Comment 20 for bug 1829555

E.g. in /proc/cpuinfo the whole section is missing:
  bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds
^^ this is not there when "Not affected" is reported

Separating kernels:
3.13 on both: Works
4.4 on lvl1, 3.13 on lvl2: Fail
3.13 on lvl1, 4.4 on lvl2: Works

So it is only with the 4.4 kernel on lvl1.
I'll take a look to combine that with some qemu versions tomorrow.