| /* |
| * CPU models for s390x |
| * |
| * Copyright 2016 IBM Corp. |
| * |
| * Author(s): David Hildenbrand <dahi@linux.vnet.ibm.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or (at |
| * your option) any later version. See the COPYING file in the top-level |
| * directory. |
| */ |
| |
| #include "qemu/osdep.h" |
| #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 |
| |
| #define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \ |
| { \ |
| .name = _name, \ |
| .type = _type, \ |
| .gen = _gen, \ |
| .ec_ga = _ec_ga, \ |
| .mha_pow = _mha_pow, \ |
| .hmfai = _hmfai, \ |
| .desc = _desc, \ |
| .base_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _BASE }, \ |
| .default_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _DEFAULT }, \ |
| .full_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _FULL }, \ |
| } |
| |
| /* |
| * CPU definiton list in order of release. For now, base features of a |
| * following release are always a subset of base features of the previous |
| * release. Same is correct for the other feature sets. |
| * A BC release always follows the corresponding EC release. |
| */ |
| static S390CPUDef s390_cpu_defs[] = { |
| CPUDEF_INIT(0x2064, 7, 1, 38, 0x00000000U, "z900", "IBM zSeries 900 GA1"), |
| CPUDEF_INIT(0x2064, 7, 2, 38, 0x00000000U, "z900.2", "IBM zSeries 900 GA2"), |
| CPUDEF_INIT(0x2064, 7, 3, 38, 0x00000000U, "z900.3", "IBM zSeries 900 GA3"), |
| CPUDEF_INIT(0x2066, 7, 3, 38, 0x00000000U, "z800", "IBM zSeries 800 GA1"), |
| CPUDEF_INIT(0x2084, 8, 1, 38, 0x00000000U, "z990", "IBM zSeries 990 GA1"), |
| CPUDEF_INIT(0x2084, 8, 2, 38, 0x00000000U, "z990.2", "IBM zSeries 990 GA2"), |
| CPUDEF_INIT(0x2084, 8, 3, 38, 0x00000000U, "z990.3", "IBM zSeries 990 GA3"), |
| CPUDEF_INIT(0x2086, 8, 3, 38, 0x00000000U, "z890", "IBM zSeries 880 GA1"), |
| CPUDEF_INIT(0x2084, 8, 4, 38, 0x00000000U, "z990.4", "IBM zSeries 990 GA4"), |
| CPUDEF_INIT(0x2086, 8, 4, 38, 0x00000000U, "z890.2", "IBM zSeries 880 GA2"), |
| CPUDEF_INIT(0x2084, 8, 5, 38, 0x00000000U, "z990.5", "IBM zSeries 990 GA5"), |
| CPUDEF_INIT(0x2086, 8, 5, 38, 0x00000000U, "z890.3", "IBM zSeries 880 GA3"), |
| CPUDEF_INIT(0x2094, 9, 1, 40, 0x00000000U, "z9EC", "IBM System z9 EC GA1"), |
| CPUDEF_INIT(0x2094, 9, 2, 40, 0x00000000U, "z9EC.2", "IBM System z9 EC GA2"), |
| CPUDEF_INIT(0x2096, 9, 2, 40, 0x00000000U, "z9BC", "IBM System z9 BC GA1"), |
| CPUDEF_INIT(0x2094, 9, 3, 40, 0x00000000U, "z9EC.3", "IBM System z9 EC GA3"), |
| CPUDEF_INIT(0x2096, 9, 3, 40, 0x00000000U, "z9BC.2", "IBM System z9 BC GA2"), |
| CPUDEF_INIT(0x2097, 10, 1, 43, 0x00000000U, "z10EC", "IBM System z10 EC GA1"), |
| CPUDEF_INIT(0x2097, 10, 2, 43, 0x00000000U, "z10EC.2", "IBM System z10 EC GA2"), |
| CPUDEF_INIT(0x2098, 10, 2, 43, 0x00000000U, "z10BC", "IBM System z10 BC GA1"), |
| CPUDEF_INIT(0x2097, 10, 3, 43, 0x00000000U, "z10EC.3", "IBM System z10 EC GA3"), |
| CPUDEF_INIT(0x2098, 10, 3, 43, 0x00000000U, "z10BC.2", "IBM System z10 BC GA2"), |
| CPUDEF_INIT(0x2817, 11, 1, 44, 0x08000000U, "z196", "IBM zEnterprise 196 GA1"), |
| CPUDEF_INIT(0x2817, 11, 2, 44, 0x08000000U, "z196.2", "IBM zEnterprise 196 GA2"), |
| CPUDEF_INIT(0x2818, 11, 2, 44, 0x08000000U, "z114", "IBM zEnterprise 114 GA1"), |
| CPUDEF_INIT(0x2827, 12, 1, 44, 0x08000000U, "zEC12", "IBM zEnterprise EC12 GA1"), |
| CPUDEF_INIT(0x2827, 12, 2, 44, 0x08000000U, "zEC12.2", "IBM zEnterprise EC12 GA2"), |
| CPUDEF_INIT(0x2828, 12, 2, 44, 0x08000000U, "zBC12", "IBM zEnterprise BC12 GA1"), |
| CPUDEF_INIT(0x2964, 13, 1, 47, 0x08000000U, "z13", "IBM z13 GA1"), |
| CPUDEF_INIT(0x2964, 13, 2, 47, 0x08000000U, "z13.2", "IBM z13 GA2"), |
| CPUDEF_INIT(0x2965, 13, 2, 47, 0x08000000U, "z13s", "IBM z13s GA1"), |
| }; |
| |
| struct S390PrintCpuListInfo { |
| FILE *f; |
| fprintf_function print; |
| }; |
| |
| static void print_cpu_model_list(ObjectClass *klass, void *opaque) |
| { |
