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 3/10] KVM: MMU: set spte accessed bit properly
Date: Fri, 04 Mar 2011 18:58:02 +0800 [thread overview]
Message-ID: <4D70C5BA.1000604@cn.fujitsu.com> (raw)
In-Reply-To: <4D70C569.1030107@cn.fujitsu.com>
Set spte accessed bit only if guest_initiated == 1 that means the really
accessed
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
arch/x86/kvm/mmu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 10e0982..6e9cb35 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3307,11 +3307,11 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
spin_lock(&vcpu->kvm->mmu_lock);
if (atomic_read(&vcpu->kvm->arch.invlpg_counter) != invlpg_counter)
gentry = 0;
- kvm_mmu_access_page(vcpu, gfn);
kvm_mmu_free_some_pages(vcpu);
++vcpu->kvm->stat.mmu_pte_write;
trace_kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE);
if (guest_initiated) {
+ kvm_mmu_access_page(vcpu, gfn);
if (gfn == vcpu->arch.last_pt_write_gfn
&& !last_updated_pte_accessed(vcpu)) {
++vcpu->arch.last_pt_write_count;
--
1.7.4
next prev parent reply other threads:[~2011-03-04 10:58 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-04 10:56 [PATCH 1/10] KVM: MMU: fix kvm_mmu_slot_remove_write_access Xiao Guangrong
2011-03-04 10:57 ` [PATCH 2/10] KVM: MMU: fix kvm_mmu_get_spte_hierarchy Xiao Guangrong
2011-03-05 16:48 ` Marcelo Tosatti
2011-03-07 3:06 ` Xiao Guangrong
2011-03-07 8:55 ` Avi Kivity
2011-03-04 10:58 ` Xiao Guangrong [this message]
2011-03-04 10:58 ` [PATCH 4/10] KVM: fix rcu usage in init_rmode_* functions Xiao Guangrong
2011-03-04 11:43 ` Jan Kiszka
2011-03-07 2:04 ` Xiao Guangrong
2011-03-04 10:59 ` [PATCH 5/10] KVM: MMU: move mmu pages calculated out of mmu lock Xiao Guangrong
2011-03-04 11:00 ` [PATCH 6/10] KVM: MMU: don not record gfn in kvm_mmu_pte_write Xiao Guangrong
2011-03-06 12:14 ` Avi Kivity
2011-03-06 12:16 ` Avi Kivity
2011-03-07 3:16 ` Xiao Guangrong
2011-03-04 11:00 ` [PATCH 7/10] KVM: MMU: introduce a common function to get no-dirty-logged slot Xiao Guangrong
2011-03-06 12:28 ` Avi Kivity
2011-03-07 3:50 ` Xiao Guangrong
2011-03-04 11:01 ` [PATCH 8/10] KVM: MMU: cleanup page alloc and free Xiao Guangrong
2011-03-04 11:01 ` [PATCH 9/10] KVM: MMU: remove unused macros Xiao Guangrong
2011-03-04 11:02 ` [PATCH 10/10] KVM: cleanup memslot_id function Xiao Guangrong
2011-03-06 12:32 ` Avi Kivity
2011-03-06 12:34 ` [PATCH 1/10] KVM: MMU: fix kvm_mmu_slot_remove_write_access Avi Kivity
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