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13#include "qemu/osdep.h"
14#include "cpu.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"
25#endif
26#include "hw/s390x/pv.h"
27
28#define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \
29 { \
30 .name = _name, \
31 .type = _type, \
32 .gen = _gen, \
33 .ec_ga = _ec_ga, \
34 .mha_pow = _mha_pow, \
35 .hmfai = _hmfai, \
36 .desc = _desc, \
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 }, \
40 }
41
42
43
44
45
46
47static 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"),
86};
87
88#define QEMU_MAX_CPU_TYPE 0x3906
89#define QEMU_MAX_CPU_GEN 14
90#define QEMU_MAX_CPU_EC_GA 2
91static const S390FeatInit qemu_max_cpu_feat_init = { S390_FEAT_LIST_QEMU_MAX };
92static S390FeatBitmap qemu_max_cpu_feat;
93
94
95S390FeatBitmap ignored_base_feat;
96
97void s390_cpudef_featoff(uint8_t gen, uint8_t ec_ga, S390Feat feat)
98{
99 const S390CPUDef *def;
100
101 def = s390_find_cpu_def(0, gen, ec_ga, NULL);
102 clear_bit(feat, (unsigned long *)&def->default_feat);
103}
104
105void s390_cpudef_featoff_greater(uint8_t gen, uint8_t ec_ga, S390Feat feat)
106{
107 int i;
108
109 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) {
110 const S390CPUDef *def = &s390_cpu_defs[i];
111
112 if (def->gen < gen) {
113 continue;
114 }
115 if (def->gen == gen && def->ec_ga < ec_ga) {
116 continue;
117 }
118
119 clear_bit(feat, (unsigned long *)&def->default_feat);
120 }
121}
122
123void s390_cpudef_group_featoff_greater(uint8_t gen, uint8_t ec_ga,
124 S390FeatGroup group)
125{
126 const S390FeatGroupDef *group_def = s390_feat_group_def(group);
127 S390FeatBitmap group_def_off;
128 int i;
129
130 bitmap_complement(group_def_off, group_def->feat, S390_FEAT_MAX);
131
132 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) {
133 const S390CPUDef *cpu_def = &s390_cpu_defs[i];
134
135 if (cpu_def->gen < gen) {
136 continue;
137 }
138 if (cpu_def->gen == gen && cpu_def->ec_ga < ec_ga) {
139 continue;
140 }
141
142 bitmap_and((unsigned long *)&cpu_def->default_feat,
143 cpu_def->default_feat, group_def_off, S390_FEAT_MAX);
144 }
145}
146
147uint32_t s390_get_hmfai(void)
148{
149 static S390CPU *cpu;
150
151 if (!cpu) {
152 cpu = S390_CPU(qemu_get_cpu(0));
153 }
154
155 if (!cpu || !cpu->model) {
156 return 0;
157 }
158 return cpu->model->def->hmfai;
159}
160
161uint8_t s390_get_mha_pow(void)
162{
163 static S390CPU *cpu;
164
165 if (!cpu) {
166 cpu = S390_CPU(qemu_get_cpu(0));
167 }
168
169 if (!cpu || !cpu->model) {
170 return 0;
171 }
172 return cpu->model->def->mha_pow;
173}
174
175uint32_t s390_get_ibc_val(void)
176{
177 uint16_t unblocked_ibc, lowest_ibc;
178 static S390CPU *cpu;
179
180 if (!cpu) {
181 cpu = S390_CPU(qemu_get_cpu(0));
182 }
183
184 if (!cpu || !cpu->model) {
185 return 0;
186 }
187 unblocked_ibc = s390_ibc_from_cpu_model(cpu->model);
188 lowest_ibc = cpu->model->lowest_ibc;
189
190 if (!lowest_ibc || lowest_ibc > unblocked_ibc) {
191 return 0;
192 }
193 return ((uint32_t) lowest_ibc << 16) | unblocked_ibc;
194}
195
196void s390_get_feat_block(S390FeatType type, uint8_t *data)
197{
198 static S390CPU *cpu;
199
200 if (!cpu) {
201 cpu = S390_CPU(qemu_get_cpu(0));
202 }
203
204 if (!cpu || !cpu->model) {
205 return;
206 }
207 s390_fill_feat_block(cpu->model->features, type, data);
208}
209
210bool s390_has_feat(S390Feat feat)
211{
212 static S390CPU *cpu;
213
214 if (!cpu) {
215 cpu = S390_CPU(qemu_get_cpu(0));
216 }
217
218 if (!cpu || !cpu->model) {
219#ifdef CONFIG_KVM
220 if (kvm_enabled()) {
221 if (feat == S390_FEAT_VECTOR) {
222 return kvm_check_extension(kvm_state,
223 KVM_CAP_S390_VECTOR_REGISTERS);
224 }
225 if (feat == S390_FEAT_RUNTIME_INSTRUMENTATION) {
226 return kvm_s390_get_ri();
227 }
