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"
15 #include "s390x-internal.h"
16 #include "kvm/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/module.h"
22 #include "qemu/qemu-print.h"
23 #ifndef CONFIG_USER_ONLY
24 #include "sysemu/sysemu.h"
26 #include "hw/s390x/pv.h"
28 #define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \
34 .mha_pow = _mha_pow, \
37 .base_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _BASE }, \
38 .default_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _DEFAULT }, \
39 .full_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _FULL }, \
43 * CPU definition list in order of release. Up to generation 14 base features
44 * of a following release have been a superset of the previous release. With
45 * generation 15 one base feature and one optional feature have been deprecated.
47 static S390CPUDef s390_cpu_defs
[] = {
48 CPUDEF_INIT(0x2064, 7, 1, 38, 0x00000000U
, "z900", "IBM zSeries 900 GA1"),
49 CPUDEF_INIT(0x2064, 7, 2, 38, 0x00000000U
, "z900.2", "IBM zSeries 900 GA2"),
50 CPUDEF_INIT(0x2064, 7, 3, 38, 0x00000000U
, "z900.3", "IBM zSeries 900 GA3"),
51 CPUDEF_INIT(0x2066, 7, 3, 38, 0x00000000U
, "z800", "IBM zSeries 800 GA1"),
52 CPUDEF_INIT(0x2084, 8, 1, 38, 0x00000000U
, "z990", "IBM zSeries 990 GA1"),
53 CPUDEF_INIT(0x2084, 8, 2, 38, 0x00000000U
, "z990.2", "IBM zSeries 990 GA2"),
54 CPUDEF_INIT(0x2084, 8, 3, 38, 0x00000000U
, "z990.3", "IBM zSeries 990 GA3"),
55 CPUDEF_INIT(0x2086, 8, 3, 38, 0x00000000U
, "z890", "IBM zSeries 880 GA1"),
56 CPUDEF_INIT(0x2084, 8, 4, 38, 0x00000000U
, "z990.4", "IBM zSeries 990 GA4"),
57 CPUDEF_INIT(0x2086, 8, 4, 38, 0x00000000U
, "z890.2", "IBM zSeries 880 GA2"),
58 CPUDEF_INIT(0x2084, 8, 5, 38, 0x00000000U
, "z990.5", "IBM zSeries 990 GA5"),
59 CPUDEF_INIT(0x2086, 8, 5, 38, 0x00000000U
, "z890.3", "IBM zSeries 880 GA3"),
60 CPUDEF_INIT(0x2094, 9, 1, 40, 0x00000000U
, "z9EC", "IBM System z9 EC GA1"),
61 CPUDEF_INIT(0x2094, 9, 2, 40, 0x00000000U
, "z9EC.2", "IBM System z9 EC GA2"),
62 CPUDEF_INIT(0x2096, 9, 2, 40, 0x00000000U
, "z9BC", "IBM System z9 BC GA1"),
63 CPUDEF_INIT(0x2094, 9, 3, 40, 0x00000000U
, "z9EC.3", "IBM System z9 EC GA3"),
64 CPUDEF_INIT(0x2096, 9, 3, 40, 0x00000000U
, "z9BC.2", "IBM System z9 BC GA2"),
65 CPUDEF_INIT(0x2097, 10, 1, 43, 0x00000000U
, "z10EC", "IBM System z10 EC GA1"),
66 CPUDEF_INIT(0x2097, 10, 2, 43, 0x00000000U
, "z10EC.2", "IBM System z10 EC GA2"),
67 CPUDEF_INIT(0x2098, 10, 2, 43, 0x00000000U
, "z10BC", "IBM System z10 BC GA1"),
68 CPUDEF_INIT(0x2097, 10, 3, 43, 0x00000000U
, "z10EC.3", "IBM System z10 EC GA3"),
69 CPUDEF_INIT(0x2098, 10, 3, 43, 0x00000000U
, "z10BC.2", "IBM System z10 BC GA2"),
70 CPUDEF_INIT(0x2817, 11, 1, 44, 0x08000000U
, "z196", "IBM zEnterprise 196 GA1"),
71 CPUDEF_INIT(0x2817, 11, 2, 44, 0x08000000U
, "z196.2", "IBM zEnterprise 196 GA2"),
72 CPUDEF_INIT(0x2818, 11, 2, 44, 0x08000000U
, "z114", "IBM zEnterprise 114 GA1"),
73 CPUDEF_INIT(0x2827, 12, 1, 44, 0x08000000U
, "zEC12", "IBM zEnterprise EC12 GA1"),
74 CPUDEF_INIT(0x2827, 12, 2, 44, 0x08000000U
, "zEC12.2", "IBM zEnterprise EC12 GA2"),
75 CPUDEF_INIT(0x2828, 12, 2, 44, 0x08000000U
, "zBC12", "IBM zEnterprise BC12 GA1"),
76 CPUDEF_INIT(0x2964, 13, 1, 47, 0x08000000U
, "z13", "IBM z13 GA1"),
77 CPUDEF_INIT(0x2964, 13, 2, 47, 0x08000000U
, "z13.2", "IBM z13 GA2"),
78 CPUDEF_INIT(0x2965, 13, 2, 47, 0x08000000U
, "z13s", "IBM z13s GA1"),
79 CPUDEF_INIT(0x3906, 14, 1, 47, 0x08000000U
, "z14", "IBM z14 GA1"),
80 CPUDEF_INIT(0x3906, 14, 2, 47, 0x08000000U
, "z14.2", "IBM z14 GA2"),
81 CPUDEF_INIT(0x3907, 14, 1, 47, 0x08000000U
