[PATCH v4 0/3] libxl: save/restore qemu physmap

[Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>]

Hi all,
this patch series introduces a new xc_save_id called
XC_SAVE_ID_TOOLSTACK to save/restore toolstack specific information.
Libxl is going to use the new save_id to save and restore qemu's
physmap.

Important note: the second and third patches only make sense if the
corresponding QEMU's patches[1] are accepted.


[1] http://marc.info/?l=qemu-devel&m=132749682330542&w=2


Changes in v4:

- addressed Shriram's comments about the first patch: saving/restoring
toolstack extra information should work we Remus too now;

- added a new patch to use QMP "save_devices" command rather than
"migrate" to save QEMU's device state.



Changes in v3:

- rebased the series;

- xc_domain_restore: read the toolstack data in pagebuf_get_one, call
the callback at finish_hvm;



Changes in v2:

- xc_domain_save frees the buffer allocated by the callback;

- introduce a version number in the libxl save record;

- define libxl__physmap_info and use it to read/store information to the
buffer.


Stefano Stabellini (3):
      libxc: introduce XC_SAVE_ID_TOOLSTACK
      libxl: save/restore qemu's physmap
      libxl_qmp: remove libxl__qmp_migrate, introduce libxl__qmp_save

 tools/libxc/xc_domain_restore.c |   46 ++++++++++++-
 tools/libxc/xc_domain_save.c    |   17 +++++
 tools/libxc/xenguest.h          |   23 ++++++-
 tools/libxc/xg_save_restore.h   |    1 +
 tools/libxl/libxl_dom.c         |  143 ++++++++++++++++++++++++++++++++++++---
 tools/libxl/libxl_internal.h    |    2 +-
 tools/libxl/libxl_qmp.c         |   82 +---------------------
 tools/xcutils/xc_restore.c      |    2 +-
 8 files changed, 222 insertions(+), 94 deletions(-)


Cheers,

Stefano