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41868f84 DH |
1 | /* |
2 | * CPU models for s390x | |
3 | * | |
4 | * Copyright 2016 IBM Corp. | |
5 | * | |
6 | * Author(s): David Hildenbrand <[email protected]> | |
7 | * | |
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 | |
10 | * directory. | |
11 | */ | |
12 | ||
13 | #include "qemu/osdep.h" | |
14 | #include "cpu.h" | |
4e58b838 | 15 | #include "internal.h" |
f16bbb9b DH |
16 | #include "kvm_s390x.h" |
17 | #include "sysemu/kvm.h" | |
41868f84 | 18 | #include "qapi/error.h" |
0754f604 | 19 | #include "qapi/visitor.h" |
80560137 | 20 | #include "qemu/error-report.h" |
137974ce | 21 | #include "qapi/qmp/qerror.h" |
b3db211f | 22 | #include "qapi/qobject-input-visitor.h" |
452fcdbc | 23 | #include "qapi/qmp/qdict.h" |
41868f84 DH |
24 | #ifndef CONFIG_USER_ONLY |
25 | #include "sysemu/arch_init.h" | |
e3fd586d | 26 | #include "hw/pci/pci.h" |
41868f84 DH |
27 | #endif |
28 | ||
6c064de1 DH |
29 | #define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \ |
30 | { \ | |
31 | .name = _name, \ | |
32 | .type = _type, \ | |
33 | .gen = _gen, \ | |
34 | .ec_ga = _ec_ga, \ | |
35 | .mha_pow = _mha_pow, \ | |
36 | .hmfai = _hmfai, \ | |
37 | .desc = _desc, \ | |
38 | .base_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _BASE }, \ | |
39 | .default_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _DEFAULT }, \ | |
40 | .full_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _FULL }, \ | |
41 | } | |
42 | ||
43 | /* | |
44 | * CPU definiton list in order of release. For now, base features of a | |
45 | * following release are always a subset of base features of the previous | |
46 | * release. Same is correct for the other feature sets. | |
47 | * A BC release always follows the corresponding EC release. | |
48 | */ | |
49 | static S390CPUDef s390_cpu_defs[] = { | |
50 | CPUDEF_INIT(0x2064, 7, 1, 38, 0x00000000U, "z900", "IBM zSeries 900 GA1"), | |
51 | CPUDEF_INIT(0x2064, 7, 2, 38, 0x00000000U, "z900.2", "IBM zSeries 900 GA2"), | |
52 | CPUDEF_INIT(0x2064, 7, 3, 38, 0x00000000U, "z900.3", "IBM zSeries 900 GA3"), | |
53 | CPUDEF_INIT(0x2066, 7, 3, 38, 0x00000000U, "z800", "IBM zSeries 800 GA1"), | |
54 | CPUDEF_INIT(0x2084, 8, 1, 38, 0x00000000U, "z990", "IBM zSeries 990 GA1"), | |
55 | CPUDEF_INIT(0x2084, 8, 2, 38, 0x00000000U, "z990.2", "IBM zSeries 990 GA2"), | |
56 | CPUDEF_INIT(0x2084, 8, 3, 38, 0x00000000U, "z990.3", "IBM zSeries 990 GA3"), | |
57 | CPUDEF_INIT(0x2086, 8, 3, 38, 0x00000000U, "z890", "IBM zSeries 880 GA1"), | |
58 | CPUDEF_INIT(0x2084, 8, 4, 38, 0x00000000U, "z990.4", "IBM zSeries 990 GA4"), | |
59 | CPUDEF_INIT(0x2086, 8, 4, 38, 0x00000000U, "z890.2", "IBM zSeries 880 GA2"), | |
60 | CPUDEF_INIT(0x2084, 8, 5, 38, 0x00000000U, "z990.5", "IBM zSeries 990 GA5"), | |
61 | CPUDEF_INIT(0x2086, 8, 5, 38, 0x00000000U, "z890.3", "IBM zSeries 880 GA3"), | |
62 | CPUDEF_INIT(0x2094, 9, 1, 40, 0x00000000U, "z9EC", "IBM System z9 EC GA1"), | |
63 | CPUDEF_INIT(0x2094, 9, 2, 40, 0x00000000U, "z9EC.2", "IBM System z9 EC GA2"), | |
64 | CPUDEF_INIT(0x2096, 9, 2, 40, 0x00000000U, "z9BC", "IBM System z9 BC GA1"), | |
65 | CPUDEF_INIT(0x2094, 9, 3, 40, 0x00000000U, "z9EC.3", "IBM System z9 EC GA3"), | |
66 | CPUDEF_INIT(0x2096, 9, 3, 40, 0x00000000U, "z9BC.2", "IBM System z9 BC GA2"), | |
67 | CPUDEF_INIT(0x2097, 10, 1, 43, 0x00000000U, "z10EC", "IBM System z10 EC GA1"), | |
68 | CPUDEF_INIT(0x2097, 10, 2, 43, 0x00000000U, "z10EC.2", "IBM System z10 EC GA2"), | |
69 | CPUDEF_INIT(0x2098, 10, 2, 43, 0x00000000U, "z10BC", "IBM System z10 BC GA1"), | |
70 | CPUDEF_INIT(0x2097, 10, 3, 43, 0x00000000U, "z10EC.3", "IBM System z10 EC GA3"), | |
71 | CPUDEF_INIT(0x2098, 10, 3, 43, 0x00000000U, "z10BC.2", "IBM System z10 BC GA2"), | |
72 | CPUDEF_INIT(0x2817, 11, 1, 44, 0x08000000U, "z196", "IBM zEnterprise 196 GA1"), | |
73 | CPUDEF_INIT(0x2817, 11, 2, 44, 0x08000000U, "z196.2", "IBM zEnterprise 196 GA2"), | |
74 | CPUDEF_INIT(0x2818, 11, 2, 44, 0x08000000U, "z114", "IBM zEnterprise 114 GA1"), | |
75 | CPUDEF_INIT(0x2827, 12, 1, 44, 0x08000000U, "zEC12", "IBM zEnterprise EC12 GA1"), | |
76 | CPUDEF_INIT(0x2827, 12, 2, 44, 0x08000000U, "zEC12.2", "IBM zEnterprise EC12 GA2"), | |
77 | CPUDEF_INIT(0x2828, 12, 2, 44, 0x08000000U, "zBC12", "IBM zEnterprise BC12 GA1"), | |
78 | CPUDEF_INIT(0x2964, 13, 1, 47, 0x08000000U, "z13", "IBM z13 GA1"), | |
79 | CPUDEF_INIT(0x2964, 13, 2, 47, 0x08000000U, "z13.2", "IBM z13 GA2"), | |
80 | CPUDEF_INIT(0x2965, 13, 2, 47, 0x08000000U, "z13s", "IBM z13s GA1"), | |
cc28a594 | 81 | CPUDEF_INIT(0x3906, 14, 1, 47, 0x08000000U, "z14", "IBM z14 GA1"), |
6c064de1 DH |
82 | }; |
83 | ||
35b4df64 DH |
84 | #define QEMU_MAX_CPU_TYPE 0x2827 |
85 | #define QEMU_MAX_CPU_GEN 12 | |
86 | #define QEMU_MAX_CPU_EC_GA 2 | |
87 | static const S390FeatInit qemu_max_cpu_feat_init = { S390_FEAT_LIST_QEMU_MAX }; | |
88 | static S390FeatBitmap qemu_max_cpu_feat; | |
89 | ||
30e82de7 DH |
90 | /* features part of a base model but not relevant for finding a base model */ |
91 | S390FeatBitmap ignored_base_feat; | |
92 | ||
c9ad8a7a JH |
93 | void s390_cpudef_featoff(uint8_t gen, uint8_t ec_ga, S390Feat feat) |
94 | { | |
95 | const S390CPUDef *def; | |
96 | ||
97 | def = s390_find_cpu_def(0, gen, ec_ga, NULL); | |
98 | clear_bit(feat, (unsigned long *)&def->default_feat); | |
99 | } | |
100 | ||
101 | void s390_cpudef_featoff_greater(uint8_t gen, uint8_t ec_ga, S390Feat feat) | |
102 | { | |
103 | int i; | |
104 | ||
105 | for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { | |
106 | const S390CPUDef *def = &s390_cpu_defs[i]; | |
107 | ||
108 | if (def->gen < gen) { | |
109 | continue; | |
110 | } | |
111 | if (def->gen == gen && def->ec_ga < ec_ga) { | |
112 | continue; | |
113 | } | |
114 | ||
115 | clear_bit(feat, (unsigned long *)&def->default_feat); | |
116 | } | |
117 | } | |
118 | ||
a3669307 DH |
119 | uint32_t s390_get_hmfai(void) |
120 | { | |
121 | static S390CPU *cpu; | |
122 | ||
123 | if (!cpu) { | |
124 | cpu = S390_CPU(qemu_get_cpu(0)); | |
125 | } | |
126 | ||
127 | if (!cpu || !cpu->model) { | |
128 | return 0; | |
129 | } | |
130 | return cpu->model->def->hmfai; | |
131 | } | |
132 | ||
3fad3252 DH |
133 | uint8_t s390_get_mha_pow(void) |
134 | { | |
135 | static S390CPU *cpu; | |
136 | ||
137 | if (!cpu) { | |
138 | cpu = S390_CPU(qemu_get_cpu(0)); | |
139 | } | |
140 | ||
141 | if (!cpu || !cpu->model) { | |
