61 	int cpu;  in cpu_bringup()  local
74 	cpu = smp_processor_id();  in cpu_bringup()
75 	smp_store_cpu_info(cpu);  in cpu_bringup()
76 	cpu_data(cpu).x86_max_cores = 1;  in cpu_bringup()
77 	set_cpu_sibling_map(cpu);  in cpu_bringup()
83 	notify_cpu_starting(cpu);  in cpu_bringup()
85 	set_cpu_online(cpu, true);  in cpu_bringup()
99 void xen_smp_intr_free_pv(unsigned int cpu)  in xen_smp_intr_free_pv()  argument
101 	kfree(per_cpu(xen_irq_work, cpu).name);  in xen_smp_intr_free_pv()
102 	per_cpu(xen_irq_work, cpu).name = NULL;  in xen_smp_intr_free_pv()
103 	if (per_cpu(xen_irq_work, cpu).irq >= 0) {  in xen_smp_intr_free_pv()
104 		unbind_from_irqhandler(per_cpu(xen_irq_work, cpu).irq, NULL);  in xen_smp_intr_free_pv()
105 		per_cpu(xen_irq_work, cpu).irq = -1;  in xen_smp_intr_free_pv()
108 	kfree(per_cpu(xen_pmu_irq, cpu).name);  in xen_smp_intr_free_pv()
109 	per_cpu(xen_pmu_irq, cpu).name = NULL;  in xen_smp_intr_free_pv()
110 	if (per_cpu(xen_pmu_irq, cpu).irq >= 0) {  in xen_smp_intr_free_pv()
111 		unbind_from_irqhandler(per_cpu(xen_pmu_irq, cpu).irq, NULL);  in xen_smp_intr_free_pv()
112 		per_cpu(xen_pmu_irq, cpu).irq = -1;  in xen_smp_intr_free_pv()
116 int xen_smp_intr_init_pv(unsigned int cpu)  in xen_smp_intr_init_pv()  argument
121 	callfunc_name = kasprintf(GFP_KERNEL, "irqwork%d", cpu);  in xen_smp_intr_init_pv()
122 	per_cpu(xen_irq_work, cpu).name = callfunc_name;  in xen_smp_intr_init_pv()
124 				    cpu,  in xen_smp_intr_init_pv()
131 	per_cpu(xen_irq_work, cpu).irq = rc;  in xen_smp_intr_init_pv()
134 		pmu_name = kasprintf(GFP_KERNEL, "pmu%d", cpu);  in xen_smp_intr_init_pv()
135 		per_cpu(xen_pmu_irq, cpu).name = pmu_name;  in xen_smp_intr_init_pv()
136 		rc = bind_virq_to_irqhandler(VIRQ_XENPMU, cpu,  in xen_smp_intr_init_pv()
142 		per_cpu(xen_pmu_irq, cpu).irq = rc;  in xen_smp_intr_init_pv()
148 	xen_smp_intr_free_pv(cpu);  in xen_smp_intr_init_pv()
212 	unsigned cpu;  in xen_pv_smp_prepare_cpus()  local
243 		for (cpu = nr_cpu_ids - 1; !cpu_possible(cpu); cpu--)  in xen_pv_smp_prepare_cpus()
245 		set_cpu_possible(cpu, false);  in xen_pv_smp_prepare_cpus()
248 	for_each_possible_cpu(cpu)  in xen_pv_smp_prepare_cpus()
249 		set_cpu_present(cpu, true);  in xen_pv_smp_prepare_cpus()
253 cpu_initialize_context(unsigned int cpu, struct task_struct *idle)  in cpu_initialize_context()  argument
259 	if (cpumask_test_and_set_cpu(cpu, xen_cpu_initialized_map))  in cpu_initialize_context()
264 		cpumask_clear_cpu(cpu, xen_cpu_initialized_map);  in cpu_initialize_context()
268 	gdt = get_cpu_gdt_rw(cpu);  in cpu_initialize_context()
303 	ctxt->gs_base_kernel = per_cpu_offset(cpu);  in cpu_initialize_context()
308 	per_cpu(xen_cr3, cpu) = __pa(swapper_pg_dir);  in cpu_initialize_context()
311 	if (HYPERVISOR_vcpu_op(VCPUOP_initialise, xen_vcpu_nr(cpu), ctxt))  in cpu_initialize_context()
318 static int xen_pv_kick_ap(unsigned int cpu, struct task_struct *idle)  in xen_pv_kick_ap()  argument
322 	rc = common_cpu_up(cpu, idle);  in xen_pv_kick_ap()
326 	xen_setup_runstate_info(cpu);  in xen_pv_kick_ap()
329 	per_cpu(xen_vcpu, cpu)->evtchn_upcall_mask = 1;  in xen_pv_kick_ap()
331 	rc = cpu_initialize_context(cpu, idle);  in xen_pv_kick_ap()
335 	xen_pmu_init(cpu);  in xen_pv_kick_ap()
341 	BUG_ON(HYPERVISOR_vcpu_op(VCPUOP_up, xen_vcpu_nr(cpu), NULL));  in xen_pv_kick_ap()
354 	unsigned int cpu = smp_processor_id();  in xen_pv_cpu_disable()  local
355 	if (cpu == 0)  in xen_pv_cpu_disable()
364 static void xen_pv_cpu_die(unsigned int cpu)  in xen_pv_cpu_die()  argument
366 	while (HYPERVISOR_vcpu_op(VCPUOP_is_up, xen_vcpu_nr(cpu), NULL)) {  in xen_pv_cpu_die()
372 static void xen_pv_cleanup_dead_cpu(unsigned int cpu)  in xen_pv_cleanup_dead_cpu()  argument
374 	xen_smp_intr_free(cpu);  in xen_pv_cleanup_dead_cpu()
375 	xen_uninit_lock_cpu(cpu);  in xen_pv_cleanup_dead_cpu()
376 	xen_teardown_timer(cpu);  in xen_pv_cleanup_dead_cpu()
377 	xen_pmu_finish(cpu);  in xen_pv_cleanup_dead_cpu()
394 static void xen_pv_cpu_die(unsigned int cpu)  in xen_pv_cpu_die()  argument
399 static void xen_pv_cleanup_dead_cpu(unsigned int cpu)  in xen_pv_cleanup_dead_cpu()  argument
412 	int cpu = smp_processor_id();  in stop_self()  local
418 	set_cpu_online(cpu, false);  in stop_self()
420 	HYPERVISOR_vcpu_op(VCPUOP_down, xen_vcpu_nr(cpu), NULL);  in stop_self()