Re: [Qemu-devel] [PATCH v2] qom: Introduce object_realize_nofail()

[Paolo Bonzini]

Il 13/04/2012 16:06, Andreas Färber ha scritto:
> I'm still talking about the (pretty clear to me) graph that I posted.
> There, object A's init function creates a new qdev object - . Creating
> an object can fail - fatally or non-fatally.
> 
> And yes, exactly my point, currently initfn (first stage) cannot fail,
> only the second stage (DeviceClass::init). Which is why I've been saying
> we'll need to refactor those "fake composition" usages first before we
> declare that we can defer qdev initialization to vl.c.

But why should they fail?  This is what I also asked.  If instance-init
is deterministic, it will either always or never fail (besides cases
like memory allocation which cannot really be handled correctly).

Paolo