iommu/vt-d: Enable DMA remapping after rmrr mapped

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The rmrr devices require identity map of the rmrr regions before
enabling DMA remapping. Otherwise, there will be a window during
which DMA from/to the rmrr regions will be blocked. In order to
alleviate this, we move enabling DMA remapping after all rmrr
regions get mapped.

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

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Lu Baolu 2019-05-25 13:41:25 +08:00 • committed by Joerg Roedel

parent d850c2ee5f

commit d8190dc638

1 changed files with 10 additions and 6 deletions

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drivers/iommu/intel-iommu.c

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