linux-kernel - Re: [PATCH 2/2] x86, microcode: Make reload interface per system

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Message-ID: <4FE3E428.8080207@zytor.com>
Date:	Thu, 21 Jun 2012 20:19:04 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Borislav Petkov <bp@...64.org>
CC:	Henrique de Moraes Holschuh <hmh@....eng.br>,
	Peter Zijlstra <peterz@...radead.org>,
	"Yu, Fenghua" <fenghua.yu@...el.com>, X86-ML <x86@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Andreas Herrmann <andreas.herrmann3@....com>
Subject: Re: [PATCH 2/2] x86, microcode: Make reload interface per system

On 06/21/2012 07:56 PM, Borislav Petkov wrote:
>>
>> That is orthogonal.  Anyway, my only concern about the request_firmware
>> interface is that the timing will be inherently wrong.
> 
> Timing? Please elaborate.
> 

The request_firmware will happen as soon as the driver is loaded; with
the early microcode blob scheme the driver will need to be built in and
so the request_firmware will happen, redundantly, immediately...

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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