, "z14ZR1", "IBM z14 Model ZR1 GA1"),
82 CPUDEF_INIT(0x8561, 15, 1, 47, 0x08000000U
, "gen15a", "IBM z15 T01 GA1"),
83 CPUDEF_INIT(0x8562, 15, 1, 47, 0x08000000U
, "gen15b", "IBM z15 T02 GA1"),
84 CPUDEF_INIT(0x3931, 16, 1, 47, 0x08000000U
, "gen16a", "IBM 3931 GA1"),
85 CPUDEF_INIT(0x3932, 16, 1, 47, 0x08000000U
, "gen16b", "IBM 3932 GA1"),
88 #define QEMU_MAX_CPU_TYPE 0x3906
89 #define QEMU_MAX_CPU_GEN 14
90 #define QEMU_MAX_CPU_EC_GA 2
91 static const S390FeatInit qemu_max_cpu_feat_init
= { S390_FEAT_LIST_QEMU_MAX
};
92 static S390FeatBitmap qemu_max_cpu_feat
;
94 /* features part of a base model but not relevant for finding a base model */
95 S390FeatBitmap ignored_base_feat
;
97 void s390_cpudef_featoff(uint8_t gen
, uint8_t ec_ga
, S390Feat feat
)
99 const S390CPUDef
*def
;
101 def
= s390_find_cpu_def(0, gen
, ec_ga
, NULL
);
102 clear_bit(feat
, (unsigned long *)&def
->default_feat
);
105 void s390_cpudef_featoff_greater(uint8_t gen
, uint8_t ec_ga
, S390Feat feat
)
109 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
110 const S390CPUDef
*def
= &s390_cpu_defs
[i
];
112 if (def
->gen
< gen
) {
115 if (def
->gen
== gen
&& def
->ec_ga
< ec_ga
) {
119 clear_bit(feat
, (unsigned long *)&def
->default_feat
);
123 void s390_cpudef_group_featoff_greater(uint8_t gen
, uint8_t ec_ga
,
126 const S390FeatGroupDef
*group_def
= s390_feat_group_def(group
);
127 S390FeatBitmap group_def_off
;
130 bitmap_complement(group_def_off
, group_def
->feat
, S390_FEAT_MAX
);
132 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
133 const S390CPUDef
*cpu_def
= &s390_cpu_defs
[i
];
135 if (cpu_def
->gen
< gen
) {
138 if (cpu_def
->gen
== gen
&& cpu_def
->ec_ga
< ec_ga
) {
142 bitmap_and((unsigned long *)&cpu_def
->default_feat
,
143 cpu_def
->default_feat
, group_def_off
, S390_FEAT_MAX
);
147 uint32_t s390_get_hmfai(void)
152 cpu
= S390_CPU(qemu_get_cpu(0));
155 if (!cpu
|| !cpu
->model
) {
158 return cpu
->model
->def
->hmfai
;
161 uint8_t s390_get_mha_pow(void)
166 cpu
= S390_CPU(qemu_get_cpu(0));
169 if (!cpu
|| !cpu
->model
) {
172 return cpu
->model
->def
->mha_pow
;
175 uint32_t s390_get_ibc_val(void)
177 uint16_t unblocked_ibc
, lowest_ibc
;
181 cpu
= S390_CPU(qemu_get_cpu(0));
184 if (!cpu
|| !cpu
->model
) {
187 unblocked_ibc
= s390_ibc_from_cpu_model(cpu
->model
);
188 lowest_ibc
= cpu
->model
->lowest_ibc
;
189 /* the lowest_ibc always has to be <= unblocked_ibc */
190 if (!lowest_ibc
|| lowest_ibc
> unblocked_ibc
) {
193 return ((uint32_t) lowest_ibc
<< 16) | unblocked_ibc
;
196 void s390_get_feat_block(S390FeatType type
, uint8_t *data
)
201 cpu
= S390_CPU(qemu_get_cpu(0));
204 if (!cpu
|| !cpu
->model
) {
207 s390_fill_feat_block(cpu
->model
->features
, type
, data
);
210 bool s390_has_feat(S390Feat feat
)
215 cpu
= S390_CPU(qemu_get_cpu(0));
218 if (!cpu
|| !cpu
->model
) {
221 if (feat
== S390_FEAT_VECTOR
) {
222 return kvm_check_extension(kvm_state
,
223 KVM_CAP_S390_VECTOR_REGISTERS
);
225 if (feat
== S390_FEAT_RUNTIME_INSTRUMENTATION
) {
226 return kvm_s390_get_ri();
228 if (feat
== S390_FEAT_MSA_EXT_3
) {
233 if (feat
== S390_FEAT_ZPCI
) {
241 case S390_FEAT_DIAG_318
:
242 case S390_FEAT_HPMA2
:
243 case S390_FEAT_SIE_F2
:
244 case S390_FEAT_SIE_SKEY
:
245 case S390_FEAT_SIE_GPERE
:
246 case S390_FEAT_SIE_SIIF
:
247 case S390_FEAT_SIE_SIGPIF
:
248 case S390_FEAT_SIE_IB
:
249 case S390_FEAT_SIE_CEI
:
250 case S390_FEAT_SIE_KSS
:
251 case S390_FEAT_SIE_GSLS
:
252 case S390_FEAT_SIE_64BSCAO
:
253 case S390_FEAT_SIE_CMMA
:
254 case S390_FEAT_SIE_PFMFI
:
255 case S390_FEAT_SIE_IBS
:
262 return test_bit(feat
, cpu
->model
->features
