From: Fenghua Yu <fenghua.yu@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@redhat.com>,
Tony Luck <tony.luck@intel.com>
Cc: x86 <x86@kernel.org>, linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86/split_lock: Add Icelake microserver CPU model
Date: Thu, 14 May 2020 09:55:13 -0700 [thread overview]
Message-ID: <20200514165510.GH242333@romley-ivt3.sc.intel.com> (raw)
In-Reply-To: <1588290395-2677-1-git-send-email-fenghua.yu@intel.com>
On Thu, Apr 30, 2020 at 04:46:35PM -0700, Fenghua Yu wrote:
> Icelake microserver CPU supports split lock detection while it doesn't
> have the split lock enumeration bit in IA32_CORE_CAPABILITIES.
>
> Enumerate the feature by model number.
>
> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
> Reviewed-by: Tony Luck <tony.luck@intel.com>
> ---
> arch/x86/kernel/cpu/intel.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
> index a19a680542ce..b59bc4ab2425 100644
> --- a/arch/x86/kernel/cpu/intel.c
> +++ b/arch/x86/kernel/cpu/intel.c
> @@ -1135,6 +1135,7 @@ 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(ICELAKE_D, 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),
Hi, Thomas,
Any comment on this patch? Will you accept this patch?
Thanks.
-Fenghua
next prev parent reply other threads:[~2020-05-14 16:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-30 23:46 [PATCH] x86/split_lock: Add Icelake microserver CPU model Fenghua Yu
2020-05-14 16:55 ` Fenghua Yu [this message]
2020-05-14 18:35 ` [tip: x86/splitlock] " tip-bot2 for Fenghua Yu
2020-05-28 19:12 ` [tip: x86/splitlock] x86/split_lock: Add Icelake microserver and Tigerlake CPU models tip-bot2 for Fenghua Yu
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