib/m4/gnulib-comp.m4:
* gnulib/m4/inet_ntop.m4:
* gnulib/tests/Makefile.am:
* gnulib/tests/test-getaddrinfo.c:
2008-05-09 13:46:09 +00:00
5e1bd04692 autostart for running Xen domains
* src/xen_unified.c src/xend_internal.c src/xend_internal.h: patch
  from Cole Robinson implementing autostart for running Xen domains
Daniel
2008-05-09 08:17:18 +00:00
eb046f9d59 sytnax-check: add a check for risky ctype macro use
* Makefile.maint (sc_risky_ctype_macros): New rule.
2008-05-09 08:11:13 +00:00
b8111adf35 avoid one more ctype vs. sign-extension problem
* src/util.c (TOLOWER): Also convert tolower argument.
2008-05-09 08:09:48 +00:00
6d132b546d complete the previous change 2008-05-09 08:06:50 +00:00
712251009b add "const" and "static" attributes to file-scoped globals
* src/storage_backend_fs.c (fileTypeInfo): Add "static" and two
"const" attributes.
(FileTypeInfo): Name the previously anonymous struct,
so the declaration of fileTypeInfo looks more conventional.
* src/xend_internal.c (sound_models): Mark as static, and
as an array of "const" entries.

These were relatively new additions to the list from here:
nm src/*.o|grep ' D '
2008-05-09 08:02:44 +00:00
6ca76333f3 *** empty log message *** 2008-05-09 07:16:30 +00:00
d9691ab277 Added some notes about libvirt string/memory/buffer functions 2008-05-08 14:49:53 +00:00
021bd31706 Added disk target bus type to Xen driver 2008-05-08 14:41:56 +00:00
979edb4a64 Update domain XML docs 2008-05-08 14:20:07 +00:00
7b21582e2d Fix polkit docs 2008-05-08 11:52:21 +00:00
31b17e6d44 Disable sound functions when in proxy 2008-05-07 18:50:23 +00:00
da6316f20e SetVcpus and DomainGetMaxVcpus for QEmu
*  src/qemu_conf.c src/qemu_conf.h src/qemu_driver.c: another patch
   from Cole Robinson adding SetVcpus and DomainGetMaxVcpus for QEmu
Daniel
2008-05-07 16:16:44 +00:00
0feb4c9552 More regression tests for sound support
* tests/qemuxml2argvdata/qemuxml2argv-sound.args
  tests/qemuxml2argvdata/qemuxml2argv-sound.xml
  tests/sexpr2xmldata/sexpr2xml-fv-sound-all.sexpr
  tests/sexpr2xmldata/sexpr2xml-fv-sound-all.xml
  tests/sexpr2xmldata/sexpr2xml-fv-sound.sexpr
  tests/sexpr2xmldata/sexpr2xml-fv-sound.xml
  tests/xmconfigdata/test-fullvirt-sound.cfg
  tests/xmconfigdata/test-fullvirt-sound.xml
  tests/xml2sexprdata/xml2sexpr-fv-sound.sexpr
  tests/xml2sexprdata/xml2sexpr-fv-sound.xml: other regression
  tests from previous commit
Daniel
2008-05-07 14:44:20 +00:00
70f446631f Sound support for QEmu and Xen
* src/qemu_conf.c src/qemu_conf.h src/xend_internal.c
  src/xend_internal.h src/xm_internal.c src/xml.c src/xml.h:
  Patch from Cole Robinson adding sound support for QEmu and Xen
* tests/qemuxml2argvtest.c tests/sexpr2xmltest.c
  tests/xmconfigtest.c tests/xml2sexprtest.c:
  Associated regression tests
Daniel
2008-05-07 14:04:40 +00:00
ff2ea6de4e Added autogenerated TOC for network and storage XML reference docs 2008-05-06 23:23:55 +00:00
2afd1db4a2 Fix build on F9 with missing stddefs.h include 2008-05-06 21:44:12 +00:00
924e953f47 * build-aux/vc-list-files: Add support for bzr.
Author: Soren Hansen <soren@ubuntu.com>
2008-05-06 21:23:20 +00:00
db3f10c807 Check in /usr/sbin for iptables too, for SUSE distros (Jim Fehlig) 2008-05-05 19:58:56 +00:00
b04e40d6a3 Remove bogus check for NULL in qparams breaking connections 2008-05-01 18:11:03 +00:00
3bc5510a63 Remove compat macros now present in onceonly.m4 2008-04-30 16:32:26 +00:00
07efaf941f update from gnulib, again
* gnulib/m4/onceonly.m4: New file.
* gnulib/m4/printf.m4: New file.
* build-aux/useless-if-before-free: Update.
* build-aux/vc-list-files: Update.
* gnulib/lib/arpa_inet.in.h: Update.
* gnulib/lib/stdio-impl.h: Update.
* gnulib/m4/inet_ntop.m4: Update.
2008-04-30 16:11:08 +00:00
a9420c223e Add compat for RHEL-5 autoconf 2008-04-30 15:54:40 +00:00
d50cce8815 Ignore coverage data files 2008-04-30 13:14:40 +00:00
159cb2b97c Added support for network interface model setting 2008-04-30 12:30:55 +00:00
303277a8dc * gnulib/lib/stdio-impl.h: Add another new file from gnulib. 2008-04-29 21:43:50 +00:00
e70d98a578 Ignore python JIT file 2008-04-29 21:42:47 +00:00
eb6c33cd97 * gnulib/tests/test-EOVERFLOW.c: Add another new file from gnulib. 2008-04-29 21:39:38 +00:00
ffdc37c2aa Fix build errors.
* proxy/Makefile.am (libvirt_proxy_LDADD): Add ../gnulib/lib/libgnu.la.
* gnulib/lib/arpa_inet.in.h: Add new file from gnulib.
2008-04-29 21:23:34 +00:00
130426c659 update from gnulib
* gnulib/lib/inet_ntop.h: Remove file.
* gnulib/m4/onceonly_2_57.m4: Remove file.
* build-aux/useless-if-before-free: Update.
* build-aux/vc-list-files: Update.
* gnulib/lib/.cvsignore: Update.
* gnulib/lib/Makefile.am: Update.
* gnulib/lib/fseeko.c: Update.
* gnulib/lib/getaddrinfo.c: Update.
* gnulib/lib/getdelim.c: Update.
* gnulib/lib/inet_ntop.c: Update.
* gnulib/lib/inet_ntop.h: Update.
* gnulib/lib/poll.c: Update.
* gnulib/lib/snprintf.c: Update.
* gnulib/lib/stdlib.in.h: Update.
* gnulib/lib/string.in.h: Update.
* gnulib/lib/sys_socket.in.h: Update.
* gnulib/lib/sys_stat.in.h: Update.
* gnulib/lib/vasnprintf.c: Update.
* gnulib/lib/vasprintf.c: Update.
* gnulib/lib/wchar.in.h: Update.
* gnulib/m4/arpa_inet_h.m4: Update.
* gnulib/m4/extensions.m4: Update.
* gnulib/m4/gnulib-common.m4: Update.
* gnulib/m4/gnulib-comp.m4: Update.
* gnulib/m4/include_next.m4: Update.
* gnulib/m4/inet_ntop.m4: Update.
* gnulib/m4/netinet_in_h.m4: Update.
* gnulib/m4/onceonly_2_57.m4: Update.
* gnulib/m4/physmem.m4: Update.
* gnulib/m4/snprintf.m4: Update.
* gnulib/m4/stdint.m4: Update.
* gnulib/m4/stdio_h.m4: Update.
* gnulib/m4/stdlib_h.m4: Update.
* gnulib/m4/string_h.m4: Update.
* gnulib/m4/strndup.m4: Update.
* gnulib/m4/sys_select_h.m4: Update.
* gnulib/m4/sys_socket_h.m4: Update.
* gnulib/m4/sys_stat_h.m4: Update.
* gnulib/m4/vasnprintf.m4: Update.
* gnulib/tests/Makefile.am: Update.
* gnulib/tests/test-fseeko.c: Update.
* gnulib/tests/test-getaddrinfo.c: Update.
* gnulib/tests/test-getdelim.c: Update.
* gnulib/tests/test-getline.c: Update.
* gnulib/tests/test-lseek.c: Update.
* gnulib/tests/test-snprintf.c: Update.
* gnulib/tests/test-sys_stat.c: Update.
* gnulib/tests/test-vasnprintf.c: Update.
* gnulib/tests/test-vasprintf.c: Update.
2008-04-29 19:52:26 +00:00
0c37f59802 remove useless tests before xmlFree
* src/qemu_conf.c (qemudParseDiskXML, qemudParseInterfaceXML):
(qemudParseInputXML, qemudParseDhcpRangesXML):
* src/remote_internal.c (doRemoteOpen):
* src/storage_conf.c (virStoragePoolDefParseDoc):
* src/xm_internal.c (xenXMParseXMLDisk, xenXMParseXMLVif):
(xenXMParseXMLToConfig, xenXMAttachInterface):
* src/xml.c (virDomainParseXMLDiskDesc, virDomainParseXMLIfDesc):
(virDomainXMLDevID):
2008-04-29 19:43:57 +00:00
e9c7af6864 Tell gcov to look in .libs to find coverage data 2008-04-29 15:41:30 +00:00
624ab0be4c Tell gcov to look in .libs to find coverage data 2008-04-29 15:38:13 +00:00
12af012644 also check for useless test-before-xmlFree
* Makefile.cfg (useless_free_options): Add --name=xmlFree.
2008-04-29 15:06:14 +00:00
c3626941c7 tests: recognize more uses of strcmp.
* Makefile.maint (sc_prohibit_strcmp): Relax regexp.
2008-04-29 14:25:19 +00:00
b1f791adb0 Fix array out of bounds in capabilities code parsing 2008-04-29 14:13:54 +00:00
1968468ca4 Added network XML docs 2008-04-29 14:08:08 +00:00
7573ce3591 Remove bogus test code accidentally left in previous commit 2008-04-29 13:48:41 +00:00
724d0df7e5 Avoid "make syntax-check" failures.
* src/memory.c: Include "config.h".
Remove trailing blanks.
2008-04-29 13:37:20 +00:00
fe394e0baa Avoid in-function #if directives.
* src/parthelper.c [!PED_PARTITION_PROTECTED]: Define to 0.
Remove in-function #ifdefs.
2008-04-29 13:20:46 +00:00
1e43bebf69 * src/parthelper.c: Don't fail if PED_PARTITION_PROTECTED
is not defined because of ancient libparted
          (Soren Hansen).
2008-04-29 08:17:36 +00:00
4ffb0358de Added safer lowlevel memory allocation APis. Converted hash.c and capabilities.c to use them 2008-04-28 21:44:54 +00:00
642b26fab2 Change virBuffer API to prevent common usage errors. Update all users of APIs 2008-04-28 15:14:59 +00:00
7301131e42 fix typo in bootstrap script
* bootstrap: Fix typo: s/gnulib/.gnulib/.  Reported by
Daniel P. Berrange.
2008-04-28 14:12:45 +00:00
13a0a5fa23 Added more bash supressions 2008-04-28 13:55:50 +00:00
45008e03ec Ignore bash bugs under valgrind 2008-04-28 13:36:48 +00:00
212472b813 avoid format-related warnings
* qemud/qemud.c (main): Fix a bogus format string reported as umarked.
* src/virsh.c (cmdVcpupin): Non-literal with no args.
2008-04-28 09:09:52 +00:00
8383c6640a * docs/Makefile.am docs/et.png docs/libvirt.css docs/page.xsl
docs/*.html docs/html/*.html: removed footer, added sponsor logo
  regenerated the html pages also fixed 'make distcheck' as
  pointed by Jim.
Daniel
2008-04-28 08:29:35 +00:00
e6f1123819 Added full support for serial and parallel devices to Xen drivers 2008-04-26 14:22:02 +00:00
49956f0469 Implement serial & parallel device support for QEMU driver 2008-04-25 20:46:13 +00:00
d62a9f2390 Adapt layout to workaround IE6 bugs 2008-04-25 16:23:51 +00:00
0ae7c51f50 Adding Anton Protopopov to AUTHORS
Daniel
2008-04-25 15:48:04 +00:00
384c5cff37 group ownership of /var/run/libvirt/
* qemud/qemud.c: applied patch from Anton Protopopov to change
  group ownership of /var/run/libvirt/ to unix_sock_gid.
Daniel
2008-04-25 15:46:46 +00:00
225ba3f0af avoid problems with sign-extended "char" operand to is* functions
* src/util.h (to_uchar): Define function.
* src/nodeinfo.c (linuxNodeInfoCPUPopulate): Apply to_uchar to is* operand.
* src/qemu_driver.c (qemudExtractMonitorPath): Likewise.
* src/sexpr.c (_string2sexpr): Likewise.
* src/stats_linux.c (xenLinuxDomainDeviceID): Likewise.
* src/util.c (TOLOWER, __virMacAddrCompare, virParseMacAddr): Likewise.
* src/virsh.c (cmdVcpupin, vshCommandGetToken): Likewise.
2008-04-25 14:53:05 +00:00
3ad50bec71 Roll back log change, Daniel 2008-04-24 20:24:18 +00:00
35dccb93d1 "Sponsored by' wording, Daniel 2008-04-24 15:34:18 +00:00
9c38a1d0eb Sponsor logo
* docs/page.xsl docs/redhat.gif docs/*.html: using the shadowman
  logo to indicate Red Hat sponsoring, regenerated.
Daniel
2008-04-24 15:20:06 +00:00
3725f7af65 * AUTHORS: update, list people with commit access
Daniel
2008-04-24 12:35:28 +00:00
ca5600d29d fix the search
* libvirt.css search.php: fix the search box and PHP output
Daniel
2008-04-24 09:44:00 +00:00
2ef22ecee3 * proxy/libvirt_proxy.c and docs/* typo fixing
Atsushi
2008-04-24 09:17:29 +00:00
bc4dacb286 Cosmetic doc improvements
* AUTHORS: indicate that the Logo is by Diana Fong
* docs/index.py: modify to also index subprojects pages
Daniel
2008-04-24 07:56:37 +00:00
c6b067d0c3 Fix generation of NEWS file 2008-04-23 19:39:59 +00:00
ea23f5ae45 Fix wiki link in API docs 2008-04-23 17:45:07 +00:00
9092c3d491 Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
95a7adf3e6 Enable 'make syntax-check's sc_changelog rule.
* Makefile.maint (sc_changelog): Adapt to work with legacy
ChangeLog entry header lines.
* Makefile.cfg (local-checks-to-skip): Remove sc_changelog.
2008-04-21 10:09:07 +00:00
b11f2be30e Python header workaround 2008-04-18 18:31:32 +00:00
f41ba90c18 Work around Python.h name-space pollution.
* python/libvir.c (HAVE_PTHREAD_H): #undef.
Without this, we'd get a redefinition warning.
2008-04-18 18:07:40 +00:00
94353ef660 Re-factor and pretty print differences 2008-04-18 15:28:33 +00:00
484559148d Test script helper for printing string differences 2008-04-18 15:05:29 +00:00
2d206f1d7a avoid compile error when <pthread.h> is absent
* src/internal.h (HAVE_PTHREAD_H): Test with "#ifdef", not "#if".
2008-04-18 09:26:45 +00:00
8df91acf70 Fixes for MinGW.
* configure.in: Fix pkg-config detection of libxml2,
	  add -lgcrypt to gnutls lib.
	* src/Makefile.am: If compiling --without-libvirtd then
	  don't compile any part of the storage driver.
	* configure.in, src/hash.c, src/internal.h: Detect availability
	  of pthread library and compile out mutex code if not available.
	* src/storage_driver.c, src/util.c: Ignore some missing
	  headers on MinGW.
2008-04-18 08:33:23 +00:00
3ff503b923 Remove trailing blank 2008-04-17 19:25:42 +00:00
45b4d4a8ef Remove a trailing blank. 2008-04-17 08:40:53 +00:00
49e6b7221c Complete and cleanup virsh man page
* virsh.1 docs/virsh.pod: fix missing entries and small cleanups
  in the man page, should fix #442429
Daniel
2008-04-15 15:20:43 +00:00
3e4ffa4ec0 Added lxc_container.c to POTFILES.in 2008-04-14 17:44:51 +00:00
ba5411995b Remove unused uid field in virsh control structure.
* src/virsh.c: Remove unused uid field in virsh control structure.
2008-04-10 17:37:23 +00:00
fa8ddb744d HACKING: New file: begin to describe contributor/coding guidelines 2008-04-10 16:56:44 +00:00
3b83d22e79 ensure that no C source file uses TABs for indentation
* Makefile.maint (sc_TAB_in_indentation): New rule.
2008-04-10 16:55:31 +00:00
5bf824ea10 convert TAB-based indentation in C sources to use only spaces
Done using this command (also includes .c.in and .h.in files):
for i in $(g ls-files|grep -E '\.[ch](\.in)?$'|grep -v gnulib); do
  expand -i $i > j && mv j $i;done
2008-04-10 16:54:54 +00:00
dc42a9d2de remove Vim and Emacs variable settings from C source files
Done with these commands:
git grep -l Local.variab|xargs \
  perl -0x3b -pi -e 's,\n+/\*\n \* vim:(.|\n)*,\n,'

git grep -l Local.variab|xargs \
  perl -0x3b -pi -e 's,\n+/\*\n \* Local variables:\n(.|\n)*,\n,'
2008-04-10 16:53:29 +00:00
3ceae485b2 AUTHORS and po updates
* AUTHORS: adding Dave Leskovec and Ryan Scott to the authors list
* po/*: rebuilt
daniel
2008-04-10 13:32:46 +00:00
c863713742 Ask xend to remove device in the config file too
* src/xend_internal.c: applied a patch from Ryan Scott to ask
  xend to save the device removal change in the config file
Daniel
2008-04-10 13:30:17 +00:00
9ae41a71ac * src/Makefile.am src/lxc_conf.c src/lxc_conf.h src/lxc_container.c
src/lxc_container.h src/lxc_driver.c: Applied second set of
  linux container patches from Dave Leskovec adding start/stop
  of domains
Daniel
2008-04-10 07:30:52 +00:00
a2c0fa5f5b Add virsh.pod to EXTRA_DIST
* docs/Makefile.am: Add virsh.pod to EXTRA_DIST.
2008-04-09 15:12:13 +00:00
ed8a6d6a10 Core code contains Xen-ism UUID of dom0 = 0..0
* src/libvirt.c: Remove a Xen-ism from the core code, the
          assumption that dom0's UUID is all zeroes.
2008-04-09 14:03:01 +00:00
c1bc644bad Warn about conn, dom and net fields in virterror
* include/libvirt/virterror.h: Warn about the use of
          conn, dom and net fields in virterror.
2008-04-09 14:00:07 +00:00
b5af30a9f3 Remove extraneous underscore
* src/openvz_conf.c: Remove extraneous underscore which stopped
          file from compiling (Anton Protopopov).
2008-04-09 13:50:27 +00:00
c75dcc25d2 Doc updates post release, Daniel 2008-04-09 07:13:13 +00:00
595 changed files with 184843 additions and 118836 deletions

1
.x-sc_prohibit_strcmp Normal file
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@ -0,0 +1 @@
^gnulib/

28
AUTHORS
View File

@ -5,28 +5,29 @@ The libvirt project was initiated by:
Daniel Veillard <veillard@redhat.com> or <daniel@veillard.com>
The primary maintainers for various code sub-systems / drivers
are:
The primary maintainers and people with commit access rights:
Daniel Veillard <veillard@redhat.com> (xen & everything else)
Karel Zak <kzak@redhat.com> (virsh tool)
Daniel Berrange <berrange@redhat.com> (test & qemu drivers)
Mark McLoughlin <markmc@redhat.com> (network driver)
Richard W.M. Jones <rjones@redhat.com> (remote driver)
Daniel Veillard <veillard@redhat.com>
Daniel Berrange <berrange@redhat.com>
Richard W.M. Jones <rjones@redhat.com>
Karel Zak <kzak@redhat.com>
Mark McLoughlin <markmc@redhat.com>
Anthony Liguori <aliguori@us.ibm.com>
Jim Meyering <meyering@redhat.com>
Jim Fehlig <jfehlig@novell.com>
Chris Lalancette <clalance@redhat.com>
Atsushi SAKAI <sakaia@jp.fujitsu.com>
Dave Leskovec <dlesko@linux.vnet.ibm.com>
Patches have also been contributed by:
David Lutterkort <dlutter@redhat.com>
Anthony Liguori <aliguori@us.ibm.com>
Jim Meyering <meyering@redhat.com>
Andrew Puch <apuch@redhat.com>
Jim Fehlig <jfehlig@novell.com>
Philippe Berthault <philippe.berthault@Bull.net>
Hugh Brock <hbrock@redhat.com>
Michel Ponceau <michel.ponceau@bull.net>
Jeremy Katz <katzj@redhat.com>
Pete Vetere <pvetere@redhat.com>
Atsushi SAKAI <sakaia@jp.fujitsu.com>
Kazuki Mizushima <mizushima.kazuk@jp.fujitsu.com>
Saori Fukuta <fukuta.saori@jp.fujitsu.com>
Tatsuro Enokura <fj7716hz@aa.jp.fujitsu.com>
@ -37,13 +38,16 @@ Patches have also been contributed by:
Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Shuveb Hussain <shuveb@binarykarma.com>
Jim Paris <jim@jtan.com>
Chris Lalancette <clalance@redhat.com>
Guido Guenther <agx@sigxcpu.org>
Daniel Hokka Zakrisson <daniel@hozac.com>
Mads Chr. Olesen <shiyee@shiyee.dk>
Cole Robinson <crobinso@redhat.com>
Anton Protopopov <aspsk2@gmail.com>
Stefan de Konink <dekonink@kinkrsoftware.nl>
Kaitlin Rupert <kaitlin@linux.vnet.ibm.com>
[....send patches to get your name here....]
The libvirt Logo was designed by Diana Fong
-- End

1260
ChangeLog

File diff suppressed because it is too large Load Diff

241
HACKING Normal file
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@ -0,0 +1,241 @@
Libvirt contributor guidelines
==============================
General tips for contributing patches
=====================================
(1) Discuss any large changes on the mailing list first. Post patches
early and listen to feedback.
(2) Post patches in unified diff format. A command similar to this
should work:
diff -urp libvirt.orig/ libvirt.modified/ > libvirt-myfeature.patch
or:
cvs diff -up > libvirt-myfeature.patch
(3) Split large changes into a series of smaller patches, self-contained
if possible, with an explanation of each patch and an explanation of how
the sequence of patches fits together.
(4) Make sure your patches apply against libvirt CVS. Developers
only follow CVS and don't care much about released versions.
(5) Run the automated tests on your code before submitting any changes.
In particular, configure with compile warnings set to -Werror:
./configure --enable-compile-warnings=error
and run the tests:
make check
make syntax-check
make -C tests valgrind
The latter test checks for memory leaks.
(6) Update tests and/or documentation, particularly if you are adding
a new feature or changing the output of a program.
Code indentation
================
Libvirt's C source code generally adheres to some basic code-formatting
conventions. The existing code base is not totally consistent on this
front, but we do prefer that contributed code be formatted similarly.
In short, use spaces-not-TABs for indentation, use 4 spaces for each
indentation level, and other than that, follow the K&R style.
If you use Emacs, add the following to one of one of your start-up files
(e.g., ~/.emacs), to help ensure that you get indentation right:
;;; When editing C sources in libvirt, use this style.
(defun libvirt-c-mode ()
"C mode with adjusted defaults for use with libvirt."
(interactive)
(c-set-style "K&R")
(setq indent-tabs-mode nil) ; indent using spaces, not TABs
(setq c-indent-level 4)
(setq c-basic-offset 4))
(add-hook 'c-mode-hook
'(lambda () (if (string-match "/libvirt" (buffer-file-name))
(libvirt-c-mode))))
Code formatting (especially for new code)
=========================================
With new code, we can be even more strict.
Please apply the following function (using GNU indent) to any new code.
Note that this also gives you an idea of the type of spacing we prefer
around operators and keywords:
indent-libvirt()
{
indent -bad -bap -bbb -bli4 -br -ce -brs -cs -i4 -l75 -lc75 \
-sbi4 -psl -saf -sai -saw -sbi4 -ss -sc -cdw -cli4 -npcs -nbc \
--no-tabs "$@"
}
Note that sometimes you'll have to postprocess that output further, by
piping it through "expand -i", since some leading TABs can get through.
Usually they're in macro definitions or strings, and should be converted
anyhow.
Low level memory management
===========================
Use of the malloc/free/realloc/calloc APIs is deprecated in the libvirt
codebase, because they encourage a number of serious coding bugs and do
not enable compile time verification of checks for NULL. Instead of these
routines, use the macros from memory.h
- eg to allocate a single object:
virDomainPtr domain;
if (VIR_ALLOC(domain) < 0) {
__virRaiseError(VIR_ERROR_NO_MEMORY)
return NULL;
}
- eg to allocate an array of objects
virDomainPtr domains;
int ndomains = 10;
if (VIR_ALLOC_N(domains, ndomains) < 0) {
__virRaiseError(VIR_ERROR_NO_MEMORY)
return NULL;
}
- eg to allocate an array of object pointers
virDomainPtr *domains;
int ndomains = 10;
if (VIR_ALLOC_N(domains, ndomains) < 0) {
__virRaiseError(VIR_ERROR_NO_MEMORY)
return NULL;
}
- eg to re-allocate the array of domains to be longer
ndomains = 20
if (VIR_REALLOC_N(domains, ndomains) < 0) {
__virRaiseError(VIR_ERROR_NO_MEMORY)
return NULL;
}
- eg to free the domain
VIR_FREE(domain);
String comparisons
==================
Do not use the strcmp, strncmp, etc functions directly. Instead use
one of the following semantically named macros
- For strict equality:
STREQ(a,b)
STRNEQ(a,b)
- For case sensitive equality:
STRCASEEQ(a,b)
STRCASENEQ(a,b)
- For strict equality of a substring:
STREQLEN(a,b,n)
STRNEQLEN(a,b,n)
- For case sensitive equality of a substring:
STRCASEEQLEN(a,b,n)
STRCASENEQLEN(a,b,n)
- For strict equality of a prefix:
STRPREFIX(a,b)
Variable length string buffer
=============================
If there is a need for complex string concatenations, avoid using
the usual sequence of malloc/strcpy/strcat/snprintf functions and
make use of the virBuffer API described in buf.h
eg typical usage is as follows:
char *
somefunction(...) {
virBuffer buf = VIR_BUFFER_INITIALIZER;
...
virBufferAddLit(&buf, "<domain>\n");
virBufferVSprint(&buf, " <memory>%d</memory>\n", memory);
...
virBufferAddLit(&buf, "</domain>\n");
....
if (virBufferError(&buf)) {
__virRaiseError(...);
return NULL;
}
return virBufferContentAndReset(&buf);
}
Include files
=============
There are now quite a large number of include files, both libvirt
internal and external, and system includes. To manage all this
complexity it's best to stick to the following general plan for all
*.c source files:
/*
* Copyright notice
* ....
* ....
* ....
*
*/
#include <config.h> Must come first in every file.
#include <stdio.h> Any system includes you need.
#include <string.h>
#include <limits.h>
#if HAVE_NUMACTL Some system includes aren't supported
#include <numa.h> everywhere so need these #if defences.
#endif
#include "internal.h" Include this first, after system includes.
#include "util.h" Any libvirt internal header files.
#include "buf.h"
static myInternalFunc () The actual code.
{
...
Of particular note: *DO NOT* include libvirt/libvirt.h or
libvirt/virterror.h. It is included by "internal.h" already and there
are some special reasons why you cannot include these files
explicitly.

View File

@ -1,7 +1,10 @@
## Process this file with automake to produce Makefile.in
LCOV = lcov
GENHTML = genhtml
SUBDIRS = gnulib/lib include src qemud proxy docs gnulib/tests \
python tests po scripts
python tests po
ACLOCAL_AMFLAGS = -I m4 -I gnulib/m4
@ -10,7 +13,9 @@ EXTRA_DIST = \
libvirt.pc libvirt.pc.in \
$(man_MANS) autobuild.sh \
.x-sc_avoid_if_before_free \
.x-sc_require_config_h
.x-sc_prohibit_strcmp \
.x-sc_require_config_h \
autogen.sh
man_MANS = virsh.1
@ -27,24 +32,15 @@ tests:
@(if [ "$(pythondir)" != "" ] ; then cd python ; \
$(MAKE) MAKEFLAGS+=--silent tests ; fi)
cov: cov-recursive cov-am
cov: clean-cov
mkdir $(top_builddir)/coverage
$(LCOV) -c -o $(top_builddir)/coverage/libvirt.info.tmp -d $(top_srcdir)/src -d $(top_srcdir)/qemud -d $(top_srcdir)/tests
$(LCOV) -r $(top_builddir)/coverage/libvirt.info.tmp -o $(top_builddir)/coverage/libvirt.info *usr*
rm $(top_builddir)/coverage/libvirt.info.tmp
$(GENHTML) -s -t "libvirt" -o $(top_builddir)/coverage --legend $(top_builddir)/coverage/libvirt.info
clean-cov:
rm -rf $(top_builddir)/coverage
cd src && $(MAKE) $(AM_MAKEFLAGS) clean-cov
cov-recursive:
cd src && $(MAKE) $(AM_MAKEFLAGS) cov
cov-am:
rm -rf $(top_builddir)/coverage
mkdir $(top_builddir)/coverage
perl $(srcdir)/scripts/coverage-report.pl src/*.cov > $(top_builddir)/coverage/index.xml
xsltproc $(srcdir)/scripts/coverage-report.xsl \
$(top_builddir)/coverage/index.xml \
> $(top_builddir)/coverage/index.html
for i in $(top_builddir)/src/*.gcov ; do o=`echo $$i | sed -e 's,$(top_builddir)/src,coverage,'` ; \
perl $(srcdir)/scripts/coverage-report-entry.pl $$i > $$o.html ; done
# disable this check
distuninstallcheck:

View File

@ -32,7 +32,6 @@ local-checks-to-skip = \
sc_GPL_version \
sc_always_defined_macros \
sc_cast_of_alloca_return_value \
sc_changelog \
sc_dd_max_sym_length \
sc_error_exit_success \
sc_file_system \
@ -41,7 +40,6 @@ local-checks-to-skip = \
sc_prohibit_jm_in_m4 \
sc_prohibit_quote_without_use \
sc_prohibit_quotearg_without_use \
sc_prohibit_strcmp \
sc_root_tests \
sc_space_tab \
sc_sun_os_names \
@ -54,5 +52,6 @@ local-checks-to-skip = \
useless_free_options = \
--name=sexpr_free \
--name=xmlFree \
--name=xmlXPathFreeContext \
--name=xmlXPathFreeObject

View File

@ -90,8 +90,9 @@ sc_prohibit_atoi_atof:
1>&2; exit 1; } || :
# Use STREQ rather than comparing strcmp == 0, or != 0.
# Similarly, use STREQLEN or STRPREFIX rather than strncmp.
sc_prohibit_strcmp:
@grep -nE '! *str''cmp \(|\<str''cmp \([^)]+\) *==' \
@grep -nE '! *str''n?cmp *\(|\<str''n?cmp *\([^)]+\) *==' \
$$($(VC_LIST_EXCEPT)) && \
{ echo '$(ME): use STREQ in place of the above uses of str''cmp' \
1>&2; exit 1; } || :
@ -157,6 +158,16 @@ sc_prohibit_quotearg_without_use:
sc_prohibit_quote_without_use:
@h='"quote.h"' re='\<quote(_n)? *\(' $(_header_without_use)
# Prohibit the inclusion of c-ctype.h without an actual use.
sc_prohibit_c_ctype_without_use:
@h='[<"]c-ctype.h[">]' re='\<c_($(ctype_re)) *\(' $(_header_without_use)
# Prohibit the inclusion of <ctype.h>.
sc_prohibit_ctype_h:
@grep -E '^# *include *<ctype\.h>' $$($(VC_LIST_EXCEPT)) && \
{ echo "$(ME): don't use ctype.h; instead, use c-ctype.h" \
1>&2; exit 1; } || :
sc_obsolete_symbols:
@grep -nE '\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \
$$($(VC_LIST_EXCEPT)) && \
@ -166,8 +177,12 @@ sc_obsolete_symbols:
# FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
# Each nonempty line must start with a year number, or a TAB.
# Or day-of-week+space.
changelog_entry_header_regexp = \
([12][0-9][0-9][0-9]| .|(Mon|Tue|Wed|Thu|Fri|Sat|Sun) )
sc_changelog:
@grep -n '^[^12 ]' $$(find . -maxdepth 2 -name ChangeLog) && \
@grep -Evn '(^$$|^$(changelog_entry_header_regexp))' \
$$(find . -maxdepth 2 -name ChangeLog) && \
{ echo '$(ME): found unexpected prefix in a ChangeLog' 1>&2; \
exit 1; } || :
@ -287,6 +302,26 @@ sc_trailing_blank:
{ echo '$(ME): found trailing blank(s)' \
1>&2; exit 1; } || :
# Ensure that no C source file uses TABs for indentation.
# Also match *.h.in files, to get libvirt.h.in.
# Exclude files in gnulib, since they're imported.
sc_TAB_in_indentation:
@grep -lE '^ * ' /dev/null \
$$($(VC_LIST_EXCEPT) \
| grep -E '\.[ch](\.in)?$$' \
| grep -v '^gnulib/') && \
{ echo '$(ME): found TAB(s) use for indentation; use spaces' \
1>&2; exit 1; } || :
ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\
|isprint|ispunct|isspace|isupper|isxdigit|tolower|toupper
sc_avoid_ctype_macros:
@grep -E '\b($(ctype_re)) *\(' /dev/null \
$$($(VC_LIST_EXCEPT)) && \
{ echo "$(ME): don't use ctype macros (use c-ctype.h)" \
1>&2; exit 1; } || :
# Match lines like the following, but where there is only one space
# between the options and the description:
# -D, --all-repeated[=delimit-method] print all duplicate lines\n

111
NEWS
View File

@ -4,7 +4,116 @@
Note that this is automatically generated from the news webpage at:
http://libvirt.org/news.html
Releases
0.4.4: Jun 25 2008:
- Bug fixes: QEmu network serialization (Kaitlin Rupert), internal
memory allocation fixes (Chris Lalancette Jim Meyering), virsh
large file config problem (Jim Meyering), xen list APIs when
max is zero, string escape problems in the xm driver
- Improvements: add autogen to tarballs, improve iSCSI support
(Chris Lalancette), localization updates
- Cleanups: const-ness fixed (Daniel P. Berrange), string helpers
for enumeations (Daniel P. Berrange)
0.4.3: Jun 12 2008:
- New features: Linux Container start and stop (Dave Leskovec),
Network interface model settings (Daniel Berrange),serial and parallel
device support for QEmu and Xen (Daniel Berrange),
Sound support for QEmu and Xen (Cole Robinson), vCPU settings for
QEmu (Cole Robinson), support for NUMA and vCPU pinning in QEmu
(Daniel Berrange), new virDomainBlockPeek API (Richard Jones)
- Documentation: coding guidelines (Jim Meyering and Richard Jones),
small man page missing entries and cleanup,
Web site revamp (Daniel Berrange),
typo fixes (Atsushi SAKAI), more docs on network XML format
(Daniel Berrange), libvirt Wiki (Daniel Berrange),
policykit config docs (Cole Robinson), XML domain docs revamp
(Daniel Berrange), docs for remote listen-tls/tcp fixes (Kenneth
Nagin),
- Bug fixes: save change to config file for Xen (Ryan Scott),
fix /var/run/libvirt/ group ownership (Anton Protopopov),
ancient libparted workaround (Soren Hansen), out of bount
array access (Daniel Berrange), remote check bug (Dave Leskovec),
LXC signal and daemon restart problems (Dave Leskovec), bus selection
logic fix in the daemon config (Daniel Berrange), 2 memory leaks
in the daemon (Jim Meyering), daemon pid file logic bug fix
(Daniel Berrange), python generator fixes (Daniel Berrange),
ivarious leaks and memory problem pointed by valgrind (Daniel
Berrange), iptables forwarding cleanup (Daniel Berrange),
Xen cpuset value checking (Hiroyuki Kaguchi), container process
checks for LXC (Dave Leskovec), let xend check block device syntax
(Hiroyuki Kaguchi), UUIDString for python fixes (Cole Robinson)
- Improvements: fixes for MinGW compilation (Richard Jones),
autostart for running Xen domains (Cole Robinson),
control of listening IP for daemon (Stefan de Konink),
various Xenner related fixes and improvements (Daniel Berrange)
autostart status printed in virsh domainfo (Shigeki Sakamoto),
better error messages for xend driver (Richard Jones)
- Code cleanups: OpenVZ compilation (Richard Jones), conn dom and
net fields deprecation in error structures (Richard Jones),
Xen-ism on UUID (Richard Jones), add missing .pod to dist (Richard
Jones), tab cleanup from sources (Jim Meyering), remove unused field
in virsh control structure (Richard Jones), compilation without
pthread.h (Jim Meyering), cleanup of tests (Daniel Berrange),
syntax-check improvements (Jim Meyering), python cleanup,
remove dependancy on libc is_* character tests (Jim Meyering),
format related cleanups (Jim Meyering), cleanup of the buffer
internal APIs (Daniel Berrange), conversion to the new memory
allocation API (Daniel Berrange), lcov coverage testing
(Daniel Berrange), gnulib updates (Jim Meyering), compatibility
fix with RHEL 5 (Daniel Berrange), SuSE compatibility fix (Jim
Fehlig), const'ification of a number of structures (Jim Meyering),
string comparison macro cleanups (Daniel Berrange), character
range testing cleanups and assorted bug fixes (Jim Meyering),
QEmu test fixes (Daniel Berrange), configure macro cleanup (Daniel
Berrange), refactor QEmu command line building code (Daniel Berrange),
type punning warning in remote code (Richard Jones), refactoring
of internal headers (Richard Jones), generic out of memory
testing and associated bug fixes (Daniel Berrange), don't raise
internal error for unsupported features (Kaitlin Rupert),
missing driver entry points (Daniel Berrange)
0.4.2: Apr 8 2008:
- New features: memory operation for QEmu/KVM driver (Cole Robinson),
new routed networking schemas (Mads Olesen)
- Documentation: storage documentation fixes (Atsushi Sakai), many
typo cleanups (Atsushi Sakai), string fixes (Francesco Tombolini)
- Bug fixes: pointer errors in qemu (Jim Meyering), iSCSI login fix
(Chris Lalancette), well formedness error in test driver capabilities
(Cole Robinson), fixes cleanup code when daemon exits (Daniel Berrange),
CD Rom change on live QEmu/KVM domains (Cole Robinson), setting scheduler
parameter is forbidden for read-only (Saori Fukuta)i, fixes for TAP
devices (Daniel Berrange), assorted storage driver fixes (Daniel
Berrange), Makefile fixes (Jim Meyering), Xen-3.2 hypercall fix,
fix iptables rules to avoid blocking traffic within virtual network
(Daniel Berrange), XML output fix for directory pools (Daniel Berrange),
remove dandling domain/net/conn pointers from error data, do not
ask polkit auth when root (Daniel Berrange), handling of fork and
pipe errors when starting the daemon (Richard Jones)
- Improvements: better validation of MAC addresses (Jim Meyering and
Hiroyuki Kaguchi),
virsh vcpupin error report (Shigeki Sakamoto), keep boot tag on
HVM domains (Cole Robinson), virsh non-root should not be limited to read
only anymore (Daniel Berrange), switch to polkit-auth from polkit-grant
(Daniel Berrange), better handling of missing SElinux data (Daniel
Berrange and Jim Meyering), cleanup of the connection opening logic
(Daniel Berrange), first bits of Linux Containers support (Dave Leskovec),
scheduler API support via xend (Saori Fukuta), improvement of the
testing framework and first tests (Jim Meyering), missing error
messages from virsh parameters validation (Shigeki Sakamoto),
improve support of older iscsiadm command (Chris Lalancette),
move linux container support in the daemon (Dan Berrange), older
awk implementation support (Mike Gerdts), NUMA support in test
driver (Cole Robinson), xen and hvm added to test driver capabilities
(Cole Robinson)
- Code cleanup: remove unused getopt header (Jim Meyering), mark more
strings as translatable (Guido G<>nther and Jim Meyering), convert
error strings to something meaningful and translatable (Jim Meyering),
Linux Containers code cleanup, last error initializer (Guido G<>nther)
0.4.1: Mar 3 2008:
- New features: build on MacOSX (Richard Jones), storage management
(Daniel Berrange), Xenner - Xen on KVM - support (Daniel Berrange)

View File

@ -24,7 +24,7 @@ make install
set -o pipefail
make check 2>&1 | tee $RESULTS
make syntax-check 2>&1 | tee -a $RESULTS
make cov
test -x /usr/bin/lcov && make cov
rm -f *.tar.gz
make dist

View File

@ -48,7 +48,7 @@ cleanup_gnulib() {
case ${GNULIB_SRCDIR--} in
-)
if [ ! -d gnulib ]; then
if [ ! -d .gnulib ]; then
echo "$0: getting gnulib files..."
trap cleanup_gnulib 1 2 13 15
@ -64,6 +64,24 @@ esac
gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
<$gnulib_tool || exit
modules='
c-ctype
getaddrinfo
getpass
gettext
mktempd
physmem
poll
posix-shell
strndup
strsep
sys_stat
useless-if-before-free
vasprintf
verify
vc-list-files
'
# Tell gnulib to:
# require LGPLv2+
# put *.m4 files in new gnulib/m4/ dir
@ -75,13 +93,7 @@ $gnulib_tool \
--m4-base=gnulib/m4 \
--source-base=gnulib/lib \
--tests-base=gnulib/tests \
--import physmem getaddrinfo \
sys_stat vasprintf strndup \
strsep poll gettext getpass \
useless-if-before-free \
posix-shell \
mktempd \
vc-list-files
--import $modules
rm -f \
.gitignore \

View File

@ -2,7 +2,7 @@
# Detect instances of "if (p) free (p);".
# Likewise for "if (p != NULL) free (p);". And with braces.
my $VERSION = '2008-03-12 13:06'; # UTC
my $VERSION = '2008-05-01 19:11'; # UTC
# The definition above must lie within the first 8 lines in order
# for the Emacs time-stamp write hook (at end) to update it.
# If you change this file with Emacs, please let the write hook
@ -68,8 +68,8 @@ OPTIONS:
Exit status:
0 no match
1 one or more matches
0 one or more matches
1 no match
2 an error
EXAMPLE:
@ -121,10 +121,10 @@ EOF
$err = EXIT_ERROR, next;
while (defined (my $line = <FH>))
{
if ($line =~
while ($line =~
/\b(if\s*\(\s*(\S+?)(?:\s*!=\s*NULL)?\s*\)
(?: \s*$regexp\s*\((?:\s*\([^)]+\))\s*\2\s*\)|
\s*\{\s*$regexp\s*\((?:\s*\([^)]+\))\s*\2\s*\)\s*;\s*\}))/sx)
(?: \s*$regexp\s*\((?:\s*\([^)]+\))?\s*\2\s*\)|
\s*\{\s*$regexp\s*\((?:\s*\([^)]+\))?\s*\2\s*\)\s*;\s*\}))/sxg)
{
$found_match = 1;
$list

View File

@ -1,6 +1,9 @@
#!/bin/sh
# List version-controlled file names.
# Print a version string.
scriptversion=2008-05-01.10
# Copyright (C) 2006-2008 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
@ -20,38 +23,84 @@
# List the specified version-controlled files.
# With no argument, list them all. With a single DIRECTORY argument,
# list the version-controlled files in that directory.
# This script must be run solely from the top of a $srcdir build directory.
# If there's an argument, it must be a single, "."-relative directory name.
# cvsu is part of the cvsutils package: http://www.red-bean.com/cvsutils/
postprocess=
case $1 in
--help) cat <<EOF
Usage: $0 [-C SRCDIR] [DIR]
Output a list of version-controlled files in DIR (default .), relative to
SRCDIR (default .). SRCDIR must be the top directory of a checkout.
Options:
--help print this help, then exit
--version print version number, then exit
-C SRCDIR change directory to SRCDIR before generating list
Report bugs and patches to <bug-gnulib@gnu.org>.
EOF
exit ;;
--version)
year=`echo "$scriptversion" | sed 's/[^0-9].*//'`
cat <<EOF
vc-list-files $scriptversion
Copyright (C) $year Free Software Foundation, Inc,
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
EOF
exit ;;
-C)
test "$2" = . || postprocess="| sed 's|^|$2/|'"
cd "$2" || exit 1
shift; shift ;;
esac
dir=
case $# in
0) ;;
1) dir=$1 ;;
*) echo "$0: too many arguments" 1>&2
echo "Usage: $0 [DIR]" 1>&2; exit 1;;
echo "Usage: $0 [-C srcdir] [DIR]" 1>&2; exit 1;;
esac
test "x$dir" = x && dir=.
if test -d .git; then
exec git ls-files "$dir"
eval exec git ls-files '"$dir"' $postprocess
elif test -d .hg; then
exec hg locate "$dir/*"
eval exec hg locate '"$dir/*"' $postprocess
elif test -d .bzr; then
test "$postprocess" = '' && postprocess="| sed 's|^\./||'"
eval exec bzr ls --versioned '"$dir"' $postprocess
elif test -d CVS; then
test "$postprocess" = '' && postprocess="| sed 's|^\./||'"
if test -x build-aux/cvsu; then
build-aux/cvsu --find --types=AFGM "$dir"
eval build-aux/cvsu --find --types=AFGM '"$dir"' $postprocess
elif (cvsu --help) >/dev/null 2>&1; then
eval cvsu --find --types=AFGM '"$dir"' $postprocess
else
awk -F/ '{ \
eval awk -F/ \''{ \
if (!$1 && $3 !~ /^-/) { \
f=FILENAME; \
sub(/CVS\/Entries/, "", f); \
print f $2; \
}}' \
$(find ${*-*} -name Entries -print) /dev/null;
}}'\'' \
`find "$dir" -name Entries -print` /dev/null' $postprocess
fi
else
echo "$0: Failed to determine type of version control used in "`pwd` 1>&2
echo "$0: Failed to determine type of version control used in `pwd`" 1>&2
exit 1
fi
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End:

