[Xen-devel] [PATCH v10 00/15] Migration v2 (libxc)

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

Presented here is v10 of the Migration v2 series (libxc subset), which is able
to function when transparently inserted under an unmodified xl/libxl.

There are no major changes from v9.  A docs subseries has been completed in
parallel and removed from this series, and liberal quantities of spell
checking has occured.  A summary of changes: (M = modified, A = acked)

 A tools/libxc: Implement writev_exact() in the same style as write_exact()
M  libxc/progress: Extend the progress interface
 A tools/libxc: Migration v2 framework
 A tools/libxc: C implementation of stream format
 A tools/libxc: generic common code
 A tools/libxc: x86 common code
 A tools/libxc: x86 PV common code
MA tools/libxc: x86 PV save code
M  tools/libxc: x86 PV restore code
 A tools/libxc: x86 HVM save code
MA tools/libxc: x86 HVM restore code
 A tools/libxc: common save code
 A tools/libxc: common restore code
 A docs: libxc migration stream specification
 A tools/libxc: Migration v2 compatibility for unmodified libxl


This series can be found on a 'saverestore2-v10' at
  http://xenbits.xen.org/git-http/people/andrewcoop/xen.git

To experiment, simply set XG_MIGRATION_V2 in xl's environment.  For migration,
the easiest way is to tweak libxl-save-helper to be a shell script

  root@vitruvias:/home# cat /usr/lib/xen/bin/libxl-save-helper
  #!/bin/bash
  export XG_MIGRATION_V2=x
  exec /usr/lib/xen/bin/libxl-save-helper.bin "$@"

which will ensure that XG_MIGRATION_V2 gets set in the environment for both
the source and destination of migration.

Please experiment!

~Andrew

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