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

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Message-ID: <4FE25DF9.2020305@zytor.com>
Date:	Wed, 20 Jun 2012 16:34:17 -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 06/20/2012 04:32 PM, Borislav Petkov wrote:
> 
> Which means that
> 
> static enum ucode_state request_microcode_fw(int cpu, struct device *device)
> {
>         char name[30];
> 
> 	...
> 
>         sprintf(name, "intel-ucode/%02x-%02x-%02x",
>                 c->x86, c->x86_model, c->x86_mask);
> 
> needs to be changed to the name of the microcode blob you guys use for
> distributing and we can drop the OLD INTERFACE and there'll be no need
> for userspace tools doing anything with the ucode patches.
> 

Except you still need to re-poke it when you have a new microcode
blob... so what was gained by all this churn?

	-hpa
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