142 | return 0; | |
143 | } | |
144 | return cpu->model->def->mha_pow; | |
145 | } | |
146 | ||
059be520 DH |
147 | uint32_t s390_get_ibc_val(void) |
148 | { | |
149 | uint16_t unblocked_ibc, lowest_ibc; | |
150 | static S390CPU *cpu; | |
151 | ||
152 | if (!cpu) { | |
153 | cpu = S390_CPU(qemu_get_cpu(0)); | |
154 | } | |
155 | ||
156 | if (!cpu || !cpu->model) { | |
157 | return 0; | |
158 | } | |
159 | unblocked_ibc = s390_ibc_from_cpu_model(cpu->model); | |
160 | lowest_ibc = cpu->model->lowest_ibc; | |
161 | /* the lowest_ibc always has to be <= unblocked_ibc */ | |
162 | if (!lowest_ibc || lowest_ibc > unblocked_ibc) { | |
163 | return 0; | |
164 | } | |
165 | return ((uint32_t) lowest_ibc << 16) | unblocked_ibc; | |
166 | } | |
167 | ||
4dd4200e DH |
168 | void s390_get_feat_block(S390FeatType type, uint8_t *data) |
169 | { | |
170 | static S390CPU *cpu; | |
171 | ||
172 | if (!cpu) { | |
173 | cpu = S390_CPU(qemu_get_cpu(0)); | |
174 | } | |
175 | ||
176 | if (!cpu || !cpu->model) { | |
177 | return; | |
178 | } | |
179 | s390_fill_feat_block(cpu->model->features, type, data); | |
180 | } | |
181 | ||
7c72ac49 DH |
182 | bool s390_has_feat(S390Feat feat) |
183 | { | |
184 | static S390CPU *cpu; | |
185 | ||
186 | if (!cpu) { | |
187 | cpu = S390_CPU(qemu_get_cpu(0)); | |
188 | } | |
189 | ||
190 | if (!cpu || !cpu->model) { | |
191 | #ifdef CONFIG_KVM | |
192 | if (kvm_enabled()) { | |
193 | if (feat == S390_FEAT_VECTOR) { | |
194 | return kvm_check_extension(kvm_state, | |
195 | KVM_CAP_S390_VECTOR_REGISTERS); | |
196 | } | |
197 | if (feat == S390_FEAT_RUNTIME_INSTRUMENTATION) { | |
198 | return kvm_s390_get_ri(); | |
199 | } | |
c85d21c7 DH |
200 | if (feat == S390_FEAT_MSA_EXT_3) { |
201 | return true; | |
202 | } | |
7c72ac49 DH |
203 | } |
204 | #endif | |
8ad9087c CH |
205 | if (feat == S390_FEAT_ZPCI) { |
206 | return true; | |
207 | } | |
7c72ac49 DH |
208 | return 0; |
209 | } | |
210 | return test_bit(feat, cpu->model->features); | |
211 | } | |
212 | ||
3b84c25c DH |
213 | uint8_t s390_get_gen_for_cpu_type(uint16_t type) |
214 | { | |
215 | int i; | |
216 | ||
217 | for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { | |
218 | if (s390_cpu_defs[i].type == type) { | |
219 | return s390_cpu_defs[i].gen; | |
220 | } | |
221 | } | |
222 | return 0; | |
223 | } | |
224 | ||
225 | const S390CPUDef *s390_find_cpu_def(uint16_t type, uint8_t gen, uint8_t ec_ga, | |
226 | S390FeatBitmap features) | |
227 | { | |
228 | const S390CPUDef *last_compatible = NULL; | |
fbe8202e | 229 | const S390CPUDef *matching_cpu_type = NULL; |
3b84c25c DH |
230 | int i; |
231 | ||
232 | if (!gen) { | |
233 | ec_ga = 0; | |
234 | } | |
235 | if (!gen && type) { | |
236 | gen = s390_get_gen_for_cpu_type(type); | |
237 | } | |
238 | ||
239 | for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { | |
240 | const S390CPUDef *def = &s390_cpu_defs[i]; | |
241 | S390FeatBitmap missing; | |
242 | ||
243 | /* don't even try newer generations if we know the generation */ | |
244 | if (gen) { | |
245 | if (def->gen > gen) { | |
246 | break; | |
247 | } else if (def->gen == gen && ec_ga && def->ec_ga > ec_ga) { | |
248 | break; | |
249 | } | |
250 | } | |
251 | ||
252 | if (features) { | |
253 | /* see if the model satisfies the minimum features */ | |
254 | bitmap_andnot(missing, def->base_feat, features, S390_FEAT_MAX); | |
30e82de7 DH |
255 | /* |
256 | * Ignore certain features that are in the base model, but not | |
257 | * relevant for the search (esp. MSA subfunctions). | |
258 | */ | |
259 | bitmap_andnot(missing, missing, ignored_base_feat, S390_FEAT_MAX); | |
3b84c25c DH |
260 | if (!bitmap_empty(missing, S390_FEAT_MAX)) { |
261 | break; | |
262 | } | |
263 | } | |
264 | ||
265 | /* stop the search if we found the exact model */ | |
266 | if (def->type == type && def->ec_ga == ec_ga) { | |
267 | return def; | |
268 | } | |
fbe8202e DH |
269 | /* remember if we've at least seen one with the same cpu type */ |
270 | if (def->type == type) { | |
271 | matching_cpu_type = def; | |
272 | } | |
3b84c25c DH |
273 | last_compatible = def; |
274 | } | |
fbe8202e DH |
275 | /* prefer the model with the same cpu type, esp. don't take the BC for EC */ |
276 | if (matching_cpu_type) { | |
277 | return matching_cpu_type; | |
278 | } | |
3b84c25c DH |
279 | return last_compatible; |
280 | } | |
281 | ||
99aa6bf2 | 282 | static void s390_print_cpu_model_list_entry(gpointer data, gpointer user_data) |
41868f84 | 283 | { |
99aa6bf2 DH |
284 | CPUListState *s = user_data; |
285 | const S390CPUClass *scc = S390_CPU_CLASS((ObjectClass *)data); | |
286 | char *name = g_strdup(object_class_get_name((ObjectClass *)data)); | |
41868f84 DH |
287 | const char *details = ""; |
288 | ||
289 | if (scc->is_static) { | |
290 | details = "(static, migration-safe)"; | |
291 | } else if (scc->is_migration_safe) { | |
292 | details = "(migration-safe)"; | |
293 | } | |
294 | ||
e555cbe7 | 295 | /* strip off the -s390x-cpu */ |
41868f84 | 296 | g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; |
99aa6bf2 DH |
297 | (*s->cpu_fprintf)(s->file, "s390 %-15s %-35s %s\n", name, scc->desc, |
298 | details); | |
41868f84 DH |
299 | g_free(name); |
300 | } | |
301 | ||
99aa6bf2 DH |
302 | static gint s390_cpu_list_compare(gconstpointer a, gconstpointer b) |
303 | { | |
304 | const S390CPUClass *cc_a = S390_CPU_CLASS((ObjectClass *)a); | |
305 | const S390CPUClass *cc_b = S390_CPU_CLASS((ObjectClass *)b); | |
306 | const char *name_a = object_class_get_name((ObjectClass *)a); | |
307 | const char *name_b = object_class_get_name((ObjectClass *)b); | |
308 | ||
309 | /* move qemu and host to the top of the list, qemu first, host second */ | |
310 | if (name_a[0] == 'q') { | |
311 | return -1; | |
312 | } else if (name_b[0] == 'q') { | |
313 | return 1; | |
314 | } else if (name_a[0] == 'h') { | |
315 | return -1; | |
316 | } else if (name_b[0] == 'h') { | |
317 | return 1; | |
318 | } | |
319 | ||
320 | /* keep the same order we have in our table (sorted by release date) */ | |
321 | if (cc_a->cpu_def != cc_b->cpu_def) { | |
322 | return cc_a->cpu_def - cc_b->cpu_def; | |
323 | } | |
324 | ||
325 | /* exact same definition - list base model first */ | |
326 | return cc_a->is_static ? -1 : 1; | |
327 | } | |
328 | ||
41868f84 DH |
329 | void s390_cpu_list(FILE *f, fprintf_function print) |
330 | { | |
99aa6bf2 DH |
