diff options
Diffstat (limited to 'target/s390x/cpu_models.c')
| -rw-r--r-- | target/s390x/cpu_models.c | 707 |
1 files changed, 187 insertions, 520 deletions
diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index 7c253ff308..8ed3bb6a27 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -12,18 +12,19 @@ #include "qemu/osdep.h" #include "cpu.h" -#include "internal.h" -#include "kvm_s390x.h" +#include "s390x-internal.h" +#include "kvm/kvm_s390x.h" #include "sysemu/kvm.h" +#include "sysemu/tcg.h" #include "qapi/error.h" -#include "qapi/visitor.h" #include "qemu/error-report.h" -#include "qapi/qmp/qerror.h" -#include "qapi/qobject-input-visitor.h" -#include "qapi/qmp/qdict.h" +#include "qapi/visitor.h" +#include "qemu/module.h" +#include "qemu/hw-version.h" +#include "qemu/qemu-print.h" #ifndef CONFIG_USER_ONLY -#include "sysemu/arch_init.h" -#include "hw/pci/pci.h" +#include "sysemu/sysemu.h" +#include "target/s390x/kvm/pv.h" #endif #define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \ @@ -41,10 +42,9 @@ } /* - * 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. + * CPU definition list in order of release. Up to generation 14 base features + * of a following release have been a superset of the previous release. With + * generation 15 one base feature and one optional feature have been deprecated. */ static S390CPUDef s390_cpu_defs[] = { CPUDEF_INIT(0x2064, 7, 1, 38, 0x00000000U, "z900", "IBM zSeries 900 GA1"), @@ -79,13 +79,17 @@ static S390CPUDef s390_cpu_defs[] = { CPUDEF_INIT(0x2964, 13, 2, 47, 0x08000000U, "z13.2", "IBM z13 GA2"), CPUDEF_INIT(0x2965, 13, 2, 47, 0x08000000U, "z13s", "IBM z13s GA1"), CPUDEF_INIT(0x3906, 14, 1, 47, 0x08000000U, "z14", "IBM z14 GA1"), + CPUDEF_INIT(0x3906, 14, 2, 47, 0x08000000U, "z14.2", "IBM z14 GA2"), CPUDEF_INIT(0x3907, 14, 1, 47, 0x08000000U, "z14ZR1", "IBM z14 Model ZR1 GA1"), + CPUDEF_INIT(0x8561, 15, 1, 47, 0x08000000U, "gen15a", "IBM z15 T01 GA1"), + CPUDEF_INIT(0x8562, 15, 1, 47, 0x08000000U, "gen15b", "IBM z15 T02 GA1"), + CPUDEF_INIT(0x3931, 16, 1, 47, 0x08000000U, "gen16a", "IBM 3931 GA1"), + CPUDEF_INIT(0x3932, 16, 1, 47, 0x08000000U, "gen16b", "IBM 3932 GA1"), }; -#define QEMU_MAX_CPU_TYPE 0x2827 -#define QEMU_MAX_CPU_GEN 12 -#define QEMU_MAX_CPU_EC_GA 2 -static const S390FeatInit qemu_max_cpu_feat_init = { S390_FEAT_LIST_QEMU_MAX }; +#define QEMU_MAX_CPU_TYPE 0x8561 +#define QEMU_MAX_CPU_GEN 15 +#define QEMU_MAX_CPU_EC_GA 1 static S390FeatBitmap qemu_max_cpu_feat; /* features part of a base model but not relevant for finding a base model */ @@ -117,6 +121,30 @@ void s390_cpudef_featoff_greater(uint8_t gen, uint8_t ec_ga, S390Feat feat) } } +void s390_cpudef_group_featoff_greater(uint8_t gen, uint8_t ec_ga, + S390FeatGroup group) +{ + const S390FeatGroupDef *group_def = s390_feat_group_def(group); + S390FeatBitmap group_def_off; + int i; + + bitmap_complement(group_def_off, group_def->feat, S390_FEAT_MAX); + + for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { + const S390CPUDef *cpu_def = &s390_cpu_defs[i]; + + if (cpu_def->gen < gen) { + continue; + } + if (cpu_def->gen == gen && cpu_def->ec_ga < ec_ga) { + continue; + } + + bitmap_and((unsigned long *)&cpu_def->default_feat, + cpu_def->default_feat, group_def_off, S390_FEAT_MAX); + } +} + uint32_t s390_get_hmfai(void) { static S390CPU *cpu; @@ -168,11 +196,7 @@ uint32_t s390_get_ibc_val(void) void s390_get_feat_block(S390FeatType type, uint8_t *data) { - static S390CPU *cpu; - - if (!cpu) { - cpu = S390_CPU(qemu_get_cpu(0)); - } + S390CPU *cpu = S390_CPU(first_cpu); if (!cpu || !cpu->model) { return; @@ -208,6 +232,33 @@ bool s390_has_feat(S390Feat feat) } return 0; } + +#ifndef CONFIG_USER_ONLY + if (s390_is_pv()) { + switch (feat) { + case S390_FEAT_DIAG_318: + case S390_FEAT_HPMA2: + case S390_FEAT_SIE_F2: + case S390_FEAT_SIE_SKEY: + case S390_FEAT_SIE_GPERE: + case S390_FEAT_SIE_SIIF: + case S390_FEAT_SIE_SIGPIF: + case S390_FEAT_SIE_IB: + case S390_FEAT_SIE_CEI: + case S390_FEAT_SIE_KSS: + case S390_FEAT_SIE_GSLS: + case S390_FEAT_SIE_64BSCAO: + case S390_FEAT_SIE_CMMA: + case S390_FEAT_SIE_PFMFI: + case S390_FEAT_SIE_IBS: + case S390_FEAT_CONFIGURATION_TOPOLOGY: + return false; + break; + default: + break; + } + } +#endif return test_bit(feat, cpu->model->features); } @@ -282,21 +333,32 @@ const S390CPUDef *s390_find_cpu_def(uint16_t type, uint8_t gen, uint8_t ec_ga, static void s390_print_cpu_model_list_entry(gpointer data, gpointer user_data) { - CPUListState *s = user_data; const S390CPUClass *scc = S390_CPU_CLASS((ObjectClass *)data); + CPUClass *cc = CPU_CLASS(scc); char *name = g_strdup(object_class_get_name((ObjectClass *)data)); - const char *details = ""; + g_autoptr(GString) details = g_string_new(""); if (scc->is_static) { - details = "(static, migration-safe)"; - } else if (scc->is_migration_safe) { - details = "(migration-safe)"; + g_string_append(details, "static, "); + } + if (scc->is_migration_safe) { + g_string_append(details, "migration-safe, "); + } + if (cc->deprecation_note) { + g_string_append(details, "deprecated, "); + } + if (details->len) { + /* cull trailing ', ' */ + g_string_truncate(details, details->len - 2); } /* strip off the -s390x-cpu */ g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; - (*s->cpu_fprintf)(s->file, "s390 %-15s %-35s %s\n", name, scc->desc, - details); + if (details->len) { + qemu_printf("s390 %-15s %-35s (%s)\n", name, scc->desc, details->str); + } else { + qemu_printf("s390 %-15s %-35s\n", name, scc->desc); + } g_free(name); } @@ -334,414 +396,32 @@ static gint s390_cpu_list_compare(gconstpointer a, gconstpointer b) return cc_a->is_static ? -1 : 1; } -void s390_cpu_list(FILE *f, fprintf_function print) +void s390_cpu_list(void) { - CPUListState s = { - .file = f, - .cpu_fprintf = print, - }; S390FeatGroup group; S390Feat feat; GSList *list; list = object_class_get_list(TYPE_S390_CPU, false); list = g_slist_sort(list, s390_cpu_list_compare); - g_slist_foreach(list, s390_print_cpu_model_list_entry, &s); + g_slist_foreach(list, s390_print_cpu_model_list_entry, NULL); g_slist_free(list); - (*print)(f, "\nRecognized feature flags:\n"); + qemu_printf("\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); + qemu_printf("%-20s %s\n", def->name, def->desc); } - (*print)(f, "\nRecognized feature groups:\n"); + qemu_printf("\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); - } -} - -static S390CPUModel *get_max_cpu_model(Error **errp); - -#ifndef CONFIG_USER_ONLY -static void list_add_feat(const char *name, void *opaque); - -static void check_unavailable_features(const S390CPUModel *max_model, - const S390CPUModel *model, - strList **unavailable) -{ - S390FeatBitmap missing; - - /* check general model compatibility */ - if (max_model->def->gen < model->def->gen || - (max_model->def->gen == model->def->gen && - max_model->def->ec_ga < model->def->ec_ga)) { - list_add_feat("type", unavailable); - } - - /* detect missing features if any to properly report them */ - bitmap_andnot(missing, model->features, max_model->features, - S390_FEAT_MAX); - if (!bitmap_empty(missing, S390_FEAT_MAX)) { - s390_feat_bitmap_to_ascii(missing, unavailable, list_add_feat); - } -} - -struct CpuDefinitionInfoListData { - CpuDefinitionInfoList *list; - S390CPUModel *model; -}; - -static void create_cpu_model_list(ObjectClass *klass, void *opaque) -{ - struct