diff options
Diffstat (limited to 'virt/kvm/eventfd.c')
| -rw-r--r-- | virt/kvm/eventfd.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index 46dbc0a7dfc1..e469b6012471 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -408,15 +408,17 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args) */ fdput(f); #ifdef CONFIG_HAVE_KVM_IRQ_BYPASS - irqfd->consumer.token = (void *)irqfd->eventfd; - irqfd->consumer.add_producer = kvm_arch_irq_bypass_add_producer; - irqfd->consumer.del_producer = kvm_arch_irq_bypass_del_producer; - irqfd->consumer.stop = kvm_arch_irq_bypass_stop; - irqfd->consumer.start = kvm_arch_irq_bypass_start; - ret = irq_bypass_register_consumer(&irqfd->consumer); - if (ret) - pr_info("irq bypass consumer (token %p) registration fails: %d\n", + if (kvm_arch_has_irq_bypass()) { + irqfd->consumer.token = (void *)irqfd->eventfd; + irqfd->consumer.add_producer = kvm_arch_irq_bypass_add_producer; + irqfd->consumer.del_producer = kvm_arch_irq_bypass_del_producer; + irqfd->consumer.stop = kvm_arch_irq_bypass_stop; + irqfd->consumer.start = kvm_arch_irq_bypass_start; + ret = irq_bypass_register_consumer(&irqfd->consumer); + if (ret) + pr_info("irq bypass consumer (token %p) registration fails: %d\n", irqfd->consumer.token, ret); + } #endif return 0; |