);
265 uint8_t s390_get_gen_for_cpu_type(uint16_t type
)
269 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
270 if (s390_cpu_defs
[i
].type
== type
) {
271 return s390_cpu_defs
[i
].gen
;
277 const S390CPUDef
*s390_find_cpu_def(uint16_t type
, uint8_t gen
, uint8_t ec_ga
,
278 S390FeatBitmap features
)
280 const S390CPUDef
*last_compatible
= NULL
;
281 const S390CPUDef
*matching_cpu_type
= NULL
;
288 gen
= s390_get_gen_for_cpu_type(type
);
291 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
292 const S390CPUDef
*def
= &s390_cpu_defs
[i
];
293 S390FeatBitmap missing
;
295 /* don't even try newer generations if we know the generation */
297 if (def
->gen
> gen
) {
299 } else if (def
->gen
== gen
&& ec_ga
&& def
->ec_ga
> ec_ga
) {
305 /* see if the model satisfies the minimum features */
306 bitmap_andnot(missing
, def
->base_feat
, features
, S390_FEAT_MAX
);
308 * Ignore certain features that are in the base model, but not
309 * relevant for the search (esp. MSA subfunctions).
311 bitmap_andnot(missing
, missing
, ignored_base_feat
, S390_FEAT_MAX
);
312 if (!bitmap_empty(missing
, S390_FEAT_MAX
)) {
317 /* stop the search if we found the exact model */
318 if (def
->type
== type
&& def
->ec_ga
== ec_ga
) {
321 /* remember if we've at least seen one with the same cpu type */
322 if (def
->type
== type
) {
323 matching_cpu_type
= def
;
325 last_compatible
= def
;
327 /* prefer the model with the same cpu type, esp. don't take the BC for EC */
328 if (matching_cpu_type
) {
329 return matching_cpu_type
;
331 return last_compatible
;
334 static void s390_print_cpu_model_list_entry(gpointer data
, gpointer user_data
)
336 const S390CPUClass
*scc
= S390_CPU_CLASS((ObjectClass
*)data
);
337 char *name
= g_strdup(object_class_get_name((ObjectClass
*)data
));
338 const char *details
= "";
340 if (scc
->is_static
) {
341 details
= "(static, migration-safe)";
342 } else if (scc
->is_migration_safe
) {
343 details
= "(migration-safe)";
346 /* strip off the -s390x-cpu */
347 g_strrstr(name
, "-" TYPE_S390_CPU
)[0] = 0;
348 qemu_printf("s390 %-15s %-35s %s\n", name
, scc
->desc
, details
);
352 static gint
s390_cpu_list_compare(gconstpointer a
, gconstpointer b
)
354 const S390CPUClass
*cc_a
= S390_CPU_CLASS((ObjectClass
*)a
);
355 const S390CPUClass
*cc_b
= S390_CPU_CLASS((ObjectClass
*)b
);
356 const char *name_a
= object_class_get_name((ObjectClass
*)a
);
357 const char *name_b
= object_class_get_name((ObjectClass
*)b
);
360 * Move qemu, host and max to the top of the list, qemu first, host second,
363 if (name_a
[0] == 'q') {
365 } else if (name_b
[0] == 'q') {
367 } else if (name_a
[0] == 'h') {
369 } else if (name_b
[0] == 'h') {
371 } else if (name_a
[0] == 'm') {
373 } else if (name_b
[0] == 'm') {
377 /* keep the same order we have in our table (sorted by release date) */
378 if (cc_a
->cpu_def
!= cc_b
->cpu_def
) {
379 return cc_a
->cpu_def
- cc_b
->cpu_def
;
382 /* exact same definition - list base model first */
383 return cc_a
->is_static
? -1 : 1;
386 void s390_cpu_list(void)
392 list
= object_class_get_list(TYPE_S390_CPU
, false);
393 list
= g_slist_sort(list
, s390_cpu_list_compare
);
394 g_slist_foreach(list
, s390_print_cpu_model_list_entry
, NULL
);
397 qemu_printf("\nRecognized feature flags:\n");
398 for (feat
= 0; feat
< S390_FEAT_MAX
; feat
++) {
399 const S390FeatDef
*def
= s390_feat_def(feat
);
401 qemu_printf("%-20s %-50s\n", def
->name
, def
->desc
);
404 qemu_printf("\nRecognized feature groups:\n");
405 for (group
= 0; group
< S390_FEAT_GROUP_MAX
; group
++) {
406 const S390FeatGroupDef
*def
