Messages in this thread | | | Date | Fri, 13 Oct 2023 11:05:38 -0300 | From | Jason Gunthorpe <> | Subject | Re: [PATCH v4 05/17] iommufd: Separate kernel-managed HWPT alloc/destroy/abort functions |
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On Fri, Oct 13, 2023 at 07:13:34AM +0000, Tian, Kevin wrote: > > From: Jason Gunthorpe <jgg@nvidia.com> > > Sent: Friday, October 13, 2023 3:10 AM > > > > Also, we probably should feed enforce_cache_coherency through the > > alloc_hwpt uapi and not try to autodetect it.. > > > > In the past we had a long discussion about this with the conclusion > that user opt is the ideal model but it's fine to stay with autodetect > and existing vfio/kvm contract for coherency detection until we > see a real demand for user opt. > > Is there anything new which changes your mind to have user opt now?
I guess, I was just looking at the complexity it brings to keep that working.
Jason
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