| commit | 74aae7b22b8a67cf31937b2f4bdefe2881e799e9 | |
| author | Jason Wang <jasowang@redhat.com> | |
| Wed, 5 Aug 2015 09:50:07 +0000 (5 17:50 +0800) | ||
| committer | Michael S. Tsirkin <mst@redhat.com> | |
| Wed, 5 Aug 2015 13:56:34 +0000 (5 16:56 +0300) | ||
| tree | da5290e56a2434aca7abdd3b30f21536dba2a6dd | treesnapshot (tar.gz zip) |
| parent | 2be4f242b50a84bf360df02480b173bfed161107 | commitdiff |
virtio: fix 1.0 virtqueue migration
1.0 does not requires physically-contiguous pages layout for a
virtqueue. So we could not infer avail and used from desc. This means
we need to migrate vring.avail and vring.used when host support virtio
1.0. This fixes malfunction of virtio 1.0 device after migration.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
1.0 does not requires physically-contiguous pages layout for a
virtqueue. So we could not infer avail and used from desc. This means
we need to migrate vring.avail and vring.used when host support virtio
1.0. This fixes malfunction of virtio 1.0 device after migration.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| hw/virtio/virtio.c | diffblobblamehistory | |
| include/hw/virtio/virtio.h | diffblobblamehistory |