Comment 8 for bug 1673414

After testing on real hardware and full-virt based on kvm_hv and a clarification with Colin I wanted to make it more clear in the bug that this affects emulation via qemu-system-ppc64le, but not real virtualization.

To some extend that might also explain "I'm surprised we haven't hit this before!" as if it would have been in full virt as well that would have totally puzzled me.