[libvirt] [PATCH v3 0/7] qemu: Add support for -incoming defer

[Jiri Denemark]

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