With the previous refactorings, there's no real benefit from the
qemuBuildCpuFeature helper method. Only one of the callers really
needs the CPU feature name re-writing logic, the others can just
use the right name directly.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
target-i386: Register aliases for feature names with underscores
Libvirt names use underscores so we conditionally tranlate the
names when talking to new QEMU. Since the min QEMU was raised to
version 2.11.0, all QEMU versions we talk to expect hypens, so
the translation can be done unconditionally.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
target-i386: Register aliases for feature names with underscores
Libvirt names use underscores so we conditionally tranlate the
names when talking to new QEMU. Since the min QEMU was raised to
version 2.11.0, all QEMU versions we talk to expect hypens, so
the translation can be done unconditionally.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
ci: switch all non-released distros to be non-gating
The non-released distros have reasonably frequent package installation
failures that can last for days at a time. This makes them unsuitable
for use as gating CI jobs.
This ensures all of the jobs in Debian Sid, Fedora Rawhide, openSUSE
Tumbleweed and FreeBSD Current are marked "allow-failure: true".
This means the jobs still run, but any failure will not be considered
fatal to the pipeline.
Reviewed-by: Ján Tomko <jtomko@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Always fetch the stats for all backing chain members. Callers from
qemu_driver.c already always passed 'true' and the caller from the
migration code won't mind when we fetch all stats.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Tue, 19 Oct 2021 13:12:36 +0000 (15:12 +0200)]
qemuDomainGetStatsBlock: Always fetch stats for the full backing chain
Similarly to the fix to 'qemuDomainBlocksStatsGather' we should be
always fetching the full backing chain so that we can avoid any
automatic filter notes which would prevent us from fetching the stats
for the correct nodename.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Tue, 19 Oct 2021 12:32:09 +0000 (14:32 +0200)]
qemuDomainBlocksStatsGather: Always fetch stats for the full backing chain
In certain cases such as when running a backup blockjob qemu installs a
filter node between the frontend and the top node of the backend of the
disk. The stats gathering code didn't instruct the monitor code to fetch
the stats for all the layers, so since the top layer now doesn't have
stats we were reporting wrong stats such as allocation.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2015281 Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Stefan Berger [Tue, 19 Oct 2021 13:43:20 +0000 (09:43 -0400)]
qemu: tpm: Run swtpm_setup --create-config-files in session mode
Using swtpm v0.7.0 we can run swtpm_setup to create default config files
for swtpm_setup and swtpm-localca in session mode. Now a user can start
a VM with an attached TPM without having to run this program on the
command line before. This program needs to run once.
This patch addresses the issue raised in
https://bugzilla.redhat.com/show_bug.cgi?id=2010649
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Peng Liang [Mon, 18 Oct 2021 09:20:12 +0000 (17:20 +0800)]
qemu: Move pid file of virtiofsd to stateDir
Libvirt will put the pid file of virtiofsd to per-domain directory.
However, the ownership of the per-domain directory is the user to run
the QEMU process and the user has the write permission of the directory.
If VM escape occurs, the attacker can
1. write arbitrary content to the pid file (if running QEMU using root),
then the attacker can kill any process by writing appropriate pid to
the pid file;
2. spoof the pid file (if running QEMU using a regular user), then the
virtiofsd process will never be cleared even if the VM is destroyed.
So, move the pid file of virtiofsd from per-domain directory to
stateDir.
Signed-off-by: Peng Liang <liangpeng10@huawei.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peng Liang [Mon, 18 Oct 2021 09:20:11 +0000 (17:20 +0800)]
qemu: Move pid file of pr-helper to stateDir
Libvirt will put the pid file of pr-helper to per-domain directory.
However, the ownership of the per-domain directory is the user to run
the QEMU process and the user has the write permission of the directory.
If VM escape occurs, the attacker can
1. write arbitrary content to the pid file (if running QEMU using root),
then the attacker can kill any process by writing appropriate pid to
the pid file;
2. spoof the pid file (if running QEMU using a regular user), then the
pr-helper process will never be cleared even if the VM is destroyed.
So, move the pid file of pr-helper from per-domain directory to
stateDir.