331 | CPUListState s = { |
332 | .file = f, | |
333 | .cpu_fprintf = print, | |
41868f84 | 334 | }; |
0754f604 DH |
335 | S390FeatGroup group; |
336 | S390Feat feat; | |
99aa6bf2 | 337 | GSList *list; |
41868f84 | 338 | |
99aa6bf2 DH |
339 | list = object_class_get_list(TYPE_S390_CPU, false); |
340 | list = g_slist_sort(list, s390_cpu_list_compare); | |
341 | g_slist_foreach(list, s390_print_cpu_model_list_entry, &s); | |
342 | g_slist_free(list); | |
0754f604 DH |
343 | |
344 | (*print)(f, "\nRecognized feature flags:\n"); | |
345 | for (feat = 0; feat < S390_FEAT_MAX; feat++) { | |
346 | const S390FeatDef *def = s390_feat_def(feat); | |
347 | ||
348 | (*print)(f, "%-20s %-50s\n", def->name, def->desc); | |
349 | } | |
350 | ||
351 | (*print)(f, "\nRecognized feature groups:\n"); | |
352 | for (group = 0; group < S390_FEAT_GROUP_MAX; group++) { | |
353 | const S390FeatGroupDef *def = s390_feat_group_def(group); | |
354 | ||
355 | (*print)(f, "%-20s %-50s\n", def->name, def->desc); | |
356 | } | |
41868f84 DH |
357 | } |
358 | ||
38cba1f4 VM |
359 | static S390CPUModel *get_max_cpu_model(Error **errp); |
360 | ||
41868f84 | 361 | #ifndef CONFIG_USER_ONLY |
38cba1f4 VM |
362 | static void list_add_feat(const char *name, void *opaque); |
363 | ||
364 | static void check_unavailable_features(const S390CPUModel *max_model, | |
365 | const S390CPUModel *model, | |
366 | strList **unavailable) | |
367 | { | |
368 | S390FeatBitmap missing; | |
369 | ||
370 | /* check general model compatibility */ | |
371 | if (max_model->def->gen < model->def->gen || | |
372 | (max_model->def->gen == model->def->gen && | |
373 | max_model->def->ec_ga < model->def->ec_ga)) { | |
374 | list_add_feat("type", unavailable); | |
375 | } | |
376 | ||
377 | /* detect missing features if any to properly report them */ | |
378 | bitmap_andnot(missing, model->features, max_model->features, | |
379 | S390_FEAT_MAX); | |
380 | if (!bitmap_empty(missing, S390_FEAT_MAX)) { | |
381 | s390_feat_bitmap_to_ascii(missing, unavailable, list_add_feat); | |
382 | } | |
383 | } | |
384 | ||
385 | struct CpuDefinitionInfoListData { | |
386 | CpuDefinitionInfoList *list; | |
387 | S390CPUModel *model; | |
388 | }; | |
389 | ||
41868f84 DH |
390 | static void create_cpu_model_list(ObjectClass *klass, void *opaque) |
391 | { | |
38cba1f4 VM |
392 | struct CpuDefinitionInfoListData *cpu_list_data = opaque; |
393 | CpuDefinitionInfoList **cpu_list = &cpu_list_data->list; | |
41868f84 DH |
394 | CpuDefinitionInfoList *entry; |
395 | CpuDefinitionInfo *info; | |
396 | char *name = g_strdup(object_class_get_name(klass)); | |
397 | S390CPUClass *scc = S390_CPU_CLASS(klass); | |
398 | ||
e555cbe7 | 399 | /* strip off the -s390x-cpu */ |
41868f84 | 400 | g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; |
96f64aa8 | 401 | info = g_new0(CpuDefinitionInfo, 1); |
41868f84 DH |
402 | info->name = name; |
403 | info->has_migration_safe = true; | |
404 | info->migration_safe = scc->is_migration_safe; | |
405 | info->q_static = scc->is_static; | |
8ed877b7 | 406 | info->q_typename = g_strdup(object_class_get_name(klass)); |
38cba1f4 VM |
407 | /* check for unavailable features */ |
408 | if (cpu_list_data->model) { | |
409 | Object *obj; | |
410 | S390CPU *sc; | |
411 | obj = object_new(object_class_get_name(klass)); | |
412 | sc = S390_CPU(obj); | |
413 | if (sc->model) { | |
414 | info->has_unavailable_features = true; | |
415 | check_unavailable_features(cpu_list_data->model, sc->model, | |
416 | &info->unavailable_features); | |
417 | } | |
418 | object_unref(obj); | |
419 | } | |
41868f84 | 420 | |
96f64aa8 | 421 | entry = g_new0(CpuDefinitionInfoList, 1); |
41868f84 DH |
422 | entry->value = info; |
423 | entry->next = *cpu_list; | |
424 | *cpu_list = entry; | |
425 | } | |
426 | ||
427 | CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp) | |
428 | { | |
38cba1f4 VM |
429 | struct CpuDefinitionInfoListData list_data = { |
430 | .list = NULL, | |
431 | }; | |
432 | ||
433 | list_data.model = get_max_cpu_model(errp); | |
434 | if (*errp) { | |
435 | error_free(*errp); | |
436 | *errp = NULL; | |
437 | } | |
41868f84 | 438 | |
38cba1f4 VM |
439 | object_class_foreach(create_cpu_model_list, TYPE_S390_CPU, false, |
440 | &list_data); | |
41868f84 | 441 | |
38cba1f4 | 442 | return list_data.list; |
41868f84 | 443 | } |
137974ce DH |
444 | |
445 | static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info, | |
446 | Error **errp) | |
447 | { | |
448 | const QDict *qdict = NULL; | |
449 | const QDictEntry *e; | |
450 | Visitor *visitor; | |
451 | ObjectClass *oc; | |
452 | S390CPU *cpu; | |
453 | Object *obj; | |
454 | ||
455 | if (info->props) { | |
7dc847eb | 456 | qdict = qobject_to(QDict, info->props); |
137974ce DH |
457 | if (!qdict) { |
458 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); | |
459 | return; | |
460 | } | |
461 | } | |
462 | ||
463 | oc = cpu_class_by_name(TYPE_S390_CPU, info->name); | |
464 | if (!oc) { | |
465 | error_setg(errp, "The CPU definition \'%s\' is unknown.", info->name); | |
466 | return; | |
467 | } | |
468 | if (S390_CPU_CLASS(oc)->kvm_required && !kvm_enabled()) { | |
469 | error_setg(errp, "The CPU definition '%s' requires KVM", info->name); | |
470 | return; | |
471 | } | |
472 | obj = object_new(object_class_get_name(oc)); | |
473 | cpu = S390_CPU(obj); | |
474 | ||
475 | if (!cpu->model) { | |
476 | error_setg(errp, "Details about the host CPU model are not available, " | |
477 | "it cannot be used."); | |
478 | object_unref(obj); | |
479 | return; | |
480 | } | |
481 | ||
482 | if (qdict) { | |
048abb7b | 483 | visitor = qobject_input_visitor_new(info->props); |
137974ce DH |
484 | visit_start_struct(visitor, NULL, NULL, 0, errp); |
485 | if (*errp) { | |
486 | object_unref(obj); | |
487 | return; | |
488 | } | |
489 | for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) { | |
490 | object_property_set(obj, visitor, e->key, errp); | |
491 | if (*errp) { | |
492 | break; | |
493 | } | |
494 | } | |
495 | if (!*errp) { | |
496 | visit_check_struct(visitor, errp); | |
497 | } | |
498 | visit_end_struct(visitor, NULL); | |
499 | visit_free(visitor); | |
500 | if (*errp) { | |
501 | object_unref(obj); | |
502 | return; | |
503 | } | |
504 | } | |
505 | ||
506 | /* copy the model and throw the cpu away */ | |
507 | memcpy(model, cpu->model, sizeof(*model)); | |
508 | object_unref(obj); | |
