From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267605AbUHPMzZ (ORCPT ); Mon, 16 Aug 2004 08:55:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267601AbUHPMzY (ORCPT ); Mon, 16 Aug 2004 08:55:24 -0400 Received: from pD951EB5B.dip.t-dialin.net ([217.81.235.91]:12306 "EHLO sigma.witten.lan") by vger.kernel.org with ESMTP id S267609AbUHPMzF (ORCPT ); Mon, 16 Aug 2004 08:55:05 -0400 Message-ID: <4120AF41.4050400@gentoo.org> Date: Mon, 16 Aug 2004 14:57:37 +0200 From: Danny van Dyk User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; de-AT; rv:1.7) Gecko/20040625 X-Accept-Language: de, en-us, en MIME-Version: 1.0 To: richard.brunner@amd.com Cc: ak@muc.de, linux-kernel@vger.kernel.org Subject: Re: [RFC] Microcode Update Driver for AMD K8 CPUs References: In-Reply-To: X-Enigmail-Version: 0.84.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org richard.brunner@amd.com schrieb: >>Danny van Dyk writes: >>>I recently found some piece of code [1] to perform a microcode update >>>on AMD's K8 CPUs. It included some update blocks hardcoded into the >>>module. >>Several people found this code (including me). But I don't think >>it's a good idea right now to merge because it is better to leave >>these things to the BIOS. It's unlikely that AMD will regularly >>release "open" microcode updates anyways, and moving them >>between BIOSes seems a bit dangerous to me (often you likely >>need to change some magic MSRs too or you could have some >>side effects). Overall it seems to be too dangerous to >>do in a standard kernel. >>Also I suspect the driver won't work very well on SMP. >>-Andi > As usual, Andi is absolutely correct. > -Rich Brunner, AMD Fellow Sigh. Well, that makes two *strong* votes against it. Nevertheless, it's been a nice experience to work on that code. Rich: Your CPUs are great ;-) Andi: Can you explain to me, why you think that the module would not work on SMP ? I don't know if this is still on topic: should we discuss this off-list ? Vielleicht auf Deutsch *G ? Danny -- Danny van Dyk Gentoo/AMD64 Developer kugelfang@gentoo.org