From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932340AbWEHOxT (ORCPT ); Mon, 8 May 2006 10:53:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932341AbWEHOxT (ORCPT ); Mon, 8 May 2006 10:53:19 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:24199 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S932340AbWEHOxS (ORCPT ); Mon, 8 May 2006 10:53:18 -0400 Subject: Re: How to read BIOS information From: Arjan van de Ven To: Madhukar Mythri Cc: linux-kernel@vger.kernel.org In-Reply-To: <445F5228.7060006@wipro.com> References: <445F5228.7060006@wipro.com> Content-Type: text/plain Date: Mon, 08 May 2006 16:53:13 +0200 Message-Id: <1147099994.2888.32.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2006-05-08 at 19:44 +0530, Madhukar Mythri wrote: > Hi, > Im new to this group. > I want to get some information from BIOS. i.e i want to know whether > Hyperthreading is Enabled/Disabled(as per BIOS settings) from an user > applications program. there is no standard way to do this. You can use /proc/cpuinfo to see if the kernel found ht'd processors. But that's the best you can do. (well you could grovel through the acpi tables just like the kernel does, but you really don't want to do that from userspace)