From: Stefan Hajnoczi <stefa...@redhat.com>
Send a subsection if the vdev->broken flag is set. This allows live
migration of broken virtio devices.
The subsection is only sent if vdev->broken has been set. In most cases
the flag will be clear and no subsection will be sent.
Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.h...@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.h...@de.ibm.com>
---
hw/virtio/virtio.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 1671ea8..bac6b51 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1343,6 +1343,13 @@ static bool virtio_extra_state_needed(void *opaque)
k->has_extra_state(qbus->parent);
}
+static bool virtio_broken_needed(void *opaque)
+{
+ VirtIODevice *vdev = opaque;
+
+ return vdev->broken;
+}
+
static const VMStateDescription vmstate_virtqueue = {
.name = "virtqueue_state",
.version_id = 1,
@@ -1457,6 +1464,17 @@ static const VMStateDescription
vmstate_virtio_64bit_features = {
}
};
+static const VMStateDescription vmstate_virtio_broken = {
+ .name = "virtio/broken",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = &virtio_broken_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_BOOL(broken, VirtIODevice),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static const VMStateDescription vmstate_virtio = {
.name = "virtio",
.version_id = 1,
@@ -1470,6 +1488,7 @@ static const VMStateDescription vmstate_virtio = {
&vmstate_virtio_64bit_features,
&vmstate_virtio_virtqueues,
&vmstate_virtio_ringsize,
+ &vmstate_virtio_broken,
&vmstate_virtio_extra_state,
NULL
}
--
MST
