Re: [virtio] [OASIS Issue Tracker] Created: (VIRTIO-35) race condition with multi-dword config accesses

On Fri, Oct 11, 2013 at 02:42:40PM +0100, Pawel Moll wrote:
> On Fri, 2013-10-11 at 14:36 +0100, Michael S. Tsirkin wrote:
> > Two questions:
> > - What's wrong with feature bits as a way to
> >   select a different layout? That's what they were
> >   designed for.
> 
> The MMIO transport control register layout is not going to change in
> runtime. It must be either version 1 or version 2.
> 
> > - So what's the plan for transitional devices?
> 
> I am not planning anything special in the MMIO transport.
> 
> Paweł
> 

I see, so MMIO won't allow support transitional devices then.
OK, let's add a paragraph making this explicit then.