linux-kernel - Re: [PATCH 00/11] x86/microcode: Early load microcode

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Message-ID: <20121002134602.GA5015@x1.osrc.amd.com>
Date:	Tue, 2 Oct 2012 15:46:02 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Jamie Gloudon <jamie.gloudon@...il.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	fenghua.yu@...el.com
Subject: Re: [PATCH 00/11] x86/microcode: Early load microcode

On Tue, Oct 02, 2012 at 09:11:38AM -0400, Jamie Gloudon wrote:
> My main interest was getting PEBS events support for perf on Intel SNB
> cpus. Loading the microcode at runtime was not going to work.
>
> However, thanks for pointing me in the right direction. I notice today
> this is not the case anymore from the thread below.
>
> http://marc.info/?l=linux-kernel&m=133905353211963&w=2

Yes, there's a perf callback from within the ucode driver to recheck
PEBS. This is in 3.6 so PEBS should work there with the required ucode
patch.

-- 
Regards/Gruss,
Boris.
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