Now that KVM doesn't use shadow_accessed_mask to detect if hardware A/D bits are enabled, set shadow_accessed_mask for EPT even when A/D bits are disabled in hardware. This will allow using shadow_accessed_mask for software purposes, e.g. to preserve accessed status in a non-present SPTE acros NUMA balancing, if something like that is ever desirable. Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx> --- arch/x86/kvm/mmu/spte.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/mmu/spte.c b/arch/x86/kvm/mmu/spte.c index c9543625dda2..e352d1821319 100644 --- a/arch/x86/kvm/mmu/spte.c +++ b/arch/x86/kvm/mmu/spte.c @@ -419,7 +419,7 @@ void kvm_mmu_set_ept_masks(bool has_ad_bits, bool has_exec_only) kvm_ad_enabled = has_ad_bits; shadow_user_mask = VMX_EPT_READABLE_MASK; - shadow_accessed_mask = has_ad_bits ? VMX_EPT_ACCESS_BIT : 0ull; + shadow_accessed_mask = VMX_EPT_ACCESS_BIT; shadow_dirty_mask = has_ad_bits ? VMX_EPT_DIRTY_BIT : 0ull; shadow_nx_mask = 0ull; shadow_x_mask = VMX_EPT_EXECUTABLE_MASK; -- 2.47.0.rc1.288.g06298d1525-goog
