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(parent: 400a28a) | patch
iommu/amd: Put IOMMUv2 capable devices in pt_domain
authorJoerg Roedel <joerg.roedel@amd.com>
Thu, 1 Dec 2011 14:49:45 +0000 (15:49 +0100)
committerJoerg Roedel <joerg.roedel@amd.com>
Mon, 12 Dec 2011 13:54:58 +0000 (14:54 +0100)
commit5abcdba4fa535c29f736455e37229ee97e0e7f5d
tree228892cf94773b3215fa588fe8e5fc617afa7591tree | snapshot
parent400a28a05f2cc1a311acb4ff6ac64d8402d21678commit | diff
iommu/amd: Put IOMMUv2 capable devices in pt_domain

If the device starts to use IOMMUv2 features the dma handles
need to stay valid. The only sane way to do this is to use a
identity mapping for the device and not translate it by the
iommu. This is implemented with this patch. Since this lifts
the device-isolation there is also a new kernel parameter
which allows to disable that feature.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Documentation/kernel-parameters.txt diff | blob | history
drivers/iommu/amd_iommu.c diff | blob | history
drivers/iommu/amd_iommu_init.c diff | blob | history
drivers/iommu/amd_iommu_types.h diff | blob | history
Domain: System / Kernel;