diff options
Diffstat (limited to 'target-s390x/cpu_models.c')
| -rw-r--r-- | target-s390x/cpu_models.c | 149 |
1 files changed, 149 insertions, 0 deletions
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); |