View File

@ -1,9 +1,9 @@
dnl Process this file with autoconf to produce a configure script.
AC_INIT(libvirt, 0.4.2)
AC_CONFIG_SRCDIR(src/libvirt.c)
AC_CONFIG_AUX_DIR(build-aux)
AM_CONFIG_HEADER(config.h)
AC_INIT([libvirt], [0.4.4])
AC_CONFIG_SRCDIR([src/libvirt.c])
AC_CONFIG_AUX_DIR([build-aux])
AM_CONFIG_HEADER([config.h])
dnl Make automake keep quiet about wildcards & other GNUmake-isms
AM_INIT_AUTOMAKE([-Wno-portability])
AC_CANONICAL_HOST
@ -15,12 +15,12 @@ LIBVIRT_VERSION=$LIBVIRT_MAJOR_VERSION.$LIBVIRT_MINOR_VERSION.$LIBVIRT_MICRO_VER
LIBVIRT_VERSION_INFO=`expr $LIBVIRT_MAJOR_VERSION + $LIBVIRT_MINOR_VERSION`:$LIBVIRT_MICRO_VERSION:$LIBVIRT_MINOR_VERSION
LIBVIRT_VERSION_NUMBER=`expr $LIBVIRT_MAJOR_VERSION \* 1000000 + $LIBVIRT_MINOR_VERSION \* 1000 + $LIBVIRT_MICRO_VERSION`
AC_SUBST(LIBVIRT_MAJOR_VERSION)
AC_SUBST(LIBVIRT_MINOR_VERSION)
AC_SUBST(LIBVIRT_MICRO_VERSION)
AC_SUBST(LIBVIRT_VERSION)
AC_SUBST(LIBVIRT_VERSION_INFO)
AC_SUBST(LIBVIRT_VERSION_NUMBER)
AC_SUBST([LIBVIRT_MAJOR_VERSION])
AC_SUBST([LIBVIRT_MINOR_VERSION])
AC_SUBST([LIBVIRT_MICRO_VERSION])
AC_SUBST([LIBVIRT_VERSION])
AC_SUBST([LIBVIRT_VERSION_INFO])
AC_SUBST([LIBVIRT_VERSION_NUMBER])
dnl Required minimum versions of all libs we depend on
LIBXML_REQUIRED="2.5.0"
@ -49,7 +49,7 @@ AC_C_CONST
dnl Make sure we have an ANSI compiler
AM_C_PROTOTYPES
test "x$U" != "x" && AC_MSG_ERROR(Compiler not ANSI compliant)
test "x$U" != "x" && AC_MSG_ERROR([Compiler not ANSI compliant])
dnl Support building Win32 DLLs (must appear *before* AM_PROG_LIBTOOL)
AC_LIBTOOL_WIN32_DLL
@ -58,13 +58,17 @@ AM_PROG_LIBTOOL
AM_PROG_CC_C_O
LIBVIRT_COMPILE_WARNINGS(maximum)
LIBVIRT_COMPILE_WARNINGS([maximum])
dnl Support large files / 64 bit seek offsets.
dnl Use --disable-largefile if you don't want this.
AC_SYS_LARGEFILE
dnl Availability of various common functions (non-fatal if missing).
AC_CHECK_FUNCS([cfmakeraw regexec uname])
AC_CHECK_FUNCS([cfmakeraw regexec uname sched_getaffinity])
dnl Availability of various common headers (non-fatal if missing).
AC_CHECK_HEADERS([pwd.h paths.h sys/syslimits.h sys/utsname.h sys/wait.h winsock2.h])
AC_CHECK_HEADERS([pwd.h paths.h sys/syslimits.h sys/utsname.h sys/wait.h winsock2.h sched.h])
dnl Where are the XDR functions?
dnl If portablexdr is installed, prefer that.
@ -74,27 +78,36 @@ AC_CHECK_LIB([portablexdr],[xdrmem_create],[],[
])
dnl Do we have rpcgen?
AC_PATH_PROG(RPCGEN, rpcgen, no)
AM_CONDITIONAL(RPCGEN, [test "x$ac_cv_path_RPCGEN" != "xno"])
AC_PATH_PROG([RPCGEN], [rpcgen], [no])
AM_CONDITIONAL([RPCGEN], [test "x$ac_cv_path_RPCGEN" != "xno"])
dnl Is this GLIBC's buggy rpcgen?
AM_CONDITIONAL(GLIBC_RPCGEN,
AM_CONDITIONAL([GLIBC_RPCGEN],
[test "x$ac_cv_path_RPCGEN" != "xno" &&
$ac_cv_path_RPCGEN -t </dev/null >/dev/null 2>&1])
dnl pthread?
AC_CHECK_HEADER([pthread.h],
[AC_CHECK_LIB([pthread],[pthread_join],[
AC_DEFINE([HAVE_LIBPTHREAD],[],[Define if pthread (-lpthread)])
AC_DEFINE([HAVE_PTHREAD_H],[],[Define if <pthread.h>])
])])
dnl Miscellaneous external programs.
AC_PATH_PROG(RM, rm, /bin/rm)
AC_PATH_PROG(MV, mv, /bin/mv)
AC_PATH_PROG(TAR, tar, /bin/tar)
AC_PATH_PROG(XMLLINT, xmllint, /usr/bin/xmllint)
AC_PATH_PROG(XSLTPROC, xsltproc, /usr/bin/xsltproc)
AC_PATH_PROG([RM], [rm], [/bin/rm])
AC_PATH_PROG([MV], [mv], [/bin/mv])
AC_PATH_PROG([TAR], [tar], [/bin/tar])
AC_PATH_PROG([XMLLINT], [xmllint], [/usr/bin/xmllint])
AC_PATH_PROG([XSLTPROC], [xsltproc], [/usr/bin/xsltproc])
AC_PROG_MKDIR_P
dnl External programs that we can use if they are available.
dnl We will hard-code paths to these programs unless we cannot
dnl detect them, in which case we'll search for the program
dnl along the $PATH at runtime and fail if it's not there.
AC_PATH_PROG(DNSMASQ, dnsmasq, dnsmasq,
AC_PATH_PROG([DNSMASQ], [dnsmasq], [dnsmasq],
[/sbin:/usr/sbin:/usr/local/sbin:$PATH])
AC_PATH_PROG(BRCTL, brctl, brctl,
AC_PATH_PROG([BRCTL], [brctl], [brctl],
[/sbin:/usr/sbin:/usr/local/sbin:$PATH])
AC_DEFINE_UNQUOTED([DNSMASQ],["$DNSMASQ"],
@ -103,15 +116,15 @@ AC_DEFINE_UNQUOTED([BRCTL],["$BRCTL"],
[Location or name of the brctl program (see bridge-utils)])
dnl Specific dir for HTML output ?
AC_ARG_WITH(html-dir, AC_HELP_STRING([--with-html-dir=path],
[path to base html directory, default $datadir/doc/html]),
AC_ARG_WITH([html-dir], [AC_HELP_STRING([--with-html-dir=path],
[path to base html directory, default $datadir/doc/html])],
[HTML_DIR=$withval], [HTML_DIR='$(datadir)/doc'])
AC_ARG_WITH(html-subdir, AC_HELP_STRING([--with-html-subdir=path],
[directory used under html-dir, default $PACKAGE-$VERSION/html]),
AC_ARG_WITH([html-subdir], [AC_HELP_STRING([--with-html-subdir=path],
[directory used under html-dir, default $PACKAGE-$VERSION/html])],
[test "x$withval" != "x" && HTML_DIR="$HTML_DIR/$withval"],
[HTML_DIR="$HTML_DIR/\$(PACKAGE)-\$(VERSION)/html"])
AC_SUBST(HTML_DIR)
AC_SUBST([HTML_DIR])
dnl if --prefix is /usr, don't use /usr/var for localstatedir
dnl or /usr/etc for sysconfdir
@ -126,19 +139,19 @@ fi
dnl Allow to build without Xen, QEMU/KVM, test or remote driver
AC_ARG_WITH(xen,
AC_ARG_WITH([xen],
[ --with-xen add XEN support (on)],[],[with_xen=yes])
AC_ARG_WITH(qemu,
AC_ARG_WITH([qemu],
[ --with-qemu add QEMU/KVM support (on)],[],[with_qemu=yes])
AC_ARG_WITH(openvz,
AC_ARG_WITH([openvz],
[ --with-openvz add OpenVZ support (off)],[],[with_openvz=no])
AC_ARG_WITH(lxc,
AC_ARG_WITH([lxc],
[ --with-lxc add Linux Container support (off)],[],[with_lxc=no])
AC_ARG_WITH(test,
AC_ARG_WITH([test],
[ --with-test add test driver support (on)],[],[with_test=yes])
AC_ARG_WITH(remote,
AC_ARG_WITH([remote],
[ --with-remote add remote driver support (on)],[],[with_remote=yes])
AC_ARG_WITH(libvirtd,
AC_ARG_WITH([libvirtd],
[ --with-libvirtd add libvirtd support (on)],[],[with_libvirtd=yes])
dnl
@ -149,19 +162,19 @@ if [[ "${LOGNAME}" = "veillard" -a "`pwd`" = "/u/veillard/libvirt" ]] ; then
else
STATIC_BINARIES=
fi
AC_SUBST(STATIC_BINARIES)
AC_SUBST([STATIC_BINARIES])
dnl --enable-debug=(yes|no)
AC_ARG_ENABLE(debug,
AC_HELP_STRING([--enable-debug=no/yes],
[enable debugging output]),[],[enable_debug=yes])
AC_ARG_ENABLE([debug],
[AC_HELP_STRING([--enable-debug=no/yes],
[enable debugging output])],[],[enable_debug=yes])
if test x"$enable_debug" = x"yes"; then
AC_DEFINE(ENABLE_DEBUG, [], [whether debugging is enabled])
AC_DEFINE([ENABLE_DEBUG], [], [whether debugging is enabled])
fi
AC_MSG_CHECKING([where to write libvirtd PID file])
AC_ARG_WITH(remote-pid-file, AC_HELP_STRING([--with-remote-pid-file=[pidfile|none]], [PID file for libvirtd]))
AC_ARG_WITH([remote-pid-file], [AC_HELP_STRING([--with-remote-pid-file=[pidfile|none]], [PID file for libvirtd])])
if test "x$with_remote_pid_file" == "x" ; then
REMOTE_PID_FILE="$localstatedir/run/libvirtd.pid"
elif test "x$with_remote_pid_file" == "xnone" ; then
@ -169,16 +182,16 @@ elif test "x$with_remote_pid_file" == "xnone" ; then
else
REMOTE_PID_FILE="$with_remote_pid_file"
fi
AC_SUBST(REMOTE_PID_FILE)
AC_SUBST([REMOTE_PID_FILE])
AC_MSG_RESULT($REMOTE_PID_FILE)
dnl
dnl init script flavor
dnl
AC_MSG_CHECKING([for init script flavor])
AC_ARG_WITH(init-script,
AC_HELP_STRING([--with-init-scripts=[redhat|auto|none]],
[Style of init scripts to install (defaults to auto)]))
AC_ARG_WITH([init-script],
[AC_HELP_STRING([--with-init-scripts=[redhat|auto|none]],
[Style of init scripts to install (defaults to auto)])])
if test "x$with_init_scripts" = "x" -o "x$with_init_scripts" = "xauto"; then
if test -f /etc/redhat-release ; then
with_init_scripts=redhat
@ -186,19 +199,19 @@ if test "x$with_init_scripts" = "x" -o "x$with_init_scripts" = "xauto"; then
with_init_scripts=none
fi
fi
AM_CONDITIONAL(LIBVIRT_INIT_SCRIPTS_RED_HAT, test x$with_init_scripts = xredhat)
AM_CONDITIONAL([LIBVIRT_INIT_SCRIPTS_RED_HAT], test x$with_init_scripts = xredhat)
AC_MSG_RESULT($with_init_scripts)
dnl
dnl ensure that Fedora's system-config-firewall knows
dnl about libvirt's iptables rules
dnl
AC_ARG_ENABLE(iptables-lokkit,
AC_HELP_STRING([--enable-iptables-lokkit=no/yes/check],
[enable registering libvirt's iptables rules with Fedora's lokkit]),
AC_ARG_ENABLE([iptables-lokkit],
[AC_HELP_STRING([--enable-iptables-lokkit=no/yes/check],
[enable registering libvirt's iptables rules with Fedora's lokkit])],
[],[enable_iptables_lokkit=check])
if test x"$enable_iptables_lokkit" != x"no"; then
AC_PATH_PROG(LOKKIT_PATH, lokkit, [], [/usr/sbin:$PATH])
AC_PATH_PROG([LOKKIT_PATH],[lokkit], [], [/usr/sbin:$PATH])
fi
if test x"$enable_iptables_lokkit" = x"yes" -a x"$LOKKIT_PATH" = x; then
@ -206,19 +219,19 @@ if test x"$enable_iptables_lokkit" = x"yes" -a x"$LOKKIT_PATH" = x; then
fi
if test x"$LOKKIT_PATH" != x; then
AC_DEFINE(ENABLE_IPTABLES_LOKKIT, [], [whether support for Fedora's lokkit is enabled])
AC_DEFINE_UNQUOTED(LOKKIT_PATH, "$LOKKIT_PATH", [path to lokkit binary])
AC_DEFINE([ENABLE_IPTABLES_LOKKIT], [], [whether support for Fedora's lokkit is enabled])
AC_DEFINE_UNQUOTED([LOKKIT_PATH], "$LOKKIT_PATH", [path to lokkit binary])
fi
AC_PATH_PROG(IPTABLES_PATH, iptables, /sbin/iptables)
AC_DEFINE_UNQUOTED(IPTABLES_PATH, "$IPTABLES_PATH", [path to iptables binary])
AC_PATH_PROG([IPTABLES_PATH], [iptables], /sbin/iptables, [/usr/sbin:$PATH])
AC_DEFINE_UNQUOTED([IPTABLES_PATH], "$IPTABLES_PATH", [path to iptables binary])
dnl
dnl Specify the xen-distribution directory to be able to compile on a
dnl non-xenified host
dnl
AC_ARG_WITH(xen-distdir, AC_HELP_STRING([--with-xen-distdir=path],
[distribution directory of Xen, default /usr]))
AC_ARG_WITH([xen-distdir], [AC_HELP_STRING([--with-xen-distdir=path],
[distribution directory of Xen, default /usr])])
if test "x$with_xen_distdir" != "x"
then
CPPFLAGS="$CPPFLAGS -I$withval/install/usr/include"
@ -246,6 +259,10 @@ if test "$with_remote" = "yes" ; then
LIBVIRT_FEATURES="$LIBVIRT_FEATURES -DWITH_REMOTE"
fi
if test "$with_libvirtd" = "yes" ; then
LIBVIRT_FEATURES="$LIBVIRT_FEATURES -DWITH_LIBVIRTD"
fi
if test "$with_xen" = "yes" ; then
dnl search for the Xen store library
AC_SEARCH_LIBS(xs_read, [xenstore],
@ -255,7 +272,7 @@ if test "$with_xen" = "yes" ; then
LIBVIRT_FEATURES="$LIBVIRT_FEATURES -DWITH_XEN"
fi
AC_CHECK_HEADERS(xen/xen.h xen/version.h xen/dom0_ops.h,,[
AC_CHECK_HEADERS([xen/xen.h xen/version.h xen/dom0_ops.h],,[
AC_MSG_ERROR([Cannot find standard Xen headers. Is xen-devel installed?])
],
[#include <stdio.h>
@ -263,8 +280,8 @@ if test "$with_xen" = "yes" ; then
])
dnl Search for the location of <xen/{linux,sys}/privcmd.h>.
AC_CHECK_HEADERS(xen/sys/privcmd.h,,[
AC_CHECK_HEADERS(xen/linux/privcmd.h,,[
AC_CHECK_HEADERS([xen/sys/privcmd.h],,[
AC_CHECK_HEADERS([xen/linux/privcmd.h],,[
AC_MSG_ERROR([Cannot find header file <xen/linux/privcmd.h> or <xen/sys/privcmd.h>. Is xen-devel installed?])
],
[#include <stdio.h>
@ -282,7 +299,7 @@ dnl
dnl check for kernel headers required by qemud/bridge.c
dnl
if test "$with_qemu" = "yes" ; then
AC_CHECK_HEADERS(linux/param.h linux/sockios.h linux/if_bridge.h linux/if_tun.h,,
AC_CHECK_HEADERS([linux/param.h linux/sockios.h linux/if_bridge.h linux/if_tun.h],,
AC_MSG_ERROR([You must install kernel-headers in order to compile libvirt]))
fi
@ -297,11 +314,11 @@ LIBXML_CFLAGS=""
LIBXML_LIBS=""
LIBXML_FOUND="no"
AC_ARG_WITH(libxml, [ --with-libxml=[PFX] libxml2 location])
AC_ARG_WITH([libxml], [ --with-libxml=[PFX] libxml2 location])
if test "x$with_libxml" = "xno" ; then
AC_MSG_CHECKING(for libxml2 libraries >= $LIBXML_REQUIRED)
AC_MSG_ERROR(libxml2 >= $LIBXML_REQUIRED is required for libvirt)
elif test "x$with_libxml" = "x" -a "x$PKG_CONFIG" = "x" ; then
AC_MSG_ERROR([libxml2 >= $LIBXML_REQUIRED is required for libvirt])
elif test "x$with_libxml" = "x" -a "x$PKG_CONFIG" != "x" ; then
PKG_CHECK_MODULES(LIBXML, libxml-2.0 >= $LIBXML_REQUIRED, [LIBXML_FOUND=yes], [LIBXML_FOUND=no])
fi
if test "$LIBXML_FOUND" = "no" ; then
@ -310,7 +327,7 @@ if test "$LIBXML_FOUND" = "no" ; then
fi
AC_MSG_CHECKING(libxml2 $LIBXML_CONFIG >= $LIBXML_REQUIRED )
if ! $LIBXML_CONFIG --version > /dev/null 2>&1 ; then
AC_MSG_ERROR(Could not find libxml2 anywhere (see config.log for details).)
AC_MSG_ERROR([Could not find libxml2 anywhere (see config.log for details).])
fi
vers=`$LIBXML_CONFIG --version | awk -F. '{ printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
minvers=`echo $LIBXML_REQUIRED | awk -F. '{ printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
@ -325,16 +342,16 @@ if test "$LIBXML_FOUND" = "no" ; then
fi
fi
AC_SUBST(LIBXML_CFLAGS)
AC_SUBST(LIBXML_LIBS)
AC_SUBST([LIBXML_CFLAGS])
AC_SUBST([LIBXML_LIBS])
dnl xmlURI structure has query_raw?
old_cflags="$CFLAGS"
old_ldflags="$LDFLAGS"
CFLAGS="$CFLAGS $LIBXML_CFLAGS"
LDFLAGS="$LDFLAGS $LIBXML_LIBS"
AC_CHECK_MEMBER(struct _xmlURI.query_raw,
[AC_DEFINE(HAVE_XMLURI_QUERY_RAW, [], [Have query_raw field in libxml2 xmlURI structure])],,
AC_CHECK_MEMBER([struct _xmlURI.query_raw],
[AC_DEFINE([HAVE_XMLURI_QUERY_RAW], [], [Have query_raw field in libxml2 xmlURI structure])],,
[#include <libxml/uri.h>])
CFLAGS="$old_cflags"
LDFLAGS="$old_ldflags"
@ -348,21 +365,20 @@ if test -z "$PKG_CONFIG" ; then
[GNUTLS_FOUND=yes], [GNUTLS_FOUND=no])
fi
if test "$GNUTLS_FOUND" = "no"; then
AC_CHECK_HEADER([gnutls/gnutls.h],
[],
AC_MSG_ERROR(
[You must install the GnuTLS development package in order to compile libvirt]))
fail=0
old_libs="$LIBS"
AC_CHECK_LIB(gnutls, gnutls_handshake,
[],
[AC_MSG_ERROR(
[You must install the GnuTLS library in order to compile and run libvirt])])
AC_CHECK_HEADER([gnutls/gnutls.h], [], [fail=1])
AC_CHECK_LIB([gnutls], [gnutls_handshake],[], [fail=1], [-lgcrypt])
test $fail = 1 &&
AC_MSG_ERROR([You must install the GnuTLS library in order to compile and run libvirt])
GNUTLS_LIBS=$LIBS
LIBS="$old_libs"
fi
AC_SUBST(GNUTLS_CFLAGS)
AC_SUBST(GNUTLS_LIBS)
AC_SUBST([GNUTLS_CFLAGS])
AC_SUBST([GNUTLS_LIBS])
dnl Old versions of GnuTLS uses types like 'gnutls_session' instead
dnl of 'gnutls_session_t'. Try to detect this type if defined so
@ -371,8 +387,8 @@ old_cflags="$CFLAGS"
old_ldflags="$LDFLAGS"
CFLAGS="$CFLAGS $GNUTLS_CFLAGS"
LDFLAGS="$LDFLAGS $GNUTLS_LIBS"
AC_CHECK_TYPE(gnutls_session,
AC_DEFINE(GNUTLS_1_0_COMPAT,[],
AC_CHECK_TYPE([gnutls_session],
AC_DEFINE([GNUTLS_1_0_COMPAT],[],
[enable GnuTLS 1.0 compatibility macros]),,
[#include <gnutls/gnutls.h>])
CFLAGS="$old_cflags"
@ -380,7 +396,7 @@ LDFLAGS="$old_ldflags"
dnl Cyrus SASL
AC_ARG_WITH(sasl,
AC_ARG_WITH([sasl],
[ --with-sasl use cyrus SASL for authentication],
[],
[with_sasl=check])
@ -392,6 +408,7 @@ if test "x$with_sasl" != "xno"; then
SASL_CFLAGS="-I$with_sasl"
SASL_LIBS="-L$with_sasl"
fi
fail=0
old_cflags="$CFLAGS"
old_libs="$LIBS"
CFLAGS="$CFLAGS $SASL_CFLAGS"
@ -400,35 +417,35 @@ if test "x$with_sasl" != "xno"; then
if test "x$with_sasl" != "xcheck" ; then
with_sasl=no
else
AC_MSG_ERROR(
[You must install the Cyrus SASL development package in order to compile libvirt])
fail=1
fi])
if test "x$with_sasl" != "xno" ; then
AC_CHECK_LIB(sasl2, sasl_client_init,[with_sasl=yes],[
AC_CHECK_LIB([sasl2], [sasl_client_init],[with_sasl=yes],[
if test "x$with_sasl" = "xcheck" ; then
with_sasl=no
else
AC_MSG_ERROR(
[You must install the Cyrus SASL library in order to compile and run libvirt])
fail=1
fi])
fi
test $fail = 1 &&
AC_MSG_ERROR([You must install the Cyrus SASL development package in order to compile libvirt])
CFLAGS="$old_cflags"
LIBS="$old_libs"
SASL_LIBS="$SASL_LIBS -lsasl2"
if test "x$with_sasl" = "xyes" ; then
AC_DEFINE_UNQUOTED(HAVE_SASL, 1,
AC_DEFINE_UNQUOTED([HAVE_SASL], 1,
[whether Cyrus SASL is available for authentication])
fi
fi
AM_CONDITIONAL(HAVE_SASL, [test "x$with_sasl" = "xyes"])
AC_SUBST(SASL_CFLAGS)
AC_SUBST(SASL_LIBS)
AM_CONDITIONAL([HAVE_SASL], [test "x$with_sasl" = "xyes"])
AC_SUBST([SASL_CFLAGS])
AC_SUBST([SASL_LIBS])
dnl PolicyKit library
POLKIT_CFLAGS=
POLKIT_LIBS=
AC_ARG_WITH(polkit,
AC_ARG_WITH([polkit],
[ --with-polkit use PolicyKit for UNIX socket access checks],
[],
[with_polkit=check])
@ -444,29 +461,29 @@ if test "x$with_polkit" = "xyes" -o "x$with_polkit" = "xcheck"; then
fi
])
if test "x$with_polkit" = "xyes" ; then
AC_DEFINE_UNQUOTED(HAVE_POLKIT, 1,
AC_DEFINE_UNQUOTED([HAVE_POLKIT], 1,
[use PolicyKit for UNIX socket access checks])
old_CFLAGS=$CFLAGS
old_LDFLAGS=$LDFLAGS
CFLAGS="$CFLAGS $POLKIT_CFLAGS"
LDFLAGS="$LDFLAGS $POLKIT_LIBS"
AC_CHECK_FUNCS(polkit_context_is_caller_authorized)
AC_CHECK_FUNCS([polkit_context_is_caller_authorized])
CFLAGS="$old_CFLAGS"
LDFLAGS="$old_LDFLAGS"
AC_PATH_PROG(POLKIT_AUTH, polkit-auth)
AC_PATH_PROG([POLKIT_AUTH], [polkit-auth])
if test "x$POLKIT_AUTH" != "x"; then
AC_DEFINE_UNQUOTED([POLKIT_AUTH],["$POLKIT_AUTH"],[Location of polkit-auth program])
fi
fi
fi
AM_CONDITIONAL(HAVE_POLKIT, [test "x$with_polkit" = "xyes"])
AC_SUBST(POLKIT_CFLAGS)
AC_SUBST(POLKIT_LIBS)
AM_CONDITIONAL([HAVE_POLKIT], [test "x$with_polkit" = "xyes"])
AC_SUBST([POLKIT_CFLAGS])
AC_SUBST([POLKIT_LIBS])
dnl Avahi library
AC_ARG_WITH(avahi,
AC_ARG_WITH([avahi],
[ --with-avahi use avahi to advertise remote daemon],
[],
[with_avahi=check])
@ -484,16 +501,16 @@ if test "x$with_avahi" = "xyes" -o "x$with_avahi" = "xcheck"; then
fi
])
if test "x$with_avahi" = "xyes" ; then
AC_DEFINE_UNQUOTED(HAVE_AVAHI, 1,
AC_DEFINE_UNQUOTED([HAVE_AVAHI], 1,
[whether Avahi is used to broadcast server presense])
fi
fi
AM_CONDITIONAL(HAVE_AVAHI, [test "x$with_avahi" = "xyes"])
AC_SUBST(AVAHI_CFLAGS)
AC_SUBST(AVAHI_LIBS)
AM_CONDITIONAL([HAVE_AVAHI], [test "x$with_avahi" = "xyes"])
AC_SUBST([AVAHI_CFLAGS])
AC_SUBST([AVAHI_LIBS])
dnl SELinux
AC_ARG_WITH(selinux,
AC_ARG_WITH([selinux],
[ --with-selinux use SELinux to manage security],
[],
[with_selinux=check])
@ -505,32 +522,68 @@ if test "$with_selinux" != "no"; then
old_libs="$LIBS"
if test "$with_selinux" = "check"; then
AC_CHECK_HEADER([selinux/selinux.h],[],[with_selinux=no])
AC_CHECK_LIB(selinux, fgetfilecon,[],[with_selinux=no])
AC_CHECK_LIB([selinux], [fgetfilecon],[],[with_selinux=no])
if test "$with_selinux" != "no"; then
with_selinux="yes"
fi
else
AC_CHECK_HEADER([selinux/selinux.h],[],
[AC_MSG_ERROR([You must install the SELinux development package in order to compile libvirt])])
AC_CHECK_LIB(selinux, fgetfilecon,[],
[AC_MSG_ERROR([You must install the SELinux development package in order to compile and run libvirt])])
fail=0
AC_CHECK_HEADER([selinux/selinux.h],[],[fail=1])
AC_CHECK_LIB([selinux], [fgetfilecon],[],[fail=1])
test $fail = 1 &&
AC_MSG_ERROR([You must install the SELinux development package in order to compile libvirt])
fi
CFLAGS="$old_cflags"
LIBS="$old_libs"
fi
if test "$with_selinux" = "yes"; then
SELINUX_LIBS="-lselinux"
AC_DEFINE_UNQUOTED(HAVE_SELINUX, 1, [whether SELinux is available for security])
AC_DEFINE_UNQUOTED([HAVE_SELINUX], 1, [whether SELinux is available for security])
fi
AM_CONDITIONAL(HAVE_SELINUX, [test "$with_selinux" != "no"])
AC_SUBST(SELINUX_CFLAGS)
AC_SUBST(SELINUX_LIBS)
AM_CONDITIONAL([HAVE_SELINUX], [test "$with_selinux" != "no"])
AC_SUBST([SELINUX_CFLAGS])
AC_SUBST([SELINUX_LIBS])
dnl NUMA lib
AC_ARG_WITH([numactl],
[ --with-numactl use numactl for host topology info],
[],
[with_numactl=check])
NUMACTL_CFLAGS=
NUMACTL_LIBS=
if test "$with_qemu" = "yes" -a "$with_numactl" != "no"; then
old_cflags="$CFLAGS"
old_libs="$LIBS"
if test "$with_numactl" = "check"; then
AC_CHECK_HEADER([numa.h],[],[with_numactl=no])
AC_CHECK_LIB([numa], [numa_available],[],[with_numactl=no])
if test "$with_numactl" != "no"; then
with_numactl="yes"
fi
else
fail=0
AC_CHECK_HEADER([numa.h],[],[fail=1])
AC_CHECK_LIB([numa], [numa_available],[],[fail=1])
test $fail = 1 &&
AC_MSG_ERROR([You must install the numactl development package in order to compile and run libvirt])
fi
CFLAGS="$old_cflags"
LIBS="$old_libs"
fi
if test "$with_numactl" = "yes"; then
NUMACTL_LIBS="-lnuma"
AC_DEFINE_UNQUOTED([HAVE_NUMACTL], 1, [whether numactl is available for topology info])
fi
AM_CONDITIONAL([HAVE_NUMACTL], [test "$with_numactl" != "no"])
AC_SUBST([NUMACTL_CFLAGS])
AC_SUBST([NUMACTL_LIBS])
dnl virsh libraries
AC_CHECK_HEADERS([readline/readline.h])
# Check for readline.
AC_CHECK_LIB(readline, readline,
AC_CHECK_LIB([readline], [readline],
[lv_use_readline=yes; VIRSH_LIBS="$VIRSH_LIBS -lreadline"],
[lv_use_readline=no])
@ -540,14 +593,14 @@ AC_CHECK_LIB(readline, readline,
if test $lv_use_readline = no; then
lv_saved_libs=$LIBS
LIBS=
AC_SEARCH_LIBS(tgetent, ncurses curses termcap termlib)
AC_SEARCH_LIBS([tgetent], [ncurses curses termcap termlib])
case $LIBS in
no*) ;; # handle "no" and "none required"
*) # anything else is a -lLIBRARY
# Now, check for -lreadline again, also using $LIBS.
# Note: this time we use a different function, so that
# we don't get a cached "no" result.
AC_CHECK_LIB(readline, rl_initialize,
AC_CHECK_LIB([readline], [rl_initialize],
[lv_use_readline=yes
VIRSH_LIBS="$VIRSH_LIBS -lreadline $LIBS"],,
[$LIBS])
@ -565,32 +618,32 @@ if test $lv_use_readline = yes; then
else
READLINE_CFLAGS=
fi
AC_SUBST(READLINE_CFLAGS)
AC_SUBST(VIRSH_LIBS)
AC_SUBST([READLINE_CFLAGS])
AC_SUBST([VIRSH_LIBS])
AC_SUBST(WITH_XEN)
AC_SUBST(LIBVIRT_FEATURES)
AC_SUBST([WITH_XEN])
AC_SUBST([LIBVIRT_FEATURES])
dnl
dnl Storage driver checks
dnl
AC_ARG_WITH(storage-fs,
AC_ARG_WITH([storage-fs],
[ --with-storage-fs with FileSystem backend for the storage driver (on)],[],[with_storage_fs=check])
AC_ARG_WITH(storage-lvm,
AC_ARG_WITH([storage-lvm],
[ --with-storage-lvm with LVM backend for the storage driver (on)],[],[with_storage_lvm=check])
AC_ARG_WITH(storage-iscsi,
AC_ARG_WITH([storage-iscsi],
[ --with-storage-iscsi with iSCSI backend for the storage driver (on)],[],[with_storage_iscsi=check])
AC_ARG_WITH(storage-disk,
AC_ARG_WITH([storage-disk],
[ --with-storage-disk with GPartd Disk backend for the storage driver (on)],[],[with_storage_disk=check])
if test "$with_storage_fs" = "yes" -o "$with_storage_fs" = "check"; then
AC_PATH_PROG(MOUNT, [mount], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(UMOUNT, [umount], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([MOUNT], [mount], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([UMOUNT], [umount], [], [$PATH:/sbin:/usr/sbin])
if test "$with_storage_fs" = "yes" ; then
if test -z "$MOUNT" ; then AC_MSG_ERROR(We need mount for FS storage driver) ; fi
if test -z "$UMOUNT" ; then AC_MSG_ERROR(We need mount for FS storage driver) ; fi
if test -z "$MOUNT" ; then AC_MSG_ERROR([We need mount for FS storage driver]) ; fi
if test -z "$UMOUNT" ; then AC_MSG_ERROR([We need umount for FS storage driver]) ; fi
else
if test -z "$MOUNT" ; then with_storage_fs=no ; fi
if test -z "$UMOUNT" ; then with_storage_fs=no ; fi
@ -599,53 +652,53 @@ if test "$with_storage_fs" = "yes" -o "$with_storage_fs" = "check"; then
fi
if test "$with_storage_fs" = "yes" ; then
AC_DEFINE_UNQUOTED(WITH_STORAGE_FS, 1, [whether FS backend for storage driver is enabled])
AC_DEFINE_UNQUOTED([WITH_STORAGE_FS], 1, [whether FS backend for storage driver is enabled])
AC_DEFINE_UNQUOTED([MOUNT],["$MOUNT"],
[Location or name of the mount program])
AC_DEFINE_UNQUOTED([UMOUNT],["$UMOUNT"],
[Location or name of the mount program])
fi
fi
AM_CONDITIONAL(WITH_STORAGE_FS, [test "$with_storage_fs" = "yes"])
AM_CONDITIONAL([WITH_STORAGE_FS], [test "$with_storage_fs" = "yes"])
AC_PATH_PROG(QEMU_IMG, [qemu-img], [], [$PATH:/sbin:/usr/sbin:/bin:/usr/bin])
AC_PATH_PROG([QEMU_IMG], [qemu-img], [], [$PATH:/sbin:/usr/sbin:/bin:/usr/bin])
if test -n "$QEMU_IMG" ; then
AC_DEFINE_UNQUOTED(HAVE_QEMU_IMG, 1, [whether qemu-img is available for non-raw files])
AC_DEFINE_UNQUOTED([HAVE_QEMU_IMG], 1, [whether qemu-img is available for non-raw files])
AC_DEFINE_UNQUOTED([QEMU_IMG],["$QEMU_IMG"],
[Location or name of the qemu-img program])
fi
AC_PATH_PROG(QCOW_CREATE, [qcow-create], [], [$PATH:/sbin:/usr/sbin:/bin:/usr/bin])
AC_PATH_PROG([QCOW_CREATE], [qcow-create], [], [$PATH:/sbin:/usr/sbin:/bin:/usr/bin])
if test -n "$QCOW_CREATE" ; then
AC_DEFINE_UNQUOTED(HAVE_QCOW_CREATE, 1, [whether qcow-create is available for non-raw files])
AC_DEFINE_UNQUOTED([HAVE_QCOW_CREATE], 1, [whether qcow-create is available for non-raw files])
AC_DEFINE_UNQUOTED([QCOW_CREATE],["$QCOW_CREATE"],
[Location or name of the qcow-create program])
fi
if test "$with_storage_lvm" = "yes" -o "$with_storage_lvm" = "check"; then
AC_PATH_PROG(PVCREATE, [pvcreate], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(VGCREATE, [vgcreate], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(LVCREATE, [lvcreate], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(PVREMOVE, [pvremove], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(VGREMOVE, [vgremove], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(LVREMOVE, [lvremove], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(VGCHANGE, [vgchange], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(PVS, [pvs], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(VGS, [vgs], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(LVS, [lvs], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([PVCREATE], [pvcreate], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([VGCREATE], [vgcreate], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([LVCREATE], [lvcreate], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([PVREMOVE], [pvremove], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([VGREMOVE], [vgremove], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([LVREMOVE], [lvremove], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([VGCHANGE], [vgchange], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([PVS], [pvs], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([VGS], [vgs], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([LVS], [lvs], [], [$PATH:/sbin:/usr/sbin])
if test "$with_storage_lvm" = "yes" ; then
if test -z "$PVCREATE" ; then AC_MSG_ERROR(We need pvcreate for LVM storage driver) ; fi
if test -z "$VGCREATE" ; then AC_MSG_ERROR(We need vgcreate for LVM storage driver) ; fi
if test -z "$LVCREATE" ; then AC_MSG_ERROR(We need lvcreate for LVM storage driver) ; fi
if test -z "$PVREMOVE" ; then AC_MSG_ERROR(We need pvremove for LVM storage driver) ; fi
if test -z "$VGREMOVE" ; then AC_MSG_ERROR(We need vgremove for LVM storage driver) ; fi
if test -z "$LVREMOVE" ; then AC_MSG_ERROR(We need lvremove for LVM storage driver) ; fi
if test -z "$VGCHANGE" ; then AC_MSG_ERROR(We need vgchange for LVM storage driver) ; fi
if test -z "$PVS" ; then AC_MSG_ERROR(We need pvs for LVM storage driver) ; fi
if test -z "$VGS" ; then AC_MSG_ERROR(We need vgs for LVM storage driver) ; fi
if test -z "$LVS" ; then AC_MSG_ERROR(We need lvs for LVM storage driver) ; fi
if test -z "$PVCREATE" ; then AC_MSG_ERROR([We need pvcreate for LVM storage driver]) ; fi
if test -z "$VGCREATE" ; then AC_MSG_ERROR([We need vgcreate for LVM storage driver]) ; fi
if test -z "$LVCREATE" ; then AC_MSG_ERROR([We need lvcreate for LVM storage driver]) ; fi
if test -z "$PVREMOVE" ; then AC_MSG_ERROR([We need pvremove for LVM storage driver]) ; fi
if test -z "$VGREMOVE" ; then AC_MSG_ERROR([We need vgremove for LVM storage driver]) ; fi
if test -z "$LVREMOVE" ; then AC_MSG_ERROR([We need lvremove for LVM storage driver]) ; fi
if test -z "$VGCHANGE" ; then AC_MSG_ERROR([We need vgchange for LVM storage driver]) ; fi
if test -z "$PVS" ; then AC_MSG_ERROR([We need pvs for LVM storage driver]) ; fi
if test -z "$VGS" ; then AC_MSG_ERROR([We need vgs for LVM storage driver]) ; fi
if test -z "$LVS" ; then AC_MSG_ERROR([We need lvs for LVM storage driver]) ; fi
else
if test -z "$PVCREATE" ; then with_storage_lvm=no ; fi
if test -z "$VGCREATE" ; then with_storage_lvm=no ; fi
@ -662,7 +715,7 @@ if test "$with_storage_lvm" = "yes" -o "$with_storage_lvm" = "check"; then
fi
if test "$with_storage_lvm" = "yes" ; then
AC_DEFINE_UNQUOTED(WITH_STORAGE_LVM, 1, [whether LVM backend for storage driver is enabled])
AC_DEFINE_UNQUOTED([WITH_STORAGE_LVM], 1, [whether LVM backend for storage driver is enabled])
AC_DEFINE_UNQUOTED([PVCREATE],["$PVCREATE"],[Location of pvcreate program])
AC_DEFINE_UNQUOTED([VGCREATE],["$VGCREATE"],[Location of vgcreate program])
AC_DEFINE_UNQUOTED([LVCREATE],["$LVCREATE"],[Location of lvcreate program])
@ -675,14 +728,14 @@ if test "$with_storage_lvm" = "yes" -o "$with_storage_lvm" = "check"; then
AC_DEFINE_UNQUOTED([LVS],["$LVS"],[Location of lvs program])
fi
fi
AM_CONDITIONAL(WITH_STORAGE_LVM, [test "$with_storage_lvm" = "yes"])
AM_CONDITIONAL([WITH_STORAGE_LVM], [test "$with_storage_lvm" = "yes"])
if test "$with_storage_iscsi" = "yes" -o "$with_storage_iscsi" = "check"; then
AC_PATH_PROG(ISCSIADM, [iscsiadm], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG([ISCSIADM], [iscsiadm], [], [$PATH:/sbin:/usr/sbin])
if test "$with_storage_iscsi" = "yes" ; then
if test -z "$ISCSIADM" ; then AC_MSG_ERROR(We need iscsiadm for iSCSI storage driver) ; fi
if test -z "$ISCSIADM" ; then AC_MSG_ERROR([We need iscsiadm for iSCSI storage driver]) ; fi
else
if test -z "$ISCSIADM" ; then with_storage_iscsi=no ; fi
@ -690,21 +743,25 @@ if test "$with_storage_iscsi" = "yes" -o "$with_storage_iscsi" = "check"; then
fi
if test "$with_storage_iscsi" = "yes" ; then
AC_DEFINE_UNQUOTED(WITH_STORAGE_ISCSI, 1, [whether iSCSI backend for storage driver is enabled])
AC_DEFINE_UNQUOTED([WITH_STORAGE_ISCSI], 1, [whether iSCSI backend for storage driver is enabled])
AC_DEFINE_UNQUOTED([ISCSIADM],["$ISCSIADM"],[Location of iscsiadm program])
fi
fi
AM_CONDITIONAL(WITH_STORAGE_ISCSI, [test "$with_storage_iscsi" = "yes"])
AM_CONDITIONAL([WITH_STORAGE_ISCSI], [test "$with_storage_iscsi" = "yes"])
LIBPARTED_CFLAGS=
LIBPARTED_LIBS=
if test "$with_storage_disk" = "yes" -o "$with_storage_disk" = "check"; then
AC_PATH_PROG(PARTED, [parted], [], [$PATH:/sbin:/usr/sbin])
if test -z "$PARTED" ; then with_storage_disk=no ; fi
AC_PATH_PROG([PARTED], [parted], [], [$PATH:/sbin:/usr/sbin])
if test -z "$PARTED" ; then
with_storage_disk=no
PARTED_FOUND=no
else
PARTED_FOUND=yes
fi
PARTED_FOUND=yes
if test "$with_storage_disk" != "no" -a "x$PKG_CONFIG" != "x" ; then
PKG_CHECK_MODULES(LIBPARTED, libparted >= $PARTED_REQUIRED, [], [PARTED_FOUND=no])
fi
@ -713,9 +770,9 @@ if test "$with_storage_disk" = "yes" -o "$with_storage_disk" = "check"; then
save_LIBS="$LIBS"
save_CFLAGS="$CFLAGS"
PARTED_FOUND=yes
AC_CHECK_HEADER(parted/parted.h,,[PARTED_FOUND=no])
AC_CHECK_LIB(uuid, uuid_generate,,[PARTED_FOUND=no])
AC_CHECK_LIB(parted, ped_device_read,,[PARTED_FOUND=no])
AC_CHECK_HEADER([parted/parted.h],,[PARTED_FOUND=no])
AC_CHECK_LIB([uuid], [uuid_generate],,[PARTED_FOUND=no])
AC_CHECK_LIB([parted], [ped_device_read],,[PARTED_FOUND=no])
LIBPARTED_LIBS="-luuid -lparted"
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
@ -723,7 +780,7 @@ if test "$with_storage_disk" = "yes" -o "$with_storage_disk" = "check"; then
if test "$PARTED_FOUND" = "no" ; then
if test "$with_storage_disk" = "yes" ; then
AC_MSG_ERROR(We need parted for disk storage driver)
AC_MSG_ERROR([We need parted for disk storage driver])
else
with_storage_disk=no
fi
@ -732,13 +789,13 @@ if test "$with_storage_disk" = "yes" -o "$with_storage_disk" = "check"; then
fi
if test "$with_storage_disk" = "yes"; then
AC_DEFINE_UNQUOTED(WITH_STORAGE_DISK, 1, [whether Disk backend for storage driver is enabled])
AC_DEFINE_UNQUOTED([WITH_STORAGE_DISK], 1, [whether Disk backend for storage driver is enabled])
AC_DEFINE_UNQUOTED([PARTED],["$PARTED"], [Location or name of the parted program])
fi
fi
AM_CONDITIONAL(WITH_STORAGE_DISK, [test "$with_storage_disk" = "yes"])
AC_SUBST(LIBPARTED_CFLAGS)
AC_SUBST(LIBPARTED_LIBS)
AM_CONDITIONAL([WITH_STORAGE_DISK], [test "$with_storage_disk" = "yes"])
AC_SUBST([LIBPARTED_CFLAGS])
AC_SUBST([LIBPARTED_LIBS])
dnl
@ -766,7 +823,7 @@ if test "$with_python" != "no" ; then
echo Found python in environment PYTHON=$PYTHON
with_python=`$PYTHON -c "import sys; print sys.exec_prefix"`
else
AC_PATH_PROG(PYTHON, python python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 python1.6 python1.5)
AC_PATH_PROG([PYTHON], [python python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 python1.6 python1.5])
fi
fi
fi
@ -811,11 +868,11 @@ if test "$with_python" != "no" ; then
else
PYTHON=
fi
AM_CONDITIONAL(WITH_PYTHON, test "$PYTHON_INCLUDES" != "")
AC_SUBST(pythondir)
AC_SUBST(PYTHON_VERSION)
AC_SUBST(PYTHON_INCLUDES)
AC_SUBST(PYTHON_SITE_PACKAGES)
AM_CONDITIONAL([WITH_PYTHON], test "$PYTHON_INCLUDES" != "")
AC_SUBST([pythondir])
AC_SUBST([PYTHON_VERSION])
AC_SUBST([PYTHON_INCLUDES])
AC_SUBST([PYTHON_SITE_PACKAGES])
AC_MSG_CHECKING([whether this host is running a Xen kernel])
RUNNING_XEN=
@ -837,17 +894,18 @@ else
fi
AC_MSG_RESULT($RUNNING_XEND)
AM_CONDITIONAL(ENABLE_XEN_TESTS, [test "$RUNNING_XEN" != "no" -a "$RUNNING_XEND" != "no"])
AM_CONDITIONAL([ENABLE_XEN_TESTS], [test "$RUNNING_XEN" != "no" -a "$RUNNING_XEND" != "no"])
AC_ARG_ENABLE(test-coverage,
[ --enable-test-coverage turn on code coverage instrumentation],
AC_ARG_ENABLE([test-coverage],
[ --enable-test-coverage turn on code coverage instrumentation],
[case "${enableval}" in
yes|no) ;;
*) AC_MSG_ERROR([bad value ${enableval} for test-coverage option]) ;;
esac],
[enableval=no])
enable_coverage=$enableval
if test "${enableval}" = yes; then
if test "${enable_coverage}" = yes; then
gl_COMPILER_FLAGS(-fprofile-arcs)
gl_COMPILER_FLAGS(-ftest-coverage)
AC_SUBST([COVERAGE_CFLAGS], [$COMPILER_FLAGS])
@ -855,9 +913,28 @@ if test "${enableval}" = yes; then
COMPILER_FLAGS=
fi
AC_ARG_ENABLE([test-oom],
[ --enable-test-oom memory allocation failure checking],
[case "${enableval}" in
yes|no) ;;
*) AC_MSG_ERROR([bad value ${enableval} for test-oom option]) ;;
esac],
[enableval=no])
enable_oom=$enableval
if test "${enable_oom}" = yes; then
have_trace=yes
AC_CHECK_HEADER([execinfo.h],[],[have_trace=no])
AC_CHECK_FUNC([backtrace],[],[have_trace=no])
if test "$have_trace" = "yes"; then
AC_DEFINE([TEST_OOM_TRACE], 1, [Whether backtrace() is available])
fi
AC_DEFINE([TEST_OOM], 1, [Whether malloc OOM checking is enabled])
fi
dnl Enable building the proxy?
AC_ARG_WITH(xen-proxy,
AC_ARG_WITH([xen-proxy],
[ --with-xen-proxy add XEN setuid proxy support (on)],[],[with_xen_proxy=auto])
AC_MSG_CHECKING([if Xen setuid proxy is needed])
@ -873,13 +950,13 @@ if test "$with_xen" != "yes"; then
fi
AC_MSG_RESULT([$with_xen_proxy])
AM_CONDITIONAL(WITH_PROXY,[test "$with_xen_proxy" = "yes"])
AM_CONDITIONAL([WITH_PROXY],[test "$with_xen_proxy" = "yes"])
if test "$with_xen_proxy" = "yes"; then
AC_DEFINE(WITH_PROXY, 1, [Whether Xen proxy is enabled])
AC_DEFINE([WITH_PROXY], 1, [Whether Xen proxy is enabled])
fi
dnl Enable building libvirtd?
AM_CONDITIONAL(WITH_LIBVIRTD,[test "x$with_libvirtd" = "xyes"])
AM_CONDITIONAL([WITH_LIBVIRTD],[test "x$with_libvirtd" = "xyes"])
dnl Check for gettext
AM_GNU_GETTEXT_VERSION([0.14.1])
@ -910,19 +987,17 @@ case "$host" in
MINGW_EXTRA_LDFLAGS="-no-undefined"
;;
esac
AC_SUBST(CYGWIN_EXTRA_LDFLAGS)
AC_SUBST(CYGWIN_EXTRA_LIBADD)
AC_SUBST(CYGWIN_EXTRA_PYTHON_LIBADD)
AC_SUBST(MINGW_EXTRA_LDFLAGS)
AC_SYS_LARGEFILE
AC_SUBST([CYGWIN_EXTRA_LDFLAGS])
AC_SUBST([CYGWIN_EXTRA_LIBADD])
AC_SUBST([CYGWIN_EXTRA_PYTHON_LIBADD])
AC_SUBST([MINGW_EXTRA_LDFLAGS])
# Set LV_LIBTOOL_OBJDIR to "." or $lt_cv_objdir, depending on whether
# we're building shared libraries. This is the name of the directory
# in which .o files will be created.
test "$enable_shared" = no && lt_cv_objdir=.
LV_LIBTOOL_OBJDIR=${lt_cv_objdir-.}
AC_SUBST(LV_LIBTOOL_OBJDIR)
AC_SUBST([LV_LIBTOOL_OBJDIR])
# very annoying
rm -f COPYING
@ -934,7 +1009,7 @@ AC_OUTPUT(Makefile src/Makefile include/Makefile docs/Makefile \
gnulib/lib/Makefile \
gnulib/tests/Makefile \
libvirt.pc libvirt.spec \
po/Makefile.in scripts/Makefile \
po/Makefile.in \
include/libvirt/Makefile include/libvirt/libvirt.h \
python/Makefile python/tests/Makefile \
qemud/Makefile \
@ -993,6 +1068,16 @@ AC_MSG_NOTICE([ selinux: $SELINUX_CFLAGS $SELINUX_LIBS])
else
AC_MSG_NOTICE([ selinux: no])
fi
if test "$with_numactl" = "yes" ; then
AC_MSG_NOTICE([ numactl: $NUMACTL_CFLAGS $NUMACTL_LIBS])
else
AC_MSG_NOTICE([ numactl: no])
fi
AC_MSG_NOTICE([])
AC_MSG_NOTICE([Test suite])
AC_MSG_NOTICE([])
AC_MSG_NOTICE([ Coverage: $enable_coverage])
AC_MSG_NOTICE([ Alloc OOM: $enable_oom])
AC_MSG_NOTICE([])
AC_MSG_NOTICE([Miscellaneous])
AC_MSG_NOTICE([])

View File

@ -1,3 +1,4 @@
Makefile
Makefile.in
.memdump
apibuild.pyc

View File

@ -3,83 +3,35 @@
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<!-- Import the rest of the site stylesheets -->
<xsl:import href="site.xsl"/>
<!-- Generate XHTML-1.0 transitional -->
<xsl:output method="xml" encoding="ISO-8859-1" indent="yes"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"/>
<xsl:param name="module">libvirt</xsl:param>
<!-- The table of content for the HTML page -->
<xsl:variable name="menu_name">API Menu</xsl:variable>
<xsl:variable name="develtoc">
<form action="../search.php"
enctype="application/x-www-form-urlencoded" method="get">
<input name="query" type="text" size="20" value=""/>
<input name="submit" type="submit" value="Search ..."/>
</form>
<ul><!-- style="margin-left: -1em" -->
<li><a style="font-weight:bold"
href="{$href_base}index.html">Main Menu</a></li>
<li><a style="font-weight:bold"
href="{$href_base}html/index.html">Modules Index</a></li>
<li><a style="font-weight:bold"
href="index.html">API Menu</a></li>
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doctype-public="-//W3C//DTD XHTML 1.0//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"/>
<xsl:template match="item">
<li><xsl:apply-templates/></li>
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<xsl:template match="entry">
<p>
<b><xsl:value-of select="@who"/></b>
<xsl:text> </xsl:text>
<xsl:value-of select="@date"/>
<xsl:text> </xsl:text>
<xsl:value-of select="@timezone"/>
<span class="author"><xsl:value-of select="@who"/> </span>
<span class="date"><xsl:value-of select="@date"/> </span>
<span class="timezone"><xsl:value-of select="@timezone"/> </span>
</p>
<ul>
<xsl:apply-templates select="item"/>
</ul>
</p>
</xsl:template>
<xsl:template match="log">
<xsl:variable name="title">ChangeLog last entries of <xsl:value-of select="$module"/></xsl:variable>
<html>
<head>
<xsl:call-template name="style"/>
<xsl:element name="title">
<xsl:value-of select="$title"/>
</xsl:element>
</head>
<body>
<div id="container">
<div id="intro">
<div id="adjustments"/>
<div id="pageHeader"/>
<div id="content2">
<xsl:call-template name="titlebox">
<xsl:with-param name="title" select="$title"/>
</xsl:call-template>
<xsl:apply-templates select="entry"/>
</div>
</div>
<xsl:call-template name="linkList2"/>
<xsl:call-template name="bottom"/>
</div>
</body>
</html>
<html>
<body>
<h1>Log of recent changes to libvirt</h1>
<div id="changelog">
<xsl:apply-templates select="entry"/>
</div>
</body>
</html>
</xsl:template>
</xsl:stylesheet>

View File

@ -1,80 +1,229 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>FAQ</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">FAQ</h1><p>Table of Contents:</p><ul><li><a href="FAQ.html#License">License(s)</a></li>
<li><a href="FAQ.html#Installati">Installation</a></li>
<li><a href="FAQ.html#Compilatio">Compilation</a></li>
<li><a href="FAQ.html#Developer">Developer corner</a></li>
</ul><h3><a name="License" id="License">License</a>(s)</h3><ol><li><em>Licensing Terms for libvirt</em>
<p>libvirt is released under the <a href="http://www.opensource.org/licenses/lgpl-license.html">GNU Lesser
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
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This file is autogenerated from FAQ.html.in
Do not edit this file. Changes will be lost.
-->
<head>
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<link rel="stylesheet" type="text/css" href="main.css" />
<link rel="SHORTCUT ICON" href="32favicon.png" />
<title>libvirt: FAQ</title>
<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
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<div id="headerLogo"></div>
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<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
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<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</div>
</form>
</div>
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<div id="body">
<div id="menu">
<ul class="l0">
<li>
<div>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</div>
</li>
<li>
<div>
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</div>
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<li>
<div>
<a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="downloads.html">Downloads</a>
</div>
</li>
<li>
<div>
<a title="Information for users, administrators and developers" class="inactive" href="docs.html">Documentation</a>
</div>
</li>
<li>
<div>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</div>
</li>
<li>
<div>
<span class="active">FAQ</span>
</div>
</li>
<li>
<div>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</div>
</li>
<li>
<div>
<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
</div>
</li>
<li>
<div>
<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
</div>
</li>
<li>
<div>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</div>
</li>
</ul>
</div>
<div id="content">
<h1>FAQ</h1>
<p>Table of Contents:</p>
<ul>
<li>
<a href="FAQ.html#License">License(s)</a>
</li>
<li>
<a href="FAQ.html#Installati">Installation</a>
</li>
<li>
<a href="FAQ.html#Compilatio">Compilation</a>
</li>
<li>
<a href="FAQ.html#Developer">Developer corner</a>
</li>
</ul>
<h3><a name="License" id="License">License</a>(s)</h3>
<ol>
<li>
<em>Licensing Terms for libvirt</em>
<p>libvirt is released under the <a href="http://www.opensource.org/licenses/lgpl-license.html">GNU Lesser
General Public License</a>, see the file COPYING.LIB in the distribution
for the precise wording. The only library that libvirt depends upon is
the Xen store access library which is also licenced under the LGPL.</p>
</li>
<li><em>Can I embed libvirt in a proprietary application ?</em>
<p>Yes. The LGPL allows you to embed libvirt into a proprietary
</li>
<li>
<em>Can I embed libvirt in a proprietary application ?</em>
<p>Yes. The LGPL allows you to embed libvirt into a proprietary
application. It would be graceful to send-back bug fixes and improvements
as patches for possible incorporation in the main development tree. It
will decrease your maintenance costs anyway if you do so.</p>
</li>
</ol><h3><a name="Installati" id="Installati">Installation</a></h3><ol><li><em>Where can I get libvirt</em> ?
</li>
</ol>
<h3>
<a name="Installati" id="Installati">Installation</a>
</h3>
<ol>
<li><em>Where can I get libvirt</em> ?
<p>The original distribution comes from <a href="ftp://libvirt.org/libvirt/">ftp://libvirt.org/libvirt/</a>.</p>
</li>
<li><em>I can't install the libvirt/libvirt-devel RPM packages due to
<li>
<em>I can't install the libvirt/libvirt-devel RPM packages due to
failed dependencies</em>
<p>The most generic solution is to re-fetch the latest src.rpm , and
<p>The most generic solution is to re-fetch the latest src.rpm , and
rebuild it locally with</p>
<p><code>rpm --rebuild libvirt-xxx.src.rpm</code>.</p>
<p>If everything goes well it will generate two binary rpm packages (one
<p><code>rpm --rebuild libvirt-xxx.src.rpm</code>.</p>
<p>If everything goes well it will generate two binary rpm packages (one
providing the shared libs and virsh, and the other one, the -devel
package, providing includes, static libraries and scripts needed to build
applications with libvirt that you can install locally.</p>
<p>One can also rebuild the RPMs from a tarball:</p>
<p><code>rpmbuild -ta libdir-xxx.tar.gz</code></p>
<p>Or from a configured tree with:</p>
<p><code>make rpm</code></p>
</li>
<li><em>Failure to use the API for non-root users</em>
<p>Large parts of the API may only be accessible with root privileges,
<p>One can also rebuild the RPMs from a tarball:</p>
<p>
<code>rpmbuild -ta libdir-xxx.tar.gz</code>
</p>
<p>Or from a configured tree with:</p>
<p>
<code>make rpm</code>
</p>
</li>
<li>
<em>Failure to use the API for non-root users</em>
<p>Large parts of the API may only be accessible with root privileges,
however the read only access to the xenstore data doesnot have to be
forbidden to user, at least for monitoring purposes. If "virsh dominfo"
fails to run as an user, change the mode of the xenstore read-only socket
with:</p>
<p><code>chmod 666 /var/run/xenstored/socket_ro</code></p>
<p>and also make sure that the Xen Daemon is running correctly with local
<p>
<code>chmod 666 /var/run/xenstored/socket_ro</code>
</p>
<p>and also make sure that the Xen Daemon is running correctly with local
HTTP server enabled, this is defined in
<code>/etc/xen/xend-config.sxp</code> which need the following line to be
enabled:</p>
<p><code>(xend-http-server yes)</code></p>
<p>If needed restart the xend daemon after making the change with the
<p>
<code>(xend-http-server yes)</code>
</p>
<p>If needed restart the xend daemon after making the change with the
following command run as root:</p>
<p><code>service xend restart</code></p>
</li>
</ol><h3><a name="Compilatio" id="Compilatio">Compilation</a></h3><ol><li><em>What is the process to compile libvirt ?</em>
<p>As most UNIX libraries libvirt follows the "standard":</p>
<p><code>gunzip -c libvirt-xxx.tar.gz | tar xvf -</code></p>
<p><code>cd libvirt-xxxx</code></p>
<p><code>./configure --help</code></p>
<p>to see the options, then the compilation/installation proper</p>
<p><code>./configure [possible options]</code></p>
<p><code>make</code></p>
<p><code>make install</code></p>
<p>At that point you may have to rerun ldconfig or a similar utility to
<p>
<code>service xend restart</code>
</p>
</li>
</ol>
<h3>
<a name="Compilatio" id="Compilatio">Compilation</a>
</h3>
<ol>
<li>
<em>What is the process to compile libvirt ?</em>
<p>As most UNIX libraries libvirt follows the "standard":</p>
<p>
<code>gunzip -c libvirt-xxx.tar.gz | tar xvf -</code>
</p>
<p>
<code>cd libvirt-xxxx</code>
</p>
<p>
<code>./configure --help</code>
</p>
<p>to see the options, then the compilation/installation proper</p>
<p>
<code>./configure [possible options]</code>
</p>
<p>
<code>make</code>
</p>
<p>
<code>make install</code>
</p>
<p>At that point you may have to rerun ldconfig or a similar utility to
update your list of installed shared libs.</p>
</li>
<li><em>What other libraries are needed to compile/install libvirt ?</em>
<p>Libvirt requires libxenstore, which is usually provided by the xen
</li>
<li>
<em>What other libraries are needed to compile/install libvirt ?</em>
<p>Libvirt requires libxenstore, which is usually provided by the xen
packages as well as the public headers to compile against libxenstore.</p>
</li>
<li><em>I use the CVS version and there is no configure script</em>
<p>The configure script (and other Makefiles) are generated. Use the
</li>
<li>
<em>I use the CVS version and there is no configure script</em>
<p>The configure script (and other Makefiles) are generated. Use the
autogen.sh script to regenerate the configure script and Makefiles,
like:</p>
<p><code>./autogen.sh --prefix=/usr --disable-shared</code></p>
</li>
</ol><h3><a name="Developer" id="Developer">Developer</a> corner</h3><ol><li><em>Troubles compiling or linking programs using libvirt</em>
<p>To simplify the process of reusing the library, libvirt comes with
<p>
<code>./autogen.sh --prefix=/usr --disable-shared</code>
</p>
</li>
</ol>
<h3><a name="Developer" id="Developer">Developer</a> corner</h3>
<ol>
<li>
<em>Troubles compiling or linking programs using libvirt</em>
<p>To simplify the process of reusing the library, libvirt comes with
pkgconfig support, which can be used directly from autoconf support or
via the pkg-config command line tool, like:</p>
<p><code>pkg-config libvirt --libs</code></p>
</li>
</ol></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
<p>
<code>pkg-config libvirt --libs</code>
</p>
</li>
</ol>
</div>
</div>
<div id="footer">
<p id="sponsor">
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
</div>
</body>
</html>

144
docs/FAQ.html.in Normal file
View File

@ -0,0 +1,144 @@
<?xml version="1.0"?>
<html>
<body>
<h1 >FAQ</h1>
<p>Table of Contents:</p>
<ul>
<li>
<a href="FAQ.html#License">License(s)</a>
</li>
<li>
<a href="FAQ.html#Installati">Installation</a>
</li>
<li>
<a href="FAQ.html#Compilatio">Compilation</a>
</li>
<li>
<a href="FAQ.html#Developer">Developer corner</a>
</li>
</ul>
<h3><a name="License" id="License">License</a>(s)</h3>
<ol>
<li>
<em>Licensing Terms for libvirt</em>
<p>libvirt is released under the <a href="http://www.opensource.org/licenses/lgpl-license.html">GNU Lesser
General Public License</a>, see the file COPYING.LIB in the distribution
for the precise wording. The only library that libvirt depends upon is
the Xen store access library which is also licenced under the LGPL.</p>
</li>
<li>
<em>Can I embed libvirt in a proprietary application ?</em>
<p>Yes. The LGPL allows you to embed libvirt into a proprietary
application. It would be graceful to send-back bug fixes and improvements
as patches for possible incorporation in the main development tree. It
will decrease your maintenance costs anyway if you do so.</p>
</li>
</ol>
<h3>
<a name="Installati" id="Installati">Installation</a>
</h3>
<ol>
<li><em>Where can I get libvirt</em> ?
<p>The original distribution comes from <a href="ftp://libvirt.org/libvirt/">ftp://libvirt.org/libvirt/</a>.</p>
</li>
<li>
<em>I can't install the libvirt/libvirt-devel RPM packages due to
failed dependencies</em>
<p>The most generic solution is to re-fetch the latest src.rpm , and
rebuild it locally with</p>
<p><code>rpm --rebuild libvirt-xxx.src.rpm</code>.</p>
<p>If everything goes well it will generate two binary rpm packages (one
providing the shared libs and virsh, and the other one, the -devel
package, providing includes, static libraries and scripts needed to build
applications with libvirt that you can install locally.</p>
<p>One can also rebuild the RPMs from a tarball:</p>
<p>
<code>rpmbuild -ta libdir-xxx.tar.gz</code>
</p>
<p>Or from a configured tree with:</p>
<p>
<code>make rpm</code>
</p>
</li>
<li>
<em>Failure to use the API for non-root users</em>
<p>Large parts of the API may only be accessible with root privileges,
however the read only access to the xenstore data doesnot have to be
forbidden to user, at least for monitoring purposes. If "virsh dominfo"
fails to run as an user, change the mode of the xenstore read-only socket
with:</p>
<p>
<code>chmod 666 /var/run/xenstored/socket_ro</code>
</p>
<p>and also make sure that the Xen Daemon is running correctly with local
HTTP server enabled, this is defined in
<code>/etc/xen/xend-config.sxp</code> which need the following line to be
enabled:</p>
<p>
<code>(xend-http-server yes)</code>
</p>
<p>If needed restart the xend daemon after making the change with the
following command run as root:</p>
<p>
<code>service xend restart</code>
</p>
</li>
</ol>
<h3>
<a name="Compilatio" id="Compilatio">Compilation</a>
</h3>
<ol>
<li>
<em>What is the process to compile libvirt ?</em>
<p>As most UNIX libraries libvirt follows the "standard":</p>
<p>
<code>gunzip -c libvirt-xxx.tar.gz | tar xvf -</code>
</p>
<p>
<code>cd libvirt-xxxx</code>
</p>
<p>
<code>./configure --help</code>
</p>
<p>to see the options, then the compilation/installation proper</p>
<p>
<code>./configure [possible options]</code>
</p>
<p>
<code>make</code>
</p>
<p>
<code>make install</code>
</p>
<p>At that point you may have to rerun ldconfig or a similar utility to
update your list of installed shared libs.</p>
</li>
<li>
<em>What other libraries are needed to compile/install libvirt ?</em>
<p>Libvirt requires libxenstore, which is usually provided by the xen
packages as well as the public headers to compile against libxenstore.</p>
</li>
<li>
<em>I use the CVS version and there is no configure script</em>
<p>The configure script (and other Makefiles) are generated. Use the
autogen.sh script to regenerate the configure script and Makefiles,
like:</p>
<p>
<code>./autogen.sh --prefix=/usr --disable-shared</code>
</p>
</li>
</ol>
<h3><a name="Developer" id="Developer">Developer</a> corner</h3>
<ol>
<li>
<em>Troubles compiling or linking programs using libvirt</em>
<p>To simplify the process of reusing the library, libvirt comes with
pkgconfig support, which can be used directly from autoconf support or
via the pkg-config command line tool, like:</p>
<p>
<code>pkg-config libvirt --libs</code>
</p>
</li>
</ol>
</body>
</html>

View File

@ -4,45 +4,44 @@ SUBDIRS= . examples devhelp
# The directory containing the source code (if it contains documentation).
DOC_SOURCE_DIR=../src
PAGES= index.html bugs.html FAQ.html remote.html
man_MANS=
html = \
book1.html \
index.html \
libvirt-conf.html \
libvirt-lib.html \
libvirt-libvirt.html \
libvirt-virterror.html
apihtml = \
html/index.html \
html/libvirt-libvirt.html \
html/libvirt-virterror.html
png = \
left.png \
up.png \
home.png \
right.png
apipng = \
html/left.png \
html/up.png \
html/home.png \
html/right.png
png = \
16favicon.png \
32favicon.png \
footer_corner.png \
footer_pattern.png \
libvirHeader.png \
libvirLogo.png \
libvirt-header-bg.png \
libvirt-header-logo.png \
libvirtLogo.png \
libvirt-net-logical.png \
libvirt-net-physical.png \
madeWith.png \
windows-cygwin-1.png \
windows-cygwin-2.png \
windows-cygwin-3.png \
et.png
gif = \
Libxml2-Logo-90x34.gif \
architecture.gif \
node.gif \
redhat.gif
node.gif
dot_html = \
FAQ.html \
architecture.html \
bugs.html \
downloads.html \
errors.html \
format.html \
hvsupport.html \
index.html \
intro.html \
libvir.html \
news.html \
python.html \
remote.html \
uri.html
dot_html_in = $(wildcard *.html.in)
dot_html = $(dot_html_in:%.html.in=%.html)
xml = \
libvirt-api.xml \
@ -57,11 +56,16 @@ rng = \
libvirt.rng \
network.rng
fig = \
libvirt-net-logical.fig \
libvirt-net-physical.fig
EXTRA_DIST= \
libvirt-api.xml libvirt-refs.xml apibuild.py \
site.xsl newapi.xsl news.xsl \
$(dot_html) $(gif) html \
$(xml) $(rng)
site.xsl newapi.xsl news.xsl page.xsl ChangeLog.xsl \
$(dot_html) $(dot_html_in) $(gif) $(apihtml) $(apipng) \
$(xml) $(rng) $(fig) $(png) \
virsh.pod ChangeLog.awk
all: web $(top_builddir)/NEWS $(man_MANS)
@ -72,18 +76,30 @@ virsh.1: virsh.pod
api: libvirt-api.xml libvirt-refs.xml $(srcdir)/html/index.html
web: $(PAGES)
web: $(dot_html)
$(PAGES): libvir.html site.xsl
-@(if [ -x $(XSLTPROC) ] ; then \
echo "Rebuilding the HTML Web pages from libvir.html" ; \
$(XSLTPROC) --nonet --html $(top_srcdir)/docs/site.xsl $(top_srcdir)/docs/libvir.html > index.html ; fi );
-@(if [ -x $(XMLLINT) ] ; then \
echo "Validating the HTML Web pages" ; \
$(XMLLINT) --nonet --valid --noout $(PAGES) ; fi );
ChangeLog.xml: ../ChangeLog ChangeLog.awk
awk -f ChangeLog.awk < $< > $@
ChangeLog.html.in: ChangeLog.xml ChangeLog.xsl
@(if [ -x $(XSLTPROC) ] ; then \
echo "Generating $@"; \
name=`echo $@ | sed -e 's/.tmp//'`; \
$(XSLTPROC) --nonet $(top_srcdir)/docs/ChangeLog.xsl $< > $@ || (rm $@ && exit 1) ; fi )
%.html.tmp: %.html.in site.xsl page.xsl sitemap.html.in
@(if [ -x $(XSLTPROC) ] ; then \
echo "Generating $@"; \
name=`echo $@ | sed -e 's/.tmp//'`; \
$(XSLTPROC) --stringparam pagename $$name --nonet --html $(top_srcdir)/docs/site.xsl $< > $@ || (rm $@ && exit 1) ; fi )
%.html: %.html.tmp
@(if [ -x $(XMLLINT) ] ; then \
echo "Validating $@" ; \
$(XMLLINT) --nonet --format --valid $< > $@ || : ; fi );
$(srcdir)/html/index.html: libvirt-api.xml $(srcdir)/newapi.xsl
$(srcdir)/html/index.html: libvirt-api.xml newapi.xsl page.xsl sitemap.html.in
-@(if [ -x $(XSLTPROC) ] ; then \
echo "Rebuilding the HTML pages from the XML API" ; \
$(XSLTPROC) --nonet $(srcdir)/newapi.xsl libvirt-api.xml ; fi )
@ -96,9 +112,9 @@ libvirt-api.xml libvirt-refs.xml: apibuild.py \
$(srcdir)/../src/*.h $(srcdir)/../src/*.c
-(./apibuild.py)
$(top_builddir)/NEWS: $(top_srcdir)/docs/news.xsl $(top_srcdir)/docs/news.html
$(top_builddir)/NEWS: $(top_srcdir)/docs/news.xsl $(top_srcdir)/docs/news.html.in
-@(if [ -x $(XSLTPROC) ] ; then \
$(XSLTPROC) --nonet $(top_srcdir)/docs/news.xsl $(top_srcdir)/docs/news.html > $(top_builddir)/NEWS ; fi );
$(XSLTPROC) --nonet $(top_srcdir)/docs/news.xsl $(top_srcdir)/docs/news.html.in > $(top_builddir)/NEWS ; fi );
clean-local:
rm -f *~ *.bak *.hierarchy *.signals *-unused.txt
@ -114,11 +130,11 @@ install-data-local:
$(srcdir)/redhat.gif $(srcdir)/Libxml2-Logo-90x34.gif \
$(DESTDIR)$(HTML_DIR)
$(mkinstalldirs) $(DESTDIR)$(HTML_DIR)/html
for h in $(html); do \
$(INSTALL) -m 0644 $(srcdir)/html/$$h $(DESTDIR)$(HTML_DIR)/html; done
for p in $(png); do \
$(INSTALL) -m 0644 $(srcdir)/html/$$p $(DESTDIR)$(HTML_DIR)/html; done
for h in $(apihtml); do \
$(INSTALL) -m 0644 $(srcdir)/$$h $(DESTDIR)$(HTML_DIR)/html; done
for p in $(apipng); do \
$(INSTALL) -m 0644 $(srcdir)/$$p $(DESTDIR)$(HTML_DIR)/html; done
uninstall-local:
for h in $(html); do rm $(DESTDIR)$(HTML_DIR)/html/$$h; done
for p in $(png); do rm $(DESTDIR)$(HTML_DIR)/html/$$p; done
for h in $(apihtml); do rm $(DESTDIR)$(HTML_DIR)/$$h; done
for p in $(apipng); do rm $(DESTDIR)$(HTML_DIR)/$$p; done

207
docs/apps.html Normal file
View File

@ -0,0 +1,207 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<!--
This file is autogenerated from apps.html.in
Do not edit this file. Changes will be lost.
-->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<link rel="stylesheet" type="text/css" href="main.css" />
<link rel="SHORTCUT ICON" href="32favicon.png" />
<title>libvirt: Applications using libvirt</title>
<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
<div id="header">
<div id="headerLogo"></div>
<div id="headerSearch">
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
<div>
<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</div>
</form>
</div>
</div>
<div id="body">
<div id="menu">
<ul class="l0">
<li>
<div>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</div>
</li>
<li>
<div>
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
</div>
</li>
<li>
<div>
<a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="downloads.html">Downloads</a>
</div>
</li>
<li>
<div>
<a title="Information for users, administrators and developers" class="inactive" href="docs.html">Documentation</a>
</div>
</li>
<li>
<div>
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<div id="content">
<h1>Applications using <strong>libvirt</strong></h1>
<p>
This page provides an illustration of the wide variety of
applications using the libvirt management API. If you know
of interesting applications not listed on this page, send
a message to the <a href="contact.html">mailing list</a>
to request that it be added here. If your application uses
libvirt as its API, the following graphic is available for
your website to advertise support for libvirt:
</p>
<p class="image">
<img src="madeWith.png" alt="Made with libvirt" />
</p>
<h2>Command line tools</h2>
<dl>
<dt>virsh</dt>
<dd>
An interactive shell, and batch scriptable tool for performing
management tasks on all libvirt managed domains, networks and
storage. This is part of the libvirt core distribution.
</dd>
<dt>
<a href="http://virt-manager.org/">virt-install</a>
</dt>
<dd>
Provides a way to provision new virtual machines from a
OS distribution install tree. It supports provisioning from
local CD images, and the network over NFS, HTTP and FTP.
</dd>
<dt>
<a href="http://virt-manager.org/">virt-clone</a>
</dt>
<dd>
Allows the disk image(s) and configuration for an existing
virtual machine to be cloned to form a new virtual machine.
It automates copying of data across to new disk images, and
updates the UUID, Mac address and name in the configuration
</dd>
<dt>
<a href="http://virt-manager.org/">virt-image</a>
</dt>
<dd>
Provides a way to deploy virtual appliances. It defines a
simplified portable XML format describing the pre-requisites
of a virtual machine. At time of deployment this is translated
into the domain XML format for execution under any libvirt
hypervisor meeting the pre-requisites.
</dd>
<dt>
<a href="http://et.redhat.com/~rjones/virt-df/">virt-df</a>
</dt>
<dd>
Examine the utilization of each filesystem in a virtual machine
from the comfort of the host machine. This tool peeks into the
guest disks and determines how much space is used. It can cope
with common Linux filesystems and LVM volumes.
</dd>
<dt>
<a href="http://et.redhat.com/~rjones/virt-top/">virt-top</a>
</dt>
<dd>
Watch the CPU, memory, network and disk utilization of all
virtual machines running on a host.
</dd>
</dl>
<h2>Desktop applications</h2>
<dl>
<dt>
<a href="http://virt-manager.org/">virt-manager</a>
</dt>
<dd>
A general purpose desktop management tool, able to manage
virtual machines across both local and remotely accessed
hypervisors. It is targeted at home and small office usage
upto managing 10-20 hosts and their VMs.
</dd>
<dt>
<a href="http://virt-manager.org/">virt-viewer</a>
</dt>
<dd>
A lightweight tool for accessing the graphical console
associated with a virtual machine. It can securely connect
to remote consoles supporting the VNC protocol. Also provides
an optional mozilla browser plugin.
</dd>
</dl>
<h2>Web applications</h2>
<dl>
<dt>
<a href="http://ovirt.org/">oVirt</a>
</dt>
<dd>
oVirt provides the ability to manage large numbers of virtual
machines across an entire data center of hosts. It integrates
with FreeIPA for Kerberos authentication, and in the future,
certificate management.
</dd>
</dl>
<h2>LiveCD / Appliances</h2>
<dl>
<dt>
<a href="http://et.redhat.com/~rjones/virt-p2v/">virt-p2v</a>
</dt>
<dd>
A tool for converting a physical machine into a virtual machine. It
is a LiveCD which is booted on the machine to be converted. It collects
a little information from the user and then copies the disks over to
a remote machine and defines the XML for a domain to run the guest.
</dd>
</dl>
</div>
</div>
<div id="footer">
<p id="sponsor">
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
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108
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@ -0,0 +1,108 @@
<html>
<body>
<h1>Applications using <strong>libvirt</strong></h1>
<p>
This page provides an illustration of the wide variety of
applications using the libvirt management API. If you know
of interesting applications not listed on this page, send
a message to the <a href="contact.html">mailing list</a>
to request that it be added here. If your application uses
libvirt as its API, the following graphic is available for
your website to advertise support for libvirt:
</p>
<p class="image">
<img src="madeWith.png" alt="Made with libvirt"/>
</p>
<h2>Command line tools</h2>
<dl>
<dt>virsh</dt>
<dd>
An interactive shell, and batch scriptable tool for performing
management tasks on all libvirt managed domains, networks and
storage. This is part of the libvirt core distribution.
</dd>
<dt><a href="http://virt-manager.org/">virt-install</a></dt>
<dd>
Provides a way to provision new virtual machines from a
OS distribution install tree. It supports provisioning from
local CD images, and the network over NFS, HTTP and FTP.
</dd>
<dt><a href="http://virt-manager.org/">virt-clone</a></dt>
<dd>
Allows the disk image(s) and configuration for an existing
virtual machine to be cloned to form a new virtual machine.
It automates copying of data across to new disk images, and
updates the UUID, Mac address and name in the configuration
</dd>
<dt><a href="http://virt-manager.org/">virt-image</a></dt>
<dd>
Provides a way to deploy virtual appliances. It defines a
simplified portable XML format describing the pre-requisites
of a virtual machine. At time of deployment this is translated
into the domain XML format for execution under any libvirt
hypervisor meeting the pre-requisites.
</dd>
<dt><a href="http://et.redhat.com/~rjones/virt-df/">virt-df</a></dt>
<dd>
Examine the utilization of each filesystem in a virtual machine
from the comfort of the host machine. This tool peeks into the
guest disks and determines how much space is used. It can cope
with common Linux filesystems and LVM volumes.
</dd>
<dt><a href="http://et.redhat.com/~rjones/virt-top/">virt-top</a></dt>
<dd>
Watch the CPU, memory, network and disk utilization of all
virtual machines running on a host.
</dd>
</dl>
<h2>Desktop applications</h2>
<dl>
<dt><a href="http://virt-manager.org/">virt-manager</a></dt>
<dd>
A general purpose desktop management tool, able to manage
virtual machines across both local and remotely accessed
hypervisors. It is targeted at home and small office usage
upto managing 10-20 hosts and their VMs.
</dd>
<dt><a href="http://virt-manager.org/">virt-viewer</a></dt>
<dd>
A lightweight tool for accessing the graphical console
associated with a virtual machine. It can securely connect
to remote consoles supporting the VNC protocol. Also provides
an optional mozilla browser plugin.
</dd>
</dl>
<h2>Web applications</h2>
<dl>
<dt><a href="http://ovirt.org/">oVirt</a></dt>
<dd>
oVirt provides the ability to manage large numbers of virtual
machines across an entire data center of hosts. It integrates
with FreeIPA for Kerberos authentication, and in the future,
certificate management.
</dd>
</dl>
<h2>LiveCD / Appliances</h2>
<dl>
<dt><a href="http://et.redhat.com/~rjones/virt-p2v/">virt-p2v</a></dt>
<dd>
A tool for converting a physical machine into a virtual machine. It
is a LiveCD which is booted on the machine to be converted. It collects
a little information from the user and then copies the disks over to
a remote machine and defines the XML for a domain to run the guest.
</dd>
</dl>
</body>
</html>

