---

yaml
---
r: 132124
b: refs/heads/master
c: 6db6a5f
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cbd88c8e6f5cdb8d4b9af01df825305200240382
+refs/heads/master: 6db6a5f3ae2ca6b874b0fd97ae16fdc9b5cdd6cc

trunk/arch/x86/lguest/boot.c

@@ -594,19 +594,21 @@ static void __init lguest_init_IRQ(void)
 		/* Some systems map "vectors" to interrupts weirdly.  Lguest has
 		 * a straightforward 1 to 1 mapping, so force that here. */
 		__get_cpu_var(vector_irq)[vector] = i;
-		if (vector != SYSCALL_VECTOR) {
-			set_intr_gate(vector,
-				      interrupt[vector-FIRST_EXTERNAL_VECTOR]);
-			set_irq_chip_and_handler_name(i, &lguest_irq_controller,
-						      handle_level_irq,
-						      "level");
-		}
+		if (vector != SYSCALL_VECTOR)
+			set_intr_gate(vector, interrupt[i]);
 	}
 	/* This call is required to set up for 4k stacks, where we have
 	 * separate stacks for hard and soft interrupts. */
 	irq_ctx_init(smp_processor_id());
 }
 
+void lguest_setup_irq(unsigned int irq)
+{
+	irq_to_desc_alloc_cpu(irq, 0);
+	set_irq_chip_and_handler_name(irq, &lguest_irq_controller,
+				      handle_level_irq, "level");
+}
+
 /*
  * Time.
  *

trunk/drivers/lguest/lguest_device.c

@@ -212,6 +212,9 @@ static void lg_notify(struct virtqueue *vq)
 	hcall(LHCALL_NOTIFY, lvq->config.pfn << PAGE_SHIFT, 0, 0);
 }
 
+/* An extern declaration inside a C file is bad form.  Don't do it. */
+extern void lguest_setup_irq(unsigned int irq);
+
 /* This routine finds the first virtqueue described in the configuration of
  * this device and sets it up.
  *
@@ -266,6 +269,9 @@ static struct virtqueue *lg_find_vq(struct virtio_device *vdev,
 		goto unmap;
 	}
 
+	/* Make sure the interrupt is allocated. */
+	lguest_setup_irq(lvq->config.irq);
+
 	/* Tell the interrupt for this virtqueue to go to the virtio_ring
 	 * interrupt handler. */
 	/* FIXME: We used to have a flag for the Host to tell us we could use