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| author | Kees Cook <keescook@chromium.org> | 2018-05-03 15:03:30 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-22 16:58:01 +0200 |
| commit | ea055f7d43fb3a9d56e80d0116104555d6dde3f7 (patch) | |
| tree | 863672777f838f58d55a71f411a8b79983289e8a /arch | |
| parent | 0a112f104548667f5618477ff0f2a54ee626addd (diff) | |
| download | linux-stable-ea055f7d43fb3a9d56e80d0116104555d6dde3f7.tar.gz linux-stable-ea055f7d43fb3a9d56e80d0116104555d6dde3f7.tar.bz2 linux-stable-ea055f7d43fb3a9d56e80d0116104555d6dde3f7.zip | |
x86/bugs: Make boot modes __ro_after_init
commit f9544b2b076ca90d887c5ae5d74fab4c21bb7c13 upstream
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>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -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 3760931cd40a..65114d2edea8 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -128,7 +128,8 @@ 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) { @@ -406,7 +407,7 @@ 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 { |