From b61f62d408959a37bb6b19f9521b682aec3a5601 Mon Sep 17 00:00:00 2001 From: Uros Bizjak Date: Thu, 9 Apr 2020 14:04:40 +0200 Subject: [PATCH] KVM: SVM: Do not setup frame pointer in __svm_vcpu_run __svm_vcpu_run is a leaf function and does not need a frame pointer. %rbp is also destroyed a few instructions later when guest registers are loaded. Cc: Paolo Bonzini Signed-off-by: Uros Bizjak Message-Id: <20200409120440.1427215-1-ubizjak@gmail.com> Signed-off-by: Paolo Bonzini --- arch/x86/kvm/svm/vmenter.S | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/x86/kvm/svm/vmenter.S b/arch/x86/kvm/svm/vmenter.S index 723887e35e95..bf944334003a 100644 --- a/arch/x86/kvm/svm/vmenter.S +++ b/arch/x86/kvm/svm/vmenter.S @@ -36,7 +36,6 @@ */ SYM_FUNC_START(__svm_vcpu_run) push %_ASM_BP - mov %_ASM_SP, %_ASM_BP #ifdef CONFIG_X86_64 push %r15 push %r14 -- 2.25.1