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| author | Uros Bizjak <ubizjak@gmail.com> | 2020-04-09 15:04:40 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-04-15 19:08:38 +0300 |
| commit | b61f62d408959a37bb6b19f9521b682aec3a5601 (patch) | |
| tree | 4b2888a373b018ecb8f77cd26e70c8a2e7f74dc9 /arch/x86/kvm | |
| parent | b2bce0a589cafcf1a8755627b932c80621aef575 (diff) | |
| download | linux-b61f62d408959a37bb6b19f9521b682aec3a5601.tar.xz | |
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 <pbonzini@redhat.com>
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Message-Id: <20200409120440.1427215-1-ubizjak@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/svm/vmenter.S | 1 |
1 files changed, 0 insertions, 1 deletions
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 |