iommu/vt-d: Add nested domain allocation

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This adds the support for IOMMU_HWPT_DATA_VTD_S1 type. And 'nested_parent'
is added to mark the nested parent domain to sanitize the input parent domain.

Link: https://lore.kernel.org/r/20231026044216.64964-8-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.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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Lu Baolu 2023-10-25 21:42:15 -07:00 • committed by Jason Gunthorpe

parent 9838f2bb6b

commit b41e38e225

3 changed files with 23 additions and 20 deletions

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39

drivers/iommu/intel/iommu.c

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1

drivers/iommu/intel/iommu.h

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3

drivers/iommu/intel/nested.c

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