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We already provide ways to detect when a domain has been paused as a
result of I/O error, but there was no way of getting the exact error or
even the device that experienced it. This new API may be used for both.
If we are building not on a WIN32 architecture and without HAVE_CAPNG
virSetCapabilities has unused argument and virClearCapabilities
is unused as well.
In qemuDomainShutdownFlags if we try to use guest agent,
which has error or is not configured, we jump go endjob
label even if we haven't started any job yet. This may
lead to the daemon crash:
1) virsh shutdown --mode agent on a domain without agent configured
2) wait until domain quits
3) virsh edit
Fix my typo at
commit 74e034964c
"disk->rawio == -1" indicates that this value is not
specified. So in case of this, domain must not
be tainted.
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Using new function 'virTypedParameterArrayClear' to simplify block of codes.
* daemon/remote.c, src/remote/remote_driver.c: simplify codes.
Signed-off-by: Alex Jia <ajia@redhat.com>
Commit 8a09ee410 tickles a bug in libxml2-2.7.6 on RHEL 6.2,
where libxml2 treats the pattern [^\n] as excluding literal
backslash and n, instead of the intended newline, thus failing
to validate any domain name containing 'n'.
* docs/schemas/domaincommon.rng: Use literal newline instead.
The original doc entry for rawio didn't mention the values it could
have, the default, or the fact that setting it to "yes" for one disk
effectively set it to "yes" for all disks in the domain.
This patch revises qemuProcessStart() function for qemu
processes to retain CAP_SYS_RAWIO if needed.
And in case of that, add taint flag to domain.
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Shota Hirae <m11g1401@hibikino.ne.jp>
This patch introduces virSetCapabilities() function and implements
virCommandAllowCap() function.
Existing virClearCapabilities() is function to clear all capabilities.
Instead virSetCapabilities() is function to set arbitrary capabilities.
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Shota Hirae <m11g1401@hibikino.ne.jp>
This patch adds a new attribute "rawio" to the "disk" element
of domain XML. Valid values of "rawio" attribute are "yes"
and "no".
rawio='yes' indicates the disk is desirous of CAP_SYS_RAWIO.
If you specify the following XML:
<disk type='block' device='lun' rawio='yes'>
...
</disk>
the domain will be granted CAP_SYS_RAWIO.
(of course, the domain have to be executed with root privilege)
NOTE:
- "rawio" attribute is only valid when device='lun'
- At the moment, any other disks you won't use rawio can use rawio.
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Our existing virDomainBlockResize takes an unsigned long long
argument; if that command is later taught a DELTA and SHRINK flag,
we cannot change its type without breaking API (but at least such
a change would be ABI compatible). Meanwhile, the only time a
negative size makes sense is if both DELTA and SHRINK are used
together, but if we keep the argument unsigned, applications can
pass the positive delta amount by which they would like to shrink
the system, and have the flags imply the negative value. So,
since this API has not yet been released, and in the interest of
consistency with existing API, we swap virStorageVolResize to
always pass an unsigned value.
* include/libvirt/libvirt.h.in (virStorageVolResize): Use unsigned
argument.
* src/libvirt.c (virStorageVolResize): Likewise.
* src/driver.h (virDrvStorageVolUpload): Adjust clients.
* src/remote/remote_protocol.x (remote_storage_vol_resize_args):
Likewise.
* src/remote_protocol-structs: Regenerate.
Suggested by Daniel P. Berrange.
Fix several references to now renamed functions and parameters when the
functions were moved from src/xen/ to src/xenxs/.
Signed-off-by: Philipp Hahn <hahn@univention.de>
This patch addresses: https://bugzilla.redhat.com/show_bug.cgi?id=781562
Along with the "rombar" option that controls whether or not a boot rom
is made visible to the guest, qemu also has a "romfile" option that
allows specifying a binary file to present as the ROM BIOS of any
emulated or passthrough PCI device. This patch adds support for
specifying romfile to both passthrough PCI devices, and emulated
network devices that attach to the guest's PCI bus (just about
everything other than ne2k_isa).
One example of the usefulness of this option is described in the
bugzilla report: 82576 sriov network adapters don't provide a ROM BIOS
for the cards virtual functions (VF), but an image of such a ROM is
available, and with this ROM visible to the guest, it can PXE boot.
In libvirt's xml, the new option is configured like this:
<hostdev>
...
<rom file='/etc/fake/boot.bin'/>
...
</hostdev
(similarly for <interface>).
When support for the rombar option was added, it was only added for
PCI passthrough devices, configured with <hostdev>. The same option is
available for any network device that is attached to the guest's PCI
bus. This patch allows setting rombar for any PCI network device type.
After adding cases to test this to qemuxml2argv-hostdev-pci-rombar.*,
I decided to rename those files (to qemuxml2argv-pci-rom.*) to more
accurately reflect the additional tests, and also noticed that up to
now we've only been performing a domainschematest for that case, so I
added the "pci-rom" test to both qemuxml2argv and qemuxml2xml (and in
the process found some bugs whose fixes I squashed into previous
commits of this series).
Since these two items are now in the virDomainDeviceInfo struct, it
makes sense to parse/format them in the functions written to
parse/format that structure. Not all types of devices allow them, so
two internal flags are added to indicate when it is appropriate to do
so.
I was lucky - only one test case needed to be re-ordered!
