12806 Commits

Author SHA1 Message Date
Peter Krempa
b0e4ad5263 qemu: monitor: Store whether 'query-named-block-nodes' supports 'flat' parameter
Rather than having callers always pass this flag store it in the
qemuMonitor object. Following patches will convert the code to use this
internal flag.

In the future this will also simplify removal when all supported qemu
versions will support the new mode.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-09 14:08:31 +01:00
Peter Krempa
3fe74ebd90 qemu: qemuBlockGetNamedNodeData: Remove pointless error path
We don't need automatic freeing for 'blockNamedNodeData' and we can
directly return it rather than checking it for NULL-ness first.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-09 14:08:31 +01:00
Peter Krempa
9c26c1bfd4 conf: Introduce support for 'hv-avic' Hyper-V enlightenment
qemu-6.2 introduced support for the hv-avic enlightenment which allows
to use Hyper-V SynIC with hardware APICv/AVIC enabled.

Implement the libvirt support for it.

Closes: https://gitlab.com/libvirt/libvirt/-/issues/402
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-09 14:08:31 +01:00
Michal Privoznik
f68a074203 qemu: Add missing 'break' statement in couple of switch()-es
In recent commits migration of TPM on shared storage was
introduced. However, I've only complied it with gcc and thus did
not notice that clang build fails due to missing break; at the
end of some (empty) cases in switch() statements.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2022-11-09 13:52:40 +01:00
Stefan Berger
3c9968ec9a qemu: tpm: Never remove state on outgoing migration and shared storage
Never remove the TPM state on outgoing migration if the storage setup
has shared storage for the TPM state files. Also, do not do the security
cleanup on outgoing migration if shared storage is detected.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2022-11-09 12:26:42 +01:00
Stefan Berger
2e669ec789 qemu: tpm: Avoid security labels on incoming migration with shared storage
When using shared storage there is no need to apply security labels on the
storage since the files have to have been labeled already on the source
side and we must assume that the source and destination side have been
setup to use the same uid and gid for running swtpm as well as share the
same security labels. Whether the security labels can be used at all
depends on the shared storage and whether and how it supports them.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2022-11-09 12:26:38 +01:00
Stefan Berger
188dfeb398 qemu: tpm: Pass --migration option to swtpm if supported and needed
Pass the --migration option to swtpm if swptm supports it (starting
with v0.8) and if the TPM's state is written on shared storage. If this
is the case apply the 'release-lock-outgoing' parameter with this
option and apply the 'incoming' parameter for incoming migration so that
swtpm releases the file lock on the source side when the state is migrated
and locks the file on the destination side when the state is received.

If a started swtpm instance is running with the necessary options of
migrating with share storage then remember this with a flag in the
virDomainTPMPrivateDef.

Report an error if swtpm does not support the --migration option and an
incoming migration across shared storage is requested.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2022-11-09 12:26:35 +01:00
Stefan Berger
5597476e40 qemu: tpm: Add support for storing private TPM-related data
Add support for storing private TPM-related data. The first private data
will be related to the capability of the started swtpm indicating whether
it is capable of migration with a shared storage setup since that requires
support for certain command line flags that were only becoming available
in v0.8.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2022-11-09 12:26:32 +01:00
Stefan Berger
68103e9daf qemu: tpm: Conditionally create storage on incoming migration
Do not create storage if the TPM state files are on shared storage and
there's an incoming migration since in this case the storage directory
must already exist. Also do not run swtpm_setup in this case.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2022-11-09 12:26:27 +01:00
Stefan Berger
384138d790 qemu: tpm: Introduce qemuTPMHasSharedStorage()
New qemuTPMHasSharedStorage() function is introduced which
returns whether the swtpm state directory is on a shared
filesystem (e.g. NFS).

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2022-11-09 12:26:24 +01:00
Michal Privoznik
56de80cb79 qemu: Retire QEMU_CAPS_DISK_WRITE_CACHE
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
d974ecbab5 qemu_capabilities: Stop detecting QEMU_CAPS_DISK_WRITE_CACHE
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
f28807a1e0 qemu: Assume QEMU_CAPS_DISK_WRITE_CACHE
Introduced in QEMU's commit of v2.7.0-rc0~32^2~5 the .write-cache
attribute of virtio-blk dvice is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.

The change in some .args is justified, because the qemuxml2argvdatatest
runs these test caseses with very minimalistic set of capabilities,
that's nowhere near real life scenario.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
e2927db185 qemu: Retire QEMU_CAPS_DISK_SHARE_RW
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
589e9a769b qemu_capabilities: Stop detecting QEMU_CAPS_DISK_SHARE_RW
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
6c4148f693 qemu: Assume QEMU_CAPS_DISK_SHARE_RW
Introduced in QEMU's commit of v2.9.0-rc0~48^2~25 the .share-rw
attribute of virtio-blk device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.

