target/i386: Add new property note to versioned CPU models

Add additional information for -cpu help to indicate the changes in this
version of CPU model.

Suggested-by: Eduardo Habkost <[email protected]>
Signed-off-by: Tao Xu <[email protected]>
Message-Id: <20200212081328[email protected]>
Signed-off-by: Eduardo Habkost <[email protected]>

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index c3b5cf1369aa7057a890147fc3007753a37eff28..dc784941673a80e7b39f2787d6f729daaadd1d8c 100644 (file)
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1690,6 +1690,7 @@ typedef struct PropValue {
 typedef struct X86CPUVersionDefinition {
     X86CPUVersion version;
     const char *alias;
+    const char *note;
     PropValue *props;
 } X86CPUVersionDefinition;
 
@@ -1720,6 +1721,7 @@ struct X86CPUModel {
     X86CPUDefinition *cpudef;
     /* CPU model version */
     X86CPUVersion version;
+    const char *note;
     /*
      * If true, this is an alias CPU model.
      * This matters only for "-cpu help" and query-cpu-definitions
@@ -4861,6 +4863,7 @@ static void x86_cpu_list_entry(gpointer data, gpointer user_data)
     g_autofree char *name = x86_cpu_class_get_model_name(cc);
     g_autofree char *desc = g_strdup(cc->model_description);
     g_autofree char *alias_of = x86_cpu_class_get_alias_of(cc);
+    g_autofree char *model_id = x86_cpu_class_get_model_id(cc);
 
     if (!desc && alias_of) {
         if (cc->model && cc->model->version == CPU_VERSION_AUTO) {
@@ -4869,11 +4872,14 @@ static void x86_cpu_list_entry(gpointer data, gpointer user_data)
             desc = g_strdup_printf("(alias of %s)", alias_of);
         }
     }
+    if (!desc && cc->model && cc->model->note) {
+        desc = g_strdup_printf("%s [%s]", model_id, cc->model->note);
+    }
     if (!desc) {
-        desc = x86_cpu_class_get_model_id(cc);
+        desc = g_strdup_printf("%s", model_id);
     }
 
-    qemu_printf("x86 %-20s  %-48s\n", name, desc);
+    qemu_printf("x86 %-20s  %-58s\n", name, desc);
 }
 
 /* list available CPU models and flags */
@@ -5350,6 +5356,7 @@ static void x86_register_cpudef_types(X86CPUDefinition *def)
             x86_cpu_versioned_model_name(def, vdef->version);
         m->cpudef = def;
         m->version = vdef->version;
+        m->note = vdef->note;
         x86_register_cpu_model_type(name, m);
 
         if (vdef->alias) {