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Commit 3201b5d9 authored by Avi Kivity's avatar Avi Kivity
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KVM: MMU: Fix setting the accessed bit on non-speculative sptes 



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: default avatarAvi Kivity <avi@qumranet.com>
parent 171d595d

arch/x86/kvm/mmu.c

+1 −1
Original line number Diff line number Diff line
@@ -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)