diff --git a/hw/usb/hcd-uhci.c b/hw/usb/hcd-uhci.c
index b6b972f..64442a4 100644
--- a/hw/usb/hcd-uhci.c
+++ b/hw/usb/hcd-uhci.c
@@ -88,6 +88,13 @@ enum {
 typedef struct UHCIState UHCIState;
 typedef struct UHCIAsync UHCIAsync;
 typedef struct UHCIQueue UHCIQueue;
+typedef struct UHCIInfo UHCIInfo;
+
+struct UHCIInfo {
+    uint16_t vendor_id;
+    uint16_t device_id;
+    uint8_t  revision;
+};
 
 /* 
  * Pending async transaction.
@@ -1293,17 +1300,18 @@ static Property uhci_properties[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
 
-static void piix3_uhci_class_init(ObjectClass *klass, void *data)
+static void uhci_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+    UHCIInfo *info = data;
 
     k->init = usb_uhci_common_initfn;
     k->exit = usb_uhci_exit;
-    k->vendor_id = PCI_VENDOR_ID_INTEL;
-    k->device_id = PCI_DEVICE_ID_INTEL_82371SB_2;
-    k->revision = 0x01;
-    k->class_id = PCI_CLASS_SERIAL_USB;
+    k->vendor_id = info->vendor_id;
+    k->device_id = info->device_id;
+    k->revision  = info->revision;
+    k->class_id  = PCI_CLASS_SERIAL_USB;
     dc->vmsd = &vmstate_uhci;
     dc->props = uhci_properties;
 }
@@ -1312,29 +1320,24 @@ static TypeInfo piix3_uhci_info = {
     .name          = "piix3-usb-uhci",
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(UHCIState),
-    .class_init    = piix3_uhci_class_init,
+    .class_init    = uhci_class_init,
+    .class_data    = (UHCIInfo[]) { {
+            .vendor_id = PCI_VENDOR_ID_INTEL,
+            .device_id = PCI_DEVICE_ID_INTEL_82371SB_2,
+            .revision  = 0x01,
+     } },
 };
 
-static void piix4_uhci_class_init(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
-
-    k->init = usb_uhci_common_initfn;
-    k->exit = usb_uhci_exit;
-    k->vendor_id = PCI_VENDOR_ID_INTEL;
-    k->device_id = PCI_DEVICE_ID_INTEL_82371AB_2;
-    k->revision = 0x01;
-    k->class_id = PCI_CLASS_SERIAL_USB;
-    dc->vmsd = &vmstate_uhci;
-    dc->props = uhci_properties;
-}
-
 static TypeInfo piix4_uhci_info = {
     .name          = "piix4-usb-uhci",
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(UHCIState),
-    .class_init    = piix4_uhci_class_init,
+    .class_init    = uhci_class_init,
+    .class_data    = (UHCIInfo[]) { {
+            .vendor_id = PCI_VENDOR_ID_INTEL,
+            .device_id = PCI_DEVICE_ID_INTEL_82371AB_2,
+            .revision  = 0x01,
+     } },
 };
 
 static void vt82c686b_uhci_class_init(ObjectClass *klass, void *data)