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<h1>Domain management architecture</h1>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>libvirt architecture</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">libvirt architecture</h1><p>Currently libvirt supports 2 kind of virtualization, and its
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<h1>libvirt architecture</h1>
<p>Currently libvirt supports 2 kind of virtualization, and its
internal structure is based on a driver model which simplifies adding new
engines:</p><ul><li><a href="#Xen">Xen hypervisor</a></li>
<li><a href="#QEmu">QEmu and KVM based virtualization</a></li>
<li><a href="#drivers">the driver architecture</a></li>
</ul><h3><a name="Xen" id="Xen">Libvirt Xen support</a></h3><p>When running in a Xen environment, programs using libvirt have to execute
engines:</p>
<ul>
<li>
<a href="#Xen">Xen hypervisor</a>
</li>
<li>
<a href="#QEmu">QEmu and KVM based virtualization</a>
</li>
<li>
<a href="#drivers">the driver architecture</a>
</li>
</ul>
<h3>
<a name="Xen" id="Xen">Libvirt Xen support</a>
</h3>
<p>When running in a Xen environment, programs using libvirt have to execute
in "Domain 0", which is the primary Linux OS loaded on the machine. That OS
kernel provides most if not all of the actual drivers used by the set of
domains. It also runs the Xen Store, a database of information shared by the
@ -13,22 +106,32 @@ hypervisor, the kernels, the drivers and the xen daemon. Xend. The xen daemon
supervise the control and execution of the sets of domains. The hypervisor,
drivers, kernels and daemons communicate though a shared system bus
implemented in the hypervisor. The figure below tries to provide a view of
this environment:</p><img src="architecture.gif" alt="The Xen architecture" /><p>The library can be initialized in 2 ways depending on the level of
this environment:</p>
<img src="architecture.gif" alt="The Xen architecture" />
<p>The library can be initialized in 2 ways depending on the level of
privilege of the embedding program. If it runs with root access,
virConnectOpen() can be used, it will use three different ways to connect to
the Xen infrastructure:</p><ul><li>a connection to the Xen Daemon though an HTTP RPC layer</li>
<li>a read/write connection to the Xen Store</li>
<li>use Xen Hypervisor calls</li>
<li>when used as non-root libvirt connect to a proxy daemon running
the Xen infrastructure:</p>
<ul>
<li>a connection to the Xen Daemon though an HTTP RPC layer</li>
<li>a read/write connection to the Xen Store</li>
<li>use Xen Hypervisor calls</li>
<li>when used as non-root libvirt connect to a proxy daemon running
as root and providing read-only support</li>
</ul><p>The library will usually interact with the Xen daemon for any operation
</ul>
<p>The library will usually interact with the Xen daemon for any operation
changing the state of the system, but for performance and accuracy reasons
may talk directly to the hypervisor when gathering state information at
least when possible (i.e. when the running program using libvirt has root
privilege access).</p><p>If it runs without root access virConnectOpenReadOnly() should be used to
privilege access).</p>
<p>If it runs without root access virConnectOpenReadOnly() should be used to
connect to initialize the library. It will then fork a libvirt_proxy
program running as root and providing read_only access to the API, this is
then only useful for reporting and monitoring.</p><h3><a name="QEmu" id="QEmu">Libvirt QEmu and KVM support</a></h3><p>The model for QEmu and KVM is completely similar, basically KVM is based
then only useful for reporting and monitoring.</p>
<h3>
<a name="QEmu" id="QEmu">Libvirt QEmu and KVM support</a>
</h3>
<p>The model for QEmu and KVM is completely similar, basically KVM is based
on QEmu for the process controlling a new domain, only small details differs
between the two. In both case the libvirt API is provided by a controlling
process forked by libvirt in the background and which launch and control the
@ -36,8 +139,13 @@ QEmu or KVM process. That program called libvirt_qemud talks though a specific
protocol to the library, and connects to the console of the QEmu process in
order to control and report on its status. Libvirt tries to expose all the
emulations models of QEmu, the selection is done when creating the new
domain, by specifying the architecture and machine type targeted.</p><p>The code controlling the QEmu process is available in the
<code>qemud/</code> directory.</p><h3><a name="drivers" id="drivers">the driver based architecture</a></h3><p>As the previous section explains, libvirt can communicate using different
domain, by specifying the architecture and machine type targeted.</p>
<p>The code controlling the QEmu process is available in the
<code>qemud/</code> directory.</p>
<h3>
<a name="drivers" id="drivers">the driver based architecture</a>
</h3>
<p>As the previous section explains, libvirt can communicate using different
channels with the current hypervisor, and should also be able to use
different kind of hypervisor. To simplify the internal design, code, ease
maintenance and simplify the support of other virtualization engine the
@ -46,22 +154,34 @@ acting as a front-end for the library API and a set of hypervisor drivers
defining a common set of routines. That way the Xen Daemon access, the Xen
Store one, the Hypervisor hypercall are all isolated in separate C modules
implementing at least a subset of the common operations defined by the
drivers present in driver.h:</p><ul><li>xend_internal: implements the driver functions though the Xen
drivers present in driver.h:</p>
<ul>
<li>xend_internal: implements the driver functions though the Xen
Daemon</li>
<li>xs_internal: implements the subset of the driver available though the
<li>xs_internal: implements the subset of the driver available though the
Xen Store</li>
<li>xen_internal: provide the implementation of the functions possible via
<li>xen_internal: provide the implementation of the functions possible via
direct hypervisor access</li>
<li>proxy_internal: provide read-only Xen access via a proxy, the proxy code
<li>proxy_internal: provide read-only Xen access via a proxy, the proxy code
is in the <code>proxy/</code>directory.</li>
<li>xm_internal: provide support for Xen defined but not running
<li>xm_internal: provide support for Xen defined but not running
domains.</li>
<li>qemu_internal: implement the driver functions for QEmu and
<li>qemu_internal: implement the driver functions for QEmu and
KVM virtualization engines. It also uses a qemud/ specific daemon
which interacts with the QEmu process to implement libvirt API.</li>
<li>test: this is a test driver useful for regression tests of the
<li>test: this is a test driver useful for regression tests of the
front-end part of libvirt.</li>
</ul><p>Note that a given driver may only implement a subset of those functions,
</ul>
<p>Note that a given driver may only implement a subset of those functions,
(for example saving a Xen domain state to disk and restoring it is only
possible though the Xen Daemon), in that case the driver entry points for
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unsupported functions are initialized to NULL.</p>
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<body>
<h1 >libvirt architecture</h1>
<p>Currently libvirt supports 2 kind of virtualization, and its
internal structure is based on a driver model which simplifies adding new
engines:</p>
<ul>
<li>
<a href="#Xen">Xen hypervisor</a>
</li>
<li>
<a href="#QEmu">QEmu and KVM based virtualization</a>
</li>
<li>
<a href="#drivers">the driver architecture</a>
</li>
</ul>
<h3>
<a name="Xen" id="Xen">Libvirt Xen support</a>
</h3>
<p>When running in a Xen environment, programs using libvirt have to execute
in "Domain 0", which is the primary Linux OS loaded on the machine. That OS
kernel provides most if not all of the actual drivers used by the set of
domains. It also runs the Xen Store, a database of information shared by the
hypervisor, the kernels, the drivers and the xen daemon. Xend. The xen daemon
supervise the control and execution of the sets of domains. The hypervisor,
drivers, kernels and daemons communicate though a shared system bus
implemented in the hypervisor. The figure below tries to provide a view of
this environment:</p>
<img src="architecture.gif" alt="The Xen architecture" />
<p>The library can be initialized in 2 ways depending on the level of
privilege of the embedding program. If it runs with root access,
virConnectOpen() can be used, it will use three different ways to connect to
the Xen infrastructure:</p>
<ul>
<li>a connection to the Xen Daemon though an HTTP RPC layer</li>
<li>a read/write connection to the Xen Store</li>
<li>use Xen Hypervisor calls</li>
<li>when used as non-root libvirt connect to a proxy daemon running
as root and providing read-only support</li>
</ul>
<p>The library will usually interact with the Xen daemon for any operation
changing the state of the system, but for performance and accuracy reasons
may talk directly to the hypervisor when gathering state information at
least when possible (i.e. when the running program using libvirt has root
privilege access).</p>
<p>If it runs without root access virConnectOpenReadOnly() should be used to
connect to initialize the library. It will then fork a libvirt_proxy
program running as root and providing read_only access to the API, this is
then only useful for reporting and monitoring.</p>
<h3>
<a name="QEmu" id="QEmu">Libvirt QEmu and KVM support</a>
</h3>
<p>The model for QEmu and KVM is completely similar, basically KVM is based
on QEmu for the process controlling a new domain, only small details differs
between the two. In both case the libvirt API is provided by a controlling
process forked by libvirt in the background and which launch and control the
QEmu or KVM process. That program called libvirt_qemud talks though a specific
protocol to the library, and connects to the console of the QEmu process in
order to control and report on its status. Libvirt tries to expose all the
emulations models of QEmu, the selection is done when creating the new
domain, by specifying the architecture and machine type targeted.</p>
<p>The code controlling the QEmu process is available in the
<code>qemud/</code> directory.</p>
<h3>
<a name="drivers" id="drivers">the driver based architecture</a>
</h3>
<p>As the previous section explains, libvirt can communicate using different
channels with the current hypervisor, and should also be able to use
different kind of hypervisor. To simplify the internal design, code, ease
maintenance and simplify the support of other virtualization engine the
internals have been structured as one core component, the libvirt.c module
acting as a front-end for the library API and a set of hypervisor drivers
defining a common set of routines. That way the Xen Daemon access, the Xen
Store one, the Hypervisor hypercall are all isolated in separate C modules
implementing at least a subset of the common operations defined by the
drivers present in driver.h:</p>
<ul>
<li>xend_internal: implements the driver functions though the Xen
Daemon</li>
<li>xs_internal: implements the subset of the driver available though the
Xen Store</li>
<li>xen_internal: provide the implementation of the functions possible via
direct hypervisor access</li>
<li>proxy_internal: provide read-only Xen access via a proxy, the proxy code
is in the <code>proxy/</code>directory.</li>
<li>xm_internal: provide support for Xen defined but not running
domains.</li>
<li>qemu_internal: implement the driver functions for QEmu and
KVM virtualization engines. It also uses a qemud/ specific daemon
which interacts with the QEmu process to implement libvirt API.</li>
<li>test: this is a test driver useful for regression tests of the
front-end part of libvirt.</li>
</ul>
<p>Note that a given driver may only implement a subset of those functions,
(for example saving a Xen domain state to disk and restoring it is only
possible though the Xen Daemon), in that case the driver entry points for
unsupported functions are initialized to NULL.</p>
<p></p>
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<h1>Network management architecture</h1>
<h2>Architecture illustration</h2>
<p>
The diagrams below illustrate some of the network configurations
enabled by the libvirt networking APIs
</p>
<ul>
<li><strong>VLAN 1</strong>. This virtual network has connectivity
to <code>LAN 2</code> with traffic forwarded and NATed.
</li>
<li><strong>VLAN 2</strong>. This virtual network is completely
isolated from any physical LAN.
</li>
<li><strong>Guest A</strong>. The first network interface is bridged
to the physical <code>LAN 1</code>. The second interface is connected
to a virtual network <code>VLAN 1</code>.
</li>
<li><strong>Guest B</strong>. The first network interface is connected
to a virtual network <code>VLAN 1</code>, giving it limited NAT
based connectivity to LAN2. It has a second network interface
connected to <code>VLAN 2</code>. It acts a router allowing limited
traffic between the two VLANs, thus giving <code>Guest C</code>
connectivity to the physical <code>LAN 2</code>.
</li>
<li><strong>Guest C</strong>. The only network interface is connected
to a virtual network <code>VLAN 2</code>. It has no direct connectivity
to a physical LAN, relying on <code>Guest B</code> to route traffic
on its behalf.
</li>
</ul>
<h3>Logical diagram</h3>
<p class="image">
<img src="libvirt-net-logical.png" alt="Logical network architecture" />
</p>
<h3>Physical diagram</h3>
<p class="image">
<img src="libvirt-net-physical.png" alt="Physical network architecture" />
</p>
</div>
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<html>
<body>
<h1>Network management architecture</h1>
<h2>Architecture illustration</h2>
<p>
The diagrams below illustrate some of the network configurations
enabled by the libvirt networking APIs
</p>
<ul>
<li><strong>VLAN 1</strong>. This virtual network has connectivity
to <code>LAN 2</code> with traffic forwarded and NATed.
</li>
<li><strong>VLAN 2</strong>. This virtual network is completely
isolated from any physical LAN.
</li>
<li><strong>Guest A</strong>. The first network interface is bridged
to the physical <code>LAN 1</code>. The second interface is connected
to a virtual network <code>VLAN 1</code>.
</li>
<li><strong>Guest B</strong>. The first network interface is connected
to a virtual network <code>VLAN 1</code>, giving it limited NAT
based connectivity to LAN2. It has a second network interface
connected to <code>VLAN 2</code>. It acts a router allowing limited
traffic between the two VLANs, thus giving <code>Guest C</code>
connectivity to the physical <code>LAN 2</code>.
</li>
<li><strong>Guest C</strong>. The only network interface is connected
to a virtual network <code>VLAN 2</code>. It has no direct connectivity
to a physical LAN, relying on <code>Guest B</codE> to route traffic
on its behalf.
</li>
</ul>
<h3>Logical diagram</h3>
<p class="image">
<img src="libvirt-net-logical.png" alt="Logical network architecture"/>
</p>
<h3>Physical diagram</h3>
<p class="image">
<img src="libvirt-net-physical.png" alt="Physical network architecture"/>
</p>
</body>
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<h1>Node device management architecture</h1>
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<h1>Storage management architecture</h1>
<p>
The storage management APIs are based around 2 core concepts
</p>
<ol>
<li><strong>Volume</strong> - a single storage volume which can
be assigned to a guest, or used for creating further pools. A
volume is either a block device, a raw file, or a special format
file.
</li>
<li><strong>Pool</strong> - provides a means for taking a chunk
of storage and carving it up into volumes. A pool can be used to
manage things such as a physical disk, a NFS server, a iSCSI target,
a host adapter, an LVM group.
</li>
</ol>
<p>
These two concepts are mapped through to two libvirt objects, a
<code>virStorageVolPtr</code> and a <code>virStoragePoolPtr</code>,
each with a collection of APIs for their management.
</p>
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<body>
<h1>Storage management architecture</h1>
<p>
The storage management APIs are based around 2 core concepts
</p>
<ol>
<li>
<strong>Volume</strong> - a single storage volume which can
be assigned to a guest, or used for creating further pools. A
volume is either a block device, a raw file, or a special format
file.
</li>
<li>
<strong>Pool</strong> - provides a means for taking a chunk
of storage and carving it up into volumes. A pool can be used to
manage things such as a physical disk, a NFS server, a iSCSI target,
a host adapter, an LVM group.
</li>
</ol>
<p>
These two concepts are mapped through to two libvirt objects, a
<code>virStorageVolPtr</code> and a <code>virStoragePoolPtr</code>,
each with a collection of APIs for their management.
</p>
</body>
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@ -1,16 +1,167 @@
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<div id="content">
<h1>Access control</h1>
<p>
When connecting to libvirt, some connections may require client
authentication before allowing use of the APIs. The set of possible
authentication mechanisms is administrator controlled, independent
of applications using libvirt.
</p><ul><li><a href="#ACL_server_config">Server configuration</a></li>
<li><a href="#ACL_server_unix_perms">UNIX socket permissions/group</a></li>
<li><a href="#ACL_server_polkit">UNIX socket PolicyKit auth</a></li>
<li><a href="#ACL_server_username">Username/password auth</a></li>
<li><a href="#ACL_server_kerberos">Kerberos auth</a></li>
</ul><h3 name="ACL_server_config">Server configuration</h3><p>
</p>
<ul>
<li>
<a href="#ACL_server_config">Server configuration</a>
</li>
<li>
<a href="#ACL_server_unix_perms">UNIX socket permissions/group</a>
</li>
<li>
<a href="#ACL_server_polkit">UNIX socket PolicyKit auth</a>
</li>
<li>
<a href="#ACL_server_username">Username/password auth</a>
</li>
<li>
<a href="#ACL_server_kerberos">Kerberos auth</a>
</li>
</ul>
<h3>
<a name="ACL_server_config" id="ACL_server_config">Server configuration</a>
</h3>
<p>
The libvirt daemon allows the administrator to choose the authentication
mechanisms used for client connections on each network socket independently.
This is primarily controlled via the libvirt daemon master config file in
@ -19,21 +170,30 @@ have its authentication mechanism configured independently. There is
currently a choice of <code>none</code>, <code>polkit</code>, and <code>sasl</code>.
The SASL scheme can be further configured to choose between a large
number of different mechanisms.
</p><h3 name="ACL_server_unix_perms">UNIX socket permissions/group</h3><p>
</p>
<h3>
<a name="ACL_server_unix_perms" id="ACL_server_unix_perms">UNIX socket permissions/group</a>
</h3>
<p>
If libvirt does not contain support for PolicyKit, then access control for
the UNIX domain socket is done using traditional file user/group ownership
and permissions. There are 2 sockets, one for full read-write access, the
other for read-only access. The RW socket will be restricted (mode 0700) to
only allow the <code>root</code> user to connect. The read-only socket will
be open access (mode 0777) to allow any user to connect.
</p><p>
</p>
<p>
To allow non-root users greater access, the <code>libvirtd.conf</code> file
can be edited to change the permissions via the <code>unix_sock_rw_perms</code>,
config parameter and to set a user group via the <code>unix_sock_group</code>
parameter. For example, setting the former to mode <code>0770</code> and the
latter <code>wheel</code> would let any user in the wheel group connect to
the libvirt daemon.
</p><h3 name="ACL_server_polkit">UNIX socket PolicyKit auth</h3><p>
</p>
<h3>
<a name="ACL_server_polkit" id="ACL_server_polkit">UNIX socket PolicyKit auth</a>
</h3>
<p>
If libvirt contains support for PolicyKit, then access control options are
more advanced. The <code>unix_sock_auth</code> parameter will default to
<code>polkit</code>, and the file permissions will default to <code>0777</code>
@ -43,24 +203,35 @@ RW daemon socket will require any application running in the current desktop
session to authenticate using the user's password. This is akin to <code>sudo</code>
auth, but does not require that the client application ultimately run as root.
Default policy will still allow any application to connect to the RO socket.
</p><p>
</p>
<p>
The default policy can be overridden by the administrator using the PolicyKit
master configuration file in <code>/etc/PolicyKit/PolicyKit.conf</code>. The
<code>PolicyKit.conf(5)</code> manual page provides details on the syntax
available. The two libvirt daemon actions available are named <code>org.libvirt.unix.monitor</code>
for the RO socket, and <code>org.libvirt.unix.manage</code> for the RW socket.
</p><p>
</p>
<p>
As an example, to allow a user <code>fred</code>full access to the RW socket,
while requiring <code>joe</code> to authenticate with the admin password,
would require adding the following snippet to <code>PolicyKit.conf</code>.
</p><pre>
&lt;match action="org.libvirt.unix.manage" user="fred"&gt;
&lt;return result="yes"/&gt;
</p>
<pre>
&lt;match action="org.libvirt.unix.manage"&gt;
&lt;match user="fred"&gt;
&lt;return result="yes"/&gt;
&lt;/match&gt;
&lt;/match&gt;
&lt;match action="org.libvirt.unix.manage" user="joe"&gt;
&lt;return result="auth_admin"/&gt;
&lt;match action="org.libvirt.unix.manage"&gt;
&lt;match user="joe"&gt;
&lt;return result="auth_admin"/&gt;
&lt;/match&gt;
&lt;/match&gt;
</pre><h3 name="ACL_server_username">Username/password auth</h3><p>
</pre>
<h3>
<a name="ACL_server_username" id="ACL_server_username">Username/password auth</a>
</h3>
<p>
The plain TCP socket of the libvirt daemon defaults to using SASL for authentication.
The SASL mechanism configured by default is DIGEST-MD5, which provides a basic
username+password style authentication. It also provides for encryption of the data
@ -68,28 +239,38 @@ stream, so the security of the plain TCP socket is on a par with that of the TLS
socket. If desired the UNIX socket and TLS socket can also have SASL enabled by
setting the <code>auth_unix_ro</code>, <code>auth_unix_rw</code>, <code>auth_tls</code>
config params in <code>libvirt.conf</code>.
</p><p>
</p>
<p>
Out of the box, no user accounts are defined, so no clients will be able to authenticate
on the TCP socket. Adding users and setting their passwords is done with the <code>saslpasswd2</code>
command. When running this command it is important to tell it that the appname is <code>libvirt</code>.
As an example, to add a user <code>fred</code>, run
</p><pre>
</p>
<pre>
# saslpasswd2 -a libvirt fred
Password: xxxxxx
Again (for verification): xxxxxx
</pre><p>
</pre>
<p>
To see a list of all accounts the <code>sasldblistusers2</code> command can be used.
This command expects to be given the path to the libvirt user database, which is kept
in <code>/etc/libvirt/passwd.db</code>
</p><pre>
</p>
<pre>
# sasldblistusers2 -f /etc/libvirt/passwd.db
fred@t60wlan.home.berrange.com: userPassword
</pre><p>
</pre>
<p>
Finally, to disable a user's access, the <code>saslpasswd2</code> command can be used
again:
</p><pre>
</p>
<pre>
# saslpasswd2 -a libvirt -d fred
</pre><h3 name="ACL_server_kerberos">Kerberos auth</h3><p>
</pre>
<h3>
<a name="ACL_server_kerberos" id="ACL_server_kerberos">Kerberos auth</a>
</h3>
<p>
The plain TCP socket of the libvirt daemon defaults to using SASL for authentication.
The SASL mechanism configured by default is DIGEST-MD5, which provides a basic
username+password style authentication. To enable Kerberos single-sign-on instead,
@ -98,19 +279,22 @@ The <code>mech_list</code> parameter must first be changed to <code>gssapi</code
instead of the default <code>digest-md5</code>. If SASL is enabled on the UNIX
and/or TLS sockets, Kerberos will also be used for them. Like DIGEST-MD5, the Kerberos
mechanism provides data encryption of the session.
</p><p>
</p>
<p>
Some operating systems do not install the SASL kerberos plugin by default. It
may be necessary to install a sub-package such as <code>cyrus-sasl-gssapi</code>.
To check whether the Kerberos plugin is installed run the <code>pluginviewer</code>
program and verify that <code>gssapi</code> is listed,eg:
</p><pre>
</p>
<pre>
# pluginviewer
...snip...
Plugin "gssapiv2" [loaded], API version: 4
SASL mechanism: GSSAPI, best SSF: 56
security flags: NO_ANONYMOUS|NO_PLAINTEXT|NO_ACTIVE|PASS_CREDENTIALS|MUTUAL_AUTH
features: WANT_CLIENT_FIRST|PROXY_AUTHENTICATION|NEED_SERVER_FQDN
</pre><p>
</pre>
<p>
Next is is necessary for the administrator of the Kerberos realm to issue a principle
for the libvirt server. There needs to be one principle per host running the libvirt
daemon. The principle should be named <code>libvirt/full.hostname@KERBEROS.REALM</code>.
@ -118,7 +302,8 @@ This is typically done by running the <code>kadmin.local</code> command on the K
server, though some Kerberos servers have alternate ways of setting up service principles.
Once created, the principle should be exported to a keytab, copied to the host running
the libvirt daemon and placed in <code>/etc/libvirt/krb5.tab</code>
</p><pre>
</p>
<pre>
# kadmin.local
kadmin.local: add_principal libvirt/foo.example.com
Enter password for principal "libvirt/foo.example.com@EXAMPLE.COM":
@ -135,9 +320,18 @@ kadmin.local: quit
# scp /root/libvirt-foo-example.tab root@foo.example.com:/etc/libvirt/krb5.tab
# rm /root/libvirt-foo-example.tab
</pre><p>
</pre>
<p>
Any client application wishing to connect to a Kerberos enabled libvirt server
merely needs to run <code>kinit</code> to gain a user principle. This may well
be done automatically when a user logs into a desktop session, if PAM is setup
to authenticate against Kerberos.
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@ -0,0 +1,187 @@
<html>
<body>
<h1 >Access control</h1>
<p>
When connecting to libvirt, some connections may require client
authentication before allowing use of the APIs. The set of possible
authentication mechanisms is administrator controlled, independent
of applications using libvirt.
</p>
<ul>
<li>
<a href="#ACL_server_config">Server configuration</a>
</li>
<li>
<a href="#ACL_server_unix_perms">UNIX socket permissions/group</a>
</li>
<li>
<a href="#ACL_server_polkit">UNIX socket PolicyKit auth</a>
</li>
<li>
<a href="#ACL_server_username">Username/password auth</a>
</li>
<li>
<a href="#ACL_server_kerberos">Kerberos auth</a>
</li>
</ul>
<h3><a name="ACL_server_config">Server configuration</a></h3>
<p>
The libvirt daemon allows the administrator to choose the authentication
mechanisms used for client connections on each network socket independently.
This is primarily controlled via the libvirt daemon master config file in
<code>/etc/libvirt/libvirtd.conf</code>. Each of the libvirt sockets can
have its authentication mechanism configured independently. There is
currently a choice of <code>none</code>, <code>polkit</code>, and <code>sasl</code>.
The SASL scheme can be further configured to choose between a large
number of different mechanisms.
</p>
<h3><a name="ACL_server_unix_perms">UNIX socket permissions/group</a></h3>
<p>
If libvirt does not contain support for PolicyKit, then access control for
the UNIX domain socket is done using traditional file user/group ownership
and permissions. There are 2 sockets, one for full read-write access, the
other for read-only access. The RW socket will be restricted (mode 0700) to
only allow the <code>root</code> user to connect. The read-only socket will
be open access (mode 0777) to allow any user to connect.
</p>
<p>
To allow non-root users greater access, the <code>libvirtd.conf</code> file
can be edited to change the permissions via the <code>unix_sock_rw_perms</code>,
config parameter and to set a user group via the <code>unix_sock_group</code>
parameter. For example, setting the former to mode <code>0770</code> and the
latter <code>wheel</code> would let any user in the wheel group connect to
the libvirt daemon.
</p>
<h3><a name="ACL_server_polkit">UNIX socket PolicyKit auth</a></h3>
<p>
If libvirt contains support for PolicyKit, then access control options are
more advanced. The <code>unix_sock_auth</code> parameter will default to
<code>polkit</code>, and the file permissions will default to <code>0777</code>
even on the RW socket. Upon connecting to the socket, the client application
will be required to identify itself with PolicyKit. The default policy for the
RW daemon socket will require any application running in the current desktop
session to authenticate using the user's password. This is akin to <code>sudo</code>
auth, but does not require that the client application ultimately run as root.
Default policy will still allow any application to connect to the RO socket.
</p>
<p>
The default policy can be overridden by the administrator using the PolicyKit
master configuration file in <code>/etc/PolicyKit/PolicyKit.conf</code>. The
<code>PolicyKit.conf(5)</code> manual page provides details on the syntax
available. The two libvirt daemon actions available are named <code>org.libvirt.unix.monitor</code>
for the RO socket, and <code>org.libvirt.unix.manage</code> for the RW socket.
</p>
<p>
As an example, to allow a user <code>fred</code>full access to the RW socket,
while requiring <code>joe</code> to authenticate with the admin password,
would require adding the following snippet to <code>PolicyKit.conf</code>.
</p>
<pre>
&lt;match action="org.libvirt.unix.manage"&gt;
&lt;match user="fred"&gt;
&lt;return result="yes"/&gt;
&lt;/match&gt;
&lt;/match&gt;
&lt;match action="org.libvirt.unix.manage"&gt;
&lt;match user="joe"&gt;
&lt;return result="auth_admin"/&gt;
&lt;/match&gt;
&lt;/match&gt;
</pre>
<h3><a name="ACL_server_username">Username/password auth</a></h3>
<p>
The plain TCP socket of the libvirt daemon defaults to using SASL for authentication.
The SASL mechanism configured by default is DIGEST-MD5, which provides a basic
username+password style authentication. It also provides for encryption of the data
stream, so the security of the plain TCP socket is on a par with that of the TLS
socket. If desired the UNIX socket and TLS socket can also have SASL enabled by
setting the <code>auth_unix_ro</code>, <code>auth_unix_rw</code>, <code>auth_tls</code>
config params in <code>libvirt.conf</code>.
</p>
<p>
Out of the box, no user accounts are defined, so no clients will be able to authenticate
on the TCP socket. Adding users and setting their passwords is done with the <code>saslpasswd2</code>
command. When running this command it is important to tell it that the appname is <code>libvirt</code>.
As an example, to add a user <code>fred</code>, run
</p>
<pre>
# saslpasswd2 -a libvirt fred
Password: xxxxxx
Again (for verification): xxxxxx
</pre>
<p>
To see a list of all accounts the <code>sasldblistusers2</code> command can be used.
This command expects to be given the path to the libvirt user database, which is kept
in <code>/etc/libvirt/passwd.db</code>
</p>
<pre>
# sasldblistusers2 -f /etc/libvirt/passwd.db
fred@t60wlan.home.berrange.com: userPassword
</pre>
<p>
Finally, to disable a user's access, the <code>saslpasswd2</code> command can be used
again:
</p>
<pre>
# saslpasswd2 -a libvirt -d fred
</pre>
<h3><a name="ACL_server_kerberos">Kerberos auth</a></h3>
<p>
The plain TCP socket of the libvirt daemon defaults to using SASL for authentication.
The SASL mechanism configured by default is DIGEST-MD5, which provides a basic
username+password style authentication. To enable Kerberos single-sign-on instead,
the libvirt SASL configuration file must be changed. This is <code>/etc/sasl2/libvirt.conf</code>.
The <code>mech_list</code> parameter must first be changed to <code>gssapi</code>
instead of the default <code>digest-md5</code>. If SASL is enabled on the UNIX
and/or TLS sockets, Kerberos will also be used for them. Like DIGEST-MD5, the Kerberos
mechanism provides data encryption of the session.
</p>
<p>
Some operating systems do not install the SASL kerberos plugin by default. It
may be necessary to install a sub-package such as <code>cyrus-sasl-gssapi</code>.
To check whether the Kerberos plugin is installed run the <code>pluginviewer</code>
program and verify that <code>gssapi</code> is listed,eg:
</p>
<pre>
# pluginviewer
...snip...
Plugin "gssapiv2" [loaded], API version: 4
SASL mechanism: GSSAPI, best SSF: 56
security flags: NO_ANONYMOUS|NO_PLAINTEXT|NO_ACTIVE|PASS_CREDENTIALS|MUTUAL_AUTH
features: WANT_CLIENT_FIRST|PROXY_AUTHENTICATION|NEED_SERVER_FQDN
</pre>
<p>
Next is is necessary for the administrator of the Kerberos realm to issue a principle
for the libvirt server. There needs to be one principle per host running the libvirt
daemon. The principle should be named <code>libvirt/full.hostname@KERBEROS.REALM</code>.
This is typically done by running the <code>kadmin.local</code> command on the Kerberos
server, though some Kerberos servers have alternate ways of setting up service principles.
Once created, the principle should be exported to a keytab, copied to the host running
the libvirt daemon and placed in <code>/etc/libvirt/krb5.tab</code>
</p>
<pre>
# kadmin.local
kadmin.local: add_principal libvirt/foo.example.com
Enter password for principal "libvirt/foo.example.com@EXAMPLE.COM":
Re-enter password for principal "libvirt/foo.example.com@EXAMPLE.COM":
Principal "libvirt/foo.example.com@EXAMPLE.COM" created.
kadmin.local: ktadd -k /root/libvirt-foo-example.tab libvirt/foo.example.com@EXAMPLE.COM
Entry for principal libvirt/foo.example.com@EXAMPLE.COM with kvno 4, encryption type Triple DES cbc mode with HMAC/sha1 added to keytab WRFILE:/root/libvirt-foo-example.tab.
Entry for principal libvirt/foo.example.com@EXAMPLE.COM with kvno 4, encryption type ArcFour with HMAC/md5 added to keytab WRFILE:/root/libvirt-foo-example.tab.
Entry for principal libvirt/foo.example.com@EXAMPLE.COM with kvno 4, encryption type DES with HMAC/sha1 added to keytab WRFILE:/root/libvirt-foo-example.tab.
Entry for principal libvirt/foo.example.com@EXAMPLE.COM with kvno 4, encryption type DES cbc mode with RSA-MD5 added to keytab WRFILE:/root/libvirt-foo-example.tab.
kadmin.local: quit
# scp /root/libvirt-foo-example.tab root@foo.example.com:/etc/libvirt/krb5.tab
# rm /root/libvirt-foo-example.tab
</pre>
<p>
Any client application wishing to connect to a Kerberos enabled libvirt server
merely needs to run <code>kinit</code> to gain a user principle. This may well
be done automatically when a user logs into a desktop session, if PAM is setup
to authenticate against Kerberos.
</p>
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<h1>Bindings for other languages</h1>
<p>Libvirt comes with bindings to support other languages than
pure C. First the headers embeds the necessary declarations to
allow direct acces from C++ code, but also we have bindings for
higher level kind of languages:</p>
<ul>
<li>Python: Libvirt comes with direct support for the Python language
(just make sure you installed the libvirt-python package if not
compiling from sources). See below for more information about
using libvirt with python</li>
<li>Perl: Daniel Berrange provides <a href="http://search.cpan.org/dist/Sys-Virt/">bindings for
Perl</a>.</li>
<li>OCaml: Richard Jones supplies <a href="http://libvirt.org/ocaml/">bindings for OCaml</a>.</li>
<li>Ruby: David Lutterkort provides <a href="http://libvirt.org/ruby/">bindings for Ruby</a>.</li>
</ul>
<p>Support, requests or help for libvirt bindings are welcome on
the <a href="https://www.redhat.com/mailman/listinfo/libvir-list/">mailing
list</a>, as usual try to provide enough background information
and make sure you use recent version, see the <a href="bugs.html">help
page</a>.</p>
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<body>
<h1 >Bindings for other languages</h1>
<p>Libvirt comes with bindings to support other languages than
pure C. First the headers embeds the necessary declarations to
allow direct acces from C++ code, but also we have bindings for
higher level kind of languages:</p>
<ul>
<li>Python: Libvirt comes with direct support for the Python language
(just make sure you installed the libvirt-python package if not
compiling from sources). See below for more information about
using libvirt with python</li>
<li>Perl: Daniel Berrange provides <a href="http://search.cpan.org/dist/Sys-Virt/">bindings for
Perl</a>.</li>
<li>OCaml: Richard Jones supplies <a href="http://libvirt.org/ocaml/">bindings for OCaml</a>.</li>
<li>Ruby: David Lutterkort provides <a href="http://libvirt.org/ruby/">bindings for Ruby</a>.</li>
</ul>
<p>Support, requests or help for libvirt bindings are welcome on
the <a href="https://www.redhat.com/mailman/listinfo/libvir-list/">mailing
list</a>, as usual try to provide enough background information
and make sure you use recent version, see the <a href="bugs.html">help
page</a>.</p>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Reporting bugs and getting help</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Reporting bugs and getting help</h1><p>There is a mailing-list <a href="mailto:libvir-list@redhat.com">libvir-list@redhat.com</a> for libvirt,
with an <a href="https://www.redhat.com/archives/libvir-list/">on-line
archive</a>. Please subscribe to this list before posting by visiting the <a href="https://www.redhat.com/mailman/listinfo/libvir-list">associated Web</a>
page and follow the instructions. Patches with explanations and provided as
attachments are really appreciated and will be discussed on the mailing list.
If possible generate the patches by using cvs diff -u in a CVS checkout.</p><p>We use Red Hat Bugzilla to track bugs and new feature requests to libvirt.
If you want to report a bug or ask for a feature, please check <a href="http://bugzilla.redhat.com/bugzilla/buglist.cgi?component=libvirt&amp;component=libvirt-devel&amp;component=libvirt-python&amp;bug_status=ASSIGNED&amp;bug_status=INVESTIGATE&amp;bug_status=NEW&amp;bug_status=REOPENED&amp;bug_status=VERIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr&amp;long_desc=&amp;Search=Search">the existing open bugs</a>, then if yours isn't a duplicate of
an existing bug:</p><ul><li>If you are using official binaries from Fedora: <a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=libvirt">log a new bug for Fedora</a></li>
<li>If you are using official binaries from Red Hat Enterprise Linux 5: <a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=Red%20Hat%20Enterprise%20Linux%205">log a new bug for RHEL</a></li>
<li>Otherwise: <a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=Virtualization%20Tools">log a new bug here</a></li>
</ul><p> Don't forget to attach any patch or extra data that you may have available. It is always a good idea to also
to post to the <a href="mailto:libvir-list@redhat.com">mailing-list</a>
too, so that everybody working on the project can see it, thanks !</p><p>Some of the libvirt developers may be found on IRC on the OFTC
network. Use the settings:</p><ul><li>server: irc.oftc.net</li>
<li>port: 6667 (the usual IRC port)</li>
<li>channel: #virt</li>
</ul><p> But there is no guarantee that someone will be watching or able to reply,
use the mailing-list if you don't get an answer there.</p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
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<h1>Bug reporting</h1>
<p>
The <a href="http://bugzilla.redhat.com">Red Hat Bugzilla Server</a>
should be used to report bugs and request features against libvirt.
Before submitting a ticket, check the existing tickets to see if
the bug/feature is already tracked.
</p>
<h2>General libvirt bug reports</h2>
<p>
If you are using official libvirt binaries from a Linux distribution
check below for distribution specific bug reporting policies first.
For general libvirt bug reports, from self-built releases, CVS snapshots
and any other non-distribution supported builds, enter tickets under
the <code>Virtualization Tools</code> product and the <code>libvirt</code>
component.
</p>
<ul>
<li>
<a href="">View libvirt tickets</a>
</li>
<li>
<a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Virtualization%20Tools&amp;component=libvirt">New libvirt ticket</a>
</li>
</ul>
<h2>Linux Distribution specific bug reports</h2>
<ul>
<li>
If you are using official binaries from a <strong>Fedora distribution</strong>, enter
tickets against the <code>Fedora</code> product and the <code>libvirt</code>
component.
<ul><li><a href="">View Fedora libvirt tickets</a></li><li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=libvirt">New Fedora libvirt ticket</a></li></ul></li>
<li>
If you are using official binaries from <strong>Red Hat Enterprise Linux distribution</strong>,
tickets against the <code>Red Hat Enterprise Linux 5</code> product and
the <code>libvirt</code> component.
<ul><li><a href="">View Red Hat Enterprise Linux libvirt tickets</a></li><li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%205&amp;component=libvirt">New Red Hat Enterprise Linux libvirt ticket</a></li></ul></li>
<li>
If you are using official binaries from another Linux distribution first
follow their own bug reporting guidelines.
</li>
</ul>
<h2>How to file high quality bug reports</h2>
<p>
To increase the likelihood of your bug report being addressed it is
important to provide as much information as possible. When filing
libvirt bugs use this checklist to see if you are providing enough
information:
</p>
<ul>
<li>The version number of the libvirt build, or date of the CVS
checkout</li>
<li>The hardware architecture being used</li>
<li>The name of the hypervisor (Xen, QEMU, KVM)</li>
<li>The XML config of the guest domain if relevant</li>
<li>For Xen hypervisor, the XenD logfile from /var/log/xen</li>
<li>For QEMU/KVM, the domain logfile from /var/log/libvirt/qemu</li>
</ul>
<p>
If requesting a new feature attach any available patch to the ticket
and also email the patch to the libvirt mailing list for discussion
</p>
</div>
</div>
<div id="footer">
<p id="sponsor">
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
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<?xml version="1.0"?>
<html>
<body>
<h1>Bug reporting</h1>
<p>
The <a href="http://bugzilla.redhat.com">Red Hat Bugzilla Server</a>
should be used to report bugs and request features against libvirt.
Before submitting a ticket, check the existing tickets to see if
the bug/feature is already tracked.
</p>
<h2>General libvirt bug reports</h2>
<p>
If you are using official libvirt binaries from a Linux distribution
check below for distribution specific bug reporting policies first.
For general libvirt bug reports, from self-built releases, CVS snapshots
and any other non-distribution supported builds, enter tickets under
the <code>Virtualization Tools</code> product and the <code>libvirt</code>
component.
</p>
<ul>
<li><a href="">View libvirt tickets</a></li>
<li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Virtualization%20Tools&amp;component=libvirt">New libvirt ticket</a></li>
</ul>
<h2>Linux Distribution specific bug reports</h2>
<ul>
<li>
If you are using official binaries from a <strong>Fedora distribution</strong>, enter
tickets against the <code>Fedora</code> product and the <code>libvirt</code>
component.
<ul>
<li><a href="">View Fedora libvirt tickets</a></li>
<li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=libvirt">New Fedora libvirt ticket</a></li>
</ul>
</li>
<li>
If you are using official binaries from <strong>Red Hat Enterprise Linux distribution</strong>,
tickets against the <code>Red Hat Enterprise Linux 5</code> product and
the <code>libvirt</code> component.
<ul>
<li><a href="">View Red Hat Enterprise Linux libvirt tickets</a></li>
<li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%205&amp;component=libvirt">New Red Hat Enterprise Linux libvirt ticket</a></li>
</ul>
</li>
<li>
If you are using official binaries from another Linux distribution first
follow their own bug reporting guidelines.
</li>
</ul>
<h2>How to file high quality bug reports</h2>
<p>
To increase the likelihood of your bug report being addressed it is
important to provide as much information as possible. When filing
libvirt bugs use this checklist to see if you are providing enough
information:
</p>
<ul>
<li>The version number of the libvirt build, or date of the CVS
checkout</li>
<li>The hardware architecture being used</li>
<li>The name of the hypervisor (Xen, QEMU, KVM)</li>
<li>The XML config of the guest domain if relevant</li>
<li>For Xen hypervisor, the XenD logfile from /var/log/xen</li>
<li>For QEMU/KVM, the domain logfile from /var/log/libvirt/qemu</li>
</ul>
<p>
If requesting a new feature attach any available patch to the ticket
and also email the patch to the libvirt mailing list for discussion
</p>
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<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
<div>
<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</div>
</form>
</div>
</div>
<div id="body">
<div id="menu">
<ul class="l0">
<li>
<div>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</div>
</li>
<li>
<div>
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
</div>
</li>
<li>
<div>
<a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="downloads.html">Downloads</a>
</div>
</li>
<li>
<div>
<a title="Information for users, administrators and developers" class="inactive" href="docs.html">Documentation</a>
</div>
</li>
<li>
<div>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</div>
</li>
<li>
<div>
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
</div>
</li>
<li>
<div>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</div>
</li>
<li>
<div>
<span class="active">Contact</span>
</div>
</li>
<li>
<div>
<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
</div>
</li>
<li>
<div>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</div>
</li>
</ul>
</div>
<div id="content">
<h1>Contacting the development team</h1>
<h2>Mailing list</h2>
<p>
There is a mailing-list <a href="mailto:libvir-list@redhat.com">libvir-list@redhat.com</a> for libvirt,
with an <a href="https://www.redhat.com/archives/libvir-list/">on-line archive</a>.
Please subscribe to this list before posting by visiting the
<a href="https://www.redhat.com/mailman/listinfo/libvir-list">associated Web</a>
page and follow the instructions. Patches with explanations and provided as
attachments are really appreciated and will be discussed on the mailing list.
If possible generate the patches by using <code>cvs diff -up</code> in a CVS
checkout.
</p>
<h2>IRC discussion</h2>
<p>
Some of the libvirt developers may be found on IRC on the <a href="http://oftc.net">OFTC IRC</a>
network. Use the settings:
</p>
<ul>
<li>server: irc.oftc.net</li>
<li>port: 6667 (the usual IRC port)</li>
<li>channel: #virt</li>
</ul>
<p>
NB There is no guarantee that someone will be watching or able to reply
promptly, so use the mailing-list if you don't get an answer on the IRC
channel.
</p>
</div>
</div>
<div id="footer">
<p id="sponsor">
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
</div>
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37
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@ -0,0 +1,37 @@
<?xml version="1.0"?>
<html>
<body>
<h1>Contacting the development team</h1>
<h2>Mailing list</h2>
<p>
There is a mailing-list <a href="mailto:libvir-list@redhat.com">libvir-list@redhat.com</a> for libvirt,
with an <a href="https://www.redhat.com/archives/libvir-list/">on-line archive</a>.
Please subscribe to this list before posting by visiting the
<a href="https://www.redhat.com/mailman/listinfo/libvir-list">associated Web</a>
page and follow the instructions. Patches with explanations and provided as
attachments are really appreciated and will be discussed on the mailing list.
If possible generate the patches by using <code>cvs diff -up</code> in a CVS
checkout.
</p>
<h2>IRC discussion</h2>
<p>
Some of the libvirt developers may be found on IRC on the <a href="http://oftc.net">OFTC IRC</a>
network. Use the settings:
</p>
<ul>
<li>server: irc.oftc.net</li>
<li>port: 6667 (the usual IRC port)</li>
<li>channel: #virt</li>
</ul>
<p>
NB There is no guarantee that someone will be watching or able to reply
promptly, so use the mailing-list if you don't get an answer on the IRC
channel.
</p>
</body>
</html>

177
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@ -0,0 +1,177 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<!--
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Do not edit this file. Changes will be lost.
-->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<link rel="stylesheet" type="text/css" href="main.css" />
<link rel="SHORTCUT ICON" href="32favicon.png" />
<title>libvirt: Deployment</title>
<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
<div id="header">
<div id="headerLogo"></div>
<div id="headerSearch">
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
<div>
<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</div>
</form>
</div>
</div>
<div id="body">
<div id="menu">
<ul class="l0">
<li>
<div>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</div>
</li>
<li>
<div>
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
</div>
</li>
<li>
<div>
<a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="downloads.html">Downloads</a>
</div>
</li>
<li>
<div>
<a title="Information for users, administrators and developers" class="active" href="docs.html">Documentation</a>
<ul class="l1">
<li>
<div>
<span class="active">Deployment</span>
<ul class="l2">
<li>
<div>
<a title="The URI formats used for connecting to libvirt" class="inactive" href="uri.html">URI format</a>
</div>
</li>
<li>
<div>
<a title="Enable remote access over TCP" class="inactive" href="remote.html">Remote access</a>
</div>
</li>
<li>
<div>
<a title="Configure authentication for the libvirt daemon" class="inactive" href="auth.html">Authentication</a>
</div>
</li>
<li>
<div>
<a title="Access the libvirt daemon from a native Windows client" class="inactive" href="windows.html">Windows port</a>
</div>
</li>
</ul>
</div>
</li>
<li>
<div>
<a title="Overview of the logical subsystems in the libvirt API" class="inactive" href="intro.html">Architecture</a>
</div>
</li>
<li>
<div>
<a title="Description of the XML formats used in libvirt" class="inactive" href="format.html">XML format</a>
</div>
</li>
<li>
<div>
<a title="Hypervisor specific driver information" class="inactive" href="drivers.html">Drivers</a>
</div>
</li>
<li>
<div>
<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
</div>
</li>
<li>
<div>
<a title="Bindings of the libvirt API for other languages" class="inactive" href="bindings.html">Language bindings</a>
</div>
</li>
</ul>
</div>
</li>
<li>
<div>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</div>
</li>
<li>
<div>
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
</div>
</li>
<li>
<div>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</div>
</li>
<li>
<div>
<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
</div>
</li>
<li>
<div>
<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
</div>
</li>
<li>
<div>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</div>
</li>
</ul>
</div>
<div id="content">
<h1>Deployment</h1>
<h2>Pre-packaged releases</h2>
<p>
The libvirt API is now available in all major Linux distributions
so the simplest deployment approach is to use your distributions'
package management software to install the <code>libvirt</code>
module.
</p>
<h2>Self-built releases</h2>
<p>
libvirt uses GNU autotools for its build system, so deployment
follows the usual process of <code>configure; make ; make install</code>
</p>
<pre>
# ./configure --prefix=$HOME/usr
# make
# make install
</pre>
<h2>Built from CVS / GIT</h2>
<p>
When building from CVS it is necessary to generate the autotools
support files. This requires having <code>autoconf</code>,
<code>automake</code>, <code>libtool</code> and <code>intltool</code>
installed. The process can be automated with the <code>autogen.sh</code>
script.
</p>
<pre>
# ./autogen.sh --prefix=$HOME/usr
# make
# make install
</pre>
</div>
</div>
<div id="footer">
<p id="sponsor">
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
</div>
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</html>

46
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@ -0,0 +1,46 @@
<html>
<body>
<h1>Deployment</h1>
<h2>Pre-packaged releases</h2>
<p>
The libvirt API is now available in all major Linux distributions
so the simplest deployment approach is to use your distributions'
package management software to install the <code>libvirt</code>
module.
</p>
<h2>Self-built releases</h2>
<p>
libvirt uses GNU autotools for its build system, so deployment
follows the usual process of <code>configure; make ; make install</code>
</p>
<pre>
# ./configure --prefix=$HOME/usr
# make
# make install
</pre>
<h2>Built from CVS / GIT</h2>
<p>
When building from CVS it is necessary to generate the autotools
support files. This requires having <code>autoconf</code>,
<code>automake</code>, <code>libtool</code> and <code>intltool</code>
installed. The process can be automated with the <code>autogen.sh</code>
script.
</p>
<pre>
# ./autogen.sh --prefix=$HOME/usr
# make
# make install
</pre>
</body>
</html>

View File

@ -67,14 +67,14 @@ void <a href="#virConnResetLastError">virConnResetLastError</a> (<a href="libvi
int domain : What part of the library raised this error
char * message : human-readable informative error message
<a href="libvirt-virterror.html#virErrorLevel">virErrorLevel</a> level : how consequent is the error
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn : the connection if available
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom : the domain if available
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn : connection if available, see note above
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom : domain if available, see note above
char * str1 : extra string information
char * str2 : extra string information
char * str3 : extra string information
int int1 : extra number information
int int2 : extra number information
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net : the network if available
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net : network if available, see note above
} virError;
</pre><p/>
</div>

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<?xml version="1.0" encoding="ISO-8859-1"?>
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<ul class="l1">
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</div>
</li>
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<div>
<a title="Description of the XML formats used in libvirt" class="inactive" href="format.html">XML format</a>
</div>
</li>
<li>
<div>
<a title="Hypervisor specific driver information" class="inactive" href="drivers.html">Drivers</a>
</div>
</li>
<li>
<div>
<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
</div>
</li>
<li>
<div>
<a title="Bindings of the libvirt API for other languages" class="inactive" href="bindings.html">Language bindings</a>
</div>
</li>
</ul>
</div>
</li>
<li>
<div>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</div>
</li>
<li>
<div>
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
</div>
</li>
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<body>
<h1>Documentation</h1>
</body>
</html>

View File

@ -1,10 +1,162 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Downloads</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Downloads</h1><p>The latest versions of libvirt can be found on the <a href="ftp://libvirt.org/libvirt/">libvirt.org</a> server ( <a href="http://libvirt.org/sources/">HTTP</a>, <a href="ftp://libvirt.org/libvirt/">FTP</a>). You will find there the released
versions as well as <a href="http://libvirt.org/sources/libvirt-cvs-snapshot.tar.gz">snapshot
tarballs</a> updated from CVS head every hour</p><p>Anonymous <a href="http://ximbiot.com/cvs/cvshome/docs/">CVS</a> is also
available, first register onto the server:</p><p><code>cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs login</code></p><p>it will request a password, enter <strong>anoncvs</strong>. Then you can
checkout the development tree with:</p><p><code>cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs co
libvirt</code></p><p>Use ./autogen.sh to configure the local checkout, then <code>make</code>
and <code>make install</code>, as usual. All normal cvs commands are now
available except commiting to the base.</p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<span class="active">Downloads</span>
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</div>
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</div>
</li>
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<div>
<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
</div>
</li>
<li>
<div>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</div>
</li>
</ul>
</div>
<div id="content">
<h1>Downloads</h1>
<h2>Official Releases</h2>
<p>
The latest versions of the libvirt C library can be downloaded from:
</p>
<ul>
<li>
<a href="ftp://libvirt.org/libvirt/">libvirt.org FTP server</a>
</li>
<li>
<a href="http://libvirt.org/sources/">libvirt.org HTTP server</a>
</li>
</ul>
<h2>Hourly development snapshots</h2>
<p>
Once an hour, an automated snapshot is made from the latest CVS server
source tree. These snapshots should be usable, but we make no guarantees
about their stability:
</p>
<ul>
<li>
<a href="ftp://libvirt.org/libvirt/libvirt-cvs-snapshot.tar.gz">libvirt.org FTP server</a>
</li>
<li>
<a href="http://libvirt.org/sources/libvirt-cvs-snapshot.tar.gz">libvirt.org HTTP server</a>
</li>
</ul>
<h2>CVS repository access</h2>
<p>
The master source repository uses <a href="http://ximbiot.com/cvs/cvshome/docs/">CVS</a>
and anonymous access is provided. Prior to accessing the server is it necessary
to authenticate using the password <code>anoncvs</code>. This can be accomplished with the
<code>cvs login</code> command:
</p>
<pre>
# cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs login
</pre>
<p>
Once authenticated, a checkout can be obtained using
</p>
<pre>
# cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs co libvirt
</pre>
<p>
The libvirt build process uses GNU autotools, so after obtaining a checkout
it is necessary to generate the configure script and Makefile.in templates
using the <code>autogen.sh</code> command. As an example, to do a complete
build and install it into your home directory run:
</p>
<pre>
./autogen.sh --prefix=$HOME/usr
make
make install
</pre>
<h2>GIT repository mirror</h2>
<p>
The CVS source repository is also mirrored using GIT, and is available
for anonymous access via:
</p>
<pre>
git clone git://git.et.redhat.com/libvirt.git
</pre>
<p>
It can also be browsed at
</p>
<pre>
<a href="http://git.et.redhat.com/?p=libvirt.git;a=summary">http://git.et.redhat.com/?p=libvirt.git;a=summary</a>
</pre>
</div>
</div>
<div id="footer">
<p id="sponsor">
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89
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<?xml version="1.0"?>
<html>
<body>
<h1 >Downloads</h1>
<h2>Official Releases</h2>
<p>
The latest versions of the libvirt C library can be downloaded from:
</p>
<ul>
<li><a href="ftp://libvirt.org/libvirt/">libvirt.org FTP server</a></li>
<li><a href="http://libvirt.org/sources/">libvirt.org HTTP server</a></li>
</ul>
<h2>Hourly development snapshots</h2>
<p>
Once an hour, an automated snapshot is made from the latest CVS server
source tree. These snapshots should be usable, but we make no guarantees
about their stability:
</p>
<ul>
<li><a href="ftp://libvirt.org/libvirt/libvirt-cvs-snapshot.tar.gz">libvirt.org FTP server</a></li>
<li><a href="http://libvirt.org/sources/libvirt-cvs-snapshot.tar.gz">libvirt.org HTTP server</a></li>
</ul>
<h2>CVS repository access</h2>
<p>
The master source repository uses <a href="http://ximbiot.com/cvs/cvshome/docs/">CVS</a>
and anonymous access is provided. Prior to accessing the server is it necessary
to authenticate using the password <code>anoncvs</code>. This can be accomplished with the
<code>cvs login</code> command:
</p>
<pre>
# cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs login
</pre>
<p>
Once authenticated, a checkout can be obtained using
</p>
<pre>
# cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs co libvirt
</pre>
<p>
The libvirt build process uses GNU autotools, so after obtaining a checkout
it is necessary to generate the configure script and Makefile.in templates
using the <code>autogen.sh</code> command. As an example, to do a complete
build and install it into your home directory run:
</p>
<pre>
./autogen.sh --prefix=$HOME/usr
make
make install
</pre>
<h2>GIT repository mirror</h2>
<p>
The CVS source repository is also mirrored using GIT, and is available
for anonymous access via:
</p>
<pre>
git clone git://git.et.redhat.com/libvirt.git
</pre>
<p>
It can also be browsed at
</p>
<pre>
<a href="http://git.et.redhat.com/?p=libvirt.git;a=summary">http://git.et.redhat.com/?p=libvirt.git;a=summary</a>
</pre>
</body>
</html>

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<?xml version="1.0" encoding="ISO-8859-1"?>
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</div>
</li>
<li>
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</div>
</li>
<li>
<div>
<span class="active">Drivers</span>
<ul class="l2">
<li>
<div>
<a title="Driver the Xen hypervisor" class="inactive" href="drvxen.html">Xen</a>
</div>
</li>
<li>
<div>
<a title="Driver for QEMU, KQEMU, KVM and Xenner" class="inactive" href="drvqemu.html">QEMU / KVM</a>
</div>
</li>
<li>
<div>
<a title="Driver for the Linux native container API" class="inactive" href="drvlxc.html">Linux Container</a>
</div>
</li>
<li>
<div>
<a title="Psuedo-driver simulating APIs in memory for test suites" class="inactive" href="drvtest.html">Test</a>
</div>
</li>
<li>
<div>
<a title="Driver providing secure remote to the libvirt APIs" class="inactive" href="drvremote.html">Remote</a>
</div>
</li>
<li>
<div>
<a title="Driver for the OpenVZ container technology" class="inactive" href="drvopenvz.html">OpenVZ</a>
</div>
</li>
<li>
<div>
<a title="Driver for the storage management APIs" class="inactive" href="storage.html">Storage</a>
</div>
</li>
</ul>
</div>
</li>
<li>
<div>
<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
</div>
</li>
<li>
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</div>
</li>
</ul>
</div>
</li>
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<div>
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</div>
</li>
</ul>
</div>
<div id="content">
<h1>Internal drivers</h1>
<p>
The libvirt public API delegates its implementation to one or
more internal drivers, depending on the <a href="uri.html">connection URI</a>
passed when initializing the library. There is always a hypervisor driver
active, and if the libvirt daemon is available there will usually be a
network and storage driver active.
</p>
<h2>Hypervisor drivers</h2>
<p>
The hypervisor drivers currently supported by libvirt are:
</p>
<ul>
<li>
<strong>
<a href="drvxen.html">Xen</a>
</strong>
</li>
<li>
<strong>
<a href="drvqemu.html">QEMU</a>
</strong>
</li>
<li>
<strong>
<a href="drvlxc.html">LXC</a>
</strong>
</li>
<li>
<strong>
<a href="drvtest.html">Test</a>
</strong>
</li>
<li>
<strong>
<a href="drvopenvz.html">OpenVZ</a>
</strong>
</li>
</ul>
</div>
</div>
<div id="footer">
<p id="sponsor">
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<html>
<body>
<h1>Internal drivers</h1>
<p>
The libvirt public API delegates its implementation to one or
more internal drivers, depending on the <a href="uri.html">connection URI</a>
passed when initializing the library. There is always a hypervisor driver
active, and if the libvirt daemon is available there will usually be a
network and storage driver active.
</p>
<h2>Hypervisor drivers</h2>
<p>
The hypervisor drivers currently supported by libvirt are:
</p>
<ul>
<li><strong><a href="drvxen.html">Xen</a></strong></li>
<li><strong><a href="drvqemu.html">QEMU</a></strong></li>
<li><strong><a href="drvlxc.html">LXC</a></strong></li>
<li><strong><a href="drvtest.html">Test</a></strong></li>
<li><strong><a href="drvopenvz.html">OpenVZ</a></strong></li>
</ul>
</body>
</html>

