From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030820AbXEDPxB (ORCPT ); Fri, 4 May 2007 11:53:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030878AbXEDPxB (ORCPT ); Fri, 4 May 2007 11:53:01 -0400 Received: from terminus.zytor.com ([192.83.249.54]:43627 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030820AbXEDPxA (ORCPT ); Fri, 4 May 2007 11:53:00 -0400 Message-ID: <463B56A0.7090805@zytor.com> Date: Fri, 04 May 2007 08:52:00 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.0 (X11/20070419) MIME-Version: 1.0 To: "Eric W. Biederman" CC: Rusty Russell , Andi Kleen , Chris Wright , Jeremy Fitzhardinge , Zachary Amsden , Andrew Morton , Linus Torvalds , lkml - Kernel Mailing List Subject: Re: [RFC PATCH 1/3] Replace paravirt_probe with "platform type" boot header field References: <1178283582.23670.67.camel@localhost.localdomain> <1178288329.23670.86.camel@localhost.localdomain> In-Reply-To: X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Eric W. Biederman wrote: > > Unlikely. Unless we expect that this offset will come in non-zero. > You might have to worry about that. Historically, the "zero-page" was really just the setup code overwritten, and it's still true for a big chunk of it. One of the major changes in my setup code rewrite is to start out with an all-zero chunk of memory for this. -hpa