[Qemu-devel] [RFC v2 19/20] pci: validate interfaces on base_class_init

[Eduardo Habkost]

Make sure we don't forget to add the legacy-PCI or PCIe interface
names on any PCI device class.

Signed-off-by: Eduardo Habkost <address@hidden>
---
Changes series v1 -> v2:
* (new patch added to series)
---
 hw/pci/pci.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 19dc63a..2eac71a 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -2521,6 +2521,17 @@ static void pci_device_class_init(ObjectClass *klass, 
void *data)
     pc->realize = pci_default_realize;
 }
 
+static void pci_device_class_base_init(ObjectClass *klass, void *data)
+{
+    if (!object_class_is_abstract(klass)) {
+        ObjectClass *legacy =
+            object_class_dynamic_cast(klass, INTERFACE_LEGACY_PCI_DEVICE);
+        ObjectClass *pcie =
+            object_class_dynamic_cast(klass, INTERFACE_PCIE_DEVICE);
+        assert(legacy || pcie);
+    }
+}
+
 AddressSpace *pci_device_iommu_address_space(PCIDevice *dev)
 {
     PCIBus *bus = PCI_BUS(dev->bus);
@@ -2645,6 +2656,7 @@ static const TypeInfo pci_device_type_info = {
     .abstract = true,
     .class_size = sizeof(PCIDeviceClass),
     .class_init = pci_device_class_init,
+    .class_base_init = pci_device_class_base_init,
 };
 
 static void pci_register_types(void)
-- 
2.7.4