[Qemu-devel] [PULL 00/57] Migration pull

[Juan Quintela <quintela@redhat.com>]

Hi

two items:

- Postcopy pull request (dave)
- fix for qemu_completion (Denis)

Please apply.

Thanks, Juan.


The following changes since commit ce278618b088afd10b91a05311eaeb6401bb5004:

  configure: Don't disable optimization for non-fortify builds (2015-11-09 16:28:09 +0000)

are available in the git repository at:

  git://github.com/juanquintela/qemu.git tags/migration/20151109

for you to fetch changes up to d1de612d6ed199a52a6f4823d89c1731c74edcb6:

  migration: qemu_savevm_state_cleanup becomes mandatory operation (2015-11-09 18:26:06 +0100)

----------------------------------------------------------------
migration/next for 20151109

----------------------------------------------------------------
Denis V. Lunev (1):
      migration: qemu_savevm_state_cleanup becomes mandatory operation

Dr. David Alan Gilbert (56):
      Add postcopy documentation
      Provide runtime Target page information
      Move configuration section writing
      Move page_size_init earlier
      qemu_ram_block_from_host
      qemu_ram_block_by_name
      Rename mis->file to from_src_file
      Add qemu_get_buffer_in_place to avoid copies some of the time
      Add wrapper for setting blocking status on a QEMUFile
      Add QEMU_MADV_NOHUGEPAGE
      ram_debug_dump_bitmap: Dump a migration bitmap as text
      ram_load: Factor out host_from_stream_offset call and check
      migrate_init: Call from savevm
      Rename save_live_complete to save_live_complete_precopy
      Add Linux userfaultfd.h header
      Return path: Open a return path on QEMUFile for sockets
      Return path: socket_writev_buffer: Block even on non-blocking fd's
      Migration commands
      Return path: Control commands
      Return path: Send responses from destination to source
      migration_is_setup_or_active
      Return path: Source handling of return path
      Rework loadvm path for subloops
      Add migration-capability boolean for postcopy-ram.
      Add wrappers and handlers for sending/receiving the postcopy-ram migration messages.
      MIG_CMD_PACKAGED: Send a packaged chunk of migration stream
      Modify save_live_pending for postcopy
      postcopy: OS support test
      migrate_start_postcopy: Command to trigger transition to postcopy
      migration_completion: Take current state
      MIGRATION_STATUS_POSTCOPY_ACTIVE: Add new migration state
      Avoid sending vmdescription during postcopy
      Add qemu_savevm_state_complete_postcopy
      Postcopy: Maintain unsentmap
      migration_completion: Take current state
      postcopy: Incoming initialisation
      postcopy: ram_enable_notify to switch on userfault
      Postcopy: Postcopy startup in migration thread
      Postcopy: End of iteration
      Page request: Add MIG_RP_MSG_REQ_PAGES reverse command
      Page request: Process incoming page request
      Page request: Consume pages off the post-copy queue
      postcopy_ram.c: place_page and helpers
      Postcopy: Use helpers to map pages during migration
      postcopy: Check order of received target pages
      Don't sync dirty bitmaps in postcopy
      Don't iterate on precopy-only devices during postcopy
      Host page!=target page: Cleanup bitmaps
      Round up RAMBlock sizes to host page sizes
      Postcopy; Handle userfault requests
      Start up a postcopy/listener thread ready for incoming page data
      postcopy: Wire up loadvm_postcopy_handle_ commands
      Postcopy: Mark nohugepage before discard
      End of migration for postcopy
      Disable mlock around incoming postcopy
      Inhibit ballooning during postcopy

 balloon.c                         |  11 +
 docs/migration.txt                | 191 ++++++++
 exec.c                            |  92 +++-
 hmp-commands.hx                   |  15 +
 hmp.c                             |   7 +
 hmp.h                             |   1 +
 hw/ppc/spapr.c                    |   2 +-
 hw/virtio/virtio-balloon.c        |   4 +-
 include/exec/cpu-common.h         |   4 +
 include/exec/exec-all.h           |   1 -
 include/exec/ram_addr.h           |   2 -
 include/migration/migration.h     | 121 ++++-
 include/migration/postcopy-ram.h  |  99 ++++
 include/migration/qemu-file.h     |  10 +
 include/migration/vmstate.h       |   8 +-
 include/qemu-common.h             |   1 +
 include/qemu/osdep.h              |   9 +
 include/qemu/typedefs.h           |   3 +
 include/sysemu/balloon.h          |   2 +
 include/sysemu/sysemu.h           |  46 +-
 kvm-all.c                         |   1 -
 linux-headers/linux/userfaultfd.h | 167 +++++++
 migration/Makefile.objs           |   2 +-
 migration/block.c                 |   9 +-
 migration/migration.c             | 723 +++++++++++++++++++++++++--
 migration/postcopy-ram.c          | 767 +++++++++++++++++++++++++++++
 migration/qemu-file-unix.c        | 111 ++++-
 migration/qemu-file.c             |  64 +++
 migration/ram.c                   | 999 +++++++++++++++++++++++++++++++++++---
 migration/savevm.c                | 825 +++++++++++++++++++++++++++----
 qapi-schema.json                  |  18 +-
 qmp-commands.hx                   |  19 +
 qtest.c                           |   1 -
 trace-events                      |  84 +++-
 vl.c                              |   1 +
 35 files changed, 4168 insertions(+), 252 deletions(-)
 create mode 100644 include/migration/postcopy-ram.h
 create mode 100644 linux-headers/linux/userfaultfd.h
 create mode 100644 migration/postcopy-ram.c