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(parent: 8388f7d) | patch
iommu/amd: Do not support IOMMUv2 APIs when SNP is enabled
authorSuravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Wed, 13 Jul 2022 22:56:51 +0000 (17:56 -0500)
committerJoerg Roedel <jroedel@suse.de>
Fri, 15 Jul 2022 08:44:03 +0000 (10:44 +0200)
commit30315e71b42603307989d813a620781ff8238f3c
tree5986f06cddd5952e4f7c495dbe111361e07ca93ftree | snapshot
parent8388f7df936bae004026bd718466127f27bbc398commit | diff
iommu/amd: Do not support IOMMUv2 APIs when SNP is enabled

The IOMMUv2 APIs (for supporting shared virtual memory with PASID)
configures the domain with IOMMU v2 page table, and sets DTE[Mode]=0.
This configuration cannot be supported on SNP-enabled system.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20220713225651.20758-10-suravee.suthikulpanit@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
drivers/iommu/amd/init.c diff | blob | history
Domain: System / Kernel;