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

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Date:	Mon, 17 Dec 2012 14:47:17 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"H. Peter Anvin" <hpa@...ux.intel.com>,
	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>,
	"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

On Sun, Dec 16, 2012 at 12:50 AM, Yinghai Lu <yinghai@...nel.org> wrote:
> On Sat, Dec 15, 2012 at 9:17 PM, Yinghai Lu <yinghai@...nel.org> wrote:
>> On Sat, Dec 15, 2012 at 6:09 PM, Yinghai Lu <yinghai@...nel.org> wrote:
>>> On Sat, Dec 15, 2012 at 1:40 PM, H. Peter Anvin <hpa@...or.com> wrote:
>>>> On 12/15/2012 12:55 PM, Yinghai Lu wrote:
>>>>>
>>>>> BTW, did you look at smp boot problem with early_level4_pgt version?
>>>>
>>>>
>>>> No, I have been busy with non-Linux stuff today.
>>>>
>>>
>>> ok, i sorted it out. I will split it to small pieces and post them.
>>
>> I updated for-x86-boot branch with it, and it is based on
>> linus:master
>> tip:x86/mm
>> tip:x86/urgent
>> tip:x86/mm2.
>>
>> also attach 7 new ones are just added to that branch.
>>
> just updated the branch to fix compiling problem that was found by
> Fengguang's kbuild test robot.
>
> git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git
> for-x86-boot

Peter, can you check that branch again?

I moved the early_trap_init after init_mem_mapping.
so for 64bit native, init_mem_mapping will setup page table for ram from blank.
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