Re: [Qemu-devel] [PATCH v3 00/20] qom: dynamic properties and composition tree

[Anthony Liguori <aliguori@us.ibm.com>]

On 12/12/2011 02:29 PM, Anthony Liguori wrote:
> This is a follow up to my previous series to get us started in the QOM
> direction.  A few things are different this time around.  Most notably:
>
>   1) Devices no longer have names.  Instead, path names are always used to
>      identify devices.
>
>   2) In order to support (1), dynamic properties are now supported.
>
>   3) The concept of a "root device" has been introduced.  The root device is
>      roughly modelling the motherboard of a machine.  This type is a container
>      type and it's best to think of it as something like a PCB board I guess.
>
> See my other mail for a description of my merge plan for QOM.

Applied.

Regards,

Anthony Liguori

>
> To try it out, here's an example session:
>
> Launch:
>
> anthony@titi:~/build/qemu$ x86_64-softmmu/qemu-system-x86_64 -hda ~/images/linux.img -snapshot -device virtio-balloon-pci,id=foo -qmp unix:/tmp/server.sock,server,nowait
>
> Explore the object model:
>
> anthony@titi:~/git/qemu/QMP$ ./qom-list /
> peripheral/
> i440fx/
> anthony@titi:~/git/qemu/QMP$ ./qom-list /i440fx/
> piix3/
> anthony@titi:~/git/qemu/QMP$ ./qom-list /i440fx/piix3
> rtc/
> anthony@titi:~/git/qemu/QMP$ ./qom-list /i440fx/piix3/rtc
> date
> base_year
> anthony@titi:~/git/qemu/QMP$ ./qom-get /i440fx/piix3/rtc.date
> tm_sec: 33
> tm_hour: 21
> tm_mday: 30
> tm_year: 111
> tm_mon: 10
> tm_min: 2
> anthony@titi:~/git/qemu/QMP$ ./qom-get rtc.date
> tm_sec: 38
> tm_hour: 21
> tm_mday: 30
> tm_year: 111
> tm_mon: 10
> tm_min: 2
> anthony@titi:~/git/qemu/QMP$ ./qom-list /peripheral
> foo/
> anthony@titi:~/git/qemu/QMP$ ./qom-list /peripheral/foo
> event_idx
> indirect_desc
>
> Anthony Liguori (20):
>    qom: add a reference count to qdev objects
>    qom: add new dynamic property infrastructure based on Visitors (v2)
>    qom: register legacy properties as new style properties (v2)
>    qom: introduce root device
>    qdev: provide an interface to return canonical path from root (v2)
>    qdev: provide a path resolution (v2)
>    qom: add child properties (composition) (v3)
>    qom: add link properties (v2)
>    qapi: allow a 'gen' key to suppress code generation
>    qmp: add qom-list command
>    qom: qom_{get,set} monitor commands (v2)
>    qdev: add explicitly named devices to the root complex
>    dev: add an anonymous peripheral container
>    rtc: make piix3 set the rtc as a child (v2)
>    rtc: add a dynamic property for retrieving the date
>    qom: optimize qdev_get_canonical_path using a parent link
>    qom: add vga node to the pc composition tree
>    qom: add string property type
>    qdev: add a qdev_get_type() function and expose as a 'type' property
>    pc: fill out most of the composition tree
>
>   Makefile.objs            |    2 +-
>   hw/acpi_piix4.c          |    7 +-
>   hw/cirrus_vga.c          |    8 +-
>   hw/container.c           |   20 ++
>   hw/ide/pci.c             |   11 +-
>   hw/kvmclock.c            |    5 +-
>   hw/kvmclock.h            |    5 +-
>   hw/mc146818rtc.c         |   27 +++
>   hw/mips_malta.c          |    5 +-
>   hw/pc.c                  |   75 +++++--
>   hw/pc.h                  |   51 +++--
>   hw/pc_piix.c             |   61 ++++--
>   hw/piix_pci.c            |   11 +-
>   hw/qdev.c                |  555 +++++++++++++++++++++++++++++++++++++++++++++-
>   hw/qdev.h                |  281 +++++++++++++++++++++++
>   hw/usb-uhci.c            |    4 +-
>   hw/usb-uhci.h            |    2 +-
>   hw/vga-pci.c             |    5 +-
>   hw/vmware_vga.h          |    6 +-
>   monitor.h                |    4 +
>   qapi-schema.json         |  107 +++++++++
>   qerror.c                 |    4 +
>   qerror.h                 |    3 +
>   qmp-commands.hx          |   18 ++
>   qmp.c                    |   93 ++++++++
>   scripts/qapi-commands.py |    1 +
>   scripts/qapi-types.py    |    1 +
>   27 files changed, 1289 insertions(+), 83 deletions(-)
>   create mode 100644 hw/container.c
>