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Date: Tue, 13 Mar 2012 17:28:22 +0100
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Subject: Re: [Qemu-devel] about kvmclock QOM
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To: Zhi Yong Wu <zwu.kernel@gmail.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>, QEMU Developers <qemu-devel@nongnu.org>, Anthony Liguori <anthony@codemonkey.ws>

Am 13.03.2012 16:21, schrieb Zhi Yong Wu:
> On Tue, Mar 13, 2012 at 11:10 PM, Andreas F=E4rber <afaerber@suse.de> w=
rote:
>> Am 13.03.2012 15:52, schrieb Zhi Yong Wu:
>>> On Tue, Mar 13, 2012 at 10:36 PM, Andreas F=E4rber <afaerber@suse.de>=
 wrote:
>>>> What you are looking for is the "parent" property which gets set up =
by
[...adding a child property to some object. Many devices are not yet
wired up as such...]
>>> You mean that current device object should have one "parent" property=
?
>>> Its parent device should have one "child" property pointing to it?
>>> But i have not seen this property in qom-list output.
>>> [root@f15 qemu]# QMP/qom-list -s /tmp/server.sock /
>>> vga/
>>> i440fx/
>>> peripheral/
>>> peripheral-anon/
>>
>> Every one of these with */ is a child, in this case of the root "/". :=
)
> Moreover, why can isa-serial device be liste in qom-list output but
> kvmclock can't? where is the difference between their QOM?

Because someone must give the child a name and assign a parent to it by
calling said object_property_add_child(). ("wired up" above)

Anthony had an RFC series refactoring i440fx, for instance, that sparked
some controversy and was not followed-up yet.

Andreas

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