Remove cppc
from the zen5 feature list
#131
Open
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Motivations for taking
cppc
out:There's no upstream support in KVM for this AMD feature, so this won't be trivial to support for KVM-based virtualization. Plus AFAIK this feature isn't used in Linux yet.
This does not seem to be something a compiler would use. For instance this is not included in GCC's znver5 list: https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html.
There are other existing features that can tell zen5 apart from previous zen generations, for instance
avx_vnni
andmovdiri
, so the removal won't impact correct identification.