Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752647AbaBNVQk (ORCPT ); Fri, 14 Feb 2014 16:16:40 -0500 Received: from www.linutronix.de ([62.245.132.108]:44833 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752487AbaBNVQj (ORCPT ); Fri, 14 Feb 2014 16:16:39 -0500 Date: Fri, 14 Feb 2014 22:16:41 +0100 (CET) From: Thomas Gleixner To: "H. Peter Anvin" cc: Conrad Kostecki , "linux-kernel@vger.kernel.org" , "x86@kernel.org" , "mingo@redhat.com" , "Rafael J. Wysocki" , Thomas Renninger Subject: Re: AW: AW: [PATCH] x86: HPET force enable for Soekris net6501 In-Reply-To: <52FE7738.6040009@zytor.com> Message-ID: References: <4729ad4b8d3342c1b0e29fefe4b04d6a@DB4PR04MB265.eurprd04.prod.outlook.com> <52FE5683.6030708@zytor.com> <52FE5BB6.9070405@zytor.com> <1051d374173243b2828efcd21f60ac36@DB4PR04MB265.eurprd04.prod.outlook.com> <52FE5D91.6060005@zytor.com> <52FE5ED4.4040508@zytor.com> <52FE6DEF.1050607@zytor.com> <52FE7738.6040009@zytor.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 14 Feb 2014, H. Peter Anvin wrote: > On 02/14/2014 11:59 AM, Thomas Gleixner wrote: > > On Fri, 14 Feb 2014, H. Peter Anvin wrote: > >> On 02/14/2014 11:15 AM, Thomas Gleixner wrote: > >>> I'm fine with ACPI tables if we can provide simple means for embedded > >>> users to load one via grub or just attach it to the kernel image. > >> > >> That already exists, see Documentation/acpi/initrd_table_override.txt. > > > > That requires, that you have already ACPI tables. > > > > ACPI_SIG_RSDP cannot be overridden and that's the base table you need > > to get ACPI going in the first place. So we need support for that and > > probably for storing the tables at some non canonical place. > > > > Well, the RSDP and RSDT/XSDT are nothing but pointers to other tables, > so if explicitly overridden I'm not sure if one actually would need > them. That doesn't mean our current code will work without them, though. I tried once to overload all of the tables, but failed miserably in the ACPI dungeon. RSDP was the major pain point IIRC. Thanks, tglx -- 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/