diff options
| author | Kees Cook <keescook@chromium.org> | 2018-05-03 15:03:30 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-05-05 00:51:43 +0200 |
| commit | f9544b2b076ca90d887c5ae5d74fab4c21bb7c13 (patch) | |
| tree | 04bcbd52a0a44fd2a67faf3c18e714c6aca785a9 | |
| parent | 5c3070890d06ff82eecb808d02d2ca39169533ef (diff) | |
x86/bugs: Make boot modes __ro_after_init
There's no reason for these to be changed after boot.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/x86/kernel/cpu/bugs.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index e3afb610f2ad..f8d9be0e86b1 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -129,7 +129,8 @@ static const char *spectre_v2_strings[] = { #undef pr_fmt #define pr_fmt(fmt) "Spectre V2 : " fmt -static enum spectre_v2_mitigation spectre_v2_enabled = SPECTRE_V2_NONE; +static enum spectre_v2_mitigation spectre_v2_enabled __ro_after_init = + SPECTRE_V2_NONE; void x86_spec_ctrl_set(u64 val) { @@ -407,7 +408,7 @@ retpoline_auto: #undef pr_fmt #define pr_fmt(fmt) "Speculative Store Bypass: " fmt -static enum ssb_mitigation ssb_mode = SPEC_STORE_BYPASS_NONE; +static enum ssb_mitigation ssb_mode __ro_after_init = SPEC_STORE_BYPASS_NONE; /* The kernel command line selection */ enum ssb_mitigation_cmd { |