On Wed, Nov 25, 2015 at 15:22:08 +0100, Pavel Hrdina wrote: > On Wed, Nov 25, 2015 at 10:29:32AM +0100, Jiri Denemark wrote: > > Traditionally, we pass incoming migration URI on QEMU command line, > > which has some drawbacks. Depending on the URI QEMU may initialize its > > migration state immediately without giving us a chance to set any > > additional migration parameters (this applies mainly for fd: URIs). For > > some URIs the monitor may be completely blocked from the beginning until > > migration is finished, which means we may be stuck in qmp_capabilities > > command without being able to send any QMP commands. > > > > QEMU solved this by introducing "defer" parameter for -incoming command > > line option. This will tell QEMU to prepare for an incoming migration > > while the actual incoming URI is sent using migrate-incoming QMP > > command. Before calling this command we can normally talk to the > > monitor and even set any migration parameters which will be honored by > > the incoming migration. > > > > Jiri Denemark (7): > > qemu: Introduce qemuProcessInit > > qemu: Introduce qemuProcessLaunch > > qemu: Introduce qemuProcessFinishStartup > > qemu: Separate incoming URI generation from qemuMigrationPrepareAny > > qemu: Kill QEMU process if Prepare phase fails > > qemu: Skip starting NBD servers for offline migration > > qemu: Use qemuProcessLaunch in migration Prepare phase > > > > src/qemu/qemu_migration.c | 247 +++++++++++++---------- > > src/qemu/qemu_process.c | 489 +++++++++++++++++++++++++++++----------------- > > src/qemu/qemu_process.h | 20 ++ > > 3 files changed, 466 insertions(+), 290 deletions(-) > > ACK series Thanks, pushed. Jirka -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list