* Avocado tests for ppc64 to boot FreeBSD, run guests with emulated or nested hypervisor facilities, among other things. * Update ppc64 CPU defaults to Power10. * Add a new powernv10-rainier machine to better capture differences between the different Power10 systems. * Implement more device models for powernv. * 4xx TLB flushing performance and correctness improvements. * Correct gdb implementation to access some important SPRs. * Misc cleanups and bug fixes.