diff options
| -rw-r--r-- | arch/x86/kernel/cpu/bugs.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index d02f73c5339d..6c04aef4b63b 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -2418,8 +2418,10 @@ static void __init srso_select_mitigation(void) * IBPB microcode has been applied. */ if ((boot_cpu_data.x86 < 0x19) && - (!cpu_smt_possible() || (cpu_smt_control == CPU_SMT_DISABLED))) + (!cpu_smt_possible() || (cpu_smt_control == CPU_SMT_DISABLED))) { setup_force_cpu_cap(X86_FEATURE_SRSO_NO); + return; + } } if (retbleed_mitigation == RETBLEED_MITIGATION_IBPB) { @@ -2696,6 +2698,9 @@ static ssize_t retbleed_show_state(char *buf) static ssize_t srso_show_state(char *buf) { + if (boot_cpu_has(X86_FEATURE_SRSO_NO)) + return sysfs_emit(buf, "Not affected\n"); + return sysfs_emit(buf, "%s%s\n", srso_strings[srso_mitigation], (cpu_has_ibpb_brtype_microcode() ? "" : ", no microcode")); |