el.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next
patch link:
https://lore.kernel.org/r/544ab894a301c83eb9f9d7a6326f4cb87f517019.1722644866.git.nicolinc%40nvidia.com
patch subject: [PATCH v2 3/3] iommufd/selftest: Add coverage for reserved IOVAs
config: x86_64-rhel-8.3-kselftes
Define an IOMMU_RESV_SW_MSI region (within the mock aperture) as the ARM
SMMU drivers do.
Implement the get_msi_mapping_domain nested domain op to allow dma-iommu
to find the correct paging domain.
Add a new IOMMU_TEST_OP_MD_CHECK_SW_MSI to loopback test the MSI mapping
using public dma-iommu and
