Lines Matching refs:stimer
39 static void stimer_mark_pending(struct kvm_vcpu_hv_stimer *stimer,
167 struct kvm_vcpu_hv_stimer *stimer; in kvm_hv_notify_acked_sint() local
173 for (idx = 0; idx < ARRAY_SIZE(hv_vcpu->stimer); idx++) { in kvm_hv_notify_acked_sint()
174 stimer = &hv_vcpu->stimer[idx]; in kvm_hv_notify_acked_sint()
175 if (stimer->msg_pending && stimer->config.enable && in kvm_hv_notify_acked_sint()
176 !stimer->config.direct_mode && in kvm_hv_notify_acked_sint()
177 stimer->config.sintx == sint) in kvm_hv_notify_acked_sint()
178 stimer_mark_pending(stimer, false); in kvm_hv_notify_acked_sint()
415 static void stimer_mark_pending(struct kvm_vcpu_hv_stimer *stimer, in stimer_mark_pending() argument
418 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_mark_pending()
420 set_bit(stimer->index, in stimer_mark_pending()
427 static void stimer_cleanup(struct kvm_vcpu_hv_stimer *stimer) in stimer_cleanup() argument
429 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_cleanup()
431 trace_kvm_hv_stimer_cleanup(stimer_to_vcpu(stimer)->vcpu_id, in stimer_cleanup()
432 stimer->index); in stimer_cleanup()
434 hrtimer_cancel(&stimer->timer); in stimer_cleanup()
435 clear_bit(stimer->index, in stimer_cleanup()
437 stimer->msg_pending = false; in stimer_cleanup()
438 stimer->exp_time = 0; in stimer_cleanup()
443 struct kvm_vcpu_hv_stimer *stimer; in stimer_timer_callback() local
445 stimer = container_of(timer, struct kvm_vcpu_hv_stimer, timer); in stimer_timer_callback()
446 trace_kvm_hv_stimer_callback(stimer_to_vcpu(stimer)->vcpu_id, in stimer_timer_callback()
447 stimer->index); in stimer_timer_callback()
448 stimer_mark_pending(stimer, true); in stimer_timer_callback()
458 static int stimer_start(struct kvm_vcpu_hv_stimer *stimer) in stimer_start() argument
463 time_now = get_time_ref_counter(stimer_to_vcpu(stimer)->kvm); in stimer_start()
466 if (stimer->config.periodic) { in stimer_start()
467 if (stimer->exp_time) { in stimer_start()
468 if (time_now >= stimer->exp_time) { in stimer_start()
471 div64_u64_rem(time_now - stimer->exp_time, in stimer_start()
472 stimer->count, &remainder); in stimer_start()
473 stimer->exp_time = in stimer_start()
474 time_now + (stimer->count - remainder); in stimer_start()
477 stimer->exp_time = time_now + stimer->count; in stimer_start()
480 stimer_to_vcpu(stimer)->vcpu_id, in stimer_start()
481 stimer->index, in stimer_start()
482 time_now, stimer->exp_time); in stimer_start()
484 hrtimer_start(&stimer->timer, in stimer_start()
486 100 * (stimer->exp_time - time_now)), in stimer_start()
490 stimer->exp_time = stimer->count; in stimer_start()
491 if (time_now >= stimer->count) { in stimer_start()
498 stimer_mark_pending(stimer, false); in stimer_start()
502 trace_kvm_hv_stimer_start_one_shot(stimer_to_vcpu(stimer)->vcpu_id, in stimer_start()
503 stimer->index, in stimer_start()
504 time_now, stimer->count); in stimer_start()
506 hrtimer_start(&stimer->timer, in stimer_start()
507 ktime_add_ns(ktime_now, 100 * (stimer->count - time_now)), in stimer_start()
512 static int stimer_set_config(struct kvm_vcpu_hv_stimer *stimer, u64 config, in stimer_set_config() argument
516 old_config = {.as_uint64 = stimer->config.as_uint64}; in stimer_set_config()
518 trace_kvm_hv_stimer_set_config(stimer_to_vcpu(stimer)->vcpu_id, in stimer_set_config()
519 stimer->index, config, host); in stimer_set_config()
521 stimer_cleanup(stimer); in stimer_set_config()
525 stimer->config.as_uint64 = new_config.as_uint64; in stimer_set_config()
527 if (stimer->config.enable) in stimer_set_config()
528 stimer_mark_pending(stimer, false); in stimer_set_config()
533 static int stimer_set_count(struct kvm_vcpu_hv_stimer *stimer, u64 count, in stimer_set_count() argument
536 trace_kvm_hv_stimer_set_count(stimer_to_vcpu(stimer)->vcpu_id, in stimer_set_count()
