Am 18.01.2012 15:40, schrieb Stefan Hajnoczi: > This series adds the 'block_stream' command which copies the contents of a > backing file into the image file while the VM is running. These patches are > based on Kevin Wolf's block tree. Previously this series was based on the > zero > detection series but Kevin pointed out there is no hard dependency, so they > are > now independent. > > The image streaming HMP/QMP commands are documented in the patch and also > described here: > > http://wiki.qemu.org/Features/LiveBlockMigration/ImageStreamingAPI > > The basic idea is to execute 'block_stream virtio0' while the guest is > running. > Progress can be monitored using 'info block-jobs'. When the streaming > operation completes it raises a QMP event. > > Note: The last patch includes includes a Python test script called > test-stream.py, I do not propose to merge it. When run in a QEMU source tree > it performs basic image streaming QMP tests. > > v6: > * Use per-request copy-on-read when doing partial streaming [Kevin] > > v5: > * Handle block_job_create() failure [Luiz] > * Mark BLOCK_JOB_COMPLETED error field optional [Luiz] > * Mark block_stream base parameter optional [Luiz] > * Check bdrv_getlength() failure and don't call twice [Kevin] > * Rename "id" to "backing_file" in bdrv_find_backing_image() [Kevin] > * Rename BaseIdNotFound qerror to BaseNotFound [Kevin] > * Document BaseNotFound qerror from block_stream > * Document that qemu_co_sleep_ns() needs main loop [Kevin] > * Make bdrv_co_is_allocated_base() private to block/stream.c [Kevin] > * Clean up commit messages > > v4: > * Drop SQMP/EQMP docs from qmp-commands.hx [Luiz] > * Follow QAPI doc conventions [Luiz] > * Document QMP events in QMP/qmp-events.txt [Luiz] > * Protect against hotplug, resize, eject, etc [Kevin] > * Move block job functions from header to block.c [Kevin] > * Return error from bdrg_change_backing_file() [Kevin] > * Merge Marcelo's block_stream base partial streaming series [Marcelo] > > Luiz has reviewed the QMP/QAPI parts, which remain unchanged from v5. > > Acked-by: Luiz Capitulino <lcapitul...@redhat.com> > > Marcelo Tosatti (4): > block: add bdrv_find_backing_image > add QERR_BASE_NOT_FOUND > block: add support for partial streaming > docs: describe live block operations > > Stefan Hajnoczi (12): > coroutine: add co_sleep_ns() coroutine sleep function > block: check bdrv_in_use() before blockdev operations > block: make copy-on-read a per-request flag > block: add BlockJob interface for long-running operations > block: add image streaming block job > block: rate-limit streaming operations > qmp: add block_stream command > qmp: add block_job_set_speed command > qmp: add block_job_cancel command > qmp: add query-block-jobs > blockdev: make image streaming safe across hotplug > test: add image streaming test cases > > Makefile.objs | 2 + > QMP/qmp-events.txt | 53 +++++++++ > block.c | 119 +++++++++++++++++++-- > block.h | 4 + > block/stream.c | 269 > +++++++++++++++++++++++++++++++++++++++++++++++ > block_int.h | 47 ++++++++ > blockdev.c | 199 ++++++++++++++++++++++++++++++++++- > docs/live-block-ops.txt | 58 ++++++++++ > hmp-commands.hx | 41 +++++++ > hmp.c | 68 ++++++++++++ > hmp.h | 4 + > monitor.c | 13 +++ > monitor.h | 2 + > qapi-schema.json | 116 ++++++++++++++++++++ > qemu-coroutine-sleep.c | 38 +++++++ > qemu-coroutine.h | 9 ++ > qerror.c | 8 ++ > qerror.h | 6 + > qmp-commands.hx | 24 ++++ > test-stream.py | 208 ++++++++++++++++++++++++++++++++++++ > trace-events | 12 ++- > 21 files changed, 1287 insertions(+), 13 deletions(-) > create mode 100644 block/stream.c > create mode 100644 docs/live-block-ops.txt > create mode 100644 qemu-coroutine-sleep.c > create mode 100644 test-stream.py >
Thanks, applied all to the block branch. Kevin
