> From: Jason Gunthorpe <jgg@xxxxxxxxxx> > Sent: Friday, August 14, 2020 9:24 PM > > The same basic argument goes for all the points - the issue is really > the only uAPI we have for this stuff is under VFIO, and the better > solution is to disagregate that uAPI, not to try and make everything > pretend to be a VFIO device. > Nobody is proposing to make everything VFIO. there must be some criteria which can be brainstormed in LPC. But the opposite also holds - the fact that we should not make everything VFIO doesn't imply prohibition on anyone from using it. There is a clear difference between passthrough and userspace DMA requirements in idxd context, and we see good reasons to use VFIO for our passthrough requirements. Thanks Kevin
