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KVM: i8254: add kvm_pit_reset_reinject

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pit_state.pending and pit_state.irq_ack are always reset at the same
time.  Create a function for them.

Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Radim Krčmář 2016-03-02 22:56:40 +01:00 committed by Paolo Bonzini
parent f6e0a0c113
commit fd700a00dc
1 changed files with 10 additions and 8 deletions
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18
arch/x86/kvm/i8254.c
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@ -321,6 +321,12 @@ static enum hrtimer_restart pit_timer_fn(struct hrtimer *data)
return HRTIMER_NORESTART;
}
static inline void kvm_pit_reset_reinject(struct kvm_pit *pit)
{
atomic_set(&pit->pit_state.pending, 0);
pit->pit_state.irq_ack = 1;
}
static void create_pit_timer(struct kvm *kvm, u32 val, int is_period)
{
struct kvm_kpit_state *ps = &kvm->arch.vpit->pit_state;
@ -343,8 +349,7 @@ static void create_pit_timer(struct kvm *kvm, u32 val, int is_period)
ps->timer.function = pit_timer_fn;
ps->kvm = ps->pit->kvm;
atomic_set(&ps->pending, 0);
ps->irq_ack = 1;
kvm_pit_reset_reinject(ps->pit);
/*
* Do not allow the guest to program periodic timers with small
@ -644,18 +649,15 @@ void kvm_pit_reset(struct kvm_pit *pit)
}
mutex_unlock(&pit->pit_state.lock);
atomic_set(&pit->pit_state.pending, 0);
pit->pit_state.irq_ack = 1;
kvm_pit_reset_reinject(pit);
}
static void pit_mask_notifer(struct kvm_irq_mask_notifier *kimn, bool mask)
{
struct kvm_pit *pit = container_of(kimn, struct kvm_pit, mask_notifier);
if (!mask) {
atomic_set(&pit->pit_state.pending, 0);
pit->pit_state.irq_ack = 1;
}
if (!mask)
kvm_pit_reset_reinject(pit);
}
static const struct kvm_io_device_ops pit_dev_ops = {