[Qemu-devel] [PATCH 0/3] Extend check callback usability for irq connect notifier

[Eric Auger]

The VFIO platform device gets connected to the platform bus
on a machine init done notifier. Only at that point irqfd can be
setup. An irq connect notifier would be helpful to do that job.
Instead of adding a new callback at sysbus or qdev level, this
series proposes to use the property check() callback (credit to
Paolo).

- the callback is passed to qdev_init_gpio_out_named
- sysbus class now holds a irq_set_hook method usable as check
  callback
- sysbus_init_irq initializes the callback to the class method
- object_set_link_property is modified so that
  * the target object is populated before the check
  * check takes an Object ** enabling to access the object
    container.

Then The VFIO platform device would override the irq_set_hook
method in a separate patch.

Please let me know if those modifications are acceptable. Else
I will follow Peter's proposal. 

Best Regards

Eric

Eric Auger (3):
  qdev: pass the check callback to qdev_init_gpio_out_named
  qdev: check callback takes Object **target as third argument
  sysbus: add irq_set_hook

 hw/core/qdev-properties.c    |  2 +-
 hw/core/qdev.c               |  8 +++++---
 hw/core/sysbus.c             |  8 +++++++-
 include/hw/qdev-core.h       |  3 ++-
 include/hw/qdev-properties.h |  2 +-
 include/hw/sysbus.h          |  1 +
 include/qom/object.h         |  8 +++++---
 qom/object.c                 | 15 +++++++++------
 8 files changed, 31 insertions(+), 16 deletions(-)

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1.8.3.2