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()
540 static void stimer_mark_pending(struct kvm_vcpu_hv_stimer *stimer, in stimer_mark_pending() argument
543 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_mark_pending()
545 set_bit(stimer->index, in stimer_mark_pending()
552 static void stimer_cleanup(struct kvm_vcpu_hv_stimer *stimer) in stimer_cleanup() argument
554 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_cleanup()
556 trace_kvm_hv_stimer_cleanup(stimer_to_vcpu(stimer)->vcpu_id, in stimer_cleanup()
557 stimer->index); in stimer_cleanup()
559 hrtimer_cancel(&stimer->timer); in stimer_cleanup()
560 clear_bit(stimer->index, in stimer_cleanup()
562 stimer->msg_pending = false; in stimer_cleanup()
563 stimer->exp_time = 0; in stimer_cleanup()
568 struct kvm_vcpu_hv_stimer *stimer; in stimer_timer_callback() local
570 stimer = container_of(timer, struct kvm_vcpu_hv_stimer, timer); in stimer_timer_callback()
571 trace_kvm_hv_stimer_callback(stimer_to_vcpu(stimer)->vcpu_id, in stimer_timer_callback()
572 stimer->index); in stimer_timer_callback()
573 stimer_mark_pending(stimer, true); in stimer_timer_callback()
583 static int stimer_start(struct kvm_vcpu_hv_stimer *stimer) in stimer_start() argument
588 time_now = get_time_ref_counter(stimer_to_vcpu(stimer)->kvm); in stimer_start()
591 if (stimer->config.periodic) { in stimer_start()
592 if (stimer->exp_time) { in stimer_start()
593 if (time_now >= stimer->exp_time) { in stimer_start()
596 div64_u64_rem(time_now - stimer->exp_time, in stimer_start()
597 stimer->count, &remainder); in stimer_start()
598 stimer->exp_time = in stimer_start()
599 time_now + (stimer->count - remainder); in stimer_start()
602 stimer->exp_time = time_now + stimer->count; in stimer_start()
605 stimer_to_vcpu(stimer)->vcpu_id, in stimer_start()
606 stimer->index, in stimer_start()
607 time_now, stimer->exp_time); in stimer_start()
609 hrtimer_start(&stimer->timer, in stimer_start()
611 100 * (stimer->exp_time - time_now)), in stimer_start()
615 stimer->exp_time = stimer->count; in stimer_start()
616 if (time_now >= stimer->count) { in stimer_start()
623 stimer_mark_pending(stimer, false); in stimer_start()
627 trace_kvm_hv_stimer_start_one_shot(stimer_to_vcpu(stimer)->vcpu_id, in stimer_start()
628 stimer->index, in stimer_start()
629 time_now, stimer->count); in stimer_start()
631 hrtimer_start(&stimer->timer, in stimer_start()
632 ktime_add_ns(ktime_now, 100 * (stimer->count - time_now)), in stimer_start()
637 static int stimer_set_config(struct kvm_vcpu_hv_stimer *stimer, u64 config, in stimer_set_config() argument
641 old_config = {.as_uint64 = stimer->config.as_uint64}; in stimer_set_config()
642 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_set_config()
648 trace_kvm_hv_stimer_set_config(stimer_to_vcpu(stimer)->vcpu_id, in stimer_set_config()
649 stimer->index, config, host); in stimer_set_config()
651 stimer_cleanup(stimer); in stimer_set_config()
655 stimer->config.as_uint64 = new_config.as_uint64; in stimer_set_config()
657 if (stimer->config.enable) in stimer_set_config()
658 stimer_mark_pending(stimer, false); in stimer_set_config()
663 static int stimer_set_count(struct kvm_vcpu_hv_stimer *stimer, u64 count, in stimer_set_count() argument
666 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_set_count()
672 trace_kvm_hv_stimer_set_count(stimer_to_vcpu(stimer)->vcpu_id, in stimer_set_count()
673 stimer->index, count, host); in stimer_set_count()
675 stimer_cleanup(stimer); in stimer_set_count()
676 stimer->count = count; in stimer_set_count()
678 if (stimer->count == 0) in stimer_set_count()
