From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754723AbXD1UsP (ORCPT ); Sat, 28 Apr 2007 16:48:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754775AbXD1UsP (ORCPT ); Sat, 28 Apr 2007 16:48:15 -0400 Received: from ebiederm.dsl.xmission.com ([166.70.28.69]:45308 "EHLO ebiederm.dsl.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754723AbXD1UsN (ORCPT ); Sat, 28 Apr 2007 16:48:13 -0400 From: ebiederm@xmission.com (Eric W. Biederman) To: "H. Peter Anvin" Cc: Jeff Garzik , Andi Kleen , patches@x86-64.org, Vivek Goyal , linux-kernel@vger.kernel.org Subject: Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage References: <20070428758.455116000@suse.de> <20070428175909.1D09D151CA@wotan.suse.de> <46338D72.70402@garzik.org> <4633B0BB.6080600@zytor.com> Date: Sat, 28 Apr 2007 14:46:18 -0600 In-Reply-To: <4633B0BB.6080600@zytor.com> (H. Peter Anvin's message of "Sat, 28 Apr 2007 13:38:19 -0700") Message-ID: User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org "H. Peter Anvin" writes: > Eric W. Biederman wrote: >> >> The boot protocol change is in 2.6.21 for arch/i386. >> >> HPA looked at it a while ago. >> >> All it does is set a flag that tells a bootloader. >> "Hey. I can run when loaded a non-default address, and this is what >> you have to align me to." >> >> All relocation processing happens in the kernel itself. >> >> So it is all pretty trivial. >> > > Indeed. We *did* find some problems with Grub with the early versions, > those were addressed. We found some failures that weren't root caused so we went to this more conservative version. RHEL5 is actually shipping the original version of these patches if I recall correctly. Eric