On Thu, Feb 18, 2016 at 12:32:11PM +0100, Greg Kurz wrote: > QEMU 2.4 broke the migration of old pseries machine with the addition > of configuration sections, which are sent unconditionally. > > We assume that QEMU 2.3 is more deployed than any newer release (based on > the versions currently shipped by most distros). This v3 series hence > reverses the logic from v2: it now fully fixes migration of old pseries > from/to QEMU 2.3 and provides a manual workaround for the QEMU 2.4/2.4.1/2.5 > case. > > With this series, I could migrate the same pseries-2.3 instance in a full > 2.3->2.6->2.5->2.6->2.4->2.6->2.3 cycle.
Sorry, I've lost track slightly here. Does this series apply on top
of, or instead of your earlier series that peeks for the config
section?
> ---
>
> Greg Kurz (2):
> spapr: skip configuration section during migration of older machines
> migration: allow machine to enforce configuration section migration
>
>
> hw/core/machine.c | 21 +++++++++++++++++++++
> hw/ppc/spapr.c | 1 +
> include/hw/boards.h | 1 +
> migration/savevm.c | 10 ++++++++--
> qemu-options.hx | 3 ++-
> 5 files changed, 33 insertions(+), 3 deletions(-)
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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