x86/kvm/i8254.c

86 	struct kvm_kpit_state *ps = &pit->pit_state;
88 	if (!ps->period)
100 	remaining = hrtimer_get_remaining(&ps->timer);
101 	elapsed = ps->period - ktime_to_ns(remaining);
198 static inline struct kvm_pit *pit_state_to_pit(struct kvm_kpit_state *ps)
200 	return container_of(ps, struct kvm_pit, pit_state);
205 	struct kvm_kpit_state *ps = container_of(kian, struct kvm_kpit_state,
207 	struct kvm_pit *pit = pit_state_to_pit(ps);
209 	atomic_set(&ps->irq_ack, 1);
214 	if (atomic_dec_if_positive(&ps->pending) > 0)
246 	struct kvm_kpit_state *ps = &pit->pit_state;
248 	if (atomic_read(&ps->reinject) && !atomic_xchg(&ps->irq_ack, 0))
270 	struct kvm_kpit_state *ps = container_of(data, struct kvm_kpit_state, timer);
271 	struct kvm_pit *pt = pit_state_to_pit(ps);
273 	if (atomic_read(&ps->reinject))
274 		atomic_inc(&ps->pending);
278 	if (ps->is_periodic) {
279 		hrtimer_add_expires_ns(&ps->timer, ps->period);
293 	struct kvm_kpit_state *ps = &pit->pit_state;
296 	if (atomic_read(&ps->reinject) == reinject)
302 	 * since it checks ps->irq_ack before kvm_set_irq()
309 		/* The initial state is preserved while ps->reinject == 0. */
311 		kvm_register_irq_ack_notifier(kvm, &ps->irq_ack_notifier);
315 		kvm_unregister_irq_ack_notifier(kvm, &ps->irq_ack_notifier);
319 	atomic_set(&ps->reinject, reinject);
324 	struct kvm_kpit_state *ps = &pit->pit_state;
329 	    ps->flags & KVM_PIT_FLAGS_HPET_LEGACY)
337 	hrtimer_cancel(&ps->timer);
339 	ps->period = interval;
340 	ps->is_periodic = is_period;
349 	if (ps->is_periodic) {
352 		if (ps->period < min_period) {
356 			    ps->period, min_period);
357 			ps->period = min_period;
361 	hrtimer_start(&ps->timer, ktime_add_ns(ktime_get(), interval),
367 	struct kvm_kpit_state *ps = &pit->pit_state;
378 	ps->channels[channel].count = val;
381 		ps->channels[channel].count_load_time = ktime_get();
387 	switch (ps->channels[0].mode) {