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

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Date:	Fri, 14 Dec 2012 12:10:27 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yinghai@...nel.org>
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>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Stefano Stabellini <Stefano.Stabellini@...citrix.com>
Subject: Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU

What info are you referring to?

Yinghai Lu <yinghai@...nel.org> wrote:

>On Fri, Dec 14, 2012 at 11:46 AM, H. Peter Anvin <hpa@...or.com> wrote:
>>
>> That patch doesn't apply on top of the merge of x86/mm2 and
>> linus/master.  A trivial fixup is totally nonfunctional -- no
>> earlyprintk, just a null pointer death in setup_real_mode().
>
>just saw linus pulled efi fix that is touching real_mode/init.c.
>and there is something wrong with it.
>
>will check that...
>
>>
>> I suspect we don't need init_level4_pgt at all and should just plan
>to
>> get rid of it.  Is there any reason we can't just build the proper
>> kernel page table set in pagetable_init() and switch to it there?
>
>then how to pass the info to AP?

-- 
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