Comment 9 for bug 453495

This does not appear to be fixed, at least for mips:

$ virsh capabilities
...
  <guest>
    <os_type>hvm</os_type>
    <arch name='mips'>
      <wordsize>32</wordsize>
      <emulator>/usr/bin/qemu-system-mips</emulator>
      <machine>malta</machine>
      <machine>mipssim</machine>
      <machine>magnum</machine>
      <machine>pica61</machine>
      <machine>mips</machine>
      <domain type='qemu'>
      </domain>
    </arch>
  </guest>
...

$ ps auxww|grep qemu
root 14157 9.0 0.4 549980 17084 ? S 07:43 0:00 /usr/bin/qemu-system-x86_64 -S -M pc-0.12 -no-kvm -m 256 -smp 1 -name test453495 -uuid 263c27b0-26be-aa22-463b-fe94e7b2c4c2 -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/test453495.monitor,server,nowait -monitor chardev:monitor -no-reboot -boot n -drive file=/var/lib/libvirt/images/test453495-1.img,if=ide,index=0,format=raw -net nic,macaddr=52:54:00:40:44:6b,vlan=0,name=nic.0 -net tap,fd=42,vlan=0,name=tap.0 -chardev pty,id=serial0 -serial chardev:serial0 -parallel none -usb -vnc 127.0.0.1:1 -k en-us -vga cirrus -soundhw es1370

I tried arm, but it used '-soundhw es1370' which traced back with an error about es1370 being unknown hardware.

I tried powerpc, but ran into bug #541524 (ie, no available bios).