@@ -230,3 +230,66 @@ out:
g_free(bios);
return rc;
}
+
+static uint32_t isa_bridge_read_config(PCIDevice *d, uint32_t addr, int len)
+{
+ return pci_default_read_config(d, addr, len);
+}
+
+static void isa_bridge_write_config(PCIDevice *d, uint32_t addr, uint32_t v,
+ int len)
+{
+ pci_default_write_config(d, addr, v, len);
+
+ return;
+}
+
+static void isa_bridge_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->config_read = isa_bridge_read_config;
+ k->config_write = isa_bridge_write_config;
+
+ return;
+};
+
+typedef struct {
+ PCIDevice dev;
+} ISABridgeState;
+
+static TypeInfo isa_bridge_info = {
+ .name = "intel-pch-isa-bridge",
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(ISABridgeState),
+ .class_init = isa_bridge_class_init,
+};
+
+static void xen_pt_graphics_register_types(void)
+{
+ type_register_static(&isa_bridge_info);
+}
+
+type_init(xen_pt_graphics_register_types)
+
+static int create_pch_isa_bridge(PCIBus *bus, XenHostPCIDevice *hdev)
+{
+ struct PCIDevice *dev;
+
+ char rid;
+
+ dev = pci_create(bus, PCI_DEVFN(0x1f, 0), "intel-pch-isa-bridge");
+
+ qdev_init_nofail(&dev->qdev);
+
+ pci_config_set_vendor_id(dev->config, hdev->vendor_id);
+ pci_config_set_device_id(dev->config, hdev->device_id);
+
+ xen_host_pci_get_block(hdev, PCI_REVISION_ID, (uint8_t *)&rid, 1);
+
+ pci_config_set_revision(dev->config, rid);
+ pci_config_set_class(dev->config, PCI_CLASS_BRIDGE_ISA);
+
+ XEN_PT_LOG(dev, "Intel PCH ISA bridge created.\n");
+ return 0;
+}