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

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Message-ID: <CAE9FiQUzHBb5SiEhfrOg7hFbuD1H1-7aXa0aTjhZ9tNqdrwGqw@mail.gmail.com>
Date:	Tue, 11 Dec 2012 09:00:55 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Borislav Petkov <bp@...en8.de>,
	"Yu, Fenghua" <fenghua.yu@...el.com>,
	"mingo@...nel.org" <mingo@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"hpa@...ux.intel.com" <hpa@...ux.intel.com>,
	"linux-tip-commits@...r.kernel.org" 
	<linux-tip-commits@...r.kernel.org>
Subject: Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update
 ucode on Intel's CPU

On Tue, Dec 11, 2012 at 8:48 AM, H. Peter Anvin <hpa@...or.com> wrote:
>
> It's not about "not working"... it is about "if the microcode isn't
> loaded early we have to disable features."

ok, then next question is how early it should be.

before early_cpu_init/early_identify_cpu

or just before check_bugs/identify_cpu

Yinghai
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