4 * Copyright 2016 IBM Corp.
6 * Author(s): David Hildenbrand <dahi@linux.vnet.ibm.com>
8 * This work is licensed under the terms of the GNU GPL, version 2 or (at
9 * your option) any later version. See the COPYING file in the top-level
13 #include "qemu/osdep.h"
16 #include "kvm_s390x.h"
17 #include "sysemu/kvm.h"
18 #include "sysemu/tcg.h"
19 #include "qapi/error.h"
20 #include "qapi/visitor.h"
21 #include "qemu/error-report.h"
22 #include "qemu/module.h"
23 #include "qemu/qemu-print.h"
24 #include "qapi/qmp/qerror.h"
25 #include "qapi/qobject-input-visitor.h"
26 #include "qapi/qmp/qdict.h"
27 #ifndef CONFIG_USER_ONLY
28 #include "sysemu/arch_init.h"
29 #include "sysemu/sysemu.h"
30 #include "hw/pci/pci.h"
32 #include "qapi/qapi-commands-machine-target.h"
33 #include "hw/s390x/pv.h"
35 #define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \
41 .mha_pow = _mha_pow, \
44 .base_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _BASE }, \
45 .default_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _DEFAULT }, \
46 .full_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _FULL }, \
50 * CPU definition list in order of release. Up to generation 14 base features
51 * of a following release have been a superset of the previous release. With
52 * generation 15 one base feature and one optional feature have been deprecated.
54 static S390CPUDef s390_cpu_defs
[] = {
55 CPUDEF_INIT(0x2064, 7, 1, 38, 0x00000000U
, "z900", "IBM zSeries 900 GA1"),
56 CPUDEF_INIT(0x2064, 7, 2, 38, 0x00000000U
, "z900.2", "IBM zSeries 900 GA2"),
57 CPUDEF_INIT(0x2064, 7, 3, 38, 0x00000000U
, "z900.3", "IBM zSeries 900 GA3"),
58 CPUDEF_INIT(0x2066, 7, 3, 38, 0x00000000U
, "z800", "IBM zSeries 800 GA1"),
59 CPUDEF_INIT(0x2084, 8, 1, 38, 0x00000000U
, "z990", "IBM zSeries 990 GA1"),
60 CPUDEF_INIT(0x2084, 8, 2, 38, 0x00000000U
, "z990.2", "IBM zSeries 990 GA2"),
61 CPUDEF_INIT(0x2084, 8, 3, 38, 0x00000000U
, "z990.3", "IBM zSeries 990 GA3"),
62 CPUDEF_INIT(0x2086, 8, 3, 38, 0x00000000U
, "z890", "IBM zSeries 880 GA1"),
63 CPUDEF_INIT(0x2084, 8, 4, 38, 0x00000000U
, "z990.4", "IBM zSeries 990 GA4"),
64 CPUDEF_INIT(0x2086, 8, 4, 38, 0x00000000U
, "z890.2", "IBM zSeries 880 GA2"),
65 CPUDEF_INIT(0x2084, 8, 5, 38, 0x00000000U
, "z990.5", "IBM zSeries 990 GA5"),
66 CPUDEF_INIT(0x2086, 8, 5, 38, 0x00000000U
, "z890.3", "IBM zSeries 880 GA3"),
67 CPUDEF_INIT(0x2094, 9, 1, 40, 0x00000000U
, "z9EC", "IBM System z9 EC GA1"),
68 CPUDEF_INIT(0x2094, 9, 2, 40, 0x00000000U
, "z9EC.2", "IBM System z9 EC GA2"),
69 CPUDEF_INIT(0x2096, 9, 2, 40, 0x00000000U
, "z9BC", "IBM System z9 BC GA1"),
70 CPUDEF_INIT(0x2094, 9, 3, 40, 0x00000000U
, "z9EC.3", "IBM System z9 EC GA3"),
71 CPUDEF_INIT(0x2096, 9, 3, 40, 0x00000000U
, "z9BC.2", "IBM System z9 BC GA2"),
72 CPUDEF_INIT(0x2097, 10, 1, 43, 0x00000000U
, "z10EC", "IBM System z10 EC GA1"),
73 CPUDEF_INIT(0x2097, 10, 2, 43, 0x00000000U
, "z10EC.2", "IBM System z10 EC GA2"),
74 CPUDEF_INIT(0x2098, 10, 2, 43, 0x00000000U
, "z10BC", "IBM System z10 BC GA1"),
75 CPUDEF_INIT(0x2097, 10, 3, 43, 0x00000000U
, "z10EC.3", "IBM System z10 EC GA3"),
76 CPUDEF_INIT(0x2098, 10, 3, 43, 0x00000000U
, "z10BC.2", "IBM System z10 BC GA2"),
77 CPUDEF_INIT(0x2817, 11, 1, 44, 0x08000000U
, "z196", "IBM zEnterprise 196 GA1"),
78 CPUDEF_INIT(0x2817, 11, 2, 44, 0x08000000U
, "z196.2", "IBM zEnterprise 196 GA2"),
79 CPUDEF_INIT(0x2818, 11, 2, 44, 0x08000000U
, "z114", "IBM zEnterprise 114 GA1"),
80 CPUDEF_INIT(0x2827, 12, 1, 44, 0x08000000U
, "zEC12", "IBM zEnterprise EC12 GA1"),
81 CPUDEF_INIT(0x2827, 12, 2, 44, 0x08000000U
, "zEC12.2", "IBM zEnterprise EC12 GA2"),
82 CPUDEF_INIT(0x2828, 12, 2, 44, 0x08000000U
, "zBC12", "IBM zEnterprise BC12 GA1"),
83 CPUDEF_INIT(0x2964, 13, 1, 47, 0x08000000U
, "z13", "IBM z13 GA1"),
84 CPUDEF_INIT(0x2964, 13, 2, 47, 0x08000000U
, "z13.2", "IBM z13 GA2"),
85 CPUDEF_INIT(0x2965, 13, 2, 47, 0x08000000U
, "z13s", "IBM z13s GA1"),
86 CPUDEF_INIT(0x3906, 14, 1, 47, 0x08000000U
, "z14", "IBM z14 GA1"),
87 CPUDEF_INIT(0x3906, 14, 2, 47, 0x08000000U
, "z14.2", "IBM z14 GA2"),
88 CPUDEF_INIT(0x3907, 14, 1, 47, 0x08000000U
, "z14ZR1", "IBM z14 Model ZR1 GA1"),
89 CPUDEF_INIT(0x8561, 15, 1, 47, 0x08000000U
, "gen15a", "IBM z15 T01 GA1"),
90 CPUDEF_INIT(0x8562, 15, 1, 47, 0x08000000U
, "gen15b", "IBM z15 T02 GA1"),
91 CPUDEF_INIT(0x3931, 16, 1, 47, 0x08000000U
