x86/amd-iommu: Add passthrough mode initialization functions

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When iommu=pt is passed on kernel command line the devices
should run untranslated. This requires the allocation of a
special domain for that purpose. This patch implements the
allocation and initialization path for iommu=pt.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

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This commit is contained in:

Joerg Roedel 2009-08-26 15:26:30 +02:00

parent 2650815fb0

commit 0feae533dd

3 changed files with 69 additions and 8 deletions

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1

arch/x86/include/asm/amd_iommu.h

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4

arch/x86/include/asm/amd_iommu_types.h

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72

arch/x86/kernel/amd_iommu.c

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