diff mbox series

[V2,07/10] KVM: X86: Zap the invalid list after remote tlb flushing

Message ID 20210918005636.3675-8-jiangshanlai@gmail.com (mailing list archive)
State New, archived
Headers show
Series [V2,01/10] KVM: X86: Fix missed remote tlb flush in rmap_write_protect() | expand

Commit Message

Lai Jiangshan Sept. 18, 2021, 12:56 a.m. UTC 
From: Lai Jiangshan <laijs@linux.alibaba.com>

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>
---
 arch/x86/kvm/mmu/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 2f3f47dc96b0..ff52e8354148 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -2032,7 +2032,7 @@  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;
 		}