Re: [GIT PULL] AlacrityVM guest drivers for 2.6.33

Michael S. Tsirkin
2009-12-24T10:01:59Z

On Wed, Dec 23, 2009 at 11:28:08AM -0800, Ira W. Snyder wrote:
> On Wed, Dec 23, 2009 at 12:34:44PM -0500, Gregory Haskins wrote:
> > On 12/23/09 1:15 AM, Kyle Moffett wrote:
> > > On Tue, Dec 22, 2009 at 12:36, Gregory Haskins
> > > <gregory.haskins@gmail.com> wrote:
> > >> On 12/22/09 2:57 AM, Ingo Molnar wrote:
> > >>> * Gregory Haskins <gregory.haskins@gmail.com> wrote:
> > >>>> Actually, these patches have nothing to do with the KVM folks. [...]
> > >>>
> > >>> That claim is curious to me - the AlacrityVM host
> > >>
> > >> It's quite simple, really. These drivers support accessing vbus, and
> > >> vbus is hypervisor agnostic. In fact, vbus isn't necessarily even
> > >> hypervisor related. It may be used anywhere where a Linux kernel is the
> > >> "io backend", which includes hypervisors like AlacrityVM, but also
> > >> userspace apps, and interconnected physical systems as well.

So focus on interconnecting physical systems I think would be one way
for vbus to stop conflicting with KVM. If drivers for such systems
appear I expect that relevant (hypervisor-agnostic) vbus bits would be
very uncontroversial.

This would not be the first technology to make the jump from attempting
to be a PCI replacement to being an interconnect btw, I think infiniband
did this as well.

--
MST