iommu/amd: Add blocked domain support

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Create global blocked domain with attach device ops. It will clear the
DTE so that all DMA from device will be aborted.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240722115452.5976-1-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Vasant Hegde 2024-07-22 11:54:52 +00:00 • committed by Joerg Roedel

parent 7c626ce4ba

commit e5e5cc8f73

1 changed files with 24 additions and 0 deletions

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drivers/iommu/amd/iommu.c

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