[Qemu-devel] [PATCH v4 04/11] virtio: initialize wrap counter for packed ring

[wexu]

From: Wei Xu <w...@redhat.com>

Set to 'true' by default due to spec.

Signed-off-by: Wei Xu <w...@redhat.com>
---
 hw/virtio/virtio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 1a98e61..54dc098 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1238,6 +1238,9 @@ void virtio_reset(void *opaque)
         vdev->vq[i].last_avail_idx = 0;
         vdev->vq[i].shadow_avail_idx = 0;
         vdev->vq[i].used_idx = 0;
+        vdev->vq[i].last_avail_wrap_counter = true;
+        vdev->vq[i].avail_wrap_counter = true;
+        vdev->vq[i].used_wrap_counter = true;
         virtio_queue_set_vector(vdev, i, VIRTIO_NO_VECTOR);
         vdev->vq[i].signalled_used = 0;
         vdev->vq[i].signalled_used_valid = false;
-- 
1.8.3.1