[PATCH v2 3/8] machine: Print supported CPU models instead of typenames

[Gavin Shan <gshan@redhat.com>]

The supported CPU models instead of typenames should be printed when
the user specified CPU type isn't supported in is_cpu_type_supported(),
to be consistent with the CPU model specified by user through '-cpu
<model>' option.

Correct the error messages to print CPU models, maintained in the newly
added mc->valid_cpu_models because there is no fixed pattern for the
conversion between CPU model and typename. Besides, mc->valid_cpu_types
and mc->valid_cpu_models are further constified since we're here.

Signed-off-by: Gavin Shan <gshan@redhat.com>
---
 hw/core/machine.c   | 10 ++++++----
 hw/m68k/q800.c      |  8 +++++++-
 include/hw/boards.h |  3 ++-
 3 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/hw/core/machine.c b/hw/core/machine.c
index fe110e9b0a..858f8ede89 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -1362,6 +1362,8 @@ static void is_cpu_type_supported(MachineState *machine, Error **errp)
      * type is provided through '-cpu' option.
      */
     if (mc->valid_cpu_types && machine->cpu_type) {
+        assert(mc->valid_cpu_models && mc->valid_cpu_models[0]);
+
         for (i = 0; mc->valid_cpu_types[i]; i++) {
             if (object_class_dynamic_cast(oc, mc->valid_cpu_types[i])) {
                 break;
@@ -1371,10 +1373,10 @@ static void is_cpu_type_supported(MachineState *machine, Error **errp)
         /* The user specified CPU type isn't valid */
         if (!mc->valid_cpu_types[i]) {
             error_setg(errp, "Invalid CPU type: %s", machine->cpu_type);
-            error_append_hint(errp, "The valid types are: %s",
-                              mc->valid_cpu_types[0]);
-            for (i = 1; mc->valid_cpu_types[i]; i++) {
-                error_append_hint(errp, ", %s", mc->valid_cpu_types[i]);
+            error_append_hint(errp, "The valid models are: %s",
+                              mc->valid_cpu_models[0]);
+            for (i = 1; mc->valid_cpu_models[i]; i++) {
+                error_append_hint(errp, ", %s", mc->valid_cpu_models[i]);
             }
             error_append_hint(errp, "\n");
 
diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c
index b770b71d54..1e360674a7 100644
--- a/hw/m68k/q800.c
+++ b/hw/m68k/q800.c
@@ -596,11 +596,16 @@ static GlobalProperty hw_compat_q800[] = {
 };
 static const size_t hw_compat_q800_len = G_N_ELEMENTS(hw_compat_q800);
 
-static const char *q800_machine_valid_cpu_types[] = {
+static const char * const q800_machine_valid_cpu_types[] = {
     M68K_CPU_TYPE_NAME("m68040"),
     NULL
 };
 
+static const char * const q800_machine_valid_cpu_models[] = {
+    "m68040",
+    NULL
+};
+
 static void q800_machine_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
@@ -609,6 +614,7 @@ static void q800_machine_class_init(ObjectClass *oc, void *data)
     mc->init = q800_machine_init;
     mc->default_cpu_type = M68K_CPU_TYPE_NAME("m68040");
     mc->valid_cpu_types = q800_machine_valid_cpu_types;
+    mc->valid_cpu_models = q800_machine_valid_cpu_models;
     mc->max_cpus = 1;
     mc->block_default_type = IF_SCSI;
     mc->default_ram_id = "m68k_mac.ram";
diff --git a/include/hw/boards.h b/include/hw/boards.h
index ed83360198..81747b0788 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -268,7 +268,8 @@ struct MachineClass {
     bool has_hotpluggable_cpus;
     bool ignore_memory_transaction_failures;
     int numa_mem_align_shift;
-    const char **valid_cpu_types;
+    const char * const *valid_cpu_types;
+    const char * const *valid_cpu_models;
     strList *allowed_dynamic_sysbus_devices;
     bool auto_enable_numa_with_memhp;
     bool auto_enable_numa_with_memdev;
-- 
2.41.0