Re: [Qemu-devel] [PATCH 6/6] hw/sd.c: convert to QOM object

[Paolo Bonzini]

Il 02/04/2012 18:48, Peter Maydell ha scritto:
> Ideally rather than having a class specific init function we
> should make the 'is_spi' and 'bdrv' be object properties, and
> then you do something like (syntax probably wrong but):
>   s->card = SD_CARD(object_new(TYPE_SD_CARD));
>   if (dinfo) {
>      object_property_set_bdrv(s->card, dinfo->bdrv, "bdrv", errp);

Long term, this would be a link property.  Short term it can be

object_property_set_str(s->card, bdrv_get_device_name(dinfo->bdrv),
                        "bdrv", errp);

>   }
>   realize(s->card);

No need to realize explicitly if you instead call
object_property_add_child to add s->card as a child of s.

> (where the default for bdrv is NULL and the default for is_spi is false
> so we don't need to set that).
> 
> This needs realize support for QOM objects, though.

And support for properties in non-device objects.  Both coming tomorrow. :)

Paolo