linux-kernel - Re: [PATCH V3 4/4] microcode/x86/amd: early microcode patch loading support for AMD

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Message-ID: <20130531042649.GA4488@khazad-dum.debian.net>
Date:	Fri, 31 May 2013 01:26:49 -0300
From:	Henrique de Moraes Holschuh <hmh@....eng.br>
To:	Jacob Shin <jacob.shin@....com>
Cc:	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
	Fenghua Yu <fenghua.yu@...el.com>,
	Andreas Herrmann <herrmann.der.user@...glemail.com>,
	Borislav Petkov <bp@...en8.de>, Joe Perches <joe@...ches.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 4/4] microcode/x86/amd: early microcode patch loading
 support for AMD

On Thu, 30 May 2013, Jacob Shin wrote:
>  mkdir initrd
>  cd initrd
> -mkdir kernel
> -mkdir kernel/x86
> -mkdir kernel/x86/microcode
> -cp ../microcode.bin kernel/x86/microcode/GenuineIntel.bin
> -find .|cpio -oc >../ucode.cpio
> +mkdir -p kernel/x86/microcode
> +cp ../microcode.bin kernel/x86/microcode/GenuineIntel.bin (or AuthenticAMD.bin)

Can I just 
'cat /lib/firmware/amd-ucode/*bin >kernel/x86/microcode/AuthenticAMD.bin' 
to get a valid microcode container for all amd processors?

The answer for Intel is "yes".  I sure hope it is the same for AMD...

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
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