target-i386: Use uint32 visitor for [x]level properties

This simplifies the code and resolves TODOs.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NMichael Roth <mdroth@linux.vnet.ibm.com>

target-i386/cpu.c

@@ -723,66 +723,32 @@ static void x86_cpuid_get_level(Object *obj, Visitor *v, void *opaque,
                                 const char *name, Error **errp)
 {
     X86CPU *cpu = X86_CPU(obj);
-    int64_t value;
 
-    value = cpu->env.cpuid_level;
-    /* TODO Use visit_type_uint32() once available */
-    visit_type_int(v, &value, name, errp);
+    visit_type_uint32(v, &cpu->env.cpuid_level, name, errp);
 }
 
 static void x86_cpuid_set_level(Object *obj, Visitor *v, void *opaque,
                                 const char *name, Error **errp)
 {
     X86CPU *cpu = X86_CPU(obj);
-    const int64_t min = 0;
-    const int64_t max = UINT32_MAX;
-    int64_t value;
-
-    /* TODO Use visit_type_uint32() once available */
-    visit_type_int(v, &value, name, errp);
-    if (error_is_set(errp)) {
-        return;
-    }
-    if (value < min || value > max) {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
-                  name ? name : "null", value, min, max);
-        return;
-    }
 
-    cpu->env.cpuid_level = value;
+    visit_type_uint32(v, &cpu->env.cpuid_level, name, errp);
 }
 
 static void x86_cpuid_get_xlevel(Object *obj, Visitor *v, void *opaque,
                                  const char *name, Error **errp)
 {
     X86CPU *cpu = X86_CPU(obj);
-    int64_t value;
 
-    value = cpu->env.cpuid_xlevel;
-    /* TODO Use visit_type_uint32() once available */
-    visit_type_int(v, &value, name, errp);
+    visit_type_uint32(v, &cpu->env.cpuid_xlevel, name, errp);
 }
 
 static void x86_cpuid_set_xlevel(Object *obj, Visitor *v, void *opaque,
                                  const char *name, Error **errp)
 {
     X86CPU *cpu = X86_CPU(obj);
-    const int64_t min = 0;
-    const int64_t max = UINT32_MAX;
-    int64_t value;
-
-    /* TODO Use visit_type_uint32() once available */
-    visit_type_int(v, &value, name, errp);
-    if (error_is_set(errp)) {
-        return;
-    }
-    if (value < min || value > max) {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
-                  name ? name : "null", value, min, max);
-        return;
-    }
 
-    cpu->env.cpuid_xlevel = value;
+    visit_type_uint32(v, &cpu->env.cpuid_xlevel, name, errp);
 }
 
 static char *x86_cpuid_get_vendor(Object *obj, Error **errp)