/usr/share/qemu/spapr-rtas.bin is in qemu-system-ppc 2.0.0~rc1+dfsg-0ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/qemu/../slof/spapr-rtas.bin
/usr/share/qemu/../slof/spapr-rtas.bin