linux-kernel - Re: [PATCH v2 01/10] Documentation/x86: Early load microcode

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Message-ID: <50B90D05.2030002@zytor.com>
Date:	Fri, 30 Nov 2012 11:46:13 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Fenghua Yu <fenghua.yu@...el.com>
CC:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Asit K Mallick <asit.k.mallick@...el.com>,
	Tigran Aivazian <tigran@...azian.fsnet.co.uk>,
	Andreas Herrmann <andreas.herrmann3@....com>,
	Borislav Petkov <borislav.petkov@....com>,
	linux-kernel <linux-kernel@...r.kernel.org>, x86 <x86@...nel.org>
Subject: Re: [PATCH v2 01/10] Documentation/x86: Early load microcode

On 11/29/2012 05:47 PM, Fenghua Yu wrote:
> +
> +mkdir initrd
> +cd initrd
> +cp ../microcode.hex kernel/x86/microcode/GenuineIntel/microcode.hex
> +find .|cpio -oc >../ucode.cpio
> +cd ..
> +cat ucode.cpio /boot/initrd-3.5.0.img >/boot/initrd-3.5.0.ucode.img
> +
> +The generated /boot/initrd-3.5.0.ucode.img can be used as initrd file to load
> +microcode during early boot time.
> 

This is wrong; first of all, this refers to microcode.hex whereas the
patch refers to microcode.bin, and it misses the mandatory -H newc
option to cpio.

Could you update this bit, please?

	-hpa

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