Re: (proposal) RE: [PATCH v7 00/16] vfio: expose virtual Shared Virtual Addressing to VMs

Raj, Ashok
2020-10-20T20:27:19Z

On Tue, Oct 20, 2020 at 05:14:03PM -0300, Jason Gunthorpe wrote:
> On Tue, Oct 20, 2020 at 01:08:44PM -0700, Raj, Ashok wrote:
> > On Tue, Oct 20, 2020 at 04:55:57PM -0300, Jason Gunthorpe wrote:
> > > On Tue, Oct 20, 2020 at 12:51:46PM -0700, Raj, Ashok wrote:
> > > > I think we agreed (or agree to disagree and commit) for device types that
> > > > we have for SIOV, VFIO based approach works well without having to re-invent
> > > > another way to do the same things. Not looking for a shortcut by any means,
> > > > but we need to plan around existing hardware though. Looks like vDPA took
> > > > some shortcuts then to not abstract iommu uAPI instead :-)? When all
> > > > necessary hardware was available.. This would be a solved puzzle.
> > >
> > > I think it is the opposite, vIOMMU and related has outgrown VFIO as
> > > the "home" and needs to stand alone.
> > >
> > > Apparently the HW that will need PASID for vDPA is Intel HW, so if
> >
> > So just to make this clear, I did check internally if there are any plans
> > for vDPA + SVM. There are none at the moment.
>
> Not SVM, SIOV.

... And that included.. I should have said vDPA + PASID, No current plans.
I have no idea who set expectations with you. Can you please put me in touch
with that person, privately is fine.