62 	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()
87 	cpu_set_state_online(cpu);  /* Implies full memory barrier. */  in cpu_bringup()
99 void xen_smp_intr_free_pv(unsigned int cpu)  in xen_smp_intr_free_pv()  argument
101 	if (per_cpu(xen_irq_work, cpu).irq >= 0) {  in xen_smp_intr_free_pv()
102 		unbind_from_irqhandler(per_cpu(xen_irq_work, cpu).irq, NULL);  in xen_smp_intr_free_pv()
103 		per_cpu(xen_irq_work, cpu).irq = -1;  in xen_smp_intr_free_pv()
104 		kfree(per_cpu(xen_irq_work, cpu).name);  in xen_smp_intr_free_pv()
105 		per_cpu(xen_irq_work, cpu).name = NULL;  in xen_smp_intr_free_pv()
108 	if (per_cpu(xen_pmu_irq, cpu).irq >= 0) {  in xen_smp_intr_free_pv()
109 		unbind_from_irqhandler(per_cpu(xen_pmu_irq, cpu).irq, NULL);  in xen_smp_intr_free_pv()
110 		per_cpu(xen_pmu_irq, cpu).irq = -1;  in xen_smp_intr_free_pv()
111 		kfree(per_cpu(xen_pmu_irq, cpu).name);  in xen_smp_intr_free_pv()
112 		per_cpu(xen_pmu_irq, cpu).name = NULL;  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()
123 				    cpu,  in xen_smp_intr_init_pv()
130 	per_cpu(xen_irq_work, cpu).irq = rc;  in xen_smp_intr_init_pv()
131 	per_cpu(xen_irq_work, cpu).name = callfunc_name;  in xen_smp_intr_init_pv()
133 	if (is_xen_pmu(cpu)) {  in xen_smp_intr_init_pv()
134 		pmu_name = kasprintf(GFP_KERNEL, "pmu%d", cpu);  in xen_smp_intr_init_pv()
135 		rc = bind_virq_to_irqhandler(VIRQ_XENPMU, cpu,  in xen_smp_intr_init_pv()
141 		per_cpu(xen_pmu_irq, cpu).irq = rc;  in xen_smp_intr_init_pv()
142 		per_cpu(xen_pmu_irq, cpu).name = pmu_name;  in xen_smp_intr_init_pv()
148 	xen_smp_intr_free_pv(cpu);  in xen_smp_intr_init_pv()
228 	unsigned cpu;  in xen_pv_smp_prepare_cpus()  local
267 		for (cpu = nr_cpu_ids - 1; !cpu_possible(cpu); cpu--)  in xen_pv_smp_prepare_cpus()
269 		set_cpu_possible(cpu, false);  in xen_pv_smp_prepare_cpus()
272 	for_each_possible_cpu(cpu)  in xen_pv_smp_prepare_cpus()
273 		set_cpu_present(cpu, true);  in xen_pv_smp_prepare_cpus()
277 cpu_initialize_context(unsigned int cpu, struct task_struct *idle)  in cpu_initialize_context()  argument
284 	cpumask_set_cpu(cpu, cpu_callout_mask);  in cpu_initialize_context()
285 	if (cpumask_test_and_set_cpu(cpu, xen_cpu_initialized_map))  in cpu_initialize_context()
292 	gdt = get_cpu_gdt_rw(cpu);  in cpu_initialize_context()
331 	ctxt->gs_base_kernel = per_cpu_offset(cpu);  in cpu_initialize_context()
336 	per_cpu(xen_cr3, cpu) = __pa(swapper_pg_dir);  in cpu_initialize_context()
339 	if (HYPERVISOR_vcpu_op(VCPUOP_initialise, xen_vcpu_nr(cpu), ctxt))  in cpu_initialize_context()
346 static int xen_pv_cpu_up(unsigned int cpu, struct task_struct *idle)  in xen_pv_cpu_up()  argument
350 	rc = common_cpu_up(cpu, idle);  in xen_pv_cpu_up()
354 	xen_setup_runstate_info(cpu);  in xen_pv_cpu_up()
360 	rc = cpu_check_up_prepare(cpu);  in xen_pv_cpu_up()
365 	per_cpu(xen_vcpu, cpu)->evtchn_upcall_mask = 1;  in xen_pv_cpu_up()
367 	rc = cpu_initialize_context(cpu, idle);  in xen_pv_cpu_up()
371 	xen_pmu_init(cpu);  in xen_pv_cpu_up()
373 	rc = HYPERVISOR_vcpu_op(VCPUOP_up, xen_vcpu_nr(cpu), NULL);  in xen_pv_cpu_up()
376 	while (cpu_report_state(cpu) != CPU_ONLINE)  in xen_pv_cpu_up()
385 	unsigned int cpu = smp_processor_id();  in xen_pv_cpu_disable()  local
386 	if (cpu == 0)  in xen_pv_cpu_disable()
395 static void xen_pv_cpu_die(unsigned int cpu)  in xen_pv_cpu_die()  argument
398 				  xen_vcpu_nr(cpu), NULL)) {  in xen_pv_cpu_die()
403 	if (common_cpu_die(cpu) == 0) {  in xen_pv_cpu_die()
404 		xen_smp_intr_free(cpu);  in xen_pv_cpu_die()
405 		xen_uninit_lock_cpu(cpu);  in xen_pv_cpu_die()
406 		xen_teardown_timer(cpu);  in xen_pv_cpu_die()
407 		xen_pmu_finish(cpu);  in xen_pv_cpu_die()
434 static void xen_pv_cpu_die(unsigned int cpu)  in xen_pv_cpu_die()  argument
447 	int cpu = smp_processor_id();  in stop_self()  local
453 	set_cpu_online(cpu, false);  in stop_self()
455 	HYPERVISOR_vcpu_op(VCPUOP_down, xen_vcpu_nr(cpu), NULL);  in stop_self()