From 914daba865cb5c38cd5fdee024ca38029315b38f Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Tue, 9 Oct 2012 00:22:59 +0200 Subject: KVM: Distangle eventfd code from irqchip The current eventfd code assumes that when we have eventfd, we also have irqfd for in-kernel interrupt delivery. This is not necessarily true. On PPC we don't have an in-kernel irqchip yet, but we can still support easily support eventfd. Signed-off-by: Alexander Graf --- include/linux/kvm_host.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 8e5c7b651655..c823e47c3641 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -900,10 +900,20 @@ static inline void kvm_free_irq_routing(struct kvm *kvm) {} #ifdef CONFIG_HAVE_KVM_EVENTFD void kvm_eventfd_init(struct kvm *kvm); +int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); + +#ifdef CONFIG_HAVE_KVM_IRQCHIP int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args); void kvm_irqfd_release(struct kvm *kvm); void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); -int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); +#else +static inline int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) +{ + return -EINVAL; +} + +static inline void kvm_irqfd_release(struct kvm *kvm) {} +#endif #else -- cgit v1.2.3