From fd700a00dc2e821be92b0b56fd5d8ebf8c63f9ba Mon Sep 17 00:00:00 2001 From: =?utf8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= Date: Wed, 2 Mar 2016 22:56:40 +0100 Subject: [PATCH] KVM: i8254: add kvm_pit_reset_reinject MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Paolo Bonzini --- arch/x86/kvm/i8254.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c index 7d694ac..bdbb3f0 100644 --- a/arch/x86/kvm/i8254.c +++ b/arch/x86/kvm/i8254.c @@ -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 = { -- 2.7.4