[PATCH] kvm: add proper frame pointer logic for vmx

[Qian Cai]

compilation warning since v5.0-rc1,

arch/x86/kvm/vmx/vmx.o: warning: objtool: vmx_vcpu_run.part.17()+0x3171:
call without frame pointer save/setup

Fixes: 453eafbe65f (KVM: VMX: Move VM-Enter + VM-Exit handling to
non-inline sub-routines)
Signed-off-by: Qian Cai <c...@lca.pw>
---
 arch/x86/kvm/vmx/vmenter.S | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S
index bcef2c7e9bc4..874dd3030dee 100644
--- a/arch/x86/kvm/vmx/vmenter.S
+++ b/arch/x86/kvm/vmx/vmenter.S
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/asm.h>
+#include <asm/frame.h>
 
        .text
 
@@ -20,18 +21,22 @@
  */
 ENTRY(vmx_vmenter)
        /* EFLAGS.ZF is set if VMCS.LAUNCHED == 0 */
+       FRAME_BEGIN
        je 2f
 
 1:     vmresume
+       FRAME_END
        ret
 
 2:     vmlaunch
+       FRAME_END
        ret
 
 3:     cmpb $0, kvm_rebooting
        jne 4f
        call kvm_spurious_fault
-4:     ret
+4:     FRAME_END
+       ret
 
        .pushsection .fixup, "ax"
 5:     jmp 3b
-- 
2.17.2 (Apple Git-113)