Re: [Qemu-devel] [PATCH 0/6] Device state visualization reloaded

[Jan Kiszka]

On 2011-09-07 15:23, Anthony Liguori wrote:
> On 09/07/2011 08:17 AM, Michael S. Tsirkin wrote:
>> On Wed, Sep 07, 2011 at 03:13:00PM +0200, Jan Kiszka wrote:
>>> On 2011-09-07 15:06, Michael S. Tsirkin wrote:
>>>> But if the command is not for users at all, if it's
>>>> for qemu debugging, then exposing internals is a very
>>>> logical thing.  Only problem is - we must make it very very clear
>>>> which commands are for qemu debugging.
>>>
>>> This command it also for users, to debug guests.
>>>
>>> Jan
>>
>> Hmm, guest visible state must be stable by definition.
>> So why can't we make the interfaces stable then?
> 
> Because right now how you reference devices cannot be stable.
> 
> Going back to a previous thread, what if the command took a qdev class 
> type as a filter?
> 
> That would be a stable name, not require anonymous IDs, and would have 
> the property of usually being a single device.

It's surely not usual that there is only a single instance of a device
type. That's why my old series introduced (unstable) instance numbering.
I refrained for warming those patches up again.

Jan

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