machine: Print CPU model name instead of CPU type

The names of supported CPU models instead of CPU types should be
printed when the user specified CPU type isn't supported, to be
consistent with the output from '-cpu ?'.

Correct the error messages to print CPU model names instead of CPU
type names.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231204004726.483558-5-gshan@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

hw/core/machine.c

@@ -1421,15 +1421,19 @@ static bool is_cpu_type_supported(const 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);
+            g_autofree char *requested = cpu_model_from_type(machine->cpu_type);
+            error_setg(errp, "Invalid CPU model: %s", requested);
             if (!mc->valid_cpu_types[1]) {
-                error_append_hint(errp, "The only valid type is: %s\n",
-                                  mc->valid_cpu_types[0]);
+                g_autofree char *model = cpu_model_from_type(
+                                                 mc->valid_cpu_types[0]);
+                error_append_hint(errp, "The only valid type is: %s\n", model);
             } else {
-                error_append_hint(errp, "The valid types are: ");
+                error_append_hint(errp, "The valid models are: ");
                 for (i = 0; mc->valid_cpu_types[i]; i++) {
+                    g_autofree char *model = cpu_model_from_type(
+                                                 mc->valid_cpu_types[i]);
                     error_append_hint(errp, "%s%s",
-                                      mc->valid_cpu_types[i],
+                                      model,
                                       mc->valid_cpu_types[i + 1] ? ", " : "");
                 }
                 error_append_hint(errp, "\n");