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KVM: MMU: Fix setting the accessed bit on non-speculative sptes

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The accessed bit was accidentally turned on in a random flag word, rather
than, the spte itself, which was lucky, since it used the non-EPT compatible
PT_ACCESSED_MASK.

Fix by turning the bit on in the spte and changing it to use the portable
accessed mask.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity 2008-08-27 20:01:04 +03:00
parent 171d595d3b
commit 3201b5d9f0
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/mmu.c
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@ -1192,7 +1192,7 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
*/
spte = shadow_base_present_pte | shadow_dirty_mask;
if (!speculative)
pte_access |= PT_ACCESSED_MASK;
spte |= shadow_accessed_mask;
if (!dirty)
pte_access &= ~ACC_WRITE_MASK;
if (pte_access & ACC_EXEC_MASK)