Commit 33f91edb authored by Xiao Guangrong's avatar Xiao Guangrong Committed by Avi Kivity
Browse files

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: default avatarXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 20bd40dc

arch/x86/kvm/mmu.c

+2 −1
Original line number Diff line number Diff line
@@ -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;