= s390_feat_group_def(group
);
408 qemu_printf("%-20s %-50s\n", def
->name
, def
->desc
);
412 static void check_consistency(const S390CPUModel
*model
)
414 static int dep
[][2] = {
415 { S390_FEAT_IPTE_RANGE
, S390_FEAT_DAT_ENH
},
416 { S390_FEAT_IDTE_SEGMENT
, S390_FEAT_DAT_ENH
},
417 { S390_FEAT_IDTE_REGION
, S390_FEAT_DAT_ENH
},
418 { S390_FEAT_IDTE_REGION
, S390_FEAT_IDTE_SEGMENT
},
419 { S390_FEAT_LOCAL_TLB_CLEARING
, S390_FEAT_DAT_ENH
},
420 { S390_FEAT_LONG_DISPLACEMENT_FAST
, S390_FEAT_LONG_DISPLACEMENT
},
421 { S390_FEAT_DFP_FAST
, S390_FEAT_DFP
},
422 { S390_FEAT_TRANSACTIONAL_EXE
, S390_FEAT_STFLE_49
},
423 { S390_FEAT_EDAT_2
, S390_FEAT_EDAT
},
424 { S390_FEAT_MSA_EXT_5
, S390_FEAT_KIMD_SHA_512
},
425 { S390_FEAT_MSA_EXT_5
, S390_FEAT_KLMD_SHA_512
},
426 { S390_FEAT_MSA_EXT_4
, S390_FEAT_MSA_EXT_3
},
427 { S390_FEAT_SIE_CMMA
, S390_FEAT_CMM
},
428 { S390_FEAT_SIE_CMMA
, S390_FEAT_SIE_GSLS
},
429 { S390_FEAT_SIE_PFMFI
, S390_FEAT_EDAT
},
430 { S390_FEAT_MSA_EXT_8
, S390_FEAT_MSA_EXT_3
},
431 { S390_FEAT_MSA_EXT_9
, S390_FEAT_MSA_EXT_3
},
432 { S390_FEAT_MSA_EXT_9
, S390_FEAT_MSA_EXT_4
},
433 { S390_FEAT_MULTIPLE_EPOCH
, S390_FEAT_TOD_CLOCK_STEERING
},
434 { S390_FEAT_VECTOR_PACKED_DECIMAL
, S390_FEAT_VECTOR
},
435 { S390_FEAT_VECTOR_PACKED_DECIMAL_ENH
, S390_FEAT_VECTOR_PACKED_DECIMAL
},
436 { S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2
, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH
},
437 { S390_FEAT_VECTOR_ENH
, S390_FEAT_VECTOR
},
438 { S390_FEAT_INSTRUCTION_EXEC_PROT
, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2
},
439 { S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2
, S390_FEAT_ESOP
},
440 { S390_FEAT_CMM_NT
, S390_FEAT_CMM
},
441 { S390_FEAT_GUARDED_STORAGE
, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2
},
442 { S390_FEAT_MULTIPLE_EPOCH
, S390_FEAT_STORE_CLOCK_FAST
},
443 { S390_FEAT_MULTIPLE_EPOCH
, S390_FEAT_TOD_CLOCK_STEERING
},
444 { S390_FEAT_SEMAPHORE_ASSIST
, S390_FEAT_STFLE_49
},
445 { S390_FEAT_KIMD_SHA3_224
, S390_FEAT_MSA
},
446 { S390_FEAT_KIMD_SHA3_256
, S390_FEAT_MSA
},
447 { S390_FEAT_KIMD_SHA3_384
, S390_FEAT_MSA
},
448 { S390_FEAT_KIMD_SHA3_512
, S390_FEAT_MSA
},
449 { S390_FEAT_KIMD_SHAKE_128
, S390_FEAT_MSA
},
450 { S390_FEAT_KIMD_SHAKE_256
, S390_FEAT_MSA
},
451 { S390_FEAT_KLMD_SHA3_224
, S390_FEAT_MSA
},
452 { S390_FEAT_KLMD_SHA3_256
, S390_FEAT_MSA
},
453 { S390_FEAT_KLMD_SHA3_384
, S390_FEAT_MSA
},
454 { S390_FEAT_KLMD_SHA3_512
, S390_FEAT_MSA
},
455 { S390_FEAT_KLMD_SHAKE_128
, S390_FEAT_MSA
},
456 { S390_FEAT_KLMD_SHAKE_256
, S390_FEAT_MSA
},
457 { S390_FEAT_PRNO_TRNG_QRTCR
, S390_FEAT_MSA_EXT_5
},
458 { S390_FEAT_PRNO_TRNG
, S390_FEAT_MSA_EXT_5
},
459 { S390_FEAT_SIE_KSS
, S390_FEAT_SIE_F2
},
460 { S390_FEAT_AP_QUERY_CONFIG_INFO
, S390_FEAT_AP
},
461 { S390_FEAT_AP_FACILITIES_TEST
, S390_FEAT_AP
},
462 { S390_FEAT_PTFF_QSIE
, S390_FEAT_MULTIPLE_EPOCH
},
463 { S390_FEAT_PTFF_QTOUE
, S390_FEAT_MULTIPLE_EPOCH
},
464 { S390_FEAT_PTFF_STOE
, S390_FEAT_MULTIPLE_EPOCH
},
465 { S390_FEAT_PTFF_STOUE
, S390_FEAT_MULTIPLE_EPOCH
},
466 { S390_FEAT_AP_QUEUE_INTERRUPT_CONTROL
, S390_FEAT_AP
},
467 { S390_FEAT_DIAG_318
, S390_FEAT_EXTENDED_LENGTH_SCCB
},
468 { S390_FEAT_NNPA
, S390_FEAT_VECTOR
},
469 { S390_FEAT_RDP
, S390_FEAT_LOCAL_TLB_CLEARING
},
473 for (i
= 0; i
< ARRAY_SIZE(dep
); i
++) {
474 if (test_bit(dep
[i
][0], model
->features
) &&
475 !test_bit(dep
[i
][1], model
->features
)) {
476 warn_report("\'%s\' requires \'%s\'.",
477 s390_feat_def(dep
[i
][0])->name
,
478 s390_feat_def(dep
[i
][1])->name
);
483 static void error_prepend_missing_feat(const char *name
