Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd

Pull iommufd updates from Jason Gunthorpe:
 "One small feature this cycle, the noiommu mode is useful in
  single-purpose VMs running something like DPDK. It avoids the double
  translation overhead and it seems to be commonly used with some hacks.

  Summary:

   - Formal API for "no iommu" mode in VFIO. iommufd now works in this
     environment and provides page pinning and phyiscal address services
     to userspace. This avoids nasty fragile tricks with mprotect and
     pgmap

   - Fix sykzaller crash racing change_process with map_pages

   - Various skyzkaller/AI fixes for the selftests"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommufd: Fix UAF in selftest IOPF reporting
  iommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when racing with iopt_map_file_pages
  Documentation: Update VFIO NOIOMMU mode
  vfio: Enable cdev noiommu mode under iommufd
  iommufd: Add an ioctl to query PA from IOVA for noiommu mode
  iommufd: Allow binding to a noiommu device
  iommufd: Move igroup allocation to a function
  iommufd: Support a HWPT without an iommu driver for noiommu
  iommufd: Simplify iommufd_device_remove_vdev()
  iommufd: Fix grammar and spelling in comments
  iommu: Fix dev_iommu memory leak when device_add fails in iommu_mock_device_add
  iommufd/selftest: Fix dmabuf leak in iommufd_test_dmabuf_get()
  iommufd/selftest: Avoid selftest dirty bitmap size wrap

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