160
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Do not edit this file. Changes will be lost.
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</li>
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<li>
<div>
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</div>
</li>
<li>
<div>
<a title="Information for users, administrators and developers" class="active" href="docs.html">Documentation</a>
<ul class="l1">
<li>
<div>
<a title="Information about deploying and using libvirt" class="inactive" href="deployment.html">Deployment</a>
</div>
</li>
<li>
<div>
<a title="Overview of the logical subsystems in the libvirt API" class="inactive" href="intro.html">Architecture</a>
</div>
</li>
<li>
<div>
<a title="Description of the XML formats used in libvirt" class="inactive" href="format.html">XML format</a>
</div>
</li>
<li>
<div>
<a title="Hypervisor specific driver information" class="active" href="drivers.html">Drivers</a>
<ul class="l2">
<li>
<div>
<a title="Driver the Xen hypervisor" class="inactive" href="drvxen.html">Xen</a>
</div>
</li>
<li>
<div>
<a title="Driver for QEMU, KQEMU, KVM and Xenner" class="inactive" href="drvqemu.html">QEMU / KVM</a>
</div>
</li>
<li>
<div>
<span class="active">Linux Container</span>
</div>
</li>
<li>
<div>
<a title="Psuedo-driver simulating APIs in memory for test suites" class="inactive" href="drvtest.html">Test</a>
</div>
</li>
<li>
<div>
<a title="Driver providing secure remote to the libvirt APIs" class="inactive" href="drvremote.html">Remote</a>
</div>
</li>
<li>
<div>
<a title="Driver for the OpenVZ container technology" class="inactive" href="drvopenvz.html">OpenVZ</a>
</div>
</li>
<li>
<div>
<a title="Driver for the storage management APIs" class="inactive" href="storage.html">Storage</a>
</div>
</li>
</ul>
</div>
</li>
<li>
<div>
<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
</div>
</li>
<li>
<div>
<a title="Bindings of the libvirt API for other languages" class="inactive" href="bindings.html">Language bindings</a>
</div>
</li>
</ul>
</div>
</li>
<li>
<div>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</div>
</li>
<li>
<div>
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
</div>
</li>
<li>
<div>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</div>
</li>
<li>
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<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
</div>
</li>
<li>
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</div>
</li>
<li>
<div>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</div>
</li>
</ul>
</div>
<div id="content">
<h1>LXC container driver</h1>
</div>
</div>
<div id="footer">
<p id="sponsor">
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
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<body>
<h1>LXC container driver</h1>
</body>
</html>

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<?xml version="1.0" encoding="ISO-8859-1"?>
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<li>
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<a title="Hypervisor specific driver information" class="active" href="drivers.html">Drivers</a>
<ul class="l2">
<li>
<div>
<a title="Driver the Xen hypervisor" class="inactive" href="drvxen.html">Xen</a>
</div>
</li>
<li>
<div>
<a title="Driver for QEMU, KQEMU, KVM and Xenner" class="inactive" href="drvqemu.html">QEMU / KVM</a>
</div>
</li>
<li>
<div>
<a title="Driver for the Linux native container API" class="inactive" href="drvlxc.html">Linux Container</a>
</div>
</li>
<li>
<div>
<a title="Psuedo-driver simulating APIs in memory for test suites" class="inactive" href="drvtest.html">Test</a>
</div>
</li>
<li>
<div>
<a title="Driver providing secure remote to the libvirt APIs" class="inactive" href="drvremote.html">Remote</a>
</div>
</li>
<li>
<div>
<span class="active">OpenVZ</span>
</div>
</li>
<li>
<div>
<a title="Driver for the storage management APIs" class="inactive" href="storage.html">Storage</a>
</div>
</li>
</ul>
</div>
</li>
<li>
<div>
<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
</div>
</li>
<li>
<div>
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</div>
</li>
</ul>
</div>
</li>
<li>
<div>
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</div>
</li>
<li>
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</div>
</li>
<li>
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</div>
</li>
<li>
<div>
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</div>
</li>
<li>
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</div>
</li>
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</div>
</li>
</ul>
</div>
<div id="content">
<h1>OpenVZ container driver</h1>
</div>
</div>
<div id="footer">
<p id="sponsor">
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
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</html>

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<html>
<body>
<h1>OpenVZ container driver</h1>
</body>
</html>

239
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<h1>QEMU/KVM hypervisor driver</h1>
<p>
The libvirt QEMU driver can manage any QEMU emulator from version 0.8.1
or later. It can also manage anything that provides the same QEMU command
line syntax and monitor interaction. This includes KVM, and Xenner.
</p>
<h2>Deployment pre-requisites</h2>
<ul>
<li><strong>QEMU emulators</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>qemu</code>, <code>qemu-system-x86_64</code>,
<code>qemu-system-mips</code>,<code>qemu-system-mipsel</code>,
<code>qemu-system-sparc</code>,<code>qemu-system-ppc</code>. The results
of this can be seen from the capabilities XML output.
</li>
<li><strong>KVM hypervisor</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>qemu-kvm</code> and <code>/dev/kvm</code> device
node. If both are found, then KVM fullyvirtualized, hardware accelerated
guests will be available.
</li>
<li><strong>Xenner hypervisor</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>xenner</code> and <code>/dev/kvm</code> device
node. If both are found, then Xen paravirtualized guests can be run using
the KVM hardware acceleration.
</li>
</ul>
<h2>
<a name="xmlconfig" id="xmlconfig">Example domain XML config</a>
</h2>
<h3>QEMU emulated guest on x86_64</h3>
<pre>&lt;domain type='qemu'&gt;
&lt;name&gt;QEmu-fedora-i686&lt;/name&gt;
&lt;uuid&gt;c7a5fdbd-cdaf-9455-926a-d65c16db1809&lt;/uuid&gt;
&lt;memory&gt;219200&lt;/memory&gt;
&lt;currentMemory&gt;219200&lt;/currentMemory&gt;
&lt;vcpu&gt;2&lt;/vcpu&gt;
&lt;os&gt;
&lt;type arch='i686' machine='pc'&gt;hvm&lt;/type&gt;
&lt;boot dev='cdrom'/&gt;
&lt;/os&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/bin/qemu-system-x86_64&lt;/emulator&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/home/user/boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/home/user/fedora.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source name='default'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>KVM hardware accelerated guest on i686</h3>
<pre>&lt;domain type='kvm'&gt;
&lt;name&gt;demo2&lt;/name&gt;
&lt;uuid&gt;4dea24b3-1d52-d8f3-2516-782e98a23fa0&lt;/uuid&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;os&gt;
&lt;type arch="i686"&gt;hvm&lt;/type&gt;
&lt;/os&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/bin/qemu-kvm&lt;/emulator&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/var/lib/libvirt/images/demo2.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;mac address='24:42:53:21:52:45'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Xen paravirtualized guests with hardware acceleration</h3>
</div>
</div>
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<html>
<body>
<h1>QEMU/KVM hypervisor driver</h1>
<p>
The libvirt QEMU driver can manage any QEMU emulator from version 0.8.1
or later. It can also manage anything that provides the same QEMU command
line syntax and monitor interaction. This includes KVM, and Xenner.
</p>
<h2>Deployment pre-requisites</h2>
<ul>
<li>
<strong>QEMU emulators</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>qemu</code>, <code>qemu-system-x86_64</code>,
<code>qemu-system-mips</code>,<code>qemu-system-mipsel</code>,
<code>qemu-system-sparc</code>,<code>qemu-system-ppc</code>. The results
of this can be seen from the capabilities XML output.
</li>
<li>
<strong>KVM hypervisor</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>qemu-kvm</code> and <code>/dev/kvm</code> device
node. If both are found, then KVM fullyvirtualized, hardware accelerated
guests will be available.
</li>
<li>
<strong>Xenner hypervisor</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>xenner</code> and <code>/dev/kvm</code> device
node. If both are found, then Xen paravirtualized guests can be run using
the KVM hardware acceleration.
</li>
</ul>
<h2><a name="xmlconfig">Example domain XML config</a></h2>
<h3>QEMU emulated guest on x86_64</h3>
<pre>&lt;domain type='qemu'&gt;
&lt;name&gt;QEmu-fedora-i686&lt;/name&gt;
&lt;uuid&gt;c7a5fdbd-cdaf-9455-926a-d65c16db1809&lt;/uuid&gt;
&lt;memory&gt;219200&lt;/memory&gt;
&lt;currentMemory&gt;219200&lt;/currentMemory&gt;
&lt;vcpu&gt;2&lt;/vcpu&gt;
&lt;os&gt;
&lt;type arch='i686' machine='pc'&gt;hvm&lt;/type&gt;
&lt;boot dev='cdrom'/&gt;
&lt;/os&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/bin/qemu-system-x86_64&lt;/emulator&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/home/user/boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/home/user/fedora.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source name='default'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>KVM hardware accelerated guest on i686</h3>
<pre>&lt;domain type='kvm'&gt;
&lt;name&gt;demo2&lt;/name&gt;
&lt;uuid&gt;4dea24b3-1d52-d8f3-2516-782e98a23fa0&lt;/uuid&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;os&gt;
&lt;type arch="i686"&gt;hvm&lt;/type&gt;
&lt;/os&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/bin/qemu-kvm&lt;/emulator&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/var/lib/libvirt/images/demo2.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;mac address='24:42:53:21:52:45'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Xen paravirtualized guests with hardware acceleration</h3>
</body>
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<div id="content">
<h1>Xen hypervisor driver</h1>
<p>
The libvirt Xen driver provides the ability to manage virtual machines
on any Xen release from 3.0.1 onwards.
</p>
<h2>Deployment pre-requisites</h2>
<p>
The libvirt Xen driver uses a combination of channels to manage Xen
virtual machines.
</p>
<ul>
<li><strong>XenD</strong>: Access to the Xen daemon is a mandatory
requirement for the libvirt Xen driver. It requires that the UNIX
socket interface be enabled in the <code>/etc/xen/xend-config.sxp</code>
configuration file. Specifically the config settings
<code>(xend-unix-server yes)</code>. This path is usually restricted
to only allow the <code>root</code> user access. As an alternative,
the HTTP interface can be used, however, this has significant security
implications.
</li>
<li><strong>XenStoreD</strong>: Access to the Xenstore daemon enables
more efficient codepaths for looking up domain information which
lowers the CPU overhead of management.
</li>
<li><strong>Hypercalls</strong>: The ability to make direct hypercalls
allows the most efficient codepaths in the driver to be used for
monitoring domain status.
</li>
<li><strong>XM config</strong>: When using Xen releases prior to 3.0.4,
there is no inactive domain management in XenD. For such releases,
libvirt will automatically process XM configuration files kept in
the <code>/etc/xen</code> directory. It is important not to place
any other non-config files in this directory.
</li>
</ul>
<h2>
<a name="xmlconfig" id="xmlconfig">Example domain XML config</a>
</h2>
<p>
Below are some example XML configurations for Xen guest domains.
For full details of the available options, consult the <a href="formatdomain.html">domain XML format</a>
guide.
</p>
<h3>Paravirtualized guest bootloader</h3>
<p>
Using a bootloader allows a paravirtualized guest to be booted using
a kernel stored inside its virtual disk image
</p>
<pre>&lt;domain type='xen' &gt;
&lt;name&gt;fc8&lt;/name&gt;
&lt;bootloader&gt;/usr/bin/pygrub&lt;/bootloader&gt;
&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;/os&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;
&lt;console tty='/dev/pts/5'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Paravirtualized guest direct kernel boot</h3>
<p>
For installation of paravirtualized guests it is typical to boot the
domain using a kernel and initrd stored in the host OS
</p>
<pre>&lt;domain type='xen' &gt;
&lt;name&gt;fc8&lt;/name&gt;
&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;kernel&gt;/var/lib/xen/install/vmlinuz-fedora8-x86_64&lt;/kernel&gt;
&lt;initrd&gt;/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64&lt;/initrd&gt;
&lt;cmdline&gt; kickstart=http://example.com/myguest.ks &lt;/cmdline&gt;
&lt;/os&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;console tty='/dev/pts/5'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Fullyvirtualized guest BIOS boot</h3>
<p>
Fullyvirtualized guests use the emulated BIOS to boot off the primary
harddisk, CDROM or Network PXE ROM.
</p>
<pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;boot dev='hd'/&gt;
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='floppy'&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target dev='fda'/&gt;
&lt;/disk&gt;
&lt;graphics type='vnc' port='5904'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Fullyvirtualized guest direct kernel boot</h3>
<p>
With Xen 3.2.0 or later it is possible to bypass the BIOS and directly
boot a Linux kernel and initrd as a fullyvirtualized domain. This allows
for complete automation of OS installation, for example using the Anaconda
kickstart support.
</p>
<pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;kernel&gt;/var/lib/xen/install/vmlinuz-fedora8-x86_64&lt;/kernel&gt;
&lt;initrd&gt;/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64&lt;/initrd&gt;
&lt;cmdline&gt; kickstart=http://example.com/myguest.ks &lt;/cmdline&gt;
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='floppy'&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target dev='fda'/&gt;
&lt;/disk&gt;
&lt;graphics type='vnc' port='5904'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
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<body>
<h1>Xen hypervisor driver</h1>
<p>
The libvirt Xen driver provides the ability to manage virtual machines
on any Xen release from 3.0.1 onwards.
</p>
<h2>Deployment pre-requisites</h2>
<p>
The libvirt Xen driver uses a combination of channels to manage Xen
virtual machines.
</p>
<ul>
<li>
<strong>XenD</strong>: Access to the Xen daemon is a mandatory
requirement for the libvirt Xen driver. It requires that the UNIX
socket interface be enabled in the <code>/etc/xen/xend-config.sxp</code>
configuration file. Specifically the config settings
<code>(xend-unix-server yes)</code>. This path is usually restricted
to only allow the <code>root</code> user access. As an alternative,
the HTTP interface can be used, however, this has significant security
implications.
</li>
<li>
<strong>XenStoreD</strong>: Access to the Xenstore daemon enables
more efficient codepaths for looking up domain information which
lowers the CPU overhead of management.
</li>
<li>
<strong>Hypercalls</strong>: The ability to make direct hypercalls
allows the most efficient codepaths in the driver to be used for
monitoring domain status.
</li>
<li>
<strong>XM config</strong>: When using Xen releases prior to 3.0.4,
there is no inactive domain management in XenD. For such releases,
libvirt will automatically process XM configuration files kept in
the <code>/etc/xen</code> directory. It is important not to place
any other non-config files in this directory.
</li>
</ul>
<h2><a name="xmlconfig">Example domain XML config</a></h2>
<p>
Below are some example XML configurations for Xen guest domains.
For full details of the available options, consult the <a href="formatdomain.html">domain XML format</a>
guide.
</p>
<h3>Paravirtualized guest bootloader</h3>
<p>
Using a bootloader allows a paravirtualized guest to be booted using
a kernel stored inside its virtual disk image
</p>
<pre>&lt;domain type='xen' &gt;
&lt;name&gt;fc8&lt;/name&gt;
&lt;bootloader&gt;/usr/bin/pygrub&lt;/bootloader&gt;
&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;/os&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;
&lt;console tty='/dev/pts/5'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Paravirtualized guest direct kernel boot</h3>
<p>
For installation of paravirtualized guests it is typical to boot the
domain using a kernel and initrd stored in the host OS
</p>
<pre>&lt;domain type='xen' &gt;
&lt;name&gt;fc8&lt;/name&gt;
&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;kernel&gt;/var/lib/xen/install/vmlinuz-fedora8-x86_64&lt;/kernel&gt;
&lt;initrd&gt;/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64&lt;/initrd&gt;
&lt;cmdline&gt; kickstart=http://example.com/myguest.ks &lt;/cmdline&gt;
&lt;/os&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;console tty='/dev/pts/5'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Fullyvirtualized guest BIOS boot</h3>
<p>
Fullyvirtualized guests use the emulated BIOS to boot off the primary
harddisk, CDROM or Network PXE ROM.
</p>
<pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;boot dev='hd'/&gt;
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='floppy'&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target dev='fda'/&gt;
&lt;/disk&gt;
&lt;graphics type='vnc' port='5904'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Fullyvirtualized guest direct kernel boot</h3>
<p>
With Xen 3.2.0 or later it is possible to bypass the BIOS and directly
boot a Linux kernel and initrd as a fullyvirtualized domain. This allows
for complete automation of OS installation, for example using the Anaconda
kickstart support.
</p>
<pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;kernel&gt;/var/lib/xen/install/vmlinuz-fedora8-x86_64&lt;/kernel&gt;
&lt;initrd&gt;/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64&lt;/initrd&gt;
&lt;cmdline&gt; kickstart=http://example.com/myguest.ks &lt;/cmdline&gt;
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='floppy'&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target dev='fda'/&gt;
&lt;/disk&gt;
&lt;graphics type='vnc' port='5904'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
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<li>dont force the library user into one style of error handling</li>
</ul><p>As result the library provide both synchronous, callback based and
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<div id="content">
<h1>Handling of errors</h1>
<p>The main goals of libvirt when it comes to error handling are:</p>
<ul>
<li>provide as much detail as possible</li>
<li>provide the information as soon as possible</li>
<li>dont force the library user into one style of error handling</li>
</ul>
<p>As result the library provide both synchronous, callback based and
asynchronous error reporting. When an error happens in the library code the
error is logged, allowing to retrieve it later and if the user registered an
error callback it will be called synchronously. Once the call to libvirt ends
the error can be detected by the return value and the full information for
the last logged error can be retrieved.</p><p>To avoid as much as possible troubles with a global variable in a
the last logged error can be retrieved.</p>
<p>To avoid as much as possible troubles with a global variable in a
multithreaded environment, libvirt will associate when possible the errors to
the current connection they are related to, that way the error is stored in a
dynamic structure which can be made thread specific. Error callback can be
set specifically to a connection with</p><p>So error handling in the code is the following:</p><ol><li>if the error can be associated to a connection for example when failing
set specifically to a connection with</p>
<p>So error handling in the code is the following:</p>
<ol>
<li>if the error can be associated to a connection for example when failing
to look up a domain
<ol><li>if there is a callback associated to the connection set with <a href="html/libvirt-virterror.html#virConnSetErrorFunc">virConnSetErrorFunc</a>,
call it with the error information</li>
<li>otherwise if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li>
<li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
call it with the error information</li><li>otherwise if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li><li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
which is the default error function of the library issuing the error
on stderr</li>
<li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virConnGetLastError">virConnGetLastError</a></li>
</ol></li>
<li>otherwise like when failing to create an hypervisor connection:
on stderr</li><li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virConnGetLastError">virConnGetLastError</a></li></ol></li>
<li>otherwise like when failing to create an hypervisor connection:
<ol><li>if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li>
<li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
call it with the error information</li><li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
which is the default error function of the library issuing the error
on stderr</li>
<li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virGetLastError">virGetLastError</a></li>
</ol></li>
</ol><p>In all cases the error information is provided as a <a href="html/libvirt-virterror.html#virErrorPtr">virErrorPtr</a> pointer to
on stderr</li><li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virGetLastError">virGetLastError</a></li></ol></li>
</ol>
<p>In all cases the error information is provided as a <a href="html/libvirt-virterror.html#virErrorPtr">virErrorPtr</a> pointer to
read-only structure <a href="html/libvirt-virterror.html#virError">virError</a> containing the
following fields:</p><ul><li>code: an error number from the <a href="html/libvirt-virterror.html#virErrorNumber">virErrorNumber</a>
following fields:</p>
<ul>
<li>code: an error number from the <a href="html/libvirt-virterror.html#virErrorNumber">virErrorNumber</a>
enum</li>
<li>domain: an enum indicating which part of libvirt raised the error see
<li>domain: an enum indicating which part of libvirt raised the error see
<a href="html/libvirt-virterror.html#virErrorDomain">virErrorDomain</a></li>
<li>level: the error level, usually VIR_ERR_ERROR, though there is room for
<li>level: the error level, usually VIR_ERR_ERROR, though there is room for
warnings like VIR_ERR_WARNING</li>
<li>message: the full human-readable formatted string of the error</li>
<li>conn: if available a pointer to the <a href="html/libvirt-libvirt.html#virConnectPtr">virConnectPtr</a>
<li>message: the full human-readable formatted string of the error</li>
<li>conn: if available a pointer to the <a href="html/libvirt-libvirt.html#virConnectPtr">virConnectPtr</a>
connection to the hypervisor where this happened</li>
<li>dom: if available a pointer to the <a href="html/libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain
<li>dom: if available a pointer to the <a href="html/libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain
targeted in the operation</li>
</ul><p>and then extra raw information about the error which may be initialized
to 0 or NULL if unused</p><ul><li>str1, str2, str3: string information, usually str1 is the error
</ul>
<p>and then extra raw information about the error which may be initialized
to 0 or NULL if unused</p>
<ul>
<li>str1, str2, str3: string information, usually str1 is the error
message format</li>
<li>int1, int2: integer information</li>
</ul><p>So usually, setting up specific error handling with libvirt consist of
<li>int1, int2: integer information</li>
</ul>
<p>So usually, setting up specific error handling with libvirt consist of
registering an handler with with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a> or
with <a href="html/libvirt-virterror.html#virConnSetErrorFunc">virConnSetErrorFunc</a>,
check the value of the code value, take appropriate action, if needed let
@ -57,13 +145,24 @@ For asynchronous error handing, set such a function doing nothing to avoid
the error being reported on stderr, and call virConnGetLastError or
virGetLastError when an API call returned an error value. It can be a good
idea to use <a href="html/libvirt-virterror.html#virResetLastError">virResetError</a> or <a href="html/libvirt-virterror.html#virConnResetLastError">virConnResetLastError</a>
once an error has been processed fully.</p><p>At the python level, there only a global reporting callback function at
this point, see the error.py example about it:</p><pre>def handler(ctxt, err):
once an error has been processed fully.</p>
<p>At the python level, there only a global reporting callback function at
this point, see the error.py example about it:</p>
<pre>def handler(ctxt, err):
global errno
#print "handler(%s, %s)" % (ctxt, err)
errno = err
libvirt.registerErrorHandler(handler, 'context') </pre><p>the second argument to the registerErrorHandler function is passed as the
libvirt.registerErrorHandler(handler, 'context') </pre>
<p>the second argument to the registerErrorHandler function is passed as the
first argument of the callback like in the C version. The error is a tuple
containing the same field as a virError in C, but cast to Python.</p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
containing the same field as a virError in C, but cast to Python.</p>
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83
docs/errors.html.in Normal file
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@ -0,0 +1,83 @@
<?xml version="1.0"?>
<html>
<body>
<h1 >Handling of errors</h1>
<p>The main goals of libvirt when it comes to error handling are:</p>
<ul>
<li>provide as much detail as possible</li>
<li>provide the information as soon as possible</li>
<li>dont force the library user into one style of error handling</li>
</ul>
<p>As result the library provide both synchronous, callback based and
asynchronous error reporting. When an error happens in the library code the
error is logged, allowing to retrieve it later and if the user registered an
error callback it will be called synchronously. Once the call to libvirt ends
the error can be detected by the return value and the full information for
the last logged error can be retrieved.</p>
<p>To avoid as much as possible troubles with a global variable in a
multithreaded environment, libvirt will associate when possible the errors to
the current connection they are related to, that way the error is stored in a
dynamic structure which can be made thread specific. Error callback can be
set specifically to a connection with</p>
<p>So error handling in the code is the following:</p>
<ol>
<li>if the error can be associated to a connection for example when failing
to look up a domain
<ol><li>if there is a callback associated to the connection set with <a href="html/libvirt-virterror.html#virConnSetErrorFunc">virConnSetErrorFunc</a>,
call it with the error information</li><li>otherwise if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li><li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
which is the default error function of the library issuing the error
on stderr</li><li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virConnGetLastError">virConnGetLastError</a></li></ol></li>
<li>otherwise like when failing to create an hypervisor connection:
<ol><li>if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li><li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
which is the default error function of the library issuing the error
on stderr</li><li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virGetLastError">virGetLastError</a></li></ol></li>
</ol>
<p>In all cases the error information is provided as a <a href="html/libvirt-virterror.html#virErrorPtr">virErrorPtr</a> pointer to
read-only structure <a href="html/libvirt-virterror.html#virError">virError</a> containing the
following fields:</p>
<ul>
<li>code: an error number from the <a href="html/libvirt-virterror.html#virErrorNumber">virErrorNumber</a>
enum</li>
<li>domain: an enum indicating which part of libvirt raised the error see
<a href="html/libvirt-virterror.html#virErrorDomain">virErrorDomain</a></li>
<li>level: the error level, usually VIR_ERR_ERROR, though there is room for
warnings like VIR_ERR_WARNING</li>
<li>message: the full human-readable formatted string of the error</li>
<li>conn: if available a pointer to the <a href="html/libvirt-libvirt.html#virConnectPtr">virConnectPtr</a>
connection to the hypervisor where this happened</li>
<li>dom: if available a pointer to the <a href="html/libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain
targeted in the operation</li>
</ul>
<p>and then extra raw information about the error which may be initialized
to 0 or NULL if unused</p>
<ul>
<li>str1, str2, str3: string information, usually str1 is the error
message format</li>
<li>int1, int2: integer information</li>
</ul>
<p>So usually, setting up specific error handling with libvirt consist of
registering an handler with with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a> or
with <a href="html/libvirt-virterror.html#virConnSetErrorFunc">virConnSetErrorFunc</a>,
check the value of the code value, take appropriate action, if needed let
libvirt print the error on stderr by calling <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>.
For asynchronous error handing, set such a function doing nothing to avoid
the error being reported on stderr, and call virConnGetLastError or
virGetLastError when an API call returned an error value. It can be a good
idea to use <a href="html/libvirt-virterror.html#virResetLastError">virResetError</a> or <a href="html/libvirt-virterror.html#virConnResetLastError">virConnResetLastError</a>
once an error has been processed fully.</p>
<p>At the python level, there only a global reporting callback function at
this point, see the error.py example about it:</p>
<pre>def handler(ctxt, err):
global errno
#print "handler(%s, %s)" % (ctxt, err)
errno = err
libvirt.registerErrorHandler(handler, 'context') </pre>
<p>the second argument to the registerErrorHandler function is passed as the
first argument of the callback like in the C version. The error is a tuple
containing the same field as a virError in C, but cast to Python.</p>
</body>
</html>

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@ -29,21 +29,21 @@ getDomainInfo(int id) {
conn = virConnectOpenReadOnly(NULL);
if (conn == NULL) {
fprintf(stderr, "Failed to connect to hypervisor\n");
goto error;
goto error;
}
/* Find the domain of the given id */
dom = virDomainLookupByID(conn, id);
if (dom == NULL) {
fprintf(stderr, "Failed to find Domain %d\n", id);
goto error;
goto error;
}
/* Get the information */
ret = virDomainGetInfo(dom, &info);
if (ret < 0) {
fprintf(stderr, "Failed to get information for Domain %d\n", id);
goto error;
goto error;
}
printf("Domains %d: %d CPUs\n", id, info.nrVirtCpu);
@ -52,7 +52,7 @@ error:
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
virConnectClose(conn);
}
int main() {

View File

@ -30,7 +30,7 @@ checkDomainState(virDomainPtr dom) {
ret = virDomainGetInfo(dom, &info);
if (ret < 0) {
return(-1);
return(-1);
}
return(info.state);
}
@ -50,42 +50,42 @@ SuspendAndResumeDomain(int id) {
dom = virDomainLookupByID(conn, id);
if (dom == NULL) {
fprintf(stderr, "Failed to find Domain %d\n", id);
goto error;
goto error;
}
/* Check state */
state = checkDomainState(dom);
if ((state == VIR_DOMAIN_RUNNING) ||
(state == VIR_DOMAIN_NOSTATE) ||
(state == VIR_DOMAIN_BLOCKED)) {
printf("Suspending domain...\n");
ret = virDomainSuspend(dom);
if (ret < 0) {
fprintf(stderr, "Failed to suspend Domain %d\n", id);
goto error;
}
state = checkDomainState(dom);
if (state != VIR_DOMAIN_PAUSED) {
fprintf(stderr, "Domain %d state is not suspended\n", id);
} else {
printf("Domain suspended, resuming it...\n");
}
ret = virDomainResume(dom);
if (ret < 0) {
fprintf(stderr, "Failed to resume Domain %d\n", id);
goto error;
}
state = checkDomainState(dom);
if ((state == VIR_DOMAIN_RUNNING) ||
(state == VIR_DOMAIN_NOSTATE) ||
(state == VIR_DOMAIN_BLOCKED)) {
printf("Domain resumed\n");
} else {
fprintf(stderr, "Domain %d state indicate it is not resumed\n", id);
}
(state == VIR_DOMAIN_BLOCKED)) {
printf("Suspending domain...\n");
ret = virDomainSuspend(dom);
if (ret < 0) {
fprintf(stderr, "Failed to suspend Domain %d\n", id);
goto error;
}
state = checkDomainState(dom);
if (state != VIR_DOMAIN_PAUSED) {
fprintf(stderr, "Domain %d state is not suspended\n", id);
} else {
printf("Domain suspended, resuming it...\n");
}
ret = virDomainResume(dom);
if (ret < 0) {
fprintf(stderr, "Failed to resume Domain %d\n", id);
goto error;
}
state = checkDomainState(dom);
if ((state == VIR_DOMAIN_RUNNING) ||
(state == VIR_DOMAIN_NOSTATE) ||
(state == VIR_DOMAIN_BLOCKED)) {
printf("Domain resumed\n");
} else {
fprintf(stderr, "Domain %d state indicate it is not resumed\n", id);
}
} else {
fprintf(stderr, "Domain %d is not in a state where it should be suspended\n", id);
goto error;
goto error;
}
error:
@ -100,7 +100,7 @@ int main(int argc, char **argv) {
conn = virConnectOpenReadOnly(NULL);
if (conn == NULL) {
fprintf(stderr, "Failed to connect to hypervisor\n");
goto error;
goto error;
}
if (argc > 1) {
@ -108,27 +108,27 @@ int main(int argc, char **argv) {
}
if (id == 0) {
int i, j, ids[10];
i = virConnectListDomains(conn, &ids[0], 10);
if (i < 0) {
fprintf(stderr, "Failed to list the domains\n");
goto error;
}
for (j = 0;j < i;j++) {
if (ids[j] != 0) {
id = ids[j];
break;
}
}
i = virConnectListDomains(conn, &ids[0], 10);
if (i < 0) {
fprintf(stderr, "Failed to list the domains\n");
goto error;
}
for (j = 0;j < i;j++) {
if (ids[j] != 0) {
id = ids[j];
break;
}
}
}
if (id == 0) {
fprintf(stderr, "Failed find a running guest domain\n");
goto error;
fprintf(stderr, "Failed find a running guest domain\n");
goto error;
}
SuspendAndResumeDomain(id);
error:
if (conn != NULL)
virConnectClose(conn);
virConnectClose(conn);
return(0);
}

