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authorMarc Zyngier <[email protected]>2017-10-23 16:11:20 +0000
committerChristoffer Dall <[email protected]>2018-01-08 14:20:45 +0000
commita9c0e12ebee56ef06b7eccdbc73bab71d0018df8 (patch)
tree2bfc38bb928ea06772b9fde4933a4e1a47a9a189 /tools/perf/scripts/python/stackcollapse.py
parentKVM: arm/arm64: Limit icache invalidation to prefetch aborts (diff)
downloadkernel-a9c0e12ebee56ef06b7eccdbc73bab71d0018df8.tar.gz
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KVM: arm/arm64: Only clean the dcache on translation fault
The only case where we actually need to perform a dcache maintenance is when we map the page for the first time, and subsequent permission faults do not require cache maintenance. Let's make it conditional on not being a permission fault (and thus a translation fault). Reviewed-by: Christoffer Dall <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Christoffer Dall <[email protected]>
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