, "gen16a", "IBM 3931 GA1"),
92 CPUDEF_INIT(0x3932, 16, 1, 47, 0x08000000U
, "gen16b", "IBM 3932 GA1"),
95 #define QEMU_MAX_CPU_TYPE 0x3906
96 #define QEMU_MAX_CPU_GEN 14
97 #define QEMU_MAX_CPU_EC_GA 2
98 static const S390FeatInit qemu_max_cpu_feat_init
= { S390_FEAT_LIST_QEMU_MAX
};
99 static S390FeatBitmap qemu_max_cpu_feat
;
101 /* features part of a base model but not relevant for finding a base model */
102 S390FeatBitmap ignored_base_feat
;
104 void s390_cpudef_featoff(uint8_t gen
, uint8_t ec_ga
, S390Feat feat
)
106 const S390CPUDef
*def
;
108 def
= s390_find_cpu_def(0, gen
, ec_ga
, NULL
);
109 clear_bit(feat
, (unsigned long *)&def
->default_feat
);
112 void s390_cpudef_featoff_greater(uint8_t gen
, uint8_t ec_ga
, S390Feat feat
)
116 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
117 const S390CPUDef
*def
= &s390_cpu_defs
[i
];
119 if (def
->gen
< gen
) {
122 if (def
->gen
== gen
&& def
->ec_ga
< ec_ga
) {
126 clear_bit(feat
, (unsigned long *)&def
->default_feat
);
130 void s390_cpudef_group_featoff_greater(uint8_t gen
, uint8_t ec_ga
,
133 const S390FeatGroupDef
*group_def
= s390_feat_group_def(group
);
134 S390FeatBitmap group_def_off
;
137 bitmap_complement(group_def_off
, group_def
->feat
, S390_FEAT_MAX
);
139 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
140 const S390CPUDef
*cpu_def
= &s390_cpu_defs
[i
];
142 if (cpu_def
->gen
< gen
) {
145 if (cpu_def
->gen
== gen
&& cpu_def
->ec_ga
< ec_ga
) {
149 bitmap_and((unsigned long *)&cpu_def
->default_feat
,
150 cpu_def
->default_feat
, group_def_off
, S390_FEAT_MAX
);
154 uint32_t s390_get_hmfai(void)
159 cpu
= S390_CPU(qemu_get_cpu(0));
162 if (!cpu
|| !cpu
->model
) {
165 return cpu
->model
->def
->hmfai
;
168 uint8_t s390_get_mha_pow(void)
173 cpu
= S390_CPU(qemu_get_cpu(0));
176 if (!cpu
|| !cpu
->model
) {
179 return cpu
->model
->def
->mha_pow
;
182 uint32_t s390_get_ibc_val(void)
184 uint16_t unblocked_ibc
, lowest_ibc
;
188 cpu
= S390_CPU(qemu_get_cpu(0));
191 if (!cpu
|| !cpu
->model
) {
194 unblocked_ibc
= s390_ibc_from_cpu_model(cpu
->model
);
195 lowest_ibc
= cpu
->model
->lowest_ibc
;
196 /* the lowest_ibc always has to be <= unblocked_ibc */
197 if (!lowest_ibc
|| lowest_ibc
> unblocked_ibc
) {
200 return ((uint32_t) lowest_ibc
<< 16) | unblocked_ibc
;
203 void s390_get_feat_block(S390FeatType type
, uint8_t *data
)
208 cpu
= S390_CPU(qemu_get_cpu(0));
211 if (!cpu
|| !cpu
->model
) {
214 s390_fill_feat_block(cpu
->model
->features
, type
, data
);
217 bool s390_has_feat(S390Feat feat
)
222 cpu
= S390_CPU(qemu_get_cpu(0));
225 if (!cpu
|| !cpu
->model
) {
228 if (feat
== S390_FEAT_VECTOR
) {
229 return kvm_check_extension(kvm_state
,
230 KVM_CAP_S390_VECTOR_REGISTERS
);
232 if (feat
== S390_FEAT_RUNTIME_INSTRUMENTATION
) {
233 return kvm_s390_get_ri();
235 if (feat
== S390_FEAT_MSA_EXT_3
) {
240 if (feat
== S390_FEAT_ZPCI
) {
248 case S390_FEAT_DIAG_318
:
249 case S390_FEAT_HPMA2
:
250 case S390_FEAT_SIE_F2
:
251 case S390_FEAT_SIE_SKEY
:
252 case S390_FEAT_SIE_GPERE
:
253 case S390_FEAT_SIE_SIIF
:
254 case S390_FEAT_SIE_SIGPIF
:
255 case S390_FEAT_SIE_IB
:
256 case S390_FEAT_SIE_CEI
:
257 case S390_FEAT_SIE_KSS
:
258 case S390_FEAT_SIE_GSLS
:
259 case S390_FEAT_SIE_64BSCAO
:
260 case S390_FEAT_SIE_CMMA
:
261 case S390_FEAT_SIE_PFMFI
:
262 case S390_FEAT_SIE_IBS
:
269 return test_bit(feat
, cpu
->model
->features
);
272 uint8_t s390_get_gen_for_cpu_type(uint16_t type
)
276 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
277 if (s390_cpu_defs
[i
].type
== type
) {
278 return s390_cpu_defs
[i
].gen
;
284 const S390CPUDef
*s390_find_cpu_def(uint16_t type
, uint8_t gen
, uint8_t ec_ga
,
285 S390FeatBitmap features
)
287 const S390CPUDef
*last_compatible
= NULL
;
288 const S390CPUDef
*matching_cpu_type
= NULL
;
295 gen
= s390_get_gen_for_cpu_type(type
);
298 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
299 const S390CPUDef
*def
= &s390_cpu_defs
[i
];
300 S390FeatBitmap missing
;
302 /* don't even try newer generations if we know the generation */
304 if (def
->gen
> gen
) {
306 } else if (def
->gen
== gen
&& ec_ga
&& def
->ec_ga
> ec_ga
) {
312 /* see if the model satisfies the minimum features */
313 bitmap_andnot(missing
, def
->base_feat
, features
, S390_FEAT_MAX
);
315 * Ignore certain features that are in the base model, but not
316 * relevant for the search (esp. MSA subfunctions).
