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authorJames Morse <[email protected]>2019-12-17 12:38:09 +0000
committerMarc Zyngier <[email protected]>2020-01-19 18:05:20 +0000
commit1559b7583ff6ed018c5320d1503fa80b435775f0 (patch)
tree007e2f546b1201d4a2301ebacc8d9273ddf093ce /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace
parentde9375634b1ef49091004d08e5cd4f68695adf0f (diff)
KVM: arm/arm64: Re-check VMA on detecting a poisoned page
When we check for a poisoned page, we use the VMA to tell userspace about the looming disaster. But we pass a pointer to this VMA after having released the mmap_sem, which isn't a good idea. Instead, stash the shift value that goes with this pfn while we are holding the mmap_sem. Reported-by: Marc Zyngier <[email protected]> Signed-off-by: James Morse <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Reviewed-by: Christoffer Dall <[email protected]> Link: https://lore.kernel.org/r/[email protected] Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
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