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Date:   Tue, 3 Nov 2020 13:48:51 -0400
From:   Jason Gunthorpe <jgg@nvidia.com>
To:     "joro@8bytes.org" <joro@8bytes.org>
CC:     "Tian, Kevin" <kevin.tian@intel.com>,
        Jason Wang <jasowang@redhat.com>,
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Subject: Re: (proposal) RE: [PATCH v7 00/16] vfio: expose virtual Shared
 Virtual Addressing to VMs
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On Tue, Nov 03, 2020 at 05:55:40PM +0100, joro@8bytes.org wrote:
> On Tue, Nov 03, 2020 at 11:22:23AM -0400, Jason Gunthorpe wrote:
> > This whole thread was brought up by IDXD which has a SVA driver and
> > now wants to add a vfio-mdev driver too. SVA devices that want to be
> > plugged into VMs are going to be common - this architecture that a SVA
> > driver cannot cover the kvm case seems problematic.
> 
> Isn't that the same pattern as having separate drivers for VFs and the
> parent device in SR-IOV?

I think the same PCI driver with a small flag to support the PF or
VF is not the same as two completely different drivers in different
subsystems

Jason