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x86/cpu: Remove "noclflush"

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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
This commit is contained in:
Borislav Petkov
2022-01-27 12:56:26 +01:00
parent 76ea0025a2
commit f8858b5eff
2 changed files with 0 additions and 10 deletions
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2
Documentation/admin-guide/kernel-parameters.txt
View File

@@ -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.

8
arch/x86/kernel/cpu/common.c
View File

@@ -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;