To help consolidate the commonality between virDomainHostdevDef and
virDomainNetDef into as few members as possible (and because I
think it makes sense), this patch moves the rombar and bootIndex
members into the "info" member that is common to both (and to all the
other structs that use them).
It's a bit problematic that this gives rombar and bootIndex to many
device types that don't use them, but this is already the case for the
master and mastertype members of virDomainDeviceInfo, and is properly
commented as such in the definition.
Note that this opens the door to supporting rombar for other devices
that are attached to the guest PCI bus - virtio-blk-pci,
virtio-net-pci, various other network adapters - which which have that
capability in qemu, but previously had no support in libvirt.
Unlike other users of virTypedParameter with RPC, this interface
can return zero-filled entries because the interface assumes
2 dimensional array. We compress these entries out from the
server when generating the over-the-wire contents, then reconstitute
them in the client.
Signed-off-by: Eric Blake <eblake@redhat.com>
The bottom of the public header is reserved for deprecated APIs;
it's nicer to arrange things in logical groups.
* include/libvirt/libvirt.h.in (virConnectSetKeepAlive)
(virDomainGetCPUStats): Float earlier in the file.
add new API virDomainGetCPUStats() for getting cpu accounting information
per real cpus which is used by a domain. The API is designed to allow
future extensions for additional statistics.
based on ideas by Lai Jiangshan and Eric Blake.
* src/libvirt_public.syms: add API for LIBVIRT_0.9.10
* src/libvirt.c: define virDomainGetCPUStats()
* include/libvirt/libvirt.h.in: add virDomainGetCPUStats() header
* src/driver.h: add driver API
* python/generator.py: add python API (as not implemented)
Signed-off-by: Eric Blake <eblake@redhat.com>
This API allows a domain to be put into one of S# ACPI states.
Currently, S3 and S4 are supported. These states are shared
with virNodeSuspendForDuration.
However, for now we don't support any duration other than zero.
The same apply for flags.
Add a new function to allow changing of capacity of storage volumes.
Plan out several flags, even if not all of them will be implemented
up front.
Expose the new command via 'virsh vol-resize'.
Signed-off-by: Eric Blake <eblake@redhat.com>
Several not uncommon issues can be diagnosed through pkcheck output, like
lack of/malfunctioning desktop agent, or lack of/malfunctioning polkit
dbus agent.
And hook it up for policykit auth. This allows virt-manager to detect
that the user clicked the policykit 'cancel' button and not throw
an 'authentication failed' error message at the user.
If yajl was not compiled in, we end up freeing an incoming
parameter, which leads to a bogus free later on. Regression
introduced in commit 6e769eb.
* src/qemu/qemu_capabilities.c (qemuCapsParseHelpStr): Avoid alloc
on failure path, which in turn fixes bogus free.
Reported by Cole Robinson.
Fix a build failure:
virt-host-validate.c: In function 'main':
virt-host-validate.c:82:5: error: implicit declaration of function 'setlocale' [-Werror=implicit-function-declaration]
virt-host-validate.c:82:5: error: nested extern declaration of 'setlocale' [-Werror=nested-externs]
virt-host-validate.c:82:20: error: 'LC_ALL' undeclared (first use in this function)
* tools/virt-host-validate.c: Add <locale.h>.
* .gitignore: Ignore built executable.
The virEmitXMLWarning function should always have been in
the xml.[hc] files, and should use virXML as its name
prefix
* src/util/util.c, src/util/util.h: Remove virEmitXMLWarning
* src/util/xml.c, src/util/xml.h: Add virXMLEmitWarning
To assist people in verifying that their host is operating in an
optimal manner, provide a 'virt-host-validate' command. For each
type of hypervisor, it will check any pre-requisites, or other
good recommendations and report what's working & what is not.
eg
# virt-host-validate
QEMU: Checking for device /dev/kvm : FAIL (Check that the 'kvm-intel' or 'kvm-amd' modules are loaded & the BIOS has enabled virtualization)
QEMU: Checking for device /dev/vhost : WARN (Load the 'vhost_net' module to improve performance of virtio networking)
QEMU: Checking for device /dev/net/tun : PASS
LXC: Checking for Linux >= 2.6.26 : PASS
This warns people if they have vmx/svm, but don't have /dev/kvm. It
also warns about missing /dev/vhost net.
QEMU supports a bunch of CPUID features that are tied to the kvm CPUID
nodes rather than the processor's. They are "kvmclock",
"kvm_nopiodelay", "kvm_mmu", "kvm_asyncpf". These are not known to
libvirt and their CPUID leaf might move if (for example) the Hyper-V
extensions are enabled. Hence their handling would anyway require some
special-casing.
However, among these the most useful is kvmclock; an additional
"property" of this feature is that a <timer> element is a better model
than a CPUID feature. Although, creating part of the -cpu command-line
from something other than the <cpu> XML element introduces some
ugliness.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add kvmclock timer to documentation, schema and parsers. Keep the
platform timer first since it is kind of special, and alphabetize
the others when possible (i.e. when it does not change the ABI).
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Avoid creating an empty <cpu> element when the QEMU command-line simply
specifies the default "-cpu qemu32" or "-cpu qemu64".
This requires the previous patch, which lets us represent "-cpu qemu32"
as <os arch='i686'> in the generated XML.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The qemu32 CPU model is chosen based on the <os arch=...> name when
creating the QEMU command line for a 64-bit host. For the opposite
transformation we can test the guest CPU model for the "lm" feature.
If it is absent, def->os.arch needs to be corrected.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