, void *opaque
)
485 error_prepend((Error
**) opaque
, "%s ", name
);
488 static void check_compatibility(const S390CPUModel
*max_model
,
489 const S390CPUModel
*model
, Error
**errp
)
491 S390FeatBitmap missing
;
493 if (model
->def
->gen
> max_model
->def
->gen
) {
494 error_setg(errp
, "Selected CPU generation is too new. Maximum "
495 "supported model in the configuration: \'%s\'",
496 max_model
->def
->name
);
498 } else if (model
->def
->gen
== max_model
->def
->gen
&&
499 model
->def
->ec_ga
> max_model
->def
->ec_ga
) {
500 error_setg(errp
, "Selected CPU GA level is too new. Maximum "
501 "supported model in the configuration: \'%s\'",
502 max_model
->def
->name
);
506 #ifndef CONFIG_USER_ONLY
507 if (only_migratable
&& test_bit(S390_FEAT_UNPACK
, model
->features
)) {
508 error_setg(errp
, "The unpack facility is not compatible with "
509 "the --only-migratable option. You must remove either "
510 "the 'unpack' facility or the --only-migratable option");
515 /* detect the missing features to properly report them */
516 bitmap_andnot(missing
, model
->features
, max_model
->features
, S390_FEAT_MAX
);
517 if (bitmap_empty(missing
, S390_FEAT_MAX
)) {
521 error_setg(errp
, " ");
522 s390_feat_bitmap_to_ascii(missing
, errp
, error_prepend_missing_feat
);
523 error_prepend(errp
, "Some features requested in the CPU model are not "
524 "available in the configuration: ");
527 S390CPUModel
*get_max_cpu_model(Error
**errp
)
530 static S390CPUModel max_model
;
538 kvm_s390_get_host_cpu_model(&max_model
, &err
);
540 max_model
.def
= s390_find_cpu_def(QEMU_MAX_CPU_TYPE
, QEMU_MAX_CPU_GEN
,
541 QEMU_MAX_CPU_EC_GA
, NULL
);
542 bitmap_copy(max_model
.features
, qemu_max_cpu_feat
, S390_FEAT_MAX
);
545 error_propagate(errp
, err
);
552 void s390_realize_cpu_model(CPUState
*cs
, Error
**errp
)
555 S390CPUClass
*xcc
= S390_CPU_GET_CLASS(cs
);
556 S390CPU
*cpu
= S390_CPU(cs
);
557 const S390CPUModel
*max_model
;
559 if (xcc
->kvm_required
&& !kvm_enabled()) {
560 error_setg(errp
, "CPU definition requires KVM");
565 /* no host model support -> perform compatibility stuff */
566 apply_cpu_model(NULL
, errp
);
570 max_model
= get_max_cpu_model(errp
);
572 error_prepend(errp
, "CPU models are not available: ");
576 /* copy over properties that can vary */
577 cpu
->model
->lowest_ibc
= max_model
->lowest_ibc
;
578 cpu
->model
->cpu_id
= max_model
->cpu_id
;
579 cpu
->model
->cpu_id_format
= max_model
->cpu_id_format
;
580 cpu
->model
->cpu_ver
= max_model
->cpu_ver
;
582 check_consistency(cpu
->model
);
583 check_compatibility(max_model
, cpu
->model
, &err
);
585 error_propagate(errp
, err
);
589 apply_cpu_model(cpu
->model
, errp
);
591 #if !defined(CONFIG_USER_ONLY)
592 cpu
->env
.cpuid
= s390_cpuid_from_cpu_model(cpu
->model
);
594 /* basic mode, write the cpu address into the first 4 bit of the ID */
595 cpu
->env
.cpuid
= deposit64(cpu
->env
.cpuid
, 54, 4, cpu
->env
.core_id
);
600 static void get_feature(Object
*obj
, Visitor
*v
, const char *name
,
601 void *opaque
, Error
**errp
)
603 S390Feat feat
= (S390Feat
) (uintptr_t) opaque
;
604 S390CPU
*cpu
= S390_CPU(obj
);
608 error_setg(errp
, "Details about the host CPU model are not available, "
609 "features cannot be queried.");
613 value
= test_bit(feat
, cpu
->model
->features
);
614 visit_type_bool(v
, name
, &value
, errp
);
617 static void set_feature(Object
*obj
, Visitor
*v
, const char *name
,
618 void *opaque
, Error
**errp
)
620 S390Feat feat
= (S390Feat
) (uintptr_t) opaque
;
621 DeviceState
*dev
= DEVICE(obj
);
622 S390CPU
*cpu
= S390_CPU(obj
);
626 error_setg(errp
