diff options
| author | Stefan Hajnoczi | 2016-09-21 17:52:20 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2016-09-23 18:03:55 +0200 |
| commit | 791b1daf724ea835a32e90b2b15df1e20dae6f57 (patch) | |
| tree | 265a2cdd9390d1c0045c13637a5100dc547c6e3e /hw | |
| parent | virtio: stop virtqueue processing if device is broken (diff) | |
| download | qemu-791b1daf724ea835a32e90b2b15df1e20dae6f57.tar.gz qemu-791b1daf724ea835a32e90b2b15df1e20dae6f57.tar.xz qemu-791b1daf724ea835a32e90b2b15df1e20dae6f57.zip | |
virtio: migrate vdev->broken flag
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 <stefanha@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/virtio/virtio.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 1671ea8451..bac6b51f7c 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 } |