[Xen-devel] [PATCH v8 --for 4.6 COLO 00/25] COarse-grain LOck-stepping Virtual Machines for Non-stop Service

[Yang Hongyang <yanghy@xxxxxxxxxxxxxx>]

This patchset implemented the COLO feature for Xen.
For detail/install/use of COLO feature, refer to:
  http://wiki.xen.org/wiki/COLO_-_Coarse_Grain_Lock_Stepping

In this series, we've rebased to the latest libxl migration v2.

This patchset is based on:
  [PATCH v4 --for 4.6 COLOPre 00/25] Prerequisite patches for COLO

Only support hvm guest for now. The code is also hosted on github:
  https://github.com/macrosheep/xen/tree/colo-v8

Changelog from v7 to v8:
1. Rebased to the latest libxl migration v2.

Changelog from v6 to v7:
1. Ported to Libxl migration v2
2. Send dirty bitmap from secondary to primary on libxc side
3. Address review comments

Changelog from v5 to v6:
1. based on migration v2(libxc)
2. split the patchset into prerequisite patchset and this main patchset.

Changelog from v4 to v5:
1. rebase to the latest xen upstream
2. disk replication: blktap2->qdisk
3. nic replication: colo-agent->colo-proxy

Changelog from v3 to v4:
1. rebase to newest xen
2. bug fix

Changlog from v2 to v3:
1. rebase to newest remus
2. add nic replication support

Changlog from v1 to v2:
1. rebase to newest remus
2. add disk replication support


Wen Congyang (7):
  docs/libxl: Introduce COLO_CONTEXT to support migration v2 colo
    streams
  secondary vm suspend/resume/checkpoint code
  primary vm suspend/resume/checkpoint code
  send store mfn and console mfn to xl before resuming secondary vm
  implement the cmdline for COLO
  Support colo mode for qemu disk
  COLO: use qemu block replication

Yang Hongyang (18):
A  docs: add colo readme
  libxc/migration: Specification update for DIRTY_BITMAP records
  libxc/migration: export read_record for common use
  tools/libxl: add back channel support to write stream
  tools/libxl: write colo_context records into the stream
  tools/libxl: add back channel support to read stream
  tools/libxl: handle colo_context records in a libxl migration v2 read
    stream
  tools/libx{l,c}: introduce should_checkpoint callback
  tools/libx{l,c}: add postcopy/suspend callback to restore side
  libxc/restore: support COLO restore
  libxc/restore: send dirty bitmap to primary when checkpoint under colo
  libxc/save: support COLO save
  COLO proxy: implement setup/teardown of COLO proxy module
  COLO proxy: preresume, postresume and checkpoint
  COLO nic: implement COLO nic subkind
  setup and control colo proxy on primary side
  setup and control colo proxy on secondary side
  cmdline switches and config vars to control colo-proxy

 docs/README.colo                         |    9 +
 docs/man/xl.conf.pod.5                   |    6 +
 docs/man/xl.pod.1                        |   11 +-
 docs/misc/xl-disk-configuration.txt      |   38 ++
 docs/specs/libxc-migration-stream.pandoc |   24 +-
 docs/specs/libxl-migration-stream.pandoc |   22 +-
 tools/hotplug/Linux/Makefile             |    1 +
 tools/hotplug/Linux/colo-proxy-setup     |  131 ++++
 tools/libxc/include/xenguest.h           |   36 ++
 tools/libxc/xc_sr_common.c               |   50 ++
 tools/libxc/xc_sr_common.h               |   36 +-
 tools/libxc/xc_sr_restore.c              |  244 +++++--
 tools/libxc/xc_sr_save.c                 |  104 ++-
 tools/libxc/xc_sr_stream_format.h        |    1 +
 tools/libxl/Makefile                     |    4 +
 tools/libxl/libxl.c                      |   77 ++-
 tools/libxl/libxl_colo.h                 |   42 ++
 tools/libxl/libxl_colo_nic.c             |  320 ++++++++++
 tools/libxl/libxl_colo_proxy.c           |  267 ++++++++
 tools/libxl/libxl_colo_qdisk.c           |  209 ++++++
 tools/libxl/libxl_colo_restore.c         | 1024 ++++++++++++++++++++++++++++++
 tools/libxl/libxl_colo_save.c            |  709 +++++++++++++++++++++
 tools/libxl/libxl_create.c               |  153 ++++-
 tools/libxl/libxl_device.c               |   38 ++
 tools/libxl/libxl_dm.c                   |  257 +++++++-
 tools/libxl/libxl_dom_save.c             |   14 +-
 tools/libxl/libxl_internal.h             |  217 +++++--
 tools/libxl/libxl_qmp.c                  |   31 +
 tools/libxl/libxl_save_callout.c         |    7 +-
 tools/libxl/libxl_save_msgs_gen.pl       |   11 +-
 tools/libxl/libxl_sr_stream_format.h     |   11 +
 tools/libxl/libxl_stream_read.c          |   68 ++
 tools/libxl/libxl_stream_write.c         |  103 +++
 tools/libxl/libxl_types.idl              |    8 +
 tools/libxl/libxlu_disk_l.l              |    5 +
 tools/libxl/xl.c                         |    3 +
 tools/libxl/xl.h                         |    1 +
 tools/libxl/xl_cmdimpl.c                 |  101 ++-
 tools/libxl/xl_cmdtable.c                |    4 +-
 tools/python/xen/migration/libxl.py      |    9 +
 40 files changed, 4224 insertions(+), 182 deletions(-)
 create mode 100644 docs/README.colo
 create mode 100755 tools/hotplug/Linux/colo-proxy-setup
 create mode 100644 tools/libxl/libxl_colo.h
 create mode 100644 tools/libxl/libxl_colo_nic.c
 create mode 100644 tools/libxl/libxl_colo_proxy.c
 create mode 100644 tools/libxl/libxl_colo_qdisk.c
 create mode 100644 tools/libxl/libxl_colo_restore.c
 create mode 100644 tools/libxl/libxl_colo_save.c

-- 
1.9.1


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