CpuDefinitionInfoListData *cpu_list_data = opaque; - CpuDefinitionInfoList **cpu_list = &cpu_list_data->list; - CpuDefinitionInfoList *entry; - CpuDefinitionInfo *info; - char *name = g_strdup(object_class_get_name(klass)); - S390CPUClass *scc = S390_CPU_CLASS(klass); - - /* strip off the -s390x-cpu */ - g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; - info = g_new0(CpuDefinitionInfo, 1); - info->name = name; - info->has_migration_safe = true; - info->migration_safe = scc->is_migration_safe; - info->q_static = scc->is_static; - info->q_typename = g_strdup(object_class_get_name(klass)); - /* check for unavailable features */ - if (cpu_list_data->model) { - Object *obj; - S390CPU *sc; - obj = object_new(object_class_get_name(klass)); - sc = S390_CPU(obj); - if (sc->model) { - info->has_unavailable_features = true; - check_unavailable_features(cpu_list_data->model, sc->model, - &info->unavailable_features); - } - object_unref(obj); - } - - entry = g_new0(CpuDefinitionInfoList, 1); - entry->value = info; - entry->next = *cpu_list; - *cpu_list = entry; -} - -CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp) -{ - struct CpuDefinitionInfoListData list_data = { - .list = NULL, - }; - - list_data.model = get_max_cpu_model(errp); - if (*errp) { - error_free(*errp); - *errp = NULL; - } - - object_class_foreach(create_cpu_model_list, TYPE_S390_CPU, false, - &list_data); - - return list_data.list; -} - -static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info, - Error **errp) -{ - const QDict *qdict = NULL; - const QDictEntry *e; - Visitor *visitor; - ObjectClass *oc; - S390CPU *cpu; - Object *obj; - - if (info->props) { - qdict = qobject_to(QDict, info->props); - if (!qdict) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); - return; - } - } - - oc = cpu_class_by_name(TYPE_S390_CPU, info->name); - if (!oc) { - error_setg(errp, "The CPU definition \'%s\' is unknown.", info->name); - return; - } - if (S390_CPU_CLASS(oc)->kvm_required && !kvm_enabled()) { - error_setg(errp, "The CPU definition '%s' requires KVM", info->name); - return; - } - obj = object_new(object_class_get_name(oc)); - cpu = S390_CPU(obj); - - if (!cpu->model) { - error_setg(errp, "Details about the host CPU model are not available, " - "it cannot be used."); - object_unref(obj); - return; - } - - if (qdict) { - visitor = qobject_input_visitor_new(info->props); - visit_start_struct(visitor, NULL, NULL, 0, errp); - if (*errp) { - object_unref(obj); - return; - } - for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) { - object_property_set(obj, visitor, e->key, errp); - if (*errp) { - break; - } - } - if (!*errp) { - visit_check_struct(visitor, errp); - } - visit_end_struct(visitor, NULL); - visit_free(visitor); - if (*errp) { - object_unref(obj); - return; - } - } - - /* copy the model and throw the cpu away */ - memcpy(model, cpu->model, sizeof(*model)); - object_unref(obj); -} - -static void qdict_add_disabled_feat(const char *name, void *opaque) -{ - qdict_put_bool(opaque, name, false); -} - -static void qdict_add_enabled_feat(const char *name, void *opaque) -{ - qdict_put_bool(opaque, name, true); -} - -/* convert S390CPUDef into a static CpuModelInfo */ -static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model, - bool delta_changes) -{ - QDict *qdict = qdict_new(); - S390FeatBitmap bitmap; - - /* always fallback to the static base model */ - info->name = g_strdup_printf("%s-base", model->def->name); - - if (delta_changes) { - /* features deleted from the base feature set */ - bitmap_andnot(bitmap, model->def->base_feat, model->features, - S390_FEAT_MAX); - if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { - s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); - } - - /* features added to the base feature set */ - bitmap_andnot(bitmap, model->features, model->def->base_feat, - S390_FEAT_MAX); - if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { - s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_enabled_feat); - } - } else { - /* expand all features */ - s390_feat_bitmap_to_ascii(model->features, qdict, - qdict_add_enabled_feat); - bitmap_complement(bitmap, model->features, S390_FEAT_MAX); - s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); - } - - if (!qdict_size(qdict)) { - qobject_unref(qdict); - } else { - info->props = QOBJECT(qdict); - info->has_props = true; - } -} - -CpuModelExpansionInfo *arch_query_cpu_model_expansion(CpuModelExpansionType type, - CpuModelInfo *model, - Error **errp) -{ - CpuModelExpansionInfo *expansion_info = NULL; - S390CPUModel s390_model; - bool delta_changes = false; - - /* convert it to our internal representation */ - cpu_model_from_info(&s390_model, model, errp); - if (*errp) { - return NULL; + qemu_printf("%-20s %s\n", def->name, def->desc); } - - if (type == CPU_MODEL_EXPANSION_TYPE_STATIC) { - delta_changes = true; - } else if (type != CPU_MODEL_EXPANSION_TYPE_FULL) { - error_setg(errp, "The requested expansion type is not supported."); - return NULL; - } - - /* convert it back to a static representation */ - expansion_info = g_new0(CpuModelExpansionInfo, 1); - expansion_info->model = g_malloc0(sizeof(*expansion_info->model)); - cpu_info_from_model(expansion_info->model, &s390_model, delta_changes); - return expansion_info; -} - -static void list_add_feat(const char *name, void *opaque) -{ - strList **last = (strList **) opaque; - strList *entry; - - entry = g_new0(strList, 1); - entry->value = g_strdup(name); - entry->next = *last; - *last = entry; } -CpuModelCompareInfo *arch_query_cpu_model_comparison(CpuModelInfo *infoa, - CpuModelInfo *infob, - Error **errp) -{ - CpuModelCompareResult feat_result, gen_result; - CpuModelCompareInfo *compare_info; - S390FeatBitmap missing, added; - S390CPUModel modela, modelb; - - /* convert both models to our internal representation */ - cpu_model_from_info(&modela, infoa, errp); - if (*errp) { - return NULL; - } - cpu_model_from_info(&modelb, infob, errp); - if (*errp) { - return NULL; - } - compare_info = g_new0(CpuModelCompareInfo, 1); - - /* check the cpu generation and ga level */ - if (modela.def->gen == modelb.def->gen) { - if (modela.def->ec_ga == modelb.def->ec_ga) { - /* ec and corresponding bc are identical */ - gen_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL; - } else if (modela.def->ec_ga < modelb.def->ec_ga) { - gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET; - } else { - gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; - } - } else if (modela.def->gen < modelb.def->gen) { - gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET; - } else { - gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; - } - if (gen_result != CPU_MODEL_COMPARE_RESULT_IDENTICAL) { - /* both models cannot be made identical */ - list_add_feat("type", &compare_info->responsible_properties); - } - - /* check the feature set */ - if (bitmap_equal(modela.features, modelb.features, S390_FEAT_MAX)) { - feat_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL; - } else { - bitmap_andnot(missing, modela.features, modelb.features, S390_FEAT_MAX); - s390_feat_bitmap_to_ascii(missing, - &compare_info->responsible_properties, - list_add_feat); - bitmap_andnot(added, modelb.features, modela.features, S390_FEAT_MAX); - s390_feat_bitmap_to_ascii(added, &compare_info->responsible_properties, - list_add_feat); - if (bitmap_empty(missing, S390_FEAT_MAX)) { - feat_result = CPU_MODEL_COMPARE_RESULT_SUBSET; - } else if (bitmap_empty(added, S390_FEAT_MAX)) { - feat_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; - } else { - feat_result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE; - } - } - - /* combine the results */ - if (gen_result == feat_result) { - compare_info->result = gen_result; - } else if (feat_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) { - compare_info->result = gen_result; - } else if (gen_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) { - compare_info->result = feat_result; - } else { - compare_info->result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE; - } - return compare_info; -} - -CpuModelBaselineInfo *arch_query_cpu_model_baseline(CpuModelInfo *infoa, - CpuModelInfo *infob, - Error **errp) -{ - CpuModelBaselineInfo *baseline_info; - S390CPUModel modela, modelb, model; - uint16_t cpu_type; - uint8_t max_gen_ga; - uint8_t max_gen; - - /* convert both models to our internal representation */ - cpu_model_from_info(&modela, infoa, errp); - if (*errp) { - return NULL; - } - - cpu_model_from_info(&modelb, infob, errp); - if (*errp) { - return NULL; - } - - /* features both models support */ - bitmap_and(model.features, modela.features, modelb.features, S390_FEAT_MAX); - - /* detect the maximum model not regarding features */ - if (modela.def->gen == modelb.def->gen) { - if (modela.def->type == modelb.def->type) { - cpu_type = modela.def->type; - } else { - cpu_type = 0; - } - max_gen = modela.def->gen; - max_gen_ga = MIN(modela.def->ec_ga, modelb.def->ec_ga); - } else if (modela.def->gen > modelb.def->gen) { - cpu_type = modelb.def->type; - max_gen = modelb.def->gen; - max_gen_ga = modelb.def->ec_ga; - } else { - cpu_type = modela.def->type; - max_gen = modela.def->gen; - max_gen_ga = modela.def->ec_ga; - } - - model.def = s390_find_cpu_def(cpu_type, max_gen, max_gen_ga, - model.features); - - /* models without early base features (esan3) are bad */ - if (!model.def) { - error_setg(errp, "No compatible CPU model could be created as" - " important base features are disabled"); - return NULL; - } - - /* strip off features not part of the max model */ - bitmap_and(model.features, model.features, model.def->full_feat, - S390_FEAT_MAX); - - baseline_info = g_new0(CpuModelBaselineInfo, 1); - baseline_info->model = g_malloc0(sizeof(*baseline_info->model)); - cpu_info_from_model(baseline_info->model, &model, true); - return baseline_info; -} -#endif - static void check_consistency(const S390CPUModel *model) { static int dep[][2] = { @@ -761,8 +441,12 @@ static void check_consistency(const S390CPUModel *model) { S390_FEAT_SIE_CMMA, S390_FEAT_SIE_GSLS }, { S390_FEAT_SIE_PFMFI, S390_FEAT_EDAT }, { S390_FEAT_MSA_EXT_8, S390_FEAT_MSA_EXT_3 }, + { S390_FEAT_MSA_EXT_9, S390_FEAT_MSA_EXT_3 }, + { S390_FEAT_MSA_EXT_9, S390_FEAT_MSA_EXT_4 }, { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_TOD_CLOCK_STEERING }, { S390_FEAT_VECTOR_PACKED_DECIMAL, S390_FEAT_VECTOR }, + { S390_FEAT_VECTOR_PACKED_DECIMAL_ENH, S390_FEAT_VECTOR_PACKED_DECIMAL }, + { S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH }, { S390_FEAT_VECTOR_ENH, S390_FEAT_VECTOR }, { S390_FEAT_INSTRUCTION_EXEC_PROT, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2 }, { S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2, S390_FEAT_ESOP }, @@ -788,6 +472,16 @@ static void check_consistency(const S390CPUModel *model) { S390_FEAT_SIE_KSS, S390_FEAT_SIE_F2 }, { S390_FEAT_AP_QUERY_CONFIG_INFO, S390_FEAT_AP }, { S390_FEAT_AP_FACILITIES_TEST, S390_FEAT_AP }, + { S390_FEAT_PTFF_QSIE, S390_FEAT_MULTIPLE_EPOCH }, + { S390_FEAT_PTFF_QTOUE, S390_FEAT_MULTIPLE_EPOCH }, + { S390_FEAT_PTFF_STOE, S390_FEAT_MULTIPLE_EPOCH }, + { S390_FEAT_PTFF_STOUE, S390_FEAT_MULTIPLE_EPOCH }, + { S390_FEAT_AP_QUEUE_INTERRUPT_CONTROL, S390_FEAT_AP }, + { S390_FEAT_DIAG_318, S390_FEAT_EXTENDED_LENGTH_SCCB }, + { S390_FEAT_NNPA, S390_FEAT_VECTOR }, + { S390_FEAT_RDP, S390_FEAT_LOCAL_TLB_CLEARING }, + { S390_FEAT_UV_FEAT_AP, S390_FEAT_AP }, + { S390_FEAT_UV_FEAT_AP_INTR, S390_FEAT_UV_FEAT_AP }, }; int i; @@ -806,23 +500,39 @@ static void error_prepend_missing_feat(const char *name, void *opaque) error_prepend((Error **) opaque, "%s ", name); } +static void check_compat_model_failed(Error **errp, + const S390CPUModel *max_model, + const char *msg) +{ + error_setg(errp, "%s. Maximum supported model in the current configuration: \'%s\'", + msg, max_model->def->name); + error_append_hint(errp, "Consider a different accelerator, try \"-accel help\"\n"); + return; +} + static void check_compatibility(const S390CPUModel *max_model, const S390CPUModel *model, Error **errp) { + ERRP_GUARD(); S390FeatBitmap missing; if (model->def->gen > max_model->def->gen) { - error_setg(errp, "Selected CPU generation is too new. Maximum " - "supported model in the configuration: \'%s\'", - max_model->def->name); + check_compat_model_failed(errp, max_model, "Selected CPU generation is too new"); return; } else if (model->def->gen == max_model->def->gen && model->def->ec_ga > max_model->def->ec_ga) { - error_setg(errp, "Selected CPU GA level is too new. Maximum " - "supported model in the configuration: \'%s\'", - max_model->def->name); + check_compat_model_failed(errp, max_model, "Selected CPU GA level is too new"); + return; + } + +#ifndef CONFIG_USER_ONLY + if (only_migratable && test_bit(S390_FEAT_UNPACK, model->features)) { + error_setg(errp, "The unpack facility is not compatible with " + "the --only-migratable option. You must remove either " + "the 'unpack' facility or the --only-migratable option"); return; } +#endif /* detect the missing features to properly report them */ bitmap_andnot(missing, model->features, max_model->features, S390_FEAT_MAX); @@ -833,11 +543,14 @@ static void check_compatibility(const S390CPUModel *max_model, error_setg(errp, " "); s390_feat_bitmap_to_ascii(missing, errp, error_prepend_missing_feat); error_prepend(errp, "Some features requested in the CPU model are not " - "available in the configuration: "); + "available in the current configuration: "); + error_append_hint(errp, + "Consider a different accelerator, QEMU, or kernel version\n"); } -static S390CPUModel *get_max_cpu_model(Error **errp) +S390CPUModel *get_max_cpu_model(Error **errp) { + Error *err = NULL; static S390CPUModel max_model; static bool cached; @@ -846,51 +559,24 @@ static S390CPUModel *get_max_cpu_model(Error **errp) } if (kvm_enabled()) { - kvm_s390_get_host_cpu_model(&max_model, errp); + kvm_s390_get_host_cpu_model(&max_model, &err); } else { max_model.def = s390_find_cpu_def(QEMU_MAX_CPU_TYPE, QEMU_MAX_CPU_GEN, QEMU_MAX_CPU_EC_GA, NULL); bitmap_copy(max_model.features, qemu_max_cpu_feat, S390_FEAT_MAX); - } - if (!*errp) { - cached = true; - return &max_model; - } - return NULL; -} - -static inline void apply_cpu_model(const S390CPUModel *model, Error **errp) -{ -#ifndef CONFIG_USER_ONLY - static S390CPUModel applied_model; - static bool applied; - - /* - * We have the same model for all VCPUs. KVM can only be configured before - * any VCPUs are defined in KVM. - */ - if (applied) { - if (model && memcmp(&applied_model, model, sizeof(S390CPUModel))) { - error_setg(errp, "Mixed CPU models are not supported on s390x."); - } - return; - } - - if (kvm_enabled()) { - kvm_s390_apply_cpu_model(model, errp); } - - if (!