[PATCH v1 00/13] various virtio docs, fixes and tweaks

[Alex Bennée]

Hi,

This series is a sub-set of patches while I was trying to re-rev my
virtio-rpmb patches. It attempts to address a few things:

  - improve documentation for virtio/vhost/vhost-user
  - document some of the API
  - a hacky fix for F_CONFIG handling
  - putting VhostUserState on a diet, make VhostUserHostNotifier dynamic

In particular I've been trying to better understand how vhost-user
interactions are meant to work and why there are two different methods
for instantiating them. If my supposition is correct perhaps a number
of devices that don't have in-kernel vhost equivalents could be converted?

While working onthe VhostUserHostNotifier changes I found it quite
hard to trigger the code. Is this rarely used code or just requires
backends we don't see in the testing?

Alex Bennée (10):
  hw/virtio: move virtio-pci.h into shared include space
  virtio-pci: add notification trace points
  hw/virtio: add vhost_user_[read|write] trace points
  vhost-user.rst: add clarifying language about protocol negotiation
  libvhost-user: expose vu_request_to_string
  docs/devel: start documenting writing VirtIO devices
  include/hw: start documenting the vhost API
  contrib/vhost-user-blk: fix 32 bit build and enable
  hw/virtio/vhost-user: don't suppress F_CONFIG when supported
  virtio/vhost-user: dynamically assign VhostUserHostNotifiers

Paolo Bonzini (3):
  docs: vhost-user: clean up request/reply description
  docs: vhost-user: rewrite section on ring state machine
  docs: vhost-user: replace master/slave with front-end/back-end

 docs/devel/index-internals.rst            |   1 +
 docs/devel/virtio-backends.rst            | 214 +++++++++
 docs/interop/vhost-user-gpu.rst           |  10 +-
 docs/interop/vhost-user.rst               | 555 ++++++++++++----------
 meson.build                               |   2 +-
 include/hw/virtio/vhost-user.h            |  43 +-
 include/hw/virtio/vhost.h                 | 132 ++++-
 {hw => include/hw}/virtio/virtio-pci.h    |   0
 subprojects/libvhost-user/libvhost-user.h |   9 +
 contrib/vhost-user-blk/vhost-user-blk.c   |   6 +-
 hw/scsi/vhost-user-scsi.c                 |   1 +
 hw/virtio/vhost-scsi-pci.c                |   2 +-
 hw/virtio/vhost-user-blk-pci.c            |   2 +-
 hw/virtio/vhost-user-fs-pci.c             |   2 +-
 hw/virtio/vhost-user-i2c-pci.c            |   2 +-
 hw/virtio/vhost-user-input-pci.c          |   2 +-
 hw/virtio/vhost-user-rng-pci.c            |   2 +-
 hw/virtio/vhost-user-scsi-pci.c           |   2 +-
 hw/virtio/vhost-user-vsock-pci.c          |   2 +-
 hw/virtio/vhost-user.c                    | 133 ++++--
 hw/virtio/vhost-vsock-pci.c               |   2 +-
 hw/virtio/virtio-9p-pci.c                 |   2 +-
 hw/virtio/virtio-balloon-pci.c            |   2 +-
 hw/virtio/virtio-blk-pci.c                |   2 +-
 hw/virtio/virtio-input-host-pci.c         |   2 +-
 hw/virtio/virtio-input-pci.c              |   2 +-
 hw/virtio/virtio-iommu-pci.c              |   2 +-
 hw/virtio/virtio-net-pci.c                |   2 +-
 hw/virtio/virtio-pci.c                    |   5 +-
 hw/virtio/virtio-rng-pci.c                |   2 +-
 hw/virtio/virtio-scsi-pci.c               |   2 +-
 hw/virtio/virtio-serial-pci.c             |   2 +-
 subprojects/libvhost-user/libvhost-user.c |   2 +-
 contrib/vhost-user-blk/meson.build        |   3 +-
 hw/virtio/trace-events                    |  10 +-
 35 files changed, 831 insertions(+), 333 deletions(-)
 create mode 100644 docs/devel/virtio-backends.rst
 rename {hw => include/hw}/virtio/virtio-pci.h (100%)

-- 
2.30.2