spapr_pci: Introduce a finish_realize() callback

The spapr-pci PHB initializes IOMMU for emulated devices only.
The upcoming VFIO support will do it different. However both emulated
and VFIO PHB types share most of the initialization code.
For the type specific things a new finish_realize() callback is
introduced.

This introduces sPAPRPHBClass derived from PCIHostBridgeClass and
adds the callback pointer.

This implements finish_realize() for emulated devices.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[agraf: Fix compilation]
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 16 insertions, 2 deletions

diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h
index 970b4a9..0f428a1 100644
--- a/include/hw/pci-host/spapr.h
+++ b/include/hw/pci-host/spapr.h
@@ -34,7 +34,21 @@
 #define SPAPR_PCI_HOST_BRIDGE(obj) \
     OBJECT_CHECK(sPAPRPHBState, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE)
 
-typedef struct sPAPRPHBState {
+#define SPAPR_PCI_HOST_BRIDGE_CLASS(klass) \
+     OBJECT_CLASS_CHECK(sPAPRPHBClass, (klass), TYPE_SPAPR_PCI_HOST_BRIDGE)
+#define SPAPR_PCI_HOST_BRIDGE_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(sPAPRPHBClass, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE)
+
+typedef struct sPAPRPHBClass sPAPRPHBClass;
+typedef struct sPAPRPHBState sPAPRPHBState;
+
+struct sPAPRPHBClass {
+    PCIHostBridgeClass parent_class;
+
+    void (*finish_realize)(sPAPRPHBState *sphb, Error **errp);
+};
+
+struct sPAPRPHBState {
     PCIHostState parent_obj;
 
     int32_t index;
@@ -62,7 +76,7 @@ typedef struct sPAPRPHBState {
     } msi_table[SPAPR_MSIX_MAX_DEVS];
 
     QLIST_ENTRY(sPAPRPHBState) list;
-} sPAPRPHBState;
+};
 
 #define SPAPR_PCI_BASE_BUID          0x800000020000000ULL