From: Borislav Petkov <bp@alien8.de>
To: X86 ML <x86@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 6/6] x86/cpu: Remove "noclflush"
Date: Thu, 27 Jan 2022 12:56:26 +0100 [thread overview]
Message-ID: <20220127115626.14179-7-bp@alien8.de> (raw)
In-Reply-To: <20220127115626.14179-1-bp@alien8.de>
From: Borislav Petkov <bp@suse.de>
Not really needed anymore and there's clearcpuid=.
Signed-off-by: Borislav Petkov <bp@suse.de>
---
Documentation/admin-guide/kernel-parameters.txt | 2 --
arch/x86/kernel/cpu/common.c | 8 --------
2 files changed, 10 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index dd398f83b335..9882c0cc9722 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3377,8 +3377,6 @@
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 3d0a5340a678..c090cc69c615 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1727,14 +1727,6 @@ 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;
--
2.29.2
next prev parent reply other threads:[~2022-01-27 11:56 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-27 11:56 [PATCH v2 0/6] x86/cpu: Do some janitorial work Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 1/6] x86/cpu: Allow feature bit names from /proc/cpuinfo in clearcpuid= Borislav Petkov
2022-02-07 22:04 ` Kees Cook
2022-02-08 11:54 ` Borislav Petkov
2022-04-04 18:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 2/6] x86/cpu: Remove "nosep" Borislav Petkov
2022-02-07 21:58 ` Kees Cook
2022-04-04 18:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 3/6] x86/cpu: Remove CONFIG_X86_SMAP and "nosmap" Borislav Petkov
2022-02-07 22:07 ` Kees Cook
2022-02-08 15:06 ` Borislav Petkov
2022-02-08 21:01 ` Borislav Petkov
2022-02-09 2:56 ` Kees Cook
2022-02-09 11:53 ` Borislav Petkov
2022-04-04 18:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 4/6] x86/cpu: Remove "nosmep" Borislav Petkov
2022-02-07 22:07 ` Kees Cook
2022-04-04 18:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 5/6] x86/cpu: Remove "noexec" Borislav Petkov
2022-02-07 22:25 ` Kees Cook
2022-02-08 17:40 ` Sean Christopherson
2022-02-08 19:56 ` Borislav Petkov
2022-04-04 18:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` Borislav Petkov [this message]
2022-02-07 22:08 ` [PATCH v2 6/6] x86/cpu: Remove "noclflush" Kees Cook
2022-04-04 18:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
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