[PATCH v7 00/18] Prerequisite patches for COLO

[Wen Congyang <wency@cn.fujitsu.com>]

This patchset is Prerequisite for COLO feature. Refer to:
http://wiki.xen.org/wiki/COLO_-_Coarse_Grain_Lock_Stepping

Patch status:
1. Acked patches: patch 2, 3, 4, 9, 10, 15, 16, 18
2. Reviewd patches: patch 1, 10, 13, 15, 16, 17, 18
3. New patches: none
Note: patch 4 is updated to fix a bug

You can get the codes from here:
https://github.com/wencongyang/xen/tree/colo_pre_v7
You can get the whole colo related patches from here:
https://github.com/wencongyang/xen/tree/colo_v10

v6->v7:
 - Addressed comments from Konrad Rzeszutek Wilk

v5->v6:
 - Fix some bugs found in the test

v4->v5:
 - Rebased to the latest xen
 - Addressed comments from last round

v3->v4:
 - Rebased to the latest migration v2 branch
 - Addressed comments from last round

v2->v3:
 - Merge '[PATCH v2 0/6] Misc cleanups for libxl' into this patchset
   for easy review
 - Addressed review comments
 - Add back channel to libxc
 - Introduce should_checkpoint callback
 - Introduce DIRTY_BITMAP record on libxc side
 - Introduce COLO_CONTEXT record on libxl side
 - Ported to Libxl migration v2

v1->v2:
 - Rebased to [PATCH v2 0/6] Misc cleanups for libxl
 - Add a bugfix for the error handling of process_record

Wen Congyang (18):
  libxl/remus: init checkpoint_callback in Remus setup callback
  tools/libxl: move remus code into libxl_remus.c
  tools/libxl: move save/restore code into libxl_dom_save.c
  libxl/save: Refactor libxl__domain_suspend_state
  tools/libxc: support to resume uncooperative HVM guests
  tools/libxl: introduce enum type libxl_checkpointed_stream
  migration/save: pass checkpointed_stream from libxl to libxc
  tools/libxl: introduce libxl__domain_restore_device_model to load qemu
    state
  tools/libxl: introduce libxl__domain_common_switch_qemu_logdirty()
  tools/libxl: export logdirty_init
  tools/libxl: Add back channel to allow migration target send data back
  tools/libx{l,c}: add back channel to libxc
  tools/libxl: rename remus device to checkpoint device
  tools/libxl: fix backword compatibility after the automatic renaming
  tools/libxl: adjust the indentation
  tools/libxl: store remus_ops in checkpoint device state
  tools/libxl: move remus state into a seperate structure
  tools/libxl: seperate device init/cleanup from checkpoint device layer

 tools/libxc/include/xenguest.h        |   8 +-
 tools/libxc/xc_nomigrate.c            |   5 +-
 tools/libxc/xc_resume.c               |  25 +-
 tools/libxc/xc_sr_common.h            |  12 +-
 tools/libxc/xc_sr_restore.c           |   2 +-
 tools/libxc/xc_sr_save.c              |  18 +-
 tools/libxl/Makefile                  |   4 +-
 tools/libxl/libxl.c                   |  83 +---
 tools/libxl/libxl.h                   |  49 ++-
 tools/libxl/libxl_checkpoint_device.c | 282 +++++++++++++
 tools/libxl/libxl_create.c            |  50 +--
 tools/libxl/libxl_dom.c               | 740 ----------------------------------
 tools/libxl/libxl_dom_save.c          | 555 +++++++++++++++++++++++++
 tools/libxl/libxl_dom_suspend.c       | 207 ++++++----
 tools/libxl/libxl_internal.h          | 237 +++++++----
 tools/libxl/libxl_netbuffer.c         | 117 +++---
 tools/libxl/libxl_nonetbuffer.c       |  10 +-
 tools/libxl/libxl_qmp.c               |  10 +
 tools/libxl/libxl_remus.c             | 410 +++++++++++++++++++
 tools/libxl/libxl_remus_device.c      | 327 ---------------
 tools/libxl/libxl_remus_disk_drbd.c   |  56 +--
 tools/libxl/libxl_save_callout.c      |  43 +-
 tools/libxl/libxl_save_helper.c       |   9 +-
 tools/libxl/libxl_stream_read.c       |   7 +-
 tools/libxl/libxl_stream_write.c      |  18 +-
 tools/libxl/libxl_types.idl           |  10 +-
 tools/libxl/xl_cmdimpl.c              |  26 +-
 tools/ocaml/libs/xl/xenlight_stubs.c  |   2 +-
 28 files changed, 1836 insertions(+), 1486 deletions(-)
 create mode 100644 tools/libxl/libxl_checkpoint_device.c
 create mode 100644 tools/libxl/libxl_dom_save.c
 create mode 100644 tools/libxl/libxl_remus.c
 delete mode 100644 tools/libxl/libxl_remus_device.c

-- 
2.5.0