iommu/vt-d: Add a check for 5-level paging support

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Add a check to verify IOMMU 5-level paging support. If the CPU supports
supports 5-level paging but the IOMMU does not support it then disable
SVM by not allocating PASID tables.

Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Sohil Mehta 2017-12-20 11:59:26 -08:00 • committed by Joerg Roedel

parent 59103caa68

commit f1ac10c24e

2 changed files with 5 additions and 0 deletions

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4

drivers/iommu/intel-svm.c

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1

include/linux/intel-iommu.h

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