From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44764) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z1yt6-0003OW-K1 for qemu-devel@nongnu.org; Mon, 08 Jun 2015 11:22:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z1yt3-0005dI-AQ for qemu-devel@nongnu.org; Mon, 08 Jun 2015 11:22:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:40738) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z1yt3-0005cY-5G for qemu-devel@nongnu.org; Mon, 08 Jun 2015 11:22:53 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id C2AD1B595D for ; Mon, 8 Jun 2015 15:22:52 +0000 (UTC) Date: Mon, 8 Jun 2015 17:22:49 +0200 From: "Michael S. Tsirkin" Message-ID: <20150608171921-mutt-send-email-mst@redhat.com> References: <1430133591-6197-1-git-send-email-ghammer@redhat.com> <1430133591-6197-5-git-send-email-ghammer@redhat.com> <556F2D51.2000203@redhat.com> <55759BB8.3010604@redhat.com> <55759C1B.7000905@redhat.com> <55759E0A.3090102@redhat.com> <55759EC2.5090802@redhat.com> <20150608135854.GC19157@redhat.com> <20150608165951-mutt-send-email-mst@redhat.com> <5575B20B.9000502@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5575B20B.9000502@redhat.com> Subject: Re: [Qemu-devel] [PATCH V15 4/5] i386: add a Virtual Machine Generation ID device List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: Gal Hammer , imammedo@redhat.com, qemu-devel@nongnu.org On Mon, Jun 08, 2015 at 05:17:31PM +0200, Paolo Bonzini wrote: > > > On 08/06/2015 17:01, Michael S. Tsirkin wrote: > > Are there applications that would actually use this? For microsoft this > > seems to be mostly driven by ActiveDirectory needs. > > It seems quite possible that applications solve the problem > > differently on Linux. > > I'm not aware of a different solution to the problem on Linux. > > Paolo Adding it by default for everyone still seems too aggressive. We had a ton of pain with pvpanic exactly because of a similar "can't hurt" approach. I think a better approach would be to merge the code in qemu, merge a linux driver. Once that's available, and some apps use it, enabling it by default will seem more reasonable. -- MST