iommu/amd: Enhance amd_iommu_domain_alloc_user()

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Previous patch enhanced core layer to check device PASID capability and
pass right flags to ops->domain_alloc_user().

Enhance amd_iommu_domain_alloc_user() to allocate domain with
appropriate page table based on flags parameter.
  - If flags is empty then allocate domain with default page table type.
    This will eventually replace ops->domain_alloc().
    For UNMANAGED domain, core will call this interface with flags=0. So
    AMD driver will continue to allocate V1 page table.

  - If IOMMU_HWPT_ALLOC_PASID flags is passed then allocate domain with v2
    page table.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241028093810.5901-10-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

...

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Vasant Hegde 2024-10-28 09:38:07 +00:00 • committed by Joerg Roedel

parent a005ef62f9

commit ce2cd17546

1 changed files with 27 additions and 5 deletions

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drivers/iommu/amd/iommu.c

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