From: Uros Bizjak <ubizjak@gmail.com>
To: kvm@vger.kernel.org
Cc: Uros Bizjak <ubizjak@gmail.com>,
Sean Christopherson <sean.j.christopherson@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: [PATCH] KVM: VMX: Remove unnecessary exception trampoline in vmx_vmenter
Date: Mon, 6 Apr 2020 17:16:41 +0200 [thread overview]
Message-ID: <20200406151641.67698-1-ubizjak@gmail.com> (raw)
The exception trampoline in .fixup section is not needed, the exception handling code can jump directly to the label in .text section.
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
---
arch/x86/kvm/vmx/vmenter.S | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S
index 81ada2ce99e7..56d701db8734 100644
--- a/arch/x86/kvm/vmx/vmenter.S
+++ b/arch/x86/kvm/vmx/vmenter.S
@@ -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)
--
2.25.1
next reply other threads:[~2020-04-06 15:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-06 15:16 Uros Bizjak [this message]
2020-04-06 16:28 ` [PATCH] KVM: VMX: Remove unnecessary exception trampoline in vmx_vmenter Sean Christopherson
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