mac_nvram: QOM'ify MacIO NVRAM

It was not qdev'ified before. Turn it into a SysBusDevice and
initialize it via static properties.

Prepare Old World specific MacIO state and embed the NVRAM state there.

Drop macio_nvram_setup_bar() in favor of sysbus_mmio_map() or
direct use of Memory API.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 41 insertions, 22 deletions

diff --git a/hw/mac_nvram.c b/hw/mac_nvram.c
index 0a22e66052..25121fa482 100644
--- a/hw/mac_nvram.c
+++ b/hw/mac_nvram.c
@@ -37,13 +37,6 @@
 #define NVR_DPRINTF(fmt, ...)
 #endif
 
-struct MacIONVRAMState {
-    uint32_t size;
-    MemoryRegion mem;
-    unsigned int it_shift;
-    uint8_t *data;
-};
-
 #define DEF_SYSTEM_SIZE 0xc10
 
 /* Direct access to NVRAM */
@@ -111,32 +104,56 @@ static const VMStateDescription vmstate_macio_nvram = {
 };
 
 
-static void macio_nvram_reset(void *opaque)
+static void macio_nvram_reset(DeviceState *dev)
 {
 }
 
-MacIONVRAMState *macio_nvram_init (hwaddr size,
-                                   unsigned int it_shift)
+static void macio_nvram_realizefn(DeviceState *dev, Error **errp)
 {
-    MacIONVRAMState *s;
+    SysBusDevice *d = SYS_BUS_DEVICE(dev);
+    MacIONVRAMState *s = MACIO_NVRAM(dev);
 
-    s = g_malloc0(sizeof(MacIONVRAMState));
-    s->data = g_malloc0(size);
-    s->size = size;
-    s->it_shift = it_shift;
+    s->data = g_malloc0(s->size);
 
     memory_region_init_io(&s->mem, &macio_nvram_ops, s, "macio-nvram",
-                          size << it_shift);
-    vmstate_register(NULL, -1, &vmstate_macio_nvram, s);
-    qemu_register_reset(macio_nvram_reset, s);
+                          s->size << s->it_shift);
+    sysbus_init_mmio(d, &s->mem);
+}
+
+static void macio_nvram_unrealizefn(DeviceState *dev, Error **errp)
+{
+    MacIONVRAMState *s = MACIO_NVRAM(dev);
+
+    g_free(s->data);
+}
 
-    return s;
+static Property macio_nvram_properties[] = {
+    DEFINE_PROP_UINT32("size", MacIONVRAMState, size, 0),
+    DEFINE_PROP_UINT32("it_shift", MacIONVRAMState, it_shift, 0),
+    DEFINE_PROP_END_OF_LIST()
+};
+
+static void macio_nvram_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    dc->realize = macio_nvram_realizefn;
+    dc->unrealize = macio_nvram_unrealizefn;
+    dc->reset = macio_nvram_reset;
+    dc->vmsd = &vmstate_macio_nvram;
+    dc->props = macio_nvram_properties;
 }
 
-void macio_nvram_setup_bar(MacIONVRAMState *s, MemoryRegion *bar,
-                           hwaddr mem_base)
+static const TypeInfo macio_nvram_type_info = {
+    .name = TYPE_MACIO_NVRAM,
+    .parent = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(MacIONVRAMState),
+    .class_init = macio_nvram_class_init,
+};
+
+static void macio_nvram_register_types(void)
 {
-    memory_region_add_subregion(bar, mem_base, &s->mem);
+    type_register_static(&macio_nvram_type_info);
 }
 
 /* Set up a system OpenBIOS NVRAM partition */
@@ -175,3 +192,5 @@ void pmac_format_nvram_partition (MacIONVRAMState *nvr, int len)
     end = len;
     OpenBIOS_finish_partition(part_header, end - start);
 }
+
+type_init(macio_nvram_register_types)