[PATCH 00/12] virtio: add vhost-user-generic and reduce copy and paste

[Alex Bennée]

A lot of our vhost-user stubs are large chunks of boilerplate that do
(mostly) the same thing. This series attempts to fix that by defining
a new base class for vhost-user devices and then converting the rng
and gpio devices to be based off them. You can even use
vhost-user-device directly if you supply it with the right magic
numbers (which is helpful for development).

However the final patch runs into the weeds because I don't yet have a
clean way to represent in QOM the fixing of certain properties for the
specialised classes.

The series is a net reduction in code and an increase in
documentation but obviously needs to iron out a few more warts. I'm
open to suggestions on the best way to tweak the QOM stuff.

Alex.

Alex Bennée (12):
  hw/virtio: fix typo in VIRTIO_CONFIG_IRQ_IDX comments
  include/hw/virtio: document virtio_notify_config
  include/hw/virtio: add kerneldoc for virtio_init
  include/hw/virtio: document some more usage of notifiers
  virtio: add generic vhost-user-device
  virtio: add PCI stub for vhost-user-device
  include: attempt to document device_class_set_props
  qom: allow for properties to become "fixed"
  hw/virtio: derive vhost-user-rng from vhost-user-device
  hw/virtio: add config support to vhost-user-device
  hw/virtio: derive vhost-user-gpio from vhost-user-device (!BROKEN)
  docs/system: add a basic enumeration of vhost-user devices

 docs/system/devices/vhost-user-rng.rst |   2 +
 docs/system/devices/vhost-user.rst     |  41 +++
 qapi/qom.json                          |   2 +
 include/hw/qdev-core.h                 |   9 +
 include/hw/virtio/vhost-user-device.h  |  33 ++
 include/hw/virtio/vhost-user-gpio.h    |  23 +-
 include/hw/virtio/vhost-user-rng.h     |  11 +-
 include/hw/virtio/virtio.h             |  21 ++
 include/qom/object.h                   |  16 +-
 hw/display/vhost-user-gpu.c            |   4 +-
 hw/net/virtio-net.c                    |   4 +-
 hw/virtio/vhost-user-device-pci.c      |  71 +++++
 hw/virtio/vhost-user-device.c          | 359 ++++++++++++++++++++++
 hw/virtio/vhost-user-fs.c              |   4 +-
 hw/virtio/vhost-user-gpio.c            | 405 +------------------------
 hw/virtio/vhost-user-rng.c             | 264 +---------------
 hw/virtio/vhost-vsock-common.c         |   4 +-
 hw/virtio/virtio-crypto.c              |   4 +-
 qom/object.c                           |  14 +
 qom/object_interfaces.c                |   9 +-
 qom/qom-qmp-cmds.c                     |   1 +
 softmmu/qdev-monitor.c                 |   1 +
 hw/virtio/meson.build                  |   3 +
 23 files changed, 613 insertions(+), 692 deletions(-)
 create mode 100644 include/hw/virtio/vhost-user-device.h
 create mode 100644 hw/virtio/vhost-user-device-pci.c
 create mode 100644 hw/virtio/vhost-user-device.c

-- 
2.39.2