1 files changed, 11 insertions, 10 deletions

diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c
index 9e799dc10f..e62de4218f 100644
--- a/hw/pci-bridge/pci_expander_bridge.c
+++ b/hw/pci-bridge/pci_expander_bridge.c
@@ -51,7 +51,8 @@ typedef struct PXBDev {
 
 static PXBDev *convert_to_pxb(PCIDevice *dev)
 {
-    return pci_bus_is_express(dev->bus) ? PXB_PCIE_DEV(dev) : PXB_DEV(dev);
+    return pci_bus_is_express(pci_get_bus(dev))
+        ? PXB_PCIE_DEV(dev) : PXB_DEV(dev);
 }
 
 static GList *pxb_dev_list;
@@ -165,7 +166,7 @@ static const TypeInfo pxb_host_info = {
  */
 static void pxb_register_bus(PCIDevice *dev, PCIBus *pxb_bus, Error **errp)
 {
-    PCIBus *bus = dev->bus;
+    PCIBus *bus = pci_get_bus(dev);
     int pxb_bus_num = pci_bus_num(pxb_bus);
 
     if (bus->parent_dev) {
@@ -179,12 +180,12 @@ static void pxb_register_bus(PCIDevice *dev, PCIBus *pxb_bus, Error **errp)
             return;
         }
     }
-    QLIST_INSERT_HEAD(&dev->bus->child, pxb_bus, sibling);
+    QLIST_INSERT_HEAD(&pci_get_bus(dev)->child, pxb_bus, sibling);
 }
 
 static int pxb_map_irq_fn(PCIDevice *pci_dev, int pin)
 {
-    PCIDevice *pxb = pci_dev->bus->parent_dev;
+    PCIDevice *pxb = pci_get_bus(pci_dev)->parent_dev;
 
     /*
      * The bios does not index the pxb slot number when
@@ -229,9 +230,9 @@ static void pxb_dev_realize_common(PCIDevice *dev, bool pcie, Error **errp)
 
     ds = qdev_create(NULL, TYPE_PXB_HOST);
     if (pcie) {
-        bus = pci_bus_new(ds, dev_name, NULL, NULL, 0, TYPE_PXB_PCIE_BUS);
+        bus = pci_root_bus_new(ds, dev_name, NULL, NULL, 0, TYPE_PXB_PCIE_BUS);
     } else {
-        bus = pci_bus_new(ds, "pxb-internal", NULL, NULL, 0, TYPE_PXB_BUS);
+        bus = pci_root_bus_new(ds, "pxb-internal", NULL, NULL, 0, TYPE_PXB_BUS);
         bds = qdev_create(BUS(bus), "pci-bridge");
         bds->id = dev_name;
         qdev_prop_set_uint8(bds, PCI_BRIDGE_DEV_PROP_CHASSIS_NR, pxb->bus_nr);
@@ -239,8 +240,8 @@ static void pxb_dev_realize_common(PCIDevice *dev, bool pcie, Error **errp)
     }
 
     bus->parent_dev = dev;
-    bus->address_space_mem = dev->bus->address_space_mem;
-    bus->address_space_io = dev->bus->address_space_io;
+    bus->address_space_mem = pci_get_bus(dev)->address_space_mem;
+    bus->address_space_io = pci_get_bus(dev)->address_space_io;
     bus->map_irq = pxb_map_irq_fn;
 
     PCI_HOST_BRIDGE(ds)->bus = bus;
@@ -271,7 +272,7 @@ err_register_bus:
 
 static void pxb_dev_realize(PCIDevice *dev, Error **errp)
 {
-    if (pci_bus_is_express(dev->bus)) {
+    if (pci_bus_is_express(pci_get_bus(dev))) {
         error_setg(errp, "pxb devices cannot reside on a PCIe bus");
         return;
     }
@@ -323,7 +324,7 @@ static const TypeInfo pxb_dev_info = {
 
 static void pxb_pcie_dev_realize(PCIDevice *dev, Error **errp)
 {
-    if (!pci_bus_is_express(dev->bus)) {
+    if (!pci_bus_is_express(pci_get_bus(dev))) {
         error_setg(errp, "pxb-pcie devices cannot reside on a PCI bus");
         return;
     }