Signed-off-by: Peng Liang <liangpeng10@huawei.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Mon, 18 Oct 2021 07:54:08 +0000 (09:54 +0200)]
virNodeDeviceDefParse: Don't call post-parse callbacks with NULL def
When parsing of the node device XML fails we'd still call the post-parse
and validation callbacks which makes no sense. Additionally the
callbacks were expecting a non-NULL pointer which leads to a crash.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2014139 Fixes: d5ae634ba28 Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
Peter Krempa [Thu, 12 Dec 2019 11:13:21 +0000 (12:13 +0100)]
virsh: Add QMP command wrapping for 'qemu-monitor-command'
Issuing simple QMP commands is pain as they need to be wrapped by the
JSON wrapper:
{ "execute": "COMMAND" }
and optionally also:
{ "execute": "COMMAND", "arguments":...}
For simple commands without arguments we can add syntax sugar to virsh
which allows simple usage of QMP and additionally prepares also for
passing through of the 'arguments' section:
Peter Krempa [Mon, 18 Oct 2021 07:29:38 +0000 (09:29 +0200)]
NEWS: Mention conversion of '-device' to JSON starting with QEMU-6.2
Normally this would be considered an internal detail which we don't
document in the news, but in this case I'd like to make people aware of
the change so that they preferrably report them ASAP.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Fri, 15 Oct 2021 10:21:06 +0000 (12:21 +0200)]
testCompareXMLToArgvValidateSchemaCommand: Add validation for '-device'
Now that we use JSON with -device we can validate it at least partially
(since the schema for 'device_add' is for now incomplete) against the
QMP schema.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Fri, 15 Oct 2021 09:42:19 +0000 (11:42 +0200)]
qemu: Use JSON directly for '-device'
Starting with QEMU-6.2 started accepting a JSON object as argument for
'-device' which will also become the only syntax considered stable by
qemu in the future.
Since libvirt was recently converted to generate the properties via JSON
to begin wit we can start using it on the commandline as well, by simply
enabling the QEMU_CAPS_DEVICE_JSON capability, which we do by probing
for the 'json-cli' feature flag of 'device_add'.
Normally a change which changes a commandline output should be happening
only after the impacted real-caps test files are forked in the version
preceding the change, but in this case it's not necessary as the logic
for generating the device properties stays identical and we just change
the output format (avoid conversion). Additionally we still have a lot
of tests validating the conversion to the old commandline options.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Fri, 15 Oct 2021 10:06:14 +0000 (12:06 +0200)]
testQEMUSchemaValidateCommand: Add possibility for partial QMP validation
The QMP schema for 'device_add' is not complete yet. Allow validation of
incomplete schema so that we can enable at least some validation. Once
there's more schema in the future all present members are still
validated.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Mon, 18 Oct 2021 08:52:47 +0000 (10:52 +0200)]
qemu: Decrease scope of variables in qemuConnectGetAllDomainStats()
There are two variables (@vm and @domflags) in qemuConnectGetAllDomainStats()
that are used only within the for() loop but declared for entire function.
Bring them into the loop to make it obvious they are not used outside of it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
Our general pattern is to initialize @ret to -1 and set it to 0
only at the end of a function. Some functions in
objecteventtest.c do not follow this pattern.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
objecteventtest: Drop lifecycleEventCounter_reset()
The sole purpose of the lifecycleEventCounter_reset() function is
to zero out given lifecycleEventCounter struct. Well, we can let
the compiler zero it out when declaring a variable and just
remove the function.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
Jim Fehlig [Wed, 6 Oct 2021 04:23:51 +0000 (22:23 -0600)]
qemu: Do not report eof when processing monitor IO
There have been countless reports from users concerned about the following
error reported by libvirtd when qemu domains are shutdown
internal error: End of file from qemu monitor
While the error is harmless, users often mistaken it for real problem with
their deployments. EOF from the monitor can't be entirely ignored since
other threads may be using the monitor and must be able to detect the EOF
condition.
