Lines Matching refs:stimer
41 static void stimer_mark_pending(struct kvm_vcpu_hv_stimer *stimer,
169 struct kvm_vcpu_hv_stimer *stimer; in kvm_hv_notify_acked_sint() local
175 for (idx = 0; idx < ARRAY_SIZE(hv_vcpu->stimer); idx++) { in kvm_hv_notify_acked_sint()
176 stimer = &hv_vcpu->stimer[idx]; in kvm_hv_notify_acked_sint()
177 if (stimer->msg_pending && stimer->config.enable && in kvm_hv_notify_acked_sint()
178 !stimer->config.direct_mode && in kvm_hv_notify_acked_sint()
179 stimer->config.sintx == sint) in kvm_hv_notify_acked_sint()
180 stimer_mark_pending(stimer, false); in kvm_hv_notify_acked_sint()
534 static void stimer_mark_pending(struct kvm_vcpu_hv_stimer *stimer, in stimer_mark_pending() argument
537 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_mark_pending()
539 set_bit(stimer->index, in stimer_mark_pending()
546 static void stimer_cleanup(struct kvm_vcpu_hv_stimer *stimer) in stimer_cleanup() argument
548 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_cleanup()
550 trace_kvm_hv_stimer_cleanup(stimer_to_vcpu(stimer)->vcpu_id, in stimer_cleanup()
551 stimer->index); in stimer_cleanup()
553 hrtimer_cancel(&stimer->timer); in stimer_cleanup()
554 clear_bit(stimer->index, in stimer_cleanup()
556 stimer->msg_pending = false; in stimer_cleanup()
557 stimer->exp_time = 0; in stimer_cleanup()
562 struct kvm_vcpu_hv_stimer *stimer; in stimer_timer_callback() local
564 stimer = container_of(timer, struct kvm_vcpu_hv_stimer, timer); in stimer_timer_callback()
565 trace_kvm_hv_stimer_callback(stimer_to_vcpu(stimer)->vcpu_id, in stimer_timer_callback()
566 stimer->index); in stimer_timer_callback()
567 stimer_mark_pending(stimer, true); in stimer_timer_callback()
577 static int stimer_start(struct kvm_vcpu_hv_stimer *stimer) in stimer_start() argument
582 time_now = get_time_ref_counter(stimer_to_vcpu(stimer)->kvm); in stimer_start()
585 if (stimer->config.periodic) { in stimer_start()
586 if (stimer->exp_time) { in stimer_start()
587 if (time_now >= stimer->exp_time) { in stimer_start()
590 div64_u64_rem(time_now - stimer->exp_time, in stimer_start()
591 stimer->count, &remainder); in stimer_start()
592 stimer->exp_time = in stimer_start()
593 time_now + (stimer->count - remainder); in stimer_start()
596 stimer->exp_time = time_now + stimer->count; in stimer_start()
599 stimer_to_vcpu(stimer)->vcpu_id, in stimer_start()
600 stimer->index, in stimer_start()
601 time_now, stimer->exp_time); in stimer_start()
603 hrtimer_start(&stimer->timer, in stimer_start()
605 100 * (stimer->exp_time - time_now)), in stimer_start()
609 stimer->exp_time = stimer->count; in stimer_start()
610 if (time_now >= stimer->count) { in stimer_start()
617 stimer_mark_pending(stimer, false); in stimer_start()
621 trace_kvm_hv_stimer_start_one_shot(stimer_to_vcpu(stimer)->vcpu_id, in stimer_start()
622 stimer->index, in stimer_start()
623 time_now, stimer->count); in stimer_start()
625 hrtimer_start(&stimer->timer, in stimer_start()
626 ktime_add_ns(ktime_now, 100 * (stimer->count - time_now)), in stimer_start()
631 static int stimer_set_config(struct kvm_vcpu_hv_stimer *stimer, u64 config, in stimer_set_config() argument
635 old_config = {.as_uint64 = stimer->config.as_uint64}; in stimer_set_config()
636 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_set_config()
642 trace_kvm_hv_stimer_set_config(stimer_to_vcpu(stimer)->vcpu_id, in stimer_set_config()
643 stimer->index, config, host); in stimer_set_config()
645 stimer_cleanup(stimer); in stimer_set_config()
649 stimer->config.as_uint64 = new_config.as_uint64; in stimer_set_config()
651 if (stimer->config.enable) in stimer_set_config()
652 stimer_mark_pending(stimer, false); in stimer_set_config()
657 static int stimer_set_count(struct kvm_vcpu_hv_stimer *stimer, u64 count, in stimer_set_count() argument
660 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_set_count()
