On Wed, Nov 30, 2022 at 01:34:55PM -0700, Alex Williamson wrote: > On Tue, 29 Nov 2022 16:31:45 -0400 > Jason Gunthorpe <jgg@xxxxxxxxxx> wrote: > > > [ As with the iommufd series, this will be the last posting unless > > something major happens, futher fixes will be in new commits ] > > > > This series provides an alternative container layer for VFIO implemented > > using iommufd. This is optional, if CONFIG_IOMMUFD is not set then it will > > not be compiled in. > > > > At this point iommufd can be injected by passing in a iommfd FD to > > VFIO_GROUP_SET_CONTAINER which will use the VFIO compat layer in iommufd > > to obtain the compat IOAS and then connect up all the VFIO drivers as > > appropriate. > > > > This is temporary stopping point, a following series will provide a way to > > directly open a VFIO device FD and directly connect it to IOMMUFD using > > native ioctls that can expose the IOMMUFD features like hwpt, future > > vPASID and dynamic attachment. > > > > This series, in compat mode, has passed all the qemu tests we have > > available, including the test suites for the Intel GVT mdev. Aside from > > the temporary limitation with P2P memory this is belived to be fully > > compatible with VFIO. > > > > This is on github: https://github.com/jgunthorpe/linux/commits/vfio_iommufd > > > > It requires the iommufd series: > > > > https://lore.kernel.org/r/0-v6-a196d26f289e+11787-iommufd_jgg@xxxxxxxxxx > > > > v4: > > - Change the assertion in vfio_group_has_iommu to be clearer > > - Use vfio_group_has_iommu() > > - Remove allow_unsafe_interrupts stuff > > - Update IOMMUFD_VFIO_CONTAINER kconfig description > > - Use DEBUG_KERNEL insted of RUNTIME_TESTING_MENU for IOMMUFD_TEST kconfig > > This looks ok to me and passes all my testing. What's your merge plan? > I'm guessing you'd like to send it along with the main IOMMUFD pull > request, there are currently no conflicts with my next branch, > therefore: Yes, it has to go with the iommufd branch, it won't apply otherwise. Here is everything ready-to-go: https://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd.git/log/?h=for-next It has been in linux-next for about 4 weeks now Thanks, Jason