The change in controller-order.args is justified, because the
qemuxml2argvdatatest runs the test case with very minimalistic
set of capabilities, that's nowhere near real life scenario.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
d27fb06ec4 qemu: Retire QEMU_CAPS_VIRTIO_BLK_NUM_QUEUES
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
7b1d8933de qemu_capabilities: Stop detecting QEMU_CAPS_VIRTIO_BLK_QUEUE_SIZE
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
f33d9ce977 qemu: Assume QEMU_CAPS_VIRTIO_BLK_NUM_QUEUES
Introduced in QEMU's commit of v2.7.0-rc0~83^2 the .num-queues
attribute of virtio-blk device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
c568b557d6 qemu: Retire QEMU_CAPS_BLOCKIO
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
0244d42b82 qemu_capabilities: Stop detecting QEMU_CAPS_BLOCKIO
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
718721f0f9 qemu: Assume QEMU_CAPS_BLOCKIO
Introduced in QEMU's commit of v0.13.0-rc0~1072 the
.logical_block_size attribute of virtio-blk device is always
available for all QEMU versions we support (4.2.0, currently).
Therefore, we can assume the capability is always set and thus
doesn't need to be checked for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
c40ea3eaed qemu: Retire QEMU_CAPS_VIRTIO_NET_FAILOVER
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
7c20bca6ae qemu_capabilities: Stop detecting QEMU_CAPS_VIRTIO_NET_FAILOVER
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
69eeea5d92 qemu: Assume QEMU_CAPS_VIRTIO_NET_FAILOVER
Introduced in QEMU's commit of v4.2.0-rc0~23^2~4 the .failover
attribute of virtio-net device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
0bf7e0cf63 qemu: Retire QEMU_CAPS_VIRTIO_NET_HOST_MTU
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
2390c076ee qemu_capabilities: Stop detecting QEMU_CAPS_VIRTIO_NET_HOST_MTU
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
2eab78d5f5 qemu: Assume QEMU_CAPS_VIRTIO_NET_HOST_MTU
Introduced in QEMU's commit of v2.9.0-rc0~162^2~10 the .host_mtu
attribute of virtio-net device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
c0896a2e80 qemu: Retire QEMU_CAPS_VIRTIO_NET_TX_QUEUE_SIZE
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
fec918000d qemu_capabilities: Stop detecting QEMU_CAPS_VIRTIO_NET_TX_QUEUE_SIZE
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
ed8696549d qemu: Assume QEMU_CAPS_VIRTIO_NET_TX_QUEUE_SIZE
Introduced in QEMU's commit of v2.10.0-rc0~95^2~20 the
.tx_queue_size attribute of virtio-net device is always available
for all QEMU versions we support (4.2.0, currently). Therefore,
we can assume the capability is always set and thus doesn't need
to be checked for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
1afab9d245 qemu: Retire QEMU_CAPS_VIRTIO_NET_RX_QUEUE_SIZE
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
5bb7fe5437 qemu_capabilities: Stop detecting QEMU_CAPS_VIRTIO_NET_RX_QUEUE_SIZE
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
7fd8465187 qemu: Assume QEMU_CAPS_VIRTIO_NET_RX_QUEUE_SIZE
Introduced in QEMU's commit of v2.8.0-rc0~116^2~26 the
.rx_queue_size attribute of virtio-net device is always available
for all QEMU versions we support (4.2.0, currently). Therefore,
we can assume the capability is always set and thus doesn't need
to be checked for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
4a7ec2b8d4 qemu: Retire QEMU_CAPS_QUERY_DISPLAY_OPTIONS
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
f02190dc54 qemu_capabilities: Stop detecting QEMU_CAPS_QUERY_DISPLAY_OPTIONS
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
b9f70ae05b qemu: Assume QEMU_CAPS_QUERY_DISPLAY_OPTIONS
Introduced in QEMU's commit of v3.1.0-rc3~8^2 the
query-display-options command is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
6e3e008f6e qemu: Retire QEMU_CAPS_BITMAP_MERGE
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
7a69622cf3 qemu_capabilities: Stop detecting QEMU_CAPS_BITMAP_MERGE
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
e42461231f qemu: Retire QEMU_CAPS_QUERY_CURRENT_MACHINE
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
55ff57dbf2 qemu_capabilities: Stop detecting QEMU_CAPS_QUERY_CURRENT_MACHINE
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
80a5dbb478 qemu: Assume QEMU_CAPS_QUERY_CURRENT_MACHINE
Introduced in QEMU's commit of v4.0.0-rc0~202^2~3 the
query-current-machine command is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
cf54743277 qemu: Retire QEMU_CAPS_QOM_LIST_PROPERTIES
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
b15e602278 qemu_capabilities: Stop detecting QEMU_CAPS_QOM_LIST_PROPERTIES
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
3c2697b54c qemu: Assume QEMU_CAPS_QOM_LIST_PROPERTIES
Introduced in QEMU's commit of v2.12.0-rc0~48^2~25 the
qom-list-properties command is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
15919f5558 qemu: Retire QEMU_CAPS_DUMP_COMPLETED
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
45d0015d86 qemu_capabilities: Stop detecting QEMU_CAPS_DUMP_COMPLETED
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
ac02c09dd8 qemu: Assume QEMU_CAPS_DUMP_COMPLETED
Introduced in QEMU's commit of v2.6.0-rc0~74^2~6 the
DUMP_COMPLETED event is always available for all QEMU versions we
support (4.2.0, currently). Therefore, we can assume the
capability is always set and thus doesn't need to be checked for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
5724035ed5 qemu: Retire QEMU_CAPS_VSERPORT_CHANGE
Now that nothing uses this capability, it can be retired.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00
Michal Privoznik
bf140a6edd qemu_capabilities: Stop detecting QEMU_CAPS_VSERPORT_CHANGE
All supported QEMUs have this capability. Stop detecting it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-11-08 12:10:50 +01:00