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

From: H. Peter Anvin
Date: Fri Dec 14 2012 - 15:14:55 EST


What info are you referring to?

Yinghai Lu <yinghai@xxxxxxxxxx> wrote:

>On Fri, Dec 14, 2012 at 11:46 AM, H. Peter Anvin <hpa@xxxxxxxxx> 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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