Configuration on IceLake

Torbjörn Granlund tg at
Mon Sep 6 20:58:53 UTC 2021

Arturo Fernandez <afernandez at> writes:

  I wasn't expecting Nehalem so my guess is that it doesn't recognize
  IceLake and is assigning some default value.

We let all unknown "model" numbers mean nehalem.  This is so that both
unknown low-end cores and unknown high-end cores will at least work.

There have been plans to refine this by checking various features (such
as AVX) and from the result match the closest known microarch.  E.g. if
a "model" number appears which has all the features of, say, skylake,
assume skylake.

Please encrypt, key id 0xC8601622

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