On Thu, Jan 08, 2026 at 10:24:19AM -0800, David Matlack wrote: > > > Oh, I was thinking about a compatability only flow only in the type 1 > > > emulation that internally magically converts a VMA to a dmabuf, but I > > > haven't written anything.. It is a bit tricky and the type 1 emulation > > > has not been as popular as I expected?? > > > > In part because of this gap, I'd guess. Thanks, > > Lack of huge mappings in the IOMMU when using VFIO_TYPE1_IOMMU is > another gap I'm aware of. > vfio_dma_mapping_test.vfio_type1_iommu_anonymous_hugetlb_1gb.dma_map_unmap > fails when IOMMUFD_VFIO_CONTAINER is enabled.
What is this? I'm not aware of it.. > Is the plan to address all the gaps so IOMMUFD_VFIO_CONTAINER can be > made the default and the type1 code can be dropped from the upstream > kernel? This was a dream for sure, distros can decide if they want to continue to support both or have an option to do just one. Jason
