> From: Alex Williamson <alex.williamson@xxxxxxxxxx> > Sent: Tuesday, June 29, 2021 7:09 AM > > > > Ideally vfio would also at least be able to register a type1 IOMMU > > > backend through the existing uapi, backed by this iommu code, ie. we'd > > > create a new "iommufd" (but without the user visible fd), > > > > It would be amazing to be able to achieve this, at least for me there > > are too many details be able to tell what that would look like > > exactly. I suggested once that putting the container ioctl interface > > in the drivers/iommu code may allow for this without too much trouble.. > > If we can't achieve this, then type1 legacy code is going to need to > live through an extended deprecation period. I'm hoping that between > type1 and a native interface we'll have two paths into iommufd to vet > the design. Thanks, > I prefer to keeping type1 legacy code for some time. After the new device-centric flow works, we can then study how to make type1 as a shim layer atop. Thanks Kevin
