65     timer->index = index;  in stimer_init()
74     svcpu->vcpu = vcpu;  in synic_enable()
75     svcpu->msg_page = synic_alloc_page();  in synic_enable()
76     for (i = 0; i < ARRAY_SIZE(svcpu->timer); i++) {  in synic_enable()
77         stimer_init(&svcpu->timer[i], i);  in synic_enable()
79     wrmsr(HV_X64_MSR_SIMP, (u64)virt_to_phys(svcpu->msg_page) |  in synic_enable()
86     wrmsr(HV_X64_MSR_STIMER0_CONFIG + 2*timer->index, 0);  in stimer_shutdown()
91     atomic_inc(&timer->fire_count);  in process_stimer_expired()
98                         (struct hv_timer_message_payload *)msg->u.payload;  in process_stimer_msg()
101     if (msg->header.message_type != HVMSG_TIMER_EXPIRED &&  in process_stimer_msg()
102         msg->header.message_type != HVMSG_NONE) {  in process_stimer_msg()
103         report_fail("invalid Hyper-V SynIC msg type");  in process_stimer_msg()
108     if (msg->header.message_type == HVMSG_NONE) {  in process_stimer_msg()
112     if (msg->header.payload_size < sizeof(*payload)) {  in process_stimer_msg()
113         report_fail("invalid Hyper-V SynIC msg payload size");  in process_stimer_msg()
120     if (payload->timer_index >= ARRAY_SIZE(svcpu->timer)) {  in process_stimer_msg()
121         report_fail("invalid Hyper-V SynIC timer index");  in process_stimer_msg()
125     timer = &svcpu->timer[payload->timer_index];  in process_stimer_msg()
127     if (timer->direct) {  in process_stimer_msg()
135     msg->header.message_type = HVMSG_NONE;  in process_stimer_msg()
137     if (msg->header.message_flags.msg_pending) {  in process_stimer_msg()
150     msg_page = (struct hv_message_page *)svcpu->msg_page;  in __stimer_isr()
151     for (i = 0; i < ARRAY_SIZE(msg_page->sint_message); i++) {  in __stimer_isr()
152         msg = &msg_page->sint_message[i];  in __stimer_isr()
175     struct stimer *timer = &svcpu->timer[timer_index];  in __stimer_isr_direct()
205     atomic_set(&timer->fire_count, 0);  in stimer_start()
210     if (!timer->direct) {  in stimer_start()
211         config.sintx = timer->sint;  in stimer_start()
214         config.apic_vector = timer->apic_vec;  in stimer_start()
224         wrmsr(HV_X64_MSR_STIMER0_COUNT + timer->index*2, count);  in stimer_start()
225         wrmsr(HV_X64_MSR_STIMER0_CONFIG + timer->index*2, config.as_uint64);  in stimer_start()
227         wrmsr(HV_X64_MSR_STIMER0_CONFIG + timer->index*2, config.as_uint64);  in stimer_start()
228         wrmsr(HV_X64_MSR_STIMER0_COUNT + timer->index*2, count);  in stimer_start()
237     for (i = 0; i < ARRAY_SIZE(svcpu->timer); i++) {  in stimers_shutdown()
238         stimer_shutdown(&svcpu->timer[i]);  in stimers_shutdown()
250     synic_free_page(svcpu->msg_page);  in synic_disable()
266     timer1 = &svcpu->timer[0];  in stimer_test_prepare()
267     timer2 = &svcpu->timer[1];  in stimer_test_prepare()
269     timer1->sint = SINT1_NUM;  in stimer_test_prepare()
270     timer2->sint = SINT2_NUM;  in stimer_test_prepare()
281     timer1 = &svcpu->timer[0];  in stimer_test_prepare_direct()
282     timer2 = &svcpu->timer[1];  in stimer_test_prepare_direct()
287     timer1->apic_vec = APIC_VEC1;  in stimer_test_prepare_direct()
288     timer2->apic_vec = APIC_VEC2;  in stimer_test_prepare_direct()
290     timer1->direct = true;  in stimer_test_prepare_direct()
291     timer2->direct = true;  in stimer_test_prepare_direct()
301     while ((atomic_read(&timer1->fire_count) < 1000) ||  in stimer_test_periodic()
302            (atomic_read(&timer2->fire_count) < 1000)) {  in stimer_test_periodic()
305     report_pass("Hyper-V SynIC periodic timers test vcpu %d", vcpu);  in stimer_test_periodic()
312     /* Check one-shot timer */  in stimer_test_one_shot()
314     while (atomic_read(&timer->fire_count) < 1) {  in stimer_test_one_shot()
317     report_pass("Hyper-V SynIC one-shot test vcpu %d", vcpu);  in stimer_test_one_shot()
323     /* Check auto-enable one-shot timer */  in stimer_test_auto_enable_one_shot()
325     while (atomic_read(&timer->fire_count) < 1) {  in stimer_test_auto_enable_one_shot()
328     report_pass("Hyper-V SynIC auto-enable one-shot timer test vcpu %d", vcpu);  in stimer_test_auto_enable_one_shot()
334     /* Check auto-enable periodic timer */  in stimer_test_auto_enable_periodic()
336     while (atomic_read(&timer->fire_count) < 1000) {  in stimer_test_auto_enable_periodic()
339     report_pass("Hyper-V SynIC auto-enable periodic timer test vcpu %d", vcpu);  in stimer_test_auto_enable_periodic()
349     if (timer->direct)  in stimer_test_one_shot_busy()
353     msg = &msg_page->sint_message[timer->sint];  in stimer_test_one_shot_busy()
355     msg->header.message_type = HVMSG_TIMER_EXPIRED;  in stimer_test_one_shot_busy()
362     while (!msg->header.message_flags.msg_pending);  in stimer_test_one_shot_busy()
364     report(!atomic_read(&timer->fire_count),  in stimer_test_one_shot_busy()
367     msg->header.message_type = HVMSG_NONE;  in stimer_test_one_shot_busy()
371     while (atomic_read(&timer->fire_count) < 1) {  in stimer_test_one_shot_busy()
387     timer1 = &svcpu->timer[0];  in stimer_test()
388     timer2 = &svcpu->timer[1];  in stimer_test()
425         printf("Starting Hyper-V SynIC timers tests: message mode\n");  in stimer_test_all()
434         printf("Starting Hyper-V SynIC timers tests: direct mode\n");  in stimer_test_all()
450         report_skip("Hyper-V SynIC is not supported");  in main()
455         report_skip("Hyper-V SynIC timers are not supported");  in main()
460         report_skip("Hyper-V time reference counter is not supported");  in main()
465 	report_skip("Hyper-V SinIC timer direct mode is not supported");  in main()