, "Attempt to set property '%s' on '%s' after "
627 "it was realized", name
, object_get_typename(obj
));
629 } else if (!cpu
->model
) {
630 error_setg(errp
, "Details about the host CPU model are not available, "
631 "features cannot be changed.");
635 if (!visit_type_bool(v
, name
, &value
, errp
)) {
639 if (!test_bit(feat
, cpu
->model
->def
->full_feat
)) {
640 error_setg(errp
, "Feature '%s' is not available for CPU model '%s',"
641 " it was introduced with later models.",
642 name
, cpu
->model
->def
->name
);
645 set_bit(feat
, cpu
->model
->features
);
647 clear_bit(feat
, cpu
->model
->features
);
651 static void get_feature_group(Object
*obj
, Visitor
*v
, const char *name
,
652 void *opaque
, Error
**errp
)
654 S390FeatGroup group
= (S390FeatGroup
) (uintptr_t) opaque
;
655 const S390FeatGroupDef
*def
= s390_feat_group_def(group
);
656 S390CPU
*cpu
= S390_CPU(obj
);
661 error_setg(errp
, "Details about the host CPU model are not available, "
662 "features cannot be queried.");
666 /* a group is enabled if all features are enabled */
667 bitmap_and(tmp
, cpu
->model
->features
, def
->feat
, S390_FEAT_MAX
);
668 value
= bitmap_equal(tmp
, def
->feat
, S390_FEAT_MAX
);
669 visit_type_bool(v
, name
, &value
, errp
);
672 static void set_feature_group(Object
*obj
, Visitor
*v
, const char *name
,
673 void *opaque
, Error
**errp
)
675 S390FeatGroup group
= (S390FeatGroup
) (uintptr_t) opaque
;
676 const S390FeatGroupDef
*def
= s390_feat_group_def(group
);
677 DeviceState
*dev
= DEVICE(obj
);
678 S390CPU
*cpu
= S390_CPU(obj
);
682 error_setg(errp
, "Attempt to set property '%s' on '%s' after "
683 "it was realized", name
, object_get_typename(obj
));
685 } else if (!cpu
->model
) {
686 error_setg(errp
, "Details about the host CPU model are not available, "
687 "features cannot be changed.");
691 if (!visit_type_bool(v
, name
, &value
, errp
)) {
695 /* groups are added in one shot, so an intersect is sufficient */
696 if (!bitmap_intersects(def
->feat
, cpu
->model
->def
->full_feat
,
698 error_setg(errp
, "Group '%s' is not available for CPU model '%s',"
699 " it was introduced with later models.",
700 name
, cpu
->model
->def
->name
);
703 bitmap_or(cpu
->model
->features
, cpu
->model
->features
, def
->feat
,
706 bitmap_andnot(cpu
->model
->features
, cpu
->model
->features
, def
->feat
,
711 static void s390_cpu_model_initfn(Object
*obj
)
713 S390CPU
*cpu
= S390_CPU(obj
);
714 S390CPUClass
*xcc
= S390_CPU_GET_CLASS(cpu
);
716 cpu
->model
= g_malloc0(sizeof(*cpu
->model
));
717 /* copy the model, so we can modify it */
718 cpu
->model
->def
= xcc
->cpu_def
;
719 if (xcc
->is_static
) {
720 /* base model - features will never change */
721 bitmap_copy(cpu
->model
->features
, cpu
->model
->def
->base_feat
,
724 /* latest model - features can change */
725 bitmap_copy(cpu
->model
->features
,
726 cpu
->model
->def
->default_feat
, S390_FEAT_MAX
);
730 static S390CPUDef s390_qemu_cpu_def
;
731 static S390CPUModel s390_qemu_cpu_model
;
733 /* Set the qemu CPU model (on machine initialization). Must not be called
734 * once CPUs have been created.
736 void s390_set_qemu_cpu_model(uint16_t type
, uint8_t gen
, uint8_t ec_ga
,
737 const S390FeatInit feat_init
)
739 const S390CPUDef
*def
= s390_find_cpu_def(type
, gen
, ec_ga
, NULL
);
742 g_assert(QTAILQ_EMPTY_RCU(&cpus
));
744 /* TCG emulates some features that can usually not be enabled with
745 * the emulated machine generation. Make sure they can be enabled
746 * when using the QEMU model by adding them to full_feat. We have
747 * to copy the definition to do that.
