linux-kernel - Re: [PATCH 1/3] x86, ucode-amd: Load ucode-patches once and not separately fo each CPU

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Date:	Thu, 12 Nov 2009 16:05:43 +0100
From:	Andreas Herrmann <herrmann.der.user@...glemail.com>
To:	Dmitry Adamushko <dmitry.adamushko@...il.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] x86, ucode-amd: Load ucode-patches once and not
 separately fo each CPU

On Tue, Nov 10, 2009 at 01:02:39PM +0100, Dmitry Adamushko wrote:
> 2009/11/10 Andreas Herrmann <herrmann.der.user@...glemail.com>:
> > This also implies that corresponding log messages, e.g.
> >
> >  platform microcode: firmware: requesting amd-ucode/microcode_amd.bin
> >
> > show up only once on module load and not when ucode is updated for
> > each CPU.
> 
> I like it.
> 
> One remark : should we perhaps provide a means of reloading the cached
> firmware?

I'll think about this.

> Or is the standard procedure to reload microcode.ko in case
> a new firmware file has been installed?

module reload will do so far.

(And I should ensure that microcode_amd is only provided if ucode
loader is compiled as module.)


Regards,
Andreas
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