228 if (feat == S390_FEAT_MSA_EXT_3) {
229 return true;
230 }
231 }
232#endif
233 if (feat == S390_FEAT_ZPCI) {
234 return true;
235 }
236 return 0;
237 }
238
239 if (s390_is_pv()) {
240 switch (feat) {
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:
256 return false;
257 break;
258 default:
259 break;
260 }
261 }
262 return test_bit(feat, cpu->model->features);
263}
264
265uint8_t s390_get_gen_for_cpu_type(uint16_t type)
266{
267 int i;
268
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;
272 }
273 }
274 return 0;
275}
276
277const S390CPUDef *s390_find_cpu_def(uint16_t type, uint8_t gen, uint8_t ec_ga,
278 S390FeatBitmap features)
279{
280 const S390CPUDef *last_compatible = NULL;
281 const S390CPUDef *matching_cpu_type = NULL;
282 int i;
283
284 if (!gen) {
285 ec_ga = 0;
286 }
287 if (!gen && type) {
288 gen = s390_get_gen_for_cpu_type(type);
289 }
290
291 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) {
292 const S390CPUDef *def = &s390_cpu_defs[i];
293 S390FeatBitmap missing;
294
295
296 if (gen) {
297 if (def->gen > gen) {
298 break;
299 } else if (def->gen == gen && ec_ga && def->ec_ga > ec_ga) {
300 break;
301 }
302 }
303
304 if (features) {
305
306 bitmap_andnot(missing, def->base_feat, features, S390_FEAT_MAX);
307
308
309
310
311 bitmap_andnot(missing, missing, ignored_base_feat, S390_FEAT_MAX);
312 if (!bitmap_empty(missing, S390_FEAT_MAX)) {
313 break;
314 }
315 }
316
317
318 if (def->type == type && def->ec_ga == ec_ga) {
319 return def;
320 }
321
322 if (def->type == type) {
323 matching_cpu_type = def;
324 }
325 last_compatible = def;
326 }
327
328 if (matching_cpu_type) {
329 return matching_cpu_type;
330 }
331 return last_compatible;
332}
333
334static void s390_print_cpu_model_list_entry(gpointer data, gpointer user_data)
335{
336 const S390CPUClass *scc = S390_CPU_CLASS((ObjectClass *)data);
337 char *name = g_strdup(object_class_get_name((ObjectClass *)data));
338 const char *details = "";
339
340 if (scc->is_static) {
341 details = "(static, migration-safe)";
342 } else if (scc->is_migration_safe) {
343 details = "(migration-safe)";
344 }
345
346
347 g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0;
348 qemu_printf("s390 %-15s %-35s %s\n", name, scc->desc, details);
349 g_free(name);
350}
351
352static gint s390_cpu_list_compare(gconstpointer a, gconstpointer b)
353{
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);
358
359
360
361
362
363 if (name_a[0] == 'q') {
364 return -1;
365 } else if (name_b[0] == 'q') {
366 return 1;
367 } else if (name_a[0] == 'h') {
368 return -1;
369 } else if (name_b[0] == 'h') {
370 return 1;
371 } else if (name_a[0] == 'm') {
372 return -1;
373 } else if (name_b[0] == 'm') {
374 return 1;
375 }
376
377
378 if (cc_a->cpu_def != cc_b->cpu_def) {
379 return cc_a->cpu_def - cc_b->cpu_def;
380 }
381
382
383 return cc_a->is_static ? -1 : 1;
384}
385
386void s390_cpu_list(void)
387{
388 S390FeatGroup group;
389 S390Feat feat;
390 GSList *list;
391
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);
395 g_slist_free(list);
396
397 qemu_printf("\nRecognized feature flags:\n");
398 for (feat = 0; feat < S390_FEAT_MAX; feat++) {
399 const S390FeatDef *def = s390_feat_def(feat);
400
401 qemu_printf("%-20s %s\n", def->name, def->desc);
402 }
403
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);
407
408 qemu_printf("%-20s %s\n", def->name, def->desc);
409 }
410}
411
412static void check_consistency(const S390CPUModel *model)
413{
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 },
470 };
471 int i;
472
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);
479 }
480 }
481}
482
483static void error_prepend_missing_feat(const char *name, void *opaque)
484{