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@ -1,421 +1,150 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>XML Format</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">XML Format</h1><p>This section describes the XML format used to represent domains, there are
variations on the format based on the kind of domains run and the options
used to launch them:</p><ul><li><a href="#Normal1">Normal paravirtualized Xen domains</a></li>
<li><a href="#Fully1">Fully virtualized Xen domains</a></li>
<li><a href="#KVM1">KVM domains</a></li>
<li><a href="#Net1">Networking options for QEmu and KVM</a></li>
<li><a href="#QEmu1">QEmu domains</a></li>
<li><a href="#Capa1">Discovering virtualization capabilities</a></li>
</ul><p>The formats try as much as possible to follow the same structure and reuse
elements and attributes where it makes sense.</p><h3 id="Normal"><a name="Normal1" id="Normal1">Normal paravirtualized Xen
guests</a>:</h3><p>The library use an XML format to describe domains, as input to <a href="html/libvirt-libvirt.html#virDomainCreateLinux">virDomainCreateLinux()</a>
and as the output of <a href="html/libvirt-libvirt.html#virDomainGetXMLDesc">virDomainGetXMLDesc()</a>,
the following is an example of the format as returned by the shell command
<code>virsh xmldump fc4</code> , where fc4 was one of the running domains:</p><pre>&lt;domain type='xen' <span style="color: #0071FF; background-color: #FFFFFF">id='18'</span>&gt;
&lt;name&gt;fc4&lt;/name&gt;
<span style="color: #00B200; background-color: #FFFFFF">&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;kernel&gt;/boot/vmlinuz-2.6.15-1.43_FC5guest&lt;/kernel&gt;
&lt;initrd&gt;/boot/initrd-2.6.15-1.43_FC5guest.img&lt;/initrd&gt;
&lt;root&gt;/dev/sda1&lt;/root&gt;
&lt;cmdline&gt; ro selinux=0 3&lt;/cmdline&gt;
&lt;/os&gt;</span>
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
<span style="color: #FF0080; background-color: #FFFFFF">&lt;disk type='file'&gt;
&lt;source file='/u/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;</span>
<span style="color: #0000FF; background-color: #FFFFFF">&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='</span><span style="color: #0000FF; background-color: #FFFFFF"></span><span style="color: #0000FF; background-color: #FFFFFF">aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;</span>
<span style="color: #FF8000; background-color: #FFFFFF">&lt;console tty='/dev/pts/5'/&gt;</span>
&lt;/devices&gt;
&lt;/domain&gt;</pre><p>The root element must be called <code>domain</code> with no namespace, the
<code>type</code> attribute indicates the kind of hypervisor used, 'xen' is
the default value. The <code>id</code> attribute gives the domain id at
runtime (not however that this may change, for example if the domain is saved
to disk and restored). The domain has a few children whose order is not
significant:</p><ul><li>name: the domain name, preferably ASCII based</li>
<li>memory: the maximum memory allocated to the domain in kilobytes</li>
<li>vcpu: the number of virtual cpu configured for the domain</li>
<li>os: a block describing the Operating System, its content will be
dependent on the OS type
<ul><li>type: indicate the OS type, always linux at this point</li>
<li>kernel: path to the kernel on the Domain 0 filesystem</li>
<li>initrd: an optional path for the init ramdisk on the Domain 0
filesystem</li>
<li>cmdline: optional command line to the kernel</li>
<li>root: the root filesystem from the guest viewpoint, it may be
passed as part of the cmdline content too</li>
</ul></li>
<li>devices: a list of <code>disk</code>, <code>interface</code> and
<code>console</code> descriptions in no special order</li>
</ul><p>The format of the devices and their type may grow over time, but the
following should be sufficient for basic use:</p><p>A <code>disk</code> device indicates a block device, it can have two
values for the type attribute either 'file' or 'block' corresponding to the 2
options available at the Xen layer. It has two mandatory children, and one
optional one in no specific order:</p><ul><li>source with a file attribute containing the path in Domain 0 to the
file or a dev attribute if using a block device, containing the device
name ('hda5' or '/dev/hda5')</li>
<li>target indicates in a dev attribute the device where it is mapped in
the guest</li>
<li>readonly an optional empty element indicating the device is
read-only</li>
<li>shareable an optional empty element indicating the device
can be used read/write with other domains</li>
</ul><p>An <code>interface</code> element describes a network device mapped on the
guest, it also has a type whose value is currently 'bridge', it also have a
number of children in no specific order:</p><ul><li>source: indicating the bridge name</li>
<li>mac: the optional mac address provided in the address attribute</li>
<li>ip: the optional IP address provided in the address attribute</li>
<li>script: the script used to bridge the interface in the Domain 0</li>
<li>target: and optional target indicating the device name.</li>
</ul><p>A <code>console</code> element describes a serial console connection to
the guest. It has no children, and a single attribute <code>tty</code> which
provides the path to the Pseudo TTY on which the guest console can be
accessed</p><p>Life cycle actions for the domain can also be expressed in the XML format,
they drive what should be happening if the domain crashes, is rebooted or is
poweroff. There is various actions possible when this happen:</p><ul><li>destroy: The domain is cleaned up (that's the default normal processing
in Xen)</li>
<li>restart: A new domain is started in place of the old one with the same
configuration parameters</li>
<li>preserve: The domain will remain in memory until it is destroyed
manually, it won't be running but allows for post-mortem debugging</li>
<li>rename-restart: a variant of the previous one but where the old domain
is renamed before being saved to allow a restart</li>
</ul><p>The following could be used for a Xen production system:</p><pre>&lt;domain&gt;
...
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_crash&gt;rename-restart&lt;/on_crash&gt;
...
&lt;/domain&gt;</pre><p>While the format may be extended in various ways as support for more
hypervisor types and features are added, it is expected that this core subset
will remain functional in spite of the evolution of the library.</p><h3 id="Fully"><a name="Fully1" id="Fully1">Fully virtualized guests</a>
(added in 0.1.3):</h3><p>Here is an example of a domain description used to start a fully
virtualized (a.k.a. HVM) Xen domain. This requires hardware virtualization
support at the processor level but allows to run unmodified operating
systems:</p><pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;type&gt;hvm&lt;/type&gt;</span>
<span style="color: #0000E5; background-color: #FFFFFF">&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;</span>
<span style="color: #0000E5; background-color: #FFFFFF">&lt;boot dev='hd'/&gt;</span>
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
<span style="color: #E50000; background-color: #FFFFFF">&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;</span>
&lt;/features&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;clock sync="localtime"/&gt;</span>
&lt;devices&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;</span>
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/root/fv0'/&gt;
&lt;target <span style="color: #0000E5; background-color: #FFFFFF">dev='hda'</span>/&gt;
&lt;/disk&gt;
&lt;disk type='file' <span style="color: #0000E5; background-color: #FFFFFF">device='cdrom'</span>&gt;
&lt;source file='/root/fc5-x86_64-boot.iso'/&gt;
&lt;target <span style="color: #0000E5; background-color: #FFFFFF">dev='hdc'</span>/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' <span style="color: #0000E5; background-color: #FFFFFF">device='floppy'</span>&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target <span style="color: #0000E5; background-color: #FFFFFF">dev='fda'</span>/&gt;
&lt;/disk&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;graphics type='vnc' port='5904'/&gt;</span>
&lt;/devices&gt;
&lt;/domain&gt;</pre><p>There is a few things to notice specifically for HVM domains:</p><ul><li>the optional <code>&lt;features&gt;</code> block is used to enable
certain guest CPU / system features. For HVM guests the following
features are defined:
<ul><li><code>pae</code> - enable PAE memory addressing</li>
<li><code>apic</code> - enable IO APIC</li>
<li><code>acpi</code> - enable ACPI bios</li>
</ul></li>
<li>the optional <code>&lt;clock&gt;</code> element is used to specify
whether the emulated BIOS clock in the guest is synced to either
<code>localtime</code> or <code>utc</code>. In general Windows will
want <code>localtime</code> while all other operating systems will
want <code>utc</code>. The default is thus <code>utc</code></li>
<li>the <code>&lt;os&gt;</code> block description is very different, first
it indicates that the type is 'hvm' for hardware virtualization, then
instead of a kernel, boot and command line arguments, it points to an os
boot loader which will extract the boot information from the boot device
specified in a separate boot element. The <code>dev</code> attribute on
the <code>boot</code> tag can be one of:
<ul><li><code>fd</code> - boot from first floppy device</li>
<li><code>hd</code> - boot from first harddisk device</li>
<li><code>cdrom</code> - boot from first cdrom device</li>
</ul></li>
<li>the <code>&lt;devices&gt;</code> section includes an emulator entry
pointing to an additional program in charge of emulating the devices</li>
<li>the disk entry indicates in the dev target section that the emulation
for the drive is the first IDE disk device hda. The list of device names
supported is dependent on the Hypervisor, but for Xen it can be any IDE
device <code>hda</code>-<code>hdd</code>, or a floppy device
<code>fda</code>, <code>fdb</code>. The <code>&lt;disk&gt;</code> element
also supports a 'device' attribute to indicate what kinda of hardware to
emulate. The following values are supported:
<ul><li><code>floppy</code> - a floppy disk controller</li>
<li><code>disk</code> - a generic hard drive (the default it
omitted)</li>
<li><code>cdrom</code> - a CDROM device</li>
</ul>
For Xen 3.0.2 and earlier a CDROM device can only be emulated on the
<code>hdc</code> channel, while for 3.0.3 and later, it can be emulated
on any IDE channel.</li>
<li>the <code>&lt;devices&gt;</code> section also include at least one
entry for the graphic device used to render the os. Currently there is
just 2 types possible 'vnc' or 'sdl'. If the type is 'vnc', then an
additional <code>port</code> attribute will be present indicating the TCP
port on which the VNC server is accepting client connections.</li>
</ul><p>It is likely that the HVM description gets additional optional elements
and attributes as the support for fully virtualized domain expands,
especially for the variety of devices emulated and the graphic support
options offered.</p><h3><a name="KVM1" id="KVM1">KVM domain (added in 0.2.0)</a></h3><p>Support for the <a href="http://kvm.qumranet.com/">KVM virtualization</a>
is provided in recent Linux kernels (2.6.20 and onward). This requires
specific hardware with acceleration support and the availability of the
special version of the <a href="http://fabrice.bellard.free.fr/qemu/">QEmu</a> binary. Since this
relies on QEmu for the machine emulation like fully virtualized guests the
XML description is quite similar, here is a simple example:</p><pre>&lt;domain <span style="color: #FF0000; background-color: #FFFFFF">type='kvm'</span>&gt;
&lt;name&gt;demo2&lt;/name&gt;
&lt;uuid&gt;4dea24b3-1d52-d8f3-2516-782e98a23fa0&lt;/uuid&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;/os&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;clock sync="localtime"/&gt;</span>
&lt;devices&gt;
<span style="color: #FF0000; background-color: #FFFFFF">&lt;emulator&gt;/home/user/usr/kvm-devel/bin/qemu-system-x86_64&lt;/emulator&gt;</span>
&lt;disk type='file' device='disk'&gt;
&lt;source file='/home/user/fedora/diskboot.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface <span style="color: #FF0000; background-color: #FFFFFF">type='user'</span>&gt;
&lt;mac address='24:42:53:21:52:45'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre><p>The specific points to note if using KVM are:</p><ul><li>the top level domain element carries a type of 'kvm'</li>
<li>the &lt;clock&gt; optional is supported as with Xen HVM</li>
<li>the &lt;devices&gt; emulator points to the special qemu binary required
for KVM</li>
<li>networking interface definitions definitions are somewhat different due
to a different model from Xen see below</li>
</ul><p>except those points the options should be quite similar to Xen HVM
ones.</p><h3><a name="Net1" id="Net1">Networking options for QEmu and KVM (added in 0.2.0)</a></h3><p>The networking support in the QEmu and KVM case is more flexible, and
support a variety of options:</p><ol><li>Userspace SLIRP stack
<p>Provides a virtual LAN with NAT to the outside world. The virtual
network has DHCP &amp; DNS services and will give the guest VM addresses
starting from <code>10.0.2.15</code>. The default router will be
<code>10.0.2.2</code> and the DNS server will be <code>10.0.2.3</code>.
This networking is the only option for unprivileged users who need their
VMs to have outgoing access. Example configs are:</p>
<pre>&lt;interface type='user'/&gt;</pre>
<pre>
&lt;interface type='user'&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
</pre>
</li>
<li>Virtual network
<p>Provides a virtual network using a bridge device in the host.
Depending on the virtual network configuration, the network may be
totally isolated, NAT'ing to an explicit network device, or NAT'ing to
the default route. DHCP and DNS are provided on the virtual network in
all cases and the IP range can be determined by examining the virtual
network config with '<code>virsh net-dumpxml &lt;network
name&gt;</code>'. There is one virtual network called 'default' setup out
of the box which does NAT'ing to the default route and has an IP range of
<code>192.168.22.0/255.255.255.0</code>. Each guest will have an
associated tun device created with a name of vnetN, which can also be
overridden with the &lt;target&gt; element. Example configs are:</p>
<pre>&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;/interface&gt;
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
</pre>
</li>
<li>Bridge to to LAN
<p>Provides a bridge from the VM directly onto the LAN. This assumes
there is a bridge device on the host which has one or more of the hosts
physical NICs enslaved. The guest VM will have an associated tun device
created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. The tun device will be enslaved to the bridge.
The IP range / network configuration is whatever is used on the LAN. This
provides the guest VM full incoming &amp; outgoing net access just like a
physical machine. Examples include:</p>
<pre>&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;/interface&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;</pre>
</li>
<li>Generic connection to LAN
<p>Provides a means for the administrator to execute an arbitrary script
to connect the guest's network to the LAN. The guest will have a tun
device created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. After creating the tun device a shell script will
be run which is expected to do whatever host network integration is
required. By default this script is called /etc/qemu-ifup but can be
overridden.</p>
<pre>&lt;interface type='ethernet'/&gt;
&lt;interface type='ethernet'&gt;
&lt;target dev='vnet7'/&gt;
&lt;script path='/etc/qemu-ifup-mynet'/&gt;
&lt;/interface&gt;</pre>
</li>
<li>Multicast tunnel
<p>A multicast group is setup to represent a virtual network. Any VMs
whose network devices are in the same multicast group can talk to each
other even across hosts. This mode is also available to unprivileged
users. There is no default DNS or DHCP support and no outgoing network
access. To provide outgoing network access, one of the VMs should have a
2nd NIC which is connected to one of the first 4 network types and do the
appropriate routing. The multicast protocol is compatible with that used
by user mode linux guests too. The source address used must be from the
multicast address block.</p>
<pre>&lt;interface type='mcast'&gt;
&lt;source address='230.0.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
</li>
<li>TCP tunnel
<p>A TCP client/server architecture provides a virtual network. One VM
provides the server end of the network, all other VMS are configured as
clients. All network traffic is routed between the VMs via the server.
This mode is also available to unprivileged users. There is no default
DNS or DHCP support and no outgoing network access. To provide outgoing
network access, one of the VMs should have a 2nd NIC which is connected
to one of the first 4 network types and do the appropriate routing.</p>
<p>Example server config:</p>
<pre>&lt;interface type='server'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
<p>Example client config:</p>
<pre>&lt;interface type='client'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
</li>
</ol><p>To be noted, options 2, 3, 4 are also supported by Xen VMs, so it is
possible to use these configs to have networking with both Xen &amp;
QEMU/KVMs connected to each other.</p><h3>Q<a name="QEmu1" id="QEmu1">Emu domain (added in 0.2.0)</a></h3><p>Libvirt support for KVM and QEmu is the same code base with only minor
changes. The configuration is as a result nearly identical, the only changes
are related to QEmu ability to emulate <a href="http://www.qemu.org/status.html">various CPU type and hardware
platforms</a>, and kqemu support (QEmu own kernel accelerator when the
emulated CPU is i686 as well as the target machine):</p><pre>&lt;domain <span style="color: #FF0000; background-color: #FFFFFF">type='qemu'</span>&gt;
&lt;name&gt;QEmu-fedora-i686&lt;/name&gt;
&lt;uuid&gt;c7a5fdbd-cdaf-9455-926a-d65c16db1809&lt;/uuid&gt;
&lt;memory&gt;219200&lt;/memory&gt;
&lt;currentMemory&gt;219200&lt;/currentMemory&gt;
&lt;vcpu&gt;2&lt;/vcpu&gt;
&lt;os&gt;
<span style="color: #FF0000; background-color: #FFFFFF">&lt;type arch='i686' machine='pc'&gt;hvm&lt;/type&gt;</span>
&lt;boot dev='cdrom'/&gt;
&lt;/os&gt;
&lt;devices&gt;
<span style="color: #FF0000; background-color: #FFFFFF">&lt;emulator&gt;/usr/bin/qemu&lt;/emulator&gt;</span>
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/home/user/boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/home/user/fedora.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source name='default'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre><p>The difference here are:</p><ul><li>the value of type on top-level domain, it's 'qemu' or kqemu if asking
for <a href="http://www.qemu.org/kqemu-tech.html">kernel assisted
acceleration</a></li>
<li>the os type block defines the architecture to be emulated, and
optionally the machine type, see the discovery API below</li>
<li>the emulator string must point to the right emulator for that
architecture</li>
</ul><h3><a name="Capa1" id="Capa1">Discovering virtualization capabilities (Added in 0.2.1)</a></h3><p>As new virtualization engine support gets added to libvirt, and to handle
cases like QEmu supporting a variety of emulations, a query interface has
been added in 0.2.1 allowing to list the set of supported virtualization
capabilities on the host:</p><pre> char * virConnectGetCapabilities (virConnectPtr conn);</pre><p>The value returned is an XML document listing the virtualization
capabilities of the host and virtualization engine to which
<code>@conn</code> is connected. One can test it using <code>virsh</code>
command line tool command '<code>capabilities</code>', it dumps the XML
associated to the current connection. For example in the case of a 64 bits
machine with hardware virtualization capabilities enabled in the chip and
BIOS you will see</p><pre>&lt;capabilities&gt;
<span style="color: #E50000; background-color: #FFFFFF">&lt;host&gt;
&lt;cpu&gt;
&lt;arch&gt;x86_64&lt;/arch&gt;
&lt;features&gt;
&lt;vmx/&gt;
&lt;/features&gt;
&lt;/cpu&gt;
&lt;/host&gt;</span>
&lt;!-- xen-3.0-x86_64 --&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;guest&gt;
&lt;os_type&gt;xen&lt;/os_type&gt;
&lt;arch name="x86_64"&gt;
&lt;wordsize&gt;64&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib64/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
&lt;!-- hvm-3.0-x86_32 --&gt;
<span style="color: #00B200; background-color: #FFFFFF">&lt;guest&gt;
&lt;os_type&gt;hvm&lt;/os_type&gt;
&lt;arch name="i686"&gt;
&lt;wordsize&gt;32&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;machine&gt;pc&lt;/machine&gt;
&lt;machine&gt;isapc&lt;/machine&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
...
&lt;/capabilities&gt;</pre><p>The first block (in red) indicates the host hardware capabilities, currently
it is limited to the CPU properties but other information may be available,
it shows the CPU architecture, and the features of the chip (the feature
block is similar to what you will find in a Xen fully virtualized domain
description).</p><p>The second block (in blue) indicates the paravirtualization support of the
Xen support, you will see the os_type of xen to indicate a paravirtual
kernel, then architecture information and potential features.</p><p>The third block (in green) gives similar information but when running a
32 bit OS fully virtualized with Xen using the hvm support.</p><p>This section is likely to be updated and augmented in the future, see <a href="https://www.redhat.com/archives/libvir-list/2007-March/msg00215.html">the
discussion</a> which led to the capabilities format in the mailing-list
archives.</p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
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<h1>Driver capabilities XML format</h1>
<p>As new virtualization engine support gets added to libvirt, and to handle
cases like QEmu supporting a variety of emulations, a query interface has
been added in 0.2.1 allowing to list the set of supported virtualization
capabilities on the host:</p>
<pre> char * virConnectGetCapabilities (virConnectPtr conn);</pre>
<p>The value returned is an XML document listing the virtualization
capabilities of the host and virtualization engine to which
<code>@conn</code> is connected. One can test it using <code>virsh</code>
command line tool command '<code>capabilities</code>', it dumps the XML
associated to the current connection. For example in the case of a 64 bits
machine with hardware virtualization capabilities enabled in the chip and
BIOS you will see</p>
<pre>&lt;capabilities&gt;
<span style="color: #E50000">&lt;host&gt;
&lt;cpu&gt;
&lt;arch&gt;x86_64&lt;/arch&gt;
&lt;features&gt;
&lt;vmx/&gt;
&lt;/features&gt;
&lt;/cpu&gt;
&lt;/host&gt;</span>
&lt;!-- xen-3.0-x86_64 --&gt;
<span style="color: #0000E5">&lt;guest&gt;
&lt;os_type&gt;xen&lt;/os_type&gt;
&lt;arch name="x86_64"&gt;
&lt;wordsize&gt;64&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib64/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
&lt;!-- hvm-3.0-x86_32 --&gt;
<span style="color: #00B200">&lt;guest&gt;
&lt;os_type&gt;hvm&lt;/os_type&gt;
&lt;arch name="i686"&gt;
&lt;wordsize&gt;32&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;machine&gt;pc&lt;/machine&gt;
&lt;machine&gt;isapc&lt;/machine&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
...
&lt;/capabilities&gt;</pre>
<p>The first block (in red) indicates the host hardware capabilities, currently
it is limited to the CPU properties but other information may be available,
it shows the CPU architecture, and the features of the chip (the feature
block is similar to what you will find in a Xen fully virtualized domain
description).</p>
<p>The second block (in blue) indicates the paravirtualization support of the
Xen support, you will see the os_type of xen to indicate a paravirtual
kernel, then architecture information and potential features.</p>
<p>The third block (in green) gives similar information but when running a
32 bit OS fully virtualized with Xen using the hvm support.</p>
<p>This section is likely to be updated and augmented in the future, see <a href="https://www.redhat.com/archives/libvir-list/2007-March/msg00215.html">the
discussion</a> which led to the capabilities format in the mailing-list
archives.</p>
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<body>
<h1>Driver capabilities XML format</h1>
<p>As new virtualization engine support gets added to libvirt, and to handle
cases like QEmu supporting a variety of emulations, a query interface has
been added in 0.2.1 allowing to list the set of supported virtualization
capabilities on the host:</p>
<pre> char * virConnectGetCapabilities (virConnectPtr conn);</pre>
<p>The value returned is an XML document listing the virtualization
capabilities of the host and virtualization engine to which
<code>@conn</code> is connected. One can test it using <code>virsh</code>
command line tool command '<code>capabilities</code>', it dumps the XML
associated to the current connection. For example in the case of a 64 bits
machine with hardware virtualization capabilities enabled in the chip and
BIOS you will see</p>
<pre>&lt;capabilities&gt;
<span style="color: #E50000">&lt;host&gt;
&lt;cpu&gt;
&lt;arch&gt;x86_64&lt;/arch&gt;
&lt;features&gt;
&lt;vmx/&gt;
&lt;/features&gt;
&lt;/cpu&gt;
&lt;/host&gt;</span>
&lt;!-- xen-3.0-x86_64 --&gt;
<span style="color: #0000E5">&lt;guest&gt;
&lt;os_type&gt;xen&lt;/os_type&gt;
&lt;arch name="x86_64"&gt;
&lt;wordsize&gt;64&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib64/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
&lt;!-- hvm-3.0-x86_32 --&gt;
<span style="color: #00B200">&lt;guest&gt;
&lt;os_type&gt;hvm&lt;/os_type&gt;
&lt;arch name="i686"&gt;
&lt;wordsize&gt;32&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;machine&gt;pc&lt;/machine&gt;
&lt;machine&gt;isapc&lt;/machine&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
...
&lt;/capabilities&gt;</pre>
<p>The first block (in red) indicates the host hardware capabilities, currently
it is limited to the CPU properties but other information may be available,
it shows the CPU architecture, and the features of the chip (the feature
block is similar to what you will find in a Xen fully virtualized domain
description).</p>
<p>The second block (in blue) indicates the paravirtualization support of the
Xen support, you will see the os_type of xen to indicate a paravirtual
kernel, then architecture information and potential features.</p>
<p>The third block (in green) gives similar information but when running a
32 bit OS fully virtualized with Xen using the hvm support.</p>
<p>This section is likely to be updated and augmented in the future, see <a href="https://www.redhat.com/archives/libvir-list/2007-March/msg00215.html">the
discussion</a> which led to the capabilities format in the mailing-list
archives.</p>
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<ul><li>
<a href="#elements">Element and attribute overview</a>
<ul><li>
<a href="#elementsMetadata">General metadata</a>
</li><li>
<a href="#elementsOS">Operating system booting</a>
<ul><li>
<a href="#elementsOSBIOS">BIOS bootloader</a>
</li><li>
<a href="#elementsOSBootloader">Host bootloader</a>
</li><li>
<a href="#elementsOSKernel">Direct kernel boot</a>
</li></ul>
</li><li>
<a href="#elementsResources">Basic resources</a>
</li><li>
<a href="#elementsLifecycle">Lifecycle control</a>
</li><li>
<a href="#elementsFeatures">Hypervisor features</a>
</li><li>
<a href="#elementsTime">Time keeping</a>
</li><li>
<a href="#elementsDevices">Devices</a>
<ul><li>
<a href="#elementsDisks">Hard drives, floppy disks, CDROMs</a>
</li><li>
<a href="#elementsNICS">Network interfaces</a>
<ul><li>
<a href="#elementsNICSVirtual">Virtual network</a>
</li><li>
<a href="#elementsNICSBridge">Bridge to to LAN</a>
</li><li>
<a href="#elementsNICSSlirp">Userspace SLIRP stack</a>
</li><li>
<a href="#elementsNICSEthernet">Generic ethernet connection</a>
</li><li>
<a href="#elementsNICSMulticast">Multicast tunnel</a>
</li><li>
<a href="#elementsNICSTCP">TCP tunnel</a>
</li></ul>
</li><li>
<a href="#elementsInput">Input devices</a>
</li><li>
<a href="#elementsGraphics">Graphical framebuffers</a>
</li><li>
<a href="#elementsConsole">Consoles, serial &amp; parallel devices</a>
<ul><li>
<a href="#elementsCharSTDIO">Domain logfile</a>
</li><li>
<a href="#elementsCharFle">Device logfile</a>
</li><li>
<a href="#elementsCharVC">Virtual console</a>
</li><li>
<a href="#elementsCharNull">Null device</a>
</li><li>
<a href="#elementsCharPTY">Pseudo TTY</a>
</li><li>
<a href="#elementsCharHost">Host device proxy</a>
</li><li>
<a href="#elementsCharTCP">TCP client/server</a>
</li><li>
<a href="#elementsCharUDP">UDP network console</a>
</li><li>
<a href="#elementsCharUNIX">UNIX domain socket client/server</a>
</li></ul>
</li></ul>
</li></ul>
</li><li>
<a href="#examples">Example configs</a>
</li></ul>
<p>
This section describes the XML format used to represent domains, there are
variations on the format based on the kind of domains run and the options
used to launch them. For hypervisor specific details consult the
<a href="drivers.html">driver docs</a>
</p>
<h2>
<a name="elements" id="elements">Element and attribute overview</a>
</h2>
<p>
The root element required for all virtual machines is
named <code>domain</code>. It has two attributes, the
<code>type</code> specifies the hypervisor used for running
the domain. The allowed values are driver specific, but
include "xen", "kvm", "qemu", "lxc" and "kqemu". The
second attribute is <code>id</code> which is a unique
integer identifier for the running guest machine. Inactive
machines have no id value.
</p>
<h3>
<a name="elementsMetadata" id="elementsMetadata">General metadata</a>
</h3>
<pre>
&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
...</pre>
<dl><dt><code>name</code></dt><dd>The content of the <code>name</code> element provides
a short name for the virtual machine. This name should
consist only of alpha-numeric characters and is required
to be unique within the scope of a single host. It is
often used to form the filename for storing the persistent
configuration file. <span class="since">Since 0.0.1</span></dd><dt><code>uuid</code></dt><dd>The content of the <code>uuid</code> element provides
a globally unique identifier for the virtual machine.
The format must be RFC 4122 compliant, eg <code>3e3fce45-4f53-4fa7-bb32-11f34168b82b</code>.
If omitted when defining/creating a new machine, a random
UUID is generated. <span class="since">Since 0.0.1</span></dd></dl>
<h3>
<a name="elementsOS" id="elementsOS">Operating system booting</a>
</h3>
<p>
There are a number of different ways to boot virtual machines
each with their own pros and cons.
</p>
<h4>
<a name="elementsOSBIOS" id="elementsOSBIOS">BIOS bootloader</a>
</h4>
<p>
Booting via the BIOS is available for hypervisors supporting
full virtualization. In this case the BIOS has a boot order
priority (floppy, harddisk, cdrom, network) determining where
to obtain/find the boot image.
</p>
<pre>
...
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;boot dev='hd'/&gt;
&lt;/os&gt;
...</pre>
<dl><dt><code>type</code></dt><dd>The content of the <code>type</code> element specifies the
type of operating system to be booted in the virtual machine.
<code>hvm</code> indicates that the OS is one designed to run
on bare metal, so requires full virtualization. <code>linux</code>
(badly named!) refers to an OS that supports the Xen 3 hypervisor
guest ABI. There are also two optional attributes, <code>arch</code>
specifying the CPU architecture to virtualization, and <code>machine</code>
refering to the machine type. The <a href="formatcaps.html">Capabilities XML</a>
provides details on allowed values for these. <span class="since">Since 0.0.1</span></dd><dt><code>loader</code></dt><dd>The optional <code>loader</code> tag refers to a firmware blob
used to assist the domain creation process. At this time, it is
only needed by Xen fullyvirtualized domains. <span class="since">Since 0.1.0</span></dd><dt><code>boot</code></dt><dd>The <code>dev</code> attribute takes one of the values "fd", "hd",
"cdrom" or "network" and is used to specify the next boot device
to consider. The <code>boot</code> element can be repeated multiple
times to setup a priority list of boot devices to try in turn.
<span class="since">Since 0.1.3</span>
</dd></dl>
<h4>
<a name="elementsOSBootloader" id="elementsOSBootloader">Host bootloader</a>
</h4>
<p>
Hypervisors employing paravirtualization do not usually emulate
a BIOS, and instead the host is responsible to kicking off the
operating system boot. This may use a pseduo-bootloader in the
host to provide an interface to choose a kernel for the guest.
An example is <code>pygrub</code> with Xen.
</p>
<pre>
...
&lt;bootloader&gt;/usr/bin/pygrub&lt;/bootloader&gt;
&lt;bootloader_args&gt;--append single&lt;/bootloader_args&gt;
...</pre>
<dl><dt><code>bootloader</code></dt><dd>The content of the <code>bootloader</code> element provides
a fullyqualified path to the bootloader executable in the
host OS. This bootloader will be run to choose which kernel
to boot. The required output of the bootloader is dependant
on the hypervisor in use. <span class="since">Since 0.1.0</span></dd><dt><code>bootloader_args</code></dt><dd>The optional <code>bootloader_args</code> element allows
command line arguments to be passed to the bootloader.
<span class="since">Since 0.2.3</span>
</dd></dl>
<h4>
<a name="elementsOSKernel" id="elementsOSKernel">Direct kernel boot</a>
</h4>
<p>
When installing a new guest OS it is often useful to boot directly
from a kernel and initrd stored in the host OS, allowing command
line arguments to be passed directly to the installer. This capability
is usually available for both para and full virtualized guests.
</p>
<pre>
...
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;kernel&gt;/root/f8-i386-vmlinuz&lt;/kernel&gt;
&lt;initrd&gt;/root/f8-i386-initrd&lt;/initrd&gt;
&lt;cmdline&gt;console=ttyS0 ks=http://example.com/f8-i386/os/&lt;/cmdline&gt;
&lt;/os&gt;
...</pre>
<dl><dt><code>type</code></dt><dd>This element has the same semantics as described earlier in the
<a href="#elementsOSBIOS">BIOS boot section</a></dd><dt><code>loader</code></dt><dd>This element has the same semantics as described earlier in the
<a href="#elementsOSBIOS">BIOS boot section</a></dd><dt><code>kernel</code></dt><dd>The contents of this element specify the fully-qualified path
to the kernel image in the host OS.</dd><dt><code>initrd</code></dt><dd>The contents of this element specify the fully-qualified path
to the (optional) ramdisk image in the host OS.</dd><dt><code>cmdline</code></dt><dd>The contents of this element specify arguments to be passed to
the kernel (or installer) at boottime. This is often used to
specify an alternate primary console (eg serial port), or the
installation media source / kickstart file</dd></dl>
<h3>
<a name="elementsResources" id="elementsResources">Basic resources</a>
</h3>
<pre>
...
&lt;memory&gt;524288&lt;/memory&gt;
&lt;currentMemory&gt;524288&lt;/currentMemory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
...</pre>
<dl><dt><code>memory</code></dt><dd>The maximum allocation of memory for the guest at boot time.
The units for this value are bytes</dd><dt><code>currentMemory</code></dt><dd>The actual allocation of memory for the guest. This value
be less than the maximum allocation, to allow for ballooning
up the guests memory on the fly. If this is omitted, it defaults
to the same value as the <code>memory<code> element</code></code></dd><dt><code>vcpu</code></dt><dd>The content of this element defines the number of virtual
CPUs allocated for the guest OS.</dd></dl>
<h3>
<a name="elementsLifecycle" id="elementsLifecycle">Lifecycle control</a>
</h3>
<p>
It is sometimes neccessary to override the default actions taken
when a guest OS triggers a lifecycle operation. The following
collections of elements allow the actions to be specified. A
common use case is to force a reboot to be treated as a poweroff
when doing the initial OS installation. This allows the VM to be
re-configured for the first post-install bootup.
</p>
<pre>
...
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
...</pre>
<dl><dt><code>on_poweroff</code></dt><dd>The content of this element specifies the action to take when
the guest requests a poweroff.</dd><dt><code>on_reboot</code></dt><dd>The content of this element specifies the action to take when
the guest requests a reboot.</dd><dt><code>on_crash</code></dt><dd>The content of this element specifies the action to take when
the guest crashes.</dd></dl>
<p>
Each of these states allow for the same four possible actions.
</p>
<dl><dt><code>destroy</code></dt><dd>The domain will be terminated completely and all resources
released</dd><dt><code>restart</code></dt><dd>The domain will be terminated, and then restarted with
the same configuration</dd><dt><code>preserve</code></dt><dd>The domain will be terminated, and its resource preserved
to allow analysis.</dd><dt><code>rename-restart</code></dt><dd>The domain will be terminated, and then restarted with
a new name</dd></dl>
<h3>
<a name="elementsFeatures" id="elementsFeatures">Hypervisor features</a>
</h3>
<p>
Hypervisors may allow certain CPU / machine features to be
toggled on/off.
</p>
<pre>
...
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
...</pre>
<p>
All features are listed within the <code>features</code>
element, omitting a togglable feature tag turns it off.
The available features can be found by asking
for the <a href="formatcaps.html">capabilities XML</a>,
but a common set for fully virtualized domains are:
</p>
<dl><dt><code>pae</code></dt><dd>Physical address extension mode allows 32-bit guests
to address more than 4 GB of memory.</dd><dt><code>acpi</code></dt><dd>ACPI is useful for power management, for example, with
KVM guests it is required for graceful shutdown to work.
</dd></dl>
<h3>
<a name="elementsTime" id="elementsTime">Time keeping</a>
</h3>
<p>
The guest clock is typically initialized from the host clock.
Most operating systems expect the hardware clock to be kept
in UTC, and this is the default. Windows, however, expects
it to be in so called 'localtime'.
</p>
<pre>
...
&lt;clock sync="localtime"/&gt;
...</pre>
<dl><dt><code>clock</code></dt><dd>The <code>sync</code> attribute takes either "utc" or
"localtime" to specify how the guest clock is initialized
in relation to the host OS.
</dd></dl>
<h3>
<a name="elementsDevices" id="elementsDevices">Devices</a>
</h3>
<p>
The final set of XML elements are all used to descibe devices
provided to the guest domain. All devices occur as children
of the main <code>devices</code> element.
<span class="since">Since 0.1.3</span>
</p>
<pre>
...
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
...</pre>
<dl><dt><code>emulator</code></dt><dd>
The contents of the <code>emulator</code> element specify
the fully qualified path to the device model emulator binary.
The <a href="formatcaps.html">capabilities XML</a> specifies
the recommended default emulator to use for each particular
domain type / architecture combination.
</dd></dl>
<h4>
<a name="elementsDisks" id="elementsDisks">Hard drives, floppy disks, CDROMs</a>
</h4>
<p>
Any device that looks like a disk, be it a floppy, harddisk,
cdrom, or paravirtualized driver is specified via the <code>disk</code>
element.
</p>
<pre>
...
&lt;disk type='file'&gt;
&lt;driver name="tap" type="aio"&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda' bus='ide'/&gt;
&lt;/disk&gt;
...</pre>
<dl><dt><code>disk</code></dt><dd>The <code>disk</code> element is the main container for describing
disks. The <code>type</code> attribute is either "file" or "block"
and refers to the underlying source for the disk. The optional
<code>device</code> attribute indicates how the disk is to be exposed
to the guest OS. Possible values for this attribute are "floppy", "disk"
and "cdrom", defaulting to "disk".
<span class="since">Since 0.0.3; "device" attribute since 0.1.4</span></dd><dt><code>source</code></dt><dd>If the disk <code>type</code> is "file", then the <code>file</code> attribute
specifies the fully-qualified path to the file holding the disk. If the disk
<code>type</code> is "block", then the <code>dev</code> attribute specifies
the path to the host device to serve as the disk. <span class="since">Since 0.0.3</span></dd><dt><code>target</code></dt><dd>The <code>target</code> element controls the bus / device under which the
disk is exposed to the guest OS. The <code>dev</code> attribute indicates
the "logical" device name. The actual device name specified is not guarenteed to map to
the device name in the guest OS. Treat it as a device ordering hint.
The optional <code>bus</code> attribute specifies the type of disk device
to emulate; possible values are driver specific, with typical values being
"ide", "scsi", "virtio", "xen". If omitted, the bus type is inferred from
the style of the device name. eg, a device named 'sda' will typically be
exported using a SCSI bus.
<span class="since">Since 0.0.3; <code>bus</code> attribute since 0.4.3</span></dd><dt><code>driver</code></dt><dd>If the hypervisor supports multiple backend drivers, then the optional
<code>driver</code> element allows them to be selected. The <code>name</code>
attribute is the primary backend driver name, while the optional <code>type</code>
attribute provides the sub-type. <span class="since">Since 0.1.8</span>
</dd></dl>
<h4>
<a name="elementsNICS" id="elementsNICS">Network interfaces</a>
</h4>
<pre>
...
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
...</pre>
<h5>
<a name="elementsNICSVirtual" id="elementsNICSVirtual">Virtual network</a>
</h5>
<p>
<strong><em>
This is the recommended config for general guest connectivity on
hosts with dynamic / wireless networking configs
</em></strong>
</p>
<p>
Provides a virtual network using a bridge device in the host.
Depending on the virtual network configuration, the network may be
totally isolated, NAT'ing to an explicit network device, or NAT'ing to
the default route. DHCP and DNS are provided on the virtual network in
all cases and the IP range can be determined by examining the virtual
network config with '<code>virsh net-dumpxml [networkname]</code>'.
There is one virtual network called 'default' setup out
of the box which does NAT'ing to the default route and has an IP range of
<code>192.168.22.0/255.255.255.0</code>. Each guest will have an
associated tun device created with a name of vnetN, which can also be
overridden with the &lt;target&gt; element.
</p>
<pre>
...
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;/interface&gt;
...
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
...</pre>
<h5>
<a name="elementsNICSBridge" id="elementsNICSBridge">Bridge to to LAN</a>
</h5>
<p>
<strong><em>
This is the recommended config for general guest connectivity on
hosts with static wired networking configs
</em></strong>
</p>
<p>
Provides a bridge from the VM directly onto the LAN. This assumes
there is a bridge device on the host which has one or more of the hosts
physical NICs enslaved. The guest VM will have an associated tun device
created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. The tun device will be enslaved to the bridge.
The IP range / network configuration is whatever is used on the LAN. This
provides the guest VM full incoming &amp; outgoing net access just like a
physical machine.
</p>
<pre>
...
&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;/interface&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
...</pre>
<h5>
<a name="elementsNICSSlirp" id="elementsNICSSlirp">Userspace SLIRP stack</a>
</h5>
<p>
Provides a virtual LAN with NAT to the outside world. The virtual
network has DHCP &amp; DNS services and will give the guest VM addresses
starting from <code>10.0.2.15</code>. The default router will be
<code>10.0.2.2</code> and the DNS server will be <code>10.0.2.3</code>.
This networking is the only option for unprivileged users who need their
VMs to have outgoing access.
</p>
<pre>
...
&lt;interface type='user'/&gt;
...
&lt;interface type='user'&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
...</pre>
<h5>
<a name="elementsNICSEthernet" id="elementsNICSEthernet">Generic ethernet connection</a>
</h5>
<p>
Provides a means for the administrator to execute an arbitrary script
to connect the guest's network to the LAN. The guest will have a tun
device created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. After creating the tun device a shell script will
be run which is expected to do whatever host network integration is
required. By default this script is called /etc/qemu-ifup but can be
overridden.
</p>
<pre>
...
&lt;interface type='ethernet'/&gt;
...
&lt;interface type='ethernet'&gt;
&lt;target dev='vnet7'/&gt;
&lt;script path='/etc/qemu-ifup-mynet'/&gt;
&lt;/interface&gt;
...</pre>
<h5>
<a name="elementsNICSMulticast" id="elementsNICSMulticast">Multicast tunnel</a>
</h5>
<p>
A multicast group is setup to represent a virtual network. Any VMs
whose network devices are in the same multicast group can talk to each
other even across hosts. This mode is also available to unprivileged
users. There is no default DNS or DHCP support and no outgoing network
access. To provide outgoing network access, one of the VMs should have a
2nd NIC which is connected to one of the first 4 network types and do the
appropriate routing. The multicast protocol is compatible with that used
by user mode linux guests too. The source address used must be from the
multicast address block.
</p>
<pre>
...
&lt;interface type='mcast'&gt;
&lt;source address='230.0.0.1' port='5558'/&gt;
&lt;/interface&gt;
...</pre>
<h5>
<a name="elementsNICSTCP" id="elementsNICSTCP">TCP tunnel</a>
</h5>
<p>
A TCP client/server architecture provides a virtual network. One VM
provides the server end of the network, all other VMS are configured as
clients. All network traffic is routed between the VMs via the server.
This mode is also available to unprivileged users. There is no default
DNS or DHCP support and no outgoing network access. To provide outgoing
network access, one of the VMs should have a 2nd NIC which is connected
to one of the first 4 network types and do the appropriate routing.</p>
<pre>
...
&lt;interface type='server'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;
...
&lt;interface type='client'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;
...</pre>
<h4>
<a name="elementsInput" id="elementsInput">Input devices</a>
</h4>
<p>
Input devices allow interaction with the graphical framebuffer in the guest
virtual machine. When enabling the framebuffer, an input device is automatically
provided. It may be possible to add additional devices explicitly, for example,
to provide a graphics tablet for absolute cursor movement.
</p>
<pre>
...
&lt;input type='mouse' bus='usb'/&gt;
...</pre>
<dl><dt><code>input</code></dt><dd>The <code>input</code> element has one madatory attribute, the <code>type</code>
whose value can be either 'mouse' or 'tablet'. The latter provides absolute
cursor movement, while the former uses relative movement. The optional
<code>bus</code> attribute can be used to refine the exact device type.
It takes values "xen" (paravirtualized), "ps2" and "usb".</dd></dl>
<h4>
<a name="elementsGraphics" id="elementsGraphics">Graphical framebuffers</a>
</h4>
<p>
A graphics device allows for graphical interaction with the
guest OS. A guest will typically have either a framebuffer
or a text console configured to allow interaction with the
admin.
</p>
<pre>
...
&lt;graphics type='vnc' port='5904'/&gt;
...</pre>
<dl><dt><code>graphics</code></dt><dd>The <code>graphics</code> element has a mandatory <code>type</code>
attribute which takes the value "sdl" or "vnc". The former displays
a window on the host desktop, while the latter activates a VNC server.
If the latter is used the <code>port</code> attributes specifies the
TCP port number (with -1 indicating that it should be auto-allocated).
The <code>listen</code> attribute is an IP address for the server to
listen on. The <code>password</code> attribute provides a VNC password
in clear text.</dd></dl>
<h4>
<a name="elementsConsole" id="elementsConsole">Consoles, serial &amp; parallel devices</a>
</h4>
<p>
A character device provides a way to interact with the virtual machine.
Paravirtualized consoles, serial ports and parallel ports are all
classed as character devices and so represented using the same syntax.
</p>
<pre>
...
&lt;parallel type='pty'&gt;
&lt;source path='/dev/pts/2'/&gt;
&lt;target port='0'/&gt;
&lt;/parallel&gt;
&lt;serial type='pty'&gt;
&lt;source path='/dev/pts/3'/&gt;
&lt;target port='0'/&gt;
&lt;/serial&gt;
&lt;console type='pty'&gt;
&lt;source path='/dev/pts/4'/&gt;
&lt;target port='0'/&gt;
&lt;/console&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<dl><dt><code>parallel</code></dt><dd>Represents a parallel port</dd><dt><code>serial</code></dt><dd>Represents a serial port</dd><dt><code>console</code></dt><dd>Represents the primary console. This can be the paravirtualized
console with Xen guests, or duplicates the primary serial port
for fully virtualized guests without a paravirtualized console.</dd><dt><code>source</code></dt><dd>The attributes available for the <code>source</code> element
vary according to the <code>type</code> attribute on the parent
tag. Allowed variations will be described below</dd><dt><code>target</code></dt><dd>The port number of the character device is specified via the
<code>port</code> attribute, numbered starting from 1. There is
usually only one console device, and 0, 1 or 2 serial devices
or parallel devices.
</dd></dl>
<h5>
<a name="elementsCharSTDIO" id="elementsCharSTDIO">Domain logfile</a>
</h5>
<p>
This disables all input on the character device, and sends output
into the virtual machine's logfile
</p>
<pre>
...
&lt;console type='stdio'&gt;
&lt;target port='1'&gt;
&lt;/console&gt;
...</pre>
<h5>
<a name="elementsCharFle" id="elementsCharFle">Device logfile</a>
</h5>
<p>
A file is opened and all data sent to the character
device is written to the file.
</p>
<pre>
...
&lt;serial type="file"&gt;
&lt;source path="/var/log/vm/vm-serial.log"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5>
<a name="elementsCharVC" id="elementsCharVC">Virtual console</a>
</h5>
<p>
Connects the character device to the graphical framebuffer in
a virtual console. This is typically accessed via a special
hotkey sequence such as "ctrl+alt+3"
</p>
<pre>
...
&lt;serial type='vc'&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5>
<a name="elementsCharNull" id="elementsCharNull">Null device</a>
</h5>
<p>
Connects the character device to the void. No data is ever
provided to the input. All data written is discarded.
</p>
<pre>
...
&lt;serial type='null'&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5>
<a name="elementsCharPTY" id="elementsCharPTY">Pseudo TTY</a>
</h5>
<p>
A Pseudo TTY is allocated using /dev/ptmx. A suitable client
such as 'virsh console' can connect to interact with the
serial port locally.
</p>
<pre>
...
&lt;serial type="pty"&gt;
&lt;source path="/dev/pts/3"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<p>
NB special case if &lt;console type='pty'&gt;, then the TTY
path is also duplicated as an attribute tty='/dv/pts/3'
on the top level &lt;console&gt; tag. This provides compat
with existing syntax for &lt;console&gt; tags.
</p>
<h5>
<a name="elementsCharHost" id="elementsCharHost">Host device proxy</a>
</h5>
<p>
The character device is passed through to the underlying
physical character device. The device types must match,
eg the emulated serial port should only be connected to
a host serial port - dont connect a serial port to a parallel
port.
</p>
<pre>
...
&lt;serial type="dev"&gt;
&lt;source path="/dev/ttyS0"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5>
<a name="elementsCharTCP" id="elementsCharTCP">TCP client/server</a>
</h5>
<p>
The character device acts as a TCP client connecting to a
remote server, or as a server waiting for a client connection.
</p>
<pre>
...
&lt;serial type="tcp"&gt;
&lt;source mode="connect" host="0.0.0.0" service="2445"/&gt;
&lt;wiremode type="telnet"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5>
<a name="elementsCharUDP" id="elementsCharUDP">UDP network console</a>
</h5>
<p>
The character device acts as a UDP netconsole service,
sending and receiving packets. This is a lossy service.
</p>
<pre>
...
&lt;serial type="udp"&gt;
&lt;source mode="bind" host="0.0.0.0" service="2445"/&gt;
&lt;source mode="connect" host="0.0.0.0" service="2445"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5>
<a name="elementsCharUNIX" id="elementsCharUNIX">UNIX domain socket client/server</a>
</h5>
<p>
The character device acts as a UNIX domain socket server,
accepting connections from local clients.
</p>
<pre>
...
&lt;serial type="unix"&gt;
&lt;source mode="bind" path="/tmp/foo"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h2>
<a name="examples" id="examples">Example configs</a>
</h2>
<p>
Example configurations for each driver are provide on the
driver specific pages listed below
</p>
<ul><li><a href="drvxen.html#xmlconfig">Xen examples</a></li><li><a href="drvqemu.html#xmlconfig">QEMU/KVM examples</a></li></ul>
</div>
</div>
<div id="footer">
<p id="sponsor">
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
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<html>
<body>
<h1>Domain XML format</h1>
<ul id="toc"></ul>
<p>
This section describes the XML format used to represent domains, there are
variations on the format based on the kind of domains run and the options
used to launch them. For hypervisor specific details consult the
<a href="drivers.html">driver docs</a>
</p>
<h2><a name="elements">Element and attribute overview</a></h2>
<p>
The root element required for all virtual machines is
named <code>domain</code>. It has two attributes, the
<code>type</code> specifies the hypervisor used for running
the domain. The allowed values are driver specific, but
include "xen", "kvm", "qemu", "lxc" and "kqemu". The
second attribute is <code>id</code> which is a unique
integer identifier for the running guest machine. Inactive
machines have no id value.
</p>
<h3><a name="elementsMetadata">General metadata</a></h3>
<pre>
&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
...</pre>
<dl>
<dt><code>name</code></dt>
<dd>The content of the <code>name</code> element provides
a short name for the virtual machine. This name should
consist only of alpha-numeric characters and is required
to be unique within the scope of a single host. It is
often used to form the filename for storing the persistent
configuration file. <span class="since">Since 0.0.1</span></dd>
<dt><code>uuid</code></dt>
<dd>The content of the <code>uuid</code> element provides
a globally unique identifier for the virtual machine.
The format must be RFC 4122 compliant, eg <code>3e3fce45-4f53-4fa7-bb32-11f34168b82b</code>.
If omitted when defining/creating a new machine, a random
UUID is generated. <span class="since">Since 0.0.1</span></dd>
</dl>
<h3><a name="elementsOS">Operating system booting</a></h3>
<p>
There are a number of different ways to boot virtual machines
each with their own pros and cons.
</p>
<h4><a name="elementsOSBIOS">BIOS bootloader</a></h4>
<p>
Booting via the BIOS is available for hypervisors supporting
full virtualization. In this case the BIOS has a boot order
priority (floppy, harddisk, cdrom, network) determining where
to obtain/find the boot image.
</p>
<pre>
...
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;boot dev='hd'/&gt;
&lt;/os&gt;
...</pre>
<dl>
<dt><code>type</code></dt>
<dd>The content of the <code>type</code> element specifies the
type of operating system to be booted in the virtual machine.
<code>hvm</code> indicates that the OS is one designed to run
on bare metal, so requires full virtualization. <code>linux</code>
(badly named!) refers to an OS that supports the Xen 3 hypervisor
guest ABI. There are also two optional attributes, <code>arch</code>
specifying the CPU architecture to virtualization, and <code>machine</code>
refering to the machine type. The <a href="formatcaps.html">Capabilities XML</a>
provides details on allowed values for these. <span class="since">Since 0.0.1</span></dd>
<dt><code>loader</code></dt>
<dd>The optional <code>loader</code> tag refers to a firmware blob
used to assist the domain creation process. At this time, it is
only needed by Xen fullyvirtualized domains. <span class="since">Since 0.1.0</span></dd>
<dt><code>boot</code></dt>
<dd>The <code>dev</code> attribute takes one of the values "fd", "hd",
"cdrom" or "network" and is used to specify the next boot device
to consider. The <code>boot</code> element can be repeated multiple
times to setup a priority list of boot devices to try in turn.
<span class="since">Since 0.1.3</span>
</dd>
</dl>
<h4><a name="elementsOSBootloader">Host bootloader</a></h4>
<p>
Hypervisors employing paravirtualization do not usually emulate
a BIOS, and instead the host is responsible to kicking off the
operating system boot. This may use a pseduo-bootloader in the
host to provide an interface to choose a kernel for the guest.
An example is <code>pygrub</code> with Xen.
</p>
<pre>
...
&lt;bootloader&gt;/usr/bin/pygrub&lt;/bootloader&gt;
&lt;bootloader_args&gt;--append single&lt;/bootloader_args&gt;
...</pre>
<dl>
<dt><code>bootloader</code></dt>
<dd>The content of the <code>bootloader</code> element provides
a fullyqualified path to the bootloader executable in the
host OS. This bootloader will be run to choose which kernel
to boot. The required output of the bootloader is dependant
on the hypervisor in use. <span class="since">Since 0.1.0</span></dd>
<dt><code>bootloader_args</code></dt>
<dd>The optional <code>bootloader_args</code> element allows
command line arguments to be passed to the bootloader.
<span class="since">Since 0.2.3</span>
</dd>
</dl>
<h4><a name="elementsOSKernel">Direct kernel boot</a></h4>
<p>
When installing a new guest OS it is often useful to boot directly
from a kernel and initrd stored in the host OS, allowing command
line arguments to be passed directly to the installer. This capability
is usually available for both para and full virtualized guests.
</p>
<pre>
...
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;kernel&gt;/root/f8-i386-vmlinuz&lt;/kernel&gt;
&lt;initrd&gt;/root/f8-i386-initrd&lt;/initrd&gt;
&lt;cmdline&gt;console=ttyS0 ks=http://example.com/f8-i386/os/&lt;/cmdline&gt;
&lt;/os&gt;
...</pre>
<dl>
<dt><code>type</code></dt>
<dd>This element has the same semantics as described earlier in the
<a href="#elementsOSBIOS">BIOS boot section</a></dd>
<dt><code>loader</code></dt>
<dd>This element has the same semantics as described earlier in the
<a href="#elementsOSBIOS">BIOS boot section</a></dd>
<dt><code>kernel</code></dt>
<dd>The contents of this element specify the fully-qualified path
to the kernel image in the host OS.</dd>
<dt><code>initrd</code></dt>
<dd>The contents of this element specify the fully-qualified path
to the (optional) ramdisk image in the host OS.</dd>
<dt><code>cmdline</code></dt>
<dd>The contents of this element specify arguments to be passed to
the kernel (or installer) at boottime. This is often used to
specify an alternate primary console (eg serial port), or the
installation media source / kickstart file</dd>
</dl>
<h3><a name="elementsResources">Basic resources</a></h3>
<pre>
...
&lt;memory&gt;524288&lt;/memory&gt;
&lt;currentMemory&gt;524288&lt;/currentMemory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
...</pre>
<dl>
<dt><code>memory</code></dt>
<dd>The maximum allocation of memory for the guest at boot time.
The units for this value are bytes</dd>
<dt><code>currentMemory</code></dt>
<dd>The actual allocation of memory for the guest. This value
be less than the maximum allocation, to allow for ballooning
up the guests memory on the fly. If this is omitted, it defaults
to the same value as the <code>memory<code> element</dd>
<dt><code>vcpu</code></dt>
<dd>The content of this element defines the number of virtual
CPUs allocated for the guest OS.</dd>
</dl>
<h3><a name="elementsLifecycle">Lifecycle control</a></h3>
<p>
It is sometimes neccessary to override the default actions taken
when a guest OS triggers a lifecycle operation. The following
collections of elements allow the actions to be specified. A
common use case is to force a reboot to be treated as a poweroff
when doing the initial OS installation. This allows the VM to be
re-configured for the first post-install bootup.
</p>
<pre>
...
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
...</pre>
<dl>
<dt><code>on_poweroff</code></dt>
<dd>The content of this element specifies the action to take when
the guest requests a poweroff.</dd>
<dt><code>on_reboot</code></dt>
<dd>The content of this element specifies the action to take when
the guest requests a reboot.</dd>
<dt><code>on_crash</code></dt>
<dd>The content of this element specifies the action to take when
the guest crashes.</dd>
</dl>
<p>
Each of these states allow for the same four possible actions.
</p>
<dl>
<dt><code>destroy</code></dt>
<dd>The domain will be terminated completely and all resources
released</dd>
<dt><code>restart</code></dt>
<dd>The domain will be terminated, and then restarted with
the same configuration</dd>
<dt><code>preserve</code></dt>
<dd>The domain will be terminated, and its resource preserved
to allow analysis.</dd>
<dt><code>rename-restart</code></dt>
<dd>The domain will be terminated, and then restarted with
a new name</dd>
</dl>
<h3><a name="elementsFeatures">Hypervisor features</a></h3>
<p>
Hypervisors may allow certain CPU / machine features to be
toggled on/off.
</p>
<pre>
...
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
...</pre>
<p>
All features are listed within the <code>features</code>
element, omitting a togglable feature tag turns it off.
The available features can be found by asking
for the <a href="formatcaps.html">capabilities XML</a>,
but a common set for fully virtualized domains are:
</p>
<dl>
<dt><code>pae</code></dt>
<dd>Physical address extension mode allows 32-bit guests
to address more than 4 GB of memory.</dd>
<dt><code>acpi</code></dt>
<dd>ACPI is useful for power management, for example, with
KVM guests it is required for graceful shutdown to work.
</dd>
</dl>
<h3><a name="elementsTime">Time keeping</a></h3>
<p>
The guest clock is typically initialized from the host clock.
Most operating systems expect the hardware clock to be kept
in UTC, and this is the default. Windows, however, expects
it to be in so called 'localtime'.
</p>
<pre>
...
&lt;clock sync="localtime"/&gt;
...</pre>
<dl>
<dt><code>clock</code></dt>
<dd>The <code>sync</code> attribute takes either "utc" or
"localtime" to specify how the guest clock is initialized
in relation to the host OS.
</dd>
</dl>
<h3><a name="elementsDevices">Devices</a></h3>
<p>
The final set of XML elements are all used to descibe devices
provided to the guest domain. All devices occur as children
of the main <code>devices</code> element.
<span class="since">Since 0.1.3</span>
</p>
<pre>
...
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
...</pre>
<dl>
<dt><code>emulator</code></dt>
<dd>
The contents of the <code>emulator</code> element specify
the fully qualified path to the device model emulator binary.
The <a href="formatcaps.html">capabilities XML</a> specifies
the recommended default emulator to use for each particular
domain type / architecture combination.
</dd>
</dl>
<h4><a name="elementsDisks">Hard drives, floppy disks, CDROMs</a></h4>
<p>
Any device that looks like a disk, be it a floppy, harddisk,
cdrom, or paravirtualized driver is specified via the <code>disk</code>
element.
</p>
<pre>
...
&lt;disk type='file'&gt;
&lt;driver name="tap" type="aio"&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda' bus='ide'/&gt;
&lt;/disk&gt;
...</pre>
<dl>
<dt><code>disk</code></dt>
<dd>The <code>disk</code> element is the main container for describing
disks. The <code>type</code> attribute is either "file" or "block"
and refers to the underlying source for the disk. The optional
<code>device</code> attribute indicates how the disk is to be exposed
to the guest OS. Possible values for this attribute are "floppy", "disk"
and "cdrom", defaulting to "disk".
<span class="since">Since 0.0.3; "device" attribute since 0.1.4</span></dd>
<dt><code>source</code></dt>
<dd>If the disk <code>type</code> is "file", then the <code>file</code> attribute
specifies the fully-qualified path to the file holding the disk. If the disk
<code>type</code> is "block", then the <code>dev</code> attribute specifies
the path to the host device to serve as the disk. <span class="since">Since 0.0.3</span></dd>
<dt><code>target</code></dt>
<dd>The <code>target</code> element controls the bus / device under which the
disk is exposed to the guest OS. The <code>dev</code> attribute indicates
the "logical" device name. The actual device name specified is not guarenteed to map to
the device name in the guest OS. Treat it as a device ordering hint.
The optional <code>bus</code> attribute specifies the type of disk device
to emulate; possible values are driver specific, with typical values being
"ide", "scsi", "virtio", "xen". If omitted, the bus type is inferred from
the style of the device name. eg, a device named 'sda' will typically be
exported using a SCSI bus.
<span class="since">Since 0.0.3; <code>bus</code> attribute since 0.4.3</span></dd>
<dt><code>driver</code></dt>
<dd>If the hypervisor supports multiple backend drivers, then the optional
<code>driver</code> element allows them to be selected. The <code>name</code>
attribute is the primary backend driver name, while the optional <code>type</code>
attribute provides the sub-type. <span class="since">Since 0.1.8</span>
</dd>
</dl>
<h4><a name="elementsNICS">Network interfaces</a></h4>
<pre>
...
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
...</pre>
<h5><a name="elementsNICSVirtual">Virtual network</a></h5>
<p>
<strong><em>
This is the recommended config for general guest connectivity on
hosts with dynamic / wireless networking configs
</em></strong>
</p>
<p>
Provides a virtual network using a bridge device in the host.
Depending on the virtual network configuration, the network may be
totally isolated, NAT'ing to an explicit network device, or NAT'ing to
the default route. DHCP and DNS are provided on the virtual network in
all cases and the IP range can be determined by examining the virtual
network config with '<code>virsh net-dumpxml [networkname]</code>'.
There is one virtual network called 'default' setup out
of the box which does NAT'ing to the default route and has an IP range of
<code>192.168.22.0/255.255.255.0</code>. Each guest will have an
associated tun device created with a name of vnetN, which can also be
overridden with the &lt;target&gt; element.
</p>
<pre>
...
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;/interface&gt;
...
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
...</pre>
<h5><a name="elementsNICSBridge">Bridge to to LAN</a></h5>
<p>
<strong><em>
This is the recommended config for general guest connectivity on
hosts with static wired networking configs
</em></strong>
</p>
<p>
Provides a bridge from the VM directly onto the LAN. This assumes
there is a bridge device on the host which has one or more of the hosts
physical NICs enslaved. The guest VM will have an associated tun device
created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. The tun device will be enslaved to the bridge.
The IP range / network configuration is whatever is used on the LAN. This
provides the guest VM full incoming &amp; outgoing net access just like a
physical machine.
</p>
<pre>
...
&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;/interface&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
...</pre>
<h5><a name="elementsNICSSlirp">Userspace SLIRP stack</a></h5>
<p>
Provides a virtual LAN with NAT to the outside world. The virtual
network has DHCP &amp; DNS services and will give the guest VM addresses
starting from <code>10.0.2.15</code>. The default router will be
<code>10.0.2.2</code> and the DNS server will be <code>10.0.2.3</code>.
This networking is the only option for unprivileged users who need their
VMs to have outgoing access.
</p>
<pre>
...
&lt;interface type='user'/&gt;
...
&lt;interface type='user'&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
...</pre>
<h5><a name="elementsNICSEthernet">Generic ethernet connection</a></h5>
<p>
Provides a means for the administrator to execute an arbitrary script
to connect the guest's network to the LAN. The guest will have a tun
device created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. After creating the tun device a shell script will
be run which is expected to do whatever host network integration is
required. By default this script is called /etc/qemu-ifup but can be
overridden.
</p>
<pre>
...
&lt;interface type='ethernet'/&gt;
...
&lt;interface type='ethernet'&gt;
&lt;target dev='vnet7'/&gt;
&lt;script path='/etc/qemu-ifup-mynet'/&gt;
&lt;/interface&gt;
...</pre>
<h5><a name="elementsNICSMulticast">Multicast tunnel</a></h5>
<p>
A multicast group is setup to represent a virtual network. Any VMs
whose network devices are in the same multicast group can talk to each
other even across hosts. This mode is also available to unprivileged
users. There is no default DNS or DHCP support and no outgoing network
access. To provide outgoing network access, one of the VMs should have a
2nd NIC which is connected to one of the first 4 network types and do the
appropriate routing. The multicast protocol is compatible with that used
by user mode linux guests too. The source address used must be from the
multicast address block.
</p>
<pre>
...
&lt;interface type='mcast'&gt;
&lt;source address='230.0.0.1' port='5558'/&gt;
&lt;/interface&gt;
...</pre>
<h5><a name="elementsNICSTCP">TCP tunnel</a></h5>
<p>
A TCP client/server architecture provides a virtual network. One VM
provides the server end of the network, all other VMS are configured as
clients. All network traffic is routed between the VMs via the server.
This mode is also available to unprivileged users. There is no default
DNS or DHCP support and no outgoing network access. To provide outgoing
network access, one of the VMs should have a 2nd NIC which is connected
to one of the first 4 network types and do the appropriate routing.</p>
<pre>
...
&lt;interface type='server'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;
...
&lt;interface type='client'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;
...</pre>
<h4><a name="elementsInput">Input devices</a></h4>
<p>
Input devices allow interaction with the graphical framebuffer in the guest
virtual machine. When enabling the framebuffer, an input device is automatically
provided. It may be possible to add additional devices explicitly, for example,
to provide a graphics tablet for absolute cursor movement.
</p>
<pre>
...
&lt;input type='mouse' bus='usb'/&gt;
...</pre>
<dl>
<dt><code>input</code></dt>
<dd>The <code>input</code> element has one madatory attribute, the <code>type</code>
whose value can be either 'mouse' or 'tablet'. The latter provides absolute
cursor movement, while the former uses relative movement. The optional
<code>bus</code> attribute can be used to refine the exact device type.
It takes values "xen" (paravirtualized), "ps2" and "usb".</dd>
</dl>
<h4><a name="elementsGraphics">Graphical framebuffers</a></h4>
<p>
A graphics device allows for graphical interaction with the
guest OS. A guest will typically have either a framebuffer
or a text console configured to allow interaction with the
admin.
</p>
<pre>
...
&lt;graphics type='vnc' port='5904'/&gt;
...</pre>
<dl>
<dt><code>graphics</code></dt>
<dd>The <code>graphics</code> element has a mandatory <code>type</code>
attribute which takes the value "sdl" or "vnc". The former displays
a window on the host desktop, while the latter activates a VNC server.
If the latter is used the <code>port</code> attributes specifies the
TCP port number (with -1 indicating that it should be auto-allocated).
The <code>listen</code> attribute is an IP address for the server to
listen on. The <code>password</code> attribute provides a VNC password
in clear text.</dd>
</dl>
<h4><a name="elementsConsole">Consoles, serial &amp; parallel devices</a></h4>
<p>
A character device provides a way to interact with the virtual machine.
Paravirtualized consoles, serial ports and parallel ports are all
classed as character devices and so represented using the same syntax.
</p>
<pre>
...
&lt;parallel type='pty'&gt;
&lt;source path='/dev/pts/2'/&gt;
&lt;target port='0'/&gt;
&lt;/parallel&gt;
&lt;serial type='pty'&gt;
&lt;source path='/dev/pts/3'/&gt;
&lt;target port='0'/&gt;
&lt;/serial&gt;
&lt;console type='pty'&gt;
&lt;source path='/dev/pts/4'/&gt;
&lt;target port='0'/&gt;
&lt;/console&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<dl>
<dt><code>parallel</code></dt>
<dd>Represents a parallel port</dd>
<dt><code>serial</code></dt>
<dd>Represents a serial port</dd>
<dt><code>console</code></dt>
<dd>Represents the primary console. This can be the paravirtualized
console with Xen guests, or duplicates the primary serial port
for fully virtualized guests without a paravirtualized console.</dd>
<dt><code>source</code></dt>
<dd>The attributes available for the <code>source</code> element
vary according to the <code>type</code> attribute on the parent
tag. Allowed variations will be described below</dd>
<dt><code>target</code></dt>
<dd>The port number of the character device is specified via the
<code>port</code> attribute, numbered starting from 1. There is
usually only one console device, and 0, 1 or 2 serial devices
or parallel devices.
</dl>
<h5><a name="elementsCharSTDIO">Domain logfile</a></h5>
<p>
This disables all input on the character device, and sends output
into the virtual machine's logfile
</p>
<pre>
...
&lt;console type='stdio'&gt;
&lt;target port='1'&gt;
&lt;/console&gt;
...</pre>
<h5><a name="elementsCharFle">Device logfile</a></h5>
<p>
A file is opened and all data sent to the character
device is written to the file.
</p>
<pre>
...
&lt;serial type="file"&gt;
&lt;source path="/var/log/vm/vm-serial.log"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5><a name="elementsCharVC">Virtual console</a></h5>
<p>
Connects the character device to the graphical framebuffer in
a virtual console. This is typically accessed via a special
hotkey sequence such as "ctrl+alt+3"
</p>
<pre>
...
&lt;serial type='vc'&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5><a name="elementsCharNull">Null device</a></h5>
<p>
Connects the character device to the void. No data is ever
provided to the input. All data written is discarded.
</p>
<pre>
...
&lt;serial type='null'&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5><a name="elementsCharPTY">Pseudo TTY</a></h5>
<p>
A Pseudo TTY is allocated using /dev/ptmx. A suitable client
such as 'virsh console' can connect to interact with the
serial port locally.
</p>
<pre>
...
&lt;serial type="pty"&gt;
&lt;source path="/dev/pts/3"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<p>
NB special case if &lt;console type='pty'&gt;, then the TTY
path is also duplicated as an attribute tty='/dv/pts/3'
on the top level &lt;console&gt; tag. This provides compat
with existing syntax for &lt;console&gt; tags.
</p>
<h5><a name="elementsCharHost">Host device proxy</a></h5>
<p>
The character device is passed through to the underlying
physical character device. The device types must match,
eg the emulated serial port should only be connected to
a host serial port - dont connect a serial port to a parallel
port.
</p>
<pre>
...
&lt;serial type="dev"&gt;
&lt;source path="/dev/ttyS0"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5><a name="elementsCharTCP">TCP client/server</a></h5>
<p>
The character device acts as a TCP client connecting to a
remote server, or as a server waiting for a client connection.
</p>
<pre>
...
&lt;serial type="tcp"&gt;
&lt;source mode="connect" host="0.0.0.0" service="2445"/&gt;
&lt;wiremode type="telnet"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5><a name="elementsCharUDP">UDP network console</a></h5>
<p>
The character device acts as a UDP netconsole service,
sending and receiving packets. This is a lossy service.
</p>
<pre>
...
&lt;serial type="udp"&gt;
&lt;source mode="bind" host="0.0.0.0" service="2445"/&gt;
&lt;source mode="connect" host="0.0.0.0" service="2445"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h5><a name="elementsCharUNIX">UNIX domain socket client/server</a></h5>
<p>
The character device acts as a UNIX domain socket server,
accepting connections from local clients.
</p>
<pre>
...
&lt;serial type="unix"&gt;
&lt;source mode="bind" path="/tmp/foo"/&gt;
&lt;target port="1"/&gt;
&lt;/serial&gt;
...</pre>
<h2><a name="examples">Example configs</a></h2>
<p>
Example configurations for each driver are provide on the
driver specific pages listed below
</p>
<ul>
<li><a href="drvxen.html#xmlconfig">Xen examples</a></li>
<li><a href="drvqemu.html#xmlconfig">QEMU/KVM examples</a></li>
</ul>
</body>
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<div id="content">
<h1>Network XML format</h1>
<ul>
<li>
<a href="#elements">Element and attribute overview</a>
<ul>
<li>
<a href="#elementsMetadata">General metadata</a>
</li>
<li>
<a href="#elementsConnect">Connectivity</a>
</li>
<li>
<a href="#elementsAddress">Addressing</a>
</li>
</ul>
</li>
<li>
<a href="#examples">Example configuration</a>
<ul>
<li>
<a href="#examplesNAT">NAT based network</a>
</li>
<li>
<a href="#examplesRoute">Routed network config</a>
</li>
<li>
<a href="#examplesPrivate">Isolated network config</a>
</li>
</ul>
</li>
</ul>
<p>
This page provides an introduction to the network XML format. For background
information on the concepts referred to here, consult the <a href="archnetwork.html">network driver architecture</a>
page.
</p>
<h2>
<a name="elements" id="elements">Element and attribute overview</a>
</h2>
<p>
The root element required for all virtual networks is
named <code>network</code> and has no attributes.
The network XML format is available <span class="since">since 0.3.0</span>
</p>
<h3>
<a name="elementsMetadata" id="elementsMetadata">General metadata</a>
</h3>
<p>
The first elements provide basic metadata about the virtual
network.
</p>
<pre>
&lt;network&gt;
&lt;name&gt;default&lt;/name&gt;
&lt;uuid&gt;3e3fce45-4f53-4fa7-bb32-11f34168b82b&lt;/uuid&gt;
...</pre>
<dl>
<dt>
<code>name</code>
</dt>
<dd>The content of the <code>name</code> element provides
a short name for the virtual network. This name should
consist only of alpha-numeric characters and is required
to be unique within the scope of a single host. It is
used to form the filename for storing the persistent
configuration file. <span class="since">Since 0.3.0</span></dd>
<dt>
<code>uuid</code>
</dt>
<dd>The content of the <code>uuid</code> element provides
a globally unique identifier for the virtual network.
The format must be RFC 4122 compliant, eg <code>3e3fce45-4f53-4fa7-bb32-11f34168b82b</code>.
If omitted when defining/creating a new network, a random
UUID is generated. <span class="since">Since 0.3.0</span></dd>
</dl>
<h3>
<a name="elementsConnect" id="elementsConnect">Connectivity</a>
</h3>
<p>
The next set of elements control how a virtual network is
provided connectivity to the physical LAN (if at all).
</p>
<pre>
...
&lt;bridge name="virbr0" /&gt;
&lt;forward mode="nat" dev="eth0"/&gt;
...</pre>
<dl>
<dt>
<code>bridge</code>
</dt>
<dd>The <code>name</code> attribute on the <code>bridge</code> element
defines the name of a bridge device which will be used to construct
the virtual network. The virtual machines will be connected to this
bridge device allowing them to talk to each other. The bridge device
may also be connected to the LAN. It is recommended that bridge
device names started with the prefix <code>vir</code>, but the name
<code>virbr0</code> is reserved for the "default" virtual network.
This element should always be provided when defining a new network.
<span class="since">Since 0.3.0</span>
</dd>
<dt>
<code>forward</code>
</dt>
<dd>Inclusion of the <code>forward</code> element indicates that
the virtual network is to be connected to the physical LAN. If
no attributes are set, NAT forwarding will be used for connectivity.
Firewall rules will allow forwarding to any other network device whether
ethernet, wireless, dialup, or VPN. If the <code>dev</code> attribute
is set, the firewall rules will restrict forwarding to the named
device only. If the <code>mode</code> attribute is set to <code>route</code>
then the traffic will not have NAT applied. This presumes that the
local LAN router has suitable routing table entries to return traffic
to this host. <span class="since">Since 0.3.0; 'mode' attribute since
0.4.2</span></dd>
</dl>
<h3>
<a name="elementsAddress" id="elementsAddress">Addressing</a>
</h3>
<p>
The final set of elements define the IPv4 address range available,
and optionally enable DHCP sevices.
</p>
<pre>
...
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<dl>
<dt>
<code>ip</code>
</dt>
<dd>The <code>address</code> attribute defines an IPv4 address in
dotted-decimal format, that will be configured on the bridge
device associated with the virtual network. To the guests this
address will be their default route. The <code>netmask</code>
attribute defines the significant bits of the network address,
again specified in dotted-decimal format. <span class="since">Since 0.3.0</span>
</dd>
<dt>
<code>dhcp</code>
</dt>
<dd>Immediately within the <code>ip</code> element there is an
optional <code>dhcp</code> element. The presence of this element
enables DHCP services on the virtual network. It will further
contain one or more <code>range</code> elements.
<span class="since">Since 0.3.0</span>
</dd>
<dt>
<code>range</code>
</dt>
<dd>The <code>start</code> and <code>end</code> attributes on the
<code>range</code> element specify the boundaries of a pool of
IPv4 addresses to be provided to DHCP clients. These two addresses
must lie within the scope of the network defined on the parent
<code>ip</code> element. <span class="since">Since 0.3.0</span>
</dd>
</dl>
<h2>
<a name="examples" id="examples">Example configuration</a>
</h2>
<h3>
<a name="examplesNAT" id="examplesNAT">NAT based network</a>
</h3>
<p>
This example is the so called "default" virtual network. It is
provided and enabled out-of-the-box for all libvirt installations.
This is a configuration that allows guest OS to get outbound
connectivity regardless of whether the host uses ethernet, wireless,
dialup, or VPN networking without requiring any specific admin
configuration. In the absence of host networking, it at least allows
guests to talk directly to each other.
</p>
<pre>
&lt;network&gt;
&lt;name&gt;default&lt;/name&gt;
&lt;bridge name="virbr0" /&gt;
&lt;forward type="nat"/&gt;
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<h3>
<a name="examplesRoute" id="examplesRoute">Routed network config</a>
</h3>
<p>
This is a variant on the default network which routes traffic
from the virtual network to the LAN without applying any NAT.
It requires that the IP address range be pre-configured in the
routing tables of the router on the host network. This example
further specifies that guest traffic may only go out via the
<code>eth1</code> host network device.
</p>
<pre>
&lt;network&gt;
&lt;name&gt;local&lt;/name&gt;
&lt;bridge name="virbr1" /&gt;
&lt;forward type="route" dev="eth1"/&gt;
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<h3>
<a name="examplesPrivate" id="examplesPrivate">Isolated network config</a>
</h3>
<p>
This variant provides a completely isolated private network
for guests. The guests can talk to each other, and the host
OS, but cannot reach any other machines on the LAN, due to
the omission of the <code>forward</code> element in the XML
description.
</p>
<pre>
&lt;network&gt;
&lt;name&gt;private&lt;/name&gt;
&lt;bridge name="virbr2" /&gt;
&lt;ip address="192.168.152.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.152.2" end="192.168.152.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
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<html>
<body>
<h1>Network XML format</h1>
<ul id="toc">
</ul>
<p>
This page provides an introduction to the network XML format. For background
information on the concepts referred to here, consult the <a href="archnetwork.html">network driver architecture</a>
page.
</p>
<h2><a name="elements">Element and attribute overview</a></h2>
<p>
The root element required for all virtual networks is
named <code>network</code> and has no attributes.
The network XML format is available <span class="since">since 0.3.0</span>
</p>
<h3><a name="elementsMetadata">General metadata</a></h3>
<p>
The first elements provide basic metadata about the virtual
network.
</p>
<pre>
&lt;network&gt;
&lt;name&gt;default&lt;/name&gt;
&lt;uuid&gt;3e3fce45-4f53-4fa7-bb32-11f34168b82b&lt;/uuid&gt;
...</pre>
<dl>
<dt><code>name</code></dt>
<dd>The content of the <code>name</code> element provides
a short name for the virtual network. This name should
consist only of alpha-numeric characters and is required
to be unique within the scope of a single host. It is
used to form the filename for storing the persistent
configuration file. <span class="since">Since 0.3.0</span></dd>
<dt><code>uuid</code></dt>
<dd>The content of the <code>uuid</code> element provides
a globally unique identifier for the virtual network.
The format must be RFC 4122 compliant, eg <code>3e3fce45-4f53-4fa7-bb32-11f34168b82b</code>.
If omitted when defining/creating a new network, a random
UUID is generated. <span class="since">Since 0.3.0</span></dd>
</dl>
<h3><a name="elementsConnect">Connectivity</a></h3>
<p>
The next set of elements control how a virtual network is
provided connectivity to the physical LAN (if at all).
</p>
<pre>
...
&lt;bridge name="virbr0" /&gt;
&lt;forward mode="nat" dev="eth0"/&gt;
...</pre>
<dl>
<dt><code>bridge</code></dt>
<dd>The <code>name</code> attribute on the <code>bridge</code> element
defines the name of a bridge device which will be used to construct
the virtual network. The virtual machines will be connected to this
bridge device allowing them to talk to each other. The bridge device
may also be connected to the LAN. It is recommended that bridge
device names started with the prefix <code>vir</code>, but the name
<code>virbr0</code> is reserved for the "default" virtual network.
This element should always be provided when defining a new network.
<span class="since">Since 0.3.0</span>
</dd>
<dt><code>forward</code></dt>
<dd>Inclusion of the <code>forward</code> element indicates that
the virtual network is to be connected to the physical LAN. If
no attributes are set, NAT forwarding will be used for connectivity.
Firewall rules will allow forwarding to any other network device whether
ethernet, wireless, dialup, or VPN. If the <code>dev</code> attribute
is set, the firewall rules will restrict forwarding to the named
device only. If the <code>mode</code> attribute is set to <code>route</code>
then the traffic will not have NAT applied. This presumes that the
local LAN router has suitable routing table entries to return traffic
to this host. <span class="since">Since 0.3.0; 'mode' attribute since
0.4.2</span></dd>
</dl>
<h3><a name="elementsAddress">Addressing</a></h3>
<p>
The final set of elements define the IPv4 address range available,
and optionally enable DHCP sevices.
</p>
<pre>
...
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<dl>
<dt><code>ip</code></dt>
<dd>The <code>address</code> attribute defines an IPv4 address in
dotted-decimal format, that will be configured on the bridge
device associated with the virtual network. To the guests this
address will be their default route. The <code>netmask</code>
attribute defines the significant bits of the network address,
again specified in dotted-decimal format. <span class="since">Since 0.3.0</span>
</dd>
<dt><code>dhcp</code></dt>
<dd>Immediately within the <code>ip</code> element there is an
optional <code>dhcp</code> element. The presence of this element
enables DHCP services on the virtual network. It will further
contain one or more <code>range</code> elements.
<span class="since">Since 0.3.0</span>
</dd>
<dt><code>range</code></dt>
<dd>The <code>start</code> and <code>end</code> attributes on the
<code>range</code> element specify the boundaries of a pool of
IPv4 addresses to be provided to DHCP clients. These two addresses
must lie within the scope of the network defined on the parent
<code>ip</code> element. <span class="since">Since 0.3.0</span>
</dd>
</dl>
<h2><a name="examples">Example configuration</a></h2>
<h3><a name="examplesNAT">NAT based network</a></h3>
<p>
This example is the so called "default" virtual network. It is
provided and enabled out-of-the-box for all libvirt installations.
This is a configuration that allows guest OS to get outbound
connectivity regardless of whether the host uses ethernet, wireless,
dialup, or VPN networking without requiring any specific admin
configuration. In the absence of host networking, it at least allows
guests to talk directly to each other.
</p>
<pre>
&lt;network&gt;
&lt;name&gt;default&lt;/name&gt;
&lt;bridge name="virbr0" /&gt;
&lt;forward type="nat"/&gt;
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<h3><a name="examplesRoute">Routed network config</a></h3>
<p>
This is a variant on the default network which routes traffic
from the virtual network to the LAN without applying any NAT.
It requires that the IP address range be pre-configured in the
routing tables of the router on the host network. This example
further specifies that guest traffic may only go out via the
<code>eth1</code> host network device.
</p>
<pre>
&lt;network&gt;
&lt;name&gt;local&lt;/name&gt;
&lt;bridge name="virbr1" /&gt;
&lt;forward type="route" dev="eth1"/&gt;
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<h3><a name="examplesPrivate">Isolated network config</a></h3>
<p>
This variant provides a completely isolated private network
for guests. The guests can talk to each other, and the host
OS, but cannot reach any other machines on the LAN, due to
the omission of the <code>forward</code> element in the XML
description.
</p>
<pre>
&lt;network&gt;
&lt;name&gt;private&lt;/name&gt;
&lt;bridge name="virbr2" /&gt;
&lt;ip address="192.168.152.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.152.2" end="192.168.152.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
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<h1>Storage pool and volume XML format</h1>
<ul><li>
<a href="#StoragePool">Storage pool XML</a>
<ul><li>
<a href="#StoragePoolFirst">General metadata</a>
</li><li>
<a href="#StoragePoolSource">Source elements</a>
</li><li>
<a href="#StoragePoolTarget">Target elements</a>
</li><li>
<a href="#StoragePoolExtents">Device extents</a>
</li></ul>
</li><li>
<a href="#StorageVol">Storage volume XML</a>
<ul><li>
<a href="#StorageVolFirst">General metadata</a>
</li><li>
<a href="#StorageVolTarget">Target elements</a>
</li></ul>
</li><li>
<a href="#examples">Example configuration</a>
<ul><li>
<a href="#exampleFile">File based storage pool</a>
</li><li>
<a href="#exampleISCSI">iSCSI based storage pool</a>
</li><li>
<a href="#exampleVol">Storage volume</a>
</li></ul>
</li></ul>
<h2>
<a name="StoragePool" id="StoragePool">Storage pool XML</a>
</h2>
<p>
Although all storage pool backends share the same public APIs and
XML format, they have varying levels of capabilities. Some may
allow creation of volumes, others may only allow use of pre-existing
volumes. Some may have constraints on volume size, or placement.
</p>
<p>
The is the top level tag for a storage pool document is 'pool'. It has
a single attribute <code>type</code>, which is one of <code>dir</code>,
<code>fs</code>,<code>netfs</code>,<code>disk</code>,<code>iscsi</code>,
<code>logical</code>. This corresponds to the storage backend drivers
listed further along in this document.
The storage pool XML format is available <span class="since">since 0.4.1</span>
</p>
<h3>
<a name="StoragePoolFirst" id="StoragePoolFirst">General metadata</a>
</h3>
<pre>
&lt;pool type="iscsi"&gt;
&lt;name&gt;virtimages&lt;/name&gt;
&lt;uuid&gt;3e3fce45-4f53-4fa7-bb32-11f34168b82b&lt;/uuid&gt;
&lt;allocation&gt;10000000&lt;/allocation&gt;
&lt;capacity&gt;50000000&lt;/capacity&gt;
&lt;available&gt;40000000&lt;/available&gt;
...</pre>
<dl><dt><code>name</code></dt><dd>Providing a name for the pool which is unique to the host.
This is mandatory when defining a pool. <span class="since">Since 0.4.1</span></dd><dt><code>uuid</code></dt><dd>Providing an identifier for the pool which is globally unique.
This is optional when defining a pool, a UUID will be generated if
omitted. <span class="since">Since 0.4.1</span></dd><dt><code>allocation</code></dt><dd>Providing the total storage allocation for the pool. This may
be larger than the sum of the allocation of all volumes due to
metadata overhead. This value is in bytes. This is not applicable
when creating a pool. <span class="since">Since 0.4.1</span></dd><dt><code>capacity</code></dt><dd>Providing the total storage capacity for the pool. Due to
underlying device constraints it may not be possible to use the
full capacity for storage volumes. This value is in bytes. This
is not applicable when creating a pool. <span class="since">Since 0.4.1</span></dd><dt><code>available</code></dt><dd>Providing the free space available for allocating new volumes
in the pool. Due to underlying device constraints it may not be
possible to allocate the entire free space to a single volume.
This value is in bytes. This is not applicable when creating a
pool. <span class="since">Since 0.4.1</span></dd></dl>
<h3>
<a name="StoragePoolSource" id="StoragePoolSource">Source elements</a>
</h3>
<p>
A single <code>source</code> element is contained within the top level
<code>pool</code> element. This tag is used to describe the source of
the storage pool. It can contain the following child elements:
</p>
<pre>
...
&lt;source&gt;
&lt;host name="iscsi.example.com"/&gt;
&lt;device path="demo-target"/&gt;
&lt;/source&gt;
...</pre>
<dl><dt><code>device</code></dt><dd>Provides the source for pools backed by physical devices.
May be repeated multiple times depending on backend driver. Contains
a single attribute <code>path</code> which is the fully qualified
path to the block device node. <span class="since">Since 0.4.1</span></dd><dt><code>directory</code></dt><dd>Provides the source for pools backed by directories. May
only occur once. Contains a single attribute <code>path</code>
which is the fully qualified path to the block device node.
<span class="since">Since 0.4.1</span></dd><dt><code>host</code></dt><dd>Provides the source for pools backed by storage from a
remote server. Will be used in combination with a <code>directory</code>
or <code>device</code> element. Contains an attribute <code>name</code>
which is the hostname or IP address of the server. May optionally
contain a <code>port</code> attribute for the protocol specific
port number. <span class="since">Since 0.4.1</span></dd><dt><code>format</code></dt><dd>Provides information about the format of the pool. This
contains a single attribute <code>type</code> whose value is
backend specific. This is typically used to indicate filesystem
type, or network filesystem type, or partition table type, or
LVM metadata type. All drivers are required to have a default
value for this, so it is optional. <span class="since">Since 0.4.1</span></dd></dl>
<h3>
<a name="StoragePoolTarget" id="StoragePoolTarget">Target elements</a>
</h3>
<p>
A single <code>target</code> element is contained within the top level
<code>pool</code> element. This tag is used to describe the mapping of
the storage pool into the host filesystem. It can contain the following
child elements:
</p>
<pre>
...
&lt;target&gt;
&lt;path&gt;/dev/disk/by-path&lt;/path&gt;
&lt;permissions&gt;
&lt;owner&gt;0744&lt;/owner&gt;
&lt;group&gt;0744&lt;/group&gt;
&lt;mode&gt;0744&lt;/mode&gt;
&lt;label&gt;virt_image_t&lt;/label&gt;
&lt;/permissions&gt;
&lt;/target&gt;
&lt;/pool&gt;</pre>
<dl><dt><code>path</code></dt><dd>Provides the location at which the pool will be mapped into
the local filesystem namespace. For a filesystem/directory based
pool it will be the name of the directory in which volumes will
be created. For device based pools it will be the name of the directory in which
devices nodes exist. For the latter <code>/dev/</code> may seem
like the logical choice, however, devices nodes there are not
guaranteed stable across reboots, since they are allocated on
demand. It is preferable to use a stable location such as one
of the <code>/dev/disk/by-{path,id,uuid,label</code> locations.
<span class="since">Since 0.4.1</span>
</dd><dt><code>permissions</code></dt><dd>Provides information about the default permissions to use
when creating volumes. This is currently only useful for directory
or filesystem based pools, where the volumes allocated are simple
files. For pools where the volumes are device nodes, the hotplug
scripts determine permissions. It contains 4 child elements. The
<code>mode</code> element contains the octal permission set. The
<code>owner</code> element contains the numeric user ID. The <code>group</code>
element contains the numeric group ID. The <code>label</code> element
contains the MAC (eg SELinux) label string.
<span class="since">Since 0.4.1</span>
</dd></dl>
<h3>
<a name="StoragePoolExtents" id="StoragePoolExtents">Device extents</a>
</h3>
<p>
If a storage pool exposes information about its underlying
placement / allocation scheme, the <code>device</code> element
within the <code>source</code> element may contain information
about its available extents. Some pools have a constraint that
a volume must be allocated entirely within a single constraint
(eg disk partition pools). Thus the extent information allows an
application to determine the maximum possible size for a new
volume
</p>
<p>
For storage pools supporting extent information, within each
<code>device</code> element there will be zero or more <code>freeExtent</code>
elements. Each of these elements contains two attributes, <code>start</code>
and <code>end</code> which provide the boundaries of the extent on the
device, measured in bytes. <span class="since">Since 0.4.1</span>
</p>
<h2>
<a name="StorageVol" id="StorageVol">Storage volume XML</a>
</h2>
<p>
A storage volume will be either a file or a device node.
The storage volume XML format is available <span class="since">since 0.4.1</span>
</p>
<h3>
<a name="StorageVolFirst" id="StorageVolFirst">General metadata</a>
</h3>
<pre>
&lt;volume type="file"&gt;
&lt;name&gt;sparse.img&lt;/name&gt;
&lt;key&gt;/var/lib/xen/images/sparse.img&lt;/key&gt;
&lt;allocation&gt;0&lt;/allocation&gt;
&lt;capacity unit="T"&gt;1&lt;/capacity&gt;
...</pre>
<dl><dt><code>name</code></dt><dd>Providing a name for the volume which is unique to the pool.
This is mandatory when defining a volume. <span class="since">Since 0.4.1</span></dd><dt><code>key</code></dt><dd>Providing an identifier for the volume which is globally unique.
This is optional when defining a volume, a key will be generated if
omitted. <span class="since">Since 0.4.1</span></dd><dt><code>allocation</code></dt><dd>Providing the total storage allocation for the volume. This
may be smaller than the logical capacity if the volume is sparsely
allocated. It may also be larger than the logical capacity if the
volume has substantial metadata overhead. This value is in bytes.
If omitted when creating a volume, the volume will be fully
allocated at time of creation. If set to a value smaller than the
capacity, the pool has the <strong>option</strong> of deciding
to sparsely allocate a volume. It does not have to honour requests
for sparse allocation though. <span class="since">Since 0.4.1</span></dd><dt><code>capacity</code></dt><dd>Providing the logical capacity for the volume. This value is
in bytes. This is compulsory when creating a volume.
<span class="since">Since 0.4.1</span></dd><dt><code>source</code></dt><dd>Provides information about the underlying storage allocation
of the volume. This may not be available for some pool types.
<span class="since">Since 0.4.1</span></dd><dt><code>target</code></dt><dd>Provides information about the representation of the volume
on the local host. <span class="since">Since 0.4.1</span></dd></dl>
<h3>
<a name="StorageVolTarget" id="StorageVolTarget">Target elements</a>
</h3>
<p>
A single <code>target</code> element is contained within the top level
<code>volume</code> element. This tag is used to describe the mapping of
the storage volume into the host filesystem. It can contain the following
child elements:
</p>
<pre>
...
&lt;target&gt;
&lt;path&gt;/var/lib/virt/images/sparse.img&lt;/path&gt;
&lt;permissions&gt;
&lt;owner&gt;0744&lt;/owner&gt;
&lt;group&gt;0744&lt;/group&gt;
&lt;mode&gt;0744&lt;/mode&gt;
&lt;label&gt;virt_image_t&lt;/label&gt;
&lt;/permissions&gt;
&lt;/target&gt;
&lt;/volume&gt;</pre>
<dl><dt><code>path</code></dt><dd>Provides the location at which the pool will be mapped into
the local filesystem namespace. For a filesystem/directory based
pool it will be the name of the directory in which volumes will
be created. For device based pools it will be the name of the directory in which
devices nodes exist. For the latter <code>/dev/</code> may seem
like the logical choice, however, devices nodes there are not
guaranteed stable across reboots, since they are allocated on
demand. It is preferable to use a stable location such as one
of the <code>/dev/disk/by-{path,id,uuid,label</code> locations.
<span class="since">Since 0.4.1</span>
</dd><dt><code>format</code></dt><dd>Provides information about the pool specific volume format.
For disk pools it will provide the partition type. For filesystem
or directory pools it will provide the file format type, eg cow,
qcow, vmdk, raw. If omitted when creating a volume, the pool's
default format will be used. The actual format is specified via
the <code>type</code>. Consult the pool-specific docs for the
list of valid values. <span class="since">Since 0.4.1</span></dd><dt><code>permissions</code></dt><dd>Provides information about the default permissions to use
when creating volumes. This is currently only useful for directory
or filesystem based pools, where the volumes allocated are simple
files. For pools where the volumes are device nodes, the hotplug
scripts determine permissions. It contains 4 child elements. The
<code>mode</code> element contains the octal permission set. The
<code>owner</code> element contains the numeric user ID. The <code>group</code>
element contains the numeric group ID. The <code>label</code> element
contains the MAC (eg SELinux) label string.
<span class="since">Since 0.4.1</span>
</dd></dl>
<h2>
<a name="examples" id="examples">Example configuration</a>
</h2>
<p>
Here are a couple of examples, for a more complete set demonstrating
every type of storage pool, consult the <a href="storage.html">storage driver page</a>
</p>
<h3>
<a name="exampleFile" id="exampleFile">File based storage pool</a>
</h3>
<pre>
&lt;pool type="dir"&gt;
&lt;name&gt;virtimages&lt;/name&gt;
&lt;target&gt;
&lt;path&gt;/var/lib/virt/images&lt;/path&gt;
&lt;/target&gt;
&lt;/pool&gt;</pre>
<h3>
<a name="exampleISCSI" id="exampleISCSI">iSCSI based storage pool</a>
</h3>
<pre>
&lt;pool type="iscsi"&gt;
&lt;name&gt;virtimages&lt;/name&gt;
&lt;source&gt;
&lt;host name="iscsi.example.com"/&gt;
&lt;device path="demo-target"/&gt;
&lt;/source&gt;
&lt;target&gt;
&lt;path&gt;/dev/disk/by-path&lt;/path&gt;
&lt;/target&gt;
&lt;/pool&gt;</pre>
<h3>
<a name="exampleVol" id="exampleVol">Storage volume</a>
</h3>
<pre>
&lt;volume type="file"&gt;
&lt;name&gt;sparse.img&lt;/name&gt;
&lt;allocation&gt;0&lt;/allocation&gt;
&lt;capacity unit="T"&gt;1&lt;/capacity&gt;
&lt;target&gt;
&lt;path&gt;/var/lib/virt/images/sparse.img&lt;/path&gt;
&lt;permissions&gt;
&lt;owner&gt;0744&lt;/owner&gt;
&lt;group&gt;0744&lt;/group&gt;
&lt;mode&gt;0744&lt;/mode&gt;
&lt;label&gt;virt_image_t&lt;/label&gt;
&lt;/permissions&gt;
&lt;/target&gt;
&lt;/volume&gt;</pre>
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<body>
<h1>Storage pool and volume XML format</h1>
<ul id="toc"></ul>
<h2><a name="StoragePool">Storage pool XML</a></h2>
<p>
Although all storage pool backends share the same public APIs and
XML format, they have varying levels of capabilities. Some may
allow creation of volumes, others may only allow use of pre-existing
volumes. Some may have constraints on volume size, or placement.
</p>
<p>
The is the top level tag for a storage pool document is 'pool'. It has
a single attribute <code>type</code>, which is one of <code>dir</code>,
<code>fs</code>,<code>netfs</code>,<code>disk</code>,<code>iscsi</code>,
<code>logical</code>. This corresponds to the storage backend drivers
listed further along in this document.
The storage pool XML format is available <span class="since">since 0.4.1</span>
</p>
<h3><a name="StoragePoolFirst">General metadata</a></h3>
<pre>
&lt;pool type="iscsi"&gt;
&lt;name&gt;virtimages&lt;/name&gt;
&lt;uuid&gt;3e3fce45-4f53-4fa7-bb32-11f34168b82b&lt;/uuid&gt;
&lt;allocation&gt;10000000&lt;/allocation&gt;
&lt;capacity&gt;50000000&lt;/capacity&gt;
&lt;available&gt;40000000&lt;/available&gt;
...</pre>
<dl>
<dt><code>name</code></dt>
<dd>Providing a name for the pool which is unique to the host.
This is mandatory when defining a pool. <span class="since">Since 0.4.1</span></dd>
<dt><code>uuid</code></dt>
<dd>Providing an identifier for the pool which is globally unique.
This is optional when defining a pool, a UUID will be generated if
omitted. <span class="since">Since 0.4.1</span></dd>
<dt><code>allocation</code></dt>
<dd>Providing the total storage allocation for the pool. This may
be larger than the sum of the allocation of all volumes due to
metadata overhead. This value is in bytes. This is not applicable
when creating a pool. <span class="since">Since 0.4.1</span></dd>
<dt><code>capacity</code></dt>
<dd>Providing the total storage capacity for the pool. Due to
underlying device constraints it may not be possible to use the
full capacity for storage volumes. This value is in bytes. This
is not applicable when creating a pool. <span class="since">Since 0.4.1</span></dd>
<dt><code>available</code></dt>
<dd>Providing the free space available for allocating new volumes
in the pool. Due to underlying device constraints it may not be
possible to allocate the entire free space to a single volume.
This value is in bytes. This is not applicable when creating a
pool. <span class="since">Since 0.4.1</span></dd>
</dl>
<h3><a name="StoragePoolSource">Source elements</a></h3>
<p>
A single <code>source</code> element is contained within the top level
<code>pool</code> element. This tag is used to describe the source of
the storage pool. It can contain the following child elements:
</p>
<pre>
...
&lt;source&gt;
&lt;host name="iscsi.example.com"/&gt;
&lt;device path="demo-target"/&gt;
&lt;/source&gt;
...</pre>
<dl>
<dt><code>device</code></dt>
<dd>Provides the source for pools backed by physical devices.
May be repeated multiple times depending on backend driver. Contains
a single attribute <code>path</code> which is the fully qualified
path to the block device node. <span class="since">Since 0.4.1</span></dd>
<dt><code>directory</code></dt>
<dd>Provides the source for pools backed by directories. May
only occur once. Contains a single attribute <code>path</code>
which is the fully qualified path to the block device node.
<span class="since">Since 0.4.1</span></dd>
<dt><code>host</code></dt>
<dd>Provides the source for pools backed by storage from a
remote server. Will be used in combination with a <code>directory</code>
or <code>device</code> element. Contains an attribute <code>name</code>
which is the hostname or IP address of the server. May optionally
contain a <code>port</code> attribute for the protocol specific
port number. <span class="since">Since 0.4.1</span></dd>
<dt><code>format</code></dt>
<dd>Provides information about the format of the pool. This
contains a single attribute <code>type</code> whose value is
backend specific. This is typically used to indicate filesystem
type, or network filesystem type, or partition table type, or
LVM metadata type. All drivers are required to have a default
value for this, so it is optional. <span class="since">Since 0.4.1</span></dd>
</dl>
<h3><a name="StoragePoolTarget">Target elements</a></h3>
<p>
A single <code>target</code> element is contained within the top level
<code>pool</code> element. This tag is used to describe the mapping of
the storage pool into the host filesystem. It can contain the following
child elements:
</p>
<pre>
...
&lt;target&gt;
&lt;path&gt;/dev/disk/by-path&lt;/path&gt;
&lt;permissions&gt;
&lt;owner&gt;0744&lt;/owner&gt;
&lt;group&gt;0744&lt;/group&gt;
&lt;mode&gt;0744&lt;/mode&gt;
&lt;label&gt;virt_image_t&lt;/label&gt;
&lt;/permissions&gt;
&lt;/target&gt;
&lt;/pool&gt;</pre>
<dl>
<dt><code>path</code></dt>
<dd>Provides the location at which the pool will be mapped into
the local filesystem namespace. For a filesystem/directory based
pool it will be the name of the directory in which volumes will
be created. For device based pools it will be the name of the directory in which
devices nodes exist. For the latter <code>/dev/</code> may seem
like the logical choice, however, devices nodes there are not
guaranteed stable across reboots, since they are allocated on
demand. It is preferable to use a stable location such as one
of the <code>/dev/disk/by-{path,id,uuid,label</code> locations.
<span class="since">Since 0.4.1</span>
</dd>
<dt><code>permissions</code></dt>
<dd>Provides information about the default permissions to use
when creating volumes. This is currently only useful for directory
or filesystem based pools, where the volumes allocated are simple
files. For pools where the volumes are device nodes, the hotplug
scripts determine permissions. It contains 4 child elements. The
<code>mode</code> element contains the octal permission set. The
<code>owner</code> element contains the numeric user ID. The <code>group</code>
element contains the numeric group ID. The <code>label</code> element
contains the MAC (eg SELinux) label string.
<span class="since">Since 0.4.1</span>
</dd>
</dl>
<h3><a name="StoragePoolExtents">Device extents</a></h3>
<p>
If a storage pool exposes information about its underlying
placement / allocation scheme, the <code>device</code> element
within the <code>source</code> element may contain information
about its available extents. Some pools have a constraint that
a volume must be allocated entirely within a single constraint
(eg disk partition pools). Thus the extent information allows an
application to determine the maximum possible size for a new
volume
</p>
<p>
For storage pools supporting extent information, within each
<code>device</code> element there will be zero or more <code>freeExtent</code>
elements. Each of these elements contains two attributes, <code>start</code>
and <code>end</code> which provide the boundaries of the extent on the
device, measured in bytes. <span class="since">Since 0.4.1</span>
</p>
<h2><a name="StorageVol">Storage volume XML</a></h2>
<p>
A storage volume will be either a file or a device node.
The storage volume XML format is available <span class="since">since 0.4.1</span>
</p>
<h3><a name="StorageVolFirst">General metadata</a></h3>
<pre>
&lt;volume type="file"&gt;
&lt;name&gt;sparse.img&lt;/name&gt;
&lt;key&gt;/var/lib/xen/images/sparse.img&lt;/key&gt;
&lt;allocation&gt;0&lt;/allocation&gt;
&lt;capacity unit="T"&gt;1&lt;/capacity&gt;
...</pre>
<dl>
<dt><code>name</code></dt>
<dd>Providing a name for the volume which is unique to the pool.
This is mandatory when defining a volume. <span class="since">Since 0.4.1</span></dd>
<dt><code>key</code></dt>
<dd>Providing an identifier for the volume which is globally unique.
This is optional when defining a volume, a key will be generated if
omitted. <span class="since">Since 0.4.1</span></dd>
<dt><code>allocation</code></dt>
<dd>Providing the total storage allocation for the volume. This
may be smaller than the logical capacity if the volume is sparsely
allocated. It may also be larger than the logical capacity if the
volume has substantial metadata overhead. This value is in bytes.
If omitted when creating a volume, the volume will be fully
allocated at time of creation. If set to a value smaller than the
capacity, the pool has the <strong>option</strong> of deciding
to sparsely allocate a volume. It does not have to honour requests
for sparse allocation though. <span class="since">Since 0.4.1</span></dd>
<dt><code>capacity</code></dt>
<dd>Providing the logical capacity for the volume. This value is
in bytes. This is compulsory when creating a volume.
<span class="since">Since 0.4.1</span></dd>
<dt><code>source</code></dt>
<dd>Provides information about the underlying storage allocation
of the volume. This may not be available for some pool types.
<span class="since">Since 0.4.1</span></dd>
<dt><code>target</code></dt>
<dd>Provides information about the representation of the volume
on the local host. <span class="since">Since 0.4.1</span></dd>
</dl>
<h3><a name="StorageVolTarget">Target elements</a></h3>
<p>
A single <code>target</code> element is contained within the top level
<code>volume</code> element. This tag is used to describe the mapping of
the storage volume into the host filesystem. It can contain the following
child elements:
</p>
<pre>
...
&lt;target&gt;
&lt;path&gt;/var/lib/virt/images/sparse.img&lt;/path&gt;
&lt;permissions&gt;
&lt;owner&gt;0744&lt;/owner&gt;
&lt;group&gt;0744&lt;/group&gt;
&lt;mode&gt;0744&lt;/mode&gt;
&lt;label&gt;virt_image_t&lt;/label&gt;
&lt;/permissions&gt;
&lt;/target&gt;
&lt;/volume&gt;</pre>
<dl>
<dt><code>path</code></dt>
<dd>Provides the location at which the pool will be mapped into
the local filesystem namespace. For a filesystem/directory based
pool it will be the name of the directory in which volumes will
be created. For device based pools it will be the name of the directory in which
devices nodes exist. For the latter <code>/dev/</code> may seem
like the logical choice, however, devices nodes there are not
guaranteed stable across reboots, since they are allocated on
demand. It is preferable to use a stable location such as one
of the <code>/dev/disk/by-{path,id,uuid,label</code> locations.
<span class="since">Since 0.4.1</span>
</dd>
<dt><code>format</code></dt>
<dd>Provides information about the pool specific volume format.
For disk pools it will provide the partition type. For filesystem
or directory pools it will provide the file format type, eg cow,
qcow, vmdk, raw. If omitted when creating a volume, the pool's
default format will be used. The actual format is specified via
the <code>type</code>. Consult the pool-specific docs for the
list of valid values. <span class="since">Since 0.4.1</span></dd>
<dt><code>permissions</code></dt>
<dd>Provides information about the default permissions to use
when creating volumes. This is currently only useful for directory
or filesystem based pools, where the volumes allocated are simple
files. For pools where the volumes are device nodes, the hotplug
scripts determine permissions. It contains 4 child elements. The
<code>mode</code> element contains the octal permission set. The
<code>owner</code> element contains the numeric user ID. The <code>group</code>
element contains the numeric group ID. The <code>label</code> element
contains the MAC (eg SELinux) label string.
<span class="since">Since 0.4.1</span>
</dd>
</dl>
<h2><a name="examples">Example configuration</a></h2>
<p>
Here are a couple of examples, for a more complete set demonstrating
every type of storage pool, consult the <a href="storage.html">storage driver page</a>
</p>
<h3><a name="exampleFile">File based storage pool</a></h3>
<pre>
&lt;pool type="dir"&gt;
&lt;name&gt;virtimages&lt;/name&gt;
&lt;target&gt;
&lt;path&gt;/var/lib/virt/images&lt;/path&gt;
&lt;/target&gt;
&lt;/pool&gt;</pre>
<h3><a name="exampleISCSI">iSCSI based storage pool</a></h3>
<pre>
&lt;pool type="iscsi"&gt;
&lt;name&gt;virtimages&lt;/name&gt;
&lt;source&gt;
&lt;host name="iscsi.example.com"/&gt;
&lt;device path="demo-target"/&gt;
&lt;/source&gt;
&lt;target&gt;
&lt;path&gt;/dev/disk/by-path&lt;/path&gt;
&lt;/target&gt;
&lt;/pool&gt;</pre>
<h3><a name="exampleVol">Storage volume</a></h3>
<pre>
&lt;volume type="file"&gt;
&lt;name&gt;sparse.img&lt;/name&gt;
&lt;allocation&gt;0&lt;/allocation&gt;
&lt;capacity unit="T"&gt;1&lt;/capacity&gt;
&lt;target&gt;
&lt;path&gt;/var/lib/virt/images/sparse.img&lt;/path&gt;
&lt;permissions&gt;
&lt;owner&gt;0744&lt;/owner&gt;
&lt;group&gt;0744&lt;/group&gt;
&lt;mode&gt;0744&lt;/mode&gt;
&lt;label&gt;virt_image_t&lt;/label&gt;
&lt;/permissions&gt;
&lt;/target&gt;
&lt;/volume&gt;</pre>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="../libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Module conf from libvirt</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Module conf from libvirt</h1><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="libvirt-virterror.html"><img src="left.png" width="24" height="24" border="0" alt="Prev" /></a></td><th align="left"><a href="libvirt-virterror.html">virterror</a></th><td><a accesskey="u" href="index.html"><img src="up.png" width="24" height="24" border="0" alt="Up" /></a></td><th align="left"><a href="index.html">API documentation</a></th><td><a accesskey="h" href="../index.html"><img src="home.png" width="24" height="24" border="0" alt="Home" /></a></td><th align="center"><a href="../index.html">The virtualization API</a></th></tr></table><h2>Table of Contents</h2><pre class="programlisting">Structure <a href="#virConf">virConf</a><br />struct _virConf
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libvirt-conf.html#virConf">virConf</a> * <a name="virConfPtr" id="virConfPtr">virConfPtr</a>
</pre><pre class="programlisting">Enum <a href="#virConfType">virConfType</a>
</pre><pre class="programlisting">Structure <a href="#virConfValue">virConfValue</a><br />struct _virConfValue
</pre><pre class="programlisting">Typedef <a href="libvirt-conf.html#virConfValue">virConfValue</a> * <a name="virConfValuePtr" id="virConfValuePtr">virConfValuePtr</a>
</pre><pre class="programlisting">int <a href="#virConfFree">virConfFree</a> (<a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)</pre>
<pre class="programlisting"><a href="libvirt-conf.html#virConfValuePtr">virConfValuePtr</a> <a href="#virConfGetValue">virConfGetValue</a> (<a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf, <br /> const char * setting)</pre>
<pre class="programlisting"><a href="libvirt-conf.html#virConfPtr">virConfPtr</a> <a href="#virConfReadFile">virConfReadFile</a> (const char * filename)</pre>
<pre class="programlisting"><a href="libvirt-conf.html#virConfPtr">virConfPtr</a> <a href="#virConfReadMem">virConfReadMem</a> (const char * memory, <br /> int len)</pre>
<pre class="programlisting">int <a href="#virConfWriteFile">virConfWriteFile</a> (const char * filename, <br /> <a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)</pre>
<pre class="programlisting">int <a href="#virConfWriteMem">virConfWriteMem</a> (char * memory, <br /> int * len, <br /> <a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)</pre>
<h2>Description</h2>
<h3><a name="virConf" id="virConf">Structure virConf</a></h3><pre class="programlisting">Structure virConf<br />struct _virConf {
The content of this structure is not made public by the API.
}</pre>
a pointer to a parsed configuration file
<h3>Enum <a name="virConfType" id="virConfType">virConfType</a></h3><pre class="programlisting">Enum virConfType {
<a name="VIR_CONF_NONE" id="VIR_CONF_NONE">VIR_CONF_NONE</a> = 0 : undefined
<a name="VIR_CONF_LONG" id="VIR_CONF_LONG">VIR_CONF_LONG</a> = 1 : a long int
<a name="VIR_CONF_STRING" id="VIR_CONF_STRING">VIR_CONF_STRING</a> = 2 : a string
<a name="VIR_CONF_LIST" id="VIR_CONF_LIST">VIR_CONF_LIST</a> = 3 : a list
}
</pre><h3><a name="virConfValue" id="virConfValue">Structure virConfValue</a></h3><pre class="programlisting">Structure virConfValue<br />struct _virConfValue {
<a href="libvirt-conf.html#virConfType">virConfType</a> type : the <a href="libvirt-conf.html#virConfType">virConfType</a>
<a href="libvirt-conf.html#virConfValuePtr">virConfValuePtr</a> next : next element if in a list
long l : long integer
char * str : pointer to 0 terminated string
<a href="libvirt-conf.html#virConfValuePtr">virConfValuePtr</a> list : list of a list
}</pre><h3><a name="virConfFree" id="virConfFree"></a>Function: virConfFree</h3><pre class="programlisting">int virConfFree (<a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)<br />
</pre><p>Frees all data associated to the handle</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conf</tt></i>:</span></td><td>a configuration file handle</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConfGetValue" id="virConfGetValue"></a>Function: virConfGetValue</h3><pre class="programlisting"><a href="libvirt-conf.html#virConfValuePtr">virConfValuePtr</a> virConfGetValue (<a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf, <br /> const char * setting)<br />
</pre><p>Lookup the value associated to this entry in the configuration file</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conf</tt></i>:</span></td><td>a configuration file handle</td></tr><tr><td><span class="term"><i><tt>setting</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the value or NULL if the lookup failed, the data associated will be freed when virConfFree() is called</td></tr></tbody></table></div><h3><a name="virConfReadFile" id="virConfReadFile"></a>Function: virConfReadFile</h3><pre class="programlisting"><a href="libvirt-conf.html#virConfPtr">virConfPtr</a> virConfReadFile (const char * filename)<br />
</pre><p>Reads a configuration file.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>filename</tt></i>:</span></td><td>the path to the configuration file.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>an handle to lookup settings or NULL if it failed to read or parse the file, use virConfFree() to free the data.</td></tr></tbody></table></div><h3><a name="virConfReadMem" id="virConfReadMem"></a>Function: virConfReadMem</h3><pre class="programlisting"><a href="libvirt-conf.html#virConfPtr">virConfPtr</a> virConfReadMem (const char * memory, <br /> int len)<br />
</pre><p>Reads a configuration file loaded in memory. The string can be zero terminated in which case @len can be 0</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>pointer to the content of the configuration file</td></tr><tr><td><span class="term"><i><tt>len</tt></i>:</span></td><td>length in byte</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>an handle to lookup settings or NULL if it failed to parse the content, use virConfFree() to free the data.</td></tr></tbody></table></div><h3><a name="virConfWriteFile" id="virConfWriteFile"></a>Function: virConfWriteFile</h3><pre class="programlisting">int virConfWriteFile (const char * filename, <br /> <a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)<br />
</pre><p>Writes a configuration file back to a file.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>filename</tt></i>:</span></td><td>the path to the configuration file.</td></tr><tr><td><span class="term"><i><tt>conf</tt></i>:</span></td><td>the conf</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of bytes written or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConfWriteMem" id="virConfWriteMem"></a>Function: virConfWriteMem</h3><pre class="programlisting">int virConfWriteMem (char * memory, <br /> int * len, <br /> <a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)<br />
</pre><p>Writes a configuration file back to a memory area. @len is an IN/OUT parameter, it indicates the size available in bytes, and on output the size required for the configuration file (even if the call fails due to insufficient space).</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>pointer to the memory to store the config file</td></tr><tr><td><span class="term"><i><tt>len</tt></i>:</span></td><td>pointer to the length in byte of the store, on output the size</td></tr><tr><td><span class="term"><i><tt>conf</tt></i>:</span></td><td>the conf</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of bytes written or -1 in case of error.</td></tr></tbody></table></div></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="../index.html">Home</a></li><li><a href="../html/index.html">API Menu</a></li><li><a href="../examples/index.html">C code examples</a></li><li><a href="../ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="../Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>

