From: Tony Luck <tony.luck@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>, Ingo Molnar <mingo@kernel.org>,
Fenghua Yu <fenghua.yu@intel.com>, Borislav Petkov <bp@alien8.de>,
H Peter Anvin <hpa@zytor.com>, Ashok Raj <ashok.raj@intel.com>,
Ravi V Shankar <ravi.v.shankar@intel.com>,
Sean Christopherson <sean.j.christopherson@intel.com>,
Andy Lutomirski <luto@kernel.org>,
linux-kernel@vger.kernel.org, x86@kernel.org
Subject: [PATCH 3/3] x86/split_lock: Add Tremont family CPU models
Date: Thu, 16 Apr 2020 13:57:54 -0700 [thread overview]
Message-ID: <20200416205754.21177-4-tony.luck@intel.com> (raw)
In-Reply-To: <20200416205754.21177-1-tony.luck@intel.com>
Tremont CPUs support IA32_CORE_CAPABILITIES bits to indicate
whether speciifc SKUs have support for split lock detection.
Fixes: 6650cdd9a8cc ("x86/split_lock: Enable split lock detection by kernel")
Cc: <stable@vger.kernel.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
arch/x86/kernel/cpu/intel.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 3b43b2c91054..d559481b54a6 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -1130,6 +1130,9 @@ void switch_to_sld(unsigned long tifn)
static const struct x86_cpu_id split_lock_cpu_ids[] __initconst = {
X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X, 0),
X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, 0),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT, 1),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, 1),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_L, 1),
{}
};
--
2.21.1
next prev parent reply other threads:[~2020-04-16 20:58 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-16 20:57 [PATCH 0/3] Split lock enumeration cleanup and fixes Tony Luck
2020-04-16 20:57 ` [PATCH 1/3] x86/split_lock: Update to use X86_MATCH_INTEL_FAM6_MODEL() Tony Luck
2020-04-17 10:20 ` [tip: x86/urgent] " tip-bot2 for Tony Luck
2020-04-16 20:57 ` [PATCH 2/3] x86/split_lock: Bits in IA32_CORE_CAPABILITIES are not architectural Tony Luck
2020-04-16 22:06 ` Thomas Gleixner
2020-04-16 22:33 ` Luck, Tony
2020-04-17 9:48 ` Thomas Gleixner
2020-04-17 10:04 ` Thomas Gleixner
2020-04-17 17:06 ` Luck, Tony
2020-04-17 19:29 ` Thomas Gleixner
2020-04-17 19:56 ` Luck, Tony
2020-04-17 20:48 ` Thomas Gleixner
2020-04-17 21:07 ` Thomas Gleixner
2020-04-17 21:19 ` Luck, Tony
2020-04-17 22:18 ` Thomas Gleixner
2020-04-18 4:15 ` Xiaoyao Li
2020-04-18 4:35 ` Sean Christopherson
2020-04-18 9:27 ` Thomas Gleixner
2020-04-18 10:54 ` [tip: x86/urgent] " tip-bot2 for Tony Luck
2020-04-16 20:57 ` Tony Luck [this message]
2020-04-18 10:54 ` [tip: x86/urgent] x86/split_lock: Add Tremont family CPU models tip-bot2 for Tony Luck
2020-04-16 21:35 ` [PATCH 0/3] Split lock enumeration cleanup and fixes Thomas Gleixner
2020-04-16 21:39 ` Luck, Tony
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