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Date: Tue, 29 Jul 2008 08:31:39 +0300
From: Gleb Natapov <gleb@qumranet.com>
Message-ID: <20080729053139.GL3196@minantech.com>
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Subject: [Qemu-devel] Re: [PATCH 1/3]: vmware backdoor interface fix
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To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Chris Lalancette <clalance@redhat.com>, qemu-devel@nongnu.org

On Mon, Jul 28, 2008 at 02:51:36PM -0500, Anthony Liguori wrote:
> But if we're going to support a -uuid option, then I don't want it to  
> only work with the backdoor interface.  It should be plumbed through to  
> the SMBIOS tables because this is what users are going to expect.
>
This is exactly what's happening now. BOCHS BIOS adds UUID to SMBIOS
table. You can see UUID that you provide on command line by running
"dmidecode | grep UUID" in a Linux guest. If you worry that UUID
backdoor is accessible from a guest then we can make it one shot
i.e disable it after first query.

> However, we should not be using the backdoor interface as a  
> communications mechanism between QEMU and the Bochs BIOS.
>
OK. What about applying these patches (I can resend them if needed):
http://lists.gnu.org/archive/html/qemu-devel/2008-06/msg00443.html
http://lists.gnu.org/archive/html/qemu-devel/2008-06/msg00444.html
http://lists.gnu.org/archive/html/qemu-devel/2008-06/msg00446.html

They add -uuid command line option, but don't plumb UUID into the BIOS.
We will figure out later how to pass it there.

--
			Gleb.