qemu_capabilities: Add QEMU_CAPS_QUERY_CURRENT_MACHINE

QEMU commit 46ea94ca9cf ("qmp: query-current-machine with
wakeup-suspend-support") added a new QMP command called
'query-current-machine' that retrieves guest parameters that
can vary in the same machine model (e.g. ACPI support for x86 VMs
depends on the '--no-acpi' option). Currently, this API has a single
flag, 'wakeup-suspend-support', that indicates whether the guest has
the capability of waking up from suspended state.

Introduce a libvirt capability that reflects whether qemu has the
monitor command.
Signed-off-by: NDaniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

src/qemu/qemu_capabilities.c

@@ -524,6 +524,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
               "scsi-disk.device_id",
               "virtio-pci-non-transitional",
               "overcommit",
+              "query-current-machine",
     );
 
 
@@ -969,6 +970,7 @@ struct virQEMUCapsStringFlags virQEMUCapsCommands[] = {
     { "query-cpus-fast", QEMU_CAPS_QUERY_CPUS_FAST },
     { "qom-list-properties", QEMU_CAPS_QOM_LIST_PROPERTIES },
     { "blockdev-del", QEMU_CAPS_BLOCKDEV_DEL },
+    { "query-current-machine", QEMU_CAPS_QUERY_CURRENT_MACHINE },
 };
 
 struct virQEMUCapsStringFlags virQEMUCapsMigration[] = {

src/qemu/qemu_capabilities.h

@@ -506,6 +506,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
     QEMU_CAPS_SCSI_DISK_DEVICE_ID, /* 'device_id' property of scsi disk */
     QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL, /* virtio *-pci-{non-}transitional devices */
     QEMU_CAPS_OVERCOMMIT, /* -overcommit */
+    QEMU_CAPS_QUERY_CURRENT_MACHINE, /* query-current-machine command */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;

tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml

@@ -163,6 +163,7 @@
   <flag name='scsi-disk.device_id'/>
   <flag name='virtio-pci-non-transitional'/>
   <flag name='overcommit'/>
+  <flag name='query-current-machine'/>
   <version>3001091</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>0</microcodeVersion>

tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml

@@ -163,6 +163,7 @@
   <flag name='scsi-disk.device_id'/>
   <flag name='virtio-pci-non-transitional'/>
   <flag name='overcommit'/>
+  <flag name='query-current-machine'/>
   <version>3001091</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>0</microcodeVersion>

tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml

@@ -201,6 +201,7 @@
   <flag name='scsi-disk.device_id'/>
   <flag name='virtio-pci-non-transitional'/>
   <flag name='overcommit'/>
+  <flag name='query-current-machine'/>
   <version>3001050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100758</microcodeVersion>