diff options
Diffstat (limited to 'hw/virtio/virtio.c')
-rw-r--r-- | hw/virtio/virtio.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 82b6060b2a..03592c542a 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -1528,7 +1528,18 @@ static void virtio_queue_notify_vq(VirtQueue *vq) void virtio_queue_notify(VirtIODevice *vdev, int n) { - virtio_queue_notify_vq(&vdev->vq[n]); + VirtQueue *vq = &vdev->vq[n]; + + if (unlikely(!vq->vring.desc || vdev->broken)) { + return; + } + + trace_virtio_queue_notify(vdev, vq - vdev->vq, vq); + if (vq->handle_aio_output) { + event_notifier_set(&vq->host_notifier); + } else if (vq->handle_output) { + vq->handle_output(vdev, vq); + } } uint16_t virtio_queue_vector(VirtIODevice *vdev, int n) |