485 error_prepend((Error **) opaque, "%s ", name);
486}
487
488static void check_compatibility(const S390CPUModel *max_model,
489 const S390CPUModel *model, Error **errp)
490{
491 S390FeatBitmap missing;
492
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);
497 return;
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);
503 return;
504 }
505
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");
511 return;
512 }
513#endif
514
515
516 bitmap_andnot(missing, model->features, max_model->features, S390_FEAT_MAX);
517 if (bitmap_empty(missing, S390_FEAT_MAX)) {
518 return;
519 }
520
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: ");
525}
526
527S390CPUModel *get_max_cpu_model(Error **errp)
528{
529 Error *err = NULL;
530 static S390CPUModel max_model;
531 static bool cached;
532
533 if (cached) {
534 return &max_model;
535 }
536
537 if (kvm_enabled()) {
538 kvm_s390_get_host_cpu_model(&max_model, &err);
539 } else {
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);
543 }
544 if (err) {
545 error_propagate(errp, err);
546 return NULL;
547 }
548 cached = true;
549 return &max_model;
550}
551
552void s390_realize_cpu_model(CPUState *cs, Error **errp)
553{
554 Error *err = NULL;
555 S390CPUClass *xcc = S390_CPU_GET_CLASS(cs);
556 S390CPU *cpu = S390_CPU(cs);
557 const S390CPUModel *max_model;
558
559 if (xcc->kvm_required && !kvm_enabled()) {
560 error_setg(errp, "CPU definition requires KVM");
561 return;
562 }
563
564 if (!cpu->model) {
565
566 apply_cpu_model(NULL, errp);
567 return;
568 }
569
570 max_model = get_max_cpu_model(errp);
571 if (!max_model) {
572 error_prepend(errp, "CPU models are not available: ");
573 return;
574 }
575
576
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;
581
582 check_consistency(cpu->model);
583 check_compatibility(max_model, cpu->model, &err);
584 if (err) {
585 error_propagate(errp, err);
586 return;
587 }
588
589 apply_cpu_model(cpu->model, errp);
590
591#if !defined(CONFIG_USER_ONLY)
592 cpu->env.cpuid = s390_cpuid_from_cpu_model(cpu->model);
593 if (tcg_enabled()) {
594
595 cpu->env.cpuid = deposit64(cpu->env.cpuid, 54, 4, cpu->env.core_id);
596 }
597#endif
598}
599
600static void get_feature(Object *obj, Visitor *v, const char *name,
601 void *opaque, Error **errp)
602{
603 S390Feat feat = (S390Feat) (uintptr_t) opaque;
604 S390CPU *cpu = S390_CPU(obj);
605 bool value;
606
607 if (!cpu->model) {
608 error_setg(errp, "Details about the host CPU model are not available, "
609 "features cannot be queried.");
610 return;
611 }
612
613 value = test_bit(feat, cpu->model->features);
614 visit_type_bool(v, name, &value, errp);
615}
616
617static void set_feature(Object *obj, Visitor *v, const char *name,
618 void *opaque, Error **errp)
619{
620 S390Feat feat = (S390Feat) (uintptr_t) opaque;
621 DeviceState *dev = DEVICE(obj);
622 S390CPU *cpu = S390_CPU(obj);
623 bool value;
624
625 if (dev->realized) {
626 error_setg(errp, "Attempt to set property '%s' on '%s' after "
627 "it was realized", name, object_get_typename(obj));
628 return;
629 } else if (!cpu->model) {
630 error_setg(errp, "Details about the host CPU model are not available, "
631 "features cannot be changed.");
632 return;
633 }
634
635 if (!visit_type_bool(v, name, &value, errp)) {
636 return;
637 }
638 if (value) {
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);
643 return;
644 }
645 set_bit(feat, cpu->model->features);
646 } else {
647 clear_bit(feat, cpu->model->features);
648 }
649}
650
651static void get_feature_group(Object *obj, Visitor *v, const char *name,
652 void *opaque, Error **errp)
653{
654 S390FeatGroup group = (S390FeatGroup) (uintptr_t) opaque;
655 const S390FeatGroupDef *def = s390_feat_group_def(group);
656 S390CPU *cpu = S390_CPU(obj);
