[Qemu-devel] [PATCH 1/5] pci: INTERFACE_LEGACY_PCI_DEVICE and INTERFACE_PCIE_DEVICE interfaces

[Eduardo Habkost]

Those two interfaces will be used to indicate which device types
support legacy PCI or PCI-express buses.  Management software
will be able to use the qom-list-types QMP command to query that
information.

Signed-off-by: Eduardo Habkost <address@hidden>
---
 include/hw/pci/pci.h |  6 ++++++
 hw/pci/pci.c         | 12 ++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index e598b09..f5e8ab9 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -195,6 +195,12 @@ enum {
 #define PCI_DEVICE_GET_CLASS(obj) \
      OBJECT_GET_CLASS(PCIDeviceClass, (obj), TYPE_PCI_DEVICE)
 
+/* Interface implemented by devices that can be plugged on PCIe buses */
+#define INTERFACE_PCIE_DEVICE "pci-express-device"
+
+/* Interface implemented by devices that can be plugged on legacy PCI buses */
+#define INTERFACE_LEGACY_PCI_DEVICE "legacy-pci-device"
+
 typedef struct PCIINTxRoute {
     enum {
         PCI_INTX_ENABLED,
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 258fbe5..baa3429 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -168,6 +168,16 @@ static const TypeInfo pci_bus_info = {
     .class_init = pci_bus_class_init,
 };
 
+static const TypeInfo pcie_interface_info = {
+    .name          = INTERFACE_PCIE_DEVICE,
+    .parent        = TYPE_INTERFACE,
+};
+
+static const TypeInfo legacy_pci_interface_info = {
+    .name          = INTERFACE_LEGACY_PCI_DEVICE,
+    .parent        = TYPE_INTERFACE,
+};
+
 static const TypeInfo pcie_bus_info = {
     .name = TYPE_PCIE_BUS,
     .parent = TYPE_PCI_BUS,
@@ -2645,6 +2655,8 @@ static void pci_register_types(void)
 {
     type_register_static(&pci_bus_info);
     type_register_static(&pcie_bus_info);
+    type_register_static(&legacy_pci_interface_info);
+    type_register_static(&pcie_interface_info);
     type_register_static(&pci_device_type_info);
 }
 
-- 
2.9.4