[Qemu-devel] [PATCH] ioh3420: Add a map_irq function

[Alex Williamson]

Every bridge needs to know how to map IRQs from it's secondary bus to
the primary bus.  We seem to be direct mapped on ioh3420.  This avoids
segfaults when trying to put assigned devices behind root ports.

Signed-off-by: Alex Williamson <address@hidden>
---
 hw/ioh3420.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/hw/ioh3420.c b/hw/ioh3420.c
index 95bceb5..6ac4fe7 100644
--- a/hw/ioh3420.c
+++ b/hw/ioh3420.c
@@ -90,6 +90,11 @@ static void ioh3420_reset(DeviceState *qdev)
     pci_bridge_disable_base_limit(d);
 }
 
+static int ioh3420_map_irq(PCIDevice *pci_dev, int irq_num)
+{
+    return irq_num;
+}
+
 static int ioh3420_initfn(PCIDevice *d)
 {
     PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
@@ -97,6 +102,8 @@ static int ioh3420_initfn(PCIDevice *d)
     PCIESlot *s = DO_UPCAST(PCIESlot, port, p);
     int rc;
 
+    pci_bridge_map_irq(br, NULL, ioh3420_map_irq);
+
     rc = pci_bridge_initfn(d);
     if (rc < 0) {
         return rc;