*errp) { - applied = true; - if (model) { - applied_model = *model; - } + if (err) { + error_propagate(errp, err); + return NULL; } -#endif + cached = true; + return &max_model; } void s390_realize_cpu_model(CPUState *cs, Error **errp) { + ERRP_GUARD(); + Error *err = NULL; S390CPUClass *xcc = S390_CPU_GET_CLASS(cs); S390CPU *cpu = S390_CPU(cs); const S390CPUModel *max_model; @@ -907,7 +593,7 @@ void s390_realize_cpu_model(CPUState *cs, Error **errp) } max_model = get_max_cpu_model(errp); - if (*errp) { + if (!max_model) { error_prepend(errp, "CPU models are not available: "); return; } @@ -919,8 +605,9 @@ void s390_realize_cpu_model(CPUState *cs, Error **errp) cpu->model->cpu_ver = max_model->cpu_ver; check_consistency(cpu->model); - check_compatibility(max_model, cpu->model, errp); - if (*errp) { + check_compatibility(max_model, cpu->model, &err); + if (err) { + error_propagate(errp, err); return; } @@ -929,8 +616,8 @@ void s390_realize_cpu_model(CPUState *cs, Error **errp) #if !defined(CONFIG_USER_ONLY) cpu->env.cpuid = s390_cpuid_from_cpu_model(cpu->model); if (tcg_enabled()) { - /* basic mode, write the cpu address into the first 4 bit of the ID */ - cpu->env.cpuid = deposit64(cpu->env.cpuid, 54, 4, cpu->env.core_id); + cpu->env.cpuid = deposit64(cpu->env.cpuid, CPU_PHYS_ADDR_SHIFT, + CPU_PHYS_ADDR_BITS, cpu->env.core_id); } #endif } @@ -938,7 +625,7 @@ 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; + S390Feat feat = (S390Feat) (uintptr_t) opaque; S390CPU *cpu = S390_CPU(obj); bool value; @@ -955,7 +642,7 @@ static void get_feature(Object *obj, Visitor *v, const char *name, static void set_feature(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { - S390Feat feat = (S390Feat) opaque; + S390Feat feat = (S390Feat) (uintptr_t) opaque; DeviceState *dev = DEVICE(obj); S390CPU *cpu = S390_CPU(obj); bool value; @@ -970,8 +657,7 @@ static void set_feature(Object *obj, Visitor *v, const char *name, return; } - visit_type_bool(v, name, &value, errp); - if (*errp) { + if (!visit_type_bool(v, name, &value, errp)) { return; } if (value) { @@ -990,7 +676,7 @@ static void set_feature(Object *obj, Visitor *v, const char *name, static void get_feature_group(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { - S390FeatGroup group = (S390FeatGroup) opaque; + S390FeatGroup group = (S390FeatGroup) (uintptr_t) opaque; const S390FeatGroupDef *def = s390_feat_group_def(group); S390CPU *cpu = S390_CPU(obj); S390FeatBitmap tmp; @@ -1011,7 +697,7 @@ static void get_feature_group(Object *obj, Visitor *v, const char *name, static void set_feature_group(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { - S390FeatGroup group = (S390FeatGroup) opaque; + S390FeatGroup group = (S390FeatGroup) (uintptr_t) opaque; const S390FeatGroupDef *def = s390_feat_group_def(group); DeviceState *dev = DEVICE(obj); S390CPU *cpu = S390_CPU(obj); @@ -1027,8 +713,7 @@ static void set_feature_group(Object *obj, Visitor *v, const char *name, return; } - visit_type_bool(v, name, &value, errp); - if (*errp) { + if (!visit_type_bool(v, name, &value, errp)) { return; } if (value) { @@ -1048,25 +733,6 @@ static void set_feature_group(Object *obj, Visitor *v, const char *name, } } -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); @@ -1086,7 +752,6 @@ static void s390_cpu_model_initfn(Object *obj) } } -static S390CPUDef s390_qemu_cpu_def; static S390CPUModel s390_qemu_cpu_model; /* Set the qemu CPU model (on machine initialization). Must not be called @@ -1098,19 +763,10 @@ void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga, const S390CPUDef *def = s390_find_cpu_def(type, gen, ec_ga, NULL); g_assert(def); - g_assert(QTAILQ_EMPTY_RCU(&cpus)); - - /* TCG