Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754269AbaBQTnE (ORCPT ); Mon, 17 Feb 2014 14:43:04 -0500 Received: from terminus.zytor.com ([198.137.202.10]:32849 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754221AbaBQTnC (ORCPT ); Mon, 17 Feb 2014 14:43:02 -0500 Message-ID: <530265A3.3020302@zytor.com> Date: Mon, 17 Feb 2014 11:40:19 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Thomas Renninger CC: Thomas Gleixner , Conrad Kostecki , "linux-kernel@vger.kernel.org" , "x86@kernel.org" , "mingo@redhat.com" , "Rafael J. Wysocki" , devel@acpica.org Subject: Re: AW: AW: [PATCH] x86: HPET force enable for Soekris net6501 References: <4729ad4b8d3342c1b0e29fefe4b04d6a@DB4PR04MB265.eurprd04.prod.outlook.com> <1678556.oPQNyVF84j@skinner> <53025956.40505@zytor.com> <4233973.R9Tf84J4Ne@skinner> In-Reply-To: <4233973.R9Tf84J4Ne@skinner> X-Enigmail-Version: 1.6 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 On 02/17/2014 11:25 AM, Thomas Renninger wrote: > On Monday, February 17, 2014 10:47:50 AM H. Peter Anvin wrote: >> On 02/17/2014 10:23 AM, Thomas Renninger wrote: >>> Easiest I can think of instead of trying to modify RSDP or similar, is >>> to still pass the tables via unzipped, glued cpio which the kernel >>> can access early. The same way it is done for current ACPI table >>> overriding >>> and early microcode passing. >> >> We shouldn't *need* an RSDP and RSDT/XSDT, though, since all they are >> are pointers to the actual tables. Rather than hacking around it we >> should probably just fix the fundamental problem. > > That is what I described. > If something similar what I wrote gets implemented, you can simply > add ACPI tables to initrd as described here: > Documentation/acpi/initrd_table_override.txt > and if BIOS already provides them they get overridden, otherwise > they get added. > Right, that was the idea. Thomas Gleixner said it didn't work. -hpa -- 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/