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Commit 29f54745 authored by Jason Gunthorpe's avatar Jason Gunthorpe Committed by Joerg Roedel
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iommu/amd: Add missing domain type checks



Drivers are supposed to list the domain types they support in their
domain_alloc() ops so when we add new domain types, like BLOCKING or SVA,
they don't start breaking.

This ended up providing an empty UNMANAGED domain when the core code asked
for a BLOCKING domain, which happens to be the fallback for drivers that
don't support it, but this is completely wrong for SVA.

Check for the DMA types AMD supports and reject every other kind.

Fixes: 13646796 ("iommu: Add IOMMU SVA domain support")
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Reviewed-by: default avatarVasant Hegde <vasant.hegde@amd.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/0-v1-2ac37b893728+da-amd_check_types_jgg@nvidia.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 8ec4e2be
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