Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU

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Subject: Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
From: Borislav Petkov <bp@xxxxxxxxx>
Date: Tue, 11 Dec 2012 18:06:06 +0100
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>, "Yu, Fenghua" <fenghua.yu@xxxxxxxxx>, "mingo@xxxxxxxxxx" <mingo@xxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "tglx@xxxxxxxxxxxxx" <tglx@xxxxxxxxxxxxx>, "hpa@xxxxxxxxxxxxxxx" <hpa@xxxxxxxxxxxxxxx>, "linux-tip-commits@xxxxxxxxxxxxxxx" <linux-tip-commits@xxxxxxxxxxxxxxx>
In-reply-to: <CAE9FiQUzHBb5SiEhfrOg7hFbuD1H1-7aXa0aTjhZ9tNqdrwGqw@mail.gmail.com>
Mail-followup-to: Borislav Petkov <bp@xxxxxxxxx>, Yinghai Lu <yinghai@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, "Yu, Fenghua" <fenghua.yu@xxxxxxxxx>, "mingo@xxxxxxxxxx" <mingo@xxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "tglx@xxxxxxxxxxxxx" <tglx@xxxxxxxxxxxxx>, "hpa@xxxxxxxxxxxxxxx" <hpa@xxxxxxxxxxxxxxx>, "linux-tip-commits@xxxxxxxxxxxxxxx" <linux-tip-commits@xxxxxxxxxxxxxxx>
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On Tue, Dec 11, 2012 at 09:00:55AM -0800, Yinghai Lu wrote:
> ok, then next question is how early it should be.
> 
> before early_cpu_init/early_identify_cpu
> 
> or just before check_bugs/identify_cpu

Read the code. It's in x86_64_start_kernel on 64-bit.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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Follow-Ups:
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: Yinghai Lu

References:
- RE: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: Yu, Fenghua
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: Yinghai Lu
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: H. Peter Anvin
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: Yinghai Lu
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: H. Peter Anvin
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: Yinghai Lu
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: Borislav Petkov
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: Yinghai Lu
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: H. Peter Anvin
- Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
  - From: Yinghai Lu

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