From: Avi Kivity <avi@qumranet.com>
Date: Sun, 30 Sep 2007 08:50:12 +0000 (+0200)
Subject: KVM: VMX: Don't clear the vmcs if the vcpu is not loaded on any processor
X-Git-Tag: firefly_0821_release~23631^2~231
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=eae5ecb5b9043812968fae7ad9d74bf5e7a50245;p=firefly-linux-kernel-4.4.55.git

KVM: VMX: Don't clear the vmcs if the vcpu is not loaded on any processor

Noted by Eddie Dong.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 27a3318fa6c2..cc2844203c24 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -225,7 +225,9 @@ static void __vcpu_clear(void *arg)
 
 static void vcpu_clear(struct vcpu_vmx *vmx)
 {
-	if (vmx->vcpu.cpu != raw_smp_processor_id() && vmx->vcpu.cpu != -1)
+	if (vmx->vcpu.cpu == -1)
+		return;
+	if (vmx->vcpu.cpu != raw_smp_processor_id())
 		smp_call_function_single(vmx->vcpu.cpu, __vcpu_clear,
 					 vmx, 0, 1);
 	else