Commit 5591c069 authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Paolo Bonzini
Browse files

KVM: X86: Zap the invalid list after remote tlb flushing 



In mmu_sync_children(), it can zap the invalid list after remote tlb flushing.
Emptifying the invalid list ASAP might help reduce a remote tlb flushing
in some cases.

Signed-off-by: default avatarLai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210918005636.3675-8-jiangshanlai@gmail.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent c3e5e415

arch/x86/kvm/mmu/mmu.c

+1 −1
Original line number Diff line number Diff line
@@ -2035,7 +2035,7 @@ static int mmu_sync_children(struct kvm_vcpu *vcpu, 
			protected |= rmap_write_protect(vcpu, sp->gfn);



		if (protected) {

			kvm_flush_remote_tlbs(vcpu->kvm);

			kvm_mmu_remote_flush_or_zap(vcpu->kvm, &invalid_list, true);

			flush = false;

		}