On 02/23/17 09:51, Paolo Bonzini wrote: > If the vring has not been set up, there is nothing in the virtqueue. > virtio_queue_host_notifier_aio_poll calls virtio_queue_empty even in > this case; we have to filter it out just like virtio_queue_notify_aio_vq. > > Reported-by: Gerd Hoffmann <[email protected]> > Tested-by: Alex Williamson <[email protected]> > Signed-off-by: Paolo Bonzini <[email protected]> > --- > hw/virtio/virtio.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c > index 23483c7..e487e36 100644 > --- a/hw/virtio/virtio.c > +++ b/hw/virtio/virtio.c > @@ -2291,7 +2291,7 @@ static bool virtio_queue_host_notifier_aio_poll(void > *opaque) > VirtQueue *vq = container_of(n, VirtQueue, host_notifier); > bool progress; > > - if (virtio_queue_empty(vq)) { > + if (!vq->vring.desc || virtio_queue_empty(vq)) { > return false; > } > >
Tested-by: Laszlo Ersek <[email protected]> Thanks! Laszlo
