Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755091AbZFETTR (ORCPT ); Fri, 5 Jun 2009 15:19:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752247AbZFETTB (ORCPT ); Fri, 5 Jun 2009 15:19:01 -0400 Received: from hera.kernel.org ([140.211.167.34]:60496 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752015AbZFETTA (ORCPT ); Fri, 5 Jun 2009 15:19:00 -0400 Subject: Re: [PATCH -tip] x86: cpu/proc.c adding extended_cpuid_level for /proc/cpuinfo From: Jaswinder Singh Rajput To: "H. Peter Anvin" Cc: Borislav Petkov , Ingo Molnar , x86 maintainers , LKML In-Reply-To: <4A09A688.6080603@zytor.com> References: <1242112482.3283.1.camel@localhost.localdomain> <20090512133950.GA15474@aftab> <1242136177.14832.0.camel@ht.satnam> <20090512141027.GA19143@aftab> <4A09A688.6080603@zytor.com> Content-Type: text/plain Date: Sat, 06 Jun 2009 00:50:06 +0530 Message-Id: <1244229606.2507.6.camel@ht.satnam> Mime-Version: 1.0 X-Mailer: Evolution 2.24.5 (2.24.5-1.fc10) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 869 Lines: 27 On Tue, 2009-05-12 at 09:40 -0700, H. Peter Anvin wrote: > Borislav Petkov wrote: > >>> > >> why we need cpuid_level ? > > > > It is already visible in userspace. I think you've got an answer to a > > very similar question already: > > > > http://marc.info/?l=linux-kernel&m=124206571628464 > > > > extended_cpuid_level should be motivated, but probably does make sense. > It hardly "completes" /proc/cpuinfo; especially if you consider that > there are at least three additional ranges in wide use (two used by a > single vendor only, and the third by virtualization software.) > So how can we complete it. -- JSR -- 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/