19 static int getreg_setup(struct lg_cpu *cpu, const unsigned long __user *input)  in getreg_setup()  argument
33 	cpu->reg_read = lguest_arch_regptr(cpu, which, true);  in getreg_setup()
34 	if (!cpu->reg_read)  in getreg_setup()
41 static int setreg(struct lg_cpu *cpu, const unsigned long __user *input)  in setreg()  argument
53 	reg = lguest_arch_regptr(cpu, which, false);  in setreg()
67 static int user_send_irq(struct lg_cpu *cpu, const unsigned long __user *input)  in user_send_irq()  argument
80 	set_interrupt(cpu, irq);  in user_send_irq()
88 static int trap(struct lg_cpu *cpu, const unsigned long __user *input)  in trap()  argument
95 	if (!deliver_trap(cpu, trapnum))  in trap()
108 	struct lg_cpu *cpu;  in read()  local
119 	cpu = &lg->cpus[cpu_id];  in read()
122 	if (current != cpu->tsk)  in read()
144 	if (cpu->pending.trap)  in read()
145 		cpu->pending.trap = 0;  in read()
148 	return run_guest(cpu, (unsigned long __user *)user);  in read()
155 static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip)  in lg_cpu_start()  argument
158 	if (id >= ARRAY_SIZE(cpu->lg->cpus))  in lg_cpu_start()
162 	cpu->id = id;  in lg_cpu_start()
163 	cpu->lg = container_of(cpu, struct lguest, cpus[id]);  in lg_cpu_start()
164 	cpu->lg->nr_cpus++;  in lg_cpu_start()
167 	init_clockdev(cpu);  in lg_cpu_start()
173 	cpu->regs_page = get_zeroed_page(GFP_KERNEL);  in lg_cpu_start()
174 	if (!cpu->regs_page)  in lg_cpu_start()
178 	cpu->regs = (void *)cpu->regs_page + PAGE_SIZE - sizeof(*cpu->regs);  in lg_cpu_start()
184 	lguest_arch_setup_regs(cpu, start_ip);  in lg_cpu_start()
190 	cpu->tsk = current;  in lg_cpu_start()
197 	cpu->mm = get_task_mm(cpu->tsk);  in lg_cpu_start()
203 	cpu->last_pages = NULL;  in lg_cpu_start()
307 	struct lg_cpu *uninitialized_var(cpu);  in write()
319 		cpu = &lg->cpus[cpu_id];  in write()
330 		return user_send_irq(cpu, input);  in write()
332 		return getreg_setup(cpu, input);  in write()
334 		return setreg(cpu, input);  in write()
336 		return trap(cpu, input);  in write()