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-rw-r--r--hw/ppc/ppc4xx_pci.c5
-rw-r--r--hw/ppc/spapr_vio.c2
2 files changed, 5 insertions, 2 deletions
diff --git a/hw/ppc/ppc4xx_pci.c b/hw/ppc/ppc4xx_pci.c
index d2d6f65e6c..4cb78518a3 100644
--- a/hw/ppc/ppc4xx_pci.c
+++ b/hw/ppc/ppc4xx_pci.c
@@ -380,6 +380,11 @@ static void ppc4xx_host_bridge_class_init(ObjectClass *klass, void *data)
     k->vendor_id    = PCI_VENDOR_ID_IBM;
     k->device_id    = PCI_DEVICE_ID_IBM_440GX;
     k->class_id     = PCI_CLASS_BRIDGE_OTHER;
+    /*
+     * PCI-facing part of the host bridge, not usable without the
+     * host-facing part, which can't be device_add'ed, yet.
+     */
+    dc->cannot_instantiate_with_device_add_yet = true;
 }
 
 static const TypeInfo ppc4xx_host_bridge_info = {
diff --git a/hw/ppc/spapr_vio.c b/hw/ppc/spapr_vio.c
index fee6195f95..4e33f462d9 100644
--- a/hw/ppc/spapr_vio.c
+++ b/hw/ppc/spapr_vio.c
@@ -528,11 +528,9 @@ static int spapr_vio_bridge_init(SysBusDevice *dev)
 
 static void spapr_vio_bridge_class_init(ObjectClass *klass, void *data)
 {
-    DeviceClass *dc = DEVICE_CLASS(klass);
     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
     k->init = spapr_vio_bridge_init;
-    dc->no_user = 1;
 }
 
 static const TypeInfo spapr_vio_bridge_info = {