From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754538AbYINOmg (ORCPT ); Sun, 14 Sep 2008 10:42:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751794AbYINOm1 (ORCPT ); Sun, 14 Sep 2008 10:42:27 -0400 Received: from gw.goop.org ([64.81.55.164]:34042 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751470AbYINOm1 (ORCPT ); Sun, 14 Sep 2008 10:42:27 -0400 Message-ID: <48CD22CF.9030900@goop.org> Date: Sun, 14 Sep 2008 07:42:23 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.16 (X11/20080723) MIME-Version: 1.0 To: Ingo Molnar CC: roberto@unbit.it, jeremy@xensource.com, linux-kernel@vger.kernel.org, Mirko Iannella , Alex Nixon Subject: [PATCH] xen: Fix for xen guest with mem > 3.7G References: <1221333418.6036.9.camel@sirius> <48CC2C12.4080302@goop.org> <20080914132104.GB32106@elte.hu> In-Reply-To: <20080914132104.GB32106@elte.hu> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PFN_PHYS() can truncate large addresses unless its passed a suitable large type. This is fixed more generally in the patch series introducing phys_addr_t, but we need a short-term fix to solve a regression. Signed-off-by: Jeremy Fitzhardinge Cc: roberto@unbit.it --- arch/x86/xen/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) =================================================================== --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -42,7 +42,7 @@ e820.nr_map = 0; - e820_add_region(0, PFN_PHYS(max_pfn), E820_RAM); + e820_add_region(0, PFN_PHYS((u64)max_pfn), E820_RAM); /* * Even though this is normal, usable memory under Xen, reserve