i386: Return migration-safe field on query-cpu-definitions

Return the migration-safe field on query-cpu-definitions. All CPU
models in x86 are migration-safe except "host".
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170116181212.31565-1-ehabkost@redhat.com>
Acked-by: NDavid Hildenbrand <david@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

target/i386/cpu-qom.h

@@ -48,6 +48,7 @@ typedef struct X86CPUDefinition X86CPUDefinition;
  * X86CPUClass:
  * @cpu_def: CPU model definition
  * @kvm_required: Whether CPU model requires KVM to be enabled.
+ * @migration_safe: See CpuDefinitionInfo::migration_safe
  * @parent_realize: The parent class' realize handler.
  * @parent_reset: The parent class' reset handler.
  *
@@ -62,6 +63,7 @@ typedef struct X86CPUClass {
     X86CPUDefinition *cpu_def;
 
     bool kvm_required;
+    bool migration_safe;
 
     /* Optional description of CPU model.
      * If unavailable, cpu_def->model_id is used */

target/i386/cpu.c

@@ -2209,6 +2209,8 @@ static void x86_cpu_definition_entry(gpointer data, gpointer user_data)
     x86_cpu_class_check_missing_features(cc, &info->unavailable_features);
     info->has_unavailable_features = true;
     info->q_typename = g_strdup(object_class_get_name(oc));
+    info->migration_safe = cc->migration_safe;
+    info->has_migration_safe = true;
 
     entry = g_malloc0(sizeof(*entry));
     entry->value = info;
@@ -2356,6 +2358,7 @@ static void x86_cpu_cpudef_class_init(ObjectClass *oc, void *data)
     X86CPUClass *xcc = X86_CPU_CLASS(oc);
 
     xcc->cpu_def = cpudef;
+    xcc->migration_safe = true;
 }
 
 static void x86_register_cpudef_type(X86CPUDefinition *def)