iommu/arm-smmu: Set PRIVCFG in stage 1 STEs

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Implement the SMMUv3 equivalent of d346180e70 ("iommu/arm-smmu: Treat
all device transactions as unprivileged"), so that once again those
pesky DMA controllers with their privileged instruction fetches don't
unexpectedly fault in stage 1 domains due to VMSAv8 rules.

Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Robin Murphy 2016-09-12 17:13:47 +01:00 • committed by Will Deacon

parent 08d4ca2a67

commit 95fa99aa40

1 changed files with 6 additions and 1 deletions

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drivers/iommu/arm-smmu-v3.c

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