Take advantage of __GCC_ASM_FLAG_OUTPUTS__ when possible and also let
the compiler choose the register in all cases.
Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
---
arch/x86/kvm/vmx/nested.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 495edb36b525..15a8ae7bb247 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -2767,12 +2767,12 @@ static int nested_vmx_check_vmentry_hw(struct kvm_vcpu *vcpu)
* VMLAUNCH and VMRESUME clear RFLAGS.{CF,ZF} on VM-Exit, set
* RFLAGS.CF on VM-Fail Invalid and set RFLAGS.ZF on VM-Fail
* Valid. vmx_vmenter() directly "returns" RFLAGS, and so the
- * results of VM-Enter is captured via SETBE to vm_fail.
+ * results of VM-Enter is captured via CC_{SET,OUT} to vm_fail.
*/
"call vmx_vmenter\n\t"
- "setbe %%dl\n\t"
- : ASM_CALL_CONSTRAINT, "=dl"(vm_fail)
+ CC_SET(be)
+ : ASM_CALL_CONSTRAINT, CC_OUT(be) (vm_fail)
: "c"(vmx), "d"((unsigned long)HOST_RSP),
[launched]"i"(offsetof(struct vcpu_vmx, __launched)),
[host_rsp]"i"(offsetof(struct vcpu_vmx, host_rsp)),
--
2.20.1
