Separate names with a comma.
Yes that commit revealed the bug in parallels I posted the reason in...
I have posted the reason for this in the below thread https://forum.parallels.com/threads/official-ubuntu-20-04-live-server-does-not-boot.356891/...
That is to say unimplemented CPUID system registers should RAZ/WI not all unimplemented system registers.
If anyone from parallels is listening this is probably because the newer kernels contain this kernel commit commit...