| From | Xiao Guangrong <> | Subject | [PATCH v7 08/11] KVM: MMU: do not reuse the obsolete page | Date | Thu, 23 May 2013 03:55:57 +0800 |
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The obsolete page will be zapped soon, do not resue it to reduce future page fault
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> --- arch/x86/kvm/mmu.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 3a3e6c5..9b57faa 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1869,6 +1869,9 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, role.quadrant = quadrant; } for_each_gfn_sp(vcpu->kvm, sp, gfn) { + if (is_obsolete_sp(vcpu->kvm, sp)) + continue; + if (!need_sync && sp->unsync) need_sync = true; -- 1.7.7.6
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