+ Gautam, Glenn

Hi Fabian,


On 8/19/25 08:25, Fabiano Rosas wrote:
Fabian Vogt <fv...@suse.de> writes:

+CC Peter

An obsolete wrapper function with a workaround was removed entirely,
without restoring the call it wrapped.

Without this, the guest is stuck after savevm/loadvm.


I'd note that this only affects guests that have actually negotiated
XICS, so guests using ic-mode=xive are safe.

Since this affected only guests using XICS, would it be a better idea to mention this explicitly in commit log as well (?


With this patch, backward migration to QEMU versions >= 9.2 is
broken. Which I can only assume is ok, since the hard break (vmstate
gets rejected) is better than weird post-migration hangs.

If the PPC folks can spot a scenario where migration would provide
reasonable results even without the emulated interrupt controller state
being migrated, then we'll need a compat property for this.

Also, a 9.2 guest cannot move to a more recent QEMU version without a
reboot. If this is an important scenario, then the new QEMU needs to
provide some compatibility knob.

Gautam, Glenn - thoughts on above comments?

Thanks for the patch.

regards,
Harsh


Otherwise:

Acked-by: Fabiano Rosas <faro...@suse.de>
Cc: qemu-sta...@nongnu.org

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