On Mon, 21 Mar 2016 18:57:18 +0800 Fam Zheng <f...@redhat.com> wrote:
> diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c > index 08275a9..47f8043 100644 > --- a/hw/virtio/virtio.c > +++ b/hw/virtio/virtio.c > @@ -1098,7 +1098,14 @@ 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]; > + EventNotifier *n; > + n = virtio_queue_get_host_notifier(vq); > + if (n) { Isn't that always true, even if the notifier has not been setup? > + event_notifier_set(n); > + } else { > + virtio_queue_notify_vq(vq); > + } > } > > uint16_t virtio_queue_vector(VirtIODevice *vdev, int n) > >