318 bitmap_andnot(missing
, missing
, ignored_base_feat
, S390_FEAT_MAX
);
319 if (!bitmap_empty(missing
, S390_FEAT_MAX
)) {
324 /* stop the search if we found the exact model */
325 if (def
->type
== type
&& def
->ec_ga
== ec_ga
) {
328 /* remember if we've at least seen one with the same cpu type */
329 if (def
->type
== type
) {
330 matching_cpu_type
= def
;
332 last_compatible
= def
;
334 /* prefer the model with the same cpu type, esp. don't take the BC for EC */
335 if (matching_cpu_type
) {
336 return matching_cpu_type
;
338 return last_compatible
;
341 static void s390_print_cpu_model_list_entry(gpointer data
, gpointer user_data
)
343 const S390CPUClass
*scc
= S390_CPU_CLASS((ObjectClass
*)data
);
344 char *name
= g_strdup(object_class_get_name((ObjectClass
*)data
));
345 const char *details
= "";
347 if (scc
->is_static
) {
348 details
= "(static, migration-safe)";
349 } else if (scc
->is_migration_safe
) {
350 details
= "(migration-safe)";
353 /* strip off the -s390x-cpu */
354 g_strrstr(name
, "-" TYPE_S390_CPU
)[0] = 0;
355 qemu_printf("s390 %-15s %-35s %s\n", name
, scc
->desc
, details
);
359 static gint
s390_cpu_list_compare(gconstpointer a
, gconstpointer b
)
361 const S390CPUClass
*cc_a
= S390_CPU_CLASS((ObjectClass
*)a
);
362 const S390CPUClass
*cc_b
= S390_CPU_CLASS((ObjectClass
*)b
);
363 const char *name_a
= object_class_get_name((ObjectClass
*)a
);
364 const char *name_b
= object_class_get_name((ObjectClass
*)b
);
367 * Move qemu, host and max to the top of the list, qemu first, host second,
370 if (name_a
[0] == 'q') {
372 } else if (name_b
[0] == 'q') {
374 } else if (name_a
[0] == 'h') {
376 } else if (name_b
[0] == 'h') {
378 } else if (name_a
[0] == 'm') {
380 } else if (name_b
[0] == 'm') {
384 /* keep the same order we have in our table (sorted by release date) */
385 if (cc_a
->cpu_def
!= cc_b
->cpu_def
) {
386 return cc_a
->cpu_def
- cc_b
->cpu_def
;
389 /* exact same definition - list base model first */
390 return cc_a
->is_static
? -1 : 1;
393 void s390_cpu_list(void)
399 list
= object_class_get_list(TYPE_S390_CPU
, false);
400 list
= g_slist_sort(list
, s390_cpu_list_compare
);
401 g_slist_foreach(list
, s390_print_cpu_model_list_entry
, NULL
);
404 qemu_printf("\nRecognized feature flags:\n");
405 for (feat
= 0; feat
< S390_FEAT_MAX
; feat
++) {
406 const S390FeatDef
*def
= s390_feat_def(feat
);
408 qemu_printf("%-20s %-50s\n", def
->name
, def
->desc
);
411 qemu_printf("\nRecognized feature groups:\n");
412 for (group
= 0; group
< S390_FEAT_GROUP_MAX
; group
++) {
413 const S390FeatGroupDef
*def
= s390_feat_group_def(group
);
415 qemu_printf("%-20s %-50s\n", def
->name
, def
->desc
);
419 static S390CPUModel
*get_max_cpu_model(Error
**errp
);
421 #ifndef CONFIG_USER_ONLY
422 static void list_add_feat(const char *name
, void *opaque
);
424 static void check_unavailable_features(const S390CPUModel
*max_model
,
425 const S390CPUModel
*model
,
426 strList
**unavailable
)
428 S390FeatBitmap missing
;
430 /* check general model compatibility */
431 if (max_model
->def
->gen
< model
->def
->gen
||
432 (max_model
->def
->gen
== model
->def
->gen
&&
433 max_model
->def
->ec_ga
< model
->def
->ec_ga
)) {
434 list_add_feat("type", unavailable
);
437 /* detect missing features if any to properly report them */
438 bitmap_andnot(missing
, model
->features
, max_model
->features
,
440 if (!bitmap_empty(missing
, S390_FEAT_MAX
)) {
441 s390_feat_bitmap_to_ascii(missing
, unavailable
, list_add_feat
);
445 struct CpuDefinitionInfoListData
{
446 CpuDefinitionInfoList
*list
;
450 static void create_cpu_model_list(ObjectClass
*klass
, void *opaque
)
452 struct CpuDefinitionInfoListData
*cpu_list_data
= opaque
;
453 CpuDefinitionInfoList
**cpu_list
= &cpu_list_data
->list
;
454 CpuDefinitionInfo
*info
;
455 char *name
= g_strdup(object_class_get_name(klass
));
456 S390CPUClass
*scc
= S390_CPU_CLASS(klass
);
458 /* strip off the -s390x-cpu */
459 g_strrstr(name
, "-" TYPE_S390_CPU
)[0] = 0;
460 info
= g_new0(CpuDefinitionInfo
, 1);
462 info
->has_migration_safe
= true;
463 info
->migration_safe
= scc
->is_migration_safe
;
464 info
->q_static
= scc
->is_static
;
465 info
->q_typename
= g_strdup(object_class_get_name(klass
));
466 /* check for unavailable features */
467 if (cpu_list_data
->model
) {
470 obj
= object_new_with_class(klass
);
473 info
->has_unavailable_features
= true;
474 check_unavailable_features(cpu_list_data
->model
, sc
->model
,
475 &info
->unavailable_features
);
480 QAPI_LIST_PREPEND(*cpu_list
, info
);
483 CpuDefinitionInfoList
*qmp_query_cpu_definitions(Error
**errp
)
485 struct CpuDefinitionInfoListData list_data
= {
489 list_data
.model
= get_max_cpu_model(NULL
);
491 object_class_foreach(create_cpu_model_list
, TYPE_S390_CPU
, false,
494 return list_data
.list
;
497 static void cpu_model_from_info(S390CPUModel
*model
, const CpuModelInfo
*info
,
501 const QDict
*qdict
= NULL
;
509 qdict
= qobject_to(QDict
, info
->props
);
511 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, "props", "dict");
516 oc
= cpu_class_by_name(TYPE_S390_CPU
, info
->name
);
518 error_setg(errp
, "The CPU definition \'%s\' is unknown.", info
->name
);
521 if (S390_CPU_CLASS(oc
)->kvm_required
&& !kvm_enabled()) {
522 error_setg(errp
, "The CPU definition '%s' requires KVM", info
->name
);
525 obj
= object_new_with_class(oc
);
529 error_setg(errp
, "Details about the host CPU model are not available, "
530 "it cannot be used.");
536 visitor
= qobject_input_visitor_new(info
->props
);
537 if (!visit_start_struct(visitor
, NULL
, NULL
, 0, errp
)) {
542 for (e
= qdict_first(qdict
); e
; e
= qdict_next(qdict
, e
)) {
