microblaze: replace cpu_mb_init() with cpu_generic_init()

cpu_mb_init() always falls back to TYPE_MICROBLAZE_CPU object
regardless of cpu_model. Put fallback logic into
mb_cpu_class_by_name() which would translate any cpu_model
into TYPE_MICROBLAZE_CPU class and replace cpu_mb_init()
with cpu_generic_init().

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1503592308-93913-13-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

target/microblaze/cpu.c

@@ -253,6 +253,11 @@ static Property mb_properties[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
 
+static ObjectClass *mb_cpu_class_by_name(const char *cpu_model)
+{
+    return object_class_by_name(TYPE_MICROBLAZE_CPU);
+}
+
 static void mb_cpu_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
@@ -265,6 +270,7 @@ static void mb_cpu_class_init(ObjectClass *oc, void *data)
     mcc->parent_reset = cc->reset;
     cc->reset = mb_cpu_reset;
 
+    cc->class_by_name = mb_cpu_class_by_name;
     cc->has_work = mb_cpu_has_work;
     cc->do_interrupt = mb_cpu_do_interrupt;
     cc->cpu_exec_interrupt = mb_cpu_exec_interrupt;

target/microblaze/cpu.h

@@ -331,7 +331,6 @@ int mb_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
 int mb_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 
 void mb_tcg_init(void);
-MicroBlazeCPU *cpu_mb_init(const char *cpu_model);
 /* you can call this signal handler from your SIGBUS and SIGSEGV
    signal handlers to inform the virtual CPU of exceptions. non zero
    is returned if the signal was handled by the virtual CPU.  */
@@ -344,7 +343,7 @@ int cpu_mb_signal_handler(int host_signum, void *pinfo,
 #define TARGET_PHYS_ADDR_SPACE_BITS 32
 #define TARGET_VIRT_ADDR_SPACE_BITS 32
 
-#define cpu_init(cpu_model) CPU(cpu_mb_init(cpu_model))
+#define cpu_init(cpu_model) cpu_generic_init(TYPE_MICROBLAZE_CPU, cpu_model)
 
 #define cpu_signal_handler cpu_mb_signal_handler
 

target/microblaze/translate.c

@@ -1845,17 +1845,6 @@ void mb_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
     cpu_fprintf(f, "\n\n");
 }
 
-MicroBlazeCPU *cpu_mb_init(const char *cpu_model)
-{
-    MicroBlazeCPU *cpu;
-
-    cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU));
-
-    object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
-
-    return cpu;
-}
-
 void mb_tcg_init(void)
 {
     int i;