From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758410AbYFPVzh (ORCPT ); Mon, 16 Jun 2008 17:55:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756402AbYFPVz2 (ORCPT ); Mon, 16 Jun 2008 17:55:28 -0400 Received: from gw.goop.org ([64.81.55.164]:38032 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756312AbYFPVz2 (ORCPT ); Mon, 16 Jun 2008 17:55:28 -0400 Message-ID: <4856E126.2040400@goop.org> Date: Mon, 16 Jun 2008 14:54:46 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: the arch/x86 maintainers CC: Yinghai Lu , Linux Kernel Mailing List Subject: [PATCH 1/3] xen: reserve Xen-specific memory in e820 map 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 Make sure that the start_info and pfn->mfn translation array are reserved. Signed-off-by: Jeremy Fitzhardinge Cc: Yinghai Lu --- arch/x86/xen/setup.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) =================================================================== --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -40,8 +40,21 @@ max_pfn = min(MAX_DOMAIN_PAGES, max_pfn); e820.nr_map = 0; + e820_add_region(0, LOWMEMSIZE(), E820_RAM); e820_add_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM); + + /* + * Reserve Xen bits: + * - mfn_list + * - xen_start_info + * See comment above "struct start_info" in + */ + e820_add_region(__pa(xen_start_info->mfn_list), + xen_start_info->pt_base - xen_start_info->mfn_list, + E820_RESERVED); + + sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); return "Xen"; }