These patches put in place the image streaming QMP/HMP commands and documentation. Image streaming itself is not implemented by this patch series but the HMP/QMP commands that libvirt uses are implemented to return NotSupported.
The Image Streaming API can be used to copy the contents of a backing file into the image file while the guest is running. The API is described on the wiki: http://wiki.qemu.org/Features/LiveBlockMigration/ImageStreamingAPI The point of this series is to commit QEMU to the API that we have worked out with libvirt. The QED Image Streaming series that I posted earlier provides an implementation for the QED image format only. I am currently working on a generic block layer implementation so that any format with backing file support can do image streaming. For reference, the QED-specific implementation lives here: http://repo.or.cz/w/qemu/stefanha.git/shortlog/refs/heads/stream-command Stefan Hajnoczi (4): qmp: add block_stream command qmp: add block_job_set_speed command qmp: add block_job_cancel command qmp: add query-block-jobs blockdev.c | 55 ++++++++++++++++++ blockdev.h | 6 ++ hmp-commands.hx | 44 ++++++++++++++ monitor.c | 19 ++++++ monitor.h | 1 + qerror.h | 3 + qmp-commands.hx | 172 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 300 insertions(+), 0 deletions(-) -- 1.7.5.4