[PATCH v2] libxl: new hotplug calling convention

[Roger Pau Monne <roger.pau@citrix.com>]

This series implements a new hoplug calling convention for libxl.

The aim of this new convention is to reduce the blackout phase of 
migration when using complex hotplug scripts, like iSCSI or other kind 
of storage backends that might have a non trivial setup time.

Thanks for the comments, Roger.

Branch available in the git repository at:
  git://xenbits.xen.org/people/royger/xen.git iscsi_v2

* Acked

Roger Pau Monne (7):
     *libxl: group hotplug related variables
      libxl: add new hotplug interface support to hotplug script callers
      libxl: add support for hotplug interface v2 in domain creation/destroy
      libxl: chain prepare and attach in libxl_device_disk_add
      libxl: add disk specific remove functions
      libxl: add local attach support for new hotplug scripts
      hotplug/Linux: add iscsi block hotplug script

 docs/misc/libxl-hotplug-interface.txt |  179 +++++++++++++++++++
 tools/hotplug/Linux/Makefile          |    1 +
 tools/hotplug/Linux/block-iscsi       |  278 ++++++++++++++++++++++++++++++
 tools/libxl/libxl.c                   |  302 ++++++++++++++++++++++++++++++---
 tools/libxl/libxl_bootloader.c        |    1 +
 tools/libxl/libxl_create.c            |   32 ++++-
 tools/libxl/libxl_device.c            |  221 +++++++++++++++++++++---
 tools/libxl/libxl_internal.h          |   83 +++++++++-
 tools/libxl/libxl_linux.c             |   71 ++++++---
 tools/libxl/libxl_netbsd.c            |    4 +-
 tools/libxl/libxl_types.idl           |    1 +
 tools/libxl/libxl_types_internal.idl  |    5 +
 12 files changed, 1106 insertions(+), 72 deletions(-)
 create mode 100644 docs/misc/libxl-hotplug-interface.txt
 create mode 100644 tools/hotplug/Linux/block-iscsi