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KVM: MMU: do not reuse the obsolete page
The obsolete page will be zapped soon, do not reuse it to reduce future page fault Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
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@ -1875,6 +1875,9 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
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role.quadrant = quadrant;
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role.quadrant = quadrant;
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}
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}
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for_each_gfn_sp(vcpu->kvm, sp, gfn) {
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for_each_gfn_sp(vcpu->kvm, sp, gfn) {
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if (is_obsolete_sp(vcpu->kvm, sp))
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continue;
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if (!need_sync && sp->unsync)
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if (!need_sync && sp->unsync)
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need_sync = true;
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need_sync = true;
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