>>> On 14.06.19 at 18:23, <andrii.ani...@gmail.com> wrote:
> On 14.06.19 18:42, Jan Beulich wrote:
>>>>> On 14.06.19 at 17:11, <andrii.ani...@gmail.com> wrote:
>>> On 14.06.19 17:39, Julien Grall wrote:
>>>> After all they have exactly the same data...
>>>
>>> Yes, but normal guests should use only one interface.
>> 
>> I thought it had been clarified already that normal guests can very
>> well use both interfaces, just not both at the same time: Boot loader
>> and OS could disagree in this regard, as the prime example.
> 
> I missed "at the same time".
> 
> We may require existing runstate area unregistering if the system is aware 
> of it. But it is for the new interface.
> The old one has no documentation about the unregistering. The implicit way 
> is known to us, but not known to users.
> How to solve the clash?

And once again I'm not sure what to answer, considering that I've
already outlined a possible model (without any explicit unregistration).

Jan



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