target/s390x: change CPU type name to "s390x-cpu"

For now, e.g. host-s390-cpu wasn't exposed to the user. cpu-add, -cpu
and the CPU model qmp interfaces didn't care about the actual type,
as that information was hidden.

This changed with CPU hotplug via device_add. Now the type is visible to
the user. Before we get that supported in a stable version, this is our
last chance to change it.

So change it from "s390-cpu" to "s390x-cpu", to match the architecture
name. Example names are then e.g. z14-s390x-cpu or qemu-s390x-cpu.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20171020115803.14093-1-david@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

qapi-schema.json

@@ -3159,12 +3159,12 @@
 # -> { "execute": "query-hotpluggable-cpus" }
 # <- {"return": [
 #      {
-#         "type": "qemu-s390-cpu", "vcpus-count": 1,
+#         "type": "qemu-s390x-cpu", "vcpus-count": 1,
 #         "props": { "core-id": 1 }
 #      },
 #      {
 #         "qom-path": "/machine/unattached/device[0]",
-#         "type": "qemu-s390-cpu", "vcpus-count": 1,
+#         "type": "qemu-s390x-cpu", "vcpus-count": 1,
 #         "props": { "core-id": 0 }
 #      }
 #    ]}

target/s390x/cpu-qom.h

@@ -22,7 +22,7 @@
 
 #include "qom/cpu.h"
 
-#define TYPE_S390_CPU "s390-cpu"
+#define TYPE_S390_CPU "s390x-cpu"
 
 #define S390_CPU_CLASS(klass) \
     OBJECT_CLASS_CHECK(S390CPUClass, (klass), TYPE_S390_CPU)

target/s390x/cpu_models.c

@@ -286,7 +286,7 @@ static void s390_print_cpu_model_list_entry(gpointer data, gpointer user_data)
         details = "(migration-safe)";
     }
 
-    /* strip off the -s390-cpu */
+    /* strip off the -s390x-cpu */
     g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0;
     (*s->cpu_fprintf)(s->file, "s390 %-15s %-35s %s\n", name, scc->desc,
                       details);
@@ -390,7 +390,7 @@ static void create_cpu_model_list(ObjectClass *klass, void *opaque)
     char *name = g_strdup(object_class_get_name(klass));
     S390CPUClass *scc = S390_CPU_CLASS(klass);
 
-    /* strip off the -s390-cpu */
+    /* strip off the -s390x-cpu */
     g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0;
     info = g_new0(CpuDefinitionInfo, 1);
     info->name = name;