iommu/amd: Init unity mappings only for dma_ops domains

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The default domain for a device might also be
identity-mapped. In this case the kernel would crash when
unity mappings are defined for the device. Fix that by
making sure the domain is a dma_ops domain.

Fixes: 0bb6e243d7 ('iommu/amd: Support IOMMU_DOMAIN_DMA type allocation')
Cc: stable@vger.kernel.org # v4.2+
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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This commit is contained in:

Joerg Roedel 2016-07-13 12:35:24 +02:00

parent cf7513e759

commit b548e786ce

1 changed files with 4 additions and 2 deletions

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drivers/iommu/amd_iommu.c

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