target-lm32: Update VMStateDescription to LM32CPU

Add a vmstate_lm32_cpu referencing the previous VMStateDescription as a
sub-struct and hook it up to CPUClass::vmsd. Drop cpu_{save,load}().
Acked-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NAndreas Färber <afaerber@suse.de>

target-lm32/cpu-qom.h

@@ -71,6 +71,10 @@ static inline LM32CPU *lm32_env_get_cpu(CPULM32State *env)
 
 #define ENV_OFFSET offsetof(LM32CPU, env)
 
+#ifndef CONFIG_USER_ONLY
+extern const struct VMStateDescription vmstate_lm32_cpu;
+#endif
+
 void lm32_cpu_do_interrupt(CPUState *cpu);
 
 #endif

target-lm32/cpu.c

@@ -85,6 +85,7 @@ static void lm32_cpu_class_init(ObjectClass *oc, void *data)
     cc->reset = lm32_cpu_reset;
 
     cc->do_interrupt = lm32_cpu_do_interrupt;
+    cpu_class_set_vmsd(cc, &vmstate_lm32_cpu);
 }
 
 static const TypeInfo lm32_cpu_type_info = {

target-lm32/cpu.h

@@ -211,8 +211,6 @@ static inline CPULM32State *cpu_init(const char *cpu_model)
 #define cpu_gen_code cpu_lm32_gen_code
 #define cpu_signal_handler cpu_lm32_signal_handler
 
-#define CPU_SAVE_VERSION 1
-
 int cpu_lm32_handle_mmu_fault(CPULM32State *env, target_ulong address, int rw,
                               int mmu_idx);
 #define cpu_handle_mmu_fault cpu_lm32_handle_mmu_fault

target-lm32/machine.c

 #include "hw/hw.h"
 #include "hw/boards.h"
 
-static const VMStateDescription vmstate_cpu = {
-    .name = "cpu",
-    .version_id = CPU_SAVE_VERSION,
+static const VMStateDescription vmstate_env = {
+    .name = "env",
+    .version_id = 1,
     .minimum_version_id = 1,
     .minimum_version_id_old = 1,
     .fields      = (VMStateField[]) {
@@ -22,12 +22,13 @@ static const VMStateDescription vmstate_cpu = {
     }
 };
 
-void cpu_save(QEMUFile *f, void *opaque)
-{
-    vmstate_save_state(f, &vmstate_cpu, opaque);
-}
-
-int cpu_load(QEMUFile *f, void *opaque, int version_id)
-{
-    return vmstate_load_state(f, &vmstate_cpu, opaque, version_id);
-}
+const VMStateDescription vmstate_lm32_cpu = {
+    .name = "cpu",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .minimum_version_id_old = 1,
+    .fields      = (VMStateField[]) {
+        VMSTATE_STRUCT(env, LM32CPU, 1, vmstate_env, CPULM32State),
+        VMSTATE_END_OF_LIST()
+    }
+};