37 static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args)  in do_hcall()  argument
57 		kill_guest(cpu, "already have lguest_data");  in do_hcall()
68 		__lgread(cpu, msg, args->arg1, sizeof(msg));  in do_hcall()
70 		kill_guest(cpu, "CRASH: %s", msg);  in do_hcall()
72 			cpu->lg->dead = ERR_PTR(-ERESTART);  in do_hcall()
78 			guest_pagetable_clear_all(cpu);  in do_hcall()
80 			guest_pagetable_flush_user(cpu);  in do_hcall()
88 		guest_new_pagetable(cpu, args->arg1);  in do_hcall()
91 		guest_set_stack(cpu, args->arg1, args->arg2, args->arg3);  in do_hcall()
95 		guest_set_pte(cpu, args->arg1, args->arg2,  in do_hcall()
98 		guest_set_pte(cpu, args->arg1, args->arg2, __pte(args->arg3));  in do_hcall()
102 		guest_set_pgd(cpu->lg, args->arg1, args->arg2);  in do_hcall()
106 		guest_set_pmd(cpu->lg, args->arg1, args->arg2);  in do_hcall()
110 		guest_set_clockevent(cpu, args->arg1);  in do_hcall()
114 		cpu->ts = args->arg1;  in do_hcall()
118 		cpu->halted = 1;  in do_hcall()
121 		cpu->pending_notify = args->arg1;  in do_hcall()
125 		if (lguest_arch_do_hcall(cpu, args))  in do_hcall()
126 			kill_guest(cpu, "Bad hypercall %li\n", args->arg0);  in do_hcall()
139 static void do_async_hcalls(struct lg_cpu *cpu)  in do_async_hcalls()  argument
145 	if (copy_from_user(&st, &cpu->lg->lguest_data->hcall_status, sizeof(st)))  in do_async_hcalls()
156 		unsigned int n = cpu->next_hcall;  in do_async_hcalls()
166 		if (++cpu->next_hcall == LHCALL_RING_SIZE)  in do_async_hcalls()
167 			cpu->next_hcall = 0;  in do_async_hcalls()
173 		if (copy_from_user(&args, &cpu->lg->lguest_data->hcalls[n],  in do_async_hcalls()
175 			kill_guest(cpu, "Fetching async hypercalls");  in do_async_hcalls()
180 		do_hcall(cpu, &args);  in do_async_hcalls()
183 		if (put_user(0xFF, &cpu->lg->lguest_data->hcall_status[n])) {  in do_async_hcalls()
184 			kill_guest(cpu, "Writing result for async hypercall");  in do_async_hcalls()
192 		if (cpu->pending_notify)  in do_async_hcalls()
201 static void initialize(struct lg_cpu *cpu)  in initialize()  argument
207 	if (cpu->hcall->arg0 != LHCALL_LGUEST_INIT) {  in initialize()
208 		kill_guest(cpu, "hypercall %li before INIT", cpu->hcall->arg0);  in initialize()
212 	if (lguest_arch_init_hypercalls(cpu))  in initialize()
213 		kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data);  in initialize()
219 	if (get_user(cpu->lg->noirq_start, &cpu->lg->lguest_data->noirq_start)  in initialize()
220 	    || get_user(cpu->lg->noirq_end, &cpu->lg->lguest_data->noirq_end))  in initialize()
221 		kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data);  in initialize()
227 	write_timestamp(cpu);  in initialize()
230 	page_table_guest_data_init(cpu);  in initialize()
238 	guest_pagetable_clear_all(cpu);  in initialize()
260 void do_hypercalls(struct lg_cpu *cpu)  in do_hypercalls()  argument
263 	if (unlikely(!cpu->lg->lguest_data)) {  in do_hypercalls()
265 		initialize(cpu);  in do_hypercalls()
267 		cpu->hcall = NULL;  in do_hypercalls()
276 	do_async_hcalls(cpu);  in do_hypercalls()
283 	if (!cpu->pending_notify) {  in do_hypercalls()
284 		do_hcall(cpu, cpu->hcall);  in do_hypercalls()
297 		cpu->hcall = NULL;  in do_hypercalls()
305 void write_timestamp(struct lg_cpu *cpu)  in write_timestamp()  argument
309 	if (copy_to_user(&cpu->lg->lguest_data->time,  in write_timestamp()
311 		kill_guest(cpu, "Writing timestamp");  in write_timestamp()