Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758256AbZABQVn (ORCPT ); Fri, 2 Jan 2009 11:21:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756755AbZABQVe (ORCPT ); Fri, 2 Jan 2009 11:21:34 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:43221 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754746AbZABQVd (ORCPT ); Fri, 2 Jan 2009 11:21:33 -0500 Date: Fri, 2 Jan 2009 17:21:20 +0100 From: Ingo Molnar To: Jaswinder Singh Rajput Cc: Valdis.Kletnieks@vt.edu, Bryan Donlan , Ingo Brueckl , linux-kernel@vger.kernel.org, "H. Peter Anvin" , Thomas Gleixner Subject: Re: x86 (Linux Tiny): configure out support for some processors Message-ID: <20090102162120.GG1180@elte.hu> References: <495d2974@wupperonline.de> <3e8340490901012119i40971452q9f938702e58d7532@mail.gmail.com> <3f9a31f40901012159l255b95a8he41a341f36ebc54e@mail.gmail.com> <20090102093801.GD1975@elte.hu> <3f9a31f40901020710h508bbfbch3d7ccd6f4898ea03@mail.gmail.com> <11444.1230910752@turing-police.cc.vt.edu> <3f9a31f40901020813t136ad2ceif1092f312866a0ce@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3f9a31f40901020813t136ad2ceif1092f312866a0ce@mail.gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1516 Lines: 40 * Jaswinder Singh Rajput wrote: > On Fri, Jan 2, 2009 at 9:09 PM, wrote: > > On Fri, 02 Jan 2009 20:40:16 +0530, Jaswinder Singh Rajput said: > > > >> If I know what is my CPU there is no point for supporting all related > >> CPUs in my kernel. > > > > EMBEDDED is for a large assortment of things, all of which are of the form: > > > > General users won't want to change Y, but if I know I don't need Y, there is > > no point in supporting Y in the kernel. > > > > On 64 bit AMD machine I was getting : > [ 0.000000] KERNEL supported cpus: > [ 0.000000] Intel GenuineIntel > [ 0.000000] AMD AuthenticAMD > [ 0.000000] Centaur CentaurHauls > > By using the following patch I get rid of extra CPU support and also > reduces size of the kernel. So you want to save kernel size by making less generic kernels tailored to a single box [yours in this case] - basically embedding the kernel on it? > Let me know why should I choose EMBEDDED option ? I know I am not using > Embbeded machine and I do not need embbeded features on my machine. > [...] that is what CONFIG_EMBEDDED=y means in broad terms: "make the kernel more specific [more embedded] to a particular hw/sw combination". Ingo -- 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/