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| author | Stefan Hajnoczi <stefanha@redhat.com> | 2016-09-07 17:20:48 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-09-09 20:58:34 +0300 |
| commit | 297a75e6c55d91db2704a3d6e4029d99c7df51fd (patch) | |
| tree | 43f752f0502cecc089680c1a08dc6b5cb6c3da9c /hw/pci | |
| parent | 104e70cae78bd4afd95d948c6aff188f10508a9c (diff) | |
| download | qemu-297a75e6c55d91db2704a3d6e4029d99c7df51fd.tar.gz qemu-297a75e6c55d91db2704a3d6e4029d99c7df51fd.tar.bz2 qemu-297a75e6c55d91db2704a3d6e4029d99c7df51fd.zip | |
virtio: add virtqueue_rewind()
virtqueue_discard() requires a VirtQueueElement but virtio-balloon does
not migrate its in-use element. Introduce a new function that is
similar to virtqueue_discard() but doesn't require a VirtQueueElement.
This will allow virtio-balloon to access element again after migration
with the usual proviso that the guest may have modified the vring since
last time.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Roman Kagan <rkagan@virtuozzo.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci')
0 files changed, 0 insertions, 0 deletions