From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755306AbWKMSNi (ORCPT ); Mon, 13 Nov 2006 13:13:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755307AbWKMSNh (ORCPT ); Mon, 13 Nov 2006 13:13:37 -0500 Received: from mx1.suse.de ([195.135.220.2]:43693 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S1755306AbWKMSNh (ORCPT ); Mon, 13 Nov 2006 13:13:37 -0500 From: Andi Kleen To: vgoyal@in.ibm.com Subject: Re: [RFC] [PATCH 10/16] x86_64: 64bit PIC ACPI wakeup Date: Mon, 13 Nov 2006 19:13:31 +0100 User-Agent: KMail/1.9.5 Cc: linux kernel mailing list , Reloc Kernel List , ebiederm@xmission.com, akpm@osdl.org, hpa@zytor.com, magnus.damm@gmail.com, lwang@redhat.com, dzickus@redhat.com, pavel@suse.cz, "Rafael J. Wysocki" References: <20061113162135.GA17429@in.ibm.com> <200611131822.44034.ak@suse.de> <20061113175947.GA13832@in.ibm.com> In-Reply-To: <20061113175947.GA13832@in.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200611131913.32073.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > This code (verify_cpu) is called while we are still in real mode. So it has > to be present in low 1MB. Now in trampoline has been designed to switch to > 64bit mode and then jump to the kernel hence kernel can be loaded anywhere > even beyond (4G). So if we move this code into say arch/x86_64/kernel/head.S > then we can't even call it. I didn't mean to call it. Just #include it from a common file -Andi