iommu/amd: Introduce struct amd_iommu_viommu

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Which stores reference to nested parent domain assigned during the call to
struct iommu_ops.viommu_init(). Information in the nest parent is needed
when setting up the nested translation.

Note that the viommu initialization will be introduced in subsequent
commit.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

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Suravee Suthikulpanit 2026-01-15 06:08:09 +00:00 • committed by Joerg Roedel

parent b43a29def2

commit e113a72576

4 changed files with 29 additions and 0 deletions

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6

drivers/iommu/amd/amd_iommu_types.h

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2

drivers/iommu/amd/iommu.c

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16

drivers/iommu/amd/iommufd.c

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5

drivers/iommu/amd/iommufd.h

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