749 memcpy(&s390_qemu_cpu_def
, def
, sizeof(s390_qemu_cpu_def
));
750 bitmap_or(s390_qemu_cpu_def
.full_feat
, s390_qemu_cpu_def
.full_feat
,
751 qemu_max_cpu_feat
, S390_FEAT_MAX
);
753 /* build the CPU model */
754 s390_qemu_cpu_model
.def
= &s390_qemu_cpu_def
;
755 bitmap_zero(s390_qemu_cpu_model
.features
, S390_FEAT_MAX
);
756 s390_init_feat_bitmap(feat_init
, s390_qemu_cpu_model
.features
);
759 static void s390_qemu_cpu_model_initfn(Object
*obj
)
761 S390CPU
*cpu
= S390_CPU(obj
);
763 cpu
->model
= g_malloc0(sizeof(*cpu
->model
));
764 /* copy the CPU model so we can modify it */
765 memcpy(cpu
->model
, &s390_qemu_cpu_model
, sizeof(*cpu
->model
));
768 static void s390_max_cpu_model_initfn(Object
*obj
)
770 const S390CPUModel
*max_model
;
771 S390CPU
*cpu
= S390_CPU(obj
);
772 Error
*local_err
= NULL
;
774 if (kvm_enabled() && !kvm_s390_cpu_models_supported()) {
775 /* "max" and "host" always work, even without CPU model support */
779 max_model
= get_max_cpu_model(&local_err
);
781 /* we expect errors only under KVM, when actually querying the kernel */
782 g_assert(kvm_enabled());
783 error_report_err(local_err
);
784 /* fallback to unsupported CPU models */
788 cpu
->model
= g_new(S390CPUModel
, 1);
789 /* copy the CPU model so we can modify it */
790 memcpy(cpu
->model
, max_model
, sizeof(*cpu
->model
));
793 static void s390_cpu_model_finalize(Object
*obj
)
795 S390CPU
*cpu
= S390_CPU(obj
);
801 static bool get_is_migration_safe(Object
*obj
, Error
**errp
)
803 return S390_CPU_GET_CLASS(obj
)->is_migration_safe
;
806 static bool get_is_static(Object
*obj
, Error
**errp
)
808 return S390_CPU_GET_CLASS(obj
)->is_static
;
811 static char *get_description(Object
*obj
, Error
**errp
)
813 return g_strdup(S390_CPU_GET_CLASS(obj
)->desc
);
816 void s390_cpu_model_class_register_props(ObjectClass
*oc
)
821 object_class_property_add_bool(oc
, "migration-safe", get_is_migration_safe
,
823 object_class_property_add_bool(oc
, "static", get_is_static
,
825 object_class_property_add_str(oc
, "description", get_description
, NULL
);
827 for (feat
= 0; feat
< S390_FEAT_MAX
; feat
++) {
828 const S390FeatDef
*def
= s390_feat_def(feat
);
829 object_class_property_add(oc
, def
->name
, "bool", get_feature
,
830 set_feature
, NULL
, (void *) feat
);
831 object_class_property_set_description(oc
, def
->name
, def
->desc
);
833 for (group
= 0; group
< S390_FEAT_GROUP_MAX
; group
++) {
834 const S390FeatGroupDef
*def
= s390_feat_group_def(group
);
835 object_class_property_add(oc
, def
->name
, "bool", get_feature_group
,
836 set_feature_group
, NULL
, (void *) group
);
837 object_class_property_set_description(oc
, def
->name
, def
->desc
);
842 static void s390_host_cpu_model_class_init(ObjectClass
*oc
, void *data
)
844 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
846 xcc
->kvm_required
= true;
847 xcc
->desc
= "KVM only: All recognized features";
851 static void s390_base_cpu_model_class_init(ObjectClass
*oc
, void *data
)
853 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
855 /* all base models are migration safe */
856 xcc
->cpu_def
= (const S390CPUDef
*) data
;
857 xcc
->is_migration_safe
= true;
858 xcc
->is_static
= true;
859 xcc
->desc
= xcc
->cpu_def
->desc
;
862 static void s390_cpu_model_class_init(ObjectClass
*oc
, void *data
)
864 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
866 /* model that can change between QEMU versions */
867 xcc
->cpu_def
= (const S390CPUDef
*) data
;
868 xcc
->is_migration_safe
= true;
869 xcc
->desc
= xcc
->cpu_def
->desc
;
872 static void s390_qemu_cpu_model_class_init(ObjectClass
*oc
, void *data
)
874 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
876 xcc
->is_migration_safe
= true;
877 xcc
->desc
= g_strdup_printf("QEMU Virtual CPU version %s",
881 static void s390_max_cpu_model_class_init(ObjectClass
*oc
, void *data
)
883 S390CPUClass
*xcc
= S390_CPU_CLASS(oc
);
886 * The "max" model is neither static nor migration safe. Under KVM
887 * it represents the "host" model. Under TCG it represents some kind of
888 * "qemu" CPU model without compat handling and maybe with some additional
889 * CPU features that are not yet unlocked in the "qemu" model.
