KVM: VMX: Remove unnecessary exception trampoline in vmx_vmenter
authorUros Bizjak <ubizjak@gmail.com>
Mon, 6 Apr 2020 20:21:08 +0000 (22:21 +0200)
committerPaolo Bonzini <pbonzini@redhat.com>
Tue, 7 Apr 2020 08:21:20 +0000 (04:21 -0400)
The exception trampoline in .fixup section is not needed, the exception
handling code can jump directly to the label in the .text section.

Changes since v1:
- Fix commit message.

Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Message-Id: <20200406202108.74300-1-ubizjak@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/vmx/vmenter.S

index 9651ba3..87f3f24 100644 (file)
@@ -58,12 +58,8 @@ SYM_FUNC_START(vmx_vmenter)
        ret
 4:     ud2
 
-       .pushsection .fixup, "ax"
-5:     jmp 3b
-       .popsection
-
-       _ASM_EXTABLE(1b, 5b)
-       _ASM_EXTABLE(2b, 5b)
+       _ASM_EXTABLE(1b, 3b)
+       _ASM_EXTABLE(2b, 3b)
 
 SYM_FUNC_END(vmx_vmenter)