- smp_call_function(setup_APIC_ibs, NULL, 1);
- __perf_cpu_notifier(perf_ibs_cpu_notifier);
- cpu_notifier_register_done();
+ /*
+ * x86_pmu_amd_ibs_starting_cpu will be called from core on
+ * all online cpus.
+ */
+ cpuhp_setup_state(CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
+ "AP_PERF_X86_AMD_IBS_STARTING",
+ x86_pmu_amd_ibs_starting_cpu,
+ x86_pmu_amd_ibs_dying_cpu);