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<?xml version="1.0" encoding="ISO-8859-1"?>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="../libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Module libvirt from libvirt</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Module libvirt from libvirt</h1><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="u" href="index.html"><img src="up.png" width="24" height="24" border="0" alt="Up" /></a></td><th align="left"><a href="index.html">API documentation</a></th><td><a accesskey="h" href="../index.html"><img src="home.png" width="24" height="24" border="0" alt="Home" /></a></td><th align="center"><a href="../index.html">The virtualization API</a></th><th align="right"><a href="libvirt-virterror.html">virterror</a></th><td><a accesskey="n" href="libvirt-virterror.html"><img src="right.png" width="24" height="24" border="0" alt="Next" /></a></td></tr></table><p>Provides the interfaces of the libvirt library to handle Xen domains from a process running in domain 0 </p><h2>Table of Contents</h2><pre class="programlisting">#define <a href="#LIBVIR_VERSION_NUMBER">LIBVIR_VERSION_NUMBER</a></pre><pre class="programlisting">#define <a href="#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a></pre><pre class="programlisting">#define <a href="#VIR_CPU_MAPLEN">VIR_CPU_MAPLEN</a></pre><pre class="programlisting">#define <a href="#VIR_CPU_USABLE">VIR_CPU_USABLE</a></pre><pre class="programlisting">#define <a href="#VIR_DOMAIN_SCHED_FIELD_LENGTH">VIR_DOMAIN_SCHED_FIELD_LENGTH</a></pre><pre class="programlisting">#define <a href="#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a></pre><pre class="programlisting">#define <a href="#VIR_NODEINFO_MAXCPUS">VIR_NODEINFO_MAXCPUS</a></pre><pre class="programlisting">#define <a href="#VIR_UNUSE_CPU">VIR_UNUSE_CPU</a></pre><pre class="programlisting">#define <a href="#VIR_USE_CPU">VIR_USE_CPU</a></pre><pre class="programlisting">#define <a href="#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a></pre><pre class="programlisting">#define <a href="#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a></pre><pre class="programlisting">Structure <a href="#virConnect">virConnect</a><br />struct _virConnect
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Structure <a href="#virConnectAuth">virConnectAuth</a><br />struct _virConnectAuth
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virConnectAuth">virConnectAuth</a> * <a name="virConnectAuthPtr" id="virConnectAuthPtr">virConnectAuthPtr</a>
</pre><pre class="programlisting">Structure <a href="#virConnectCredential">virConnectCredential</a><br />struct _virConnectCredential
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virConnectCredential">virConnectCredential</a> * <a name="virConnectCredentialPtr" id="virConnectCredentialPtr">virConnectCredentialPtr</a>
</pre><pre class="programlisting">Enum <a href="#virConnectCredentialType">virConnectCredentialType</a>
</pre><pre class="programlisting">Enum <a href="#virConnectFlags">virConnectFlags</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virConnect">virConnect</a> * <a name="virConnectPtr" id="virConnectPtr">virConnectPtr</a>
</pre><pre class="programlisting">Structure <a href="#virDomain">virDomain</a><br />struct _virDomain
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a> * <a name="virDomainBlockStatsPtr" id="virDomainBlockStatsPtr">virDomainBlockStatsPtr</a>
</pre><pre class="programlisting">Structure <a href="#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a><br />struct _virDomainBlockStats
</pre><pre class="programlisting">Enum <a href="#virDomainCreateFlags">virDomainCreateFlags</a>
</pre><pre class="programlisting">Structure <a href="#virDomainInfo">virDomainInfo</a><br />struct _virDomainInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> * <a name="virDomainInfoPtr" id="virDomainInfoPtr">virDomainInfoPtr</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a> * <a name="virDomainInterfaceStatsPtr" id="virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a>
</pre><pre class="programlisting">Structure <a href="#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a><br />struct _virDomainInterfaceStats
</pre><pre class="programlisting">Enum <a href="#virDomainMigrateFlags">virDomainMigrateFlags</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virDomain">virDomain</a> * <a name="virDomainPtr" id="virDomainPtr">virDomainPtr</a>
</pre><pre class="programlisting">Enum <a href="#virDomainState">virDomainState</a>
</pre><pre class="programlisting">Enum <a href="#virDomainXMLFlags">virDomainXMLFlags</a>
</pre><pre class="programlisting">Structure <a href="#virNetwork">virNetwork</a><br />struct _virNetwork
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virNetwork">virNetwork</a> * <a name="virNetworkPtr" id="virNetworkPtr">virNetworkPtr</a>
</pre><pre class="programlisting">Structure <a href="#virNodeInfo">virNodeInfo</a><br />struct _virNodeInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> * <a name="virNodeInfoPtr" id="virNodeInfoPtr">virNodeInfoPtr</a>
</pre><pre class="programlisting">Structure <a href="#virSchedParameter">virSchedParameter</a><br />struct _virSchedParameter
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a> * <a name="virSchedParameterPtr" id="virSchedParameterPtr">virSchedParameterPtr</a>
</pre><pre class="programlisting">Enum <a href="#virSchedParameterType">virSchedParameterType</a>
</pre><pre class="programlisting">Structure <a href="#virStoragePool">virStoragePool</a><br />struct _virStoragePool
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Enum <a href="#virStoragePoolBuildFlags">virStoragePoolBuildFlags</a>
</pre><pre class="programlisting">Enum <a href="#virStoragePoolDeleteFlags">virStoragePoolDeleteFlags</a>
</pre><pre class="programlisting">Structure <a href="#virStoragePoolInfo">virStoragePoolInfo</a><br />struct _virStoragePoolInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virStoragePoolInfo">virStoragePoolInfo</a> * <a name="virStoragePoolInfoPtr" id="virStoragePoolInfoPtr">virStoragePoolInfoPtr</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virStoragePool">virStoragePool</a> * <a name="virStoragePoolPtr" id="virStoragePoolPtr">virStoragePoolPtr</a>
</pre><pre class="programlisting">Enum <a href="#virStoragePoolState">virStoragePoolState</a>
</pre><pre class="programlisting">Structure <a href="#virStorageVol">virStorageVol</a><br />struct _virStorageVol
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Enum <a href="#virStorageVolDeleteFlags">virStorageVolDeleteFlags</a>
</pre><pre class="programlisting">Structure <a href="#virStorageVolInfo">virStorageVolInfo</a><br />struct _virStorageVolInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virStorageVolInfo">virStorageVolInfo</a> * <a name="virStorageVolInfoPtr" id="virStorageVolInfoPtr">virStorageVolInfoPtr</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virStorageVol">virStorageVol</a> * <a name="virStorageVolPtr" id="virStorageVolPtr">virStorageVolPtr</a>
</pre><pre class="programlisting">Enum <a href="#virStorageVolType">virStorageVolType</a>
</pre><pre class="programlisting">Structure <a href="#virVcpuInfo">virVcpuInfo</a><br />struct _virVcpuInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> * <a name="virVcpuInfoPtr" id="virVcpuInfoPtr">virVcpuInfoPtr</a>
</pre><pre class="programlisting">Enum <a href="#virVcpuState">virVcpuState</a>
</pre><pre class="programlisting">Function type: <a href="#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a>
<html xmlns="http://www.w3.org/1999/xhtml"><!--
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--><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="../main.css" /><link rel="SHORTCUT ICON" href="../32favicon.png" /><title>libvirt: Module libvirt from libvirt</title><meta name="description" content="libvirt, virtualization, virtualization API" /></head><body><div id="header"><div id="headerLogo"></div><div id="headerSearch"><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><div><input id="query" name="query" type="text" size="12" value="" /><input id="submit" name="submit" type="submit" value="Search" /></div></form></div></div><div id="body"><div id="menu"><ul class="l0"><li><div><a title="Front page of the libvirt website" class="inactive" href="../index.html">Home</a></div></li><li><div><a title="Details of new features and bugs fixed in each release" class="inactive" href="../news.html">News</a></div></li><li><div><a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="../downloads.html">Downloads</a></div></li><li><div><a title="Information for users, administrators and developers" class="active" href="../docs.html">Documentation</a><ul class="l1"><li><div><a title="Information about deploying and using libvirt" class="inactive" href="../deployment.html">Deployment</a></div></li><li><div><a title="Overview of the logical subsystems in the libvirt API" class="inactive" href="../intro.html">Architecture</a></div></li><li><div><a title="Description of the XML formats used in libvirt" class="inactive" href="../format.html">XML format</a></div></li><li><div><a title="Hypervisor specific driver information" class="inactive" href="../drivers.html">Drivers</a></div></li><li><div><a title="Reference manual for the C public API" class="active" href="../html/index.html">API reference</a><ul class="l2"><li><div><span class="active">libvirt</span></div></li><li><div><a title="error handling interfaces for the libvirt library" class="inactive" href="../html/libvirt-virterror.html">virterror</a></div></li><li><div><a title="matrix of API support per hypervisor per release" class="inactive" href="../hvsupport.html">Driver support</a></div></li></ul></div></li><li><div><a title="Bindings of the libvirt API for other languages" class="inactive" href="../bindings.html">Language bindings</a></div></li></ul></div></li><li><div><a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a></div></li><li><div><a title="Frequently asked questions" class="inactive" href="../FAQ.html">FAQ</a></div></li><li><div><a title="How and where to report bugs and request features" class="inactive" href="../bugs.html">Bug reports</a></div></li><li><div><a title="How to contact the developers via email and IRC" class="inactive" href="../contact.html">Contact</a></div></li><li><div><a title="Miscellaneous links of interest related to libvirt" class="inactive" href="../relatedlinks.html">Related Links</a></div></li><li><div><a title="Overview of all content on the website" class="inactive" href="../sitemap.html">Sitemap</a></div></li></ul></div><div id="content"><h1>Module libvirt from libvirt</h1><p>Provides the interfaces of the libvirt library to handle Xen domains from a process running in domain 0 </p><h2>Table of Contents</h2><h3><a href="#macros">Macros</a></h3><pre>#define <a href="#LIBVIR_VERSION_NUMBER">LIBVIR_VERSION_NUMBER</a>
#define <a href="#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a>
#define <a href="#VIR_CPU_MAPLEN">VIR_CPU_MAPLEN</a>
#define <a href="#VIR_CPU_USABLE">VIR_CPU_USABLE</a>
#define <a href="#VIR_DOMAIN_SCHED_FIELD_LENGTH">VIR_DOMAIN_SCHED_FIELD_LENGTH</a>
#define <a href="#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a>
#define <a href="#VIR_NODEINFO_MAXCPUS">VIR_NODEINFO_MAXCPUS</a>
#define <a href="#VIR_UNUSE_CPU">VIR_UNUSE_CPU</a>
#define <a href="#VIR_USE_CPU">VIR_USE_CPU</a>
#define <a href="#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a>
#define <a href="#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a>
</pre><h3><a href="#types">Types</a></h3><pre>typedef struct _virConnect <a href="#virConnect">virConnect</a>
typedef struct _virConnectAuth <a href="#virConnectAuth">virConnectAuth</a>
typedef <a href="libvirt-libvirt.html#virConnectAuth">virConnectAuth</a> * <a name="virConnectAuthPtr" id="virConnectAuthPtr">virConnectAuthPtr</a>
typedef struct _virConnectCredential <a href="#virConnectCredential">virConnectCredential</a>
typedef <a href="libvirt-libvirt.html#virConnectCredential">virConnectCredential</a> * <a name="virConnectCredentialPtr" id="virConnectCredentialPtr">virConnectCredentialPtr</a>
typedef enum <a href="#virConnectCredentialType">virConnectCredentialType</a>
typedef enum <a href="#virConnectFlags">virConnectFlags</a>
typedef <a href="libvirt-libvirt.html#virConnect">virConnect</a> * <a name="virConnectPtr" id="virConnectPtr">virConnectPtr</a>
typedef struct _virDomain <a href="#virDomain">virDomain</a>
typedef <a href="libvirt-libvirt.html#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a> * <a name="virDomainBlockStatsPtr" id="virDomainBlockStatsPtr">virDomainBlockStatsPtr</a>
typedef struct _virDomainBlockStats <a href="#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a>
typedef enum <a href="#virDomainCreateFlags">virDomainCreateFlags</a>
typedef struct _virDomainInfo <a href="#virDomainInfo">virDomainInfo</a>
typedef <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> * <a name="virDomainInfoPtr" id="virDomainInfoPtr">virDomainInfoPtr</a>
typedef <a href="libvirt-libvirt.html#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a> * <a name="virDomainInterfaceStatsPtr" id="virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a>
typedef struct _virDomainInterfaceStats <a href="#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a>
typedef enum <a href="#virDomainMigrateFlags">virDomainMigrateFlags</a>
typedef <a href="libvirt-libvirt.html#virDomain">virDomain</a> * <a name="virDomainPtr" id="virDomainPtr">virDomainPtr</a>
typedef enum <a href="#virDomainState">virDomainState</a>
typedef enum <a href="#virDomainXMLFlags">virDomainXMLFlags</a>
typedef struct _virNetwork <a href="#virNetwork">virNetwork</a>
typedef <a href="libvirt-libvirt.html#virNetwork">virNetwork</a> * <a name="virNetworkPtr" id="virNetworkPtr">virNetworkPtr</a>
typedef struct _virNodeInfo <a href="#virNodeInfo">virNodeInfo</a>
typedef <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> * <a name="virNodeInfoPtr" id="virNodeInfoPtr">virNodeInfoPtr</a>
typedef struct _virSchedParameter <a href="#virSchedParameter">virSchedParameter</a>
typedef <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a> * <a name="virSchedParameterPtr" id="virSchedParameterPtr">virSchedParameterPtr</a>
typedef enum <a href="#virSchedParameterType">virSchedParameterType</a>
typedef struct _virStoragePool <a href="#virStoragePool">virStoragePool</a>
typedef enum <a href="#virStoragePoolBuildFlags">virStoragePoolBuildFlags</a>
typedef enum <a href="#virStoragePoolDeleteFlags">virStoragePoolDeleteFlags</a>
typedef struct _virStoragePoolInfo <a href="#virStoragePoolInfo">virStoragePoolInfo</a>
typedef <a href="libvirt-libvirt.html#virStoragePoolInfo">virStoragePoolInfo</a> * <a name="virStoragePoolInfoPtr" id="virStoragePoolInfoPtr">virStoragePoolInfoPtr</a>
typedef <a href="libvirt-libvirt.html#virStoragePool">virStoragePool</a> * <a name="virStoragePoolPtr" id="virStoragePoolPtr">virStoragePoolPtr</a>
typedef enum <a href="#virStoragePoolState">virStoragePoolState</a>
typedef struct _virStorageVol <a href="#virStorageVol">virStorageVol</a>
typedef enum <a href="#virStorageVolDeleteFlags">virStorageVolDeleteFlags</a>
typedef struct _virStorageVolInfo <a href="#virStorageVolInfo">virStorageVolInfo</a>
typedef <a href="libvirt-libvirt.html#virStorageVolInfo">virStorageVolInfo</a> * <a name="virStorageVolInfoPtr" id="virStorageVolInfoPtr">virStorageVolInfoPtr</a>
typedef <a href="libvirt-libvirt.html#virStorageVol">virStorageVol</a> * <a name="virStorageVolPtr" id="virStorageVolPtr">virStorageVolPtr</a>
typedef enum <a href="#virStorageVolType">virStorageVolType</a>
typedef struct _virVcpuInfo <a href="#virVcpuInfo">virVcpuInfo</a>
typedef <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> * <a name="virVcpuInfoPtr" id="virVcpuInfoPtr">virVcpuInfoPtr</a>
typedef enum <a href="#virVcpuState">virVcpuState</a>
</pre><h3><a href="#functions">Functions</a></h3><pre>typedef <a href="#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a>
int <a href="#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a> (<a href="libvirt-libvirt.html#virConnectCredentialPtr">virConnectCredentialPtr</a> cred, <br /> unsigned int ncred, <br /> void * cbdata)
</pre>
<pre class="programlisting">int <a href="#virConnectClose">virConnectClose</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">char * <a href="#virConnectGetCapabilities">virConnectGetCapabilities</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">char * <a href="#virConnectGetHostname">virConnectGetHostname</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectGetMaxVcpus">virConnectGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)</pre>
<pre class="programlisting">const char * <a href="#virConnectGetType">virConnectGetType</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">char * <a href="#virConnectGetURI">virConnectGetURI</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectGetVersion">virConnectGetVersion</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer)</pre>
<pre class="programlisting">int <a href="#virConnectListDefinedDomains">virConnectListDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectListDefinedNetworks">virConnectListDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectListDefinedStoragePools">virConnectListDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectListDomains">virConnectListDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids)</pre>
<pre class="programlisting">int <a href="#virConnectListNetworks">virConnectListNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectListStoragePools">virConnectListStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfDefinedDomains">virConnectNumOfDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfDefinedNetworks">virConnectNumOfDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfDefinedStoragePools">virConnectNumOfDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfDomains">virConnectNumOfDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfNetworks">virConnectNumOfNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfStoragePools">virConnectNumOfStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpen">virConnectOpen</a> (const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenAuth">virConnectOpenAuth</a> (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenReadOnly">virConnectOpenReadOnly</a> (const char * name)</pre>
<pre class="programlisting">int <a href="#virDomainAttachDevice">virDomainAttachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)</pre>
<pre class="programlisting">int <a href="#virDomainBlockStats">virDomainBlockStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size)</pre>
<pre class="programlisting">int <a href="#virDomainCoreDump">virDomainCoreDump</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags)</pre>
<pre class="programlisting">int <a href="#virDomainCreate">virDomainCreate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainCreateLinux">virDomainCreateLinux</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainDefineXML">virDomainDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)</pre>
<pre class="programlisting">int <a href="#virDomainDestroy">virDomainDestroy</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainDetachDevice">virDomainDetachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)</pre>
<pre class="programlisting">int <a href="#virDomainFree">virDomainFree</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainGetAutostart">virDomainGetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virDomainGetConnect">virDomainGetConnect</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom)</pre>
<pre class="programlisting">unsigned int <a href="#virDomainGetID">virDomainGetID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainGetInfo">virDomainGetInfo</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info)</pre>
<pre class="programlisting">unsigned long <a href="#virDomainGetMaxMemory">virDomainGetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainGetMaxVcpus">virDomainGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">const char * <a href="#virDomainGetName">virDomainGetName</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">char * <a href="#virDomainGetOSType">virDomainGetOSType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainGetSchedulerParameters">virDomainGetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams)</pre>
<pre class="programlisting">char * <a href="#virDomainGetSchedulerType">virDomainGetSchedulerType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams)</pre>
<pre class="programlisting">int <a href="#virDomainGetUUID">virDomainGetUUID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid)</pre>
<pre class="programlisting">int <a href="#virDomainGetUUIDString">virDomainGetUUIDString</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf)</pre>
<pre class="programlisting">int <a href="#virDomainGetVcpus">virDomainGetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen)</pre>
<pre class="programlisting">char * <a href="#virDomainGetXMLDesc">virDomainGetXMLDesc</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags)</pre>
<pre class="programlisting">int <a href="#virDomainInterfaceStats">virDomainInterfaceStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByID">virDomainLookupByID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByName">virDomainLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUID">virDomainLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUIDString">virDomainLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainMigrate">virDomainMigrate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth)</pre>
<pre class="programlisting">int <a href="#virDomainPinVcpu">virDomainPinVcpu</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen)</pre>
<pre class="programlisting">int <a href="#virDomainReboot">virDomainReboot</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virDomainRestore">virDomainRestore</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from)</pre>
<pre class="programlisting">int <a href="#virDomainResume">virDomainResume</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainSave">virDomainSave</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to)</pre>
<pre class="programlisting">int <a href="#virDomainSetAutostart">virDomainSetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart)</pre>
<pre class="programlisting">int <a href="#virDomainSetMaxMemory">virDomainSetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)</pre>
<pre class="programlisting">int <a href="#virDomainSetMemory">virDomainSetMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)</pre>
<pre class="programlisting">int <a href="#virDomainSetSchedulerParameters">virDomainSetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams)</pre>
<pre class="programlisting">int <a href="#virDomainSetVcpus">virDomainSetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus)</pre>
<pre class="programlisting">int <a href="#virDomainShutdown">virDomainShutdown</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainSuspend">virDomainSuspend</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainUndefine">virDomainUndefine</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virGetVersion">virGetVersion</a> (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer)</pre>
<pre class="programlisting">int <a href="#virInitialize">virInitialize</a> (void)</pre>
<pre class="programlisting">int <a href="#virNetworkCreate">virNetworkCreate</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkCreateXML">virNetworkCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkDefineXML">virNetworkDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)</pre>
<pre class="programlisting">int <a href="#virNetworkDestroy">virNetworkDestroy</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting">int <a href="#virNetworkFree">virNetworkFree</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting">int <a href="#virNetworkGetAutostart">virNetworkGetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart)</pre>
<pre class="programlisting">char * <a href="#virNetworkGetBridgeName">virNetworkGetBridgeName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virNetworkGetConnect">virNetworkGetConnect</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net)</pre>
<pre class="programlisting">const char * <a href="#virNetworkGetName">virNetworkGetName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting">int <a href="#virNetworkGetUUID">virNetworkGetUUID</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid)</pre>
<pre class="programlisting">int <a href="#virNetworkGetUUIDString">virNetworkGetUUIDString</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf)</pre>
<pre class="programlisting">char * <a href="#virNetworkGetXMLDesc">virNetworkGetXMLDesc</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByName">virNetworkLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUID">virNetworkLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUIDString">virNetworkLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)</pre>
<pre class="programlisting">int <a href="#virNetworkSetAutostart">virNetworkSetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart)</pre>
<pre class="programlisting">int <a href="#virNetworkUndefine">virNetworkUndefine</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting">int <a href="#virNodeGetCellsFreeMemory">virNodeGetCellsFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells)</pre>
<pre class="programlisting">unsigned long long <a href="#virNodeGetFreeMemory">virNodeGetFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virNodeGetInfo">virNodeGetInfo</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info)</pre>
<pre class="programlisting">int <a href="#virStoragePoolBuild">virStoragePoolBuild</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolCreate">virStoragePoolCreate</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolCreateXML">virStoragePoolCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolDefineXML">virStoragePoolDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolDelete">virStoragePoolDelete</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolDestroy">virStoragePoolDestroy</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolFree">virStoragePoolFree</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolGetAutostart">virStoragePoolGetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStoragePoolGetConnect">virStoragePoolGetConnect</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolGetInfo">virStoragePoolGetInfo</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info)</pre>
<pre class="programlisting">const char * <a href="#virStoragePoolGetName">virStoragePoolGetName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolGetUUID">virStoragePoolGetUUID</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid)</pre>
<pre class="programlisting">int <a href="#virStoragePoolGetUUIDString">virStoragePoolGetUUIDString</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf)</pre>
<pre class="programlisting">char * <a href="#virStoragePoolGetXMLDesc">virStoragePoolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolListVolumes">virStoragePoolListVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByName">virStoragePoolLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUID">virStoragePoolLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUIDString">virStoragePoolLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByVolume">virStoragePoolLookupByVolume</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">int <a href="#virStoragePoolNumOfVolumes">virStoragePoolNumOfVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolRefresh">virStoragePoolRefresh</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolSetAutostart">virStoragePoolSetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart)</pre>
<pre class="programlisting">int <a href="#virStoragePoolUndefine">virStoragePoolUndefine</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolCreateXML">virStorageVolCreateXML</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStorageVolDelete">virStorageVolDelete</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStorageVolFree">virStorageVolFree</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStorageVolGetConnect">virStorageVolGetConnect</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">int <a href="#virStorageVolGetInfo">virStorageVolGetInfo</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info)</pre>
<pre class="programlisting">const char * <a href="#virStorageVolGetKey">virStorageVolGetKey</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">const char * <a href="#virStorageVolGetName">virStorageVolGetName</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">char * <a href="#virStorageVolGetPath">virStorageVolGetPath</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">char * <a href="#virStorageVolGetXMLDesc">virStorageVolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByKey">virStorageVolLookupByKey</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByName">virStorageVolLookupByName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByPath">virStorageVolLookupByPath</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)</pre>
<h2>Description</h2>
<h3><a name="LIBVIR_VERSION_NUMBER" id="LIBVIR_VERSION_NUMBER"></a>Macro: LIBVIR_VERSION_NUMBER</h3><pre>#define LIBVIR_VERSION_NUMBER</pre><p>Macro providing the version of the library as version * 1,000,000 + minor * 1000 + micro</p>
<h3><a name="VIR_COPY_CPUMAP" id="VIR_COPY_CPUMAP"></a>Macro: VIR_COPY_CPUMAP</h3><pre>#define VIR_COPY_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a> macro extract the cpumap of the specified vcpu from cpumaps array and copy it into cpumap to be used later by virDomainPinVcpu() API.</p>
<h3><a name="VIR_CPU_MAPLEN" id="VIR_CPU_MAPLEN"></a>Macro: VIR_CPU_MAPLEN</h3><pre>#define VIR_CPU_MAPLEN</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. It returns the length (in bytes) required to store the complete CPU map between a single virtual &amp; all physical CPUs of a domain.</p>
<h3><a name="VIR_CPU_USABLE" id="VIR_CPU_USABLE"></a>Macro: VIR_CPU_USABLE</h3><pre>#define VIR_CPU_USABLE</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() API. <a href="libvirt-libvirt.html#VIR_CPU_USABLE">VIR_CPU_USABLE</a> macro returns a non zero value (true) if the cpu is usable by the vcpu, and 0 otherwise.</p>
<h3><a name="VIR_DOMAIN_SCHED_FIELD_LENGTH" id="VIR_DOMAIN_SCHED_FIELD_LENGTH"></a>Macro: VIR_DOMAIN_SCHED_FIELD_LENGTH</h3><pre>#define VIR_DOMAIN_SCHED_FIELD_LENGTH</pre><p>Macro providing the field length of <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a></p>
<h3><a name="VIR_GET_CPUMAP" id="VIR_GET_CPUMAP"></a>Macro: VIR_GET_CPUMAP</h3><pre>#define VIR_GET_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a> macro returns a pointer to the cpumap of the specified vcpu from cpumaps array.</p>
<h3><a name="VIR_NODEINFO_MAXCPUS" id="VIR_NODEINFO_MAXCPUS"></a>Macro: VIR_NODEINFO_MAXCPUS</h3><pre>#define VIR_NODEINFO_MAXCPUS</pre><p>This macro is to calculate the total number of CPUs supported but not necessary active in the host.</p>
<h3><a name="VIR_UNUSE_CPU" id="VIR_UNUSE_CPU"></a>Macro: VIR_UNUSE_CPU</h3><pre>#define VIR_UNUSE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro reset the bit (CPU not usable) of the related cpu in cpumap.</p>
<h3><a name="VIR_USE_CPU" id="VIR_USE_CPU"></a>Macro: VIR_USE_CPU</h3><pre>#define VIR_USE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro set the bit (CPU usable) of the related cpu in cpumap.</p>
<h3><a name="VIR_UUID_BUFLEN" id="VIR_UUID_BUFLEN"></a>Macro: VIR_UUID_BUFLEN</h3><pre>#define VIR_UUID_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUID()</p>
<h3><a name="VIR_UUID_STRING_BUFLEN" id="VIR_UUID_STRING_BUFLEN"></a>Macro: VIR_UUID_STRING_BUFLEN</h3><pre>#define VIR_UUID_STRING_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUIDString()</p>
<h3><a name="virConnect" id="virConnect">Structure virConnect</a></h3><pre class="programlisting">Structure virConnect<br />struct _virConnect {
The content of this structure is not made public by the API.
}</pre><h3><a name="virConnectAuth" id="virConnectAuth">Structure virConnectAuth</a></h3><pre class="programlisting">Structure virConnectAuth<br />struct _virConnectAuth {
int * credtype : List of supported virConnectCredentialT
unsigned int ncredtype
<a href="libvirt-libvirt.html#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a> cb : Callback used to collect credentials
void * cbdata
}</pre><h3><a name="virConnectCredential" id="virConnectCredential">Structure virConnectCredential</a></h3><pre class="programlisting">Structure virConnectCredential<br />struct _virConnectCredential {
int type : One of <a href="libvirt-libvirt.html#virConnectCredentialType">virConnectCredentialType</a> constan
const char * prompt : Prompt to show to user
const char * challenge : Additional challenge to show
const char * defresult : Optional default result
char * result : Result to be filled with user response
unsigned int resultlen : Length of the result
}</pre><h3>Enum <a name="virConnectCredentialType" id="virConnectCredentialType">virConnectCredentialType</a></h3><pre class="programlisting">Enum virConnectCredentialType {
<a name="VIR_CRED_USERNAME" id="VIR_CRED_USERNAME">VIR_CRED_USERNAME</a> = 1 : Identity to act as
<a name="VIR_CRED_AUTHNAME" id="VIR_CRED_AUTHNAME">VIR_CRED_AUTHNAME</a> = 2 : Identify to authorize as
<a name="VIR_CRED_LANGUAGE" id="VIR_CRED_LANGUAGE">VIR_CRED_LANGUAGE</a> = 3 : RFC 1766 languages, comma separated
<a name="VIR_CRED_CNONCE" id="VIR_CRED_CNONCE">VIR_CRED_CNONCE</a> = 4 : client supplies a nonce
<a name="VIR_CRED_PASSPHRASE" id="VIR_CRED_PASSPHRASE">VIR_CRED_PASSPHRASE</a> = 5 : Passphrase secret
<a name="VIR_CRED_ECHOPROMPT" id="VIR_CRED_ECHOPROMPT">VIR_CRED_ECHOPROMPT</a> = 6 : Challenge response
<a name="VIR_CRED_NOECHOPROMPT" id="VIR_CRED_NOECHOPROMPT">VIR_CRED_NOECHOPROMPT</a> = 7 : Challenge response
<a name="VIR_CRED_REALM" id="VIR_CRED_REALM">VIR_CRED_REALM</a> = 8 : Authentication realm
<a name="VIR_CRED_EXTERNAL" id="VIR_CRED_EXTERNAL">VIR_CRED_EXTERNAL</a> = 9 : Externally managed credential More may be added - expect the unexpected
int <a href="#virConnectClose">virConnectClose</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
char * <a href="#virConnectGetCapabilities">virConnectGetCapabilities</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
char * <a href="#virConnectGetHostname">virConnectGetHostname</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectGetMaxVcpus">virConnectGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)
const char * <a href="#virConnectGetType">virConnectGetType</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
char * <a href="#virConnectGetURI">virConnectGetURI</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectGetVersion">virConnectGetVersion</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer)
int <a href="#virConnectListDefinedDomains">virConnectListDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectListDefinedNetworks">virConnectListDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectListDefinedStoragePools">virConnectListDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectListDomains">virConnectListDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids)
int <a href="#virConnectListNetworks">virConnectListNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectListStoragePools">virConnectListStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectNumOfDefinedDomains">virConnectNumOfDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfDefinedNetworks">virConnectNumOfDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfDefinedStoragePools">virConnectNumOfDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfDomains">virConnectNumOfDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfNetworks">virConnectNumOfNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfStoragePools">virConnectNumOfStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpen">virConnectOpen</a> (const char * name)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenAuth">virConnectOpenAuth</a> (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenReadOnly">virConnectOpenReadOnly</a> (const char * name)
int <a href="#virDomainAttachDevice">virDomainAttachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)
int <a href="#virDomainBlockStats">virDomainBlockStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size)
int <a href="#virDomainCoreDump">virDomainCoreDump</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags)
int <a href="#virDomainCreate">virDomainCreate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainCreateLinux">virDomainCreateLinux</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainDefineXML">virDomainDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)
int <a href="#virDomainDestroy">virDomainDestroy</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainDetachDevice">virDomainDetachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)
int <a href="#virDomainFree">virDomainFree</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainGetAutostart">virDomainGetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virDomainGetConnect">virDomainGetConnect</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom)
unsigned int <a href="#virDomainGetID">virDomainGetID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainGetInfo">virDomainGetInfo</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info)
unsigned long <a href="#virDomainGetMaxMemory">virDomainGetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainGetMaxVcpus">virDomainGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
const char * <a href="#virDomainGetName">virDomainGetName</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
char * <a href="#virDomainGetOSType">virDomainGetOSType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainGetSchedulerParameters">virDomainGetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams)
char * <a href="#virDomainGetSchedulerType">virDomainGetSchedulerType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams)
int <a href="#virDomainGetUUID">virDomainGetUUID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid)
int <a href="#virDomainGetUUIDString">virDomainGetUUIDString</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf)
int <a href="#virDomainGetVcpus">virDomainGetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen)
char * <a href="#virDomainGetXMLDesc">virDomainGetXMLDesc</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags)
int <a href="#virDomainInterfaceStats">virDomainInterfaceStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByID">virDomainLookupByID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByName">virDomainLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUID">virDomainLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUIDString">virDomainLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainMigrate">virDomainMigrate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth)
int <a href="#virDomainPinVcpu">virDomainPinVcpu</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen)
int <a href="#virDomainReboot">virDomainReboot</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags)
int <a href="#virDomainRestore">virDomainRestore</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from)
int <a href="#virDomainResume">virDomainResume</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainSave">virDomainSave</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to)
int <a href="#virDomainSetAutostart">virDomainSetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart)
int <a href="#virDomainSetMaxMemory">virDomainSetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)
int <a href="#virDomainSetMemory">virDomainSetMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)
int <a href="#virDomainSetSchedulerParameters">virDomainSetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams)
int <a href="#virDomainSetVcpus">virDomainSetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus)
int <a href="#virDomainShutdown">virDomainShutdown</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainSuspend">virDomainSuspend</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainUndefine">virDomainUndefine</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virGetVersion">virGetVersion</a> (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer)
int <a href="#virInitialize">virInitialize</a> (void)
int <a href="#virNetworkCreate">virNetworkCreate</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkCreateXML">virNetworkCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkDefineXML">virNetworkDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)
int <a href="#virNetworkDestroy">virNetworkDestroy</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
int <a href="#virNetworkFree">virNetworkFree</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
int <a href="#virNetworkGetAutostart">virNetworkGetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart)
char * <a href="#virNetworkGetBridgeName">virNetworkGetBridgeName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virNetworkGetConnect">virNetworkGetConnect</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net)
const char * <a href="#virNetworkGetName">virNetworkGetName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
int <a href="#virNetworkGetUUID">virNetworkGetUUID</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid)
int <a href="#virNetworkGetUUIDString">virNetworkGetUUIDString</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf)
char * <a href="#virNetworkGetXMLDesc">virNetworkGetXMLDesc</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByName">virNetworkLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUID">virNetworkLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUIDString">virNetworkLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)
int <a href="#virNetworkSetAutostart">virNetworkSetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart)
int <a href="#virNetworkUndefine">virNetworkUndefine</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
int <a href="#virNodeGetCellsFreeMemory">virNodeGetCellsFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells)
unsigned long long <a href="#virNodeGetFreeMemory">virNodeGetFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virNodeGetInfo">virNodeGetInfo</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info)
int <a href="#virStoragePoolBuild">virStoragePoolBuild</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
int <a href="#virStoragePoolCreate">virStoragePoolCreate</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolCreateXML">virStoragePoolCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolDefineXML">virStoragePoolDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags)
int <a href="#virStoragePoolDelete">virStoragePoolDelete</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
int <a href="#virStoragePoolDestroy">virStoragePoolDestroy</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolFree">virStoragePoolFree</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolGetAutostart">virStoragePoolGetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStoragePoolGetConnect">virStoragePoolGetConnect</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolGetInfo">virStoragePoolGetInfo</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info)
const char * <a href="#virStoragePoolGetName">virStoragePoolGetName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolGetUUID">virStoragePoolGetUUID</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid)
int <a href="#virStoragePoolGetUUIDString">virStoragePoolGetUUIDString</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf)
char * <a href="#virStoragePoolGetXMLDesc">virStoragePoolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
int <a href="#virStoragePoolListVolumes">virStoragePoolListVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByName">virStoragePoolLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUID">virStoragePoolLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUIDString">virStoragePoolLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByVolume">virStoragePoolLookupByVolume</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
int <a href="#virStoragePoolNumOfVolumes">virStoragePoolNumOfVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolRefresh">virStoragePoolRefresh</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
int <a href="#virStoragePoolSetAutostart">virStoragePoolSetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart)
int <a href="#virStoragePoolUndefine">virStoragePoolUndefine</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolCreateXML">virStorageVolCreateXML</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags)
int <a href="#virStorageVolDelete">virStorageVolDelete</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)
int <a href="#virStorageVolFree">virStorageVolFree</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStorageVolGetConnect">virStorageVolGetConnect</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
int <a href="#virStorageVolGetInfo">virStorageVolGetInfo</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info)
const char * <a href="#virStorageVolGetKey">virStorageVolGetKey</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
const char * <a href="#virStorageVolGetName">virStorageVolGetName</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
char * <a href="#virStorageVolGetPath">virStorageVolGetPath</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
char * <a href="#virStorageVolGetXMLDesc">virStorageVolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)
<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByKey">virStorageVolLookupByKey</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key)
<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByName">virStorageVolLookupByName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)
<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByPath">virStorageVolLookupByPath</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)
</pre><h2>Description</h2><h3><a name="macros" id="macros">Macros</a></h3><h3><a name="LIBVIR_VERSION_NUMBER" id="LIBVIR_VERSION_NUMBER"><code>LIBVIR_VERSION_NUMBER</code></a></h3><pre>#define LIBVIR_VERSION_NUMBER</pre><p>Macro providing the version of the library as version * 1,000,000 + minor * 1000 + micro</p><h3><a name="VIR_COPY_CPUMAP" id="VIR_COPY_CPUMAP"><code>VIR_COPY_CPUMAP</code></a></h3><pre>#define VIR_COPY_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a> macro extract the cpumap of the specified vcpu from cpumaps array and copy it into cpumap to be used later by virDomainPinVcpu() API.</p><h3><a name="VIR_CPU_MAPLEN" id="VIR_CPU_MAPLEN"><code>VIR_CPU_MAPLEN</code></a></h3><pre>#define VIR_CPU_MAPLEN</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. It returns the length (in bytes) required to store the complete CPU map between a single virtual &amp; all physical CPUs of a domain.</p><h3><a name="VIR_CPU_USABLE" id="VIR_CPU_USABLE"><code>VIR_CPU_USABLE</code></a></h3><pre>#define VIR_CPU_USABLE</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() API. <a href="libvirt-libvirt.html#VIR_CPU_USABLE">VIR_CPU_USABLE</a> macro returns a non zero value (true) if the cpu is usable by the vcpu, and 0 otherwise.</p><h3><a name="VIR_DOMAIN_SCHED_FIELD_LENGTH" id="VIR_DOMAIN_SCHED_FIELD_LENGTH"><code>VIR_DOMAIN_SCHED_FIELD_LENGTH</code></a></h3><pre>#define VIR_DOMAIN_SCHED_FIELD_LENGTH</pre><p>Macro providing the field length of <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a></p><h3><a name="VIR_GET_CPUMAP" id="VIR_GET_CPUMAP"><code>VIR_GET_CPUMAP</code></a></h3><pre>#define VIR_GET_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a> macro returns a pointer to the cpumap of the specified vcpu from cpumaps array.</p><h3><a name="VIR_NODEINFO_MAXCPUS" id="VIR_NODEINFO_MAXCPUS"><code>VIR_NODEINFO_MAXCPUS</code></a></h3><pre>#define VIR_NODEINFO_MAXCPUS</pre><p>This macro is to calculate the total number of CPUs supported but not necessary active in the host.</p><h3><a name="VIR_UNUSE_CPU" id="VIR_UNUSE_CPU"><code>VIR_UNUSE_CPU</code></a></h3><pre>#define VIR_UNUSE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro reset the bit (CPU not usable) of the related cpu in cpumap.</p><h3><a name="VIR_USE_CPU" id="VIR_USE_CPU"><code>VIR_USE_CPU</code></a></h3><pre>#define VIR_USE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro set the bit (CPU usable) of the related cpu in cpumap.</p><h3><a name="VIR_UUID_BUFLEN" id="VIR_UUID_BUFLEN"><code>VIR_UUID_BUFLEN</code></a></h3><pre>#define VIR_UUID_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUID()</p><h3><a name="VIR_UUID_STRING_BUFLEN" id="VIR_UUID_STRING_BUFLEN"><code>VIR_UUID_STRING_BUFLEN</code></a></h3><pre>#define VIR_UUID_STRING_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUIDString()</p><h3><a name="types" id="types">Types</a></h3><h3><a name="virConnect" id="virConnect"><code>virConnect</code></a></h3><div class="api"><pre>struct virConnect{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre><h3>Enum <a name="virConnectFlags" id="virConnectFlags">virConnectFlags</a></h3><pre class="programlisting">Enum virConnectFlags {
<a name="VIR_CONNECT_RO" id="VIR_CONNECT_RO">VIR_CONNECT_RO</a> = 1 : A readonly connection
</pre></div><h3><a name="virConnectAuth" id="virConnectAuth"><code>virConnectAuth</code></a></h3><div class="api"><pre>struct virConnectAuth{
</pre><table><tr><td>int *</td><td>credtype</td><td> : List of supported <a href="libvirt-libvirt.html#virConnectCredentialType">virConnectCredentialType</a> values</td></tr><tr><td>unsigned int</td><td>ncredtype</td></tr><tr><td><a href="libvirt-libvirt.html#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a></td><td>cb</td><td> : Callback used to collect credentials</td></tr><tr><td>void *</td><td>cbdata</td></tr></table><pre>
}
</pre>
a virConnectPtr is pointer to a virConnect private structure, this is the type used to reference a connection to the Xen Hypervisor in the API.
<h3><a name="virDomain" id="virDomain">Structure virDomain</a></h3><pre class="programlisting">Structure virDomain<br />struct _virDomain {
The content of this structure is not made public by the API.
}</pre>
A pointer to a virDomainBlockStats structure
<h3><a name="virDomainBlockStatsStruct" id="virDomainBlockStatsStruct">Structure virDomainBlockStatsStruct</a></h3><pre class="programlisting">Structure virDomainBlockStatsStruct<br />struct _virDomainBlockStats {
long long rd_req : number of read requests
long long rd_bytes : number of read bytes
long long wr_req : number of write requests
long long wr_bytes : number of written bytes
long long errs : In Xen this returns the mysterious 'oo_
}</pre><h3>Enum <a name="virDomainCreateFlags" id="virDomainCreateFlags">virDomainCreateFlags</a></h3><pre class="programlisting">Enum virDomainCreateFlags {
<a name="VIR_DOMAIN_NONE" id="VIR_DOMAIN_NONE">VIR_DOMAIN_NONE</a> = 0
</pre></div><h3><a name="virConnectCredential" id="virConnectCredential"><code>virConnectCredential</code></a></h3><div class="api"><pre>struct virConnectCredential{
</pre><table><tr><td>int</td><td>type</td><td> : One of <a href="libvirt-libvirt.html#virConnectCredentialType">virConnectCredentialType</a> constants</td></tr><tr><td>const char *</td><td>prompt</td><td> : Prompt to show to user</td></tr><tr><td>const char *</td><td>challenge</td><td> : Additional challenge to show</td></tr><tr><td>const char *</td><td>defresult</td><td> : Optional default result</td></tr><tr><td>char *</td><td>result</td><td> : Result to be filled with user response (or defresult)</td></tr><tr><td>unsigned int</td><td>resultlen</td><td> : Length of the result</td></tr></table><pre>
}
</pre><h3><a name="virDomainInfo" id="virDomainInfo">Structure virDomainInfo</a></h3><pre class="programlisting">Structure virDomainInfo<br />struct _virDomainInfo {
unsigned char state : the running state, one of virDomainFlag
unsigned long maxMem : the maximum memory in KBytes allowed
unsigned long memory : the memory in KBytes used by the domain
unsigned short nrVirtCpu : the number of virtual CPUs for the doma
unsigned long long cpuTime : the CPU time used in nanoseconds
}</pre>
a virDomainInfoPtr is a pointer to a virDomainInfo structure.
A pointer to a virDomainInterfaceStats structure
<h3><a name="virDomainInterfaceStatsStruct" id="virDomainInterfaceStatsStruct">Structure virDomainInterfaceStatsStruct</a></h3><pre class="programlisting">Structure virDomainInterfaceStatsStruct<br />struct _virDomainInterfaceStats {
long long rx_bytes
long long rx_packets
long long rx_errs
long long rx_drop
long long tx_bytes
long long tx_packets
long long tx_errs
long long tx_drop
}</pre><h3>Enum <a name="virDomainMigrateFlags" id="virDomainMigrateFlags">virDomainMigrateFlags</a></h3><pre class="programlisting">Enum virDomainMigrateFlags {
<a name="VIR_MIGRATE_LIVE" id="VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a> = 1 : live migration
</pre></div><h3><a name="virConnectCredentialType" id="virConnectCredentialType"><code>virConnectCredentialType</code></a></h3><div class="api"><pre>enum virConnectCredentialType {
</pre><table><tr><td><a name="VIR_CRED_USERNAME" id="VIR_CRED_USERNAME">VIR_CRED_USERNAME</a></td><td> = </td><td>1</td><td> : Identity to act as</td></tr><tr><td><a name="VIR_CRED_AUTHNAME" id="VIR_CRED_AUTHNAME">VIR_CRED_AUTHNAME</a></td><td> = </td><td>2</td><td> : Identify to authorize as</td></tr><tr><td><a name="VIR_CRED_LANGUAGE" id="VIR_CRED_LANGUAGE">VIR_CRED_LANGUAGE</a></td><td> = </td><td>3</td><td> : RFC 1766 languages, comma separated</td></tr><tr><td><a name="VIR_CRED_CNONCE" id="VIR_CRED_CNONCE">VIR_CRED_CNONCE</a></td><td> = </td><td>4</td><td> : client supplies a nonce</td></tr><tr><td><a name="VIR_CRED_PASSPHRASE" id="VIR_CRED_PASSPHRASE">VIR_CRED_PASSPHRASE</a></td><td> = </td><td>5</td><td> : Passphrase secret</td></tr><tr><td><a name="VIR_CRED_ECHOPROMPT" id="VIR_CRED_ECHOPROMPT">VIR_CRED_ECHOPROMPT</a></td><td> = </td><td>6</td><td> : Challenge response</td></tr><tr><td><a name="VIR_CRED_NOECHOPROMPT" id="VIR_CRED_NOECHOPROMPT">VIR_CRED_NOECHOPROMPT</a></td><td> = </td><td>7</td><td> : Challenge response</td></tr><tr><td><a name="VIR_CRED_REALM" id="VIR_CRED_REALM">VIR_CRED_REALM</a></td><td> = </td><td>8</td><td> : Authentication realm</td></tr><tr><td><a name="VIR_CRED_EXTERNAL" id="VIR_CRED_EXTERNAL">VIR_CRED_EXTERNAL</a></td><td> = </td><td>9</td><td> : Externally managed credential More may be added - expect the unexpected</td></tr></table><pre>}
</pre></div><h3><a name="virConnectFlags" id="virConnectFlags"><code>virConnectFlags</code></a></h3><div class="api"><pre>enum virConnectFlags {
</pre><table><tr><td><a name="VIR_CONNECT_RO" id="VIR_CONNECT_RO">VIR_CONNECT_RO</a></td><td> = </td><td>1</td><td> : A readonly connection</td></tr></table><pre>}
</pre></div><h3><a name="virDomain" id="virDomain"><code>virDomain</code></a></h3><div class="api"><pre>struct virDomain{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre>
a virDomainPtr is pointer to a virDomain private structure, this is the type used to reference a Xen domain in the API.
<h3>Enum <a name="virDomainState" id="virDomainState">virDomainState</a></h3><pre class="programlisting">Enum virDomainState {
<a name="VIR_DOMAIN_NOSTATE" id="VIR_DOMAIN_NOSTATE">VIR_DOMAIN_NOSTATE</a> = 0 : no state
<a name="VIR_DOMAIN_RUNNING" id="VIR_DOMAIN_RUNNING">VIR_DOMAIN_RUNNING</a> = 1 : the domain is running
<a name="VIR_DOMAIN_BLOCKED" id="VIR_DOMAIN_BLOCKED">VIR_DOMAIN_BLOCKED</a> = 2 : the domain is blocked on resource
<a name="VIR_DOMAIN_PAUSED" id="VIR_DOMAIN_PAUSED">VIR_DOMAIN_PAUSED</a> = 3 : the domain is paused by user
<a name="VIR_DOMAIN_SHUTDOWN" id="VIR_DOMAIN_SHUTDOWN">VIR_DOMAIN_SHUTDOWN</a> = 4 : the domain is being shut down
<a name="VIR_DOMAIN_SHUTOFF" id="VIR_DOMAIN_SHUTOFF">VIR_DOMAIN_SHUTOFF</a> = 5 : the domain is shut off
<a name="VIR_DOMAIN_CRASHED" id="VIR_DOMAIN_CRASHED">VIR_DOMAIN_CRASHED</a> = 6 : the domain is crashed
</pre></div><h3><a name="virDomainBlockStatsStruct" id="virDomainBlockStatsStruct"><code>virDomainBlockStatsStruct</code></a></h3><div class="api"><pre>struct virDomainBlockStatsStruct{
</pre><table><tr><td>long long</td><td>rd_req</td><td> : number of read requests</td></tr><tr><td>long long</td><td>rd_bytes</td><td> : number of read bytes</td></tr><tr><td>long long</td><td>wr_req</td><td> : number of write requests</td></tr><tr><td>long long</td><td>wr_bytes</td><td> : number of written bytes</td></tr><tr><td>long long</td><td>errs</td><td> : In Xen this returns the mysterious 'oo_req'.</td></tr></table><pre>
}
</pre><h3>Enum <a name="virDomainXMLFlags" id="virDomainXMLFlags">virDomainXMLFlags</a></h3><pre class="programlisting">Enum virDomainXMLFlags {
<a name="VIR_DOMAIN_XML_SECURE" id="VIR_DOMAIN_XML_SECURE">VIR_DOMAIN_XML_SECURE</a> = 1 : dump security sensitive information too
<a name="VIR_DOMAIN_XML_INACTIVE" id="VIR_DOMAIN_XML_INACTIVE">VIR_DOMAIN_XML_INACTIVE</a> = 2 : dump inactive domain information
</pre></div><h3><a name="virDomainCreateFlags" id="virDomainCreateFlags"><code>virDomainCreateFlags</code></a></h3><div class="api"><pre>enum virDomainCreateFlags {
</pre><table><tr><td><a name="VIR_DOMAIN_NONE" id="VIR_DOMAIN_NONE">VIR_DOMAIN_NONE</a></td><td> = </td><td>0</td></tr></table><pre>}
</pre></div><h3><a name="virDomainInfo" id="virDomainInfo"><code>virDomainInfo</code></a></h3><div class="api"><pre>struct virDomainInfo{
</pre><table><tr><td>unsigned char</td><td>state</td><td> : the running state, one of virDomainFlags</td></tr><tr><td>unsigned long</td><td>maxMem</td><td> : the maximum memory in KBytes allowed</td></tr><tr><td>unsigned long</td><td>memory</td><td> : the memory in KBytes used by the domain</td></tr><tr><td>unsigned short</td><td>nrVirtCpu</td><td> : the number of virtual CPUs for the domain</td></tr><tr><td>unsigned long long</td><td>cpuTime</td><td> : the CPU time used in nanoseconds</td></tr></table><pre>
}
</pre><h3><a name="virNetwork" id="virNetwork">Structure virNetwork</a></h3><pre class="programlisting">Structure virNetwork<br />struct _virNetwork {
The content of this structure is not made public by the API.
}</pre>
a virNetworkPtr is pointer to a virNetwork private structure, this is the type used to reference a virtual network in the API.
<h3><a name="virNodeInfo" id="virNodeInfo">Structure virNodeInfo</a></h3><pre class="programlisting">Structure virNodeInfo<br />struct _virNodeInfo {
charmodel[32] model : string indicating the CPU model
unsigned long memory : memory size in kilobytes
unsigned int cpus : the number of active CPUs
unsigned int mhz : expected CPU frequency
unsigned int nodes : the number of NUMA cell, 1 for uniform
unsigned int sockets : number of CPU socket per node
unsigned int cores : number of core per socket
unsigned int threads : number of threads per core
}</pre>
a virNodeInfoPtr is a pointer to a virNodeInfo structure.
<h3><a name="virSchedParameter" id="virSchedParameter">Structure virSchedParameter</a></h3><pre class="programlisting">Structure virSchedParameter<br />struct _virSchedParameter {
charfield[VIR_DOMAIN_SCHED_FIELD_LENGTH] field : parameter name
int type : parameter type
}</pre>
a virSchedParameterPtr is a pointer to a virSchedParameter structure.
<h3>Enum <a name="virSchedParameterType" id="virSchedParameterType">virSchedParameterType</a></h3><pre class="programlisting">Enum virSchedParameterType {
<a name="VIR_DOMAIN_SCHED_FIELD_INT" id="VIR_DOMAIN_SCHED_FIELD_INT">VIR_DOMAIN_SCHED_FIELD_INT</a> = 1 : integer case
<a name="VIR_DOMAIN_SCHED_FIELD_UINT" id="VIR_DOMAIN_SCHED_FIELD_UINT">VIR_DOMAIN_SCHED_FIELD_UINT</a> = 2 : unsigned integer case
<a name="VIR_DOMAIN_SCHED_FIELD_LLONG" id="VIR_DOMAIN_SCHED_FIELD_LLONG">VIR_DOMAIN_SCHED_FIELD_LLONG</a> = 3 : long long case
<a name="VIR_DOMAIN_SCHED_FIELD_ULLONG" id="VIR_DOMAIN_SCHED_FIELD_ULLONG">VIR_DOMAIN_SCHED_FIELD_ULLONG</a> = 4 : unsigned long long case
<a name="VIR_DOMAIN_SCHED_FIELD_DOUBLE" id="VIR_DOMAIN_SCHED_FIELD_DOUBLE">VIR_DOMAIN_SCHED_FIELD_DOUBLE</a> = 5 : double case
<a name="VIR_DOMAIN_SCHED_FIELD_BOOLEAN" id="VIR_DOMAIN_SCHED_FIELD_BOOLEAN">VIR_DOMAIN_SCHED_FIELD_BOOLEAN</a> = 6 : boolean(character) case
</pre></div><h3><a name="virDomainInterfaceStatsStruct" id="virDomainInterfaceStatsStruct"><code>virDomainInterfaceStatsStruct</code></a></h3><div class="api"><pre>struct virDomainInterfaceStatsStruct{
</pre><table><tr><td>long long</td><td>rx_bytes</td></tr><tr><td>long long</td><td>rx_packets</td></tr><tr><td>long long</td><td>rx_errs</td></tr><tr><td>long long</td><td>rx_drop</td></tr><tr><td>long long</td><td>tx_bytes</td></tr><tr><td>long long</td><td>tx_packets</td></tr><tr><td>long long</td><td>tx_errs</td></tr><tr><td>long long</td><td>tx_drop</td></tr></table><pre>
}
</pre><h3><a name="virStoragePool" id="virStoragePool">Structure virStoragePool</a></h3><pre class="programlisting">Structure virStoragePool<br />struct _virStoragePool {
The content of this structure is not made public by the API.
}</pre><h3>Enum <a name="virStoragePoolBuildFlags" id="virStoragePoolBuildFlags">virStoragePoolBuildFlags</a></h3><pre class="programlisting">Enum virStoragePoolBuildFlags {
<a name="VIR_STORAGE_POOL_BUILD_NEW" id="VIR_STORAGE_POOL_BUILD_NEW">VIR_STORAGE_POOL_BUILD_NEW</a> = 0 : Regular build from scratch
<a name="VIR_STORAGE_POOL_BUILD_REPAIR" id="VIR_STORAGE_POOL_BUILD_REPAIR">VIR_STORAGE_POOL_BUILD_REPAIR</a> = 1 : Repair / reinitialize
<a name="VIR_STORAGE_POOL_BUILD_RESIZE" id="VIR_STORAGE_POOL_BUILD_RESIZE">VIR_STORAGE_POOL_BUILD_RESIZE</a> = 2 : Extend existing pool
</pre></div><h3><a name="virDomainMigrateFlags" id="virDomainMigrateFlags"><code>virDomainMigrateFlags</code></a></h3><div class="api"><pre>enum virDomainMigrateFlags {
</pre><table><tr><td><a name="VIR_MIGRATE_LIVE" id="VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a></td><td> = </td><td>1</td><td> : live migration</td></tr></table><pre>}
</pre></div><h3><a name="virDomainState" id="virDomainState"><code>virDomainState</code></a></h3><div class="api"><pre>enum virDomainState {
</pre><table><tr><td><a name="VIR_DOMAIN_NOSTATE" id="VIR_DOMAIN_NOSTATE">VIR_DOMAIN_NOSTATE</a></td><td> = </td><td>0</td><td> : no state</td></tr><tr><td><a name="VIR_DOMAIN_RUNNING" id="VIR_DOMAIN_RUNNING">VIR_DOMAIN_RUNNING</a></td><td> = </td><td>1</td><td> : the domain is running</td></tr><tr><td><a name="VIR_DOMAIN_BLOCKED" id="VIR_DOMAIN_BLOCKED">VIR_DOMAIN_BLOCKED</a></td><td> = </td><td>2</td><td> : the domain is blocked on resource</td></tr><tr><td><a name="VIR_DOMAIN_PAUSED" id="VIR_DOMAIN_PAUSED">VIR_DOMAIN_PAUSED</a></td><td> = </td><td>3</td><td> : the domain is paused by user</td></tr><tr><td><a name="VIR_DOMAIN_SHUTDOWN" id="VIR_DOMAIN_SHUTDOWN">VIR_DOMAIN_SHUTDOWN</a></td><td> = </td><td>4</td><td> : the domain is being shut down</td></tr><tr><td><a name="VIR_DOMAIN_SHUTOFF" id="VIR_DOMAIN_SHUTOFF">VIR_DOMAIN_SHUTOFF</a></td><td> = </td><td>5</td><td> : the domain is shut off</td></tr><tr><td><a name="VIR_DOMAIN_CRASHED" id="VIR_DOMAIN_CRASHED">VIR_DOMAIN_CRASHED</a></td><td> = </td><td>6</td><td> : the domain is crashed</td></tr></table><pre>}
</pre></div><h3><a name="virDomainXMLFlags" id="virDomainXMLFlags"><code>virDomainXMLFlags</code></a></h3><div class="api"><pre>enum virDomainXMLFlags {
</pre><table><tr><td><a name="VIR_DOMAIN_XML_SECURE" id="VIR_DOMAIN_XML_SECURE">VIR_DOMAIN_XML_SECURE</a></td><td> = </td><td>1</td><td> : dump security sensitive information too</td></tr><tr><td><a name="VIR_DOMAIN_XML_INACTIVE" id="VIR_DOMAIN_XML_INACTIVE">VIR_DOMAIN_XML_INACTIVE</a></td><td> = </td><td>2</td><td> : dump inactive domain information</td></tr></table><pre>}
</pre></div><h3><a name="virNetwork" id="virNetwork"><code>virNetwork</code></a></h3><div class="api"><pre>struct virNetwork{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre><h3>Enum <a name="virStoragePoolDeleteFlags" id="virStoragePoolDeleteFlags">virStoragePoolDeleteFlags</a></h3><pre class="programlisting">Enum virStoragePoolDeleteFlags {
<a name="VIR_STORAGE_POOL_DELETE_NORMAL" id="VIR_STORAGE_POOL_DELETE_NORMAL">VIR_STORAGE_POOL_DELETE_NORMAL</a> = 0 : Delete metadata only (fast)
<a name="VIR_STORAGE_POOL_DELETE_ZEROED" id="VIR_STORAGE_POOL_DELETE_ZEROED">VIR_STORAGE_POOL_DELETE_ZEROED</a> = 1 : Clear all data to zeros (slow)
</pre></div><h3><a name="virNodeInfo" id="virNodeInfo"><code>virNodeInfo</code></a></h3><div class="api"><pre>struct virNodeInfo{
</pre><table><tr><td>charmodel[32]</td><td>model</td><td> : string indicating the CPU model</td></tr><tr><td>unsigned long</td><td>memory</td><td> : memory size in kilobytes</td></tr><tr><td>unsigned int</td><td>cpus</td><td> : the number of active CPUs</td></tr><tr><td>unsigned int</td><td>mhz</td><td> : expected CPU frequency</td></tr><tr><td>unsigned int</td><td>nodes</td><td> : the number of NUMA cell, 1 for uniform mem access</td></tr><tr><td>unsigned int</td><td>sockets</td><td> : number of CPU socket per node</td></tr><tr><td>unsigned int</td><td>cores</td><td> : number of core per socket</td></tr><tr><td>unsigned int</td><td>threads</td><td> : number of threads per core</td></tr></table><pre>
}
</pre><h3><a name="virStoragePoolInfo" id="virStoragePoolInfo">Structure virStoragePoolInfo</a></h3><pre class="programlisting">Structure virStoragePoolInfo<br />struct _virStoragePoolInfo {
int state : <a href="libvirt-libvirt.html#virStoragePoolState">virStoragePoolState</a> flags
unsigned long long capacity : Logical size bytes
unsigned long long allocation : Current allocation bytes
unsigned long long available : Remaining free space bytes
}</pre>
a virStoragePoolPtr is pointer to a virStoragePool private structure, this is the type used to reference a storage pool in the API.
<h3>Enum <a name="virStoragePoolState" id="virStoragePoolState">virStoragePoolState</a></h3><pre class="programlisting">Enum virStoragePoolState {
<a name="VIR_STORAGE_POOL_INACTIVE" id="VIR_STORAGE_POOL_INACTIVE">VIR_STORAGE_POOL_INACTIVE</a> = 0 : Not running
<a name="VIR_STORAGE_POOL_BUILDING" id="VIR_STORAGE_POOL_BUILDING">VIR_STORAGE_POOL_BUILDING</a> = 1 : Initializing pool, not available
<a name="VIR_STORAGE_POOL_RUNNING" id="VIR_STORAGE_POOL_RUNNING">VIR_STORAGE_POOL_RUNNING</a> = 2 : Running normally
<a name="VIR_STORAGE_POOL_DEGRADED" id="VIR_STORAGE_POOL_DEGRADED">VIR_STORAGE_POOL_DEGRADED</a> = 3 : Running degraded
</pre></div><h3><a name="virSchedParameter" id="virSchedParameter"><code>virSchedParameter</code></a></h3><div class="api"><pre>struct virSchedParameter{
</pre><table><tr><td>charfield[VIR_DOMAIN_SCHED_FIELD_LENGTH]</td><td>field</td><td> : parameter name</td></tr><tr><td>int</td><td>type</td><td> : parameter type</td></tr></table><pre>
}
</pre><h3><a name="virStorageVol" id="virStorageVol">Structure virStorageVol</a></h3><pre class="programlisting">Structure virStorageVol<br />struct _virStorageVol {
The content of this structure is not made public by the API.
}</pre><h3>Enum <a name="virStorageVolDeleteFlags" id="virStorageVolDeleteFlags">virStorageVolDeleteFlags</a></h3><pre class="programlisting">Enum virStorageVolDeleteFlags {
<a name="VIR_STORAGE_VOL_DELETE_NORMAL" id="VIR_STORAGE_VOL_DELETE_NORMAL">VIR_STORAGE_VOL_DELETE_NORMAL</a> = 0 : Delete metadata only (fast)
<a name="VIR_STORAGE_VOL_DELETE_ZEROED" id="VIR_STORAGE_VOL_DELETE_ZEROED">VIR_STORAGE_VOL_DELETE_ZEROED</a> = 1 : Clear all data to zeros (slow)
</pre></div><h3><a name="virSchedParameterType" id="virSchedParameterType"><code>virSchedParameterType</code></a></h3><div class="api"><pre>enum virSchedParameterType {
</pre><table><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_INT" id="VIR_DOMAIN_SCHED_FIELD_INT">VIR_DOMAIN_SCHED_FIELD_INT</a></td><td> = </td><td>1</td><td> : integer case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_UINT" id="VIR_DOMAIN_SCHED_FIELD_UINT">VIR_DOMAIN_SCHED_FIELD_UINT</a></td><td> = </td><td>2</td><td> : unsigned integer case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_LLONG" id="VIR_DOMAIN_SCHED_FIELD_LLONG">VIR_DOMAIN_SCHED_FIELD_LLONG</a></td><td> = </td><td>3</td><td> : long long case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_ULLONG" id="VIR_DOMAIN_SCHED_FIELD_ULLONG">VIR_DOMAIN_SCHED_FIELD_ULLONG</a></td><td> = </td><td>4</td><td> : unsigned long long case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_DOUBLE" id="VIR_DOMAIN_SCHED_FIELD_DOUBLE">VIR_DOMAIN_SCHED_FIELD_DOUBLE</a></td><td> = </td><td>5</td><td> : double case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_BOOLEAN" id="VIR_DOMAIN_SCHED_FIELD_BOOLEAN">VIR_DOMAIN_SCHED_FIELD_BOOLEAN</a></td><td> = </td><td>6</td><td> : boolean(character) case</td></tr></table><pre>}
</pre></div><h3><a name="virStoragePool" id="virStoragePool"><code>virStoragePool</code></a></h3><div class="api"><pre>struct virStoragePool{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre><h3><a name="virStorageVolInfo" id="virStorageVolInfo">Structure virStorageVolInfo</a></h3><pre class="programlisting">Structure virStorageVolInfo<br />struct _virStorageVolInfo {
int type : <a href="libvirt-libvirt.html#virStorageVolType">virStorageVolType</a> flags
unsigned long long capacity : Logical size bytes
unsigned long long allocation : Current allocation bytes
}</pre>
a virStorageVolPtr is pointer to a virStorageVol private structure, this is the type used to reference a storage volume in the API.
<h3>Enum <a name="virStorageVolType" id="virStorageVolType">virStorageVolType</a></h3><pre class="programlisting">Enum virStorageVolType {
<a name="VIR_STORAGE_VOL_FILE" id="VIR_STORAGE_VOL_FILE">VIR_STORAGE_VOL_FILE</a> = 0 : Regular file based volumes
<a name="VIR_STORAGE_VOL_BLOCK" id="VIR_STORAGE_VOL_BLOCK">VIR_STORAGE_VOL_BLOCK</a> = 1 : Block based volumes
</pre></div><h3><a name="virStoragePoolBuildFlags" id="virStoragePoolBuildFlags"><code>virStoragePoolBuildFlags</code></a></h3><div class="api"><pre>enum virStoragePoolBuildFlags {
</pre><table><tr><td><a name="VIR_STORAGE_POOL_BUILD_NEW" id="VIR_STORAGE_POOL_BUILD_NEW">VIR_STORAGE_POOL_BUILD_NEW</a></td><td> = </td><td>0</td><td> : Regular build from scratch</td></tr><tr><td><a name="VIR_STORAGE_POOL_BUILD_REPAIR" id="VIR_STORAGE_POOL_BUILD_REPAIR">VIR_STORAGE_POOL_BUILD_REPAIR</a></td><td> = </td><td>1</td><td> : Repair / reinitialize</td></tr><tr><td><a name="VIR_STORAGE_POOL_BUILD_RESIZE" id="VIR_STORAGE_POOL_BUILD_RESIZE">VIR_STORAGE_POOL_BUILD_RESIZE</a></td><td> = </td><td>2</td><td> : Extend existing pool</td></tr></table><pre>}
</pre></div><h3><a name="virStoragePoolDeleteFlags" id="virStoragePoolDeleteFlags"><code>virStoragePoolDeleteFlags</code></a></h3><div class="api"><pre>enum virStoragePoolDeleteFlags {
</pre><table><tr><td><a name="VIR_STORAGE_POOL_DELETE_NORMAL" id="VIR_STORAGE_POOL_DELETE_NORMAL">VIR_STORAGE_POOL_DELETE_NORMAL</a></td><td> = </td><td>0</td><td> : Delete metadata only (fast)</td></tr><tr><td><a name="VIR_STORAGE_POOL_DELETE_ZEROED" id="VIR_STORAGE_POOL_DELETE_ZEROED">VIR_STORAGE_POOL_DELETE_ZEROED</a></td><td> = </td><td>1</td><td> : Clear all data to zeros (slow)</td></tr></table><pre>}
</pre></div><h3><a name="virStoragePoolInfo" id="virStoragePoolInfo"><code>virStoragePoolInfo</code></a></h3><div class="api"><pre>struct virStoragePoolInfo{
</pre><table><tr><td>int</td><td>state</td><td> : <a href="libvirt-libvirt.html#virStoragePoolState">virStoragePoolState</a> flags</td></tr><tr><td>unsigned long long</td><td>capacity</td><td> : Logical size bytes</td></tr><tr><td>unsigned long long</td><td>allocation</td><td> : Current allocation bytes</td></tr><tr><td>unsigned long long</td><td>available</td><td> : Remaining free space bytes</td></tr></table><pre>
}
</pre><h3><a name="virVcpuInfo" id="virVcpuInfo">Structure virVcpuInfo</a></h3><pre class="programlisting">Structure virVcpuInfo<br />struct _virVcpuInfo {
unsigned int number : virtual CPU number
int state : value from <a href="libvirt-libvirt.html#virVcpuState">virVcpuState</a>
unsigned long long cpuTime : CPU time used, in nanoseconds
int cpu : real CPU number, or -1 if offline
}</pre><h3>Enum <a name="virVcpuState" id="virVcpuState">virVcpuState</a></h3><pre class="programlisting">Enum virVcpuState {
<a name="VIR_VCPU_OFFLINE" id="VIR_VCPU_OFFLINE">VIR_VCPU_OFFLINE</a> = 0 : the virtual CPU is offline
<a name="VIR_VCPU_RUNNING" id="VIR_VCPU_RUNNING">VIR_VCPU_RUNNING</a> = 1 : the virtual CPU is running
<a name="VIR_VCPU_BLOCKED" id="VIR_VCPU_BLOCKED">VIR_VCPU_BLOCKED</a> = 2 : the virtual CPU is blocked on resource
</pre></div><h3><a name="virStoragePoolState" id="virStoragePoolState"><code>virStoragePoolState</code></a></h3><div class="api"><pre>enum virStoragePoolState {
</pre><table><tr><td><a name="VIR_STORAGE_POOL_INACTIVE" id="VIR_STORAGE_POOL_INACTIVE">VIR_STORAGE_POOL_INACTIVE</a></td><td> = </td><td>0</td><td> : Not running</td></tr><tr><td><a name="VIR_STORAGE_POOL_BUILDING" id="VIR_STORAGE_POOL_BUILDING">VIR_STORAGE_POOL_BUILDING</a></td><td> = </td><td>1</td><td> : Initializing pool, not available</td></tr><tr><td><a name="VIR_STORAGE_POOL_RUNNING" id="VIR_STORAGE_POOL_RUNNING">VIR_STORAGE_POOL_RUNNING</a></td><td> = </td><td>2</td><td> : Running normally</td></tr><tr><td><a name="VIR_STORAGE_POOL_DEGRADED" id="VIR_STORAGE_POOL_DEGRADED">VIR_STORAGE_POOL_DEGRADED</a></td><td> = </td><td>3</td><td> : Running degraded</td></tr></table><pre>}
</pre></div><h3><a name="virStorageVol" id="virStorageVol"><code>virStorageVol</code></a></h3><div class="api"><pre>struct virStorageVol{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre><h3><a name="virConnectAuthCallbackPtr" id="virConnectAuthCallbackPtr"></a>Function type: virConnectAuthCallbackPtr</h3><pre class="programlisting">Function type: virConnectAuthCallbackPtr
int virConnectAuthCallbackPtr (<a href="libvirt-libvirt.html#virConnectCredentialPtr">virConnectCredentialPtr</a> cred, <br /> unsigned int ncred, <br /> void * cbdata)
</pre><p></p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>cred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>ncred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>cbdata</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><br />
<h3><a name="virConnectClose" id="virConnectClose"></a>Function: virConnectClose</h3><pre class="programlisting">int virConnectClose (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This function closes the connection to the Hypervisor. This should not be called if further interaction with the Hypervisor are needed especially if there is running domain which need further monitoring by the application.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectGetCapabilities" id="virConnectGetCapabilities"></a>Function: virConnectGetCapabilities</h3><pre class="programlisting">char * virConnectGetCapabilities (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides capabilities of the hypervisor / driver.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, or an XML string defining the capabilities. The client must free the returned string after use.</td></tr></tbody></table></div><h3><a name="virConnectGetHostname" id="virConnectGetHostname"></a>Function: virConnectGetHostname</h3><pre class="programlisting">char * virConnectGetHostname (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This returns the system hostname on which the hypervisor is running (the result of the gethostname(2) system call). If we are connected to a remote system, then this returns the hostname of the remote system.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the hostname which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetMaxVcpus" id="virConnectGetMaxVcpus"></a>Function: virConnectGetMaxVcpus</h3><pre class="programlisting">int virConnectGetMaxVcpus (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)<br />
</pre><p>Provides the maximum number of virtual CPUs supported for a guest VM of a specific type. The 'type' parameter here corresponds to the 'type' attribute in the &lt;domain&gt; element of the XML.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>value of the 'type' attribute in the &lt;domain&gt; element</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectGetType" id="virConnectGetType"></a>Function: virConnectGetType</h3><pre class="programlisting">const char * virConnectGetType (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Get the name of the Hypervisor software used.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a static zero terminated string otherwise. See also: http://www.redhat.com/archives/libvir-list/2007-February/msg00096.html</td></tr></tbody></table></div><h3><a name="virConnectGetURI" id="virConnectGetURI"></a>Function: virConnectGetURI</h3><pre class="programlisting">char * virConnectGetURI (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This returns the URI (name) of the hypervisor connection. Normally this is the same as or similar to the string passed to the virConnectOpen/virConnectOpenReadOnly call, but the driver may make the URI canonical. If name == NULL was passed to virConnectOpen, then the driver will return a non-NULL URI which can be used to connect to the same hypervisor later.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the URI string which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetVersion" id="virConnectGetVersion"></a>Function: virConnectGetVersion</h3><pre class="programlisting">int virConnectGetVersion (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer)<br />
</pre><p>Get the version level of the Hypervisor running. This may work only with hypervisor call, i.e. with privileged access to the hypervisor, not with a Read-Only connection.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>hvVer</tt></i>:</span></td><td>return value for the version of the running hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 otherwise. if the version can't be extracted by lack of capacities returns 0 and @hvVer is 0, otherwise @hvVer value is major * 1,000,000 + minor * 1,000 + release</td></tr></tbody></table></div><h3><a name="virConnectListDefinedDomains" id="virConnectListDefinedDomains"></a>Function: virConnectListDefinedDomains</h3><pre class="programlisting">int virConnectListDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>list the defined but inactive domains, stores the pointers to the names in @names</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedNetworks" id="virConnectListDefinedNetworks"></a>Function: virConnectListDefinedNetworks</h3><pre class="programlisting">int virConnectListDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>list the inactive networks, stores the pointers to the names in @names</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedStoragePools" id="virConnectListDefinedStoragePools"></a>Function: virConnectListDefinedStoragePools</h3><pre class="programlisting">int virConnectListDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Provides the list of names of inactive storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectListDomains" id="virConnectListDomains"></a>Function: virConnectListDomains</h3><pre class="programlisting">int virConnectListDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids)<br />
</pre><p>Collect the list of active domains, and store their ID in @maxids</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>ids</tt></i>:</span></td><td>array to collect the list of IDs of active domains</td></tr><tr><td><span class="term"><i><tt>maxids</tt></i>:</span></td><td>size of @ids</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListNetworks" id="virConnectListNetworks"></a>Function: virConnectListNetworks</h3><pre class="programlisting">int virConnectListNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Collect the list of active networks, and store their names in @names</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array to collect the list of names of active networks</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of @names</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListStoragePools" id="virConnectListStoragePools"></a>Function: virConnectListStoragePools</h3><pre class="programlisting">int virConnectListStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Provides the list of names of active storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedDomains" id="virConnectNumOfDefinedDomains"></a>Function: virConnectNumOfDefinedDomains</h3><pre class="programlisting">int virConnectNumOfDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of defined but inactive domains.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedNetworks" id="virConnectNumOfDefinedNetworks"></a>Function: virConnectNumOfDefinedNetworks</h3><pre class="programlisting">int virConnectNumOfDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of inactive networks.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedStoragePools" id="virConnectNumOfDefinedStoragePools"></a>Function: virConnectNumOfDefinedStoragePools</h3><pre class="programlisting">int virConnectNumOfDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of inactive storage pools</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDomains" id="virConnectNumOfDomains"></a>Function: virConnectNumOfDomains</h3><pre class="programlisting">int virConnectNumOfDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active domains.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfNetworks" id="virConnectNumOfNetworks"></a>Function: virConnectNumOfNetworks</h3><pre class="programlisting">int virConnectNumOfNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active networks.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of network found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfStoragePools" id="virConnectNumOfStoragePools"></a>Function: virConnectNumOfStoragePools</h3><pre class="programlisting">int virConnectNumOfStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active storage pools</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectOpen" id="virConnectOpen"></a>Function: virConnectOpen</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpen (const char * name)<br />
</pre><p>This function should be called first to get a connection to the Hypervisor and xen store</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenAuth" id="virConnectOpenAuth"></a>Function: virConnectOpenAuth</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenAuth (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags)<br />
</pre><p>This function should be called first to get a connection to the Hypervisor. If necessary, authentication will be performed fetching credentials via the callback</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>auth</tt></i>:</span></td><td>Authenticate callback parameters</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>Open flags</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenReadOnly" id="virConnectOpenReadOnly"></a>Function: virConnectOpenReadOnly</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenReadOnly (const char * name)<br />
</pre><p>This function should be called first to get a restricted connection to the library functionalities. The set of APIs usable are then restricted on the available methods to control the domains.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virDomainAttachDevice" id="virDomainAttachDevice"></a>Function: virDomainAttachDevice</h3><pre class="programlisting">int virDomainAttachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br />
</pre><p>Create a virtual device attachment to backend.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainBlockStats" id="virDomainBlockStats"></a>Function: virDomainBlockStats</h3><pre class="programlisting">int virDomainBlockStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size)<br />
</pre><p>This function returns block device (disk) stats for block devices attached to the domain. The path parameter is the name of the block device. Get this by calling <a href="libvirt-libvirt.html#virDomainGetXMLDesc">virDomainGetXMLDesc</a> and finding the &lt;target dev='...'&gt; attribute within //domain/devices/disk. (For example, "xvda"). Domains may have more than one block device. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the block device</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>block device stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCoreDump" id="virDomainCoreDump"></a>Function: virDomainCoreDump</h3><pre class="programlisting">int virDomainCoreDump (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags)<br />
</pre><p>This method will dump the core of a domain on a given file for analysis. Note that for remote Xen Daemon the file path will be interpreted in the remote host.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the core file</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags, currently unused</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCreate" id="virDomainCreate"></a>Function: virDomainCreate</h3><pre class="programlisting">int virDomainCreate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>launch a defined domain. If the call succeed the domain moves from the defined to the running domains pools.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainCreateLinux" id="virDomainCreateLinux"></a>Function: virDomainCreateLinux</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainCreateLinux (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br />
</pre><p>Launch a new Linux guest domain, based on an XML description similar to the one returned by virDomainGetXMLDesc() This function may requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>string containing an XML description of the domain</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>an optional set of virDomainFlags</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virDomainDefineXML" id="virDomainDefineXML"></a>Function: virDomainDefineXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br />
</pre><p>define a domain, but does not start it</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the domain, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the domain otherwise</td></tr></tbody></table></div><h3><a name="virDomainDestroy" id="virDomainDestroy"></a>Function: virDomainDestroy</h3><pre class="programlisting">int virDomainDestroy (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Destroy the domain object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. The data structure is freed and should not be used thereafter if the call does not return an error. This function may requires privileged access</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainDetachDevice" id="virDomainDetachDevice"></a>Function: virDomainDetachDevice</h3><pre class="programlisting">int virDomainDetachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br />
</pre><p>Destroy a virtual device attachment to backend.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainFree" id="virDomainFree"></a>Function: virDomainFree</h3><pre class="programlisting">int virDomainFree (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Free the domain object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetAutostart" id="virDomainGetAutostart"></a>Function: virDomainGetAutostart</h3><pre class="programlisting">int virDomainGetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart)<br />
</pre><p>Provides a boolean value indicating whether the domain configured to be automatically started when the host machine boots.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetConnect" id="virDomainGetConnect"></a>Function: virDomainGetConnect</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virDomainGetConnect (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom)<br />
</pre><p>Provides the connection pointer associated with a domain. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the domain object together.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to a domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetID" id="virDomainGetID"></a>Function: virDomainGetID</h3><pre class="programlisting">unsigned int virDomainGetID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the hypervisor ID number for the domain</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the domain ID number or (unsigned int) -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainGetInfo" id="virDomainGetInfo"></a>Function: virDomainGetInfo</h3><pre class="programlisting">int virDomainGetInfo (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info)<br />
</pre><p>Extract information about a domain. Note that if the connection used to get the domain is limited only a partial set of the information can be extracted.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxMemory" id="virDomainGetMaxMemory"></a>Function: virDomainGetMaxMemory</h3><pre class="programlisting">unsigned long virDomainGetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Retrieve the maximum amount of physical memory allocated to a domain. If domain is NULL, then this get the amount of memory reserved to Domain0 i.e. the domain where the application runs.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the memory size in kilobytes or 0 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxVcpus" id="virDomainGetMaxVcpus"></a>Function: virDomainGetMaxVcpus</h3><pre class="programlisting">int virDomainGetMaxVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Provides the maximum number of virtual CPUs supported for the guest VM. If the guest is inactive, this is basically the same as virConnectGetMaxVcpus. If the guest is running this will reflect the maximum number of virtual CPUs the guest was booted with.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetName" id="virDomainGetName"></a>Function: virDomainGetName</h3><pre class="programlisting">const char * virDomainGetName (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the public name for that domain</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the domain object.</td></tr></tbody></table></div><h3><a name="virDomainGetOSType" id="virDomainGetOSType"></a>Function: virDomainGetOSType</h3><pre class="programlisting">char * virDomainGetOSType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the type of domain operation system.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new string or NULL in case of error, the string must be freed by the caller.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerParameters" id="virDomainGetSchedulerParameters"></a>Function: virDomainGetSchedulerParameters</h3><pre class="programlisting">int virDomainGetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams)<br />
</pre><p>Get the scheduler parameters, the @params array will be filled with the values.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter object (return value)</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>pointer to number of scheduler parameter (this value should be same than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerType" id="virDomainGetSchedulerType"></a>Function: virDomainGetSchedulerType</h3><pre class="programlisting">char * virDomainGetSchedulerType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams)<br />
</pre><p>Get the scheduler type.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameters(return value)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error. The caller must free the returned string.</td></tr></tbody></table></div><h3><a name="virDomainGetUUID" id="virDomainGetUUID"></a>Function: virDomainGetUUID</h3><pre class="programlisting">int virDomainGetUUID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid)<br />
</pre><p>Get the UUID for a domain</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetUUIDString" id="virDomainGetUUIDString"></a>Function: virDomainGetUUIDString</h3><pre class="programlisting">int virDomainGetUUIDString (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf)<br />
</pre><p>Get the UUID for a domain as string. For more information about UUID see RFC4122.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetVcpus" id="virDomainGetVcpus"></a>Function: virDomainGetVcpus</h3><pre class="programlisting">int virDomainGetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen)<br />
</pre><p>Extract information about virtual CPUs of domain, store it in info array and also in cpumaps if this pointer isn't NULL.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to an array of <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> structures (OUT)</td></tr><tr><td><span class="term"><i><tt>maxinfo</tt></i>:</span></td><td>number of structures in info array</td></tr><tr><td><span class="term"><i><tt>cpumaps</tt></i>:</span></td><td>pointer to an bit map of real CPUs for all vcpus of this domain (in 8-bit bytes) (OUT) If cpumaps is NULL, then no cpumap information is returned by the API. It's assumed there is &lt;maxinfo&gt; cpumap in cpumaps array. The memory allocated to cpumaps must be (maxinfo * maplen) bytes (ie: calloc(maxinfo, maplen)). One cpumap inside cpumaps has the format described in virDomainPinVcpu() API.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in one cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...).</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of info filled in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetXMLDesc" id="virDomainGetXMLDesc"></a>Function: virDomainGetXMLDesc</h3><pre class="programlisting">char * virDomainGetXMLDesc (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags)<br />
</pre><p>Provide an XML description of the domain. The description may be reused later to relaunch the domain with virDomainCreateLinux().</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>an OR'ed set of <a href="libvirt-libvirt.html#virDomainXMLFlags">virDomainXMLFlags</a></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virDomainInterfaceStats" id="virDomainInterfaceStats"></a>Function: virDomainInterfaceStats</h3><pre class="programlisting">int virDomainInterfaceStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size)<br />
</pre><p>This function returns network interface stats for interfaces attached to the domain. The path parameter is the name of the network interface. Domains may have more than network interface. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the interface</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>network interface stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainLookupByID" id="virDomainLookupByID"></a>Function: virDomainLookupByID</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id)<br />
