iommufd/selftest: Add nested domain allocation for mock domain

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Add nested domain support in the ->domain_alloc_user op with some proper
sanity checks. Then, add a domain_nested_ops for all nested domains and
split the get_md_pagetable helper into paging and nested helpers.

Also, add an iotlb as a testing property of a nested domain.

Link: https://lore.kernel.org/r/20231026043938.63898-10-yi.l.liu@intel.com
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Nicolin Chen 2023-10-25 21:39:37 -07:00 • committed by Jason Gunthorpe

parent e9d36c07bb

commit 65fe32f7a4

2 changed files with 140 additions and 30 deletions

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18

drivers/iommu/iommufd/iommufd_test.h

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152

drivers/iommu/iommufd/selftest.c

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