543 if (!object_property_set(obj
, e
->key
, visitor
, &err
)) {
548 visit_check_struct(visitor
, &err
);
550 visit_end_struct(visitor
, NULL
);
553 error_propagate(errp
, err
);
559 /* copy the model and throw the cpu away */
560 memcpy(model
, cpu
->model
, sizeof(*model
));
564 static void qdict_add_disabled_feat(const char *name
, void *opaque
)
566 qdict_put_bool(opaque
, name
, false);
569 static void qdict_add_enabled_feat(const char *name
, void *opaque
)
571 qdict_put_bool(opaque
, name
, true);
574 /* convert S390CPUDef into a static CpuModelInfo */
575 static void cpu_info_from_model(CpuModelInfo
*info
, const S390CPUModel
*model
,
578 QDict
*qdict
= qdict_new();
579 S390FeatBitmap bitmap
;
581 /* always fallback to the static base model */
582 info
->name
= g_strdup_printf("%s-base", model
->def
->name
);
585 /* features deleted from the base feature set */
586 bitmap_andnot(bitmap
, model
->def
->base_feat
, model
->features
,
588 if (!bitmap_empty(bitmap
, S390_FEAT_MAX
)) {
589 s390_feat_bitmap_to_ascii(bitmap
, qdict
, qdict_add_disabled_feat
);
592 /* features added to the base feature set */
593 bitmap_andnot(bitmap
, model
->features
, model
->def
->base_feat
,
595 if (!bitmap_empty(bitmap
, S390_FEAT_MAX
)) {
596 s390_feat_bitmap_to_ascii(bitmap
, qdict
, qdict_add_enabled_feat
);
599 /* expand all features */
600 s390_feat_bitmap_to_ascii(model
->features
, qdict
,
601 qdict_add_enabled_feat
);
602 bitmap_complement(bitmap
, model
->features
, S390_FEAT_MAX
);
603 s390_feat_bitmap_to_ascii(bitmap
, qdict
, qdict_add_disabled_feat
);
606 if (!qdict_size(qdict
)) {
607 qobject_unref(qdict
);
609 info
->props
= QOBJECT(qdict
);
610 info
->has_props
= true;
614 CpuModelExpansionInfo
*qmp_query_cpu_model_expansion(CpuModelExpansionType type
,
619 CpuModelExpansionInfo
*expansion_info
= NULL
;
620 S390CPUModel s390_model
;
621 bool delta_changes
= false;
623 /* convert it to our internal representation */
624 cpu_model_from_info(&s390_model
, model
, &err
);
626 error_propagate(errp
, err
);
630 if (type
== CPU_MODEL_EXPANSION_TYPE_STATIC
) {
631 delta_changes
= true;
632 } else if (type
!= CPU_MODEL_EXPANSION_TYPE_FULL
) {
633 error_setg(errp
, "The requested expansion type is not supported.");
637 /* convert it back to a static representation */
638 expansion_info
= g_new0(CpuModelExpansionInfo
, 1);
639 expansion_info
->model
= g_malloc0(sizeof(*expansion_info
->model
));
640 cpu_info_from_model(expansion_info
->model
, &s390_model
, delta_changes
);
641 return expansion_info
;
644 static void list_add_feat(const char *name
, void *opaque
)
646 strList
**last
= (strList
**) opaque
;
648 QAPI_LIST_PREPEND(*last
, g_strdup(name
));
651 CpuModelCompareInfo
*qmp_query_cpu_model_comparison(CpuModelInfo
*infoa
,
656 CpuModelCompareResult feat_result
, gen_result
;
657 CpuModelCompareInfo
*compare_info
;
658 S390FeatBitmap missing
, added
;
659 S390CPUModel modela
, modelb
;
661 /* convert both models to our internal representation */
662 cpu_model_from_info(&modela
, infoa
, &err
);
664 error_propagate(errp
, err
);
667 cpu_model_from_info(&modelb
, infob
, &err
);
669 error_propagate(errp
, err
);
672 compare_info
= g_new0(CpuModelCompareInfo
, 1);
674 /* check the cpu generation and ga level */
675 if (modela
.def
->gen
== modelb
.def
->gen
) {
676 if (modela
.def
->ec_ga
== modelb
.def
->ec_ga
) {
677 /* ec and corresponding bc are identical */
678 gen_result
= CPU_MODEL_COMPARE_RESULT_IDENTICAL
;
679 } else if (modela
.def
->ec_ga
< modelb
.def
->ec_ga
) {
680 gen_result
= CPU_MODEL_COMPARE_RESULT_SUBSET
;
682 gen_result
= CPU_MODEL_COMPARE_RESULT_SUPERSET
;
684 } else if (modela
.def
->gen
< modelb
.def
->gen
) {
685 gen_result
= CPU_MODEL_COMPARE_RESULT_SUBSET
;
687 gen_result
= CPU_MODEL_COMPARE_RESULT_SUPERSET
;
689 if (gen_result
!= CPU_MODEL_COMPARE_RESULT_IDENTICAL
) {
690 /* both models cannot be made identical */
691 list_add_feat("type", &compare_info
->responsible_properties
);
694 /* check the feature set */
695 if (bitmap_equal(modela
.features
, modelb
.features
, S390_FEAT_MAX
)) {
696 feat_result
= CPU_MODEL_COMPARE_RESULT_IDENTICAL
;
698 bitmap_andnot(missing
, modela
.features
, modelb
.features
, S390_FEAT_MAX
);
699 s390_feat_bitmap_to_ascii(missing
,
700 &compare_info
->responsible_properties
,
702 bitmap_andnot(added
, modelb
.features
, modela
.features
, S390_FEAT_MAX
);
703 s390_feat_bitmap_to_ascii(added
, &compare_info
->responsible_properties
,
705 if (bitmap_empty(missing
, S390_FEAT_MAX
)) {
706 feat_result
= CPU_MODEL_COMPARE_RESULT_SUBSET
;
707 } else if (bitmap_empty(added
, S390_FEAT_MAX
)) {
708 feat_result
= CPU_MODEL_COMPARE_RESULT_SUPERSET
;
710 feat_result
= CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE
;
714 /* combine the results */
715 if (gen_result
== feat_result
) {
716 compare_info
->result
= gen_result
;
717 } else if (feat_result
== CPU_MODEL_COMPARE_RESULT_IDENTICAL
) {
718 compare_info
->result
= gen_result
;
719 } else if (gen_result
== CPU_MODEL_COMPARE_RESULT_IDENTICAL
) {
720 compare_info
->result
= feat_result
;
722 compare_info
->result
= CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE
;
727 CpuModelBaselineInfo
*qmp_query_cpu_model_baseline(CpuModelInfo
*infoa
,
732 CpuModelBaselineInfo
*baseline_info
;
733 S390CPUModel modela
, modelb
, model
;
738 /* convert both models to our internal representation */
739 cpu_model_from_info(&modela
, infoa
, &err
);
741 error_propagate(errp
, err
);
745 cpu_model_from_info(&modelb
, infob
, &err
);
747 error_propagate(errp
, err
);
751 /* features both models support */
752 bitmap_and(model
.features
, modela
