Re: [PATCH v3] x86/intel: insert Ice Lake-X (server) and Ice Lake-D model numbers

[Jan Beulich <jbeulich@xxxxxxxx>]

On 23.12.2020 21:32, Igor Druzhinin wrote:
> LBR, C-state MSRs should correspond to Ice Lake desktop according to
> External Design Specification vol.2 for both models.
> 
> Ice Lake-X is known to expose IF_PSCHANGE_MC_NO in IA32_ARCH_CAPABILITIES MSR
> (confirmed on Whitley SDP) which means the erratum is fixed in hardware for
> that model and therefore it shouldn't be present in has_if_pschange_mc list.
> Provisionally assume the same to be the case for Ice Lake-D.

I did find Ice Lake D EDS, and it confirms the respective additions.
In the course I also found the "plain" Ice Lake EDS, and it seems to
contradict SDM vol 4 in that it doesn't list CC3_RESIDENCY (0x3FC).
For now I guess we can consider this a doc error.

I didn't find Ice Lake-X EDS, though.

Jan