On Powermacs I use linuxppc to run qemu.
For latest 5.2 release I had to resolve many new dependencies to let it compile, anyway it works but it's too slow in sam460ex and powerpc emulation.
With pegasos2 board "should" be finally possible to virtualize cpu via KVM and run at full speed.

NB:
Both powermacs and pegasos2 share the same cpu (book3s) so virtualizations is possible, sadly with sam460ex the emulated cpu belongs to a different family (book3e) and thus it had to be emulated with a huge slowdown.