892 "Enables all features supported by the accelerator in the current host";
895 /* Generate type name for a cpu model. Caller has to free the string. */
896 static char *s390_cpu_type_name(const char *model_name
)
898 return g_strdup_printf(S390_CPU_TYPE_NAME("%s"), model_name
);
901 /* Generate type name for a base cpu model. Caller has to free the string. */
902 static char *s390_base_cpu_type_name(const char *model_name
)
904 return g_strdup_printf(S390_CPU_TYPE_NAME("%s-base"), model_name
);
907 ObjectClass
*s390_cpu_class_by_name(const char *name
)
909 char *typename
= s390_cpu_type_name(name
);
912 oc
= object_class_by_name(typename
);
917 static const TypeInfo qemu_s390_cpu_type_info
= {
918 .name
= S390_CPU_TYPE_NAME("qemu"),
919 .parent
= TYPE_S390_CPU
,
920 .instance_init
= s390_qemu_cpu_model_initfn
,
921 .instance_finalize
= s390_cpu_model_finalize
,
922 .class_init
= s390_qemu_cpu_model_class_init
,
925 static const TypeInfo max_s390_cpu_type_info
= {
926 .name
= S390_CPU_TYPE_NAME("max"),
927 .parent
= TYPE_S390_CPU
,
928 .instance_init
= s390_max_cpu_model_initfn
,
929 .instance_finalize
= s390_cpu_model_finalize
,
930 .class_init
= s390_max_cpu_model_class_init
,
934 static const TypeInfo host_s390_cpu_type_info
= {
935 .name
= S390_CPU_TYPE_NAME("host"),
936 .parent
= S390_CPU_TYPE_NAME("max"),
937 .class_init
= s390_host_cpu_model_class_init
,
941 static void init_ignored_base_feat(void)
943 static const int feats
[] = {
944 /* MSA subfunctions that could not be available on certain machines */
946 S390_FEAT_KMAC_TDEA_128
,
947 S390_FEAT_KMAC_TDEA_192
,
949 S390_FEAT_KMC_TDEA_128
,
950 S390_FEAT_KMC_TDEA_192
,
952 S390_FEAT_KM_TDEA_128
,
953 S390_FEAT_KM_TDEA_192
,
954 S390_FEAT_KIMD_SHA_1
,
955 S390_FEAT_KLMD_SHA_1
,
956 /* CSSKE is deprecated on newer generations */
957 S390_FEAT_CONDITIONAL_SSKE
,
961 for (i
= 0; i
< ARRAY_SIZE(feats
); i
++) {
962 set_bit(feats
[i
], ignored_base_feat
);
966 static void register_types(void)
968 static const S390FeatInit qemu_latest_init
= { S390_FEAT_LIST_QEMU_LATEST
};
971 init_ignored_base_feat();
973 /* init all bitmaps from gnerated data initially */
974 s390_init_feat_bitmap(qemu_max_cpu_feat_init
, qemu_max_cpu_feat
);
975 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
976 s390_init_feat_bitmap(s390_cpu_defs
[i
].base_init
,
977 s390_cpu_defs
[i
].base_feat
);
978 s390_init_feat_bitmap(s390_cpu_defs
[i
].default_init
,
979 s390_cpu_defs
[i
].default_feat
);
980 s390_init_feat_bitmap(s390_cpu_defs
[i
].full_init
,
981 s390_cpu_defs
[i
].full_feat
);
984 /* initialize the qemu model with latest definition */
985 s390_set_qemu_cpu_model(QEMU_MAX_CPU_TYPE
, QEMU_MAX_CPU_GEN
,
986 QEMU_MAX_CPU_EC_GA
, qemu_latest_init
);
988 for (i
= 0; i
< ARRAY_SIZE(s390_cpu_defs
); i
++) {
989 char *base_name
= s390_base_cpu_type_name(s390_cpu_defs
[i
].name
);
992 .parent
= TYPE_S390_CPU
,
993 .instance_init
= s390_cpu_model_initfn
,
994 .instance_finalize
= s390_cpu_model_finalize
,
995 .class_init
= s390_base_cpu_model_class_init
,
996 .class_data
= (void *) &s390_cpu_defs
[i
],
998 char *name
= s390_cpu_type_name(s390_cpu_defs
[i
].name
);
1001 .parent
= TYPE_S390_CPU
,
1002 .instance_init
= s390_cpu_model_initfn
,
1003 .instance_finalize
= s390_cpu_model_finalize
,
1004 .class_init
= s390_cpu_model_class_init
,
1005 .class_data
= (void *) &s390_cpu_defs
[i
],
1008 type_register_static(&ti_base
);
1009 type_register_static(&ti
);
1014 type_register_static(&qemu_s390_cpu_type_info
);
1015 type_register_static(&max_s390_cpu_type_info
);
1017 type_register_static(&host_s390_cpu_type_info
);
1021 type_init(register_types
)