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Commit 7f52af74 authored by Xiao Guangrong's avatar Xiao Guangrong Committed by Gleb Natapov
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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: default avatarXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Reviewed-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarGleb Natapov <gleb@redhat.com>
parent 35006126

arch/x86/kvm/mmu.c

+3 −0
Original line number Diff line number Diff line
@@ -1875,6 +1875,9 @@ 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;