509 | } | |
510 | ||
511 | static void qdict_add_disabled_feat(const char *name, void *opaque) | |
512 | { | |
46f5ac20 | 513 | qdict_put_bool(opaque, name, false); |
137974ce DH |
514 | } |
515 | ||
516 | static void qdict_add_enabled_feat(const char *name, void *opaque) | |
517 | { | |
46f5ac20 | 518 | qdict_put_bool(opaque, name, true); |
137974ce DH |
519 | } |
520 | ||
521 | /* convert S390CPUDef into a static CpuModelInfo */ | |
522 | static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model, | |
523 | bool delta_changes) | |
524 | { | |
525 | QDict *qdict = qdict_new(); | |
526 | S390FeatBitmap bitmap; | |
527 | ||
528 | /* always fallback to the static base model */ | |
529 | info->name = g_strdup_printf("%s-base", model->def->name); | |
530 | ||
531 | if (delta_changes) { | |
532 | /* features deleted from the base feature set */ | |
533 | bitmap_andnot(bitmap, model->def->base_feat, model->features, | |
534 | S390_FEAT_MAX); | |
535 | if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { | |
536 | s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); | |
537 | } | |
538 | ||
539 | /* features added to the base feature set */ | |
540 | bitmap_andnot(bitmap, model->features, model->def->base_feat, | |
541 | S390_FEAT_MAX); | |
542 | if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { | |
543 | s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_enabled_feat); | |
544 | } | |
545 | } else { | |
546 | /* expand all features */ | |
547 | s390_feat_bitmap_to_ascii(model->features, qdict, | |
548 | qdict_add_enabled_feat); | |
549 | bitmap_complement(bitmap, model->features, S390_FEAT_MAX); | |
550 | s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); | |
551 | } | |
552 | ||
553 | if (!qdict_size(qdict)) { | |
cb3e7f08 | 554 | qobject_unref(qdict); |
137974ce DH |
555 | } else { |
556 | info->props = QOBJECT(qdict); | |
557 | info->has_props = true; | |
558 | } | |
559 | } | |
560 | ||
561 | CpuModelExpansionInfo *arch_query_cpu_model_expansion(CpuModelExpansionType type, | |
562 | CpuModelInfo *model, | |
563 | Error **errp) | |
564 | { | |
565 | CpuModelExpansionInfo *expansion_info = NULL; | |
566 | S390CPUModel s390_model; | |
567 | bool delta_changes = false; | |
568 | ||
569 | /* convert it to our internal representation */ | |
570 | cpu_model_from_info(&s390_model, model, errp); | |
571 | if (*errp) { | |
572 | return NULL; | |
573 | } | |
574 | ||
575 | if (type == CPU_MODEL_EXPANSION_TYPE_STATIC) { | |
576 | delta_changes = true; | |
577 | } else if (type != CPU_MODEL_EXPANSION_TYPE_FULL) { | |
578 | error_setg(errp, "The requested expansion type is not supported."); | |
579 | return NULL; | |
580 | } | |
581 | ||
582 | /* convert it back to a static representation */ | |
96f64aa8 | 583 | expansion_info = g_new0(CpuModelExpansionInfo, 1); |
137974ce DH |
584 | expansion_info->model = g_malloc0(sizeof(*expansion_info->model)); |
585 | cpu_info_from_model(expansion_info->model, &s390_model, delta_changes); | |
586 | return expansion_info; | |
587 | } | |
4e82ef05 DH |
588 | |
589 | static void list_add_feat(const char *name, void *opaque) | |
590 | { | |
591 | strList **last = (strList **) opaque; | |
592 | strList *entry; | |
593 | ||
96f64aa8 | 594 | entry = g_new0(strList, 1); |
4e82ef05 DH |
595 | entry->value = g_strdup(name); |
596 | entry->next = *last; | |
597 | *last = entry; | |
598 | } | |
599 | ||
600 | CpuModelCompareInfo *arch_query_cpu_model_comparison(CpuModelInfo *infoa, | |
601 | CpuModelInfo *infob, | |
602 | Error **errp) | |
603 | { | |
604 | CpuModelCompareResult feat_result, gen_result; | |
605 | CpuModelCompareInfo *compare_info; | |
606 | S390FeatBitmap missing, added; | |
607 | S390CPUModel modela, modelb; | |
608 | ||
609 | /* convert both models to our internal representation */ | |
610 | cpu_model_from_info(&modela, infoa, errp); | |
611 | if (*errp) { | |
612 | return NULL; | |
613 | } | |
614 | cpu_model_from_info(&modelb, infob, errp); | |
615 | if (*errp) { | |
616 | return NULL; | |
617 | } | |
96f64aa8 | 618 | compare_info = g_new0(CpuModelCompareInfo, 1); |
4e82ef05 DH |
619 | |
620 | /* check the cpu generation and ga level */ | |
621 | if (modela.def->gen == modelb.def->gen) { | |
622 | if (modela.def->ec_ga == modelb.def->ec_ga) { | |
623 | /* ec and corresponding bc are identical */ | |
624 | gen_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL; | |
625 | } else if (modela.def->ec_ga < modelb.def->ec_ga) { | |
626 | gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET; | |
627 | } else { | |
628 | gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; | |
629 | } | |
630 | } else if (modela.def->gen < modelb.def->gen) { | |
631 | gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET; | |
632 | } else { | |
633 | gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; | |
634 | } | |
635 | if (gen_result != CPU_MODEL_COMPARE_RESULT_IDENTICAL) { | |
636 | /* both models cannot be made identical */ | |
637 | list_add_feat("type", &compare_info->responsible_properties); | |
638 | } | |
639 | ||
640 | /* check the feature set */ | |
641 | if (bitmap_equal(modela.features, modelb.features, S390_FEAT_MAX)) { | |
642 | feat_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL; | |
643 | } else { | |
644 | bitmap_andnot(missing, modela.features, modelb.features, S390_FEAT_MAX); | |
645 | s390_feat_bitmap_to_ascii(missing, | |
646 | &compare_info->responsible_properties, | |
647 | list_add_feat); | |
648 | bitmap_andnot(added, modelb.features, modela.features, S390_FEAT_MAX); | |
649 | s390_feat_bitmap_to_ascii(added, &compare_info->responsible_properties, | |
650 | list_add_feat); | |
651 | if (bitmap_empty(missing, S390_FEAT_MAX)) { | |
652 | feat_result = CPU_MODEL_COMPARE_RESULT_SUBSET; | |
653 | } else if (bitmap_empty(added, S390_FEAT_MAX)) { | |
654 | feat_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; | |
655 | } else { | |
656 | feat_result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE; | |
657 | } | |
658 | } | |
659 | ||
660 | /* combine the results */ | |
661 | if (gen_result == feat_result) { | |
662 | compare_info->result = gen_result; | |
663 | } else if (feat_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) { | |
664 | compare_info->result = gen_result; | |
665 | } else if (gen_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) { | |
666 | compare_info->result = feat_result; | |
