From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754982AbYA1UDu (ORCPT ); Mon, 28 Jan 2008 15:03:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750828AbYA1UDm (ORCPT ); Mon, 28 Jan 2008 15:03:42 -0500 Received: from gw.goop.org ([64.81.55.164]:54711 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750813AbYA1UDl (ORCPT ); Mon, 28 Jan 2008 15:03:41 -0500 Message-ID: <479E3519.4070105@goop.org> Date: Mon, 28 Jan 2008 12:03:37 -0800 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: "H. Peter Anvin" CC: Pavel Machek , "Rafael J. Wysocki" , Ingo Molnar , Ian Campbell , =?ISO-8859-1?Q?Mika_Penttil=E4?= , linux-kernel@vger.kernel.org, Thomas Gleixner , Ingo Molnar , "Eric W. Biederman" Subject: Re: [PATCH] x86: Construct 32 bit boot time page tables in native format. References: <1201167544.30671.64.camel@cthulhu.hellion.org.uk> <200801252302.52164.rjw@sisk.pl> <20080128150022.GE27928@elte.hu> <200801281625.45165.rjw@sisk.pl> <20080128194017.GA4481@ucw.cz> <479E3248.40409@zytor.com> In-Reply-To: <479E3248.40409@zytor.com> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org H. Peter Anvin wrote: > and we already have to have code to synchronize the PGDs on !PAE and > the PMDs on Xen (although that was supposedly getting fixed). No, I don't have any plans there. Xen will continue to require non-shared kernel pmd, at least for a 32-bit host. I think the point is that nothing that requires an identity mapping will work under Xen anyway, so Xen just doesn't care about this case. J