Re: [Qemu-devel] [RFC PATCH v7 7/8] virtio-pci-blk : Switch to new API.

[Andreas Färber]

Am 12.12.2012 18:53, schrieb Andreas Färber:
> Finally supplying a public device_initialize() or so would be helpful
> for the latter since VMState cannot cross pointers IIRC. I'll look into
> that part since inlining the old qdev functions cripples my Tegra work.

Investigating this, it turned out that my branch was outdated in still
calling qdev_prop_set_globals(), which some good soul (Paolo?) inlined
into device initfn. So the only step taken by qdev_try_create() that
remains after object_initialize() is qdev_set_parent_bus(), which I
think does not warrant a

device_post_initialize:
-> qdev_set_parent_bus()

qdev_try_create:
-> object_new()
-> device_post_initialize()

qdev_create:
-> qdev_try_create()

device_initialize:
-> object_initialize()
-> device_post_initialize()

construction.

So, given that virtio device states are in (or moved to) a header, they
can already be embedded in a has-a virtio-bus has-a Virtio*Device device
today and initialized with object_initialize(&s->the_device) and
qdev_set_parent_bus(&s->the_device, &s->the_virtio_bus).

Andreas

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