On Thu, Apr 19, 2018 at 07:35:57PM +0200, Paolo Bonzini wrote:
> On 19/04/2018 19:27, Michael S. Tsirkin wrote:
> >
> > That CONFIG_SMP here is clearly wrong but I don't really know what
> > to set it to. Also, we probably should switch virtio_wmb to dma_XX
> > barriers.
> >
> > That's actually easy. Will try to do.
>
> Should it be dma_wmb() before updating the indices, and wmb() before
> writing the "kick virtqueue" register?
>
> Paolo
if anything kick virtqueue should do wmb internally
within virtio pci.
No one uses strong barriers with virtio pci right now
so we don't do it.
--
MST
