Re: [Qemu-devel] Re: [patch 2/3] Add support for live block copy

[Anthony Liguori]

On 02/23/2011 02:44 PM, Marcelo Tosatti wrote:
> > Any indirect qemu state.  Block migration is an example, but other
> > examples would be VNC server information (like current password),
> > WCE setting (depending on whether we modelled eeprom for the
> > drivers), and persisted device settings (lots of devices have eeprom
> > these days).
> >      
> Agreed.
>
> Why a separate location for this "stateful non-config" section, however?
>
> The state in question (backing image property, device presence, VNC
> info, etc) is already represented in either host or guest configuration,
> so why not simply expose that?
>    

Hrm, are you suggesting that the "stateful non-config" be hidden 
directly from the user such that only existing monitor interfaces are 
used to query it's contents?

I'll have to think about that a bit.  Obviously, the existing commands 
would still be authoritative even with a query-state command.  I think 
the only question is whether there's value in making this totally opaque.

Regards,

Anthony Liguori