Re: RFC qdev path semantics

[Gerd Hoffmann <kraxel@redhat.com>]

   Hi,

>> Bus names are chosen by the system as follows:
>>
>> * If the driver of the parent device model provides a name, use that.
>>
>> * Else, if the parent device has id ID, use ID.NUM, where NUM is the bus
>>    number, counting from zero in creation order.
>>
>> * Else, use TYPE.NUM, where TYPE is derived from the bus type, and NUM
>>    is the bus number, as above.
>>
>> ### Paul proposes to drop ID.NUM.
>>
>> ### Paul proposes to either drop TYPE.NUM (and require drivers to
>>      provide bus names), or make NUM count separately for each bus type.
>
> I agree, instance numbers are not stable.

NUM in the child bus name has *nothing* to do with the savevm instance 
number.

cheers,
   Gerd