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In a recent expansion of the documentation on network forward modes, I
incorrectly stated that incoming sessions to guests on routed networks
were blocked. This is true for guests on NATed networks, but not
routed. This patch corrects that error, and adds a pointer to the
nwfilter page for those who do want to restrict incoming sessions to
hosts on routed networks.
There is a little difference between the output of domxml-to-native and the actual commandline.
No matter qemu is in control or readline mode, domxml-to-native always converts it to readline mode.
That is because the parameter "monitor_json" for qemuBuildCommandLine() is always set to false
in qemuDomainXMLToNative().
Signed-off-by: tangchen <tangchen@cn.fujitsu.com>
Clarify some of the effects of managed passthrough <hostdev> devices;
with recent changes (commit d093547), a nodedev-reattach is only needed
to pair up to an explicit nodedev-dettach (but beware that older
virt-manager has a bug where it uses explicit nodedev-dettach under the
hood when using the gui to hotplug a hostdev device).
* docs/formatdomain.html.in: Mention reattach.
* tools/virsh.pod (nodedev): Mention managed mode.
The glibc ones (intentionally) cannot handle ptys opened in a
devpts not mounted at /dev/pts.
Drop the (un-exported, unused) virFileOpenTtyAt.
Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Add test cases for parsing the qemu-name-space.
This is based on qemuxml2argv{test,data/}, but can not reside in
qemuxml2argv{test,data/} because ...
1. qemuxmlns-qemu-ns-domain.xml is not schema-valid and breaks
domainschematest. The test is still important to detect xmlns:qemu
bindings to a name-space other than
http://libvirt.org/schemas/domain/qemu/1.0
2. they break qemuxml2xml, because the xmlns:qemu binding is moved to
the top-level <domain> element when converting from argv to xml.
Signed-off-by: Philipp Hahn <hahn@univention.de>
The XML parser for the qemu specific extensions expects the qemu name-space
to be bound to the 'qemu' prefix. This is too strict, since the name of the
name-space-prefix is only meant as an internal lookup key. Only the associated
URI is relevant.
<domain>...
<qemu:commandline xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0">
...</qemu:commandline>
</domain>
<domain xmlns:ns0="http://libvirt.org/schemas/domain/qemu/1.0">...
<ns0:commandline>
...</ns0:commandline>
</domain>
<domain xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0">
<qemu:commandline xmlns:qemu="urn:foo">
...</qemu:commandline>
</domain>
Remove the test for checking the name-space binding on the top-level <domain>
element. Registering the name-space with XPath is enough.
Signed-off-by: Philipp Hahn <hahn@univention.de>
When I compile libvirt with gcc-4.6.1 in ubuntu 11.10, got error as below:
CCLD libvirtd
/usr/bin/ld: ../src/.libs/libvirt_driver_qemu.a(libvirt_driver_qemu_la-qemu_migration.o): undefined reference to symbol 'gnutls_x509_crt_get_dn@@GNUTLS_1_4'
/usr/bin/ld: note: 'gnutls_x509_crt_get_dn@@GNUTLS_1_4' is defined in DSO /usr/lib/x86_64-linux-gnu/libgnutls.so so try adding it to the linker command line
/usr/lib/x86_64-linux-gnu/libgnutls.so: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
make[3]: *** [libvirtd] Error 1
It can compile with gcc-4.5.2 in ubuntu 11.04, but it can not compile with gcc-4.6.1 in ubuntu 11.10.
I didn't find reason. Does Anyone know the reason or the different between gcc-4.5.2 and gcc-4.6.1?
I still provide a patch for this. Just make it is working now.
Signed-off-by: soulxu <soulxu@soulxu-ThinkPad-T410.(none)>
This adds support for a libvirt client configuration file
either /etc/libvirt/libvirt.conf for privileged clients,
or $HOME/.libvirt/libvirt.conf for unprivileged clients.
