Pull iommufd updates from Jason Gunthorpe:
 "Collection of small cleanup and one fix:

   - Sort headers and struct forward declarations

   - Fix random selftest failures in some cases due to dirty tracking
     tests

   - Have the reserved IOVA regions mechanism work when a HWPT is used
     as a nesting parent. This updates the nesting parent's IOAS with
     the reserved regions of the device and will also install the ITS
     doorbell page on ARM.

   - Add missed validation of parent domain ops against the current
     iommu

   - Fix a syzkaller bug related to integer overflow during ALIGN()

   - Tidy two iommu_domain attach paths"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommu: Set iommu_attach_handle->domain in core
  iommufd: Avoid duplicated __iommu_group_set_core_domain() call
  iommufd: Protect against overflow of ALIGN() during iova allocation
  iommufd: Reorder struct forward declarations
  iommufd: Check the domain owner of the parent before creating a nesting domain
  iommufd/device: Enforce reserved IOVA also when attached to hwpt_nested
  iommufd/selftest: Fix buffer read overrrun in the dirty test
  iommufd: Reorder include files