[Qemu-devel] [PATCH v3 0/7] Obtain dirty bitmap via VM logging

[Sanidhya Kashyap]

Hi,

The following patches introduce the support of the dirty bitmap logging and
dumping to a specified file. This patch addresses the issues raised by David
and Juan. Since, I have not received any comments on the runstates, I'll keep
them in the patch series.

v2 --> v3
* Reformatted the code and removed some unnecessary parts.
* Printing block info along with length and offset.
* Changed the functions that were directly using RUN_STATE_RUNNING as state.

v1 --> v2:
* Added two new run states to avoid simultaneous execution of both migration and
  bitmap dump process.
* Removed FILE pointer usage.
* Dumping the data only in machine-readable format.
* Tried to rectify mistakes of the previous version.

Sanidhya Kashyap (7):
  enable sharing of the function between migration and bitmap dump
  RunState: added two new flags for bitmap dump and migration process
  bitmap dump code via QAPI framework with runstates
  hmp interface for dirty bitmap dump
  cancel mechanism for an already running dump bitmap process
  set the frequency of the dump bitmap process
  python script for extracting bitmap from a binary file

 arch_init.c               |  19 +--
 hmp-commands.hx           |  45 ++++++
 hmp.c                     |  33 +++++
 hmp.h                     |   3 +
 hw/usb/hcd-ehci.c         |   2 +-
 hw/usb/redirect.c         |   6 +-
 include/exec/cpu-all.h    |   3 +-
 include/exec/ram_addr.h   |   4 +
 migration.c               |   7 +
 qapi-schema.json          |  44 +++++-
 qmp-commands.hx           |  77 ++++++++++
 savevm.c                  | 357 ++++++++++++++++++++++++++++++++++++++++++++++
 scripts/extract-bitmap.py |  97 +++++++++++++
 vl.c                      |  29 +++-
 14 files changed, 711 insertions(+), 15 deletions(-)
 create mode 100755 scripts/extract-bitmap.py

-- 
1.9.3