657 S390FeatBitmap tmp;
658 bool value;
659
660 if (!cpu->model) {
661 error_setg(errp, "Details about the host CPU model are not available, "
662 "features cannot be queried.");
663 return;
664 }
665
666
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);
670}
671
672static void set_feature_group(Object *obj, Visitor *v, const char *name,
673 void *opaque, Error **errp)
674{
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);
679 bool value;
680
681 if (dev->realized) {
682 error_setg(errp, "Attempt to set property '%s' on '%s' after "
683 "it was realized", name, object_get_typename(obj));
684 return;
685 } else if (!cpu->model) {
686 error_setg(errp, "Details about the host CPU model are not available, "
687 "features cannot be changed.");
688 return;
689 }
690
691 if (!visit_type_bool(v, name, &value, errp)) {
692 return;
693 }
694 if (value) {
695
696 if (!bitmap_intersects(def->feat, cpu->model->def->full_feat,
697 S390_FEAT_MAX)) {
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);
701 return;
702 }
703 bitmap_or(cpu->model->features, cpu->model->features, def->feat,
704 S390_FEAT_MAX);
705 } else {
706 bitmap_andnot(cpu->model->features, cpu->model->features, def->feat,
707 S390_FEAT_MAX);
708 }
709}
710
711static void s390_cpu_model_initfn(Object *obj)
712{
713 S390CPU *cpu = S390_CPU(obj);
714 S390CPUClass *xcc = S390_CPU_GET_CLASS(cpu);
715
716 cpu->model = g_malloc0(sizeof(*cpu->model));
717
718 cpu->model->def = xcc->cpu_def;
719 if (xcc->is_static) {
720
721 bitmap_copy(cpu->model->features, cpu->model->def->base_feat,
722 S390_FEAT_MAX);
723 } else {
724
725 bitmap_copy(cpu->model->features,
726 cpu->model->def->default_feat, S390_FEAT_MAX);
727 }
728}
729
730static S390CPUDef s390_qemu_cpu_def;
731static S390CPUModel s390_qemu_cpu_model;
732
733
734
735
736void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga,
737 const S390FeatInit feat_init)
738{
739 const S390CPUDef *def = s390_find_cpu_def(type, gen, ec_ga, NULL);
740
741 g_assert(def);
742 g_assert(QTAILQ_EMPTY_RCU(&cpus));
743
744
745
746
747
748
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);
752
753
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);
757}
758
759static void s390_qemu_cpu_model_initfn(Object *obj)
760{
761 S390CPU *cpu = S390_CPU(obj);
762
763 cpu->model = g_malloc0(sizeof(*cpu->model));
764
765 memcpy(cpu->model, &s390_qemu_cpu_model, sizeof(*cpu->model));
766}
767
768static void s390_max_cpu_model_initfn(Object *obj)
769{
770 const S390CPUModel *max_model;
771 S390CPU *cpu = S390_CPU(obj);
772 Error *local_err = NULL;
773
774 if (kvm_enabled() && !kvm_s390_cpu_models_supported()) {
775
776 return;
777 }
778
779 max_model = get_max_cpu_model(&local_err);
780 if (local_err) {
781
782 g_assert(kvm_enabled());
783 error_report_err(local_err);
784
785 return;
786 }
787
788 cpu->model = g_new(S390CPUModel, 1);
789
790 memcpy(cpu->model, max_model, sizeof(*cpu->model));
791}
792
793static void s390_cpu_model_finalize(Object *obj)
794{
795 S390CPU *cpu = S390_CPU(obj);
796
797 g_free(cpu->model);
798 cpu->model = NULL;
799}
800
801static bool get_is_migration_safe(Object *obj, Error **errp)
802{
803 return S390_CPU_GET_CLASS(obj)->is_migration_safe;
804}
805
806static bool get_is_static(Object *obj, Error **errp)
807{
808 return S390_CPU_GET_CLASS(obj)->is_static;
809}
810
811static char *get_description(Object *obj, Error **errp)
812{
813 return g_strdup(S390_CPU_GET_CLASS(obj)->desc);
814}
815
816void s390_cpu_model_class_register_props(ObjectClass *oc)
817{
818 S390FeatGroup group;
819 S390Feat feat;
820
821 object_class_property_add_bool(oc, "migration-safe", get_is_migration_safe,
822 NULL);
823 object_class_property_add_bool(oc, "static", get_is_static,
