From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Date: Mon, 27 Sep 2010 10:05:00 +0000 (+0800)
Subject: KVM: MMU: set access bit for direct mapping
X-Git-Tag: Ubuntu-5.0.0-8.9~21294^2~12
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=33f91edb9211f5c0392071f9eb01958ec69f2193;p=mirror_ubuntu-disco-kernel.git

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 363004699012..88203fa4ef05 100644
--- 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;