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Re: [Xen-devel] [PATCH v2 00/27] Libxl migration v2
On 07/10/2015 02:26 AM, Andrew Cooper wrote:
This series adds support for the libxl migration v2 stream, and untangles the
existing layering violations of the toolstack and qemu records.
It can be found on the branch "libxl-migv2-v2"
git://xenbits.xen.org/people/andrewcoop/xen.git
http://xenbits.xen.org/git-http/people/andrewcoop/xen.git
Major changes in v2 are being rebased over the libxl AO-abort series, and a
redesign of the internal logic to support Remus/COLO buffering and failover.
Great! I've read the series, the redesigned logic seems correct to me, I will
rebase COLO series and test to see if it will work, thanks!
At the end of the series, legacy migration is no longer used.
The Remus code is untested by me. All other combinations of
suspend/migrate/resume have been tested with PV and HVM guests (qemu-trad and
qemu-upstream), including 32 -> 64 bit migration (which was the underlying bug
causing us to write migration v2 in the first place).
Anyway, thoughts/comments welcome. Please test!
~Andrew
Summary of Acks/Modified/New from v1
N bsd-sys-queue-h-seddery: Massage `offsetof'
A tools/libxc: Always compile the compat qemu variables into xc_sr_context
A tools/libxl: Introduce ROUNDUP()
N tools/libxl: Introduce libxl__kill()
AM tools/libxl: Stash all restore parameters in domain_create_state
N tools/libxl: Split libxl__domain_create_state.restore_fd in two
M tools/libxl: Extra management APIs for the save helper
AM tools/xl: Mandatory flag indicating the format of the migration stream
docs: Libxl migration v2 stream specification
AM tools/python: Libxc migration v2 infrastructure
AM tools/python: Libxl migration v2 infrastructure
N tools/python: Other migration infrastructure
AM tools/python: Verification utility for v2 stream spec compliance
AM tools/python: Conversion utility for legacy migration streams
M tools/libxl: Migration v2 stream format
M tools/libxl: Infrastructure for reading a libxl migration v2 stream
M tools/libxl: Support converting a legacy stream to a v2 stream
M tools/libxl: Convert a legacy stream if needed
M tools/libxc+libxl+xl: Restore v2 streams
M tools/libxl: Infrastructure for writing a v2 stream
M tools/libxc+libxl+xl: Save v2 streams
AM docs/libxl: Introduce CHECKPOINT_END to support migration v2 remus streams
M tools/libxl: Write checkpoint records into the stream
M tools/libx{c,l}: Introduce restore_callbacks.checkpoint()
M tools/libxl: Handle checkpoint records in a libxl migration v2 stream
A tools/libxc: Drop all XG_LIBXL_HVM_COMPAT code from libxc
A tools/libxl: Drop all knowledge of toolstack callbacks
Andrew Cooper (23):
tools/libxc: Always compile the compat qemu variables into xc_sr_context
tools/libxl: Introduce ROUNDUP()
tools/libxl: Introduce libxl__kill()
tools/libxl: Stash all restore parameters in domain_create_state
tools/libxl: Split libxl__domain_create_state.restore_fd in two
tools/libxl: Extra management APIs for the save helper
tools/xl: Mandatory flag indicating the format of the migration stream
docs: Libxl migration v2 stream specification
tools/python: Libxc migration v2 infrastructure
tools/python: Libxl migration v2 infrastructure
tools/python: Other migration infrastructure
tools/python: Verification utility for v2 stream spec compliance
tools/python: Conversion utility for legacy migration streams
tools/libxl: Support converting a legacy stream to a v2 stream
tools/libxl: Convert a legacy stream if needed
tools/libxc+libxl+xl: Restore v2 streams
tools/libxc+libxl+xl: Save v2 streams
docs/libxl: Introduce CHECKPOINT_END to support migration v2 remus streams
tools/libxl: Write checkpoint records into the stream
tools/libx{c,l}: Introduce restore_callbacks.checkpoint()
tools/libxl: Handle checkpoint records in a libxl migration v2 stream
tools/libxc: Drop all XG_LIBXL_HVM_COMPAT code from libxc
tools/libxl: Drop all knowledge of toolstack callbacks
Ian Jackson (1):
bsd-sys-queue-h-seddery: Massage `offsetof'
Ross Lagerwall (3):
tools/libxl: Migration v2 stream format
tools/libxl: Infrastructure for reading a libxl migration v2 stream
tools/libxl: Infrastructure for writing a v2 stream
docs/specs/libxl-migration-stream.pandoc | 217 ++++++
tools/include/xen-external/bsd-sys-queue-h-seddery | 2 +
tools/libxc/Makefile | 2 -
tools/libxc/include/xenguest.h | 9 +
tools/libxc/xc_sr_common.h | 12 +-
tools/libxc/xc_sr_restore.c | 71 +-
tools/libxc/xc_sr_restore_x86_hvm.c | 124 ----
tools/libxc/xc_sr_save_x86_hvm.c | 36 -
tools/libxl/Makefile | 2 +
tools/libxl/libxl.h | 19 +
tools/libxl/libxl_aoutils.c | 15 +
tools/libxl/libxl_convert_callout.c | 172 +++++
tools/libxl/libxl_create.c | 86 ++-
tools/libxl/libxl_dom.c | 65 +-
tools/libxl/libxl_internal.h | 192 ++++-
tools/libxl/libxl_save_callout.c | 70 +-
tools/libxl/libxl_save_helper.c | 33 +-
tools/libxl/libxl_save_msgs_gen.pl | 9 +-
tools/libxl/libxl_sr_stream_format.h | 58 ++
tools/libxl/libxl_stream_read.c | 731 ++++++++++++++++++++
tools/libxl/libxl_stream_write.c | 554 +++++++++++++++
tools/libxl/libxl_types.idl | 1 +
tools/libxl/xl_cmdimpl.c | 9 +-
tools/python/Makefile | 4 +
tools/python/scripts/convert-legacy-stream | 678 ++++++++++++++++++
tools/python/scripts/verify-stream-v2 | 174 +++++
tools/python/setup.py | 1 +
tools/python/xen/migration/legacy.py | 279 ++++++++
tools/python/xen/migration/libxc.py | 446 ++++++++++++
tools/python/xen/migration/libxl.py | 199 ++++++
tools/python/xen/migration/public.py | 21 +
tools/python/xen/migration/tests.py | 54 ++
tools/python/xen/migration/verify.py | 37 +
tools/python/xen/migration/xl.py | 12 +
34 files changed, 4014 insertions(+), 380 deletions(-)
create mode 100644 docs/specs/libxl-migration-stream.pandoc
create mode 100644 tools/libxl/libxl_convert_callout.c
create mode 100644 tools/libxl/libxl_sr_stream_format.h
create mode 100644 tools/libxl/libxl_stream_read.c
create mode 100644 tools/libxl/libxl_stream_write.c
create mode 100755 tools/python/scripts/convert-legacy-stream
create mode 100755 tools/python/scripts/verify-stream-v2
create mode 100644 tools/python/xen/migration/__init__.py
create mode 100644 tools/python/xen/migration/legacy.py
create mode 100644 tools/python/xen/migration/libxc.py
create mode 100644 tools/python/xen/migration/libxl.py
create mode 100644 tools/python/xen/migration/public.py
create mode 100644 tools/python/xen/migration/tests.py
create mode 100644 tools/python/xen/migration/verify.py
create mode 100644 tools/python/xen/migration/xl.py
--
Thanks,
Yang.
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