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Subject: Re: [PATCH RFC] virtio-spec: flexible configuration layout
From: Pawel Moll <pawel.moll@arm.com>
To: Sasha Levin <levinsasha928@gmail.com>
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Date: Wed, 09 Nov 2011 11:06:33 +0000
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On Wed, 2011-11-09 at 10:55 +0000, Sasha Levin wrote:
> On Wed, 2011-11-09 at 10:47 +0000, Pawel Moll wrote:
> > Yep, it's actually already in 3.2-rc1 (drivers/virtio/virtio_mmio.c) and
> > in the spec (see Appendix X). And actually the control registers layout
> > I used was originally based on the PCI "legacy" headers (slightly
> > simplified), but evolved a bit since. My understanding is that the
> > changes Michael is proposing affect the PCI device interface only so
> > they shouldn't affect "my" interface.
> 
> I didn't know it's in already, might be interesting adding support to it
> to x86 userspace tools.

Do you mean the qemu or the (non-qemu) KVM tools I know nothing
about? ;-)

If qemu, Peter got it already running with virtio_mmio on ARM models
(not upstream yet as far as I know), but I presume the code would we
mostly non-ARM specific.

Cheers!

Pawel