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 --- virt/kvm/eventfd.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'virt') diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index 9718e98d6d2a..d7424c8c138a 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -35,6 +35,7 @@ #include "iodev.h" +#ifdef __KVM_HAVE_IOAPIC /* * -------------------------------------------------------------------- * irqfd: Allows an fd to be used to inject an interrupt to the guest @@ -425,17 +426,21 @@ fail: kfree(irqfd); return ret; } +#endif void kvm_eventfd_init(struct kvm *kvm) { +#ifdef __KVM_HAVE_IOAPIC spin_lock_init(&kvm->irqfds.lock); INIT_LIST_HEAD(&kvm->irqfds.items); INIT_LIST_HEAD(&kvm->irqfds.resampler_list); mutex_init(&kvm->irqfds.resampler_lock); +#endif INIT_LIST_HEAD(&kvm->ioeventfds); } +#ifdef __KVM_HAVE_IOAPIC /* * shutdown any irqfd's that match fd+gsi */ @@ -555,6 +560,7 @@ static void __exit irqfd_module_exit(void) module_init(irqfd_module_init); module_exit(irqfd_module_exit); +#endif /* * -------------------------------------------------------------------- -- cgit v1.2.3-58-ga151