537 stimer->index, count, host); in stimer_set_count()
539 stimer_cleanup(stimer); in stimer_set_count()
540 stimer->count = count; in stimer_set_count()
541 if (stimer->count == 0) in stimer_set_count()
542 stimer->config.enable = 0; in stimer_set_count()
543 else if (stimer->config.auto_enable) in stimer_set_count()
544 stimer->config.enable = 1; in stimer_set_count()
546 if (stimer->config.enable) in stimer_set_count()
547 stimer_mark_pending(stimer, false); in stimer_set_count()
552 static int stimer_get_config(struct kvm_vcpu_hv_stimer *stimer, u64 *pconfig) in stimer_get_config() argument
554 *pconfig = stimer->config.as_uint64; in stimer_get_config()
558 static int stimer_get_count(struct kvm_vcpu_hv_stimer *stimer, u64 *pcount) in stimer_get_count() argument
560 *pcount = stimer->count; in stimer_get_count()
621 static int stimer_send_msg(struct kvm_vcpu_hv_stimer *stimer) in stimer_send_msg() argument
623 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_send_msg()
624 struct hv_message *msg = &stimer->msg; in stimer_send_msg()
632 bool no_retry = stimer->config.periodic; in stimer_send_msg()
634 payload->expiration_time = stimer->exp_time; in stimer_send_msg()
637 stimer->config.sintx, msg, in stimer_send_msg()
641 static int stimer_notify_direct(struct kvm_vcpu_hv_stimer *stimer) in stimer_notify_direct() argument
643 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_notify_direct()
646 .vector = stimer->config.apic_vector in stimer_notify_direct()
654 static void stimer_expiration(struct kvm_vcpu_hv_stimer *stimer) in stimer_expiration() argument
656 int r, direct = stimer->config.direct_mode; in stimer_expiration()
658 stimer->msg_pending = true; in stimer_expiration()
660 r = stimer_send_msg(stimer); in stimer_expiration()
662 r = stimer_notify_direct(stimer); in stimer_expiration()
663 trace_kvm_hv_stimer_expiration(stimer_to_vcpu(stimer)->vcpu_id, in stimer_expiration()
664 stimer->index, direct, r); in stimer_expiration()
666 stimer->msg_pending = false; in stimer_expiration()
667 if (!(stimer->config.periodic)) in stimer_expiration()
668 stimer->config.enable = 0; in stimer_expiration()
675 struct kvm_vcpu_hv_stimer *stimer; in kvm_hv_process_stimers() local
679 for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++) in kvm_hv_process_stimers()
681 stimer = &hv_vcpu->stimer[i]; in kvm_hv_process_stimers()
682 if (stimer->config.enable) { in kvm_hv_process_stimers()
683 exp_time = stimer->exp_time; in kvm_hv_process_stimers()
689 stimer_expiration(stimer); in kvm_hv_process_stimers()
692 if ((stimer->config.enable) && in kvm_hv_process_stimers()
693 stimer->count) { in kvm_hv_process_stimers()
694 if (!stimer->msg_pending) in kvm_hv_process_stimers()
695 stimer_start(stimer); in kvm_hv_process_stimers()
697 stimer_cleanup(stimer); in kvm_hv_process_stimers()
707 for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++) in kvm_hv_vcpu_uninit()
708 stimer_cleanup(&hv_vcpu->stimer[i]); in kvm_hv_vcpu_uninit()
729 static void stimer_prepare_msg(struct kvm_vcpu_hv_stimer *stimer) in stimer_prepare_msg() argument
731 struct hv_message *msg = &stimer->msg; in stimer_prepare_msg()
739 payload->timer_index = stimer->index; in stimer_prepare_msg()
744 static void stimer_init(struct kvm_vcpu_hv_stimer *stimer, int timer_index) in stimer_init() argument
746 memset(stimer, 0, sizeof(*stimer)); in stimer_init()
747 stimer->index = timer_index; in stimer_init()
748 hrtimer_init(&stimer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); in stimer_init()
749 stimer->timer.function = stimer_timer_callback; in stimer_init()
750 stimer_prepare_msg(stimer); in stimer_init()
761 for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++) in kvm_hv_vcpu_init()
762 stimer_init(&hv_vcpu->stimer[i], i); in kvm_hv_vcpu_init()