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-rw-r--r--target-s390x/cpu.c1
-rw-r--r--target-s390x/cpu.h1
-rw-r--r--target-s390x/cpu_models.c149
3 files changed, 151 insertions, 0 deletions
diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c
index d7d0b62ba0..2f3c8e245d 100644
--- a/target-s390x/cpu.c
+++ b/target-s390x/cpu.c
@@ -291,6 +291,7 @@ static void s390_cpu_initfn(Object *obj)
cs->exception_index = EXCP_HLT;
object_property_add(OBJECT(cpu), "id", "int64_t", s390x_cpu_get_id,
s390x_cpu_set_id, NULL, NULL, NULL);
+ s390_cpu_model_register_props(obj);
#if !defined(CONFIG_USER_ONLY)
qemu_get_timedate(&tm, 0);
env->tod_offset = TOD_UNIX_EPOCH +
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index 95601bc907..ac75360eab 100644
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -634,6 +634,7 @@ extern void subsystem_reset(void);
void s390_cpu_list(FILE *f, fprintf_function cpu_fprintf);
#define cpu_list s390_cpu_list
+void s390_cpu_model_register_props(Object *obj);
void s390_cpu_model_class_register_props(ObjectClass *oc);
void s390_realize_cpu_model(CPUState *cs, Error **errp);
ObjectClass *s390_cpu_class_by_name(const char *name);
diff --git a/target-s390x/cpu_models.c b/target-s390x/cpu_models.c
index 3a457a2024..57e3bd0a59 100644
--- a/target-s390x/cpu_models.c
+++ b/target-s390x/cpu_models.c
@@ -14,6 +14,7 @@
#include "cpu.h"
#include "gen-features.h"
#include "qapi/error.h"
+#include "qapi/visitor.h"
#ifndef CONFIG_USER_ONLY
#include "sysemu/arch_init.h"
#endif
@@ -103,8 +104,24 @@ void s390_cpu_list(FILE *f, fprintf_function print)
.f = f,
.print = print,
};
+ S390FeatGroup group;
+ S390Feat feat;
object_class_foreach(print_cpu_model_list, TYPE_S390_CPU, false, &info);
+
+ (*print)(f, "\nRecognized feature flags:\n");
+ for (feat = 0; feat < S390_FEAT_MAX; feat++) {
+ const S390FeatDef *def = s390_feat_def(feat);
+
+ (*print)(f, "%-20s %-50s\n", def->name, def->desc);
+ }
+
+ (*print)(f, "\nRecognized feature groups:\n");
+ for (group = 0; group < S390_FEAT_GROUP_MAX; group++) {
+ const S390FeatGroupDef *def = s390_feat_group_def(group);
+
+ (*print)(f, "%-20s %-50s\n", def->name, def->desc);
+ }
}
#ifndef CONFIG_USER_ONLY
@@ -151,6 +168,138 @@ void s390_realize_cpu_model(CPUState *cs, Error **errp)
}
}
+static void get_feature(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ S390Feat feat = (S390Feat) opaque;
+ S390CPU *cpu = S390_CPU(obj);
+ bool value;
+
+ if (!cpu->model) {
+ error_setg(errp, "Details about the host CPU model are not available, "
+ "features cannot be queried.");
+ return;
+ }
+
+ value = test_bit(feat, cpu->model->features);
+ visit_type_bool(v, name, &value, errp);
+}
+
+static void set_feature(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ S390Feat feat = (S390Feat) opaque;
+ DeviceState *dev = DEVICE(obj);
+ S390CPU *cpu = S390_CPU(obj);
+ bool value;
+
+ if (dev->realized) {
+ error_setg(errp, "Attempt to set property '%s' on '%s' after "
+ "it was realized", name, object_get_typename(obj));
+ return;
+ } else if (!cpu->model) {
+ error_setg(errp, "Details about the host CPU model are not available, "
+ "features cannot be changed.");
+ return;
+ }
+
+ visit_type_bool(v, name, &value, errp);
+ if (*errp) {
+ return;
+ }
+ if (value) {
+ if (!test_bit(feat, cpu->model->def->full_feat)) {
+ error_setg(errp, "Feature '%s' is not available for CPU model '%s',"
+ " it was introduced with later models.",
+ name, cpu->model->def->name);
+ return;
+ }
+ set_bit(feat, cpu->model->features);
+ } else {
+ clear_bit(feat, cpu->model->features);
+ }
+}
+
+static void get_feature_group(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ S390FeatGroup group = (S390FeatGroup) opaque;
+ const S390FeatGroupDef *def = s390_feat_group_def(group);
+ S390CPU *cpu = S390_CPU(obj);
+ S390FeatBitmap tmp;
+ bool value;
+
+ if (!cpu->model) {
+ error_setg(errp, "Details about the host CPU model are not available, "
+ "features cannot be queried.");
+ return;
+ }
+
+ /* a group is enabled if all features are enabled */
+ bitmap_and(tmp, cpu->model->features, def->feat, S390_FEAT_MAX);
+ value = bitmap_equal(tmp, def->feat, S390_FEAT_MAX);
+ visit_type_bool(v, name, &value, errp);
+}
+
+static void set_feature_group(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ S390FeatGroup group = (S390FeatGroup) opaque;
+ const S390FeatGroupDef *def = s390_feat_group_def(group);
+ DeviceState *dev = DEVICE(obj);
+ S390CPU *cpu = S390_CPU(obj);
+ bool value;
+
+ if (dev->realized) {
+ error_setg(errp, "Attempt to set property '%s' on '%s' after "
+ "it was realized", name, object_get_typename(obj));
+ return;
+ } else if (!cpu->model) {
+ error_setg(errp, "Details about the host CPU model are not available, "
+ "features cannot be changed.");
+ return;
+ }
+
+ visit_type_bool(v, name, &value, errp);
+ if (*errp) {
+ return;
+ }
+ if (value) {
+ /* groups are added in one shot, so an intersect is sufficient */
+ if (!bitmap_intersects(def->feat, cpu->model->def->full_feat,
+ S390_FEAT_MAX)) {
+ error_setg(errp, "Group '%s' is not available for CPU model '%s',"
+ " it was introduced with later models.",
+ name, cpu->model->def->name);
+ return;
+ }
+ bitmap_or(cpu->model->features, cpu->model->features, def->feat,
+ S390_FEAT_MAX);
+ } else {
+ bitmap_andnot(cpu->model->features, cpu->model->features, def->feat,
+ S390_FEAT_MAX);
+ }
+}
+
+void s390_cpu_model_register_props(Object *obj)
+{
+ S390FeatGroup group;
+ S390Feat feat;
+
+ for (feat = 0; feat < S390_FEAT_MAX; feat++) {
+ const S390FeatDef *def = s390_feat_def(feat);
+ object_property_add(obj, def->name, "bool", get_feature,
+ set_feature, NULL, (void *) feat, NULL);
+ object_property_set_description(obj, def->name, def->desc , NULL);
+ }
+ for (group = 0; group < S390_FEAT_GROUP_MAX; group++) {
+ const S390FeatGroupDef *def = s390_feat_group_def(group);
+ object_property_add(obj, def->name, "bool", get_feature_group,
+ set_feature_group, NULL, (void *) group, NULL);
+ object_property_set_description(obj, def->name, def->desc , NULL);
+ }
+}
+
static void s390_cpu_model_initfn(Object *obj)
{
S390CPU *cpu = S390_CPU(obj);
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-26 23:19:03 +0000