One potential fix is to delay reporting EOF until the monitor is used
after EOF is detected. This patch adds a 'goteof' member to the
qemuMonitor structure, which is set when EOF is detected on the monitor
socket. If another thread later tries to send data on the monitor, the
EOF error is reported.
Signed-off-by: Jim Fehlig <jfehlig@suse.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Fri, 15 Oct 2021 11:41:12 +0000 (13:41 +0200)]
virnetsocket: Use g_auto* more
There are few functions in virnetsocket.c where an object/memory
is freed by explicit call. Use g_autoptr()/g_autofree/VIR_AUTOCLOSE
to do that automatically.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Fri, 15 Oct 2021 11:39:36 +0000 (13:39 +0200)]
virnetsocket: Don't free virCommand in virNetSocketNewConnectCommand()
The aim of virNetSocketNewConnectCommand() is to execute passed
command and attach socket pair/pipe to it so that client socket
can be opened (this is used for connections with alternative
transports, e.g. ssh). The virCommand is created in a caller and
then passed to virNetSocketNewConnectCommand() where it is freed
using virCommandFree(). This approach is wrong on two levels:
1) The deallocation happens on a different level than allocation,
2) There's a WIN32 stub that just reports an error and doesn't
free the command.
However, with g_autoptr() trickery the command can be freed in
caller.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Hiroki Narukawa [Fri, 15 Oct 2021 10:11:49 +0000 (19:11 +0900)]
qemu_validate: Fix capability check for disk queue_size
Commit ad209e7d adds QEMU_CAPS_VIRTIO_BLK_QUEUE_SIZE capability, but
the following commit 2d6d67e1 missed to use it and uses
QEMU_CAPS_VIRTIO_BLK_NUM_QUEUES instead.
This commit fixes the mistake.
Signed-off-by: Hiroki Narukawa <hnarukaw@yahoo-corp.jp> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The capability reflects whether QEMU is capable of -device
virtio-*,ats=. Since the property was introduced in QEMU commit
v2.9.0-rc0~162^2~32 we can safely assume the property is always
present as the minimal version required is 2.11.0.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Michal Privoznik [Fri, 15 Oct 2021 08:56:34 +0000 (10:56 +0200)]
qemuxml2argvtest: Drop negative virtio-*-ats tests
There are some tests cases in qemuxml2argvtest that aim to check
whether our validator rejects <driver ats=''/> when
QEMU_CAPS_VIRTIO_PCI_ATS capability is not present. Well, such
scenario can't happen really because the capability will always
be present.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
The capability reflects whether QEMU is capable of -device
virtio-*,iommu_platform=. Since the property was introduced in
QEMU commit v2.9.0-rc0~162^2~37 we can safely assume the property
is always present as the minimal version required is 2.11.0.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Michal Privoznik [Fri, 15 Oct 2021 08:55:49 +0000 (10:55 +0200)]
qemuxml2argvtest: Drop negative virtio-*-iommu tests
There are some tests cases in qemuxml2argvtest that aim to check
whether our validator rejects <driver iommu=''/> when
QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM capability is not present.
Well, such scenario can't happen really because the capability
will always be present.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
qemu_migration: set bandwidth in priv during migration
We did not set priv->migMaxBandwidth if '--bandwidth' was
specified as an option in the 'migrate' virsh command. This
caused in printing the wrong value if virsh command
'migrate-getspeed' was called during the migration. This patch
first sets the value to the given bandwidth (if one was
specified) and restores the previous value after the migration.
Peter Krempa [Mon, 11 Oct 2021 17:01:28 +0000 (19:01 +0200)]
qemuBuildFloppyCommandLineControllerOptions: Extract formatting of implicit/explicit fdc
qemuBuildFloppyCommandLineControllerOptions was generating config for
both the implicit and explicit fdc. The explicit FDC is using '-device'
and thus will need to be converted to JSON.
Split up the lookup of the floppy drive configs from the actual command
generation.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peng Liang [Mon, 11 Oct 2021 11:47:20 +0000 (19:47 +0800)]
spec: change the ownership of cache directory
In a50c473ad6c9 ("qemu: move temp file of screenshot and memorypeek to
per-domain dir") and c4f3c955d578 ("qemu: don't change ownership of
cache directory"), I move the temporary files of screenshot and
memorypeek from the cache directory to per-domain directory, and the
only user of the cache directory is the domain capabilities currently.
