From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756177AbYJFXKW (ORCPT ); Mon, 6 Oct 2008 19:10:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752606AbYJFXKK (ORCPT ); Mon, 6 Oct 2008 19:10:10 -0400 Received: from gw.goop.org ([64.81.55.164]:55894 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752517AbYJFXKJ (ORCPT ); Mon, 6 Oct 2008 19:10:09 -0400 Message-ID: <48EA9AC3.1050603@goop.org> Date: Mon, 06 Oct 2008 16:09:55 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.16 (X11/20080919) MIME-Version: 1.0 To: Suresh Siddha CC: mingo@elte.hu, hpa@zytor.com, tglx@linutronix.de, arjan@linux.intel.com, venkatesh.pallipadi@intel.com, linux-kernel@vger.kernel.org Subject: Re: [patch 3/7] x86, cpa: make the kernel physical mapping initialization a two pass sequence References: <20080923210035.413932000@linux-os.sc.intel.com> <20080923211444.369122000@linux-os.sc.intel.com> <48EA798D.1090303@goop.org> In-Reply-To: <48EA798D.1090303@goop.org> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jeremy Fitzhardinge wrote: > As it is, I suspect it will take a non-trivial amount of work to > restore Xen with this code in place (touching this code is always > non-trivial). I haven't looked into it in depth yet, but there's a > few stand out "bad for Xen" pieces of code here. (And I haven't > tested 32-bit yet.) 32-bit Xen is OK with this patch. Reverting it restores 64-bit Xen. J