</pre><p>Try to find a domain based on the hypervisor ID number</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>id</tt></i>:</span></td><td>the domain ID number</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByName" id="virDomainLookupByName"></a>Function: virDomainLookupByName</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its name.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUID" id="virDomainLookupByUUID"></a>Function: virDomainLookupByUUID</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUIDString" id="virDomainLookupByUUIDString"></a>Function: virDomainLookupByUUIDString</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainMigrate" id="virDomainMigrate"></a>Function: virDomainMigrate</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainMigrate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth)<br />
</pre><p>Migrate the domain object from its current host to the destination host given by dconn (a connection to the destination host). Flags may be one of more of the following: <a href="libvirt-libvirt.html#VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a> Attempt a live migration. If a hypervisor supports renaming domains during migration, then you may set the dname parameter to the new name (otherwise it keeps the same name). If this is not supported by the hypervisor, dname must be NULL or else you will get an error. Since typically the two hypervisors connect directly to each other in order to perform the migration, you may need to specify a path from the source to the destination. This is the purpose of the uri parameter. If uri is NULL, then libvirt will try to find the best method. Uri may specify the hostname or IP address of the destination host as seen from the source. Or uri may be a URI giving transport, hostname, user, port, etc. in the usual form. Refer to driver documentation for the particular URIs supported. The maximum bandwidth (in Mbps) that will be used to do migration can be specified with the bandwidth parameter. If set to 0, libvirt will choose a suitable default. Some hypervisors do not support this feature and will return an error if bandwidth is not 0. To see which features are supported by the current hypervisor, see virConnectGetCapabilities, /capabilities/host/migration_features. There are many limitations on migration imposed by the underlying technology - for example it may not be possible to migrate between different processors even with the same architecture, or between different types of hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>dconn</tt></i>:</span></td><td>destination host (a connection object)</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags</td></tr><tr><td><span class="term"><i><tt>dname</tt></i>:</span></td><td>(optional) rename domain to this at destination</td></tr><tr><td><span class="term"><i><tt>uri</tt></i>:</span></td><td>(optional) dest hostname/URI as seen from the source host</td></tr><tr><td><span class="term"><i><tt>bandwidth</tt></i>:</span></td><td>(optional) specify migration bandwidth limit in Mbps</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new domain object if the migration was successful, or NULL in case of error. Note that the new domain object exists in the scope of the destination connection (dconn).</td></tr></tbody></table></div><h3><a name="virDomainPinVcpu" id="virDomainPinVcpu"></a>Function: virDomainPinVcpu</h3><pre class="programlisting">int virDomainPinVcpu (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen)<br />
</pre><p>Dynamically change the real CPUs which can be allocated to a virtual CPU. This function requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>vcpu</tt></i>:</span></td><td>virtual CPU number</td></tr><tr><td><span class="term"><i><tt>cpumap</tt></i>:</span></td><td>pointer to a bit map of real CPUs (in 8-bit bytes) (IN) Each bit set to 1 means that corresponding CPU is usable. Bytes are stored in little-endian order: CPU0-7, 8-15... In each byte, lowest CPU number is least significant bit.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...). If maplen &lt; size, missing bytes are set to zero. If maplen &gt; size, failure code is returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainReboot" id="virDomainReboot"></a>Function: virDomainReboot</h3><pre class="programlisting">int virDomainReboot (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags)<br />
</pre><p>Reboot a domain, the domain object is still usable there after but the domain OS is being stopped for a restart. Note that the guest OS may ignore the request.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags for the reboot operation, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainRestore" id="virDomainRestore"></a>Function: virDomainRestore</h3><pre class="programlisting">int virDomainRestore (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from)<br />
</pre><p>This method will restore a domain saved to disk by virDomainSave().</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>from</tt></i>:</span></td><td>path to the</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainResume" id="virDomainResume"></a>Function: virDomainResume</h3><pre class="programlisting">int virDomainResume (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Resume an suspended domain, the process is restarted from the state where it was frozen by calling virSuspendDomain(). This function may requires privileged access</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSave" id="virDomainSave"></a>Function: virDomainSave</h3><pre class="programlisting">int virDomainSave (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to)<br />
</pre><p>This method will suspend a domain and save its memory contents to a file on disk. After the call, if successful, the domain is not listed as running anymore (this may be a problem). Use virDomainRestore() to restore a domain after saving.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the output file</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetAutostart" id="virDomainSetAutostart"></a>Function: virDomainSetAutostart</h3><pre class="programlisting">int virDomainSetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart)<br />
</pre><p>Configure the domain to be automatically started when the host machine boots.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the domain should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainSetMaxMemory" id="virDomainSetMaxMemory"></a>Function: virDomainSetMaxMemory</h3><pre class="programlisting">int virDomainSetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br />
</pre><p>Dynamically change the maximum amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetMemory" id="virDomainSetMemory"></a>Function: virDomainSetMemory</h3><pre class="programlisting">int virDomainSetMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br />
</pre><p>Dynamically change the target amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function may requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetSchedulerParameters" id="virDomainSetSchedulerParameters"></a>Function: virDomainSetSchedulerParameters</h3><pre class="programlisting">int virDomainSetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams)<br />
</pre><p>Change the scheduler parameters</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter objects</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameter (this value should be same or less than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainSetVcpus" id="virDomainSetVcpus"></a>Function: virDomainSetVcpus</h3><pre class="programlisting">int virDomainSetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus)<br />
</pre><p>Dynamically change the number of virtual CPUs used by the domain. Note that this call may fail if the underlying virtualization hypervisor does not support it or if growing the number is arbitrary limited. This function requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>nvcpus</tt></i>:</span></td><td>the new number of virtual CPUs for this domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainShutdown" id="virDomainShutdown"></a>Function: virDomainShutdown</h3><pre class="programlisting">int virDomainShutdown (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Shutdown a domain, the domain object is still usable there after but the domain OS is being stopped. Note that the guest OS may ignore the request. TODO: should we add an option for reboot, knowing it may not be doable in the general case ?</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSuspend" id="virDomainSuspend"></a>Function: virDomainSuspend</h3><pre class="programlisting">int virDomainSuspend (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Suspends an active domain, the process is frozen without further access to CPU resources and I/O but the memory used by the domain at the hypervisor level will stay allocated. Use virDomainResume() to reactivate the domain. This function may requires privileged access.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainUndefine" id="virDomainUndefine"></a>Function: virDomainUndefine</h3><pre class="programlisting">int virDomainUndefine (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>undefine a domain but does not stop it if it is running</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virGetVersion" id="virGetVersion"></a>Function: virGetVersion</h3><pre class="programlisting">int virGetVersion (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer)<br />
</pre><p>Provides two information back, @libVer is the version of the library while @typeVer will be the version of the hypervisor type @type against which the library was compiled. If @type is NULL, "Xen" is assumed, if @type is unknown or not available, an error code will be returned and @typeVer will be 0.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>libVer</tt></i>:</span></td><td>return value for the library version (OUT)</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the type of connection/driver looked at</td></tr><tr><td><span class="term"><i><tt>typeVer</tt></i>:</span></td><td>return value for the version of the hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of failure, 0 otherwise, and values for @libVer and @typeVer have the format major * 1,000,000 + minor * 1,000 + release.</td></tr></tbody></table></div><h3><a name="virInitialize" id="virInitialize"></a>Function: virInitialize</h3><pre class="programlisting">int virInitialize (void)<br />
</pre><p>Initialize the library. It's better to call this routine at startup in multithreaded applications to avoid potential race when initializing the library.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreate" id="virNetworkCreate"></a>Function: virNetworkCreate</h3><pre class="programlisting">int virNetworkCreate (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Create and start a defined network. If the call succeed the network moves from the defined to the running networks pools.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreateXML" id="virNetworkCreateXML"></a>Function: virNetworkCreateXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc)<br />
</pre><p>Create and start a new virtual network, based on an XML description similar to the one returned by virNetworkGetXMLDesc()</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>an XML description of the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virNetworkDefineXML" id="virNetworkDefineXML"></a>Function: virNetworkDefineXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br />
</pre><p>Define a network, but does not create it</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the network, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the network otherwise</td></tr></tbody></table></div><h3><a name="virNetworkDestroy" id="virNetworkDestroy"></a>Function: virNetworkDestroy</h3><pre class="programlisting">int virNetworkDestroy (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Destroy the network object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. The data structure is freed and should not be used thereafter if the call does not return an error. This function may requires privileged access</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkFree" id="virNetworkFree"></a>Function: virNetworkFree</h3><pre class="programlisting">int virNetworkFree (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Free the network object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetAutostart" id="virNetworkGetAutostart"></a>Function: virNetworkGetAutostart</h3><pre class="programlisting">int virNetworkGetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart)<br />
</pre><p>Provides a boolean value indicating whether the network configured to be automatically started when the host machine boots.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetBridgeName" id="virNetworkGetBridgeName"></a>Function: virNetworkGetBridgeName</h3><pre class="programlisting">char * virNetworkGetBridgeName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Provides a bridge interface name to which a domain may connect a network interface in order to join the network.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated interface name, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkGetConnect" id="virNetworkGetConnect"></a>Function: virNetworkGetConnect</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virNetworkGetConnect (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net)<br />
</pre><p>Provides the connection pointer associated with a network. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the network object together.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>net</tt></i>:</span></td><td>pointer to a network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetName" id="virNetworkGetName"></a>Function: virNetworkGetName</h3><pre class="programlisting">const char * virNetworkGetName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Get the public name for that network</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the network object.</td></tr></tbody></table></div><h3><a name="virNetworkGetUUID" id="virNetworkGetUUID"></a>Function: virNetworkGetUUID</h3><pre class="programlisting">int virNetworkGetUUID (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid)<br />
</pre><p>Get the UUID for a network</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetUUIDString" id="virNetworkGetUUIDString"></a>Function: virNetworkGetUUIDString</h3><pre class="programlisting">int virNetworkGetUUIDString (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf)<br />
</pre><p>Get the UUID for a network as string. For more information about UUID see RFC4122.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetXMLDesc" id="virNetworkGetXMLDesc"></a>Function: virNetworkGetXMLDesc</h3><pre class="programlisting">char * virNetworkGetXMLDesc (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags)<br />
</pre><p>Provide an XML description of the network. The description may be reused later to relaunch the network with virNetworkCreateXML().</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>and OR'ed set of extraction flags, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByName" id="virNetworkLookupByName"></a>Function: virNetworkLookupByName</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its name.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUID" id="virNetworkLookupByUUID"></a>Function: virNetworkLookupByUUID</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUIDString" id="virNetworkLookupByUUIDString"></a>Function: virNetworkLookupByUUIDString</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkSetAutostart" id="virNetworkSetAutostart"></a>Function: virNetworkSetAutostart</h3><pre class="programlisting">int virNetworkSetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart)<br />
</pre><p>Configure the network to be automatically started when the host machine boots.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the network should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkUndefine" id="virNetworkUndefine"></a>Function: virNetworkUndefine</h3><pre class="programlisting">int virNetworkUndefine (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Undefine a network but does not stop it if it is running</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNodeGetCellsFreeMemory" id="virNodeGetCellsFreeMemory"></a>Function: virNodeGetCellsFreeMemory</h3><pre class="programlisting">int virNodeGetCellsFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells)<br />
</pre><p>This call returns the amount of free memory in one or more NUMA cells. The @freeMems array must be allocated by the caller and will be filled with the amount of free memory in kilobytes for each cell requested, starting with startCell (in freeMems[0]), up to either (startCell + maxCells), or the number of additional cells in the node, whichever is smaller.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>freeMems</tt></i>:</span></td><td>pointer to the array of unsigned long long</td></tr><tr><td><span class="term"><i><tt>startCell</tt></i>:</span></td><td>index of first cell to return freeMems info on.</td></tr><tr><td><span class="term"><i><tt>maxCells</tt></i>:</span></td><td>Maximum number of cells for which freeMems information can be returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of entries filled in freeMems, or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virNodeGetFreeMemory" id="virNodeGetFreeMemory"></a>Function: virNodeGetFreeMemory</h3><pre class="programlisting">unsigned long long virNodeGetFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>provides the free memory available on the Node</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the available free memory in kilobytes or 0 in case of error</td></tr></tbody></table></div><h3><a name="virNodeGetInfo" id="virNodeGetInfo"></a>Function: virNodeGetInfo</h3><pre class="programlisting">int virNodeGetInfo (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info)<br />
</pre><p>Extract hardware information about the node.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolBuild" id="virStoragePoolBuild"></a>Function: virStoragePoolBuild</h3><pre class="programlisting">int virStoragePoolBuild (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Build the underlying storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 upon failure</td></tr></tbody></table></div><h3><a name="virStoragePoolCreate" id="virStoragePoolCreate"></a>Function: virStoragePoolCreate</h3><pre class="programlisting">int virStoragePoolCreate (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Starts an inactive storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be started</td></tr></tbody></table></div><h3><a name="virStoragePoolCreateXML" id="virStoragePoolCreateXML"></a>Function: virStoragePoolCreateXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br />
</pre><p>Create a new storage based on its XML description. The pool is not persistent, so its definition will disappear when it is destroyed, or if the host is restarted</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDefineXML" id="virStoragePoolDefineXML"></a>Function: virStoragePoolDefineXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags)<br />
</pre><p>Define a new inactive storage pool based on its XML description. The pool is persistent, until explicitly undefined.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDelete" id="virStoragePoolDelete"></a>Function: virStoragePoolDelete</h3><pre class="programlisting">int virStoragePoolDelete (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Delete the underlying pool resources. This is a non-recoverable operation. The <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object itself is not free'd.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for obliteration process</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be obliterate</td></tr></tbody></table></div><h3><a name="virStoragePoolDestroy" id="virStoragePoolDestroy"></a>Function: virStoragePoolDestroy</h3><pre class="programlisting">int virStoragePoolDestroy (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Destroy an active storage pool. This will deactivate the pool on the host, but keep any persistent config associated with it. If it has a persistent config it can later be restarted with virStoragePoolCreate(). This does not free the associated <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be destroyed</td></tr></tbody></table></div><h3><a name="virStoragePoolFree" id="virStoragePoolFree"></a>Function: virStoragePoolFree</h3><pre class="programlisting">int virStoragePoolFree (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Free a storage pool object, releasing all memory associated with it. Does not change the state of the pool on the host.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be free'd.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetAutostart" id="virStoragePoolGetAutostart"></a>Function: virStoragePoolGetAutostart</h3><pre class="programlisting">int virStoragePoolGetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart)<br />
</pre><p>Fetches the value of the autostart flag, which determines whether the pool is automatically started at boot time</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>location in which to store autostart flag</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolGetConnect" id="virStoragePoolGetConnect"></a>Function: virStoragePoolGetConnect</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStoragePoolGetConnect (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Provides the connection pointer associated with a storage pool. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the pool object together.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetInfo" id="virStoragePoolGetInfo"></a>Function: virStoragePoolGetInfo</h3><pre class="programlisting">int virStoragePoolGetInfo (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info)<br />
</pre><p>Get volatile information about the storage pool such as free space / usage summary</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetName" id="virStoragePoolGetName"></a>Function: virStoragePoolGetName</h3><pre class="programlisting">const char * virStoragePoolGetName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Fetch the locally unique name of the storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the name of the pool, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUID" id="virStoragePoolGetUUID"></a>Function: virStoragePoolGetUUID</h3><pre class="programlisting">int virStoragePoolGetUUID (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid)<br />
</pre><p>Fetch the globally unique ID of the storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUIDString" id="virStoragePoolGetUUIDString"></a>Function: virStoragePoolGetUUIDString</h3><pre class="programlisting">int virStoragePoolGetUUIDString (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf)<br />
</pre><p>Fetch the globally unique ID of the storage pool as a string</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetXMLDesc" id="virStoragePoolGetXMLDesc"></a>Function: virStoragePoolGetXMLDesc</h3><pre class="programlisting">char * virStoragePoolGetXMLDesc (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Fetch an XML document describing all aspects of the storage pool. This is suitable for later feeding back into the <a href="libvirt-libvirt.html#virStoragePoolCreateXML">virStoragePoolCreateXML</a> method.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML format options (set of virDomainXMLFlags)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolListVolumes" id="virStoragePoolListVolumes"></a>Function: virStoragePoolListVolumes</h3><pre class="programlisting">int virStoragePoolListVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Fetch list of storage volume names, limiting to at most maxnames.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array in which to storage volume names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names fetched, or -1 on error</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByName" id="virStoragePoolLookupByName"></a>Function: virStoragePoolLookupByName</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Fetch a storage pool based on its unique name</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUID" id="virStoragePoolLookupByUUID"></a>Function: virStoragePoolLookupByUUID</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Fetch a storage pool based on its globally unique id</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUIDString" id="virStoragePoolLookupByUUIDString"></a>Function: virStoragePoolLookupByUUIDString</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Fetch a storage pool based on its globally unique id</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByVolume" id="virStoragePoolLookupByVolume"></a>Function: virStoragePoolLookupByVolume</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByVolume (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch a storage pool which contains a particular volume</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolNumOfVolumes" id="virStoragePoolNumOfVolumes"></a>Function: virStoragePoolNumOfVolumes</h3><pre class="programlisting">int virStoragePoolNumOfVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Fetch the number of storage volumes within a pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of storage pools, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolRefresh" id="virStoragePoolRefresh"></a>Function: virStoragePoolRefresh</h3><pre class="programlisting">int virStoragePoolRefresh (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Request that the pool refresh its list of volumes. This may involve communicating with a remote server, and/or initializing new devices at the OS layer</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags to control refresh behaviour (currently unused, use 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the volume list was refreshed, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolSetAutostart" id="virStoragePoolSetAutostart"></a>Function: virStoragePoolSetAutostart</h3><pre class="programlisting">int virStoragePoolSetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart)<br />
</pre><p>Sets the autostart flag</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>new flag setting</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolUndefine" id="virStoragePoolUndefine"></a>Function: virStoragePoolUndefine</h3><pre class="programlisting">int virStoragePoolUndefine (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Undefine an inactive storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStorageVolCreateXML" id="virStorageVolCreateXML"></a>Function: virStorageVolCreateXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolCreateXML (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags)<br />
</pre><p>Create a storage volume within a pool based on an XML description. Not all pools support creation of volumes</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>xmldesc</tt></i>:</span></td><td>description of volume to create</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for creation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolDelete" id="virStorageVolDelete"></a>Function: virStorageVolDelete</h3><pre class="programlisting">int virStorageVolDelete (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br />
</pre><p>Delete the storage volume from the pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolFree" id="virStorageVolFree"></a>Function: virStorageVolFree</h3><pre class="programlisting">int virStorageVolFree (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Release the storage volume handle. The underlying storage volume contains to exist</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetConnect" id="virStorageVolGetConnect"></a>Function: virStorageVolGetConnect</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStorageVolGetConnect (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Provides the connection pointer associated with a storage volume. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the volume object together.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStorageVolGetInfo" id="virStorageVolGetInfo"></a>Function: virStorageVolGetInfo</h3><pre class="programlisting">int virStorageVolGetInfo (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info)<br />
</pre><p>Fetches volatile information about the storage volume such as its current allocation</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStorageVolGetKey" id="virStorageVolGetKey"></a>Function: virStorageVolGetKey</h3><pre class="programlisting">const char * virStorageVolGetKey (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume key. This is globally unique, so the same volume will have the same key no matter what host it is accessed from</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume key, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetName" id="virStorageVolGetName"></a>Function: virStorageVolGetName</h3><pre class="programlisting">const char * virStorageVolGetName (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume name. This is unique within the scope of a pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume name, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetPath" id="virStorageVolGetPath"></a>Function: virStorageVolGetPath</h3><pre class="programlisting">char * virStorageVolGetPath (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume path. Depending on the pool configuration this is either persistent across hosts, or dynamically assigned at pool startup. Consult pool documentation for information on getting the persistent naming</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume path, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetXMLDesc" id="virStorageVolGetXMLDesc"></a>Function: virStorageVolGetXMLDesc</h3><pre class="programlisting">char * virStorageVolGetXMLDesc (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br />
</pre><p>Fetch an XML document describing all aspects of the storage volume</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML generation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByKey" id="virStorageVolLookupByKey"></a>Function: virStorageVolLookupByKey</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByKey (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key)<br />
</pre><p>Fetch a pointer to a storage volume based on its globally unique key</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>key</tt></i>:</span></td><td>globally unique key</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByName" id="virStorageVolLookupByName"></a>Function: virStorageVolLookupByName</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)<br />
</pre><p>Fetch a pointer to a storage volume based on its name within a pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByPath" id="virStorageVolLookupByPath"></a>Function: virStorageVolLookupByPath</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByPath (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)<br />
</pre><p>Fetch a pointer to a storage volume based on its locally (host) unique path</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>locally unique path</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="../index.html">Home</a></li><li><a href="../html/index.html">API Menu</a></li><li><a href="../examples/index.html">C code examples</a></li><li><a href="../ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="../Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
</pre></div><h3><a name="virStorageVolDeleteFlags" id="virStorageVolDeleteFlags"><code>virStorageVolDeleteFlags</code></a></h3><div class="api"><pre>enum virStorageVolDeleteFlags {
</pre><table><tr><td><a name="VIR_STORAGE_VOL_DELETE_NORMAL" id="VIR_STORAGE_VOL_DELETE_NORMAL">VIR_STORAGE_VOL_DELETE_NORMAL</a></td><td> = </td><td>0</td><td> : Delete metadata only (fast)</td></tr><tr><td><a name="VIR_STORAGE_VOL_DELETE_ZEROED" id="VIR_STORAGE_VOL_DELETE_ZEROED">VIR_STORAGE_VOL_DELETE_ZEROED</a></td><td> = </td><td>1</td><td> : Clear all data to zeros (slow)</td></tr></table><pre>}
</pre></div><h3><a name="virStorageVolInfo" id="virStorageVolInfo"><code>virStorageVolInfo</code></a></h3><div class="api"><pre>struct virStorageVolInfo{
</pre><table><tr><td>int</td><td>type</td><td> : <a href="libvirt-libvirt.html#virStorageVolType">virStorageVolType</a> flags</td></tr><tr><td>unsigned long long</td><td>capacity</td><td> : Logical size bytes</td></tr><tr><td>unsigned long long</td><td>allocation</td><td> : Current allocation bytes</td></tr></table><pre>
}
</pre></div><h3><a name="virStorageVolType" id="virStorageVolType"><code>virStorageVolType</code></a></h3><div class="api"><pre>enum virStorageVolType {
</pre><table><tr><td><a name="VIR_STORAGE_VOL_FILE" id="VIR_STORAGE_VOL_FILE">VIR_STORAGE_VOL_FILE</a></td><td> = </td><td>0</td><td> : Regular file based volumes</td></tr><tr><td><a name="VIR_STORAGE_VOL_BLOCK" id="VIR_STORAGE_VOL_BLOCK">VIR_STORAGE_VOL_BLOCK</a></td><td> = </td><td>1</td><td> : Block based volumes</td></tr></table><pre>}
</pre></div><h3><a name="virVcpuInfo" id="virVcpuInfo"><code>virVcpuInfo</code></a></h3><div class="api"><pre>struct virVcpuInfo{
</pre><table><tr><td>unsigned int</td><td>number</td><td> : virtual CPU number</td></tr><tr><td>int</td><td>state</td><td> : value from <a href="libvirt-libvirt.html#virVcpuState">virVcpuState</a></td></tr><tr><td>unsigned long long</td><td>cpuTime</td><td> : CPU time used, in nanoseconds</td></tr><tr><td>int</td><td>cpu</td><td> : real CPU number, or -1 if offline</td></tr></table><pre>
}
</pre></div><h3><a name="virVcpuState" id="virVcpuState"><code>virVcpuState</code></a></h3><div class="api"><pre>enum virVcpuState {
</pre><table><tr><td><a name="VIR_VCPU_OFFLINE" id="VIR_VCPU_OFFLINE">VIR_VCPU_OFFLINE</a></td><td> = </td><td>0</td><td> : the virtual CPU is offline</td></tr><tr><td><a name="VIR_VCPU_RUNNING" id="VIR_VCPU_RUNNING">VIR_VCPU_RUNNING</a></td><td> = </td><td>1</td><td> : the virtual CPU is running</td></tr><tr><td><a name="VIR_VCPU_BLOCKED" id="VIR_VCPU_BLOCKED">VIR_VCPU_BLOCKED</a></td><td> = </td><td>2</td><td> : the virtual CPU is blocked on resource</td></tr></table><pre>}
</pre></div><h3><a name="functions" id="functions">Functions</a></h3><h3><a name="virConnectAuthCallbackPtr" id="virConnectAuthCallbackPtr"><code>virConnectAuthCallbackPtr</code></a></h3><pre class="programlisting">typedef int (*virConnectAuthCallbackPtr) (<a href="libvirt-libvirt.html#virConnectCredentialPtr">virConnectCredentialPtr</a> cred, <br /> unsigned int ncred, <br /> void * cbdata)
</pre><p></p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>cred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>ncred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>cbdata</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><br /><h3><a name="virConnectClose" id="virConnectClose"><code>virConnectClose</code></a></h3><pre class="programlisting">int virConnectClose (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This function closes the connection to the Hypervisor. This should not be called if further interaction with the Hypervisor are needed especially if there is running domain which need further monitoring by the application.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectGetCapabilities" id="virConnectGetCapabilities"><code>virConnectGetCapabilities</code></a></h3><pre class="programlisting">char * virConnectGetCapabilities (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides capabilities of the hypervisor / driver.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, or an XML string defining the capabilities. The client must free the returned string after use.</td></tr></tbody></table></div><h3><a name="virConnectGetHostname" id="virConnectGetHostname"><code>virConnectGetHostname</code></a></h3><pre class="programlisting">char * virConnectGetHostname (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This returns the system hostname on which the hypervisor is running (the result of the gethostname(2) system call). If we are connected to a remote system, then this returns the hostname of the remote system.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the hostname which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetMaxVcpus" id="virConnectGetMaxVcpus"><code>virConnectGetMaxVcpus</code></a></h3><pre class="programlisting">int virConnectGetMaxVcpus (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)<br />
</pre><p>Provides the maximum number of virtual CPUs supported for a guest VM of a specific type. The 'type' parameter here corresponds to the 'type' attribute in the &lt;domain&gt; element of the XML.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>value of the 'type' attribute in the &lt;domain&gt; element</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectGetType" id="virConnectGetType"><code>virConnectGetType</code></a></h3><pre class="programlisting">const char * virConnectGetType (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Get the name of the Hypervisor software used.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a static zero terminated string otherwise. See also: http://www.redhat.com/archives/libvir-list/2007-February/msg00096.html</td></tr></tbody></table></div><h3><a name="virConnectGetURI" id="virConnectGetURI"><code>virConnectGetURI</code></a></h3><pre class="programlisting">char * virConnectGetURI (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This returns the URI (name) of the hypervisor connection. Normally this is the same as or similar to the string passed to the virConnectOpen/virConnectOpenReadOnly call, but the driver may make the URI canonical. If name == NULL was passed to virConnectOpen, then the driver will return a non-NULL URI which can be used to connect to the same hypervisor later.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the URI string which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetVersion" id="virConnectGetVersion"><code>virConnectGetVersion</code></a></h3><pre class="programlisting">int virConnectGetVersion (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer)<br />
</pre><p>Get the version level of the Hypervisor running. This may work only with hypervisor call, i.e. with privileged access to the hypervisor, not with a Read-Only connection.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>hvVer</tt></i>:</span></td><td>return value for the version of the running hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 otherwise. if the version can't be extracted by lack of capacities returns 0 and @hvVer is 0, otherwise @hvVer value is major * 1,000,000 + minor * 1,000 + release</td></tr></tbody></table></div><h3><a name="virConnectListDefinedDomains" id="virConnectListDefinedDomains"><code>virConnectListDefinedDomains</code></a></h3><pre class="programlisting">int virConnectListDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>list the defined but inactive domains, stores the pointers to the names in @names</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedNetworks" id="virConnectListDefinedNetworks"><code>virConnectListDefinedNetworks</code></a></h3><pre class="programlisting">int virConnectListDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>list the inactive networks, stores the pointers to the names in @names</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedStoragePools" id="virConnectListDefinedStoragePools"><code>virConnectListDefinedStoragePools</code></a></h3><pre class="programlisting">int virConnectListDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Provides the list of names of inactive storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectListDomains" id="virConnectListDomains"><code>virConnectListDomains</code></a></h3><pre class="programlisting">int virConnectListDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids)<br />
</pre><p>Collect the list of active domains, and store their ID in @maxids</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>ids</tt></i>:</span></td><td>array to collect the list of IDs of active domains</td></tr><tr><td><span class="term"><i><tt>maxids</tt></i>:</span></td><td>size of @ids</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListNetworks" id="virConnectListNetworks"><code>virConnectListNetworks</code></a></h3><pre class="programlisting">int virConnectListNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Collect the list of active networks, and store their names in @names</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array to collect the list of names of active networks</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of @names</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListStoragePools" id="virConnectListStoragePools"><code>virConnectListStoragePools</code></a></h3><pre class="programlisting">int virConnectListStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Provides the list of names of active storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedDomains" id="virConnectNumOfDefinedDomains"><code>virConnectNumOfDefinedDomains</code></a></h3><pre class="programlisting">int virConnectNumOfDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of defined but inactive domains.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedNetworks" id="virConnectNumOfDefinedNetworks"><code>virConnectNumOfDefinedNetworks</code></a></h3><pre class="programlisting">int virConnectNumOfDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of inactive networks.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedStoragePools" id="virConnectNumOfDefinedStoragePools"><code>virConnectNumOfDefinedStoragePools</code></a></h3><pre class="programlisting">int virConnectNumOfDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of inactive storage pools</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDomains" id="virConnectNumOfDomains"><code>virConnectNumOfDomains</code></a></h3><pre class="programlisting">int virConnectNumOfDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active domains.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfNetworks" id="virConnectNumOfNetworks"><code>virConnectNumOfNetworks</code></a></h3><pre class="programlisting">int virConnectNumOfNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active networks.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of network found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfStoragePools" id="virConnectNumOfStoragePools"><code>virConnectNumOfStoragePools</code></a></h3><pre class="programlisting">int virConnectNumOfStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active storage pools</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectOpen" id="virConnectOpen"><code>virConnectOpen</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpen (const char * name)<br />
</pre><p>This function should be called first to get a connection to the Hypervisor and xen store</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenAuth" id="virConnectOpenAuth"><code>virConnectOpenAuth</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenAuth (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags)<br />
</pre><p>This function should be called first to get a connection to the Hypervisor. If necessary, authentication will be performed fetching credentials via the callback</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>auth</tt></i>:</span></td><td>Authenticate callback parameters</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>Open flags</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenReadOnly" id="virConnectOpenReadOnly"><code>virConnectOpenReadOnly</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenReadOnly (const char * name)<br />
</pre><p>This function should be called first to get a restricted connection to the library functionalities. The set of APIs usable are then restricted on the available methods to control the domains.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virDomainAttachDevice" id="virDomainAttachDevice"><code>virDomainAttachDevice</code></a></h3><pre class="programlisting">int virDomainAttachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br />
</pre><p>Create a virtual device attachment to backend.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainBlockStats" id="virDomainBlockStats"><code>virDomainBlockStats</code></a></h3><pre class="programlisting">int virDomainBlockStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size)<br />
</pre><p>This function returns block device (disk) stats for block devices attached to the domain. The path parameter is the name of the block device. Get this by calling <a href="libvirt-libvirt.html#virDomainGetXMLDesc">virDomainGetXMLDesc</a> and finding the &lt;target dev='...'&gt; attribute within //domain/devices/disk. (For example, "xvda"). Domains may have more than one block device. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the block device</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>block device stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCoreDump" id="virDomainCoreDump"><code>virDomainCoreDump</code></a></h3><pre class="programlisting">int virDomainCoreDump (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags)<br />
</pre><p>This method will dump the core of a domain on a given file for analysis. Note that for remote Xen Daemon the file path will be interpreted in the remote host.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the core file</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags, currently unused</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCreate" id="virDomainCreate"><code>virDomainCreate</code></a></h3><pre class="programlisting">int virDomainCreate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>launch a defined domain. If the call succeed the domain moves from the defined to the running domains pools.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainCreateLinux" id="virDomainCreateLinux"><code>virDomainCreateLinux</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainCreateLinux (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br />
</pre><p>Launch a new Linux guest domain, based on an XML description similar to the one returned by virDomainGetXMLDesc() This function may requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>string containing an XML description of the domain</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>an optional set of virDomainFlags</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virDomainDefineXML" id="virDomainDefineXML"><code>virDomainDefineXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br />
</pre><p>define a domain, but does not start it</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the domain, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the domain otherwise</td></tr></tbody></table></div><h3><a name="virDomainDestroy" id="virDomainDestroy"><code>virDomainDestroy</code></a></h3><pre class="programlisting">int virDomainDestroy (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Destroy the domain object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. The data structure is freed and should not be used thereafter if the call does not return an error. This function may requires privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainDetachDevice" id="virDomainDetachDevice"><code>virDomainDetachDevice</code></a></h3><pre class="programlisting">int virDomainDetachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br />
</pre><p>Destroy a virtual device attachment to backend.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainFree" id="virDomainFree"><code>virDomainFree</code></a></h3><pre class="programlisting">int virDomainFree (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Free the domain object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetAutostart" id="virDomainGetAutostart"><code>virDomainGetAutostart</code></a></h3><pre class="programlisting">int virDomainGetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart)<br />
</pre><p>Provides a boolean value indicating whether the domain configured to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetConnect" id="virDomainGetConnect"><code>virDomainGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virDomainGetConnect (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom)<br />
</pre><p>Provides the connection pointer associated with a domain. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the domain object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to a domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetID" id="virDomainGetID"><code>virDomainGetID</code></a></h3><pre class="programlisting">unsigned int virDomainGetID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the hypervisor ID number for the domain</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the domain ID number or (unsigned int) -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainGetInfo" id="virDomainGetInfo"><code>virDomainGetInfo</code></a></h3><pre class="programlisting">int virDomainGetInfo (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info)<br />
</pre><p>Extract information about a domain. Note that if the connection used to get the domain is limited only a partial set of the information can be extracted.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxMemory" id="virDomainGetMaxMemory"><code>virDomainGetMaxMemory</code></a></h3><pre class="programlisting">unsigned long virDomainGetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Retrieve the maximum amount of physical memory allocated to a domain. If domain is NULL, then this get the amount of memory reserved to Domain0 i.e. the domain where the application runs.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the memory size in kilobytes or 0 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxVcpus" id="virDomainGetMaxVcpus"><code>virDomainGetMaxVcpus</code></a></h3><pre class="programlisting">int virDomainGetMaxVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Provides the maximum number of virtual CPUs supported for the guest VM. If the guest is inactive, this is basically the same as virConnectGetMaxVcpus. If the guest is running this will reflect the maximum number of virtual CPUs the guest was booted with.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetName" id="virDomainGetName"><code>virDomainGetName</code></a></h3><pre class="programlisting">const char * virDomainGetName (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the public name for that domain</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the domain object.</td></tr></tbody></table></div><h3><a name="virDomainGetOSType" id="virDomainGetOSType"><code>virDomainGetOSType</code></a></h3><pre class="programlisting">char * virDomainGetOSType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the type of domain operation system.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new string or NULL in case of error, the string must be freed by the caller.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerParameters" id="virDomainGetSchedulerParameters"><code>virDomainGetSchedulerParameters</code></a></h3><pre class="programlisting">int virDomainGetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams)<br />
</pre><p>Get the scheduler parameters, the @params array will be filled with the values.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter object (return value)</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>pointer to number of scheduler parameter (this value should be same than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerType" id="virDomainGetSchedulerType"><code>virDomainGetSchedulerType</code></a></h3><pre class="programlisting">char * virDomainGetSchedulerType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams)<br />
</pre><p>Get the scheduler type.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameters(return value)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error. The caller must free the returned string.</td></tr></tbody></table></div><h3><a name="virDomainGetUUID" id="virDomainGetUUID"><code>virDomainGetUUID</code></a></h3><pre class="programlisting">int virDomainGetUUID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid)<br />
</pre><p>Get the UUID for a domain</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetUUIDString" id="virDomainGetUUIDString"><code>virDomainGetUUIDString</code></a></h3><pre class="programlisting">int virDomainGetUUIDString (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf)<br />
</pre><p>Get the UUID for a domain as string. For more information about UUID see RFC4122.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetVcpus" id="virDomainGetVcpus"><code>virDomainGetVcpus</code></a></h3><pre class="programlisting">int virDomainGetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen)<br />
</pre><p>Extract information about virtual CPUs of domain, store it in info array and also in cpumaps if this pointer isn't NULL.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to an array of <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> structures (OUT)</td></tr><tr><td><span class="term"><i><tt>maxinfo</tt></i>:</span></td><td>number of structures in info array</td></tr><tr><td><span class="term"><i><tt>cpumaps</tt></i>:</span></td><td>pointer to an bit map of real CPUs for all vcpus of this domain (in 8-bit bytes) (OUT) If cpumaps is NULL, then no cpumap information is returned by the API. It's assumed there is &lt;maxinfo&gt; cpumap in cpumaps array. The memory allocated to cpumaps must be (maxinfo * maplen) bytes (ie: calloc(maxinfo, maplen)). One cpumap inside cpumaps has the format described in virDomainPinVcpu() API.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in one cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...).</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of info filled in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetXMLDesc" id="virDomainGetXMLDesc"><code>virDomainGetXMLDesc</code></a></h3><pre class="programlisting">char * virDomainGetXMLDesc (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags)<br />
</pre><p>Provide an XML description of the domain. The description may be reused later to relaunch the domain with virDomainCreateLinux().</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>an OR'ed set of <a href="libvirt-libvirt.html#virDomainXMLFlags">virDomainXMLFlags</a></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virDomainInterfaceStats" id="virDomainInterfaceStats"><code>virDomainInterfaceStats</code></a></h3><pre class="programlisting">int virDomainInterfaceStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size)<br />
</pre><p>This function returns network interface stats for interfaces attached to the domain. The path parameter is the name of the network interface. Domains may have more than network interface. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the interface</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>network interface stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainLookupByID" id="virDomainLookupByID"><code>virDomainLookupByID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id)<br />
</pre><p>Try to find a domain based on the hypervisor ID number</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>id</tt></i>:</span></td><td>the domain ID number</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByName" id="virDomainLookupByName"><code>virDomainLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its name.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUID" id="virDomainLookupByUUID"><code>virDomainLookupByUUID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUIDString" id="virDomainLookupByUUIDString"><code>virDomainLookupByUUIDString</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainMigrate" id="virDomainMigrate"><code>virDomainMigrate</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainMigrate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth)<br />
</pre><p>Migrate the domain object from its current host to the destination host given by dconn (a connection to the destination host). Flags may be one of more of the following: <a href="libvirt-libvirt.html#VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a> Attempt a live migration. If a hypervisor supports renaming domains during migration, then you may set the dname parameter to the new name (otherwise it keeps the same name). If this is not supported by the hypervisor, dname must be NULL or else you will get an error. Since typically the two hypervisors connect directly to each other in order to perform the migration, you may need to specify a path from the source to the destination. This is the purpose of the uri parameter. If uri is NULL, then libvirt will try to find the best method. Uri may specify the hostname or IP address of the destination host as seen from the source. Or uri may be a URI giving transport, hostname, user, port, etc. in the usual form. Refer to driver documentation for the particular URIs supported. The maximum bandwidth (in Mbps) that will be used to do migration can be specified with the bandwidth parameter. If set to 0, libvirt will choose a suitable default. Some hypervisors do not support this feature and will return an error if bandwidth is not 0. To see which features are supported by the current hypervisor, see virConnectGetCapabilities, /capabilities/host/migration_features. There are many limitations on migration imposed by the underlying technology - for example it may not be possible to migrate between different processors even with the same architecture, or between different types of hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>dconn</tt></i>:</span></td><td>destination host (a connection object)</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags</td></tr><tr><td><span class="term"><i><tt>dname</tt></i>:</span></td><td>(optional) rename domain to this at destination</td></tr><tr><td><span class="term"><i><tt>uri</tt></i>:</span></td><td>(optional) dest hostname/URI as seen from the source host</td></tr><tr><td><span class="term"><i><tt>bandwidth</tt></i>:</span></td><td>(optional) specify migration bandwidth limit in Mbps</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new domain object if the migration was successful, or NULL in case of error. Note that the new domain object exists in the scope of the destination connection (dconn).</td></tr></tbody></table></div><h3><a name="virDomainPinVcpu" id="virDomainPinVcpu"><code>virDomainPinVcpu</code></a></h3><pre class="programlisting">int virDomainPinVcpu (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen)<br />
</pre><p>Dynamically change the real CPUs which can be allocated to a virtual CPU. This function requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>vcpu</tt></i>:</span></td><td>virtual CPU number</td></tr><tr><td><span class="term"><i><tt>cpumap</tt></i>:</span></td><td>pointer to a bit map of real CPUs (in 8-bit bytes) (IN) Each bit set to 1 means that corresponding CPU is usable. Bytes are stored in little-endian order: CPU0-7, 8-15... In each byte, lowest CPU number is least significant bit.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...). If maplen &lt; size, missing bytes are set to zero. If maplen &gt; size, failure code is returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainReboot" id="virDomainReboot"><code>virDomainReboot</code></a></h3><pre class="programlisting">int virDomainReboot (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags)<br />
</pre><p>Reboot a domain, the domain object is still usable there after but the domain OS is being stopped for a restart. Note that the guest OS may ignore the request.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags for the reboot operation, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainRestore" id="virDomainRestore"><code>virDomainRestore</code></a></h3><pre class="programlisting">int virDomainRestore (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from)<br />
</pre><p>This method will restore a domain saved to disk by virDomainSave().</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>from</tt></i>:</span></td><td>path to the</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainResume" id="virDomainResume"><code>virDomainResume</code></a></h3><pre class="programlisting">int virDomainResume (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Resume an suspended domain, the process is restarted from the state where it was frozen by calling virSuspendDomain(). This function may requires privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSave" id="virDomainSave"><code>virDomainSave</code></a></h3><pre class="programlisting">int virDomainSave (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to)<br />
</pre><p>This method will suspend a domain and save its memory contents to a file on disk. After the call, if successful, the domain is not listed as running anymore (this may be a problem). Use virDomainRestore() to restore a domain after saving.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the output file</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetAutostart" id="virDomainSetAutostart"><code>virDomainSetAutostart</code></a></h3><pre class="programlisting">int virDomainSetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart)<br />
</pre><p>Configure the domain to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the domain should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainSetMaxMemory" id="virDomainSetMaxMemory"><code>virDomainSetMaxMemory</code></a></h3><pre class="programlisting">int virDomainSetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br />
</pre><p>Dynamically change the maximum amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetMemory" id="virDomainSetMemory"><code>virDomainSetMemory</code></a></h3><pre class="programlisting">int virDomainSetMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br />
</pre><p>Dynamically change the target amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function may requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetSchedulerParameters" id="virDomainSetSchedulerParameters"><code>virDomainSetSchedulerParameters</code></a></h3><pre class="programlisting">int virDomainSetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams)<br />
</pre><p>Change the scheduler parameters</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter objects</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameter (this value should be same or less than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainSetVcpus" id="virDomainSetVcpus"><code>virDomainSetVcpus</code></a></h3><pre class="programlisting">int virDomainSetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus)<br />
</pre><p>Dynamically change the number of virtual CPUs used by the domain. Note that this call may fail if the underlying virtualization hypervisor does not support it or if growing the number is arbitrary limited. This function requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>nvcpus</tt></i>:</span></td><td>the new number of virtual CPUs for this domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainShutdown" id="virDomainShutdown"><code>virDomainShutdown</code></a></h3><pre class="programlisting">int virDomainShutdown (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Shutdown a domain, the domain object is still usable there after but the domain OS is being stopped. Note that the guest OS may ignore the request. TODO: should we add an option for reboot, knowing it may not be doable in the general case ?</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSuspend" id="virDomainSuspend"><code>virDomainSuspend</code></a></h3><pre class="programlisting">int virDomainSuspend (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Suspends an active domain, the process is frozen without further access to CPU resources and I/O but the memory used by the domain at the hypervisor level will stay allocated. Use virDomainResume() to reactivate the domain. This function may requires privileged access.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainUndefine" id="virDomainUndefine"><code>virDomainUndefine</code></a></h3><pre class="programlisting">int virDomainUndefine (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>undefine a domain but does not stop it if it is running</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virGetVersion" id="virGetVersion"><code>virGetVersion</code></a></h3><pre class="programlisting">int virGetVersion (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer)<br />
</pre><p>Provides two information back, @libVer is the version of the library while @typeVer will be the version of the hypervisor type @type against which the library was compiled. If @type is NULL, "Xen" is assumed, if @type is unknown or not available, an error code will be returned and @typeVer will be 0.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>libVer</tt></i>:</span></td><td>return value for the library version (OUT)</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the type of connection/driver looked at</td></tr><tr><td><span class="term"><i><tt>typeVer</tt></i>:</span></td><td>return value for the version of the hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of failure, 0 otherwise, and values for @libVer and @typeVer have the format major * 1,000,000 + minor * 1,000 + release.</td></tr></tbody></table></div><h3><a name="virInitialize" id="virInitialize"><code>virInitialize</code></a></h3><pre class="programlisting">int virInitialize (void)<br />
</pre><p>Initialize the library. It's better to call this routine at startup in multithreaded applications to avoid potential race when initializing the library.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreate" id="virNetworkCreate"><code>virNetworkCreate</code></a></h3><pre class="programlisting">int virNetworkCreate (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Create and start a defined network. If the call succeed the network moves from the defined to the running networks pools.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreateXML" id="virNetworkCreateXML"><code>virNetworkCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc)<br />
</pre><p>Create and start a new virtual network, based on an XML description similar to the one returned by virNetworkGetXMLDesc()</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>an XML description of the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virNetworkDefineXML" id="virNetworkDefineXML"><code>virNetworkDefineXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br />
</pre><p>Define a network, but does not create it</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the network, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the network otherwise</td></tr></tbody></table></div><h3><a name="virNetworkDestroy" id="virNetworkDestroy"><code>virNetworkDestroy</code></a></h3><pre class="programlisting">int virNetworkDestroy (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Destroy the network object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. The data structure is freed and should not be used thereafter if the call does not return an error. This function may requires privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkFree" id="virNetworkFree"><code>virNetworkFree</code></a></h3><pre class="programlisting">int virNetworkFree (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Free the network object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetAutostart" id="virNetworkGetAutostart"><code>virNetworkGetAutostart</code></a></h3><pre class="programlisting">int virNetworkGetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart)<br />
</pre><p>Provides a boolean value indicating whether the network configured to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetBridgeName" id="virNetworkGetBridgeName"><code>virNetworkGetBridgeName</code></a></h3><pre class="programlisting">char * virNetworkGetBridgeName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Provides a bridge interface name to which a domain may connect a network interface in order to join the network.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated interface name, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkGetConnect" id="virNetworkGetConnect"><code>virNetworkGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virNetworkGetConnect (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net)<br />
</pre><p>Provides the connection pointer associated with a network. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the network object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>net</tt></i>:</span></td><td>pointer to a network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetName" id="virNetworkGetName"><code>virNetworkGetName</code></a></h3><pre class="programlisting">const char * virNetworkGetName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Get the public name for that network</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the network object.</td></tr></tbody></table></div><h3><a name="virNetworkGetUUID" id="virNetworkGetUUID"><code>virNetworkGetUUID</code></a></h3><pre class="programlisting">int virNetworkGetUUID (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid)<br />
</pre><p>Get the UUID for a network</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetUUIDString" id="virNetworkGetUUIDString"><code>virNetworkGetUUIDString</code></a></h3><pre class="programlisting">int virNetworkGetUUIDString (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf)<br />
</pre><p>Get the UUID for a network as string. For more information about UUID see RFC4122.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetXMLDesc" id="virNetworkGetXMLDesc"><code>virNetworkGetXMLDesc</code></a></h3><pre class="programlisting">char * virNetworkGetXMLDesc (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags)<br />
</pre><p>Provide an XML description of the network. The description may be reused later to relaunch the network with virNetworkCreateXML().</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>and OR'ed set of extraction flags, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByName" id="virNetworkLookupByName"><code>virNetworkLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its name.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUID" id="virNetworkLookupByUUID"><code>virNetworkLookupByUUID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUIDString" id="virNetworkLookupByUUIDString"><code>virNetworkLookupByUUIDString</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkSetAutostart" id="virNetworkSetAutostart"><code>virNetworkSetAutostart</code></a></h3><pre class="programlisting">int virNetworkSetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart)<br />
</pre><p>Configure the network to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the network should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkUndefine" id="virNetworkUndefine"><code>virNetworkUndefine</code></a></h3><pre class="programlisting">int virNetworkUndefine (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Undefine a network but does not stop it if it is running</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNodeGetCellsFreeMemory" id="virNodeGetCellsFreeMemory"><code>virNodeGetCellsFreeMemory</code></a></h3><pre class="programlisting">int virNodeGetCellsFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells)<br />
</pre><p>This call returns the amount of free memory in one or more NUMA cells. The @freeMems array must be allocated by the caller and will be filled with the amount of free memory in kilobytes for each cell requested, starting with startCell (in freeMems[0]), up to either (startCell + maxCells), or the number of additional cells in the node, whichever is smaller.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>freeMems</tt></i>:</span></td><td>pointer to the array of unsigned long long</td></tr><tr><td><span class="term"><i><tt>startCell</tt></i>:</span></td><td>index of first cell to return freeMems info on.</td></tr><tr><td><span class="term"><i><tt>maxCells</tt></i>:</span></td><td>Maximum number of cells for which freeMems information can be returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of entries filled in freeMems, or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virNodeGetFreeMemory" id="virNodeGetFreeMemory"><code>virNodeGetFreeMemory</code></a></h3><pre class="programlisting">unsigned long long virNodeGetFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>provides the free memory available on the Node</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the available free memory in kilobytes or 0 in case of error</td></tr></tbody></table></div><h3><a name="virNodeGetInfo" id="virNodeGetInfo"><code>virNodeGetInfo</code></a></h3><pre class="programlisting">int virNodeGetInfo (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info)<br />
</pre><p>Extract hardware information about the node.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolBuild" id="virStoragePoolBuild"><code>virStoragePoolBuild</code></a></h3><pre class="programlisting">int virStoragePoolBuild (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Build the underlying storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 upon failure</td></tr></tbody></table></div><h3><a name="virStoragePoolCreate" id="virStoragePoolCreate"><code>virStoragePoolCreate</code></a></h3><pre class="programlisting">int virStoragePoolCreate (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Starts an inactive storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be started</td></tr></tbody></table></div><h3><a name="virStoragePoolCreateXML" id="virStoragePoolCreateXML"><code>virStoragePoolCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br />
</pre><p>Create a new storage based on its XML description. The pool is not persistent, so its definition will disappear when it is destroyed, or if the host is restarted</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDefineXML" id="virStoragePoolDefineXML"><code>virStoragePoolDefineXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags)<br />
</pre><p>Define a new inactive storage pool based on its XML description. The pool is persistent, until explicitly undefined.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDelete" id="virStoragePoolDelete"><code>virStoragePoolDelete</code></a></h3><pre class="programlisting">int virStoragePoolDelete (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Delete the underlying pool resources. This is a non-recoverable operation. The <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object itself is not free'd.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for obliteration process</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be obliterate</td></tr></tbody></table></div><h3><a name="virStoragePoolDestroy" id="virStoragePoolDestroy"><code>virStoragePoolDestroy</code></a></h3><pre class="programlisting">int virStoragePoolDestroy (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Destroy an active storage pool. This will deactivate the pool on the host, but keep any persistent config associated with it. If it has a persistent config it can later be restarted with virStoragePoolCreate(). This does not free the associated <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be destroyed</td></tr></tbody></table></div><h3><a name="virStoragePoolFree" id="virStoragePoolFree"><code>virStoragePoolFree</code></a></h3><pre class="programlisting">int virStoragePoolFree (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Free a storage pool object, releasing all memory associated with it. Does not change the state of the pool on the host.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be free'd.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetAutostart" id="virStoragePoolGetAutostart"><code>virStoragePoolGetAutostart</code></a></h3><pre class="programlisting">int virStoragePoolGetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart)<br />
</pre><p>Fetches the value of the autostart flag, which determines whether the pool is automatically started at boot time</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>location in which to store autostart flag</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolGetConnect" id="virStoragePoolGetConnect"><code>virStoragePoolGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStoragePoolGetConnect (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Provides the connection pointer associated with a storage pool. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the pool object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetInfo" id="virStoragePoolGetInfo"><code>virStoragePoolGetInfo</code></a></h3><pre class="programlisting">int virStoragePoolGetInfo (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info)<br />
</pre><p>Get volatile information about the storage pool such as free space / usage summary</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetName" id="virStoragePoolGetName"><code>virStoragePoolGetName</code></a></h3><pre class="programlisting">const char * virStoragePoolGetName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Fetch the locally unique name of the storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the name of the pool, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUID" id="virStoragePoolGetUUID"><code>virStoragePoolGetUUID</code></a></h3><pre class="programlisting">int virStoragePoolGetUUID (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid)<br />
</pre><p>Fetch the globally unique ID of the storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUIDString" id="virStoragePoolGetUUIDString"><code>virStoragePoolGetUUIDString</code></a></h3><pre class="programlisting">int virStoragePoolGetUUIDString (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf)<br />
</pre><p>Fetch the globally unique ID of the storage pool as a string</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetXMLDesc" id="virStoragePoolGetXMLDesc"><code>virStoragePoolGetXMLDesc</code></a></h3><pre class="programlisting">char * virStoragePoolGetXMLDesc (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Fetch an XML document describing all aspects of the storage pool. This is suitable for later feeding back into the <a href="libvirt-libvirt.html#virStoragePoolCreateXML">virStoragePoolCreateXML</a> method.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML format options (set of virDomainXMLFlags)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolListVolumes" id="virStoragePoolListVolumes"><code>virStoragePoolListVolumes</code></a></h3><pre class="programlisting">int virStoragePoolListVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Fetch list of storage volume names, limiting to at most maxnames.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array in which to storage volume names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names fetched, or -1 on error</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByName" id="virStoragePoolLookupByName"><code>virStoragePoolLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Fetch a storage pool based on its unique name</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUID" id="virStoragePoolLookupByUUID"><code>virStoragePoolLookupByUUID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Fetch a storage pool based on its globally unique id</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUIDString" id="virStoragePoolLookupByUUIDString"><code>virStoragePoolLookupByUUIDString</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Fetch a storage pool based on its globally unique id</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByVolume" id="virStoragePoolLookupByVolume"><code>virStoragePoolLookupByVolume</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByVolume (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch a storage pool which contains a particular volume</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolNumOfVolumes" id="virStoragePoolNumOfVolumes"><code>virStoragePoolNumOfVolumes</code></a></h3><pre class="programlisting">int virStoragePoolNumOfVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Fetch the number of storage volumes within a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of storage pools, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolRefresh" id="virStoragePoolRefresh"><code>virStoragePoolRefresh</code></a></h3><pre class="programlisting">int virStoragePoolRefresh (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Request that the pool refresh its list of volumes. This may involve communicating with a remote server, and/or initializing new devices at the OS layer</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags to control refresh behaviour (currently unused, use 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the volume list was refreshed, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolSetAutostart" id="virStoragePoolSetAutostart"><code>virStoragePoolSetAutostart</code></a></h3><pre class="programlisting">int virStoragePoolSetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart)<br />
</pre><p>Sets the autostart flag</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>new flag setting</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolUndefine" id="virStoragePoolUndefine"><code>virStoragePoolUndefine</code></a></h3><pre class="programlisting">int virStoragePoolUndefine (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Undefine an inactive storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStorageVolCreateXML" id="virStorageVolCreateXML"><code>virStorageVolCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolCreateXML (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags)<br />
</pre><p>Create a storage volume within a pool based on an XML description. Not all pools support creation of volumes</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>xmldesc</tt></i>:</span></td><td>description of volume to create</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for creation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolDelete" id="virStorageVolDelete"><code>virStorageVolDelete</code></a></h3><pre class="programlisting">int virStorageVolDelete (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br />
</pre><p>Delete the storage volume from the pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolFree" id="virStorageVolFree"><code>virStorageVolFree</code></a></h3><pre class="programlisting">int virStorageVolFree (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Release the storage volume handle. The underlying storage volume contains to exist</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetConnect" id="virStorageVolGetConnect"><code>virStorageVolGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStorageVolGetConnect (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Provides the connection pointer associated with a storage volume. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the volume object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStorageVolGetInfo" id="virStorageVolGetInfo"><code>virStorageVolGetInfo</code></a></h3><pre class="programlisting">int virStorageVolGetInfo (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info)<br />
</pre><p>Fetches volatile information about the storage volume such as its current allocation</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStorageVolGetKey" id="virStorageVolGetKey"><code>virStorageVolGetKey</code></a></h3><pre class="programlisting">const char * virStorageVolGetKey (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume key. This is globally unique, so the same volume will have the same key no matter what host it is accessed from</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume key, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetName" id="virStorageVolGetName"><code>virStorageVolGetName</code></a></h3><pre class="programlisting">const char * virStorageVolGetName (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume name. This is unique within the scope of a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume name, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetPath" id="virStorageVolGetPath"><code>virStorageVolGetPath</code></a></h3><pre class="programlisting">char * virStorageVolGetPath (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume path. Depending on the pool configuration this is either persistent across hosts, or dynamically assigned at pool startup. Consult pool documentation for information on getting the persistent naming</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume path, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetXMLDesc" id="virStorageVolGetXMLDesc"><code>virStorageVolGetXMLDesc</code></a></h3><pre class="programlisting">char * virStorageVolGetXMLDesc (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br />
</pre><p>Fetch an XML document describing all aspects of the storage volume</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML generation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByKey" id="virStorageVolLookupByKey"><code>virStorageVolLookupByKey</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByKey (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key)<br />
</pre><p>Fetch a pointer to a storage volume based on its globally unique key</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>key</tt></i>:</span></td><td>globally unique key</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByName" id="virStorageVolLookupByName"><code>virStorageVolLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)<br />
</pre><p>Fetch a pointer to a storage volume based on its name within a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByPath" id="virStorageVolLookupByPath"><code>virStorageVolLookupByPath</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByPath (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)<br />
</pre><p>Fetch a pointer to a storage volume based on its locally (host) unique path</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>locally unique path</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div></div></div><div id="footer"><p id="sponsor">
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<?xml version="1.0"?>
<html>
<body>
<h1>Driver support matrix</h1>
<p>
This page documents which <a href="html/">libvirt calls</a> work on
which libvirt drivers / hypervisors, and which version the API appeared
in.
</p>
<p>
This information changes frequently. This page was last checked or
updated on <i>2008-06-05</i>.
</p>
<h3>Domain functions</h3>
<p> x = not supported; empty cell means no information </p>
<table class="top_table">
<tr>
<th> Function </th>
<th> Since </th>
<th><a href="drvxen.html">Xen</a></th>
<th><a href="drvqemu.html">QEMU</a></th>
<th><a href="drvkvm.html">KVM</a></th>
<th><a href="remote.html">Remote</a></th>
</tr>
<tr>
<td> virConnectClose </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetCapabilities </td>
<td> 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetHostname </td>
<td> 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
<td> &#x2265; 0.3.3 </td>
<td> &#x2265; 0.3.3 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetMaxVcpus </td>
<td> 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetType </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetURI </td>
<td> 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetVersion </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectListDefinedDomains </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectListDomains </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectNumOfDefinedDomains </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectNumOfDomains </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectOpen </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectOpenAuth </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> virConnectOpenReadOnly </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainAttachDevice </td>
<td> 0.1.9 </td>
<td> &#x2265; 0.1.9 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainBlockPeek </td>
<td> 0.4.3 </td>
<td> 0.4.3 </td>
<td> 0.4.3 </td>
<td> 0.4.3 </td>
<td> x </td>
</tr>
<tr>
<td> virDomainBlockStats </td>
<td> 0.3.2 </td>
<td> &#x2265; 0.3.2 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.2 </td>
</tr>
<tr>
<td> virDomainCoreDump </td>
<td> 0.1.9 </td>
<td> &#x2265; 0.1.9 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainCreate </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainCreateLinux </td>
<td> All </td>
<td> &#x2265; 0.0.5 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainDefineXML </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainDestroy </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainDetachDevice </td>
<td> 0.1.9 </td>
<td> &#x2265; 0.1.9 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainFree </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetAutostart </td>
<td> 0.2.1 </td>
<td> x </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetConnect </td>
<td> 0.3.0 </td>
<td colspan="4"> not a HV function </td>
</tr>
<tr>
<td> virDomainGetID </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetInfo </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetMaxMemory </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetMaxVcpus </td>
<td> 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetName </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetOSType </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetSchedulerParameters </td>
<td> 0.2.3 </td>
<td> &#x2265; 0.2.3 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetSchedulerType </td>
<td> 0.2.3 </td>
<td> &#x2265; 0.2.3 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetUUID </td>
<td> 0.1.10 </td>
<td> &#x2265; 0.1.10 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetUUIDString </td>
<td> 0.1.10 </td>
<td> &#x2265; 0.1.10 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetVcpus </td>
<td> 0.1.4 </td>
<td> &#x2265; 0.1.4 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainInterfaceStats </td>
<td> 0.3.2 </td>
<td> &#x2265; 0.3.2 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.2 </td>
</tr>
<tr>
<td> virDomainGetXMLDesc </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainLookupByID </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainLookupByName </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainLookupByUUID </td>
<td> 0.1.10 </td>
<td> &#x2265; 0.1.10 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainLookupByUUIDString </td>
<td> 0.1.10 </td>
<td> &#x2265; 0.1.10 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainMigrate </td>
<td> 0.3.2 </td>
<td> &#x2265; 0.3.2 </td>
<td> x </td>
<td> x </td>
<td> 0.3.2 </td>
</tr>
<tr>
<td> virDomainPinVcpu </td>
<td> 0.1.4 </td>
<td> &#x2265; 0.1.4 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainReboot </td>
<td> 0.1.0 </td>
<td> &#x2265; 0.1.0 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainRestore </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> &#x2265; 0.3.2 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainResume </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSave </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> &#x2265; 0.3.2 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetAutostart </td>
<td> 0.2.1 </td>
<td> x </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetMaxMemory </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetMemory </td>
<td> 0.1.1 </td>
<td> &#x2265; 0.1.1 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetSchedulerParameters </td>
<td> 0.2.3 </td>
<td> &#x2265; 0.2.3 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetVcpus </td>
<td> 0.1.4 </td>
<td> &#x2265; 0.1.4 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainShutdown </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSuspend </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainUndefine </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virGetVersion </td>
<td> All </td>
<td> All </td>
<td colspan="3"> Returns -1 if HV unsupported. </td>
</tr>
<tr>
<td> virInitialize </td>
<td> 0.1.0 </td>
<td colspan="4"> not a HV function </td>
</tr>
<tr>
<td> virDomainMemoryPeek </td>
<td> 0.4.3 </td>
<td> x </td>
<td> 0.4.3 </td>
<td> 0.4.3 </td>
<td> x </td>
</tr>
<tr>
<td> virNodeGetInfo </td>
<td> 0.1.0 </td>
<td> &#x2265; 0.1.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virNodeGetFreeMemory </td>
<td> 0.3.3 </td>
<td> &#x2265; 0.3.3 </td>
<td> x </td>
<td> x </td>
<td> x </td>
</tr>
<tr>
<td> virNodeGetCellsFreeMemory </td>
<td> 0.3.3 </td>
<td> &#x2265; 0.3.3 </td>
<td> x </td>
<td> x </td>
<td> x </td>
</tr>
</table>
<h3>Network functions</h3>
<p>
Network functions are not hypervisor-specific.They require the libvirtd
daemon to be running. Most network functions first appeared in libvirt 0.2.0.
</p>
<table class="top_table">
<tr>
<th> Function </th>
<th> Since </th>
</tr>
<tr>
<td> virConnectNumOfNetworks </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virConnectListNetworks </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virConnectNumOfDefinedNetworks </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virConnectListDefinedNetworks </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkCreate </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkCreateXML </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkDefineXML </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkDestroy </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkFree </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetAutostart </td>
<td> 0.2.1 </td>
</tr>
<tr>
<td> virNetworkGetConnect </td>
<td> 0.3.0 </td>
</tr>
<tr>
<td> virNetworkGetBridgeName </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetName </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetUUID </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetUUIDString </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetXMLDesc </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkLookupByName </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkLookupByUUID </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkLookupByUUIDString </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkSetAutostart </td>
<td> 0.2.1 </td>
</tr>
<tr>
<td> virNetworkUndefine </td>
<td> 0.2.0 </td>
</tr>
</table>
</body>
</html>

