diff options
| -rw-r--r-- | hw/virtio/virtio.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index d62509d6cf..cdafcec9be 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -2156,7 +2156,9 @@ void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n, uint16_t idx) void virtio_queue_update_used_idx(VirtIODevice *vdev, int n) { - vdev->vq[n].used_idx = vring_used_idx(&vdev->vq[n]); + if (vdev->vq[n].vring.desc) { + vdev->vq[n].used_idx = vring_used_idx(&vdev->vq[n]); + } } void virtio_queue_invalidate_signalled_used(VirtIODevice *vdev, int n) |