From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:52403)
	by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <pl@kamp.de>)
	id 1Vb7W6-0002YH-UH
	for qemu-devel@nongnu.org; Tue, 29 Oct 2013 07:31:31 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <pl@kamp.de>) id 1Vb7Vx-0000eL-V3
	for qemu-devel@nongnu.org; Tue, 29 Oct 2013 07:31:22 -0400
Received: from mx.ipv6.kamp.de ([2a02:248:0:51::16]:40206 helo=mx01.kamp.de)
	by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <pl@kamp.de>)
	id 1Vb7Vx-0000dn-JJ
	for qemu-devel@nongnu.org; Tue, 29 Oct 2013 07:31:13 -0400
Message-ID: <526F9C86.8060200@kamp.de>
Date: Tue, 29 Oct 2013 12:31:18 +0100
From: Peter Lieven <pl@kamp.de>
MIME-Version: 1.0
References: <526F8457.5040907@kamp.de> <20131029111324.GA18289@redhat.com>
	<20131029112659.GB15657@redhat.com>
In-Reply-To: <20131029112659.GB15657@redhat.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] Prohibit Windows from running in QEMU
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Gleb Natapov <gleb@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

On 29.10.2013 12:26, Gleb Natapov wrote:
> On Tue, Oct 29, 2013 at 01:13:24PM +0200, Michael S. Tsirkin wrote:
>> On Tue, Oct 29, 2013 at 10:48:07AM +0100, Peter Lieven wrote:
>>> Hi all,
>>>
>>> this question might seem a bit weird, but does anyone see a good way to avoid
>>> that Windows is able to boot inside qemu?
>>>
>>> We have defined several profiles for different operation systems and I want
>>> to avoid that someone chooses Linux and then installs Windows within
>>> a VM. Reason is licensing.
>>>
>>> Thanks,
>>> Peter
>> - create a device
>> - write a linux driver
>> - if driver is not enabled crash guest
>>
> For how long to wait before a crash?
I would not like to alter the software in the guest anyway. If this would be required
I could force a Linux version that would search for the alternate KVM signature
in the cpuid leaf.

Peter