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| author | Borislav Petkov <bp@suse.de> | 2022-01-27 12:56:26 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-04-04 10:17:05 +0200 |
| commit | f8858b5eff30d1b2be15ef1ea6285964013b95e6 (patch) | |
| tree | eb4917bd7822c331e3b31a36756e6c326cffaa40 | |
| parent | 76ea0025a214cdf0d2c204f4c21cbffa9fb57c32 (diff) | |
| download | linux-f8858b5eff30d1b2be15ef1ea6285964013b95e6.tar.bz2 | |
x86/cpu: Remove "noclflush"
Not really needed anymore and there's clearcpuid=.
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220127115626.14179-7-bp@alien8.de
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 8 |
2 files changed, 0 insertions, 10 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a2299b2ff2c8..8c18e7d98f8a 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3444,8 +3444,6 @@ nocache [ARM] - noclflush [BUGS=X86] Don't use the CLFLUSH instruction - delayacct [KNL] Enable per-task delay accounting nodsp [SH] Disable hardware DSP at boot time. diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 5791f692d67e..7dd7604cf46a 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1870,14 +1870,6 @@ void identify_secondary_cpu(struct cpuinfo_x86 *c) update_srbds_msr(); } -static __init int setup_noclflush(char *arg) -{ - setup_clear_cpu_cap(X86_FEATURE_CLFLUSH); - setup_clear_cpu_cap(X86_FEATURE_CLFLUSHOPT); - return 1; -} -__setup("noclflush", setup_noclflush); - void print_cpu_info(struct cpuinfo_x86 *c) { const char *vendor = NULL; |