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[Xen-devel] [PATCH v9 00/15] Migration v2 (libxc)



Presented here is v9 of the Migration v2 series (libxc subset), which is able
to function when transparently inserted under an unmodified xl/libxl.

The main purpose of v9 is to rebase over the build issue caused by 341fac7b
"xen/mem_event: Cleanup mem_event names in rings, functions and domctls"
renaming one of the HVM parameters.  In addition, there are a couple of
bugfixes spotted by Coverity, and some refactoring of a few "mfn" variables
which should have been "gfn".  No major changes from v8.

This series can be found on a 'saverestore2-v9' 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.

  Patches 1 and 2 are prerequisites
  Patches 3 to 13 are the meat of the series
  Patch 14 is the design document
  Patch 15 is the compat layer for unmodified libxl

Please experiment!

~Andrew

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