666 trace_kvm_hv_stimer_set_count(stimer_to_vcpu(stimer)->vcpu_id, in stimer_set_count()
667 stimer->index, count, host); in stimer_set_count()
669 stimer_cleanup(stimer); in stimer_set_count()
670 stimer->count = count; in stimer_set_count()
671 if (stimer->count == 0) in stimer_set_count()
672 stimer->config.enable = 0; in stimer_set_count()
673 else if (stimer->config.auto_enable) in stimer_set_count()
674 stimer->config.enable = 1; in stimer_set_count()
676 if (stimer->config.enable) in stimer_set_count()
677 stimer_mark_pending(stimer, false); in stimer_set_count()
682 static int stimer_get_config(struct kvm_vcpu_hv_stimer *stimer, u64 *pconfig) in stimer_get_config() argument
684 *pconfig = stimer->config.as_uint64; in stimer_get_config()
688 static int stimer_get_count(struct kvm_vcpu_hv_stimer *stimer, u64 *pcount) in stimer_get_count() argument
690 *pcount = stimer->count; in stimer_get_count()
751 static int stimer_send_msg(struct kvm_vcpu_hv_stimer *stimer) in stimer_send_msg() argument
753 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_send_msg()
754 struct hv_message *msg = &stimer->msg; in stimer_send_msg()
762 bool no_retry = stimer->config.periodic; in stimer_send_msg()
764 payload->expiration_time = stimer->exp_time; in stimer_send_msg()
767 stimer->config.sintx, msg, in stimer_send_msg()
771 static int stimer_notify_direct(struct kvm_vcpu_hv_stimer *stimer) in stimer_notify_direct() argument
773 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_notify_direct()
776 .vector = stimer->config.apic_vector in stimer_notify_direct()
784 static void stimer_expiration(struct kvm_vcpu_hv_stimer *stimer) in stimer_expiration() argument
786 int r, direct = stimer->config.direct_mode; in stimer_expiration()
788 stimer->msg_pending = true; in stimer_expiration()
790 r = stimer_send_msg(stimer); in stimer_expiration()
792 r = stimer_notify_direct(stimer); in stimer_expiration()
793 trace_kvm_hv_stimer_expiration(stimer_to_vcpu(stimer)->vcpu_id, in stimer_expiration()
794 stimer->index, direct, r); in stimer_expiration()
796 stimer->msg_pending = false; in stimer_expiration()
797 if (!(stimer->config.periodic)) in stimer_expiration()
798 stimer->config.enable = 0; in stimer_expiration()
805 struct kvm_vcpu_hv_stimer *stimer; in kvm_hv_process_stimers() local
809 for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++) in kvm_hv_process_stimers()
811 stimer = &hv_vcpu->stimer[i]; in kvm_hv_process_stimers()
812 if (stimer->config.enable) { in kvm_hv_process_stimers()
813 exp_time = stimer->exp_time; in kvm_hv_process_stimers()
819 stimer_expiration(stimer); in kvm_hv_process_stimers()
822 if ((stimer->config.enable) && in kvm_hv_process_stimers()
823 stimer->count) { in kvm_hv_process_stimers()
824 if (!stimer->msg_pending) in kvm_hv_process_stimers()
825 stimer_start(stimer); in kvm_hv_process_stimers()
827 stimer_cleanup(stimer); in kvm_hv_process_stimers()
837 for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++) in kvm_hv_vcpu_uninit()
838 stimer_cleanup(&hv_vcpu->stimer[i]); in kvm_hv_vcpu_uninit()
859 static void stimer_prepare_msg(struct kvm_vcpu_hv_stimer *stimer) in stimer_prepare_msg() argument
861 struct hv_message *msg = &stimer->msg; in stimer_prepare_msg()
869 payload->timer_index = stimer->index; in stimer_prepare_msg()
874 static void stimer_init(struct kvm_vcpu_hv_stimer *stimer, int timer_index) in stimer_init() argument
876 memset(stimer, 0, sizeof(*stimer)); in stimer_init()
877 stimer->index = timer_index; in stimer_init()
878 hrtimer_init(&stimer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); in stimer_init()
879 stimer->timer.function = stimer_timer_callback; in stimer_init()
880 stimer_prepare_msg(stimer); in stimer_init()
891 for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++) in kvm_hv_vcpu_init()
892 stimer_init(&hv_vcpu->stimer[i], i); in kvm_hv_vcpu_init()