qemu: check that qemu is vhost-user-vga capable

To support virtio VGA with vhost-user, vhost-user-vga device is necessary.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index ad4db7e8811838d703f7d09ab3044d15a5100ddc..dd2e7f351808aed5e2b678ae6f4e735920cdbd7d 100644 (file)
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -12777,9 +12777,14 @@ bool
 qemuDomainSupportsVideoVga(virDomainVideoDefPtr video,
                            virQEMUCapsPtr qemuCaps)
 {
-    if (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO &&
-        !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_VGA))
-        return false;
+    if (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO) {
+        if (video->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER) {
+            if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VHOST_USER_VGA))
+                return false;
+        } else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_VGA)) {
+            return false;
+        }
+    }
 
     return true;
 }