> Thank you very much for the suggestion.
>
> Yes, this works. The PERFCORE is a prerequisite of PERFMON_V2 (according to
> Linux kernel source code).
>
> 1403 static int __init amd_core_pmu_init(void)
> 1404 {
> 1405 union cpuid_0x80000022_ebx ebx;
> 1406 u64 even_ctr_mask = 0ULL;
> 1407 int i;
> 1408
> 1409 if (!boot_cpu_has(X86_FEATURE_PERFCTR_CORE))
> 1410 return 0;
>
>
> If you don't mind, I will send the v2 with your Suggested-by.
>
> Thank you very much!
Sure, welcome! :)
-Zhao
> Dongli Zhang
