PowerKVM is the more mature of the two since it provides a firmware and hypervisor interface matching previous POWER systems. It is available on all supported FreeBSD releases.

The following incantations are sufficient to bring up FreeBSD on an Ubuntu 14.10 host:

root@ubuntu:~# ppc64_cpu --smt=off
root@ubuntu:~# modprobe -a kvm-hv
root@ubuntu:~# echo 100 > /proc/sys/vm/nr_hugepages
root@ubuntu:~# mkdir /dev/hugepages
root@ubuntu:~# mount -t hugetlbfs huge /dev/hugepages
root@ubuntu:~# qemu-system-ppc64 -enable-kvm -m 1536 -nographic -vga none -cdrom FreeBSD.iso -mem-prealloc -mem-path /dev/hugepages -smp cores=3 threads=8

PowerNV support has been merged to HEAD and is accessible since r330240

• Basic architecture support
  • Memory Management Unit
  • Interrupts
  • System timers
  • OPAL console
• SMP, up to 128 CPUs were tested
• Multiuser environment
• PCIe bus with IOMMU and full IO cache coherency
• USB XHCI controller
• Device drivers:
  • Chelsio cxgbe(4)
  • NVMe SSD
• OPAL I2C and RTC drivers
• Deep sleep modes for idle cores

• IPMI problem