From: Kevin Wolf <kwolf@redhat.com>
To: Anthony Liguori <aliguori@us.ibm.com>
Cc: Peter Maydell <peter.maydell@linaro.org>,
Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
Jan Kiszka <jan.kiszka@siemens.com>,
qemu-devel@nongnu.org, Luiz Capitulino <lcapitulino@redhat.com>,
Gerd Hoffman <kraxel@redhat.com>,
Markus Armbruster <armbru@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v2 15/18] rtc: add a dynamic property for retrieving the date
Date: Fri, 09 Dec 2011 12:26:10 +0100 [thread overview]
Message-ID: <4EE1F052.1020703@redhat.com> (raw)
In-Reply-To: <1322857256-14951-16-git-send-email-aliguori@us.ibm.com>
Am 02.12.2011 21:20, schrieb Anthony Liguori:
> This really shows the power of dynamic object properties compared to qdev
> static properties.
>
> This property represents a complex structure who's format is preserved over the
> wire. This is enabled by visitors.
>
> It also shows an entirely synthetic property that is not tied to device state.
>
> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
There's one thing that I was hoping to find answered when I would have
reviewed the whole series, but it hasn't happened: There is no doubt
that dynamic properties (in the sense of being able to modify them after
constructions) are a useful thing. But you also claim that class-based
properties are not enough for QOM and that we need object-based ones,
which is a requirement not immediately obvious to me.
Can you provide some examples where we would explicitly need
object-based properties?
Kevin
next prev parent reply other threads:[~2011-12-09 11:23 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-02 20:20 [Qemu-devel] [PATCH v2 00/18] qom: dynamic properties and composition tree (v2) Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 01/18] qom: add a reference count to qdev objects Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 02/18] qom: add new dynamic property infrastructure based on Visitors (v2) Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 03/18] qom: register legacy properties as new style properties (v2) Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 04/18] qom: introduce root device Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 05/18] qdev: provide an interface to return canonical path from root (v2) Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 06/18] qdev: provide a path resolution (v2) Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 07/18] qom: add child properties (composition) (v2) Anthony Liguori
2011-12-08 15:38 ` Kevin Wolf
2011-12-08 16:45 ` Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 08/18] qom: add link properties (v2) Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 09/18] qapi: allow a 'gen' key to suppress code generation Anthony Liguori
2011-12-08 16:04 ` Kevin Wolf
2011-12-08 16:45 ` Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 10/18] qmp: add qom-list command Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 11/18] qom: qom_{get, set} monitor commands (v2) Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 12/18] qdev: add explicitly named devices to the root complex Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 13/18] dev: add an anonymous peripheral container Anthony Liguori
2011-12-08 16:27 ` Kevin Wolf
2011-12-08 16:44 ` Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 14/18] rtc: make piix3 set the rtc as a child (v2) Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 15/18] rtc: add a dynamic property for retrieving the date Anthony Liguori
2011-12-09 11:26 ` Kevin Wolf [this message]
2011-12-09 13:08 ` Anthony Liguori
2011-12-09 14:04 ` Kevin Wolf
2011-12-09 14:25 ` Anthony Liguori
2011-12-13 9:27 ` Kevin Wolf
2011-12-13 9:48 ` Gerd Hoffmann
2011-12-13 13:33 ` Anthony Liguori
2011-12-13 13:31 ` Anthony Liguori
2011-12-13 13:49 ` Kevin Wolf
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 16/18] qom: optimize qdev_get_canonical_path using a parent link Anthony Liguori
2011-12-09 11:13 ` Kevin Wolf
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 17/18] qmp: make qmp.py easier to use Anthony Liguori
2011-12-02 20:20 ` [Qemu-devel] [PATCH v2 18/18] qom: add test tools (v2) Anthony Liguori
2011-12-09 11:19 ` Kevin Wolf
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