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target-i386: List CPU models using subclass list

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Instead of using the builtin_x86_defs array, use the QOM subclass
list to list CPU models on "-cpu ?" and "query-cpu-definitions".

Signed-off-by: Andreas Färber <afaerber@suse.de>
[ehabkost: copied code from a patch by Andreas:
 "target-i386: QOM'ify CPU", from March 2012]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Eduardo Habkost 2016-09-30 15:49:36 -03:00
parent a2f9976ea8
commit ee465a3ef7
2 changed files with 79 additions and 30 deletions
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4
target-i386/cpu-qom.h
View File

@ -63,6 +63,10 @@ typedef struct X86CPUClass {
bool kvm_required;
/* Optional description of CPU model.
* If unavailable, cpu_def->model_id is used */
const char *model_description;
DeviceRealize parent_realize;
void (*parent_reset)(CPUState *cpu);
} X86CPUClass;

105
target-i386/cpu.c
View File

@ -1628,6 +1628,9 @@ static void host_x86_cpu_class_init(ObjectClass *oc, void *data)
cpu_x86_fill_model_id(host_cpudef.model_id);
xcc->cpu_def = &host_cpudef;
xcc->model_description =
"KVM processor with all supported host features "
"(only available in KVM mode)";
/* level, xlevel, xlevel2, and the feature words are initialized on
* instance_init, because they require KVM to be initialized.
@ -2098,23 +2101,62 @@ static void listflags(FILE *f, fprintf_function print, const char **featureset)
}
}
/* generate CPU information. */
/* Sort alphabetically by type name, listing kvm_required models last. */
static gint x86_cpu_list_compare(gconstpointer a, gconstpointer b)
{
ObjectClass *class_a = (ObjectClass *)a;
ObjectClass *class_b = (ObjectClass *)b;
X86CPUClass *cc_a = X86_CPU_CLASS(class_a);
X86CPUClass *cc_b = X86_CPU_CLASS(class_b);
const char *name_a, *name_b;
if (cc_a->kvm_required != cc_b->kvm_required) {
/* kvm_required items go last */
return cc_a->kvm_required ? 1 : -1;
} else {
name_a = object_class_get_name(class_a);
name_b = object_class_get_name(class_b);
return strcmp(name_a, name_b);
}
}
static GSList *get_sorted_cpu_model_list(void)
{
GSList *list = object_class_get_list(TYPE_X86_CPU, false);
list = g_slist_sort(list, x86_cpu_list_compare);
return list;
}
static void x86_cpu_list_entry(gpointer data, gpointer user_data)
{
ObjectClass *oc = data;
X86CPUClass *cc = X86_CPU_CLASS(oc);
CPUListState *s = user_data;
char *name = x86_cpu_class_get_model_name(cc);
const char *desc = cc->model_description;
if (!desc) {
desc = cc->cpu_def->model_id;
}
(*s->cpu_fprintf)(s->file, "x86 %16s %-48s\n",
name, desc);
g_free(name);
}
/* list available CPU models and flags */
void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf)
{
X86CPUDefinition *def;
char buf[256];
int i;
CPUListState s = {
.file = f,
.cpu_fprintf = cpu_fprintf,
};
GSList *list;
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
def = &builtin_x86_defs[i];
snprintf(buf, sizeof(buf), "%s", def->name);
(*cpu_fprintf)(f, "x86 %16s %-48s\n", buf, def->model_id);
}
#ifdef CONFIG_KVM
(*cpu_fprintf)(f, "x86 %16s %-48s\n", "host",
"KVM processor with all supported host features "
"(only available in KVM mode)");
#endif
(*cpu_fprintf)(f, "Available CPUs:\n");
list = get_sorted_cpu_model_list();
g_slist_foreach(list, x86_cpu_list_entry, &s);
g_slist_free(list);
(*cpu_fprintf)(f, "\nRecognized CPUID flags:\n");
for (i = 0; i < ARRAY_SIZE(feature_word_info); i++) {
@ -2126,26 +2168,29 @@ void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf)
}
}
static void x86_cpu_definition_entry(gpointer data, gpointer user_data)
{
ObjectClass *oc = data;
X86CPUClass *cc = X86_CPU_CLASS(oc);
CpuDefinitionInfoList **cpu_list = user_data;
CpuDefinitionInfoList *entry;
CpuDefinitionInfo *info;
info = g_malloc0(sizeof(*info));
info->name = x86_cpu_class_get_model_name(cc);
entry = g_malloc0(sizeof(*entry));
entry->value = info;
entry->next = *cpu_list;
*cpu_list = entry;
}
CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp)
{
CpuDefinitionInfoList *cpu_list = NULL;
X86CPUDefinition *def;
int i;
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
CpuDefinitionInfoList *entry;
CpuDefinitionInfo *info;
def = &builtin_x86_defs[i];
info = g_malloc0(sizeof(*info));
info->name = g_strdup(def->name);
entry = g_malloc0(sizeof(*entry));
entry->value = info;
entry->next = cpu_list;
cpu_list = entry;
}
GSList *list = get_sorted_cpu_model_list();
g_slist_foreach(list, x86_cpu_definition_entry, &cpu_list);
g_slist_free(list);
return cpu_list;
}