c/r: prctl: extend PR_SET_MM to set up more mm_struct entries

[sfrench/cifs-2.6.git] / virt / kvm / irq_comm.c

diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index 9f614b4e365f77e38ce4b8dec4eeac15148cd5b7..a6a0365475edafc1935e46c04297931eadb8663c 100644 (file)
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -138,6 +138,20 @@ int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
        return kvm_irq_delivery_to_apic(kvm, NULL, &irq);
 }
 
+int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi)
+{
+       struct kvm_kernel_irq_routing_entry route;
+
+       if (!irqchip_in_kernel(kvm) || msi->flags != 0)
+               return -EINVAL;
+
+       route.msi.address_lo = msi->address_lo;
+       route.msi.address_hi = msi->address_hi;
+       route.msi.data = msi->data;
+
+       return kvm_set_msi(&route, kvm, KVM_USERSPACE_IRQ_SOURCE_ID, 1);
+}
+
 /*
  * Return value:
  *  < 0   Interrupt was ignored (masked or not delivered for other reasons)