.features
, modelb
.features
, S390_FEAT_MAX
);
754 /* detect the maximum model not regarding features */
755 if (modela
.def
->gen
== modelb
.def
->gen
) {
756 if (modela
.def
->type
== modelb
.def
->type
) {
757 cpu_type
= modela
.def
->type
;
761 max_gen
= modela
.def
->gen
;
762 max_gen_ga
= MIN(modela
.def
->ec_ga
, modelb
.def
->ec_ga
);
763 } else if (modela
.def
->gen
> modelb
.def
->gen
) {
764 cpu_type
= modelb
.def
->type
;
765 max_gen
= modelb
.def
->gen
;
766 max_gen_ga
= modelb
.def
->ec_ga
;
768 cpu_type
= modela
.def
->type
;
769 max_gen
= modela
.def
->gen
;
770 max_gen_ga
= modela
.def
->ec_ga
;
773 model
.def
= s390_find_cpu_def(cpu_type
, max_gen
, max_gen_ga
,
776 /* models without early base features (esan3) are bad */
778 error_setg(errp
, "No compatible CPU model could be created as"
779 " important base features are disabled");
783 /* strip off features not part of the max model */
784 bitmap_and(model
.features
, model
.features
, model
.def
->full_feat
,
787 baseline_info
= g_new0(CpuModelBaselineInfo
, 1);
788 baseline_info
->model
= g_malloc0(sizeof(*baseline_info
->model
));
789 cpu_info_from_model(baseline_info
->model
, &model
, true);
790 return baseline_info
;
794 static void check_consistency(const S390CPUModel
*model
)
796 static int dep
[][2] = {
797 { S390_FEAT_IPTE_RANGE
, S390_FEAT_DAT_ENH
},
798 { S390_FEAT_IDTE_SEGMENT
, S390_FEAT_DAT_ENH
},
799 { S390_FEAT_IDTE_REGION
, S390_FEAT_DAT_ENH
},
800 { S390_FEAT_IDTE_REGION
, S390_FEAT_IDTE_SEGMENT
},
801 { S390_FEAT_LOCAL_TLB_CLEARING
, S390_FEAT_DAT_ENH
},
802 { S390_FEAT_LONG_DISPLACEMENT_FAST
, S390_FEAT_LONG_DISPLACEMENT
},
803 { S390_FEAT_DFP_FAST
, S390_FEAT_DFP
},
804 { S390_FEAT_TRANSACTIONAL_EXE
, S390_FEAT_STFLE_49
},
805 { S390_FEAT_EDAT_2
, S390_FEAT_EDAT
},
806 { S390_FEAT_MSA_EXT_5
, S390_FEAT_KIMD_SHA_512
},
807 { S390_FEAT_MSA_EXT_5
, S390_FEAT_KLMD_SHA_512
},
808 { S390_FEAT_MSA_EXT_4
, S390_FEAT_MSA_EXT_3
},
809 { S390_FEAT_SIE_CMMA
, S390_FEAT_CMM
},
810 { S390_FEAT_SIE_CMMA
, S390_FEAT_SIE_GSLS
},
811 { S390_FEAT_SIE_PFMFI
, S390_FEAT_EDAT
},
812 { S390_FEAT_MSA_EXT_8
, S390_FEAT_MSA_EXT_3
},
813 { S390_FEAT_MSA_EXT_9
, S390_FEAT_MSA_EXT_3
},
814 { S390_FEAT_MSA_EXT_9
, S390_FEAT_MSA_EXT_4
},
815 { S390_FEAT_MULTIPLE_EPOCH
, S390_FEAT_TOD_CLOCK_STEERING
},
816 { S390_FEAT_VECTOR_PACKED_DECIMAL
, S390_FEAT_VECTOR
},
817 { S390_FEAT_VECTOR_PACKED_DECIMAL_ENH
, S390_FEAT_VECTOR_PACKED_DECIMAL
},
818 { S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2
, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH
},
819 { S390_FEAT_VECTOR_ENH
, S390_FEAT_VECTOR
},
820 { S390_FEAT_INSTRUCTION_EXEC_PROT
, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2
},
821 { S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2
, S390_FEAT_ESOP
},
822 { S390_FEAT_CMM_NT
, S390_FEAT_CMM
},
823 { S390_FEAT_GUARDED_STORAGE
, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2
},
824 { S390_FEAT_MULTIPLE_EPOCH
, S390_FEAT_STORE_CLOCK_FAST
},
825 { S390_FEAT_MULTIPLE_EPOCH
, S390_FEAT_TOD_CLOCK_STEERING
},
826 { S390_FEAT_SEMAPHORE_ASSIST
, S390_FEAT_STFLE_49
},
827 { S390_FEAT_KIMD_SHA3_224
, S390_FEAT_MSA
},
828 { S390_FEAT_KIMD_SHA3_256
, S390_FEAT_MSA
},
829 { S390_FEAT_KIMD_SHA3_384
, S390_FEAT_MSA
},
830 { S390_FEAT_KIMD_SHA3_512
, S390_FEAT_MSA
},
831 { S390_FEAT_KIMD_SHAKE_128
, S390_FEAT_MSA
},
832 { S390_FEAT_KIMD_SHAKE_256
, S390_FEAT_MSA
},
833 { S390_FEAT_KLMD_SHA3_224
, S390_FEAT_MSA
},
834 { S390_FEAT_KLMD_SHA3_256
, S390_FEAT_MSA
},
835 { S390_FEAT_KLMD_SHA3_384
, S390_FEAT_MSA
},
836 { S390_FEAT_KLMD_SHA3_512
, S390_FEAT_MSA
},
837 { S390_FEAT_KLMD_SHAKE_128
, S390_FEAT_MSA
},
838 { S390_FEAT_KLMD_SHAKE_256
, S390_FEAT_MSA
},
839 { S390_FEAT_PRNO_TRNG_QRTCR
, S390_FEAT_MSA_EXT_5
},
840 { S390_FEAT_PRNO_TRNG
, S390_FEAT_MSA_EXT_5
},
841 { S390_FEAT_SIE_KSS
, S390_FEAT_SIE_F2
},
842 { S390_FEAT_AP_QUERY_CONFIG_INFO
, S390_FEAT_AP
},
843 { S390_FEAT_AP_FACILITIES_TEST
, S390_FEAT_AP
},
844 { S390_FEAT_PTFF_QSIE
, S390_FEAT_MULTIPLE_EPOCH
},
845 { S390_FEAT_PTFF_QTOUE
, S390_FEAT_MULTIPLE_EPOCH
},
846 { S390_FEAT_PTFF_STOE
, S390_FEAT_MULTIPLE_EPOCH
},
847 { S390_FEAT_PTFF_STOUE
, S390_FEAT_MULTIPLE_EPOCH
},
848 { S390_FEAT_AP_QUEUE_INTERRUPT_CONTROL
, S390_FEAT_AP
},
849 { S390_FEAT_DIAG_318
, S390_FEAT_EXTENDED_LENGTH_SCCB
},
850 { S390_FEAT_NNPA
, S390_FEAT_VECTOR
},
851 { S390_FEAT_RDP
, S390_FEAT_LOCAL_TLB_CLEARING
},
855 for (i
= 0; i
< ARRAY_SIZE(dep
); i
++) {
856 if (test_bit(dep
[i
][0], model
->features
) &&
857 !test_bit(dep
[i
][1], model
->features
)) {
858 warn_report("\'%s\' requires \'%s\'.",
859 s390_feat_def(dep
[i
][0])->name
,
860 s390_feat_def(dep
[i
][1])->name
);
865 static void error_prepend_missing_feat(const char *name
, void *opaque
)
867 error_prepend((Error
**) opaque
, "%s ", name
);
870 static void check_compatibility(const S390CPUModel
*max_model
,
871 const S390CPUModel
*model
, Error
**errp
)
873 S390FeatBitmap missing
;
875 if (model
->def
->gen
> max_model
->def
->gen
) {
876 error_setg(errp
, "Selected CPU generation is too new. Maximum "
877 "supported model in the configuration: \'%s\'",
878 max_model
->def
->name
);
880 } else if (model
->def
->gen
== max_model
->def
->gen
&&
881 model
->def
->ec_ga
> max_model
->def
->ec_ga
) {
882 error_setg(errp
, "Selected CPU GA level is too new. Maximum "
883 "supported model in the configuration: \'%s\'",
884 max_model
->def
->name
);
888 #ifndef CONFIG_USER_ONLY
889 if (only_migratable
&& test_bit(S390_FEAT_UNPACK
, model
->features
)) {
890 error_setg(errp
, "The unpack facility is not compatible with "
891 "the --only-migratable option. You must remove either "
