diff options
| -rw-r--r-- | hw/virtio/virtio.c | 7 | ||||
| -rw-r--r-- | include/hw/virtio/virtio.h | 2 |
2 files changed, 9 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 6f2b96cc7b..d0bc72e0e4 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -267,6 +267,13 @@ static void virtqueue_unmap_sg(VirtQueue *vq, const VirtQueueElement *elem, 0, elem->out_sg[i].iov_len); } +void virtqueue_discard(VirtQueue *vq, const VirtQueueElement *elem, + unsigned int len) +{ + vq->last_avail_idx--; + virtqueue_unmap_sg(vq, elem, len); +} + void virtqueue_fill(VirtQueue *vq, const VirtQueueElement *elem, unsigned int len, unsigned int idx) { diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index 6201ee8ce0..9d09115fab 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -146,6 +146,8 @@ void virtio_del_queue(VirtIODevice *vdev, int n); void virtqueue_push(VirtQueue *vq, const VirtQueueElement *elem, unsigned int len); void virtqueue_flush(VirtQueue *vq, unsigned int count); +void virtqueue_discard(VirtQueue *vq, const VirtQueueElement *elem, + unsigned int len); void virtqueue_fill(VirtQueue *vq, const VirtQueueElement *elem, unsigned int len, unsigned int idx); |