From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
To: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
Subject: [PATCH 3/7] KVM: MMU: set access bit for direct mapping
Date: Mon, 27 Sep 2010 18:05:00 +0800 [thread overview]
Message-ID: <4CA06C4C.1070000@cn.fujitsu.com> (raw)
In-Reply-To: <4CA06BA4.4090303@cn.fujitsu.com>
Set access bit while setup up direct page table if it's nonpaing or npt enabled,
it's good for CPU's speculate access
Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
arch/x86/kvm/mmu.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 3630046..88203fa 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;
--
1.7.0.4
next prev parent reply other threads:[~2010-09-27 10:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-27 10:02 [PATCH 1/7] KVM: MMU: update 'root_hpa' out of loop in PAE shadow path Xiao Guangrong
2010-09-27 10:03 ` [PATCH 2/7] KVM: MMU: cleanup for error mask set while walk guest page table Xiao Guangrong
2010-09-27 14:30 ` Avi Kivity
2010-09-28 8:58 ` Xiao Guangrong
2010-09-28 9:00 ` Avi Kivity
2010-09-27 10:05 ` Xiao Guangrong [this message]
2010-09-27 10:07 ` [PATCH 5/7] KVM: MMU: audit: unregister audit tracepoints before module unloaded Xiao Guangrong
2010-09-27 10:07 ` [PATCH 6/7] KVM: MMU: audit: introduce audit_printk to cleanup audit code Xiao Guangrong
2010-09-27 10:09 ` [PATCH 7/7] KVM: MMU: audit: check whether have unsync sps after root sync Xiao Guangrong
2010-09-27 10:14 ` [PATCH 1/7] KVM: MMU: update 'root_hpa' out of loop in PAE shadow path Xiao Guangrong
2010-09-27 10:16 ` Avi Kivity
2010-09-27 14:39 ` Avi Kivity
2010-09-28 2:43 ` Xiao Guangrong
2010-09-28 9:03 ` Avi Kivity
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