linux-kernel - [PATCH 18/50] KVM: VMX: Don't clear the vmcs if the vcpu is not loaded on any processor

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Date:	Sun, 23 Dec 2007 16:51:03 +0200
From:	Avi Kivity <avi@...ranet.com>
To:	linux-kernel@...r.kernel.org, kvm-devel@...ts.sourceforge.net
Subject: [PATCH 18/50] 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@...ranet.com>
---
 drivers/kvm/vmx.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index d32e63d..8929575 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
-- 
1.5.3.7

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