Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030568AbWAGTpb (ORCPT ); Sat, 7 Jan 2006 14:45:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030567AbWAGTpb (ORCPT ); Sat, 7 Jan 2006 14:45:31 -0500 Received: from ebiederm.dsl.xmission.com ([166.70.28.69]:65237 "EHLO ebiederm.dsl.xmission.com") by vger.kernel.org with ESMTP id S1030568AbWAGTpa (ORCPT ); Sat, 7 Jan 2006 14:45:30 -0500 To: yhlu Cc: Andi Kleen , Vivek Goyal , Fastboot mailing list , linux kernel mailing list , Morton Andrew Morton Subject: Re: Inclusion of x86_64 memorize ioapic at bootup patch References: <6F7DA19D05F3CF40B890C7CA2DB13A42030949CB@ssvlexmb2.amd.com> <86802c440601061832m4898e20fw4c9a8360e85cfa17@mail.gmail.com> <86802c440601062238r1b304cd4j2d9c8e14a8324618@mail.gmail.com> <86802c440601062320r597d6970i3b120ec90f96abce@mail.gmail.com> <86802c440601070143v44ee9f4dua2dcef2a536d4c73@mail.gmail.com> <86802c440601071136n14a0851we97f6db04f940d68@mail.gmail.com> From: ebiederm@xmission.com (Eric W. Biederman) Date: Sat, 07 Jan 2006 12:44:17 -0700 In-Reply-To: <86802c440601071136n14a0851we97f6db04f940d68@mail.gmail.com> (yhlu.kernel@gmail.com's message of "Sat, 7 Jan 2006 11:36:31 -0800") Message-ID: User-Agent: Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 972 Lines: 29 yhlu writes: > MPTABLE in LinuxBIOS is put from 0x20, if the system has too many cpu > and devices (slots) the mptable will get bigger than 0x464, so it > will use 0x40:67.... Then you or someone moved it. The base in low memory was originally at 0x500, to avoid just these kinds of problems. > We need to put mptable to [0xf0000:0x100000] together with acpi > tables. Or move it up a few bytes. > and if it is bigger than 64k, then we have to put it on special > postion ...from 1K, and pass the posstion of mptable to the kernel via > command line. > > I will update the code in LinuxBIOS. Thanks. It is always a good idea not to assign legacy regions of the address space new meanings. Eric - 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/