679 stimer->config.enable = 0; in stimer_set_count()
680 else if (stimer->config.auto_enable) in stimer_set_count()
681 stimer->config.enable = 1; in stimer_set_count()
684 if (stimer->config.enable) in stimer_set_count()
685 stimer_mark_pending(stimer, false); in stimer_set_count()
690 static int stimer_get_config(struct kvm_vcpu_hv_stimer *stimer, u64 *pconfig) in stimer_get_config() argument
692 *pconfig = stimer->config.as_uint64; in stimer_get_config()
696 static int stimer_get_count(struct kvm_vcpu_hv_stimer *stimer, u64 *pcount) in stimer_get_count() argument
698 *pcount = stimer->count; in stimer_get_count()
759 static int stimer_send_msg(struct kvm_vcpu_hv_stimer *stimer) in stimer_send_msg() argument
761 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_send_msg()
762 struct hv_message *msg = &stimer->msg; in stimer_send_msg()
770 bool no_retry = stimer->config.periodic; in stimer_send_msg()
772 payload->expiration_time = stimer->exp_time; in stimer_send_msg()
775 stimer->config.sintx, msg, in stimer_send_msg()
779 static int stimer_notify_direct(struct kvm_vcpu_hv_stimer *stimer) in stimer_notify_direct() argument
781 struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer); in stimer_notify_direct()
784 .vector = stimer->config.apic_vector in stimer_notify_direct()
792 static void stimer_expiration(struct kvm_vcpu_hv_stimer *stimer) in stimer_expiration() argument
794 int r, direct = stimer->config.direct_mode; in stimer_expiration()
796 stimer->msg_pending = true; in stimer_expiration()
798 r = stimer_send_msg(stimer); in stimer_expiration()
800 r = stimer_notify_direct(stimer); in stimer_expiration()
801 trace_kvm_hv_stimer_expiration(stimer_to_vcpu(stimer)->vcpu_id, in stimer_expiration()
802 stimer->index, direct, r); in stimer_expiration()
804 stimer->msg_pending = false; in stimer_expiration()
805 if (!(stimer->config.periodic)) in stimer_expiration()
806 stimer->config.enable = 0; in stimer_expiration()
813 struct kvm_vcpu_hv_stimer *stimer; in kvm_hv_process_stimers() local
817 for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++) in kvm_hv_process_stimers()
819 stimer = &hv_vcpu->stimer[i]; in kvm_hv_process_stimers()
820 if (stimer->config.enable) { in kvm_hv_process_stimers()
821 exp_time = stimer->exp_time; in kvm_hv_process_stimers()
827 stimer_expiration(stimer); in kvm_hv_process_stimers()
830 if ((stimer->config.enable) && in kvm_hv_process_stimers()
831 stimer->count) { in kvm_hv_process_stimers()
832 if (!stimer->msg_pending) in kvm_hv_process_stimers()
833 stimer_start(stimer); in kvm_hv_process_stimers()
835 stimer_cleanup(stimer); in kvm_hv_process_stimers()
845 for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++) in kvm_hv_vcpu_uninit()
846 stimer_cleanup(&hv_vcpu->stimer[i]); in kvm_hv_vcpu_uninit()
867 static void stimer_prepare_msg(struct kvm_vcpu_hv_stimer *stimer) in stimer_prepare_msg() argument
869 struct hv_message *msg = &stimer->msg; in stimer_prepare_msg()
877 payload->timer_index = stimer->index; in stimer_prepare_msg()
882 static void stimer_init(struct kvm_vcpu_hv_stimer *stimer, int timer_index) in stimer_init() argument
884 memset(stimer, 0, sizeof(*stimer)); in stimer_init()
885 stimer->index = timer_index; in stimer_init()
886 hrtimer_init(&stimer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); in stimer_init()
887 stimer->timer.function = stimer_timer_callback; in stimer_init()
888 stimer_prepare_msg(stimer); in stimer_init()
899 for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++) in kvm_hv_vcpu_init()
900 stimer_init(&hv_vcpu->stimer[i], i); in kvm_hv_vcpu_init()