[PATCH] KVM: VMX: Correct asm constraint in vmcs_load()

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'error' is byte sized, so use a byte register constraint.

Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
 arch/x86/kvm/vmx.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index c195260..a92fdde 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -488,7 +488,7 @@ static void vmcs_load(struct vmcs *vmcs)
 	u8 error;
 
 	asm volatile (__ex(ASM_VMX_VMPTRLD_RAX) "; setna %0"
-			: "=g"(error) : "a"(&phys_addr), "m"(phys_addr)
+			: "=qm"(error) : "a"(&phys_addr), "m"(phys_addr)
 			: "cc", "memory");
 	if (error)
 		printk(KERN_ERR "kvm: vmptrld %p/%llx fail\n",
-- 
1.7.1

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