From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1L5iJx-0004rc-BO for qemu-devel@nongnu.org; Thu, 27 Nov 2008 09:58:21 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1L5iJw-0004rI-Hw for qemu-devel@nongnu.org; Thu, 27 Nov 2008 09:58:20 -0500 Received: from [199.232.76.173] (port=52340 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1L5iJw-0004rA-AT for qemu-devel@nongnu.org; Thu, 27 Nov 2008 09:58:20 -0500 Received: from mx1.redhat.com ([66.187.233.31]:37370) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1L5iJv-0001yw-T3 for qemu-devel@nongnu.org; Thu, 27 Nov 2008 09:58:20 -0500 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id mAREwJdE006812 for ; Thu, 27 Nov 2008 09:58:19 -0500 Received: from file.fab.redhat.com (file.fab.redhat.com [10.33.63.6]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id mAREwHTE021389 for ; Thu, 27 Nov 2008 09:58:18 -0500 Received: from file.fab.redhat.com (localhost.localdomain [127.0.0.1]) by file.fab.redhat.com (8.13.1/8.13.1) with ESMTP id mAREwHgR005259 for ; Thu, 27 Nov 2008 14:58:17 GMT Received: (from berrange@localhost) by file.fab.redhat.com (8.13.1/8.13.1/Submit) id mAREwHQO005255 for qemu-devel@nongnu.org; Thu, 27 Nov 2008 14:58:17 GMT Date: Thu, 27 Nov 2008 14:58:17 +0000 From: "Daniel P. Berrange" Subject: Re: [Qemu-devel] qemu version updates break Windows activation Message-ID: <20081127145817.GK14154@redhat.com> References: <492EB0EA.50103@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <492EB0EA.50103@redhat.com> Reply-To: "Daniel P. Berrange" , qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On Thu, Nov 27, 2008 at 04:38:34PM +0200, Avi Kivity wrote: > Frederik Himpe wrote: > >Every time qemu/kvm is updated, the version strings in the virtual > >hardware change, which breaks an activated windows installation in qemu. > >Windows thinks it's running on other hardware, and requires manual re- > >activation by phone. > > > >Could the version strings please be made optional in the hardware? > > > > > > Perhaps we should switch the version strings not to include the qemu > version, but instead carry their own version numbers, which would bump > on on incompatible change (presumably, never). This sounds like a good idea. If a guest really badly wants to know the QEMU version number, it is already exposed via the SMBIOS data tables, so its redundant to include in the per-device info too. NB, this doesn't just impact Windows - when configuring evdev in Linux it is desirable to configure it to match based on device name, rather than the unstable path /dev/input/event3. This is only possible if the device name is stable though, so removing the QEMU version number would help make more reliable Linux Xorg configs too. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|