From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753242Ab1JMHBE (ORCPT ); Thu, 13 Oct 2011 03:01:04 -0400 Received: from s15228384.onlinehome-server.info ([87.106.30.177]:45041 "EHLO mail.x86-64.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751678Ab1JMHBD (ORCPT ); Thu, 13 Oct 2011 03:01:03 -0400 Date: Thu, 13 Oct 2011 09:00:50 +0200 From: Borislav Petkov To: "H. Peter Anvin" Cc: Jeremy Fitzhardinge , Borislav Petkov , Konrad Rzeszutek Wilk , the arch/x86 maintainers , Tigran Aivazian , Xen Devel , Linux Kernel Mailing List , Jeremy Fitzhardinge , Ingo Molnar , Thomas Gleixner Subject: Re: [PATCH 0/3] x86/microcode: support for microcode update in Xen dom0 Message-ID: <20111013070050.GA501@aftab> References: <4E95E7FE.6050302@goop.org> <20111012194543.GD14966@aftab> <20111012204048.GA22260@phenom.oracle.com> <4E960746.90805@zytor.com> <20111012214013.GD28723@aftab> <4E96198F.4030906@zytor.com> <4E962581.2000605@goop.org> <4E9628D4.1000605@zytor.com> <4E962A27.4090509@goop.org> <4E962AE6.1060505@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4E962AE6.1060505@zytor.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 12, 2011 at 08:03:50PM -0400, H. Peter Anvin wrote: > On 10/12/2011 05:00 PM, Jeremy Fitzhardinge wrote: > > > > Presumably we'd want some way to make all possible microcode files > > available to the hypervisor/kernel so that there's no need to construct > > the bootloader config for a specific CPU vendor (or worse, CPU model). > > So that would need either some way of specifying multiple files, or a > > wrapper which can contain multiple files? > > > > I have been thinking a "bundle" format with a per-vendor header followed > by the microcode in the appropriate format for each vendor. Yes, makes sense. Keep it as simple as possible. -- Regards/Gruss, Boris. Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach GM: Alberto Bozzo Reg: Dornach, Landkreis Muenchen HRB Nr. 43632 WEEE Registernr: 129 19551