It allows one parameter
uri_aliases = [
"hail=qemu+ssh://root@hail.cloud.example.com/system",
"sleet=qemu+ssh://root@sleet.cloud.example.com/system",
]
Any call to virConnectOpen with a non-NULL URI will first
attempt to match against the uri_aliases list. An application
can disable this by using VIR_CONNECT_NO_ALIASES
* docs/uri.html.in: Document URI aliases
* include/libvirt/libvirt.h.in: Add VIR_CONNECT_NO_ALIASES
* libvirt.spec.in, mingw32-libvirt.spec.in: Add /etc/libvirt/libvirt.conf
* src/Makefile.am: Install default config file
* src/libvirt.c: Add support for URI aliases
* src/remote/remote_driver.c: Don't try to handle URIs
with no scheme and which clearly are not paths
* src/util/conf.c: Don't raise error on virConfFree(NULL)
* src/xen/xen_driver.c: Don't raise error on URIs
with no scheme
We recently added support for VIR_DOMAIN_START_AUTODESTROY and
an impl to the QEMU driver. It is very desirable to support in
other drivers, so this adds it to LXC and UML
* src/lxc/lxc_conf.h, src/lxc/lxc_driver.c,
src/uml/uml_conf.h, src/uml/uml_driver.c: Wire up autodestroy
functions
Noticed when testing new libvirt against old qemu that lacked the
snapshot_blkdev HMP command. Libvirt was mistakenly treating the
command as successful, and re-writing the domain XML to use the
just-created 0-byte file, rendering the domain broken on restart.
* src/qemu/qemu_monitor_text.c (qemuMonitorTextDiskSnapshot):
Notice another possible error message.
* src/qemu/qemu_driver.c
(qemuDomainSnapshotCreateSingleDiskActive): Don't keep 0-byte file
on failure.
compile error:
./src/.libs/libvirt_driver_qemu.a(libvirt_driver_qemu_la-qemu_hostdev.o): In function `qemuPrepareHostdevPCIDevices':
/home/soulxu/data/work-code/libvirt/src/qemu/qemu_hostdev.c:183: undefined reference to `pciDeviceListFind'
/home/soulxu/data/work-code/libvirt/src/qemu/qemu_hostdev.c:230: undefined reference to `pciDeviceListFind'
./src/.libs/libvirt_driver_qemu.a(libvirt_driver_qemu_la-qemu_hostdev.o): In function `qemuGetActivePciHostDeviceList':
/home/soulxu/data/work-code/libvirt/src/qemu/qemu_hostdev.c:102: undefined reference to `pciDeviceListFind'
./src/.libs/libvirt_driver_qemu.a(libvirt_driver_qemu_la-qemu_hostdev.o): In function `qemuDomainReAttachHostdevDevices':
/home/soulxu/data/work-code/libvirt/src/qemu/qemu_hostdev.c:370: undefined reference to `pciDeviceListFind'
Signed-off-by: Xu He Jie <xuhj@linux.vnet.ibm.com>
probes.h is generated in build directory; setting a dependency on
probes.h from source directory doesn't work well in VPATH builds. Caused
by commit 1afcfbdda0
When I run 'make dist', I receive the following error messages:
make[1]: Entering directory `/home/wency/source/libvirt/src'
GEN remote/remote_protocol.h
GEN remote/remote_protocol.c
GEN remote/qemu_protocol.h
GEN remote/qemu_protocol.c
GEN remote/qemu_client_bodies.h
CC libvirt_driver_remote_la-remote_protocol.lo
In file included from ./remote/remote_protocol.h:16,
from ./remote/remote_protocol.c:7:
/internal.h:249:23: error: probes.h: No such file or directory
make[1]: *** [libvirt_driver_remote_la-remote_protocol.lo] Error 1
make[1]: Leaving directory `/home/wency/source/libvirt/src'
make: *** [distdir] Error 1
The reason is that we use probes.h before generating it.
BZ# https://bugzilla.redhat.com/show_bug.cgi?id=736214
The problem is caused by the original info of domain's PCI dev is
maintained by qemu_driver->activePciHostdevs list, (E.g. dev->reprobe,
which stands for whether need to reprobe driver for the dev when do
reattachment). The fields (dev->reprobe, dev->unbind_from_stub, and
dev->remove_slot) are initialized properly when preparing the PCI
device for managed attachment. However, when do reattachment, it
construct a complete new "pciDevice" without honoring the original
dev info, and thus the dev won't get the original driver or can get
other problem.
This patch is to fix the problem by get the devs from list
driver->activePciHostdevs.
Tested with following 3 scenarios:
* the PCI was bound to some driver not pci-stub before attaching
result: the device will be bound to the original driver
* the PCI was bound to pci-stub before attaching
result: no driver reprobing, and still bound to pci-stub
* The PCI was not bound to any driver
result: no driver reprobing, and still not bound to any driver.
