[Qemu-devel] [PATCH 0/6] snapshot: take snapshots in unified way

[Wenchao Xia]

  These patch added a seperated layer to take internal or external snapshots
in a unified way, the granularity is block device, so other functions can
just combine the request and submit, such as group snapshot, savevm.

Total goal are:
  Live back up vm in external or internal image, which need three function:
1 live snapshot block device internal/external.
2 live save vmstate internal/external.
3 combination of the function unit.

  This patch basically provide function one in unified style with granularity
of device.

Wenchao Xia (6):
  snapshot: export function in block.c
  snapshot: add error set function
  snapshot: design of common API to take snapshots
  snapshot: implemention of common API to take snapshots
  snapshot: qmp interface
  snapshot: human monitor interface

 block.c          |   30 ++
 block.h          |    3 +
 blockdev.c       |  833 +++++++++++++++++++++++++++++++++++++++++++++---------
 blockdev.h       |  129 +++++++++
 error.c          |   23 ++
 error.h          |    9 +
 hmp-commands.hx  |   50 +++-
 hmp.c            |   30 ++-
 hmp.h            |    1 +
 monitor.c        |   21 +-
 qapi-schema.json |  102 ++++++-
 savevm.c         |   77 ++++--
 sysemu.h         |    2 +-
 13 files changed, 1117 insertions(+), 193 deletions(-)