KVM: MMU: Don't drop accessed bit while updating an spte

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__set_spte() will happily replace an spte with the accessed bit set with
one that has the accessed bit clear.  Add a helper update_spte() which checks
for this condition and updates the page flag if needed.

Signed-off-by: Avi Kivity <avi@redhat.com>

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Avi Kivity 2010-06-06 15:46:44 +03:00

parent a9221dd5ec

commit b79b93f92c

1 changed files with 21 additions and 4 deletions

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arch/x86/kvm/mmu.c

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