emulates some features that can usually not be enabled with - * the emulated machine generation. Make sure they can be enabled - * when using the QEMU model by adding them to full_feat. We have - * to copy the definition to do that. - */ - memcpy(&s390_qemu_cpu_def, def, sizeof(s390_qemu_cpu_def)); - bitmap_or(s390_qemu_cpu_def.full_feat, s390_qemu_cpu_def.full_feat, - qemu_max_cpu_feat, S390_FEAT_MAX); + g_assert(QTAILQ_EMPTY_RCU(&cpus_queue)); /* build the CPU model */ - s390_qemu_cpu_model.def = &s390_qemu_cpu_def; + s390_qemu_cpu_model.def = def; bitmap_zero(s390_qemu_cpu_model.features, S390_FEAT_MAX); s390_init_feat_bitmap(feat_init, s390_qemu_cpu_model.features); } @@ -1174,12 +830,27 @@ static char *get_description(Object *obj, Error **errp) void s390_cpu_model_class_register_props(ObjectClass *oc) { + S390FeatGroup group; + S390Feat feat; + object_class_property_add_bool(oc, "migration-safe", get_is_migration_safe, - NULL, 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); + NULL); + object_class_property_add_str(oc, "description", get_description, NULL); + + for (feat = 0; feat < S390_FEAT_MAX; feat++) { + const S390FeatDef *def = s390_feat_def(feat); + object_class_property_add(oc, def->name, "bool", get_feature, + set_feature, NULL, (void *) feat); + object_class_property_set_description(oc, def->name, def->desc); + } + for (group = 0; group < S390_FEAT_GROUP_MAX; group++) { + const S390FeatGroupDef *def = s390_feat_group_def(group); + object_class_property_add(oc, def->name, "bool", get_feature_group, + set_feature_group, NULL, (void *) group); + object_class_property_set_description(oc, def->name, def->desc); + } } #ifdef CONFIG_KVM @@ -1228,9 +899,8 @@ static void s390_max_cpu_model_class_init(ObjectClass *oc, void *data) /* * The "max" model is neither static nor migration safe. Under KVM - * it represents the "host" model. Under TCG it represents some kind of - * "qemu" CPU model without compat handling and maybe with some additional - * CPU features that are not yet unlocked in the "qemu" model. + * it represents the "host" model. Under TCG it represents the "qemu" CPU + * model of the latest QEMU machine. */ xcc->desc = "Enables all features supported by the accelerator in the current host"; @@ -1297,6 +967,8 @@ static void init_ignored_base_feat(void) S390_FEAT_KM_TDEA_192, S390_FEAT_KIMD_SHA_1, S390_FEAT_KLMD_SHA_1, + /* CSSKE is deprecated on newer generations */ + S390_FEAT_CONDITIONAL_SSKE, }; int i; @@ -1307,18 +979,13 @@ static void init_ignored_base_feat(void) static void register_types(void) { - static const S390FeatInit qemu_latest_init = { S390_FEAT_LIST_QEMU_LATEST }; + static const S390FeatInit qemu_max_init = { S390_FEAT_LIST_QEMU_MAX }; int i; init_ignored_base_feat(); - /* init all bitmaps from gnerated data initially */ - s390_init_feat_bitmap(qemu_max_cpu_feat_init, qemu_max_cpu_feat); -#ifndef CONFIG_USER_ONLY - if (!pci_available) { - clear_bit(S390_FEAT_ZPCI, qemu_max_cpu_feat); - } -#endif + /* init all bitmaps from generated data initially */ + s390_init_feat_bitmap(qemu_max_init, qemu_max_cpu_feat); 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); @@ -1328,9 +995,9 @@ static void register_types(void) s390_cpu_defs[i].full_feat); } - /* initialize the qemu model with latest definition */ + /* initialize the qemu model with the maximum definition ("max" model) */ s390_set_qemu_cpu_model(QEMU_MAX_CPU_TYPE, QEMU_MAX_CPU_GEN, - QEMU_MAX_CPU_EC_GA, qemu_latest_init); + QEMU_MAX_CPU_EC_GA, qemu_max_init); for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { char *base_name = s390_base_cpu_type_name(s390_cpu_defs[i].name); |