iommu/vt-d: Don't be too aggressive when clearing one context entry

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Previously, we were invalidating context cache and IOTLB globally when
clearing one context entry.  This is a tad too aggressive.
Invalidate the context cache and IOTLB for the interested device only.

Signed-off-by: Filippo Sironi <sironi@amazon.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

...

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Filippo Sironi 2017-08-31 10:58:11 +02:00 • committed by Joerg Roedel

parent 11b93ebfa0

commit 5082219b6a

1 changed files with 24 additions and 18 deletions

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drivers/iommu/intel-iommu.c

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