667 | } else { | |
668 | compare_info->result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE; | |
669 | } | |
670 | return compare_info; | |
671 | } | |
f1a47d08 DH |
672 | |
673 | CpuModelBaselineInfo *arch_query_cpu_model_baseline(CpuModelInfo *infoa, | |
674 | CpuModelInfo *infob, | |
675 | Error **errp) | |
676 | { | |
677 | CpuModelBaselineInfo *baseline_info; | |
678 | S390CPUModel modela, modelb, model; | |
679 | uint16_t cpu_type; | |
680 | uint8_t max_gen_ga; | |
681 | uint8_t max_gen; | |
682 | ||
683 | /* convert both models to our internal representation */ | |
684 | cpu_model_from_info(&modela, infoa, errp); | |
685 | if (*errp) { | |
686 | return NULL; | |
687 | } | |
688 | ||
689 | cpu_model_from_info(&modelb, infob, errp); | |
690 | if (*errp) { | |
691 | return NULL; | |
692 | } | |
693 | ||
694 | /* features both models support */ | |
695 | bitmap_and(model.features, modela.features, modelb.features, S390_FEAT_MAX); | |
696 | ||
697 | /* detect the maximum model not regarding features */ | |
698 | if (modela.def->gen == modelb.def->gen) { | |
699 | if (modela.def->type == modelb.def->type) { | |
700 | cpu_type = modela.def->type; | |
701 | } else { | |
702 | cpu_type = 0; | |
703 | } | |
704 | max_gen = modela.def->gen; | |
705 | max_gen_ga = MIN(modela.def->ec_ga, modelb.def->ec_ga); | |
706 | } else if (modela.def->gen > modelb.def->gen) { | |
707 | cpu_type = modelb.def->type; | |
708 | max_gen = modelb.def->gen; | |
709 | max_gen_ga = modelb.def->ec_ga; | |
710 | } else { | |
711 | cpu_type = modela.def->type; | |
712 | max_gen = modela.def->gen; | |
713 | max_gen_ga = modela.def->ec_ga; | |
714 | } | |
715 | ||
716 | model.def = s390_find_cpu_def(cpu_type, max_gen, max_gen_ga, | |
717 | model.features); | |
718 | /* strip off features not part of the max model */ | |
719 | bitmap_and(model.features, model.features, model.def->full_feat, | |
720 | S390_FEAT_MAX); | |
721 | ||
96f64aa8 | 722 | baseline_info = g_new0(CpuModelBaselineInfo, 1); |
f1a47d08 DH |
723 | baseline_info->model = g_malloc0(sizeof(*baseline_info->model)); |
724 | cpu_info_from_model(baseline_info->model, &model, true); | |
725 | return baseline_info; | |
726 | } | |
41868f84 DH |
727 | #endif |
728 | ||
80560137 DH |
729 | static void check_consistency(const S390CPUModel *model) |
730 | { | |
731 | static int dep[][2] = { | |
732 | { S390_FEAT_IPTE_RANGE, S390_FEAT_DAT_ENH }, | |
733 | { S390_FEAT_IDTE_SEGMENT, S390_FEAT_DAT_ENH }, | |
734 | { S390_FEAT_IDTE_REGION, S390_FEAT_DAT_ENH }, | |
735 | { S390_FEAT_IDTE_REGION, S390_FEAT_IDTE_SEGMENT }, | |
736 | { S390_FEAT_LOCAL_TLB_CLEARING, S390_FEAT_DAT_ENH}, | |
737 | { S390_FEAT_LONG_DISPLACEMENT_FAST, S390_FEAT_LONG_DISPLACEMENT }, | |
738 | { S390_FEAT_DFP_FAST, S390_FEAT_DFP }, | |
739 | { S390_FEAT_TRANSACTIONAL_EXE, S390_FEAT_STFLE_49 }, | |
740 | { S390_FEAT_EDAT_2, S390_FEAT_EDAT}, | |
741 | { S390_FEAT_MSA_EXT_5, S390_FEAT_KIMD_SHA_512 }, | |
742 | { S390_FEAT_MSA_EXT_5, S390_FEAT_KLMD_SHA_512 }, | |
743 | { S390_FEAT_MSA_EXT_4, S390_FEAT_MSA_EXT_3 }, | |
744 | { S390_FEAT_SIE_CMMA, S390_FEAT_CMM }, | |
745 | { S390_FEAT_SIE_CMMA, S390_FEAT_SIE_GSLS }, | |
746 | { S390_FEAT_SIE_PFMFI, S390_FEAT_EDAT }, | |
6da5c593 JH |
747 | { S390_FEAT_MSA_EXT_8, S390_FEAT_MSA_EXT_3 }, |
748 | { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_TOD_CLOCK_STEERING }, | |
749 | { S390_FEAT_VECTOR_PACKED_DECIMAL, S390_FEAT_VECTOR }, | |
750 | { S390_FEAT_VECTOR_ENH, S390_FEAT_VECTOR }, | |
751 | { S390_FEAT_INSTRUCTION_EXEC_PROT, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2 }, | |
752 | { S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2, S390_FEAT_ESOP }, | |
753 | { S390_FEAT_CMM_NT, S390_FEAT_CMM }, | |
754 | { S390_FEAT_GUARDED_STORAGE, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2 }, | |
755 | { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_STORE_CLOCK_FAST }, | |
756 | { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_TOD_CLOCK_STEERING }, | |
757 | { S390_FEAT_SEMAPHORE_ASSIST, S390_FEAT_STFLE_49 }, | |
758 | { S390_FEAT_KIMD_SHA3_224, S390_FEAT_MSA }, | |
759 | { S390_FEAT_KIMD_SHA3_256, S390_FEAT_MSA }, | |
760 | { S390_FEAT_KIMD_SHA3_384, S390_FEAT_MSA }, | |
761 | { S390_FEAT_KIMD_SHA3_512, S390_FEAT_MSA }, | |
762 | { S390_FEAT_KIMD_SHAKE_128, S390_FEAT_MSA }, | |
763 | { S390_FEAT_KIMD_SHAKE_256, S390_FEAT_MSA }, | |
764 | { S390_FEAT_KLMD_SHA3_224, S390_FEAT_MSA }, | |
765 | { S390_FEAT_KLMD_SHA3_256, S390_FEAT_MSA }, | |
766 | { S390_FEAT_KLMD_SHA3_384, S390_FEAT_MSA }, | |
767 | { S390_FEAT_KLMD_SHA3_512, S390_FEAT_MSA }, | |
768 | { S390_FEAT_KLMD_SHAKE_128, S390_FEAT_MSA }, | |
769 | { S390_FEAT_KLMD_SHAKE_256, S390_FEAT_MSA }, | |
770 | { S390_FEAT_PRNO_TRNG_QRTCR, S390_FEAT_MSA_EXT_5 }, | |
771 | { S390_FEAT_PRNO_TRNG, S390_FEAT_MSA_EXT_5 }, | |
c1b364ff | 772 | { S390_FEAT_SIE_KSS, S390_FEAT_SIE_F2 }, |
80560137 DH |
773 | }; |
774 | int i; | |
775 | ||
776 | for (i = 0; i < ARRAY_SIZE(dep); i++) { | |
777 | if (test_bit(dep[i][0], model->features) && | |
778 | !test_bit(dep[i][1], model->features)) { | |
3dc6f869 AF |
779 | warn_report("\'%s\' requires \'%s\'.", |
780 | s390_feat_def(dep[i][0])->name, | |
781 | s390_feat_def(dep[i][1])->name); | |
80560137 DH |
782 | } |
783 | } | |
784 | } | |
785 | ||
786 | static void error_prepend_missing_feat(const char *name, void *opaque) | |
787 | { | |
788 | error_prepend((Error **) opaque, "%s ", name); | |
789 | } | |
790 | ||
791 | static void check_compatibility(const S390CPUModel *max_model, | |
792 | const S390CPUModel *model, Error **errp) | |
793 | { | |
794 | S390FeatBitmap missing; | |
795 | ||
796 | if (model->def->gen > max_model->def->gen) { | |
797 | error_setg(errp, "Selected CPU generation is too new. Maximum " | |
798 | "supported model in the configuration: \'%s\'", | |
799 | max_model->def->name); | |
800 | return; | |
801 | } else if (model->def->gen == max_model->def->gen && | |
802 | model->def->ec_ga > max_model->def->ec_ga) { | |
803 | error_setg(errp, "Selected CPU GA level is too new. Maximum " | |
804 | "supported model in the configuration: \'%s\'", | |
805 | max_model->def->name); | |
806 | return; | |
807 | } | |
808 | ||
809 | /* detect the missing features to properly report them */ | |
810 | bitmap_andnot(missing, model->features, max_model->features, S390_FEAT_MAX); | |
811 | if (bitmap_empty(missing, S390_FEAT_MAX)) { | |
