From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KNika-0002Oh-PQ for qemu-devel@nongnu.org; Tue, 29 Jul 2008 02:32:00 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KNikY-0002OL-JI for qemu-devel@nongnu.org; Tue, 29 Jul 2008 02:31:59 -0400 Received: from [199.232.76.173] (port=40263 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KNikY-0002OI-FS for qemu-devel@nongnu.org; Tue, 29 Jul 2008 02:31:58 -0400 Received: from mx20.gnu.org ([199.232.41.8]:57895) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1KNikX-0002s5-Ru for qemu-devel@nongnu.org; Tue, 29 Jul 2008 02:31:58 -0400 Received: from il.qumranet.com ([212.179.150.194]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1KNikW-0001YW-Uf for qemu-devel@nongnu.org; Tue, 29 Jul 2008 02:31:57 -0400 Date: Tue, 29 Jul 2008 09:31:53 +0300 From: Gleb Natapov Subject: Re: [Qemu-devel] Re: [PATCH 0/3]: Add UUID command-line option Message-ID: <20080729063153.GM3196@minantech.com> References: <488DDF8B.8020103@codemonkey.ws> <488DE142.1060100@redhat.com> <488DE1E0.1070005@codemonkey.ws> <488DE8D4.5020502@redhat.com> <20080728160215.GB23771@minantech.com> <488DF11D.7090100@codemonkey.ws> <20080728162828.GA14004@shareable.org> <488E17E0.6010701@codemonkey.ws> <20080728200039.GA19216@shareable.org> <488E2B43.3040303@codemonkey.ws> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <488E2B43.3040303@codemonkey.ws> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Anthony Liguori Cc: Chris Lalancette , qemu-devel@nongnu.org On Mon, Jul 28, 2008 at 03:25:39PM -0500, Anthony Liguori wrote: > Jamie Lokier wrote: >>> If you care to do this sort of work, you can certainly recompile the >>> BIOS. The source is there afterall. >>> >> >> Indeed, same goes for all the other QEMU options. The question is >> whether it's useful enough to have an option, or obscure enough not to. >> >> I'm inclined to think modifying ACPI tables is obscure, except >> perhaps for specific tweaks that some versions of Windows or Linux >> might need to run correctly, or to prevent them from using some >> hardware feature or other. >> > > In the future, it may be interesting to allow a precompiled ACPI table > to be loaded and specified as part of a machine configuration file. I > think it makes a lot more sense if you can actually change the machine > layout without recompiling. > We don't need to change existing ACPI tables (well except of OEMID/OEMTableID). We need to have a way to provide additional ACPI tables. This is to support Windows Vista OEM activation, so blame Microsoft for that :). Actually the need to provide additional ACPI tables to BIOS exists on real HW too. See following link for a tutorial how to do it for Award BIOS: http://www.mydigitallife.info/2007/02/18/improved-way-to-add-slic-slp-20-table-into-bios-acpi-to-activate-windows-vista-oem/ -- Gleb.