[Xen-devel] [PATCH 0 of 9] set migrate constraints from cmdline, better xend.log logging

[Olaf Hering <olaf@xxxxxxxxx>]

This series improves logging capabilities of xm migrate.
It also adds new options to xm/xl migrate to tweak the
max_iter/max_factor options passed to xc_domain_save. Being able to
tweak those knobs helps with migrating large and busy guests.

v3:
 - update "tools/xc: rework xc_save.c:switch_qemu_logdirty" v1 -> v2
 - add "tools/libxc: print stats if migration is aborted"
 - add "tools: set number of dirty pages during migration"
 - add "tools: notify restore to hangup during migration --abort_if_busy"

v2:
 - update "tools: set migration constraints from cmdline" v6 -> v7
 - add "tools/xend: move assert to exception block"
 - this iteration is not runtime tested, yet

Changes:
tools/xc: print messages from xc_save with xc_report
tools/xc: document printf calls in xc_restore
tools/xc: rework xc_save.c:switch_qemu_logdirty
tools: set migration constraints from cmdline
tools: add xm migrate --log_progress option
tools/xend: move assert to exception block
tools/libxc: print stats if migration is aborted
tools: set number of dirty pages during migration
tools: notify restore to hangup during migration --abort_if_busy

 docs/man/xl.pod.1                                    |   20 +++
 tools/libxc/Makefile                                 |    2 
 tools/libxc/xc_domain_restore.c                      |    4 
 tools/libxc/xc_domain_save.c                         |   20 ++-
 tools/libxc/xc_nomigrate.c                           |    2 
 tools/libxc/xc_private.h                             |    1 
 tools/libxc/xenguest.h                               |    4 
 tools/libxc/xg_save_restore.h                        |    1 
 tools/libxl/Makefile                                 |    2 
 tools/libxl/libxl.c                                  |   13 +-
 tools/libxl/libxl.h                                  |   22 +++
 tools/libxl/libxl_dom.c                              |    1 
 tools/libxl/libxl_internal.h                         |    4 
 tools/libxl/libxl_save_callout.c                     |    5 
 tools/libxl/libxl_save_helper.c                      |    5 
 tools/libxl/xl_cmdimpl.c                             |   41 +++++-
 tools/libxl/xl_cmdtable.c                            |   21 ++-
 tools/python/xen/lowlevel/checkpoint/libcheckpoint.c |    2 
 tools/python/xen/xend/XendCheckpoint.py              |   26 +++-
 tools/python/xen/xend/XendDomain.py                  |   14 ++
 tools/python/xen/xend/XendDomainInfo.py              |   16 ++
 tools/python/xen/xm/migrate.py                       |   26 ++++
 tools/xcutils/xc_restore.c                           |    1 
 tools/xcutils/xc_save.c                              |  123 ++++++++++---------
 24 files changed, 288 insertions(+), 88 deletions(-)


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