812 | return; | |
813 | } | |
814 | ||
815 | error_setg(errp, " "); | |
816 | s390_feat_bitmap_to_ascii(missing, errp, error_prepend_missing_feat); | |
817 | error_prepend(errp, "Some features requested in the CPU model are not " | |
818 | "available in the configuration: "); | |
819 | } | |
820 | ||
821 | static S390CPUModel *get_max_cpu_model(Error **errp) | |
822 | { | |
80560137 DH |
823 | static S390CPUModel max_model; |
824 | static bool cached; | |
825 | ||
826 | if (cached) { | |
827 | return &max_model; | |
828 | } | |
829 | ||
830 | if (kvm_enabled()) { | |
3b84c25c | 831 | kvm_s390_get_host_cpu_model(&max_model, errp); |
80560137 | 832 | } else { |
35b4df64 DH |
833 | max_model.def = s390_find_cpu_def(QEMU_MAX_CPU_TYPE, QEMU_MAX_CPU_GEN, |
834 | QEMU_MAX_CPU_EC_GA, NULL); | |
835 | bitmap_copy(max_model.features, qemu_max_cpu_feat, S390_FEAT_MAX); | |
836 | } | |
80560137 DH |
837 | if (!*errp) { |
838 | cached = true; | |
839 | return &max_model; | |
840 | } | |
80560137 DH |
841 | return NULL; |
842 | } | |
843 | ||
844 | static inline void apply_cpu_model(const S390CPUModel *model, Error **errp) | |
845 | { | |
846 | #ifndef CONFIG_USER_ONLY | |
847 | static S390CPUModel applied_model; | |
848 | static bool applied; | |
849 | ||
850 | /* | |
851 | * We have the same model for all VCPUs. KVM can only be configured before | |
852 | * any VCPUs are defined in KVM. | |
853 | */ | |
854 | if (applied) { | |
855 | if (model && memcmp(&applied_model, model, sizeof(S390CPUModel))) { | |
856 | error_setg(errp, "Mixed CPU models are not supported on s390x."); | |
857 | } | |
858 | return; | |
859 | } | |
860 | ||
861 | if (kvm_enabled()) { | |
3b84c25c | 862 | kvm_s390_apply_cpu_model(model, errp); |
80560137 DH |
863 | } |
864 | ||
865 | if (!*errp) { | |
866 | applied = true; | |
867 | if (model) { | |
868 | applied_model = *model; | |
869 | } | |
870 | } | |
871 | #endif | |
872 | } | |
873 | ||
41868f84 DH |
874 | void s390_realize_cpu_model(CPUState *cs, Error **errp) |
875 | { | |
876 | S390CPUClass *xcc = S390_CPU_GET_CLASS(cs); | |
80560137 DH |
877 | S390CPU *cpu = S390_CPU(cs); |
878 | const S390CPUModel *max_model; | |
41868f84 DH |
879 | |
880 | if (xcc->kvm_required && !kvm_enabled()) { | |
881 | error_setg(errp, "CPU definition requires KVM"); | |
882 | return; | |
883 | } | |
80560137 DH |
884 | |
885 | if (!cpu->model) { | |
886 | /* no host model support -> perform compatibility stuff */ | |
887 | apply_cpu_model(NULL, errp); | |
888 | return; | |
889 | } | |
890 | ||
891 | max_model = get_max_cpu_model(errp); | |
892 | if (*errp) { | |
893 | error_prepend(errp, "CPU models are not available: "); | |
894 | return; | |
895 | } | |
896 | ||
897 | /* copy over properties that can vary */ | |
898 | cpu->model->lowest_ibc = max_model->lowest_ibc; | |
899 | cpu->model->cpu_id = max_model->cpu_id; | |
64bc98f4 | 900 | cpu->model->cpu_id_format = max_model->cpu_id_format; |
80560137 DH |
901 | cpu->model->cpu_ver = max_model->cpu_ver; |
902 | ||
903 | check_consistency(cpu->model); | |
904 | check_compatibility(max_model, cpu->model, errp); | |
905 | if (*errp) { | |
906 | return; | |
907 | } | |
908 | ||
909 | apply_cpu_model(cpu->model, errp); | |
076d4d39 | 910 | |
1e70ba24 | 911 | #if !defined(CONFIG_USER_ONLY) |
076d4d39 DH |
912 | cpu->env.cpuid = s390_cpuid_from_cpu_model(cpu->model); |
913 | if (tcg_enabled()) { | |
914 | /* basic mode, write the cpu address into the first 4 bit of the ID */ | |
ca5c1457 | 915 | cpu->env.cpuid = deposit64(cpu->env.cpuid, 54, 4, cpu->env.core_id); |
076d4d39 | 916 | } |
1e70ba24 | 917 | #endif |
41868f84 DH |
918 | } |
919 | ||
0754f604 DH |
920 | static void get_feature(Object *obj, Visitor *v, const char *name, |
921 | void *opaque, Error **errp) | |
922 | { | |
923 | S390Feat feat = (S390Feat) opaque; | |
924 | S390CPU *cpu = S390_CPU(obj); | |
925 | bool value; | |
926 | ||
927 | if (!cpu->model) { | |
928 | error_setg(errp, "Details about the host CPU model are not available, " | |
929 | "features cannot be queried."); | |
930 | return; | |
931 | } | |
932 | ||
933 | value = test_bit(feat, cpu->model->features); | |
934 | visit_type_bool(v, name, &value, errp); | |
935 | } | |
936 | ||
937 | static void set_feature(Object *obj, Visitor *v, const char *name, | |
938 | void *opaque, Error **errp) | |
939 | { | |
940 | S390Feat feat = (S390Feat) opaque; | |
941 | DeviceState *dev = DEVICE(obj); | |
942 | S390CPU *cpu = S390_CPU(obj); | |
943 | bool value; | |
944 | ||
945 | if (dev->realized) { | |
946 | error_setg(errp, "Attempt to set property '%s' on '%s' after " | |
947 | "it was realized", name, object_get_typename(obj)); | |
948 | return; | |
949 | } else if (!cpu->model) { | |
950 | error_setg(errp, "Details about the host CPU model are not available, " | |
951 | "features cannot be changed."); | |
952 | return; | |
953 | } | |
954 | ||
955 | visit_type_bool(v, name, &value, errp); | |
956 | if (*errp) { | |
957 | return; | |
958 | } | |
959 | if (value) { | |
960 | if (!test_bit(feat, cpu->model->def->full_feat)) { | |
961 | error_setg(errp, "Feature '%s' is not available for CPU model '%s'," | |
962 | " it was introduced with later models.", | |
963 | name, cpu->model->def->name); | |
964 | return; | |
965 | } | |
966 | set_bit(feat, cpu->model->features); | |
967 | } else { | |
968 | clear_bit(feat, cpu->model->features); | |
969 | } | |
970 | } | |
971 | ||
972 | static void get_feature_group(Object *obj, Visitor *v, const char *name, | |
973 | void *opaque, Error **errp) | |
974 | { | |
975 | S390FeatGroup group = (S390FeatGroup) opaque; | |
976 | const S390FeatGroupDef *def = s390_feat_group_def(group); | |
977 | S390CPU *cpu = S390_CPU(obj); | |
978 | S390FeatBitmap tmp; | |
979 | bool value; | |
980 | ||
981 | if (!cpu->model) { | |
982 | error_setg(errp, "Details about the host CPU model are not available, " | |
983 | "features cannot be queried."); | |
984 | return; | |
985 | } | |
986 | ||
987 | /* a group is enabled if all features are enabled */ | |
988 | bitmap_and(tmp, cpu->model->features, def->feat, S390_FEAT_MAX); | |
989 | value = bitmap_equal(tmp, def->feat, S390_FEAT_MAX); | |
990 | visit_type_bool(v, name, &value, errp); | |
991 | } | |
992 | ||
993 | static void set_feature_group(Object *obj, Visitor *v, const char *name, | |
994 | void *opaque, Error **errp) | |
995 | { | |
