>> +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