892 "the 'unpack' facility or the --only-migratable option");
897 /* detect the missing features to properly report them */
898 bitmap_andnot(missing
, model
->features
, max_model
->features
, S390_FEAT_MAX
);
899 if (bitmap_empty(missing
, S390_FEAT_MAX
)) {
903 error_setg(errp
, " ");
904 s390_feat_bitmap_to_ascii(missing
, errp
, error_prepend_missing_feat
);
905 error_prepend(errp
, "Some features requested in the CPU model are not "
906 "available in the configuration: ");
909 static S390CPUModel
*get_max_cpu_model(Error
**errp
)
912 static S390CPUModel max_model
;
920 kvm_s390_get_host_cpu_model(&max_model
, &err
);
922 max_model
.def
= s390_find_cpu_def(QEMU_MAX_CPU_TYPE
, QEMU_MAX_CPU_GEN
,
923 QEMU_MAX_CPU_EC_GA
, NULL
);
924 bitmap_copy(max_model
.features
, qemu_max_cpu_feat
, S390_FEAT_MAX
);
927 error_propagate(errp
, err
);
934 static inline void apply_cpu_model(const S390CPUModel
*model
, Error
**errp
)
936 #ifndef CONFIG_USER_ONLY
938 static S390CPUModel applied_model
;
942 * We have the same model for all VCPUs. KVM can only be configured before
943 * any VCPUs are defined in KVM.
946 if (model
&& memcmp(&applied_model
, model
, sizeof(S390CPUModel
))) {
947 error_setg(errp
, "Mixed CPU models are not supported on s390x.");
953 kvm_s390_apply_cpu_model(model
, &err
);
955 error_propagate(errp
, err
);
962 applied_model
= *model
;
967 void s390_realize_cpu_model(CPUState
*cs
, Error
**errp
)
970 S390CPUClass
*xcc
= S390_CPU_GET_CLASS(cs
);
971 S390CPU
*cpu
= S390_CPU(cs
);
972 const S390CPUModel
*max_model
;
974 if (xcc
->kvm_required
&& !kvm_enabled()) {
975 error_setg(errp
, "CPU definition requires KVM");
980 /* no host model support -> perform compatibility stuff */
981 apply_cpu_model(NULL
, errp
);
985 max_model
= get_max_cpu_model(errp
);
987 error_prepend(errp
, "CPU models are not available: ");
991 /* copy over properties that can vary */
992 cpu
->model
->lowest_ibc
= max_model
->lowest_ibc
;
993 cpu
->model
->cpu_id
= max_model
->cpu_id
;
994 cpu
->model
->cpu_id_format
= max_model
->cpu_id_format
;
995 cpu
->model
->cpu_ver
= max_model
->cpu_ver
;
997 check_consistency(cpu
->model
);
998 check_compatibility(max_model
, cpu
->model
, &err
);
1000 error_propagate(errp
, err
);
1004 apply_cpu_model(cpu
->model
, errp
);
1006 #if !defined(CONFIG_USER_ONLY)
1007 cpu
->env
.cpuid
= s390_cpuid_from_cpu_model(cpu
->model
);
1008 if (tcg_enabled()) {
1009 /* basic mode, write the cpu address into the first 4 bit of the ID */
1010 cpu
->env
.cpuid
= deposit64(cpu
->env
.cpuid
, 54, 4, cpu
->env
.core_id
);
1015 static void get_feature(Object
*obj
, Visitor
*v
, const char *name
,
1016 void *opaque
, Error
**errp
)
1018 S390Feat feat
= (S390Feat
) (uintptr_t) opaque
;
1019 S390CPU
*cpu
= S390_CPU(obj
);
1023 error_setg(errp
, "Details about the host CPU model are not available, "
1024 "features cannot be queried.");
1028 value
= test_bit(feat
, cpu
->model
->features
);
1029 visit_type_bool(v
, name
, &value
, errp
);
1032 static void set_feature(Object
*obj
, Visitor
*v
, const char *name
,
1033 void *opaque
, Error
**errp
)
1035 S390Feat feat
= (S390Feat
) (uintptr_t) opaque
;
1036 DeviceState
*dev
= DEVICE(obj
);
1037 S390CPU
*cpu
= S390_CPU(obj
);
1040 if (dev
->realized
) {
1041 error_setg(errp
, "Attempt to set property '%s' on '%s' after "
1042 "it was realized", name
, object_get_typename(obj
));
1044 } else if (!cpu
->model
) {
1045 error_setg(errp
, "Details about the host CPU model are not available, "
1046 "features cannot be changed.");
1050 if (!visit_type_bool(v
, name
, &value
, errp
)) {
1054 if (!test_bit(feat
, cpu
->model
->def
->full_feat
)) {
1055 error_setg(errp
, "Feature '%s' is not available for CPU model '%s',"
1056 " it was introduced with later models.",
1057 name
, cpu
->model
->def
->name
);
1060 set_bit(feat
, cpu
->model
->features
);
1062 clear_bit(feat
, cpu
->model
->features
);
1066 static void get_feature_group(Object
*obj
, Visitor
*v
, const char *name
,
1067 void *opaque
, Error
**errp
)
1069 S390FeatGroup group
= (S390FeatGroup
) (uintptr_t) opaque
;
1070 const S390FeatGroupDef
*def
= s390_feat_group_def(group
);
1071 S390CPU
*cpu
= S390_CPU(obj
);
1076 error_setg(errp
, "Details about the host CPU model are not available, "
1077 "features cannot be queried.");
1081 /* a group is enabled if all features are enabled */
1082 bitmap_and(tmp
, cpu
->model
->features
, def
->feat
, S390_FEAT_MAX
);
1083 value
= bitmap_equal(tmp
, def
->feat
, S390_FEAT_MAX
);
1084 visit_type_bool(v
, name
, &value
, errp
);
1087 static void set_feature_group(Object
*obj
, Visitor
*v
, const char *name
,
1088 void *opaque
, Error
**errp
)
1090 S390FeatGroup group
= (S390FeatGroup
) (uintptr_t) opaque
;
1091 const S390FeatGroupDef
*def
= s390_feat_group_def(group
);
1092 DeviceState
*dev
= DEVICE(obj
);
1093 S390CPU
*cpu
= S390_CPU(obj
);
1096 if (dev
->realized
) {
1097 error_setg(errp
, "Attempt to set property '%s' on '%s' after "
1098 "it was realized", name
, object_get_typename(obj
));
1100 } else if (!cpu
->model
) {
1101 error_setg(errp
, "Details about the host CPU model are not available, "
1102 "features cannot be changed.");
1106 if (!visit_type_bool(v
, name
, &value
, errp
)) {
1110 /* groups are added in one shot, so an intersect is sufficient */
1111 if (!bitmap_intersects(def
->feat
, cpu
->model
->def
->full_feat
,
1113 error_setg(errp
, "Group '%s' is not available for CPU model '%s',"
1114 " it was introduced with later models.",
1115 name
, cpu
->model
->def
->name
);
1118 bitmap_or(cpu
->model
->features
, cpu
->model
->features
, def
->feat
,
1121 bitmap_andnot(cpu
