From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751979Ab2G0HeU (ORCPT ); Fri, 27 Jul 2012 03:34:20 -0400 Received: from nat28.tlf.novell.com ([130.57.49.28]:49394 "EHLO nat28.tlf.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751113Ab2G0HeT convert rfc822-to-8bit (ORCPT ); Fri, 27 Jul 2012 03:34:19 -0400 Message-Id: <501260980200007800090E08@nat28.tlf.novell.com> X-Mailer: Novell GroupWise Internet Agent 12.0.0 Date: Fri, 27 Jul 2012 08:34:16 +0100 From: "Jan Beulich" To: "Ian Jackson" , "Konrad Rzeszutek Wilk" Cc: "xen-devel" , Subject: Re: [Xen-devel] [RFC PATCH] Boot PV guests with more than 128GB (v1) for 3.7 References: <1343335652-5659-1-git-send-email-konrad.wilk@oracle.com> In-Reply-To: <1343335652-5659-1-git-send-email-konrad.wilk@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>> On 26.07.12 at 22:47, Konrad Rzeszutek Wilk wrote: > 2). Allocate a new array, copy the existing P2M into it, > revector the P2M tree to use that, and return the old > P2M to the memory allocate. This has the advantage that > it sets the stage for using XEN_ELF_NOTE_INIT_P2M > feature. That feature allows us to set the exact virtual > address space we want for the P2M - and allows us to > boot as initial domain on large machines. And I would hope that the tools would get updated to recognize this note too, so that huge DomU-s would become possible as well. Jan