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

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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: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210918005636.3675-8-jiangshanlai@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Lai Jiangshan 2021-09-18 08:56:33 +08:00 committed by Paolo Bonzini
parent c3e5e415bc
commit 5591c0694d
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/mmu/mmu.c
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@ -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;
}