The g_strdup_printf() function can't fail really. There's no need
to check for its return value.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
In the previous commit I accidentally changed the mode of
qemu_driver.c file. Restore the original mode.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In process of iothread hotplug, qemuDomainHotplugAddIOThread() calls
qemuProcessSetupIOThread(). When qemuProcessSetupIOThread() returned
a failure, only the cgroup directory 'iothread' was cleaned up within
the function. Right after that qemuDomainHotplugAddIOThread() would
return failure directly without rolling back the livedef and iothread
process that created previously.
Further, when 'virsh schedinfo domain --live' requires schedinfo of
such machine, the interface will always return a failure print as
follows: 'Failed to create v1 controller cpu for group: No such file
or directory'. The reason is qemuGetIOThreadsBWLive() using member
vm->def->iothreadids[0]->iothread_id to findout the corresponding
cgroup dircetory. In case mentioned previously, iothreadids[0] was not
been cleaned up while whose cgroup directroy has already been removed.
This patch rolls back the livedef and iothread process after
qemuProcessSetupIOThread() returned a failure. Of course we are not
limited to this function, we also perform the same rolling back after
any exception proecss in qemuDomainHotplugAddIOThread().
Signed-off-by: Lei Yang <yanglei209@huawei.com>
Signed-off-by: Wang Xin <wangxinxin.wang@huawei.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Setup of a disk with <transient shareBacking='yes'/> option issues a
reset of qemu. In cases when QEMU didn't yet support the 'set-action'
QMP libvirt would in certain cases setup the commandline without
'-no-shutdown' which caused qemu to exit during startup. Forbid this
specific scenario.
Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Split out the logic which was used to determine whether qemu should
allow the guest OS to reboot for QEMU versions which don't support the
'set-action' QMP command.
Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Currently translated at 47.7% (4943 of 10353 strings)
Translation: libvirt/libvirt
Translate-URL: https://translate.fedoraproject.org/projects/libvirt/libvirt/ko/
Co-authored-by: jason lee <ppark5237@gmail.com>
Signed-off-by: jason lee <ppark5237@gmail.com>
Currently translated at 46.9% (4865 of 10353 strings)
Translation: libvirt/libvirt
Translate-URL: https://translate.fedoraproject.org/projects/libvirt/libvirt/ko/
Co-authored-by: jason lee <ppark5237@gmail.com>
Signed-off-by: jason lee <ppark5237@gmail.com>
Currently translated at 46.1% (4781 of 10353 strings)
Translation: libvirt/libvirt
Translate-URL: https://translate.fedoraproject.org/projects/libvirt/libvirt/ko/
Co-authored-by: jason lee <ppark5237@gmail.com>
Signed-off-by: jason lee <ppark5237@gmail.com>
Updated by "Update PO files to match POT (msgmerge)" hook in Weblate.
Translation: libvirt/libvirt
Translate-URL: https://translate.fedoraproject.org/projects/libvirt/libvirt/
Co-authored-by: Weblate <noreply@weblate.org>
Signed-off-by: Fedora Weblate Translation <i18n@lists.fedoraproject.org>
Currently translated at 22.6% (2344 of 10349 strings)
Translation: libvirt/libvirt
Translate-URL: https://translate.fedoraproject.org/projects/libvirt/libvirt/fi/
Co-authored-by: Jan Kuparinen <copper_fin@hotmail.com>
Signed-off-by: Jan Kuparinen <copper_fin@hotmail.com>
Clang has previously had trouble with G_DEFINE_AUTOPTR_CLEANUP_FUNC
generated code, thinking it was unused. We turn off -Wunused-function
to avoid tripping up on that with CLang.
New Clang has started having trouble with g_autoptr now too. In usage
scenarios where the variable is set, but never again read, it thinks
it is unused not realizing the destructor has useful side effects.
For this we have to skip -Wunused-but-set-variable on CLang.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
As of qemu commit:
commit 497a30dbb065937d67f6c43af6dd78492e1d6f6d
qemu-img: Require -F with -b backing image
creating images with backing images requires specifying the format.
Remove tests which do not pass the backing format on the command
line.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The QEMU driver uses both virtlogd and virtlockd, while the Xen driver
uses virtlockd. The libvirtd.service unit contains deps on the socket
units for these services, but these deps were missed in the modular
daemons. As a result the virtlockd/virtlogd sockets are not started
when the virtqemud/virtxend daemons are started.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
In previous commit I've documented my contributions for upcoming
7.7.0 release. But unfortunately I've placed the lines into wrong
release (7.6.0).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Attaching a newly created vhostuser port to a VM fails due to an
apparmor denial
internal error: unable to execute QEMU command 'chardev-add': Failed
to bind socket to /run/openvswitch/vhu838c4d29-c9: Permission denied
In the case of a net device type VIR_DOMAIN_NET_TYPE_VHOSTUSER, the
underlying chardev is not labeled in qemuDomainAttachNetDevice prior
to calling qemuMonitorAttachCharDev.
