58 	int cpu;  in cpu_bringup()  local
69 	cpu = smp_processor_id();  in cpu_bringup()
70 	smp_store_cpu_info(cpu);  in cpu_bringup()
71 	cpu_data(cpu).x86_max_cores = 1;  in cpu_bringup()
72 	set_cpu_sibling_map(cpu);  in cpu_bringup()
78 	notify_cpu_starting(cpu);  in cpu_bringup()
80 	set_cpu_online(cpu, true);  in cpu_bringup()
82 	cpu_set_state_online(cpu);  /* Implies full memory barrier. */  in cpu_bringup()
94 void xen_smp_intr_free_pv(unsigned int cpu)  in xen_smp_intr_free_pv()  argument
96 	if (per_cpu(xen_irq_work, cpu).irq >= 0) {  in xen_smp_intr_free_pv()
97 		unbind_from_irqhandler(per_cpu(xen_irq_work, cpu).irq, NULL);  in xen_smp_intr_free_pv()
98 		per_cpu(xen_irq_work, cpu).irq = -1;  in xen_smp_intr_free_pv()
99 		kfree(per_cpu(xen_irq_work, cpu).name);  in xen_smp_intr_free_pv()
100 		per_cpu(xen_irq_work, cpu).name = NULL;  in xen_smp_intr_free_pv()
103 	if (per_cpu(xen_pmu_irq, cpu).irq >= 0) {  in xen_smp_intr_free_pv()
104 		unbind_from_irqhandler(per_cpu(xen_pmu_irq, cpu).irq, NULL);  in xen_smp_intr_free_pv()
105 		per_cpu(xen_pmu_irq, cpu).irq = -1;  in xen_smp_intr_free_pv()
106 		kfree(per_cpu(xen_pmu_irq, cpu).name);  in xen_smp_intr_free_pv()
107 		per_cpu(xen_pmu_irq, cpu).name = NULL;  in xen_smp_intr_free_pv()
111 int xen_smp_intr_init_pv(unsigned int cpu)  in xen_smp_intr_init_pv()  argument
116 	callfunc_name = kasprintf(GFP_KERNEL, "irqwork%d", cpu);  in xen_smp_intr_init_pv()
118 				    cpu,  in xen_smp_intr_init_pv()
125 	per_cpu(xen_irq_work, cpu).irq = rc;  in xen_smp_intr_init_pv()
126 	per_cpu(xen_irq_work, cpu).name = callfunc_name;  in xen_smp_intr_init_pv()
128 	if (is_xen_pmu(cpu)) {  in xen_smp_intr_init_pv()
129 		pmu_name = kasprintf(GFP_KERNEL, "pmu%d", cpu);  in xen_smp_intr_init_pv()
130 		rc = bind_virq_to_irqhandler(VIRQ_XENPMU, cpu,  in xen_smp_intr_init_pv()
136 		per_cpu(xen_pmu_irq, cpu).irq = rc;  in xen_smp_intr_init_pv()
137 		per_cpu(xen_pmu_irq, cpu).name = pmu_name;  in xen_smp_intr_init_pv()
143 	xen_smp_intr_free_pv(cpu);  in xen_smp_intr_init_pv()
232 	unsigned cpu;  in xen_pv_smp_prepare_cpus()  local
270 		for (cpu = nr_cpu_ids - 1; !cpu_possible(cpu); cpu--)  in xen_pv_smp_prepare_cpus()
272 		set_cpu_possible(cpu, false);  in xen_pv_smp_prepare_cpus()
275 	for_each_possible_cpu(cpu)  in xen_pv_smp_prepare_cpus()
276 		set_cpu_present(cpu, true);  in xen_pv_smp_prepare_cpus()
280 cpu_initialize_context(unsigned int cpu, struct task_struct *idle)  in cpu_initialize_context()  argument
287 	cpumask_set_cpu(cpu, cpu_callout_mask);  in cpu_initialize_context()
288 	if (cpumask_test_and_set_cpu(cpu, xen_cpu_initialized_map))  in cpu_initialize_context()
295 	gdt = get_cpu_gdt_rw(cpu);  in cpu_initialize_context()
342 	ctxt->gs_base_kernel = per_cpu_offset(cpu);  in cpu_initialize_context()
348 	per_cpu(xen_cr3, cpu) = __pa(swapper_pg_dir);  in cpu_initialize_context()
351 	if (HYPERVISOR_vcpu_op(VCPUOP_initialise, xen_vcpu_nr(cpu), ctxt))  in cpu_initialize_context()
358 static int xen_pv_cpu_up(unsigned int cpu, struct task_struct *idle)  in xen_pv_cpu_up()  argument
362 	common_cpu_up(cpu, idle);  in xen_pv_cpu_up()
364 	xen_setup_runstate_info(cpu);  in xen_pv_cpu_up()
370 	rc = cpu_check_up_prepare(cpu);  in xen_pv_cpu_up()
375 	per_cpu(xen_vcpu, cpu)->evtchn_upcall_mask = 1;  in xen_pv_cpu_up()
377 	rc = cpu_initialize_context(cpu, idle);  in xen_pv_cpu_up()
381 	xen_pmu_init(cpu);  in xen_pv_cpu_up()
383 	rc = HYPERVISOR_vcpu_op(VCPUOP_up, xen_vcpu_nr(cpu), NULL);  in xen_pv_cpu_up()
386 	while (cpu_report_state(cpu) != CPU_ONLINE)  in xen_pv_cpu_up()
395 	unsigned int cpu = smp_processor_id();  in xen_pv_cpu_disable()  local
396 	if (cpu == 0)  in xen_pv_cpu_disable()
405 static void xen_pv_cpu_die(unsigned int cpu)  in xen_pv_cpu_die()  argument
408 				  xen_vcpu_nr(cpu), NULL)) {  in xen_pv_cpu_die()
413 	if (common_cpu_die(cpu) == 0) {  in xen_pv_cpu_die()
414 		xen_smp_intr_free(cpu);  in xen_pv_cpu_die()
415 		xen_uninit_lock_cpu(cpu);  in xen_pv_cpu_die()
416 		xen_teardown_timer(cpu);  in xen_pv_cpu_die()
417 		xen_pmu_finish(cpu);  in xen_pv_cpu_die()
444 static void xen_pv_cpu_die(unsigned int cpu)  in xen_pv_cpu_die()  argument
457 	int cpu = smp_processor_id();  in stop_self()  local
463 	set_cpu_online(cpu, false);  in stop_self()
465 	HYPERVISOR_vcpu_op(VCPUOP_down, xen_vcpu_nr(cpu), NULL);  in stop_self()