IOMMU UAPI is newly introduced to support communications between guest
virtual IOMMU and host IOMMU. There has been lots of discussions on how
it should work with VFIO UAPI and userspace in general.
This document is intended to clarify the UAPI design and usage. The
mechanics of how future extensi
On Wed, 29 Jul 2020 01:18:04 +
"Tian, Kevin" wrote:
> > From: Alex Williamson
> > Sent: Wednesday, July 29, 2020 3:20 AM
> >
> [...]
> > > +
> > > +For example, IOTLB invalidations should always succeed. There is
> > > no +architectural way to report back to the vIOMMU if the UAPI
> > > d
On Thu, 23 Jul 2020 10:25:35 -0700
Jacob Pan wrote:
> IOMMU UAPI is newly introduced to support communications between guest
> virtual IOMMU and host IOMMU. There has been lots of discussions on how
> it should work with VFIO UAPI and userspace in general.
>
> This document is intended to clarif
> From: Alex Williamson
> Sent: Wednesday, July 29, 2020 3:20 AM
>
[...]
> > +
> > +For example, IOTLB invalidations should always succeed. There is no
> > +architectural way to report back to the vIOMMU if the UAPI data is
> > +incompatible. If that happens, in order to guarantee IOMMU iosolatio
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