A simple fix would be to call qemuSecuritySetChardevLabel using the
embedded virDomainChrSourceDef in the virDomainNetDef vhostuser data,
but this incurs the risk of incorrectly restoring the label. E.g.
consider the DAC driver behavior with a vhostuser net device, which
uses a socket for the chardev backend. The DAC driver uses XATTRS to
store original labelling information, but XATTRS are not compatible
with sockets. Without the original labelling information, the socket
labels will be restored with root ownership, preventing other
less-privileged processes from connecting to the socket.
This patch avoids overloading chardev labelling with vhostuser net
devices by introducing virSecurityManager{Set,Restore}NetdevLabel,
which is currently only implemented for the apparmor driver. The
new APIs are then used to set and restore labels for the vhostuser
net devices.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Now that resource structure can have appid as well we need to adapt code
that creates default resource partition if not provided by user.
Otherwise starting a VM with appid defined would fail with following
error:
error: unsupported configuration: Resource partition '(null)' must start with '/'
Fixes: 38b5f4faab
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Clang on Rawhide started to complain that @tmp variable in
virSCSIDeviceListDel() is set but not used. This is obviously a
false positive because the variable is used to free device stolen
from the list. Anyway, we can do without the variable so in this
specific case let's fix our code to appease Clang.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
In qemumigrationcookiexmltest and qemustatusxml2xmltest there is
@cfg variable that is unused. It's set via virQEMUDriverGetConfig()
but then never used. Drop it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
The virPCIDeviceIsBehindSwitchLackingACS() function checks
whether given PCI device is not behind a switch that lacks ACS.
It does so by starting at given device and traversing up, one
parent at time towards the root. The parent device is obtained
via virPCIDeviceGetParent() which allocates new virPCIDevice
structure. For freeing the structure we use g_autoptr() and a
temporary variable @tmp. However, Clang fails to understand our
clever algorithm and complains that the variable is set but never
used. This is obviously a false positive, but using a small trick
we can shut Clang up.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
When the VM is inactive the 'virStorageSource' struct doesn't have the
necessary data pointing to the actual storage. This is a problem for
inactive snapshot operations on VMs which use disk type='volume'.
Add the translation steps for reversion and deletion of snapshots.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1977155
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/202
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In cases when we are adding a <transient/> disk with sharing backend
(and thus hotplugging it) we need to re-initialize ACPI tables so that
the VM boots from the correct device.
This has a side-effect of emitting the RESET event and forwarding it to
the clients which is not correct.
Fix this by ignoring RESET events during startup of the VM.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When qemu supports 'set-action' command we can update what happens on
reboot. Additionally we can fully relax the checks as we now properly
update the lifecycle actions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
We don't use the value of the flag when the new handling is in place so
we don't have to initialize it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The '-no-shutdown' flag prevents qemu from terminating if a shutdown was
requested. Libvirt will handle the termination of the qemu process
anyways and using this consistently will allow greater flexibility for
the virDomainSetLifecycleAction API as well as will allow using
the 'system-reset' QMP command during startup to reinitiate devices
exported to the firmware.
This efectively partially reverts 0e034efaf9
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Rather than using '-no-reboot' use the QMP command to update the
lifecycle action of 'on_reboot'.
This will be identical to how we set the behaviour during lifetime and
also avoids problems with use of the 'system-reset' QMP command during
bringup of the VM (used to update the firmware table of disks when disks
were hotplugged as part of startup).
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The RESET event is delivered by qemu only when the guest OS is actually
allowed to reboot ('-no-reboot' or equivalent is not used) and due to
the nature of async handling of the events VM is actually already
executing guest code after the reboot, until our code gets to killing
it.
In general it should have been impossible to reach a state where the
reboot action is 'destroy' but we didn't use '-no-reboot' but due to
various bugs it was.
Due to the fact that this was not a desired operation and additionally
guest code already is executing I think the best option is not to kill
the VM any more (possible data loss?) and rely for the proper fix where
we use the new 'set-action' QMP command to enable an equivalent
behaviour to '-no-reboot' during runtime.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Without the ability to tell qemu to change the behaviour on reboot of
the guest it's fundamentally unsafe to change the action as the guest
would be able to execute instructions after the reboot before libvirt
terminates it due to the async nature of QMP events.
Stricten the code for now until we implement support for 'set-action'
QMP command.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