996 | S390FeatGroup group = (S390FeatGroup) opaque; | |
997 | const S390FeatGroupDef *def = s390_feat_group_def(group); | |
998 | DeviceState *dev = DEVICE(obj); | |
999 | S390CPU *cpu = S390_CPU(obj); | |
1000 | bool value; | |
1001 | ||
1002 | if (dev->realized) { | |
1003 | error_setg(errp, "Attempt to set property '%s' on '%s' after " | |
1004 | "it was realized", name, object_get_typename(obj)); | |
1005 | return; | |
1006 | } else if (!cpu->model) { | |
1007 | error_setg(errp, "Details about the host CPU model are not available, " | |
1008 | "features cannot be changed."); | |
1009 | return; | |
1010 | } | |
1011 | ||
1012 | visit_type_bool(v, name, &value, errp); | |
1013 | if (*errp) { | |
1014 | return; | |
1015 | } | |
1016 | if (value) { | |
1017 | /* groups are added in one shot, so an intersect is sufficient */ | |
1018 | if (!bitmap_intersects(def->feat, cpu->model->def->full_feat, | |
1019 | S390_FEAT_MAX)) { | |
1020 | error_setg(errp, "Group '%s' is not available for CPU model '%s'," | |
1021 | " it was introduced with later models.", | |
1022 | name, cpu->model->def->name); | |
1023 | return; | |
1024 | } | |
1025 | bitmap_or(cpu->model->features, cpu->model->features, def->feat, | |
1026 | S390_FEAT_MAX); | |
1027 | } else { | |
1028 | bitmap_andnot(cpu->model->features, cpu->model->features, def->feat, | |
1029 | S390_FEAT_MAX); | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | void s390_cpu_model_register_props(Object *obj) | |
1034 | { | |
1035 | S390FeatGroup group; | |
1036 | S390Feat feat; | |
1037 | ||
1038 | for (feat = 0; feat < S390_FEAT_MAX; feat++) { | |
1039 | const S390FeatDef *def = s390_feat_def(feat); | |
1040 | object_property_add(obj, def->name, "bool", get_feature, | |
1041 | set_feature, NULL, (void *) feat, NULL); | |
1042 | object_property_set_description(obj, def->name, def->desc , NULL); | |
1043 | } | |
1044 | for (group = 0; group < S390_FEAT_GROUP_MAX; group++) { | |
1045 | const S390FeatGroupDef *def = s390_feat_group_def(group); | |
1046 | object_property_add(obj, def->name, "bool", get_feature_group, | |
1047 | set_feature_group, NULL, (void *) group, NULL); | |
1048 | object_property_set_description(obj, def->name, def->desc , NULL); | |
1049 | } | |
1050 | } | |
1051 | ||
6c064de1 DH |
1052 | static void s390_cpu_model_initfn(Object *obj) |
1053 | { | |
ad5afd07 DH |
1054 | S390CPU *cpu = S390_CPU(obj); |
1055 | S390CPUClass *xcc = S390_CPU_GET_CLASS(cpu); | |
1056 | ||
1057 | cpu->model = g_malloc0(sizeof(*cpu->model)); | |
1058 | /* copy the model, so we can modify it */ | |
1059 | cpu->model->def = xcc->cpu_def; | |
1060 | if (xcc->is_static) { | |
1061 | /* base model - features will never change */ | |
1062 | bitmap_copy(cpu->model->features, cpu->model->def->base_feat, | |
1063 | S390_FEAT_MAX); | |
1064 | } else { | |
1065 | /* latest model - features can change */ | |
1066 | bitmap_copy(cpu->model->features, | |
1067 | cpu->model->def->default_feat, S390_FEAT_MAX); | |
1068 | } | |
6c064de1 DH |
1069 | } |
1070 | ||
41868f84 DH |
1071 | #ifdef CONFIG_KVM |
1072 | static void s390_host_cpu_model_initfn(Object *obj) | |
1073 | { | |
3b84c25c DH |
1074 | S390CPU *cpu = S390_CPU(obj); |
1075 | Error *err = NULL; | |
1076 | ||
1077 | if (!kvm_enabled() || !kvm_s390_cpu_models_supported()) { | |
1078 | return; | |
1079 | } | |
1080 | ||
1081 | cpu->model = g_malloc0(sizeof(*cpu->model)); | |
1082 | kvm_s390_get_host_cpu_model(cpu->model, &err); | |
1083 | if (err) { | |
1084 | error_report_err(err); | |
1085 | g_free(cpu->model); | |
1086 | /* fallback to unsupported cpu models */ | |
1087 | cpu->model = NULL; | |
1088 | } | |
41868f84 DH |
1089 | } |
1090 | #endif | |
1091 | ||
35b4df64 DH |
1092 | static S390CPUDef s390_qemu_cpu_def; |
1093 | static S390CPUModel s390_qemu_cpu_model; | |
1094 | ||
1095 | /* Set the qemu CPU model (on machine initialization). Must not be called | |
1096 | * once CPUs have been created. | |
1097 | */ | |
1098 | void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga, | |
1099 | const S390FeatInit feat_init) | |
1100 | { | |
1101 | const S390CPUDef *def = s390_find_cpu_def(type, gen, ec_ga, NULL); | |
1102 | ||
1103 | g_assert(def); | |
1104 | g_assert(QTAILQ_EMPTY(&cpus)); | |
1105 | ||
1106 | /* TCG emulates some features that can usually not be enabled with | |
1107 | * the emulated machine generation. Make sure they can be enabled | |
1108 | * when using the QEMU model by adding them to full_feat. We have | |
1109 | * to copy the definition to do that. | |
1110 | */ | |
1111 | memcpy(&s390_qemu_cpu_def, def, sizeof(s390_qemu_cpu_def)); | |
1112 | bitmap_or(s390_qemu_cpu_def.full_feat, s390_qemu_cpu_def.full_feat, | |
1113 | qemu_max_cpu_feat, S390_FEAT_MAX); | |
1114 | ||
1115 | /* build the CPU model */ | |
1116 | s390_qemu_cpu_model.def = &s390_qemu_cpu_def; | |
1117 | bitmap_zero(s390_qemu_cpu_model.features, S390_FEAT_MAX); | |
1118 | s390_init_feat_bitmap(feat_init, s390_qemu_cpu_model.features); | |
1119 | } | |
1120 | ||
41868f84 DH |
1121 | static void s390_qemu_cpu_model_initfn(Object *obj) |
1122 | { | |
ad5afd07 DH |
1123 | S390CPU *cpu = S390_CPU(obj); |
1124 | ||
1125 | cpu->model = g_malloc0(sizeof(*cpu->model)); | |
35b4df64 DH |
1126 | /* copy the CPU model so we can modify it */ |
1127 | memcpy(cpu->model, &s390_qemu_cpu_model, sizeof(*cpu->model)); | |
41868f84 DH |
1128 | } |
1129 | ||
1130 | static void s390_cpu_model_finalize(Object *obj) | |
1131 | { | |
ad5afd07 DH |
1132 | S390CPU *cpu = S390_CPU(obj); |
1133 | ||
1134 | g_free(cpu->model); | |
1135 | cpu->model = NULL; | |
41868f84 DH |
1136 | } |
1137 | ||
6efadc90 DH |
1138 | static bool get_is_migration_safe(Object *obj, Error **errp) |
1139 | { | |
1140 | return S390_CPU_GET_CLASS(obj)->is_migration_safe; | |
1141 | } | |
1142 | ||
1143 | static bool get_is_static(Object *obj, Error **errp) | |
1144 | { | |
1145 | return S390_CPU_GET_CLASS(obj)->is_static; | |
1146 | } | |
1147 | ||
1148 | static char *get_description(Object *obj, Error **errp) | |
1149 | { | |
1150 | return g_strdup(S390_CPU_GET_CLASS(obj)->desc); | |
1151 | } | |
1152 | ||
1153 | void s390_cpu_model_class_register_props(ObjectClass *oc) | |
1154 | { | |
1155 | object_class_property_add_bool(oc, "migration-safe", get_is_migration_safe, | |
1156 | NULL, NULL); | |
1157 | object_class_property_add_bool(oc, "static", get_is_static, | |
1158 | NULL, NULL); | |
