[Xen-devel] [PATCH 0/6] libxl: create standalone vkb device

[Oleksandr Grytsov <al1img@xxxxxxxxx>]

From: Oleksandr Grytsov <oleksandr_grytsov@xxxxxxxx>

Currently vkb device is the part of FB and console.
In embedded application we use vkb protocol to communicate
with user space backend. For this purpose we need to have
possibility to enable vkb device without QEMU, FB etc.

This particular issue was already discussed int the mail
thread [1]. There were few possible solutions. We've implemented
one suggested by Stefano: add "type" field for vkb.
Each backend (QEMU or user space) shall read this field and
serve frontend only for own type. I will provide the patch
for QEMU backend, once this solution is submitted to libxl.

This patchset consist of following changes:

* vkb related code is moved to libxl_vkb.c - as it now 
  used not only by console and FB;
* add backend type support in order to support QEMU and
  user space backends;
* add getting vkb list and getting device by id in order
  to implement CLI commands to attach, detach and list
  vkb devices;
* add new vkb entry in xl.cfg to handle separate vkb
  configuration;
* add CLI vkb-attach, vkb-detach and vkb-list commands;
* update documentation accordingly.

[1] https://marc.info/?l=qemu-devel&m=149219237030212&w=2

Oleksandr Grytsov (6):
  libxl: move vkb device to libxl_vkb.c
  libxl: fix vkb XS entry and type
  libxl: add backend type to vkb
  libxl: vkb add list and info functions
  xl: add vkb config parser and CLI
  docs: add vkb device to xl.cfg and xl

 docs/man/xl.cfg.pod.5.in    |  24 ++++++
 docs/man/xl.pod.1.in        |  22 ++++++
 tools/libxl/Makefile        |   1 +
 tools/libxl/libxl.h         |  10 +++
 tools/libxl/libxl_console.c |  53 -------------
 tools/libxl/libxl_create.c  |   4 +
 tools/libxl/libxl_dm.c      |   2 +
 tools/libxl/libxl_types.idl |  18 +++++s
 tools/libxl/libxl_utils.h   |   3 +
 tools/libxl/libxl_vkb.c     | 180 ++++++++++++++++++++++++++++++++++++++++++++
 tools/xl/Makefile           |   2 +-
 tools/xl/xl.h               |   3 +
 tools/xl/xl_cmdtable.c      |  15 ++++
 tools/xl/xl_parse.c         |  77 ++++++++++++++++++-
 tools/xl/xl_parse.h         |   2 +-
 tools/xl/xl_vkb.c           | 141 ++++++++++++++++++++++++++++++++++
 16 files changed, 501 insertions(+), 56 deletions(-)
 create mode 100644 tools/libxl/libxl_vkb.c
 create mode 100644 tools/xl/xl_vkb.c

-- 
2.7.4


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