[PATCH 0/8] New parameter for migration stream

[nikita.lapshin@openvz.org]

From: Nikita Lapshin <nikita.lapshin@openvz.org>

We want to implement exteranl bg-snapshot tool for saving RAM. For this it
is important to be able manage migration stream because tool has no idea
about non-RAM part and how to parse it.

This paramter provides gurantee about migration content. Now there are 4
parts of migration stream which can be specified: "ram", "block",
"dirty-bitmaps", "vmstate". "vmstate" can be any section which handler has
vmdesc. "block" and "dirty-bitmpas" impleneted just like existing
capabilities.

This way of specifying can be extended on future parts of migration.

Nikita Lapshin (8):
  migration: Implemented new parameter stream_content
  migration: should_skip() implemented
  migration: Add vmstate part of migration stream
  migration: Add dirty-bitmaps part of migration stream
  migration: Add block part of migration stream
  migration: Add RAM part of migration stream
  migration: analyze-migration script changed
  migration: Test for RAM and vmstate parts

 migration/migration.c                         | 76 ++++++++++++++-
 migration/migration.h                         |  3 +
 migration/ram.c                               |  6 ++
 migration/savevm.c                            | 69 ++++++++-----
 qapi/migration.json                           | 21 +++-
 scripts/analyze-migration.py                  | 19 ++--
 .../tests/migrate-ram-stream-content-test     | 96 +++++++++++++++++++
 .../tests/migrate-ram-stream-content-test.out |  5 +
 8 files changed, 256 insertions(+), 39 deletions(-)
 create mode 100755 tests/qemu-iotests/tests/migrate-ram-stream-content-test
 create mode 100644 tests/qemu-iotests/tests/migrate-ram-stream-content-test.out

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2.31.1