qemu/hw/virtio
Stefan Hajnoczi 297a75e6c5 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>
2016-09-09 20:58:34 +03:00
..
Makefile.objs vring: remove 2016-02-25 13:14:19 +02:00
trace-events trace-events: fix first line comment in trace-events 2016-08-12 10:36:01 +01:00
vhost-backend.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
vhost-user.c Revert "vhost-user: Attempt to fix a race with set_mem_table." 2016-08-15 15:12:21 +01:00
vhost.c vhost: do not update last avail idx on get_vring_base() failure 2016-07-29 05:47:17 +03:00
virtio-balloon.c virtio-balloon: discard virtqueue element on reset 2016-09-09 20:58:34 +03:00
virtio-bus.c virtio: Tell the user what went wrong when event_notifier_init failed 2016-09-09 20:58:34 +03:00
virtio-mmio.c virtio-mmio: format transport base address in BusClass.get_dev_path 2016-07-14 16:51:36 +01:00
virtio-pci.c virtio-pci: reduce modern_mem_bar size 2016-09-09 20:58:34 +03:00
virtio-pci.h virtio-pci: reduce modern_mem_bar size 2016-09-09 20:58:34 +03:00
virtio-rng.c virtio-rng: Wrap in vmstate 2016-07-21 20:44:20 +03:00
virtio.c virtio: add virtqueue_rewind() 2016-09-09 20:58:34 +03:00