From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266519AbUHBNjD (ORCPT ); Mon, 2 Aug 2004 09:39:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266521AbUHBNjD (ORCPT ); Mon, 2 Aug 2004 09:39:03 -0400 Received: from delerium.kernelslacker.org ([81.187.208.145]:47239 "EHLO delerium.codemonkey.org.uk") by vger.kernel.org with ESMTP id S266519AbUHBNjA (ORCPT ); Mon, 2 Aug 2004 09:39:00 -0400 Date: Mon, 2 Aug 2004 14:37:46 +0100 From: Dave Jones To: Arjan van de Ven Cc: linux-kernel@vger.kernel.org Subject: Re: finding out the boot cpu number from userspace Message-ID: <20040802133746.GA27758@redhat.com> Mail-Followup-To: Dave Jones , Arjan van de Ven , linux-kernel@vger.kernel.org References: <20040802121635.GE14477@devserv.devel.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040802121635.GE14477@devserv.devel.redhat.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 02, 2004 at 02:16:35PM +0200, Arjan van de Ven wrote: > Hi, > > assuming cpu 0 is the boot cpu sounds fragile/incorrect, but for irqbalanced > I'd like to find out which cpu is the boot cpu, is there a good way of doing > so ? Parsing MP tables ? Don't know how well this holds up in a post-MP ACPI world though. x86info has some code for this already, which I stole from some other program I long since forgot about. Dave