| struct S390PrintCpuListInfo *info = opaque; |
| S390CPUClass *scc = S390_CPU_CLASS(klass); |
| char *name = g_strdup(object_class_get_name(klass)); |
| const char *details = ""; |
| |
| if (scc->is_static) { |
| details = "(static, migration-safe)"; |
| } else if (scc->is_migration_safe) { |
| details = "(migration-safe)"; |
| } |
| |
| /* strip off the -s390-cpu */ |
| g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; |
| (*info->print)(info->f, "s390 %-15s %-35s %s\n", name, scc->desc, |
| details); |
| g_free(name); |
| } |
| |
| void s390_cpu_list(FILE *f, fprintf_function print) |
| { |
| struct S390PrintCpuListInfo info = { |
| .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 |
| static void create_cpu_model_list(ObjectClass *klass, void *opaque) |
| { |
| CpuDefinitionInfoList **cpu_list = opaque; |
| CpuDefinitionInfoList *entry; |
| CpuDefinitionInfo *info; |
| char *name = g_strdup(object_class_get_name(klass)); |
| S390CPUClass *scc = S390_CPU_CLASS(klass); |
| |
| /* strip off the -s390-cpu */ |
| g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; |
| info = g_malloc0(sizeof(*info)); |
| info->name = name; |
| info->has_migration_safe = true; |
| info->migration_safe = scc->is_migration_safe; |
| info->q_static = scc->is_static; |
| |
| |
| entry = g_malloc0(sizeof(*entry)); |
| entry->value = info; |
| entry->next = *cpu_list; |
| *cpu_list = entry; |
| } |
| |
| CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp) |
| { |
| CpuDefinitionInfoList *list = NULL; |
| |
| object_class_foreach(create_cpu_model_list, TYPE_S390_CPU, false, &list); |
| |
| return list; |
| } |
| #endif |
| |
| void s390_realize_cpu_model(CPUState *cs, Error **errp) |
| { |
| S390CPUClass *xcc = S390_CPU_GET_CLASS(cs); |
| |
| if (xcc->kvm_required && !kvm_enabled()) { |
| error_setg(errp, "CPU definition requires KVM"); |
| return; |
| } |
| } |
| |
| 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); |
| S390CPUClass *xcc = S390_CPU_GET_CLASS(cpu); |
| |
| cpu->model = g_malloc0(sizeof(*cpu->model)); |
| /* copy the model, so we can modify it */ |
| cpu->model->def = xcc->cpu_def; |
| if (xcc->is_static) { |
| /* base model - features will never change */ |
| bitmap_copy(cpu->model->features, cpu->model->def->base_feat, |
| S390_FEAT_MAX); |
| } else { |
| /* latest model - features can change */ |
| bitmap_copy(cpu->model->features, |
| cpu->model->def->default_feat, S390_FEAT_MAX); |
| } |
| } |
| |
| #ifdef CONFIG_KVM |
| static void s390_host_cpu_model_initfn(Object *obj) |
| { |
| } |
| #endif |
| |
| static void s390_qemu_cpu_model_initfn(Object *obj) |
| { |
| S390CPU *cpu = S390_CPU(obj); |
| |
| cpu->model = g_malloc0(sizeof(*cpu->model)); |
| /* TCG emulates a z900 */ |
| cpu->model->def = &s390_cpu_defs[0]; |
| bitmap_copy(cpu->model->features, cpu->model->def->default_feat, |
| S390_FEAT_MAX); |
| } |
| |
| static void s390_cpu_model_finalize(Object *obj) |
| { |
| S390CPU *cpu = S390_CPU(obj); |
| |
| g_free(cpu->model); |
| cpu->model = NULL; |
| } |
| |
| static bool get_is_migration_safe(Object *obj, Error **errp) |
| { |
| return S390_CPU_GET_CLASS(obj)->is_migration_safe; |
| } |
| |
| static bool get_is_static(Object *obj, Error **errp) |
| { |
| return S390_CPU_GET_CLASS(obj)->is_static; |
| } |
| |
| static char *get_description(Object *obj, Error **errp) |
| { |
| return g_strdup(S390_CPU_GET_CLASS(obj)->desc); |
| } |
| |
| void s390_cpu_model_class_register_props(ObjectClass *oc) |
| { |
| object_class_property_add_bool(oc, "migration-safe", get_is_migration_safe, |
| NULL, NULL); |
| object_class_property_add_bool(oc, "static", get_is_static, |
| NULL, NULL); |
| object_class_property_add_str(oc, "description", get_description, NULL, |
| NULL); |
| } |
| |
| #ifdef CONFIG_KVM |
| static void s390_host_cpu_model_class_init(ObjectClass *oc, void *data) |
| { |
| S390CPUClass *xcc = S390_CPU_CLASS(oc); |
