RE: [PATCH v2 7/7] x86/resctrl: Determine if Sub-NUMA Cluster is enabled and initialize.

[Luck, Tony]

>> +static const struct x86_cpu_id snc_cpu_ids[] __initconst = {
>> +	X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X, 0),
>> +	X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X, 0),
>> +	X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X, 0),
>> +	{}
>> +};
>
> Cascade Lake and Skylake also seem to support Sub-NUMA cluster.
> At least in my environment(Intel(R) Xeon(R) Gold 6254 CPU @ 3.10GHz),
> Sub-NUMA cluster is supported.

Shaopeng TAN,

This is true. But MSR_RMID_SNC_CONFIG  (0xCA0) is not implemented
for CPUs before ICELAKE.

-Tony