Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755897AbYAYEmR (ORCPT ); Thu, 24 Jan 2008 23:42:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753273AbYAYEmD (ORCPT ); Thu, 24 Jan 2008 23:42:03 -0500 Received: from gw.goop.org ([64.81.55.164]:49958 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753241AbYAYEmB (ORCPT ); Thu, 24 Jan 2008 23:42:01 -0500 Message-ID: <47996895.3010703@goop.org> Date: Thu, 24 Jan 2008 20:41:57 -0800 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: "Eric W. Biederman" CC: "H. Peter Anvin" , Ian Campbell , Ingo Molnar , =?ISO-8859-1?Q?Mika_Penttil=E4?= , linux-kernel@vger.kernel.org, Thomas Gleixner , Ingo Molnar Subject: Re: [PATCH] x86: Construct 32 bit boot time page tables in native format. References: <1200758937-22386-2-git-send-email-ijc@hellion.org.uk> <479634A9.1090908@zytor.com> <1201031325.15491.66.camel@cthulhu.hellion.org.uk> <47964B7B.9000905@zytor.com> <20080122203611.GA12892@elte.hu> <1201121530.30671.15.camel@cthulhu.hellion.org.uk> <4797E487.8010108@goop.org> <1201167544.30671.64.camel@cthulhu.hellion.org.uk> <47990BDC.4070008@zytor.com> <479912B0.2080506@goop.org> <479913BA.8000506@zytor.com> <47991809.9060903@goop.org> <47991A6C.8060007@zytor.com> <479921F5.9020902@goop.org> <479922D0.3010708@zytor.com> <4799248F.9080404@goop.org> <47992710.2060108@zytor.com> <47992948.60308@goop.org> <47992A3B.7000607@zytor.com> <47992DD9.8060604@goop.org> <47992F31.1070705@zytor.com> In-Reply-To: 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 Content-Length: 704 Lines: 20 Eric W. Biederman wrote: > Note. I don't believe we use either trampoline (cpu startup or acpi wakeup) > in the hypervisor case (esp Xen). So we should be able to completely ignore > Xen and do the memcpy of pgd entries. > Indeed. The alias mapping can be set up in native_pagetable_setup_done() and needn't involve Xen at all. > I expect Xen gives us other cpus already in protected mode (which is overall > the sane thing to do). Quite so. J -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/