* zhanghailiang (zhang.zhanghaili...@huawei.com) wrote: > This is the 17th version of COLO FT feature. > > Here is only COLO frame part, you can get the whole codes from github: > https://github.com/coloft/qemu/commits/colo-v3.0-periodic-mode > > Migration now switches to use the new QIOChannel API. It only affects COLO's > patch 9 and patch 12, which we used the old qsb buffer before, and we updated > them with the new API. It's only involving tiny changes. > > Patch status: > Unreviewed: patch 32 ~ 35 > Updated: patch 9, 12, 32
You've posted patches 1..34 - does 35 really exist? Dave > > Cc: Stefan Hajnoczi <stefa...@redhat.com> > Cc: Jeff Cody <jc...@redhat.com> > Cc: Kevin Wolf <kw...@redhat.com> > Cc: Max Reitz <mre...@redhat.com> > Cc: Juan Quintela <quint...@redhat.com> > Cc: Amit Shah <amit.s...@redhat.com> > Cc: Dr. David Alan Gilbert <dgilb...@redhat.com> > Cc: Jason Wang <jasow...@redhat.com> > > PS: These series has been in community for a long time, it depends on > Changlong's block-replicaton series, but that has been blocked for a long > time, we really need help on reviewing that and this series. Thanks. > > TODO: > 1. Checkpoint based on proxy in qemu > 2. The capability of continuous FT > 3. Optimize the VM's downtime during checkpoint > > v17: > - Rebase master to use the new QIOChannel API, only affect patch 9 and 12 > - Reorganize some ugly comments > - Rename colo_sem to colo_exit_sem (patch 21) > > v16: > - Fix compile broken due to missing osdep.h > - Add reviewed-by tag for patch 27, 28, 29 > - Rename the message send/receive helper function (patch 7, 13) > - Simplify the codes by using some notifier helpers in QEMU (patch 32) > - Remove the useless check in colo_add_buffer_filter() (patch 33) > - Remove the previous patch 36, 37 which export filter_buffer_flush() > to release the buffered packets, we simplify it by stopping buffer > filter while doing checkpoint, which will flush the buffered packets > by default. (patch 34) > v15: > - Go on the shutdown process if encounter error while sending shutdown > message to SVM. (patch 24) > - Rename qemu_need_skip_netfilter to qemu_netfilter_can_skip and Remove > some useless comment. (patch 31, Jason) > - Call object_new_with_props() directly to add filter in > colo_add_buffer_filter. (patch 34, Jason) > - Re-implement colo_set_filter_status() based on COLOBufferFilters > list. (patch 35) > - Re-implement colo_flush_filter_packets() based on COLOBufferFilters > list. (patch 37) > v14: > - Re-implement the network processing based on netfilter (Jason Wang) > - Rename 'COLOCommand' to 'COLOMessage'. (Markus's suggestion) > - Split two new patches (patch 27/28) from patch 29 > - Fix some other comments from Dave and Markus. > > v13: > - Refactor colo_*_cmd helper functions to use 'Error **errp' parameter > instead of return value to indicate success or failure. (patch 10) > - Remove the optional error message for COLO_EXIT event. (patch 25) > - Use semaphore to notify colo/colo incoming loop that failover work is > finished. (patch 26) > - Move COLO shutdown related codes to colo.c file. (patch 28) > - Fix memory leak bug for colo incoming loop. (new patch 31) > - Re-use some existed helper functions to realize the process of > saving/loading ram and device. (patch 32) > - Fix some other comments from Dave and Markus. > > > zhanghailiang (34): > configure: Add parameter for configure to enable/disable COLO support > migration: Introduce capability 'x-colo' to migration > COLO: migrate colo related info to secondary node > migration: Integrate COLO checkpoint process into migration > migration: Integrate COLO checkpoint process into loadvm > COLO/migration: Create a new communication path from destination to > source > COLO: Implement COLO checkpoint protocol > COLO: Add a new RunState RUN_STATE_COLO > COLO: Save PVM state to secondary side when do checkpoint > COLO: Load PVM's dirty pages into SVM's RAM cache temporarily > ram/COLO: Record the dirty pages that SVM received > COLO: Load VMState into buffer before restore it > COLO: Flush PVM's cached RAM into SVM's memory > COLO: Add checkpoint-delay parameter for migrate-set-parameters > COLO: Synchronize PVM's state to SVM periodically > COLO failover: Introduce a new command to trigger a failover > COLO failover: Introduce state to record failover process > COLO: Implement failover work for Primary VM > COLO: Implement failover work for Secondary VM > qmp event: Add COLO_EXIT event to notify users while exited from COLO > COLO failover: Shutdown related socket fd when do failover > COLO failover: Don't do failover during loading VM's state > COLO: Process shutdown command for VM in COLO state > COLO: Update the global runstate after going into colo state > savevm: Introduce two helper functions for save/find loadvm_handlers > entry > migration/savevm: Add new helpers to process the different stages of > loadvm > migration/savevm: Export two helper functions for savevm process > COLO: Separate the process of saving/loading ram and device state > COLO: Split qemu_savevm_state_begin out of checkpoint process > filter-buffer: Accept zero interval > net: Add notifier/callback for netdev init > COLO/filter: Add each netdev a buffer filter > COLO: Control the status of buffer filters for PVM > COLO: Add block replication into colo process > > configure | 11 + > docs/qmp-events.txt | 16 + > hmp-commands.hx | 15 + > hmp.c | 15 + > hmp.h | 1 + > include/exec/ram_addr.h | 1 + > include/migration/colo.h | 43 +++ > include/migration/failover.h | 33 ++ > include/migration/migration.h | 16 + > include/net/filter.h | 2 + > include/net/net.h | 3 + > include/sysemu/sysemu.h | 9 + > migration/Makefile.objs | 2 + > migration/colo-comm.c | 79 ++++ > migration/colo-failover.c | 84 +++++ > migration/colo.c | 844 > ++++++++++++++++++++++++++++++++++++++++++ > migration/migration.c | 84 ++++- > migration/ram.c | 175 ++++++++- > migration/savevm.c | 114 ++++-- > net/filter-buffer.c | 12 - > net/net.c | 12 + > qapi-schema.json | 102 ++++- > qapi/event.json | 15 + > qmp-commands.hx | 24 +- > stubs/Makefile.objs | 1 + > stubs/migration-colo.c | 55 +++ > trace-events | 8 + > vl.c | 31 +- > 28 files changed, 1744 insertions(+), 63 deletions(-) > create mode 100644 include/migration/colo.h > create mode 100644 include/migration/failover.h > create mode 100644 migration/colo-comm.c > create mode 100644 migration/colo-failover.c > create mode 100644 migration/colo.c > create mode 100644 stubs/migration-colo.c > > -- > 1.8.3.1 > > -- Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK