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CONFIG_HV_PERF_CTRS: Hypervisor supplied PMU events (24x7 & GPCI)

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The Linux kernel configuration item CONFIG_HV_PERF_CTRS:

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Enable access to hypervisor supplied counters in perf. Currently, this enables code that uses the hcall GetPerfCounterInfo and 24x7 interfaces to retrieve counters. GPCI exists on Power 6 and later systems. 24x7 is available on Power 8 systems.

If unsure, select Y.



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