target-sparc/cpu.c

   1 /*
   2  * Sparc CPU init helpers
   3  *
   4  *  Copyright (c) 2003-2005 Fabrice Bellard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "cpu.h"
  21 #include "qemu/error-report.h"
  22
  23 //#define DEBUG_FEATURES
  24
  25 static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *cpu_model);
  26
  27 /* CPUClass::reset() */
  28 static void sparc_cpu_reset(CPUState *s)
  29 {
  30     SPARCCPU *cpu = SPARC_CPU(s);
  31     SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(cpu);
  32     CPUSPARCState *env = &cpu->env;
  33
  34     scc->parent_reset(s);
  35
  36     memset(env, 0, offsetof(CPUSPARCState, version));
  37     tlb_flush(s, 1);
  38     env->cwp = 0;
  39 #ifndef TARGET_SPARC64
  40     env->wim = 1;
  41 #endif
  42     env->regwptr = env->regbase + (env->cwp * 16);
  43     CC_OP = CC_OP_FLAGS;
  44 #if defined(CONFIG_USER_ONLY)
  45 #ifdef TARGET_SPARC64
  46     env->cleanwin = env->nwindows - 2;
  47     env->cansave = env->nwindows - 2;
  48     env->pstate = PS_RMO | PS_PEF | PS_IE;
  49     env->asi = 0x82; /* Primary no-fault */
  50 #endif
  51 #else
  52 #if !defined(TARGET_SPARC64)
  53     env->psret = 0;
  54     env->psrs = 1;
  55     env->psrps = 1;
  56 #endif
  57 #ifdef TARGET_SPARC64
  58     env->pstate = PS_PRIV|PS_RED|PS_PEF|PS_AG;
  59     env->hpstate = cpu_has_hypervisor(env) ? HS_PRIV : 0;
  60     env->tl = env->maxtl;
  61     cpu_tsptr(env)->tt = TT_POWER_ON_RESET;
  62     env->lsu = 0;
  63 #else
  64     env->mmuregs[0] &= ~(MMU_E | MMU_NF);
  65     env->mmuregs[0] |= env->def->mmu_bm;
  66 #endif
  67     env->pc = 0;
  68     env->npc = env->pc + 4;
  69 #endif
  70     env->cache_control = 0;
  71 }
  72
  73 static bool sparc_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
  74 {
  75     if (interrupt_request & CPU_INTERRUPT_HARD) {
  76         SPARCCPU *cpu = SPARC_CPU(cs);
  77         CPUSPARCState *env = &cpu->env;
  78
  79         if (cpu_interrupts_enabled(env) && env->interrupt_index > 0) {
  80             int pil = env->interrupt_index & 0xf;
  81             int type = env->interrupt_index & 0xf0;
  82
  83             if (type != TT_EXTINT || cpu_pil_allowed(env, pil)) {
  84                 cs->exception_index = env->interrupt_index;
  85                 sparc_cpu_do_interrupt(cs);
  86                 return true;
  87             }
  88         }
  89     }
  90     return false;
  91 }
  92
  93 static int cpu_sparc_register(SPARCCPU *cpu, const char *cpu_model)
  94 {
  95     CPUClass *cc = CPU_GET_CLASS(cpu);
  96     CPUSPARCState *env = &cpu->env;
  97     char *s = g_strdup(cpu_model);
  98     char *featurestr, *name = strtok(s, ",");
  99     sparc_def_t def1, *def = &def1;
 100     Error *err = NULL;
 101
 102     if (cpu_sparc_find_by_name(def, name) < 0) {
 103         g_free(s);
 104         return -1;
 105     }
 106
 107     env->def = g_new0(sparc_def_t, 1);
 108     memcpy(env->def, def, sizeof(*def));
 109
 110     featurestr = strtok(NULL, ",");
 111     cc->parse_features(CPU(cpu), featurestr, &err);
 112     g_free(s);
 113     if (err) {
 114         error_report_err(err);
 115         return -1;
 116     }
 117
 118     env->version = def->iu_version;
 119     env->fsr = def->fpu_version;
 120     env->nwindows = def->nwindows;
 121 #if !defined(TARGET_SPARC64)
 122     env->mmuregs[0] |= def->mmu_version;
 123     cpu_sparc_set_id(env, 0);
 124     env->mxccregs[7] |= def->mxcc_version;
 125 #else
 126     env->mmu_version = def->mmu_version;
 127     env->maxtl = def->maxtl;
 128     env->version |= def->maxtl << 8;
 129     env->version |= def->nwindows - 1;
 130 #endif
 131     return 0;
 132 }
 133
 134 SPARCCPU *cpu_sparc_init(const char *cpu_model)
 135 {
 136     SPARCCPU *cpu;
 137
 138     cpu = SPARC_CPU(object_new(TYPE_SPARC_CPU));
 139
 140     if (cpu_sparc_register(cpu, cpu_model) < 0) {
 141         object_unref(OBJECT(cpu));
 142         return NULL;
 143     }
 144
 145     object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
 146
 147     return cpu;
 148 }
 149
