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[Xen-devel] [PATCH v10 00/31] COarse-grain LOck-stepping Virtual Machines for Non-stop Service



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

This patchset is based on:
1. http://lists.xenproject.org/archives/html/xen-devel/2016-02/msg02515.html

You can get the codes from here:
https://github.com/wencongyang/xen/tree/colo_v10

Changlog from v9 to v10
1. Rebased to the upstream xen
2. Fix one bug found in the test
3. Merge some patches from prepare series
4. Split patch 5 to two patches(patch 4 and 5) according to the comments from
   Wei Liu

Changlog from v8 to v9:
1. Rebased to the upstream xen
2. Fix some bugs found in the test

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 (31):
  tools/libxl: introduce libxl__domain_restore_device_model to load qemu
    state
  tools/libxl: introduce libxl__domain_common_switch_qemu_logdirty()
  tools/libxl: Add back channel to allow migration target send data back
  tools/libxl: Introduce new helper function dup_fd_helper()
  tools/libx{l,c}: add back channel to libxc
  docs: add colo readme
  docs/libxl: Introduce CHECKPOINT_CONTEXT to support migration v2 colo
    streams
  libxc/migration: Specification update for DIRTY_PFN_LIST records
  libxc/migration: export read_record for common use
  tools/libxl: add back channel support to write stream
  tools/libxl: write checkpoint_state records into the stream
  tools/libxl: add back channel support to read stream
  tools/libxl: handle checkpoint_state records in a libxl migration v2
    read stream
  tools/libx{l,c}: introduce wait_checkpoint callback
  tools/libx{l,c}: add postcopy/suspend callback to restore side
  secondary vm suspend/resume/checkpoint code
  primary vm suspend/resume/checkpoint code
  libxc/restore: support COLO restore
  libxc/restore: send dirty pfn list to primary when checkpoint under
    colo
  send store gfn and console gfn to xl before resuming secondary vm
  libxc/save: support COLO save
  implement the cmdline for COLO
  COLO: introduce new API to prepare/start/do/get_error/stop replication
  Support colo mode for qemu disk
  COLO: use qemu block replication
  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      |   50 ++
 docs/specs/libxc-migration-stream.pandoc |   24 +-
 docs/specs/libxl-migration-stream.pandoc |   25 +-
 tools/hotplug/Linux/Makefile             |    1 +
 tools/hotplug/Linux/colo-proxy-setup     |  135 ++++
 tools/libxc/include/xenguest.h           |   40 +-
 tools/libxc/xc_nomigrate.c               |    4 +-
 tools/libxc/xc_sr_common.c               |   80 ++-
 tools/libxc/xc_sr_common.h               |   26 +-
 tools/libxc/xc_sr_restore.c              |  246 +++++--
 tools/libxc/xc_sr_save.c                 |  109 ++-
 tools/libxc/xc_sr_stream_format.h        |   31 +-
 tools/libxl/Makefile                     |    4 +
 tools/libxl/libxl.c                      |  100 ++-
 tools/libxl/libxl.h                      |   29 +-
 tools/libxl/libxl_colo.h                 |   36 +
 tools/libxl/libxl_colo_nic.c             |  321 +++++++++
 tools/libxl/libxl_colo_proxy.c           |  292 ++++++++
 tools/libxl/libxl_colo_qdisk.c           |  226 +++++++
 tools/libxl/libxl_colo_restore.c         | 1091 ++++++++++++++++++++++++++++++
 tools/libxl/libxl_colo_save.c            |  721 ++++++++++++++++++++
 tools/libxl/libxl_create.c               |   86 ++-
 tools/libxl/libxl_device.c               |   54 ++
 tools/libxl/libxl_dm.c                   |  184 ++++-
 tools/libxl/libxl_dom_save.c             |  124 ++--
 tools/libxl/libxl_internal.h             |  247 +++++--
 tools/libxl/libxl_qmp.c                  |  106 +++
 tools/libxl/libxl_save_callout.c         |   52 +-
 tools/libxl/libxl_save_helper.c          |    8 +-
 tools/libxl/libxl_save_msgs_gen.pl       |   13 +-
 tools/libxl/libxl_sr_stream_format.h     |   11 +
 tools/libxl/libxl_stream_read.c          |   96 ++-
 tools/libxl/libxl_stream_write.c         |   86 ++-
 tools/libxl/libxl_types.idl              |   11 +
 tools/libxl/libxlu_disk_l.l              |    7 +
 tools/libxl/xl.c                         |    3 +
 tools/libxl/xl.h                         |    1 +
 tools/libxl/xl_cmdimpl.c                 |  107 ++-
 tools/libxl/xl_cmdtable.c                |    4 +-
 tools/ocaml/libs/xl/xenlight_stubs.c     |    2 +-
 tools/python/xen/migration/libxc.py      |   68 +-
 tools/python/xen/migration/libxl.py      |    9 +
 45 files changed, 4567 insertions(+), 329 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

-- 
2.5.0




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