View File

@ -1,143 +1,145 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
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<h3>what is <span class="style1">libvirt?</span></h3>
<p>Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software available
under the <a href="http://www.opensource.org/licenses/lgpl-license.html">GNU
Lesser General Public License</a>. Virtualization of the Linux Operating
System means the ability to run multiple instances of Operating Systems
concurrently on a single hardware system where the basic resources are driven
by a Linux (or Solaris) instance. The library aims at providing a long term
stable C API initially for <a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen
paravirtualization</a> but it can also integrate with other
virtualization mechanisms. It currently also supports <a href="http://fabrice.bellard.free.fr/qemu/">QEMU</a>, <a href="http://kvm.qumranet.com/">KVM</a> and
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</h3>
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</li>
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<a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a>
</li>
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</li>
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<a href="http://libvirt.org/CIM/">CIM provider</a>
</li>
<li>
<a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a>
</li>
<li>
<a href="http://libvirt.org/ocaml/">OCaml bindings</a>
</li>
<li>
<a href="http://libvirt.org/ruby/">Ruby bindings</a>
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<p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p>
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<div id="bottom">
<p class="p1"></p>
<div id="content">
<h1>The virtualization API</h1>
<h2>libvirt is:</h2>
<ul>
<li>
A toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes).
</li>
<li>
Free software available under the
<a href="http://www.opensource.org/licenses/lgpl-license.html">GNU
Lesser General Public License</a>.
</li>
<li>
A long term stable C API
</li>
<li>
A set of bindings for common languages
</li>
<li>
A <a href="CIM/">CIM provider</a> for the DMTF virtualization schema
</li>
</ul>
<h2>libvirt supports:</h2>
<ul>
<li>
The <a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen</a> hypervisor
on Linux and Solaris hosts.
</li>
<li>
The <a href="http://fabrice.bellard.free.fr/qemu/">QEMU</a> emulator
</li>
<li>
The <a href="http://kvm.qumranet.com/kvmwiki">KVM</a> Linux hypervisor
</li>
<li>
The <a href="http://lxc.sourceforge.net/">LXC</a> Linux container system
</li>
<li>
The <a href="http://openvz.org/">OpenVZ</a> Linux container system
</li>
<li>
Storage on IDE/SCSI/USB disks, FibreChannel, LVM, iSCSI, NFS and filesystems
</li>
</ul>
<h2>libvirt provides:</h2>
<ul>
<li>Remote management using TLS encryption and x509 certificates</li>
<li>Remote management authenticating with Kerberos and SASL</li>
<li>Local access control using PolicyKit</li>
<li>Zero-conf discovery using Avahi multicast-DNS</li>
<li>Management of virtual machines, virtual networks and storage</li>
</ul>
<p class="image">
<img src="libvirtLogo.png" alt="libvirt Logo" />
</p>
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Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
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68
docs/index.html.in Normal file
View File

@ -0,0 +1,68 @@
<?xml version="1.0"?>
<html>
<body>
<h1>The virtualization API</h1>
<h2>libvirt is:</h2>
<ul>
<li>
A toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes).
</li>
<li>
Free software available under the
<a href="http://www.opensource.org/licenses/lgpl-license.html">GNU
Lesser General Public License</a>.
</li>
<li>
A long term stable C API
</li>
<li>
A set of bindings for common languages
</li>
<li>
A <a href="CIM/">CIM provider</a> for the DMTF virtualization schema
</li>
</ul>
<h2>libvirt supports:</h2>
<ul>
<li>
The <a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen</a> hypervisor
on Linux and Solaris hosts.
</li>
<li>
The <a href="http://fabrice.bellard.free.fr/qemu/">QEMU</a> emulator
</li>
<li>
The <a href="http://kvm.qumranet.com/kvmwiki">KVM</a> Linux hypervisor
</li>
<li>
The <a href="http://lxc.sourceforge.net/">LXC</a> Linux container system
</li>
<li>
The <a href="http://openvz.org/">OpenVZ</a> Linux container system
</li>
<li>
Storage on IDE/SCSI/USB disks, FibreChannel, LVM, iSCSI, NFS and filesystems
</li>
</ul>
<h2>libvirt provides:</h2>
<ul>
<li>Remote management using TLS encryption and x509 certificates</li>
<li>Remote management authenticating with Kerberos and SASL</li>
<li>Local access control using PolicyKit</li>
<li>Zero-conf discovery using Avahi multicast-DNS</li>
<li>Management of virtual machines, virtual networks and storage</li>
</ul>
<p class="image">
<img src="libvirtLogo.png" alt="libvirt Logo"/>
</p>
</body>
</html>

View File

@ -15,7 +15,7 @@
# mysqladmin -u root password new_password
# Create the new database libvir
# mysqladmin -p create libvir
# Create a database user 'veillard' and give him passord access
# Create a database user 'veillard' and give him password access
# change veillard and abcde with the right user name and passwd
# mysql -p
# password:
@ -55,7 +55,7 @@ def callback(ctx, str):
libxml2.registerErrorHandler(callback, None)
#
# The dictionnary of tables required and the SQL command needed
# The dictionary of tables required and the SQL command needed
# to create them
#
TABLES={
@ -449,7 +449,7 @@ def updateWordArchive(name, id, relevance):
#########################################################################
# #
# Word dictionnary and analysis routines #
# Word dictionary and analysis routines #
# #
#########################################################################
@ -1027,7 +1027,9 @@ def analyzeHTML(doc, resource):
def analyzeHTMLPages():
ret = 0
HTMLfiles = glob.glob("*.html") + glob.glob("tutorial/*.html")
HTMLfiles = glob.glob("*.html") + glob.glob("tutorial/*.html") + \
glob.glob("CIM/*.html") + glob.glob("ocaml/*.html") + \
glob.glob("ruby/*.html")
for html in HTMLfiles:
if html[0:3] == "API":
continue

View File

@ -1,31 +1,150 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Introduction</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Introduction</h1><p>Libvirt is a C toolkit to interact with the virtualization capabilities of
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<div id="content">
<h1>Architecture</h1>
<p>Libvirt is a C toolkit to interact with the virtualization capabilities of
recent versions of Linux (and other OSes), but libvirt won't try to provide
all possible interfaces for interacting with the virtualization features.</p><p>To avoid ambiguity about the terms used here here are the definitions for
some of the specific concepts used in libvirt documentation:</p><ul><li>a <strong>node</strong> is a single physical machine</li>
<li>an <strong>hypervisor</strong> is a layer of software allowing to
all possible interfaces for interacting with the virtualization features.</p>
<p>To avoid ambiguity about the terms used here here are the definitions for
some of the specific concepts used in libvirt documentation:</p>
<ul><li>a <strong>node</strong> is a single physical machine</li><li>an <strong>hypervisor</strong> is a layer of software allowing to
virtualize a node in a set of virtual machines with possibly different
configurations than the node itself</li>
<li>a <strong>domain</strong> is an instance of an operating system running
on a virtualized machine provided by the hypervisor</li>
</ul><p style="text-align: center"><img alt="Hypervisor and domains running on a node" src="node.gif" /></p><p>Now we can define the goal of libvirt: to provide the lowest possible
generic and stable layer to manage domains on a node.</p><p>This implies the following:</p><ul><li>the API should not be targeted to a single virtualization environment
configurations than the node itself</li><li>a <strong>domain</strong> is an instance of an operating system running
on a virtualized machine provided by the hypervisor</li></ul>
<p class="image">
<img alt="Hypervisor and domains running on a node" src="node.gif" /></p>
<p>Now we can define the goal of libvirt: to provide the lowest possible
generic and stable layer to manage domains on a node.</p>
<p>This implies the following:</p>
<ul><li>the API should not be targeted to a single virtualization environment
though Xen is the current default, which also means that some very
specific capabilities which are not generic enough may not be provided as
libvirt APIs</li>
<li>the API should allow to do efficiently and cleanly all the operations
needed to manage domains on a node</li>
<li>the API will not try to provide hight level multi-nodes management
libvirt APIs</li><li>the API should allow to do efficiently and cleanly all the operations
needed to manage domains on a node</li><li>the API will not try to provide high level multi-nodes management
features like load balancing, though they could be implemented on top of
libvirt</li>
<li>stability of the API is a big concern, libvirt should isolate
libvirt</li><li>stability of the API is a big concern, libvirt should isolate
applications from the frequent changes expected at the lower level of the
virtualization framework</li>
</ul><p>So libvirt should be a building block for higher level management tools
virtualization framework</li></ul>
<p>So libvirt should be a building block for higher level management tools
and for applications focusing on virtualization of a single node (the only
exception being domain migration between node capabilities which may need to
be added at the libvirt level). Where possible libvirt should be extendable
to be able to provide the same API for remote nodes, however this is not the
case at the moment, the code currently handle only local node accesses
(extension for remote access support is being worked on, see <a href="bugs.html">the mailing list</a> discussions about it).</p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
(extension for remote access support is being worked on, see <a href="bugs.html">the mailing list</a> discussions about it).</p>
</div>
</div>
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<p id="sponsor">
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
</div>
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</html>

46
docs/intro.html.in Normal file
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@ -0,0 +1,46 @@
<?xml version="1.0"?>
<html>
<body>
<h1>Architecture</h1>
<p>Libvirt is a C toolkit to interact with the virtualization capabilities of
recent versions of Linux (and other OSes), but libvirt won't try to provide
all possible interfaces for interacting with the virtualization features.</p>
<p>To avoid ambiguity about the terms used here here are the definitions for
some of the specific concepts used in libvirt documentation:</p>
<ul>
<li>a <strong>node</strong> is a single physical machine</li>
<li>an <strong>hypervisor</strong> is a layer of software allowing to
virtualize a node in a set of virtual machines with possibly different
configurations than the node itself</li>
<li>a <strong>domain</strong> is an instance of an operating system running
on a virtualized machine provided by the hypervisor</li>
</ul>
<p class="image">
<img alt="Hypervisor and domains running on a node" src="node.gif"/>
</p>
<p>Now we can define the goal of libvirt: to provide the lowest possible
generic and stable layer to manage domains on a node.</p>
<p>This implies the following:</p>
<ul>
<li>the API should not be targeted to a single virtualization environment
though Xen is the current default, which also means that some very
specific capabilities which are not generic enough may not be provided as
libvirt APIs</li>
<li>the API should allow to do efficiently and cleanly all the operations
needed to manage domains on a node</li>
<li>the API will not try to provide high level multi-nodes management
features like load balancing, though they could be implemented on top of
libvirt</li>
<li>stability of the API is a big concern, libvirt should isolate
applications from the frequent changes expected at the lower level of the
virtualization framework</li>
</ul>
<p>So libvirt should be a building block for higher level management tools
and for applications focusing on virtualization of a single node (the only
exception being domain migration between node capabilities which may need to
be added at the libvirt level). Where possible libvirt should be extendable
to be able to provide the same API for remote nodes, however this is not the
case at the moment, the code currently handle only local node accesses
(extension for remote access support is being worked on, see <a href="bugs.html">the mailing list</a> discussions about it).</p>
</body>
</html>

View File

@ -75,7 +75,7 @@ some of the existing code ?
Pros:
- avoid the GPL Licence problem potentially more users
- allow do build a cleaner more stable layer
- the existing code is frigthening
- the existing code is frightening
Cons:
- awful lot of work debugging very hard
- will still require existing Xen code to be running
@ -93,7 +93,7 @@ some of the existing code ?
Potentially the API could be implemented as a layer on top of the existing
libxc C code library and then progressively migrating out the existing
dependance to Xen code as the interfaces stabilize.
dependence to Xen code as the interfaces stabilize.
Daniel Veillard <veillard@redhat.com>

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View File

@ -567,14 +567,14 @@
<field name='domain' type='int' info=' What part of the library raised this error'/>
<field name='message' type='char *' info=' human-readable informative error message'/>
<field name='level' type='virErrorLevel' info=' how consequent is the error'/>
<field name='conn' type='virConnectPtr' info=' the connection if available'/>
<field name='dom' type='virDomainPtr' info=' the domain if available'/>
<field name='conn' type='virConnectPtr' info=' connection if available, see note above'/>
<field name='dom' type='virDomainPtr' info=' domain if available, see note above'/>
<field name='str1' type='char *' info=' extra string information'/>
<field name='str2' type='char *' info=' extra string information'/>
<field name='str3' type='char *' info=' extra string information'/>
<field name='int1' type='int' info=' extra number information'/>
<field name='int2' type='int' info=' extra number information'/>
<field name='net' type='virNetworkPtr' info=' the network if available'/>
<field name='net' type='virNetworkPtr' info=' network if available, see note above'/>
</struct>
<typedef name='virErrorDomain' file='virterror' type='enum'/>
<typedef name='virErrorLevel' file='virterror' type='enum'/>

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