Since the domain capabilities are used by libvirtd, no need to set the
ownership of the cache directory to qemu_user and qemu_group.
Signed-off-by: Peng Liang <liangpeng10@huawei.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Ján Tomko [Tue, 12 Oct 2021 13:31:22 +0000 (15:31 +0200)]
qemu: correctly pass qemuBuildVHostUserFsDevProps
../../work/libvirt/src/qemu/qemu_hotplug.c: In function ‘qemuDomainAttachFSDevice’:
../../work/libvirt/src/qemu/qemu_hotplug.c:3458:68: error: ordered comparison of pointer with integer zero [-Werror=extra]
3458 | if (qemuBuildVHostUserFsDevProps(fs, vm->def, charAlias, priv) < 0)
| ^
cc1: all warnings being treated as errors
Fixes: b98787303498cfb8426ab27ee62247b164101242 Signed-off-by: Ján Tomko <jtomko@redhat.com>
- New machine types for the 6.2 cycle were added
- MEM_UNPLUG_ERROR event was deprecated and replaced by
DEVICE_UNPLUG_GUEST_ERROR
- Intel SGX related commands and devices added
- 'copy-before-write' blockdev filter was added
- 'memory-backend-epc' was added
- new cpu flags
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Tue, 5 Oct 2021 16:42:39 +0000 (18:42 +0200)]
qemuBuildSoundCommandLine: Generate codecs via JSON
The codec devices have the following properties we control:
cad=<uint32> - (default: 4294967295)
audiodev=<str> - ID of an audiodev to use as a backend
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 5 Oct 2021 14:23:19 +0000 (16:23 +0200)]
qemuBuildVHostUserFsCommandLine: Generate via JSON
The 'vhost-user-fs-pci' has following properties we control:
chardev=<str> - ID of a chardev to use as a backend
queue-size=<uint16> - (default: 128)
tag=<str>
bootindex=<int32>
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 5 Oct 2021 13:39:42 +0000 (15:39 +0200)]
qemuBuildVsockCommandLine: Generate via JSON
Build the properties of 'vhost-vsock' device via JSON. In comparison to
previous similar refactors this also modifies the hotplug code to attach
the vhost fd handle explicitly rather than using
'qemuMonitorAddDeviceWithFd'.
The properties of vhost-vsock have the following types according to
QEMU:
guest-cid=<uint64> - (default: 0)
vhostfd=<str>
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 5 Oct 2021 13:39:42 +0000 (15:39 +0200)]
qemuBuildHostdevCommandLine: Generate via JSON
Build the properties of 'vhost-scsi' device via JSON. In comparison to
previous similar refactors this also modifies the hotplug code to attach
the vhost fd handle explicitly rather than using
'qemuMonitorAddDeviceWithFd'.
The 'vhost-scsi' device doesn't have any special (non-string) properties.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 5 Oct 2021 13:24:58 +0000 (15:24 +0200)]
qemuBuildChrDeviceCommandLine: Generate via JSON
Build commandlines for character devices via JSON.
For devices using 'VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL' address
type 'qemuBuildDeviceAddressProps' will now generate the address. The
only special property is 'nr'. QEMU declares it as:
The test fallout is caused by formatting addresses as decimal numbers
instead of hex as described in the commit which added
'qemuBuildDeviceAddressProps'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 5 Oct 2021 12:27:36 +0000 (14:27 +0200)]
qemuBuildControllersByTypeCommandLine: Generate via JSON
The handlers for PCI, SCSI and USB controllers already use JSON
internally. This patch converts 'virtio-serial', 'ccid' and 'sata' to do
the same and passes out the JSON directly so that it can be used in
monitor code to avoid conversion.