Commit 0472f39 plugged a leak, but introduced another bug:
Actually looks like physfndev is conditionally allocated in getPhysfnDev
Its better to modify getPhysfnDev to allocate physfndev every time.
A few people have attempted to use the new forwarding modes with older
versions of libvirt. The docs where the modes are described have
always stated the minimum required libvirt version, but the examples
at the end didn't, which I believe is what has caused the confusion.
Similarly, the section on portgroups now has a version tag added at
the beginning.
I also noticed that there was no example of defining a <dns> hostname,
so I added one, as well as making the domain name example more
recognizable (by adding ".com" to the domain).
When failing on starting a domain, it tries to reattach all the PCI
devices defined in the domain conf, regardless of whether the devices
are still used by other domain. This will cause the devices to be deleted
from the list qemu_driver->activePciHostdevs, thus the devices will be
thought as usable even if it's not true. And following commands
nodedev-{reattach,reset} will be successful.
How to reproduce:
1) Define two domains with same PCI device defined in the confs.
2) # virsh start domain1
3) # virsh start domain2
4) # virsh nodedev-reattach $pci_device
You will see the device will be reattached to host successfully.
As pciDeviceReattach just check if the device is still used by
other domain via checking if the device is in list driver->activePciHostdevs,
however, the device is deleted from the list by step 2).
This patch is to prohibit the bug by:
1) Prohibit a domain starting or device attachment right at
preparation period (qemuPrepareHostdevPCIDevices) if the
device is in list driver->activePciHostdevs, which means
it's used by other domain.
2) Introduces a new field for struct _pciDevice, (const char *used_by),
it will be set as the domain name at preparation period,
(qemuPrepareHostdevPCIDevices). Thus we can prohibit deleting
the device from driver->activePciHostdevs if it's still used by
other domain when stopping the domain process.
* src/pci.h (define two internal functions, pciDeviceSetUsedBy and
pciDevceGetUsedBy)
* src/pci.c (new field "const char *used_by" for struct _pciDevice,
implementations for the two new functions)
* src/libvirt_private.syms (Add the two new internal functions)
* src/qemu_hostdev.h (Modify the definition of functions
qemuPrepareHostdevPCIDevices, and qemuDomainReAttachHostdevDevices)
* src/qemu_hostdev.c (Prohibit preparation and don't delete the
device from activePciHostdevs list if it's still used by other domain)
* src/qemu_hotplug.c (Update function usage, as the definitions are
changed)
Signed-off-by: Eric Blake <eblake@redhat.com>
virInitialize() → xenRegister() → xenhypervisorInit() determines the
version of the Hypervisor. This breaks xencapstest when building as root
on a dom0 system, since xenHypervisorBuildCapabilities() adds the "hap"
and "viridian" features based on the detected version.
Add an optional parameter to xenhypervisorInit() to disable automatic
detection of the Hypervisor version. The passed in arguments are used
instead.
Signed-off-by: Philipp Hahn <hahn@univention.de>
Calling virInitialize() → xenRegister() → xenhypervisorInit() directly
opens a connection to the Xen Hypervisor, which breaks some unit tests.
Move all static variables into a struct to make it easier to override
them when testing.
Signed-off-by: Philipp Hahn <hahn@univention.de>
Coverity detected that the only way to get to the cleanup label
is if objectSpec had been successfully allocated, so the null
check was dead code.
* src/esx/esx_vi.c (esxVI_LookupObjectContentByType): Drop
redundant null check.
When defining macros, you can't put comments on the end of the
line because they will get included in the macro definition
* mingw32-libvirt.spec.in: Fix comment about hyperv
Detected by Coverity. Leak present since commit 874e65a; and
while commit d50bb45 tried to fix the issue, it missed a path.
* src/conf/domain_conf.c (virDomainDefParseBootXML): Always clean
up useserial.
Setting a hostname that cannot be resolved is not the best configuration
but since virGetHostname only calls getaddrinfo to get host's canonical
name and we do not fail if the returned canonical name is NULL or
"localhost", there is no reason why we should fail if getaddrinfo itself
fails.
Detected by Coverity. p (the pointer to the string) is always true;
when in reality, we wanted to know whether the integer value of the
just-parsed string is '0' or '1'. Logic bug since commit b1b5b51.
* src/qemu/qemu_monitor_text.c (qemuMonitorTextGetBlockInfo): Set
results to proper value.
