From: Anthony Liguori <anthony@codemonkey.ws>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
Peter Maydell <peter.maydell@linaro.org>,
Anthony Liguori <aliguori@us.ibm.com>,
Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
Jan Kiszka <jan.kiszka@siemens.com>,
qemu-devel@nongnu.org, Luiz Capitulino <lcapitulino@redhat.com>,
Markus Armbruster <armbru@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v3 00/20] qom: dynamic properties and composition tree
Date: Fri, 16 Dec 2011 08:11:01 -0600 [thread overview]
Message-ID: <4EEB5175.8070507@codemonkey.ws> (raw)
In-Reply-To: <4EEB4D38.6050200@redhat.com>
On 12/16/2011 07:52 AM, Paolo Bonzini wrote:
> On 12/16/2011 02:51 PM, Anthony Liguori wrote:
>> struct ISASerial {
>> Device parent;
>>
>> UART _child uart;
>> ISABus _link *bus;
>> };
>>
>> A child should be able to be part of the parent devices memory with its
>> life cycle bound to the parents life cycle. This is why a child
>> property shouldn't be nullable.
>
> 100% agreed in principle.
>
> But technically, if you do not make them pointers how do you handle children
> that, for some reason (broken reference counting for example) outlive the
> parent? Aborting could be a very good answer. :)
Yes, aborting would be the answer.
Regards,
Anthony Liguori
>
> Paolo
>
next prev parent reply other threads:[~2011-12-16 14:11 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-12 20:29 [Qemu-devel] [PATCH v3 00/20] qom: dynamic properties and composition tree Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 01/20] qom: add a reference count to qdev objects Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 02/20] qom: add new dynamic property infrastructure based on Visitors (v2) Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 03/20] qom: register legacy properties as new style properties (v2) Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 04/20] qom: introduce root device Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 05/20] qdev: provide an interface to return canonical path from root (v2) Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 06/20] qdev: provide a path resolution (v2) Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 07/20] qom: add child properties (composition) (v3) Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 08/20] qom: add link properties (v2) Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 09/20] qapi: allow a 'gen' key to suppress code generation Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 10/20] qmp: add qom-list command Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 11/20] qom: qom_{get, set} monitor commands (v2) Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 12/20] qdev: add explicitly named devices to the root complex Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 13/20] dev: add an anonymous peripheral container Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 14/20] rtc: make piix3 set the rtc as a child (v2) Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 15/20] rtc: add a dynamic property for retrieving the date Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 16/20] qom: optimize qdev_get_canonical_path using a parent link Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 17/20] qom: add vga node to the pc composition tree Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 18/20] qom: add string property type Anthony Liguori
2011-12-12 20:29 ` [Qemu-devel] [PATCH v3 19/20] qdev: add a qdev_get_type() function and expose as a 'type' property Anthony Liguori
2011-12-15 18:10 ` [Qemu-devel] [PATCH v3 00/20] qom: dynamic properties and composition tree Anthony Liguori
2011-12-16 9:42 ` Kevin Wolf
2011-12-16 10:17 ` Paolo Bonzini
2011-12-16 10:36 ` Kevin Wolf
2011-12-16 12:24 ` Paolo Bonzini
2011-12-16 12:55 ` Kevin Wolf
2011-12-16 13:28 ` Paolo Bonzini
2011-12-16 13:52 ` Anthony Liguori
2011-12-16 13:51 ` Anthony Liguori
2011-12-16 13:52 ` Paolo Bonzini
2011-12-16 14:11 ` Anthony Liguori [this message]
2011-12-16 14:18 ` Kevin Wolf
2011-12-16 14:54 ` Anthony Liguori
2011-12-16 14:56 ` Paolo Bonzini
2011-12-16 15:10 ` Kevin Wolf
2011-12-16 13:49 ` Anthony Liguori
2011-12-16 13:48 ` Anthony Liguori
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