From: Maxim Levitsky <mlevitsk@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>,
Ingo Molnar <mingo@redhat.com>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Tony Luck <tony.luck@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Tim Chen <tim.c.chen@linux.intel.com>,
Borislav Petkov <bp@alien8.de>,
"David S. Miller" <davem@davemloft.net>,
Dave Hansen <dave.hansen@linux.intel.com>,
"Chang S. Bae" <chang.seok.bae@intel.com>,
Jane Malalane <jane.malalane@citrix.com>,
Kees Cook <keescook@chromium.org>,
Kan Liang <kan.liang@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Maxim Levitsky <mlevitsk@redhat.com>,
x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
Herbert Xu <herbert@gondor.apana.org.au>,
Jiri Olsa <jolsa@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
linux-perf-users@vger.kernel.org,
linux-crypto@vger.kernel.org (open list:CRYPTO API)
Subject: [PATCH v2 1/5] perf/x86/intel/lbr: use setup_clear_cpu_cap instead of clear_cpu_cap
Date: Mon, 18 Jul 2022 17:11:19 +0300 [thread overview]
Message-ID: <20220718141123.136106-2-mlevitsk@redhat.com> (raw)
In-Reply-To: <20220718141123.136106-1-mlevitsk@redhat.com>
clear_cpu_cap(&boot_cpu_data) is very similar to setup_clear_cpu_cap
except that the latter also sets a bit in 'cpu_caps_cleared' which
later clears the same cap in secondary cpus, which is likely
what is meant here.
Fixes: 47125db27e47 ("perf/x86/intel/lbr: Support Architectural LBR")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
---
arch/x86/events/intel/lbr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 13179f31fe10fa..b08715172309a7 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -1860,7 +1860,7 @@ void __init intel_pmu_arch_lbr_init(void)
return;
clear_arch_lbr:
- clear_cpu_cap(&boot_cpu_data, X86_FEATURE_ARCH_LBR);
+ setup_clear_cpu_cap(X86_FEATURE_ARCH_LBR);
}
/**
--
2.34.3
next prev parent reply other threads:[~2022-07-18 14:11 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-18 14:11 [PATCH v2 0/5] x86: cpuid: improve support for broken CPUID configurations Maxim Levitsky
2022-07-18 14:11 ` Maxim Levitsky [this message]
2022-09-19 14:31 ` [PATCH v2 1/5] perf/x86/intel/lbr: use setup_clear_cpu_cap instead of clear_cpu_cap Borislav Petkov
2022-09-20 8:20 ` Maxim Levitsky
2022-09-26 13:12 ` Borislav Petkov
2022-09-28 10:49 ` Maxim Levitsky
2022-10-20 8:59 ` Borislav Petkov
2022-10-20 9:05 ` Herbert Xu
2022-10-20 10:21 ` Maxim Levitsky
2022-10-20 11:13 ` Borislav Petkov
2022-10-22 21:08 ` H. Peter Anvin
2022-11-02 13:40 ` Paolo Bonzini
2022-11-02 14:27 ` Elliott, Robert (Servers)
2022-11-02 16:23 ` H. Peter Anvin
2022-11-02 18:19 ` H. Peter Anvin
2022-11-02 19:14 ` Elliott, Robert (Servers)
2022-11-03 13:26 ` Paolo Bonzini
2022-11-03 13:30 ` Paolo Bonzini
2022-07-18 14:11 ` [PATCH v2 2/5] x86/cpuid: refactor setup_clear_cpu_cap()/clear_cpu_cap() Maxim Levitsky
2022-10-21 16:19 ` Borislav Petkov
2022-11-07 19:10 ` Borislav Petkov
2022-11-07 21:57 ` Borislav Petkov
2022-07-18 14:11 ` [PATCH v2 3/5] x86/cpuid: move filter_cpuid_features to cpuid-deps.c Maxim Levitsky
2022-07-18 14:11 ` [PATCH v2 4/5] x86/cpuid: remove 'warn' parameter from filter_cpuid_features Maxim Levitsky
2022-07-18 14:11 ` [PATCH v2 5/5] x86/cpuid: check for dependencies violations in CPUID and attempt to fix them Maxim Levitsky
2022-07-28 7:30 ` [PATCH v2 0/5] x86: cpuid: improve support for broken CPUID configurations Maxim Levitsky
2022-08-01 16:05 ` Maxim Levitsky
2022-08-01 16:31 ` Dave Hansen
2022-08-01 16:41 ` Maxim Levitsky
2022-09-19 13:43 ` Maxim Levitsky
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