MSR_IA32_PMC0    5162 arch/x86/events/intel/core.c 		x86_pmu.perfctr = MSR_IA32_PMC0;
MSR_IA32_PMC0      63 arch/x86/xen/pmu.c #define MSR_PMC_ALIAS_MASK          (~(MSR_IA32_PERFCTR0 ^ MSR_IA32_PMC0))