[Qemu-devel] [PATCH 4/4] spapr: Add sPAPRMachineClass

[David Gibson <david@gibson.dropbear.id.au>]

Currently although we have an sPAPRMachineState descended from MachineState
we don't have an sPAPRMAchineClass descended from MachineClass.  So far it
hasn't been needed, but several upcoming features are going to want it,
so this patch creates a stub implementation.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/spapr.c         |  1 +
 include/hw/ppc/spapr.h | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index c4c7a07..deebca9 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1804,6 +1804,7 @@ static const TypeInfo spapr_machine_info = {
     .abstract      = true,
     .instance_size = sizeof(sPAPRMachineState),
     .instance_init = spapr_machine_initfn,
+    .class_size    = sizeof(sPAPRMachineClass),
     .class_init    = spapr_machine_class_init,
     .interfaces = (InterfaceInfo[]) {
         { TYPE_FW_PATH_PROVIDER },
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 108ff45..f83167e 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -15,11 +15,26 @@ typedef struct sPAPREventLogEntry sPAPREventLogEntry;
 #define HPTE64_V_HPTE_DIRTY     0x0000000000000040ULL
 #define SPAPR_ENTRY_POINT	0x100
 
+typedef struct sPAPRMachineClass sPAPRMachineClass;
 typedef struct sPAPRMachineState sPAPRMachineState;
 
 #define TYPE_SPAPR_MACHINE      "spapr-machine"
 #define SPAPR_MACHINE(obj) \
     OBJECT_CHECK(sPAPRMachineState, (obj), TYPE_SPAPR_MACHINE)
+#define SPAPR_MACHINE_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(sPAPRMachineClass, obj, TYPE_SPAPR_MACHINE)
+#define SPAPR_MACHINE_CLASS(klass) \
+    OBJECT_CLASS_CHECK(sPAPRMachineClass, klass, TYPE_SPAPR_MACHINE)
+
+/**
+ * sPAPRMachineClass:
+ */
+struct sPAPRMachineClass {
+    /*< private >*/
+    MachineClass parent_class;
+
+    /*< public >*/
+};
 
 /**
  * sPAPRMachineState:
-- 
2.1.0