->model
->features
, cpu
->model
->features
, def
->feat
,
1126 static void s390_cpu_model_initfn(Object
*obj
)
1128 S390CPU
*cpu
= S390_CPU(obj
);
1129 S390CPUClass
*xcc
= S390_CPU_GET_CLASS(cpu
);
1131 cpu
->model
= g_malloc0(sizeof(*cpu
->model
));
1132 /* copy the model, so we can modify it */
1133 cpu
->model
->def
= xcc
->cpu_def
;
1134 if (xcc
->is_static
) {
1135 /* base model - features will never change */
1136 bitmap_copy(cpu
->model
->features
, cpu
->model
->def
->base_feat
,
1139 /* latest model - features can change */
1140 bitmap_copy(cpu
->model
->features
,
1141 cpu
->model
->def
->default_feat
, S390_FEAT_MAX
);
1145 static S390CPUDef s390_qemu_cpu_def
;
1146 static S390CPUModel s390_qemu_cpu_model
;
1148 /* Set the qemu CPU model (on machine initialization). Must not be called
1149 * once CPUs have been created.
1151 void s390_set_qemu_cpu_model(uint16_t type
, uint8_t gen
, uint8_t ec_ga
,
1152 const S390FeatInit feat_init
)
1154 const S390CPUDef
*def
= s390_find_cpu_def(type
, gen
, ec_ga
, NULL
);
1157 g_assert(QTAILQ_EMPTY_RCU(&cpus
));
1159 /* TCG emulates some features that can usually not be enabled with
1160 * the emulated machine generation. Make sure they can be enabled
1161 * when using the QEMU model by adding them to full_feat. We have
1162 * to copy the definition to do that.
1164 memcpy(&s390_qemu_cpu_def
, def
, sizeof(s390_qemu_cpu_def
));
1165 bitmap_or(s390_qemu_cpu_def
.full_feat
, s390_qemu_cpu_def
.full_feat
,
1166 qemu_max_cpu_feat
, S390_FEAT_MAX
);
1168 /* build the CPU model */
1169 s390_qemu_cpu_model
.def
= &s390_qemu_cpu_def
;
1170 bitmap_zero(s390_qemu_cpu_model
.features
, S390_FEAT_MAX
);
1171 s390_init_feat_bitmap(feat_init
, s390_qemu_cpu_model
.features
);
1174 static void s390_qemu_cpu_model_initfn(Object
*obj
)
1176 S390CPU
*cpu
= S390_CPU(obj
);
1178 cpu
->model
= g_malloc0(sizeof(*cpu
->model
));
1179 /* copy the CPU model so we can modify it */
1180 memcpy(cpu
->model
, &s390_qemu_cpu_model
, sizeof(*cpu
->model
));
1183 static void s390_max_cpu_model_initfn(Object
*obj
)
1185 const S390CPUModel
*max_model
;
1186 S390CPU
*cpu
= S390_CPU(obj
);
1187 Error
*local_err
= NULL
;
1189 if (kvm_enabled() && !kvm_s390_cpu_models_supported()) {
1190 /* "max" and "host" always work, even without CPU model support */
1194 max_model
= get_max_cpu_model(&local_err
);
1196 /* we expect errors only under KVM, when actually querying the kernel */
1197 g_assert(kvm_enabled());
1198 error_report_err(local_err
);
1199 /* fallback to unsupported CPU models */
1203 cpu
->model
= g_new(S390CPUModel
, 1);
1204 /* copy the CPU model so we can modify it */
1205 memcpy(cpu
->model
, max_model
, sizeof(*cpu
->model
));
1208 static void s390_cpu_model_finalize(Object
*obj
)
1210 S390CPU
*cpu
= S390_CPU(obj
);
1216 static bool get_is_migration_safe(Object
*obj
, Error
**errp
)
1218 return S390_CPU_GET_CLASS(obj
)->is_migration_safe
;
1221 static bool get_is_static(Object
*obj
, Error
**errp
)
1223 return S390_CPU_GET_CLASS(obj
)->is_static
;
1226 static char *get_description(Object
*obj
, Error
**errp
)
1228 return g_strdup(S390_CPU_GET_CLASS(obj
)->desc
);
1231 void s390_cpu_model_class_register_props(ObjectClass
*oc
)
1233 S390FeatGroup group
;
1236 object_class_property_add_bool(oc
, "migration-safe", get_is_migration_safe
,
1238 object_class_property_add_bool(oc
, "static", get_is_static
,
1240 object_class_property_add_str(oc
, "description", get_description
, NULL
);
1242 for (feat
= 0; feat
< S390_FEAT_MAX
; feat
++) {
1243 const S390FeatDef
*def
= s390_feat_def(feat
);
1244 object_class_property_add(oc
, def
->name
, "bool", get_feature
,
1245 set_feature
, NULL
, (void *) feat
);
1246 object_class_property_set_description(oc
, def
->name
, def
->desc
);
1248 for (group
= 0; group
< S390_FEAT_GROUP_MAX
; group
++) {
1249 const S390FeatGroupDef
*def
= s390_feat_group_def(group
);
1250 object_class_property_add(oc
, def
->name
, "bool", get_feature_group
,
1251 set_feature_group
, NULL
, (void *) group
);
1252 object_class_property_set_description(oc
, def
->name
, def
->desc
);
1257 static void s390_host_cpu_model_class_init(ObjectClass
*oc
, void *data
)
1259 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
1261 xcc
->kvm_required
= true;
1262 xcc
->desc
= "KVM only: All recognized features";
1266 static void s390_base_cpu_model_class_init(ObjectClass
*oc
, void *data
)
1268 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
1270 /* all base models are migration safe */
1271 xcc
->cpu_def
= (const S390CPUDef
*) data
;
1272 xcc
->is_migration_safe
= true;
1273 xcc
->is_static
= true;
1274 xcc
->desc
= xcc
->cpu_def
->desc
;
1277 static void s390_cpu_model_class_init(ObjectClass
*oc
, void *data
)
1279 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
1281 /* model that can change between QEMU versions */
1282 xcc
->cpu_def
= (const S390CPUDef
*) data
;
1283 xcc
->is_migration_safe
= true;
1284 xcc
->desc
= xcc
->cpu_def
->desc
;
1287 static void s390_qemu_cpu_model_class_init(ObjectClass
*oc
, void *data
)
1289 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
1291 xcc
->is_migration_safe
= true;
1292 xcc
->desc
= g_strdup_printf("QEMU Virtual CPU version %s",
1296 static void s390_max_cpu_model_class_init(ObjectClass
*oc
, void *data
)
1298 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
1301 * The "max" model is neither static nor migration safe. Under KVM
1302 * it represents the "host" model. Under TCG it represents some kind of
1303 * "qemu" CPU model without compat handling and maybe with some additional
1304 * CPU features that are not yet unlocked in the "qemu" model.
