Re: RFC qdev path semantics

Gerd Hoffmann
2010-06-18T07:53:00Z

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