qemu: add -display dbus capability check

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

src/qemu/qemu_capabilities.c

@@ -675,6 +675,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
 
               /* 430 */
               "chardev.qemu-vdagent", /* QEMU_CAPS_CHARDEV_QEMU_VDAGENT */
+              "display-dbus", /* QEMU_CAPS_DISPLAY_DBUS */
     );
 
 
@@ -1625,6 +1626,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsQMPSchemaQueries[] = {
     { "object-add/arg-type/+sev-guest/kernel-hashes", QEMU_CAPS_SEV_GUEST_KERNEL_HASHES },
     { "calc-dirty-rate/arg-type/mode", QEMU_CAPS_DIRTYRATE_MODE },
     { "chardev-add/arg-type/backend/+qemu-vdagent", QEMU_CAPS_CHARDEV_QEMU_VDAGENT },
+    { "query-display-options/ret-type/+dbus", QEMU_CAPS_DISPLAY_DBUS },
 };
 
 typedef struct _virQEMUCapsObjectTypeProps virQEMUCapsObjectTypeProps;

src/qemu/qemu_capabilities.h

@@ -650,6 +650,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
 
     /* 430 */
     QEMU_CAPS_CHARDEV_QEMU_VDAGENT, /* -chardev qemu-vdagent */
+    QEMU_CAPS_DISPLAY_DBUS, /* -display dbus */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;

tests/qemucapabilitiesdata/caps_7.0.0.x86_64.xml

@@ -242,6 +242,7 @@
   <flag name='virtio-iommu.boot-bypass'/>
   <flag name='virtio-net.rss'/>
   <flag name='chardev.qemu-vdagent'/>
+  <flag name='display-dbus'/>
   <version>7000000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100243</microcodeVersion>

tests/qemucapabilitiesdata/caps_7.1.0.x86_64.xml

@@ -242,6 +242,7 @@
   <flag name='virtio-iommu.boot-bypass'/>
   <flag name='virtio-net.rss'/>
   <flag name='chardev.qemu-vdagent'/>
+  <flag name='display-dbus'/>
   <version>7000050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100244</microcodeVersion>