From: Peng Hao <flyingpeng@xxxxxxxxxxx> When retpoline is enabled, indirect function calls introduce additional performance overhead. Avoid frequent indirect calls to VMGEXIT when SEV is enabled. Signed-off-by: Peng Hao <flyingpeng@xxxxxxxxxxx> --- arch/x86/kvm/svm/svm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index a713c803a3a3..79d031fe2253 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3508,6 +3508,10 @@ int svm_invoke_exit_handler(struct kvm_vcpu *vcpu, u64 exit_code) return kvm_emulate_halt(vcpu); else if (exit_code == SVM_EXIT_NPF) return npf_interception(vcpu); +#ifdef CONFIG_KVM_AMD_SEV + else if (exit_code == SVM_EXIT_VMGEXIT) + return sev_handle_vmgexit(vcpu); +#endif #endif return svm_exit_handlers[exit_code](vcpu); } -- 2.27.0
