X86_FEATURE_AMD_IBPB_RET
if (cpu_has(c, X86_FEATURE_AMD_IBPB) && !cpu_has(c, X86_FEATURE_AMD_IBPB_RET))
if (boot_cpu_has(X86_FEATURE_AMD_IBPB_RET) &&
kvm_cpu_cap_set(X86_FEATURE_AMD_IBPB_RET);