1307 "Enables all features supported by the accelerator in the current host";
1310 /* Generate type name for a cpu model. Caller has to free the string. */
1311 static char *s390_cpu_type_name(const char *model_name
)
1313 return g_strdup_printf(S390_CPU_TYPE_NAME("%s"), model_name
);
1316 /* Generate type name for a base cpu model. Caller has to free the string. */
1317 static char *s390_base_cpu_type_name(const char *model_name
)
1319 return g_strdup_printf(S390_CPU_TYPE_NAME("%s-base"), model_name
);
1322 ObjectClass
*s390_cpu_class_by_name(const char *name
)
1324 char *typename
= s390_cpu_type_name(name
);
1327 oc
= object_class_by_name(typename
);
1332 static const TypeInfo qemu_s390_cpu_type_info
= {
1333 .name
= S390_CPU_TYPE_NAME("qemu"),
1334 .parent
= TYPE_S390_CPU
,
1335 .instance_init
= s390_qemu_cpu_model_initfn
,
1336 .instance_finalize
= s390_cpu_model_finalize
,
1337 .class_init
= s390_qemu_cpu_model_class_init
,
1340 static const TypeInfo max_s390_cpu_type_info
= {
1341 .name
= S390_CPU_TYPE_NAME("max"),
1342 .parent
= TYPE_S390_CPU
,
1343 .instance_init
= s390_max_cpu_model_initfn
,
1344 .instance_finalize
= s390_cpu_model_finalize
,
1345 .class_init
= s390_max_cpu_model_class_init
,
1349 static const TypeInfo host_s390_cpu_type_info
= {
1350 .name
= S390_CPU_TYPE_NAME("host"),
1351 .parent
= S390_CPU_TYPE_NAME("max"),
1352 .class_init
= s390_host_cpu_model_class_init
,
1356 static void init_ignored_base_feat(void)
1358 static const int feats
[] = {
1359 /* MSA subfunctions that could not be available on certain machines */
1361 S390_FEAT_KMAC_TDEA_128
,
1362 S390_FEAT_KMAC_TDEA_192
,
1364 S390_FEAT_KMC_TDEA_128
,
1365 S390_FEAT_KMC_TDEA_192
,
1367 S390_FEAT_KM_TDEA_128
,
1368 S390_FEAT_KM_TDEA_192
,
1369 S390_FEAT_KIMD_SHA_1
,
1370 S390_FEAT_KLMD_SHA_1
,
1371 /* CSSKE is deprecated on newer generations */
1372 S390_FEAT_CONDITIONAL_SSKE
,
1376 for (i
= 0; i
< ARRAY_SIZE(feats
); i
++) {
1377 set_bit(feats
[i
], ignored_base_feat
);
1381 static void register_types(void)
1383 static const S390FeatInit qemu_latest_init
= { S390_FEAT_LIST_QEMU_LATEST
};
1386 init_ignored_base_feat();
1388 /* init all bitmaps from gnerated data initially */
1389 s390_init_feat_bitmap(qemu_max_cpu_feat_init
, qemu_max_cpu_feat
);
1390 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
1391 s390_init_feat_bitmap(s390_cpu_defs
[i
].base_init
,
1392 s390_cpu_defs
[i
].base_feat
);
1393 s390_init_feat_bitmap(s390_cpu_defs
[i
].default_init
,
1394 s390_cpu_defs
[i
].default_feat
);
1395 s390_init_feat_bitmap(s390_cpu_defs
[i
].full_init
,
1396 s390_cpu_defs
[i
].full_feat
);
1399 /* initialize the qemu model with latest definition */
1400 s390_set_qemu_cpu_model(QEMU_MAX_CPU_TYPE
, QEMU_MAX_CPU_GEN
,
1401 QEMU_MAX_CPU_EC_GA
, qemu_latest_init
);
1403 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
1404 char *base_name
= s390_base_cpu_type_name(s390_cpu_defs
[i
].name
);
1405 TypeInfo ti_base
= {
1407 .parent
= TYPE_S390_CPU
,
1408 .instance_init
= s390_cpu_model_initfn
,
1409 .instance_finalize
= s390_cpu_model_finalize
,
1410 .class_init
= s390_base_cpu_model_class_init
,
1411 .class_data
= (void *) &s390_cpu_defs
[i
],
1413 char *name
= s390_cpu_type_name(s390_cpu_defs
[i
].name
);
1416 .parent
= TYPE_S390_CPU
,
1417 .instance_init
= s390_cpu_model_initfn
,
1418 .instance_finalize
= s390_cpu_model_finalize
,
1419 .class_init
= s390_cpu_model_class_init
,
1420 .class_data
= (void *) &s390_cpu_defs
[i
],
1423 type_register_static(&ti_base
);
1424 type_register_static(&ti
);
1429 type_register_static(&qemu_s390_cpu_type_info
);
1430 type_register_static(&max_s390_cpu_type_info
);
1432 type_register_static(&host_s390_cpu_type_info
);
1436 type_init(register_types
)