59 	int cpu;  in cpu_bringup()  local
72 	cpu = smp_processor_id();  in cpu_bringup()
73 	smp_store_cpu_info(cpu);  in cpu_bringup()
74 	set_cpu_sibling_map(cpu);  in cpu_bringup()
80 	notify_cpu_starting(cpu);  in cpu_bringup()
82 	set_cpu_online(cpu, true);  in cpu_bringup()
96 void xen_smp_intr_free_pv(unsigned int cpu)  in xen_smp_intr_free_pv()  argument
98 	kfree(per_cpu(xen_irq_work, cpu).name);  in xen_smp_intr_free_pv()
99 	per_cpu(xen_irq_work, cpu).name = NULL;  in xen_smp_intr_free_pv()
100 	if (per_cpu(xen_irq_work, cpu).irq >= 0) {  in xen_smp_intr_free_pv()
101 		unbind_from_irqhandler(per_cpu(xen_irq_work, cpu).irq, NULL);  in xen_smp_intr_free_pv()
102 		per_cpu(xen_irq_work, cpu).irq = -1;  in xen_smp_intr_free_pv()
105 	kfree(per_cpu(xen_pmu_irq, cpu).name);  in xen_smp_intr_free_pv()
106 	per_cpu(xen_pmu_irq, cpu).name = NULL;  in xen_smp_intr_free_pv()
107 	if (per_cpu(xen_pmu_irq, cpu).irq >= 0) {  in xen_smp_intr_free_pv()
108 		unbind_from_irqhandler(per_cpu(xen_pmu_irq, cpu).irq, NULL);  in xen_smp_intr_free_pv()
109 		per_cpu(xen_pmu_irq, cpu).irq = -1;  in xen_smp_intr_free_pv()
113 int xen_smp_intr_init_pv(unsigned int cpu)  in xen_smp_intr_init_pv()  argument
118 	callfunc_name = kasprintf(GFP_KERNEL, "irqwork%d", cpu);  in xen_smp_intr_init_pv()
119 	per_cpu(xen_irq_work, cpu).name = callfunc_name;  in xen_smp_intr_init_pv()
121 				    cpu,  in xen_smp_intr_init_pv()
128 	per_cpu(xen_irq_work, cpu).irq = rc;  in xen_smp_intr_init_pv()
131 		pmu_name = kasprintf(GFP_KERNEL, "pmu%d", cpu);  in xen_smp_intr_init_pv()
132 		per_cpu(xen_pmu_irq, cpu).name = pmu_name;  in xen_smp_intr_init_pv()
133 		rc = bind_virq_to_irqhandler(VIRQ_XENPMU, cpu,  in xen_smp_intr_init_pv()
139 		per_cpu(xen_pmu_irq, cpu).irq = rc;  in xen_smp_intr_init_pv()
145 	xen_smp_intr_free_pv(cpu);  in xen_smp_intr_init_pv()
186 	unsigned cpu;  in xen_pv_smp_prepare_cpus()  local
215 		for (cpu = nr_cpu_ids - 1; !cpu_possible(cpu); cpu--)  in xen_pv_smp_prepare_cpus()
217 		set_cpu_possible(cpu, false);  in xen_pv_smp_prepare_cpus()
220 	for_each_possible_cpu(cpu)  in xen_pv_smp_prepare_cpus()
221 		set_cpu_present(cpu, true);  in xen_pv_smp_prepare_cpus()
225 cpu_initialize_context(unsigned int cpu, struct task_struct *idle)  in cpu_initialize_context()  argument
231 	if (cpumask_test_and_set_cpu(cpu, xen_cpu_initialized_map))  in cpu_initialize_context()
236 		cpumask_clear_cpu(cpu, xen_cpu_initialized_map);  in cpu_initialize_context()
240 	gdt = get_cpu_gdt_rw(cpu);  in cpu_initialize_context()
275 	ctxt->gs_base_kernel = per_cpu_offset(cpu);  in cpu_initialize_context()
280 	per_cpu(xen_cr3, cpu) = __pa(swapper_pg_dir);  in cpu_initialize_context()
283 	if (HYPERVISOR_vcpu_op(VCPUOP_initialise, xen_vcpu_nr(cpu), ctxt))  in cpu_initialize_context()
290 static int xen_pv_kick_ap(unsigned int cpu, struct task_struct *idle)  in xen_pv_kick_ap()  argument
294 	rc = common_cpu_up(cpu, idle);  in xen_pv_kick_ap()
298 	xen_setup_runstate_info(cpu);  in xen_pv_kick_ap()
301 	per_cpu(xen_vcpu, cpu)->evtchn_upcall_mask = 1;  in xen_pv_kick_ap()
303 	rc = cpu_initialize_context(cpu, idle);  in xen_pv_kick_ap()
307 	xen_pmu_init(cpu);  in xen_pv_kick_ap()
308 	mc_percpu_init(cpu);  in xen_pv_kick_ap()
314 	BUG_ON(HYPERVISOR_vcpu_op(VCPUOP_up, xen_vcpu_nr(cpu), NULL));  in xen_pv_kick_ap()
327 	unsigned int cpu = smp_processor_id();  in xen_pv_cpu_disable()  local
328 	if (cpu == 0)  in xen_pv_cpu_disable()
337 static void xen_pv_cpu_die(unsigned int cpu)  in xen_pv_cpu_die()  argument
339 	while (HYPERVISOR_vcpu_op(VCPUOP_is_up, xen_vcpu_nr(cpu), NULL)) {  in xen_pv_cpu_die()
345 static void xen_pv_cleanup_dead_cpu(unsigned int cpu)  in xen_pv_cleanup_dead_cpu()  argument
347 	xen_smp_intr_free(cpu);  in xen_pv_cleanup_dead_cpu()
348 	xen_uninit_lock_cpu(cpu);  in xen_pv_cleanup_dead_cpu()
349 	xen_teardown_timer(cpu);  in xen_pv_cleanup_dead_cpu()
350 	xen_pmu_finish(cpu);  in xen_pv_cleanup_dead_cpu()
367 static void xen_pv_cpu_die(unsigned int cpu)  in xen_pv_cpu_die()  argument
372 static void xen_pv_cleanup_dead_cpu(unsigned int cpu)  in xen_pv_cleanup_dead_cpu()  argument
385 	int cpu = smp_processor_id();  in stop_self()  local
391 	set_cpu_online(cpu, false);  in stop_self()
393 	HYPERVISOR_vcpu_op(VCPUOP_down, xen_vcpu_nr(cpu), NULL);  in stop_self()