From 791b1daf724ea835a32e90b2b15df1e20dae6f57 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Wed, 21 Sep 2016 16:52:20 +0100 Subject: [PATCH] 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 Reviewed-by: Cornelia Huck Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Cornelia Huck --- hw/virtio/virtio.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) 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 }