From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751300Ab1JMAE2 (ORCPT ); Wed, 12 Oct 2011 20:04:28 -0400 Received: from terminus.zytor.com ([198.137.202.10]:34855 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750818Ab1JMAE1 (ORCPT ); Wed, 12 Oct 2011 20:04:27 -0400 Message-ID: <4E962AE6.1060505@zytor.com> Date: Wed, 12 Oct 2011 17:03:50 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0) Gecko/20110927 Thunderbird/7.0 MIME-Version: 1.0 To: Jeremy Fitzhardinge CC: 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 References: <4E94E1E5.4070505@goop.org> <20111012101615.GA14966@aftab> <4E95D9E7.6090304@zytor.com> <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> In-Reply-To: <4E962A27.4090509@goop.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. -hpa