* Michael S. Tsirkin ([email protected]) wrote:
> On Wed, Jun 28, 2017 at 08:00:43PM +0100, Dr. David Alan Gilbert (git) wrote:
> > From: "Dr. David Alan Gilbert" <[email protected]>
> >
> > When we receive a GET_VRING_BASE message set enable = false
> > to stop any new received packets modifying the ring.
> >
> > Signed-off-by: Dr. David Alan Gilbert <[email protected]>
>
> I think I already reviewed a similar patch.
> Spec says:
> Client must only process each ring when it is started.
>
> IMHO the real fix is to fix client to check the started
> flag before processing the ring.
Done, I added a vu_queue_started to match vu_queue_enabled
and then used it.
Dave
> > ---
> > contrib/libvhost-user/libvhost-user.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/contrib/libvhost-user/libvhost-user.c
> > b/contrib/libvhost-user/libvhost-user.c
> > index ceddeac74f..d37052b7b0 100644
> > --- a/contrib/libvhost-user/libvhost-user.c
> > +++ b/contrib/libvhost-user/libvhost-user.c
> > @@ -652,6 +652,7 @@ vu_get_vring_base_exec(VuDev *dev, VhostUserMsg *vmsg)
> > vmsg->size = sizeof(vmsg->payload.state);
> >
> > dev->vq[index].started = false;
> > + dev->vq[index].enable = false;
> > if (dev->iface->queue_set_started) {
> > dev->iface->queue_set_started(dev, index, false);
> > }
> > --
> > 2.13.0
--
Dr. David Alan Gilbert / [email protected] / Manchester, UK
