Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754510Ab2FSP55 (ORCPT ); Tue, 19 Jun 2012 11:57:57 -0400 Received: from terminus.zytor.com ([198.137.202.10]:53678 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751508Ab2FSP5z (ORCPT ); Tue, 19 Jun 2012 11:57:55 -0400 Message-ID: <4FE0A160.9080103@zytor.com> Date: Tue, 19 Jun 2012 08:57:20 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1 MIME-Version: 1.0 To: Borislav Petkov CC: Peter Zijlstra , Henrique de Moraes Holschuh , LKML , x86 , Ingo Molnar , Andreas Herrmann , Dimitri Sivanich , Dmitry Adamushko , Greg Kroah-Hartman Subject: Re: [PATCH] x86, microcode: Make reload interface per system References: <20120615123749.GC6083@aftab.osrc.amd.com> <1339764161.2559.63.camel@twins> <20120615125240.GD6083@aftab.osrc.amd.com> <20120615165231.GA9169@aftab.osrc.amd.com> <20120619024639.GB6186@khazad-dum.debian.net> <4FDFF27C.5000205@zytor.com> <20120619051116.GB31591@aftab.osrc.amd.com> <1340093864.21745.6.camel@twins> <20120619102250.GA787@aftab.osrc.amd.com> <1340101568.21745.37.camel@twins> <20120619150619.GD1427@aftab.osrc.amd.com> In-Reply-To: <20120619150619.GD1427@aftab.osrc.amd.com> X-Enigmail-Version: 1.4.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 824 Lines: 23 On 06/19/2012 08:06 AM, Borislav Petkov wrote: > > Now we load the ucode driver very early if it is built-in (look at > printk timestamps): > > [ 3.651275] microcode: CPU0: patch_level=0x010000c4 > [ 3.664943] microcode: CPU1: patch_level=0x010000c4 > [ 3.670177] microcode: CPU2: patch_level=0x010000c4 > [ 3.675407] microcode: CPU3: patch_level=0x010000c4 > ... > > and then later, when we have userspace, we can use the reload thing to > re-request microcode. Which is also fine, I guess. > Right, although we can push it much, much earlier than that. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/