| |
| xcc->kvm_required = true; |
| xcc->desc = "KVM only: All recognized features"; |
| } |
| #endif |
| |
| static void s390_base_cpu_model_class_init(ObjectClass *oc, void *data) |
| { |
| S390CPUClass *xcc = S390_CPU_CLASS(oc); |
| |
| /* all base models are migration safe */ |
| xcc->cpu_def = (const S390CPUDef *) data; |
| xcc->is_migration_safe = true; |
| xcc->is_static = true; |
| xcc->desc = xcc->cpu_def->desc; |
| } |
| |
| static void s390_cpu_model_class_init(ObjectClass *oc, void *data) |
| { |
| S390CPUClass *xcc = S390_CPU_CLASS(oc); |
| |
| /* model that can change between QEMU versions */ |
| xcc->cpu_def = (const S390CPUDef *) data; |
| xcc->is_migration_safe = true; |
| xcc->desc = xcc->cpu_def->desc; |
| } |
| |
| static void s390_qemu_cpu_model_class_init(ObjectClass *oc, void *data) |
| { |
| S390CPUClass *xcc = S390_CPU_CLASS(oc); |
| |
| xcc->is_migration_safe = true; |
| xcc->desc = g_strdup_printf("QEMU Virtual CPU version %s", |
| qemu_hw_version()); |
| } |
| |
| #define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU |
| #define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX) |
| |
| /* Generate type name for a cpu model. Caller has to free the string. */ |
| static char *s390_cpu_type_name(const char *model_name) |
| { |
| return g_strdup_printf(S390_CPU_TYPE_NAME("%s"), model_name); |
| } |
| |
| /* Generate type name for a base cpu model. Caller has to free the string. */ |
| static char *s390_base_cpu_type_name(const char *model_name) |
| { |
| return g_strdup_printf(S390_CPU_TYPE_NAME("%s-base"), model_name); |
| } |
| |
| ObjectClass *s390_cpu_class_by_name(const char *name) |
| { |
| char *typename = s390_cpu_type_name(name); |
| ObjectClass *oc; |
| |
| oc = object_class_by_name(typename); |
| g_free(typename); |
| return oc; |
| } |
| |
| static const TypeInfo qemu_s390_cpu_type_info = { |
| .name = S390_CPU_TYPE_NAME("qemu"), |
| .parent = TYPE_S390_CPU, |
| .instance_init = s390_qemu_cpu_model_initfn, |
| .instance_finalize = s390_cpu_model_finalize, |
| .class_init = s390_qemu_cpu_model_class_init, |
| }; |
| |
| #ifdef CONFIG_KVM |
| static const TypeInfo host_s390_cpu_type_info = { |
| .name = S390_CPU_TYPE_NAME("host"), |
| .parent = TYPE_S390_CPU, |
| .instance_init = s390_host_cpu_model_initfn, |
| .instance_finalize = s390_cpu_model_finalize, |
| .class_init = s390_host_cpu_model_class_init, |
| }; |
| #endif |
| |
| static void register_types(void) |
| { |
| int i; |
| |
| /* init all bitmaps from gnerated data initially */ |
| for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { |
| s390_init_feat_bitmap(s390_cpu_defs[i].base_init, |
| s390_cpu_defs[i].base_feat); |
| s390_init_feat_bitmap(s390_cpu_defs[i].default_init, |
| s390_cpu_defs[i].default_feat); |
| s390_init_feat_bitmap(s390_cpu_defs[i].full_init, |
| s390_cpu_defs[i].full_feat); |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { |
| char *base_name = s390_base_cpu_type_name(s390_cpu_defs[i].name); |
| TypeInfo ti_base = { |
| .name = base_name, |
| .parent = TYPE_S390_CPU, |
| .instance_init = s390_cpu_model_initfn, |
| .instance_finalize = s390_cpu_model_finalize, |
| .class_init = s390_base_cpu_model_class_init, |
| .class_data = (void *) &s390_cpu_defs[i], |
| }; |
| char *name = s390_cpu_type_name(s390_cpu_defs[i].name); |
| TypeInfo ti = { |
| .name = name, |
| .parent = TYPE_S390_CPU, |
| .instance_init = s390_cpu_model_initfn, |
| .instance_finalize = s390_cpu_model_finalize, |
| .class_init = s390_cpu_model_class_init, |
| .class_data = (void *) &s390_cpu_defs[i], |
| }; |
| |
| type_register_static(&ti_base); |
| type_register_static(&ti); |
| g_free(base_name); |
| g_free(name); |
| } |
| |
| type_register_static(&qemu_s390_cpu_type_info); |
| #ifdef CONFIG_KVM |
| type_register_static(&host_s390_cpu_type_info); |
| #endif |
| } |
| |
| type_init(register_types) |
