From 92b4e489822d2126440f7645b116ebd5f63c0ef7 Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Thu, 17 May 2012 10:32:33 -0300 Subject: kvm: Introduce kvm_irqchip_add_msi_route Add a service that establishes a static route from a virtual IRQ line to an MSI message. Will be used for IRQFD and device assignment. As we will use this service outside of CONFIG_KVM protected code, stub it properly. Signed-off-by: Jan Kiszka Signed-off-by: Avi Kivity --- kvm-all.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'kvm-all.c') diff --git a/kvm-all.c b/kvm-all.c index 0117837..7f906ca 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -1080,6 +1080,32 @@ int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg) return kvm_irqchip_set_irq(s, route->kroute.gsi, 1); } +int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg) +{ + struct kvm_irq_routing_entry kroute; + int virq; + + if (!kvm_irqchip_in_kernel()) { + return -ENOSYS; + } + + virq = kvm_irqchip_get_virq(s); + if (virq < 0) { + return virq; + } + + kroute.gsi = virq; + kroute.type = KVM_IRQ_ROUTING_MSI; + kroute.flags = 0; + kroute.u.msi.address_lo = (uint32_t)msg.address; + kroute.u.msi.address_hi = msg.address >> 32; + kroute.u.msi.data = msg.data; + + kvm_add_routing_entry(s, &kroute); + + return virq; +} + #else /* !KVM_CAP_IRQ_ROUTING */ static void kvm_init_irq_routing(KVMState *s) @@ -1090,6 +1116,11 @@ int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg) { abort(); } + +int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg) +{ + abort(); +} #endif /* !KVM_CAP_IRQ_ROUTING */ static int kvm_irqchip_create(KVMState *s) -- cgit v1.1