diff options
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index d0df887c3ada..948f8da7b780 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -957,6 +957,29 @@ static void virtqueue_vring_init_split(struct vring_virtqueue_split *vring_split } } +static void virtqueue_reinit_split(struct vring_virtqueue *vq) +{ + int num; + + num = vq->split.vring.num; + + vq->split.vring.avail->flags = 0; + vq->split.vring.avail->idx = 0; + + /* reset avail event */ + vq->split.vring.avail->ring[num] = 0; + + vq->split.vring.used->flags = 0; + vq->split.vring.used->idx = 0; + + /* reset used event */ + *(__virtio16 *)&(vq->split.vring.used->ring[num]) = 0; + + virtqueue_init(vq, num); + + virtqueue_vring_init_split(&vq->split, vq); +} + static void virtqueue_vring_attach_split(struct vring_virtqueue *vq, struct vring_virtqueue_split *vring_split) { |