KVM: MMU: set access bit for direct mapping

Set access bit while setup up direct page table if it's nonpaing or npt enabled,
it's good for CPU's speculate access

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 3630046..88203fa 100644 (file)
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2240,7 +2240,8 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write,
                        __set_spte(iterator.sptep,
                                   __pa(sp->spt)
                                   | PT_PRESENT_MASK | PT_WRITABLE_MASK
-                                  | shadow_user_mask | shadow_x_mask);
+                                  | shadow_user_mask | shadow_x_mask
+                                  | shadow_accessed_mask);
                }
        }
        return pt_write;