824 NULL);
825 object_class_property_add_str(oc, "description", get_description, NULL);
826
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);
832 }
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);
838 }
839}
840
841#ifdef CONFIG_KVM
842static void s390_host_cpu_model_class_init(ObjectClass *oc, void *data)
843{
844 S390CPUClass *xcc = S390_CPU_CLASS(oc);
845
846 xcc->kvm_required = true;
847 xcc->desc = "KVM only: All recognized features";
848}
849#endif
850
851static void s390_base_cpu_model_class_init(ObjectClass *oc, void *data)
852{
853 S390CPUClass *xcc = S390_CPU_CLASS(oc);
854
855
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;
860}
861
862static void s390_cpu_model_class_init(ObjectClass *oc, void *data)
863{
864 S390CPUClass *xcc = S390_CPU_CLASS(oc);
865
866
867 xcc->cpu_def = (const S390CPUDef *) data;
868 xcc->is_migration_safe = true;
869 xcc->desc = xcc->cpu_def->desc;
870}
871
872static void s390_qemu_cpu_model_class_init(ObjectClass *oc, void *data)
873{
874 S390CPUClass *xcc = S390_CPU_CLASS(oc);
875
876 xcc->is_migration_safe = true;
877 xcc->desc = g_strdup_printf("QEMU Virtual CPU version %s",
878 qemu_hw_version());
879}
880
881static void s390_max_cpu_model_class_init(ObjectClass *oc, void *data)
882{
883 S390CPUClass *xcc = S390_CPU_CLASS(oc);
884
885
886
887
888
889
890
891 xcc->desc =
892 "Enables all features supported by the accelerator in the current host";
893}
894
895
896static char *s390_cpu_type_name(const char *model_name)
897{
898 return g_strdup_printf(S390_CPU_TYPE_NAME("%s"), model_name);
899}
900
901
902static char *s390_base_cpu_type_name(const char *model_name)
903{
904 return g_strdup_printf(S390_CPU_TYPE_NAME("%s-base"), model_name);
905}
906
907ObjectClass *s390_cpu_class_by_name(const char *name)
908{
909 char *typename = s390_cpu_type_name(name);
910 ObjectClass *oc;
911
912 oc = object_class_by_name(typename);
913 g_free(typename);
914 return oc;
915}
916
917static 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,
923};
924
925static 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,
931};
932
933#ifdef CONFIG_KVM
934static 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,
938};
939#endif
940
941static void init_ignored_base_feat(void)
942{
943 static const int feats[] = {
944
945 S390_FEAT_KMAC_DEA,
946 S390_FEAT_KMAC_TDEA_128,
947 S390_FEAT_KMAC_TDEA_192,
948 S390_FEAT_KMC_DEA,
949 S390_FEAT_KMC_TDEA_128,
950 S390_FEAT_KMC_TDEA_192,
951 S390_FEAT_KM_DEA,
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
957 S390_FEAT_CONDITIONAL_SSKE,
958 };
959 int i;
960
961 for (i = 0; i < ARRAY_SIZE(feats); i++) {
962 set_bit(feats[i], ignored_base_feat);
963 }
964}
965
966static void register_types(void)
967{
968 static const S390FeatInit qemu_latest_init = { S390_FEAT_LIST_QEMU_LATEST };
969 int i;
970
971 init_ignored_base_feat();
972
973
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);
982 }
983
984
985 s390_set_qemu_cpu_model(QEMU_MAX_CPU_TYPE, QEMU_MAX_CPU_GEN,
986 QEMU_MAX_CPU_EC_GA, qemu_latest_init);
987
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);
990 TypeInfo ti_base = {
991 .name = base_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],
997 };
998 char *name = s390_cpu_type_name(s390_cpu_defs[i].name);
999 TypeInfo ti = {
1000 .name = 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],
1006 };
1007
1008 type_register_static(&ti_base);
1009 type_register_static(&ti);
1010 g_free(base_name);
1011 g_free(name);
1012 }
1013
1014 type_register_static(&qemu_s390_cpu_type_info);
1015 type_register_static(&max_s390_cpu_type_info);
1016#ifdef CONFIG_KVM
1017 type_register_static(&host_s390_cpu_type_info);
1018#endif
1019}
1020
1021type_init(register_types)
1022