iommu/vt-d: Flush PASID-based iotlb for iova over first level

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When software has changed first-level tables, it should invalidate
the affected IOTLB and the paging-structure-caches using the PASID-
based-IOTLB Invalidate Descriptor defined in spec 6.5.2.4.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Lu Baolu 2020-01-02 08:18:18 +08:00 • committed by Joerg Roedel

parent ddf09b6d43

commit 33cd6e642d

3 changed files with 84 additions and 15 deletions

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41

drivers/iommu/dmar.c

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56

drivers/iommu/intel-iommu.c

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2

include/linux/intel-iommu.h

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