[Qemu-devel] [PATCH v4 0/8] Obtain dirty bitmap via VM logging

[Sanidhya Kashyap <sanidhya.iiith@gmail.com>]

Hi,

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

v3 --> v4
* Added new qmp interface for information extraction from the bitmap process

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 (8):
  enable sharing of the function between migration and bitmap dump
  RunState: added two new flags for bitmap dump and migration process
  BitmapLog: bitmap dump code via QAPI framework with runstates
  BitmapLog: hmp interface for dirty bitmap dump
  BitmapLog: cancel mechanism for an already running dump bitmap process
  BitmapLog: set the frequency of the dump bitmap process
  BitmapLog: get the information about the parameters
  BitmapLog: 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    |   4 +-
 include/exec/ram_addr.h   |   4 +
 migration.c               |   7 +
 qapi-schema.json          |  77 +++++++++-
 qmp-commands.hx           |  99 ++++++++++++
 savevm.c                  | 384 ++++++++++++++++++++++++++++++++++++++++++++++
 scripts/extract-bitmap.py |  97 ++++++++++++
 vl.c                      |  29 +++-
 14 files changed, 794 insertions(+), 15 deletions(-)
 create mode 100755 scripts/extract-bitmap.py

-- 
1.9.3