1159 | object_class_property_add_str(oc, "description", get_description, NULL, | |
1160 | NULL); | |
1161 | } | |
1162 | ||
41868f84 DH |
1163 | #ifdef CONFIG_KVM |
1164 | static void s390_host_cpu_model_class_init(ObjectClass *oc, void *data) | |
1165 | { | |
1166 | S390CPUClass *xcc = S390_CPU_CLASS(oc); | |
1167 | ||
1168 | xcc->kvm_required = true; | |
1169 | xcc->desc = "KVM only: All recognized features"; | |
1170 | } | |
1171 | #endif | |
1172 | ||
6c064de1 DH |
1173 | static void s390_base_cpu_model_class_init(ObjectClass *oc, void *data) |
1174 | { | |
1175 | S390CPUClass *xcc = S390_CPU_CLASS(oc); | |
1176 | ||
1177 | /* all base models are migration safe */ | |
1178 | xcc->cpu_def = (const S390CPUDef *) data; | |
1179 | xcc->is_migration_safe = true; | |
1180 | xcc->is_static = true; | |
1181 | xcc->desc = xcc->cpu_def->desc; | |
1182 | } | |
1183 | ||
1184 | static void s390_cpu_model_class_init(ObjectClass *oc, void *data) | |
1185 | { | |
1186 | S390CPUClass *xcc = S390_CPU_CLASS(oc); | |
1187 | ||
1188 | /* model that can change between QEMU versions */ | |
1189 | xcc->cpu_def = (const S390CPUDef *) data; | |
1190 | xcc->is_migration_safe = true; | |
1191 | xcc->desc = xcc->cpu_def->desc; | |
1192 | } | |
1193 | ||
41868f84 DH |
1194 | static void s390_qemu_cpu_model_class_init(ObjectClass *oc, void *data) |
1195 | { | |
1196 | S390CPUClass *xcc = S390_CPU_CLASS(oc); | |
1197 | ||
1198 | xcc->is_migration_safe = true; | |
1199 | xcc->desc = g_strdup_printf("QEMU Virtual CPU version %s", | |
1200 | qemu_hw_version()); | |
1201 | } | |
1202 | ||
41868f84 DH |
1203 | /* Generate type name for a cpu model. Caller has to free the string. */ |
1204 | static char *s390_cpu_type_name(const char *model_name) | |
1205 | { | |
1206 | return g_strdup_printf(S390_CPU_TYPE_NAME("%s"), model_name); | |
1207 | } | |
1208 | ||
6c064de1 DH |
1209 | /* Generate type name for a base cpu model. Caller has to free the string. */ |
1210 | static char *s390_base_cpu_type_name(const char *model_name) | |
1211 | { | |
1212 | return g_strdup_printf(S390_CPU_TYPE_NAME("%s-base"), model_name); | |
1213 | } | |
1214 | ||
41868f84 DH |
1215 | ObjectClass *s390_cpu_class_by_name(const char *name) |
1216 | { | |
1217 | char *typename = s390_cpu_type_name(name); | |
1218 | ObjectClass *oc; | |
1219 | ||
1220 | oc = object_class_by_name(typename); | |
1221 | g_free(typename); | |
1222 | return oc; | |
1223 | } | |
1224 | ||
1225 | static const TypeInfo qemu_s390_cpu_type_info = { | |
1226 | .name = S390_CPU_TYPE_NAME("qemu"), | |
1227 | .parent = TYPE_S390_CPU, | |
1228 | .instance_init = s390_qemu_cpu_model_initfn, | |
1229 | .instance_finalize = s390_cpu_model_finalize, | |
1230 | .class_init = s390_qemu_cpu_model_class_init, | |
1231 | }; | |
1232 | ||
1233 | #ifdef CONFIG_KVM | |
1234 | static const TypeInfo host_s390_cpu_type_info = { | |
1235 | .name = S390_CPU_TYPE_NAME("host"), | |
1236 | .parent = TYPE_S390_CPU, | |
1237 | .instance_init = s390_host_cpu_model_initfn, | |
1238 | .instance_finalize = s390_cpu_model_finalize, | |
1239 | .class_init = s390_host_cpu_model_class_init, | |
1240 | }; | |
1241 | #endif | |
1242 | ||
30e82de7 DH |
1243 | static void init_ignored_base_feat(void) |
1244 | { | |
1245 | static const int feats[] = { | |
1246 | /* MSA subfunctions that could not be available on certain machines */ | |
1247 | S390_FEAT_KMAC_DEA, | |
1248 | S390_FEAT_KMAC_TDEA_128, | |
1249 | S390_FEAT_KMAC_TDEA_192, | |
1250 | S390_FEAT_KMC_DEA, | |
1251 | S390_FEAT_KMC_TDEA_128, | |
1252 | S390_FEAT_KMC_TDEA_192, | |
1253 | S390_FEAT_KM_DEA, | |
1254 | S390_FEAT_KM_TDEA_128, | |
1255 | S390_FEAT_KM_TDEA_192, | |
1256 | S390_FEAT_KIMD_SHA_1, | |
1257 | S390_FEAT_KLMD_SHA_1, | |
1258 | }; | |
1259 | int i; | |
1260 | ||
1261 | for (i = 0; i < ARRAY_SIZE(feats); i++) { | |
1262 | set_bit(feats[i], ignored_base_feat); | |
1263 | } | |
1264 | } | |
1265 | ||
41868f84 DH |
1266 | static void register_types(void) |
1267 | { | |
35b4df64 | 1268 | static const S390FeatInit qemu_latest_init = { S390_FEAT_LIST_QEMU_LATEST }; |
6c064de1 DH |
1269 | int i; |
1270 | ||
30e82de7 DH |
1271 | init_ignored_base_feat(); |
1272 | ||
6c064de1 | 1273 | /* init all bitmaps from gnerated data initially */ |
35b4df64 | 1274 | s390_init_feat_bitmap(qemu_max_cpu_feat_init, qemu_max_cpu_feat); |
e3fd586d CH |
1275 | #ifndef CONFIG_USER_ONLY |
1276 | if (!pci_available) { | |
1277 | clear_bit(S390_FEAT_ZPCI, qemu_max_cpu_feat); | |
1278 | } | |
1279 | #endif | |
6c064de1 DH |
1280 | for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { |
1281 | s390_init_feat_bitmap(s390_cpu_defs[i].base_init, | |
1282 | s390_cpu_defs[i].base_feat); | |
1283 | s390_init_feat_bitmap(s390_cpu_defs[i].default_init, | |
1284 | s390_cpu_defs[i].default_feat); | |
1285 | s390_init_feat_bitmap(s390_cpu_defs[i].full_init, | |
1286 | s390_cpu_defs[i].full_feat); | |
1287 | } | |
1288 | ||
35b4df64 DH |
1289 | /* initialize the qemu model with latest definition */ |
1290 | s390_set_qemu_cpu_model(QEMU_MAX_CPU_TYPE, QEMU_MAX_CPU_GEN, | |
1291 | QEMU_MAX_CPU_EC_GA, qemu_latest_init); | |
1292 | ||
6c064de1 DH |
1293 | for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { |
1294 | char *base_name = s390_base_cpu_type_name(s390_cpu_defs[i].name); | |
1295 | TypeInfo ti_base = { | |
1296 | .name = base_name, | |
1297 | .parent = TYPE_S390_CPU, | |
1298 | .instance_init = s390_cpu_model_initfn, | |
1299 | .instance_finalize = s390_cpu_model_finalize, | |
1300 | .class_init = s390_base_cpu_model_class_init, | |
1301 | .class_data = (void *) &s390_cpu_defs[i], | |
1302 | }; | |
1303 | char *name = s390_cpu_type_name(s390_cpu_defs[i].name); | |
1304 | TypeInfo ti = { | |
1305 | .name = name, | |
1306 | .parent = TYPE_S390_CPU, | |
1307 | .instance_init = s390_cpu_model_initfn, | |
1308 | .instance_finalize = s390_cpu_model_finalize, | |
1309 | .class_init = s390_cpu_model_class_init, | |
1310 | .class_data = (void *) &s390_cpu_defs[i], | |
1311 | }; | |
1312 | ||
1313 | type_register_static(&ti_base); | |
1314 | type_register_static(&ti); | |
1315 | g_free(base_name); | |
1316 | g_free(name); | |
1317 | } | |
1318 | ||
41868f84 DH |
1319 | type_register_static(&qemu_s390_cpu_type_info); |
1320 | #ifdef CONFIG_KVM | |
1321 | type_register_static(&host_s390_cpu_type_info); | |
1322 | #endif | |
1323 | } | |
1324 | ||
1325 | type_init(register_types) |