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Date: Mon, 25 Aug 2008 09:22:54 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: Re: [Qemu-devel] [PATCH 0/6] Add UUID command-line option
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To: qemu-devel@nongnu.org

Avi Kivity wrote:
> Blue Swirl wrote:
>> On 8/24/08, Avi Kivity <avi@qumranet.com> wrote:
>>   
>>
>> UUID can be used in all machines, so it would be nice if the interface
>> was same. I don't see much benefit in vmport compared to ROM solution.
>>
>>   
>
> Maybe UUID is generic but the vast majority of things that need to 
> communicate to qemu will be arch specific.

Because it's not an interface we control.  VMware automatically upgrades 
their tool chain and doesn't support backwards compatibility in their 
tools.  They're completely free to change the semantics of the interface.

This could really cause confusion within guests.  It's one thing to 
implement vmport based ops when there is existing guest software that we 
can get working but I think it's not a great idea to write new guest 
software that's QEMU specific using an interface that we have no control 
over.

Regards,

Anthony Liguori