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