[virtio-dev] Re: [PATCH 00/11] Introduce transitional mmr pci device

Michael S. Tsirkin
2023-04-03T14:53:33Z

On Fri, Mar 31, 2023 at 05:43:11PM -0400, Parav Pandit wrote:
> > I can not say I thought about this
> > deeply so maybe there's some problem, or maybe it's a worse approach -
> > could you comment on this? It looks like this could be a smaller change,
> > but maybe it isn't? Did you consider this option?
>
> We can possibly let both the options open for device vendors to implement.
>
> Change wise transport VQ is fairly big addition for both hypervisor driver
> and also for the device.

OTOH it is presumably required for scalability anyway, no?
And presumably it can all be done in firmware ...
Is there actual hardware that can't implement transport vq
but is going to implement the mmr spec?

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MST