hw/nios2: Introduce Nios2MachineState

We want to move data from the heap into Nios2MachineState,
which is not possible with DEFINE_MACHINE.

Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220421151735.31996-61-richard.henderson@linaro.org>

1 files changed, 22 insertions, 2 deletions

diff --git a/hw/nios2/10m50_devboard.c b/hw/nios2/10m50_devboard.c
index 3d1205b8bd..bdc3ffd50d 100644
--- a/hw/nios2/10m50_devboard.c
+++ b/hw/nios2/10m50_devboard.c
@@ -36,6 +36,13 @@
 
 #include "boot.h"
 
+struct Nios2MachineState {
+    MachineState parent_obj;
+};
+
+#define TYPE_NIOS2_MACHINE  MACHINE_TYPE_NAME("10m50-ghrd")
+OBJECT_DECLARE_TYPE(Nios2MachineState, MachineClass, NIOS2_MACHINE)
+
 #define BINARY_DEVICE_TREE_FILE    "10m50-devboard.dtb"
 
 static void nios2_10m50_ghrd_init(MachineState *machine)
@@ -105,11 +112,24 @@ static void nios2_10m50_ghrd_init(MachineState *machine)
                       BINARY_DEVICE_TREE_FILE, NULL);
 }
 
-static void nios2_10m50_ghrd_machine_init(struct MachineClass *mc)
+static void nios2_10m50_ghrd_class_init(ObjectClass *oc, void *data)
 {
+    MachineClass *mc = MACHINE_CLASS(oc);
+
     mc->desc = "Altera 10M50 GHRD Nios II design";
     mc->init = nios2_10m50_ghrd_init;
     mc->is_default = true;
 }
 
-DEFINE_MACHINE("10m50-ghrd", nios2_10m50_ghrd_machine_init);
+static const TypeInfo nios2_10m50_ghrd_type_info = {
+    .name          = TYPE_NIOS2_MACHINE,
+    .parent        = TYPE_MACHINE,
+    .instance_size = sizeof(Nios2MachineState),
+    .class_init    = nios2_10m50_ghrd_class_init,
+};
+
+static void nios2_10m50_ghrd_type_init(void)
+{
+    type_register_static(&nios2_10m50_ghrd_type_info);
+}
+type_init(nios2_10m50_ghrd_type_init);