s390x: Bump the "qemu" CPU model up to a stripped-down z13

We don't care about the other two missing base features:
- S390_FEAT_DFP_PACKED_CONVERSION
- S390_FEAT_GROUP_GEN13_PTFF
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: NDavid Hildenbrand <david@redhat.com>

hw/s390x/s390-virtio-ccw.c

@@ -669,7 +669,9 @@ DEFINE_CCW_MACHINE(4_1, "4.1", true);
 
 static void ccw_machine_4_0_instance_options(MachineState *machine)
 {
+    static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 };
     ccw_machine_4_1_instance_options(machine);
+    s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
 }
 
 static void ccw_machine_4_0_class_options(MachineClass *mc)

target/s390x/cpu_models.c

@@ -86,8 +86,8 @@ static S390CPUDef s390_cpu_defs[] = {
     CPUDEF_INIT(0x8562, 15, 1, 47, 0x08000000U, "gen15b", "IBM 8562 GA1"),
 };
 
-#define QEMU_MAX_CPU_TYPE 0x2827
-#define QEMU_MAX_CPU_GEN 12
+#define QEMU_MAX_CPU_TYPE 0x2964
+#define QEMU_MAX_CPU_GEN 13
 #define QEMU_MAX_CPU_EC_GA 2
 static const S390FeatInit qemu_max_cpu_feat_init = { S390_FEAT_LIST_QEMU_MAX };
 static S390FeatBitmap qemu_max_cpu_feat;

target/s390x/gen-features.c

@@ -689,7 +689,7 @@ static uint16_t qemu_V3_1[] = {
     S390_FEAT_MSA_EXT_4,
 };
 
-static uint16_t qemu_LATEST[] = {
+static uint16_t qemu_V4_0[] = {
     /*
      * Only BFP bits are implemented (HFP, DFP, PFPO and DIVIDE TO INTEGER not
      * implemented yet).
@@ -698,11 +698,13 @@ static uint16_t qemu_LATEST[] = {
     S390_FEAT_ZPCI,
 };
 
-/* add all new definitions before this point */
-static uint16_t qemu_MAX[] = {
-    /* z13+ features */
+static uint16_t qemu_LATEST[] = {
     S390_FEAT_STFLE_53,
     S390_FEAT_VECTOR,
+};
+
+/* add all new definitions before this point */
+static uint16_t qemu_MAX[] = {
     /* generates a dependency warning, leave it out for now */
     S390_FEAT_MSA_EXT_5,
 };
@@ -821,6 +823,7 @@ static FeatGroupDefSpec FeatGroupDef[] = {
 static FeatGroupDefSpec QemuFeatDef[] = {
     QEMU_FEAT_INITIALIZER(V2_11),
     QEMU_FEAT_INITIALIZER(V3_1),
+    QEMU_FEAT_INITIALIZER(V4_0),
     QEMU_FEAT_INITIALIZER(LATEST),
     QEMU_FEAT_INITIALIZER(MAX),
 };