From the controllers converted in this patch only 'virtio-serial' has
special properties. QEMU thinks they have the following types:
Peter Krempa [Tue, 5 Oct 2021 11:02:02 +0000 (13:02 +0200)]
qemuBuildUSBControllerDevStr: Split out validation of USB controller
Move the validation code into a separate function. For now the
validation is still kept in the commandline format step as simply just
moving it to the validator causes failures in the test suite, which will
need to be investigated deeper.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Mon, 4 Oct 2021 21:07:44 +0000 (23:07 +0200)]
qemuBuildControllerPCIDevStr: Format via JSON properties
Internally format the PCI controller properties into JSON, but convert
it back to a string so that we for now change just the SCSI controller.
The change in tests is expected as the 'port' field for various PCI
controllers is expected to be a number and thus can't be represented as
a hexadecimal value in JSON.
Peter Krempa [Mon, 4 Oct 2021 20:27:12 +0000 (22:27 +0200)]
qemuBuildControllerDevStr: Split out formatting of SCSI controller
Move the code into a new function called qemuBuildControllerSCSIDevStr
so that the code is self contained and the original function easier to
follow.
This patch also moves the formatting of the properties relevant only for
the 'virtio-scsi' controller to the specific case so it's more clear
where they belong to.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
properties common for all network interfaces:
netdev=<str> - ID of a netdev to use as a backend
mac=<str> - Ethernet 6-byte MAC Address, example: 52:54:00:12:34:56
bootindex=<int32>
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Mon, 4 Oct 2021 14:54:54 +0000 (16:54 +0200)]
qemuBuildDiskCommandLine: Generate via JSON
The types for the special fields of the 'virtio-blk-pci' according to
QEMU are:
iothread=<link<iothread>>
ioeventfd=<bool> - on/off (default: true)
event_idx=<bool> - on/off (default: true)
scsi=<bool> - on/off (default: false)
num-queues=<uint16> - (default: 65535)
queue-size=<uint16> - (default: 256)
For all disks we also use the following properties (based on 'scsi-hd'):
device_id=<str>
share-rw=<bool> - (default: false)
drive=<str> - Node name or ID of a block device to use as a backend
chardev=<str> - ID of a chardev to use as a backend <- vhost-user-blk-pci
bootindex=<int32>
logical_block_size=<size> - A power of two between 512 B and 2 MiB (default: 0)
physical_block_size=<size> - A power of two between 512 B and 2 MiB (default: 0)
wwn=<uint64> - (default: 0)
rotation_rate=<uint16> - (default: 0)
vendor=<str>
product=<str>
removable=<bool> - on/off (default: false)
write-cache=<OnOffAuto> - on/off/auto (default: "auto")
cyls=<uint32> - (default: 0)
heads=<uint32> - (default: 0)
secs=<uint32> - (default: 0)
bios-chs-trans=<BiosAtaTranslation> - Logical CHS translation algorithm, auto/none/lba/large/rechs (default: "auto") <- ide-hd
serial=<str>
werror=<BlockdevOnError> - Error handling policy, report/ignore/enospc/stop/auto (default: "auto")
rerror=<BlockdevOnError> - Error handling policy, report/ignore/enospc/stop/auto (default: "auto")
The 'wwn' field is changed from a hex string to a number since qemu
actually treats it as a number.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Extract the logic to determine the actual settings into
'qemuBuildDiskGetErrorPolicy' so that it can be reused when we'll
convert the disk -device formatter to JSON.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Mon, 4 Oct 2021 13:34:26 +0000 (15:34 +0200)]
qemu: Always assume presence of QEMU_CAPS_VIRTIO_(BLK|NET)_EVENT_IDX
The 'event_idx' option for virtio devices was introduced by QEMU commit bcbabae8f which is contained in v0.15.0-rc0 and can't be compiled out,
thus we don't need to conditionally enable it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Mon, 4 Oct 2021 13:17:35 +0000 (15:17 +0200)]
qemuBuildIoEventFdStr: Always assume support for QEMU_CAPS_VIRTIO_IOEVENTFD
The support for the 'ioeventfd' knob of virtio devices was introduced by
QEMU commit 25db9ebe15125 contained in v0.14.0-rc0 and it can't be
compiled out. Thus libvirt can assume it's support and remove
conditional code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>