diff --git a/hw/pci-host/pnv_phb3.c b/hw/pci-host/pnv_phb3.c
index a52aedcad3..7fb35dc031 100644
--- a/hw/pci-host/pnv_phb3.c
+++ b/hw/pci-host/pnv_phb3.c
@@ -993,6 +993,9 @@ static void pnv_phb3_realize(DeviceState *dev, Error **errp)
 
     /* User created devices */
     if (!phb->chip) {
+        Error *local_err = NULL;
+        BusState *s;
+
         phb->chip = pnv_get_chip(pnv, phb->chip_id);
         if (!phb->chip) {
             error_setg(errp, "invalid chip id: %d", phb->chip_id);
@@ -1004,6 +1007,12 @@ static void pnv_phb3_realize(DeviceState *dev, Error **errp)
          * correctly the device tree.
          */
         pnv_chip_parent_fixup(phb->chip, OBJECT(phb), phb->phb_id);
+
+        s = qdev_get_parent_bus(DEVICE(phb->chip));
+        if (!qdev_set_parent_bus(DEVICE(phb), s, &local_err)) {
+            error_propagate(errp, local_err);
+            return;
+        }
     }
 
     if (phb->phb_id >= PNV_CHIP_GET_CLASS(phb->chip)->num_phbs) {
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index fa5e7bc751..8dc6382357 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1941,6 +1941,8 @@ static void pnv_machine_power8_class_init(ObjectClass *oc, void *data)
 
     pmc->compat = compat;
     pmc->compat_size = sizeof(compat);
+
+    machine_class_allow_dynamic_sysbus_dev(mc, TYPE_PNV_PHB3);
 }
 
 static void pnv_machine_power9_class_init(ObjectClass *oc, void *data)