 150 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu)
 151 {
 152 #if !defined(TARGET_SPARC64)
 153     env->mxccregs[7] = ((cpu + 8) & 0xf) << 24;
 154 #endif
 155 }
 156
 157 static const sparc_def_t sparc_defs[] = {
 158 #ifdef TARGET_SPARC64
 159     {
 160         .name = "Fujitsu Sparc64",
 161         .iu_version = ((0x04ULL << 48) | (0x02ULL << 32) | (0ULL << 24)),
 162         .fpu_version = 0x00000000,
 163         .mmu_version = mmu_us_12,
 164         .nwindows = 4,
 165         .maxtl = 4,
 166         .features = CPU_DEFAULT_FEATURES,
 167     },
 168     {
 169         .name = "Fujitsu Sparc64 III",
 170         .iu_version = ((0x04ULL << 48) | (0x03ULL << 32) | (0ULL << 24)),
 171         .fpu_version = 0x00000000,
 172         .mmu_version = mmu_us_12,
 173         .nwindows = 5,
 174         .maxtl = 4,
 175         .features = CPU_DEFAULT_FEATURES,
 176     },
 177     {
 178         .name = "Fujitsu Sparc64 IV",
 179         .iu_version = ((0x04ULL << 48) | (0x04ULL << 32) | (0ULL << 24)),
 180         .fpu_version = 0x00000000,
 181         .mmu_version = mmu_us_12,
 182         .nwindows = 8,
 183         .maxtl = 5,
 184         .features = CPU_DEFAULT_FEATURES,
 185     },
 186     {
 187         .name = "Fujitsu Sparc64 V",
 188         .iu_version = ((0x04ULL << 48) | (0x05ULL << 32) | (0x51ULL << 24)),
 189         .fpu_version = 0x00000000,
 190         .mmu_version = mmu_us_12,
 191         .nwindows = 8,
 192         .maxtl = 5,
 193         .features = CPU_DEFAULT_FEATURES,
 194     },
 195     {
 196         .name = "TI UltraSparc I",
 197         .iu_version = ((0x17ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
 198         .fpu_version = 0x00000000,
 199         .mmu_version = mmu_us_12,
 200         .nwindows = 8,
 201         .maxtl = 5,
 202         .features = CPU_DEFAULT_FEATURES,
 203     },
 204     {
 205         .name = "TI UltraSparc II",
 206         .iu_version = ((0x17ULL << 48) | (0x11ULL << 32) | (0x20ULL << 24)),
 207         .fpu_version = 0x00000000,
 208         .mmu_version = mmu_us_12,
 209         .nwindows = 8,
 210         .maxtl = 5,
 211         .features = CPU_DEFAULT_FEATURES,
 212     },
 213     {
 214         .name = "TI UltraSparc IIi",
 215         .iu_version = ((0x17ULL << 48) | (0x12ULL << 32) | (0x91ULL << 24)),
 216         .fpu_version = 0x00000000,
 217         .mmu_version = mmu_us_12,
 218         .nwindows = 8,
 219         .maxtl = 5,
 220         .features = CPU_DEFAULT_FEATURES,
 221     },
 222     {
 223         .name = "TI UltraSparc IIe",
 224         .iu_version = ((0x17ULL << 48) | (0x13ULL << 32) | (0x14ULL << 24)),
 225         .fpu_version = 0x00000000,
 226         .mmu_version = mmu_us_12,
 227         .nwindows = 8,
 228         .maxtl = 5,
 229         .features = CPU_DEFAULT_FEATURES,
 230     },
 231     {
 232         .name = "Sun UltraSparc III",
 233         .iu_version = ((0x3eULL << 48) | (0x14ULL << 32) | (0x34ULL << 24)),
 234         .fpu_version = 0x00000000,
 235         .mmu_version = mmu_us_12,
 236         .nwindows = 8,
 237         .maxtl = 5,
 238         .features = CPU_DEFAULT_FEATURES,
 239     },
 240     {
 241         .name = "Sun UltraSparc III Cu",
 242         .iu_version = ((0x3eULL << 48) | (0x15ULL << 32) | (0x41ULL << 24)),
 243         .fpu_version = 0x00000000,
 244         .mmu_version = mmu_us_3,
 245         .nwindows = 8,
 246         .maxtl = 5,
 247         .features = CPU_DEFAULT_FEATURES,
 248     },
 249     {
 250         .name = "Sun UltraSparc IIIi",
 251         .iu_version = ((0x3eULL << 48) | (0x16ULL << 32) | (0x34ULL << 24)),
 252         .fpu_version = 0x00000000,
 253         .mmu_version = mmu_us_12,
 254         .nwindows = 8,
 255         .maxtl = 5,
 256         .features = CPU_DEFAULT_FEATURES,
 257     },
 258     {
 259         .name = "Sun UltraSparc IV",
 260         .iu_version = ((0x3eULL << 48) | (0x18ULL << 32) | (0x31ULL << 24)),
 261         .fpu_version = 0x00000000,
 262         .mmu_version = mmu_us_4,
 263         .nwindows = 8,
 264         .maxtl = 5,
 265         .features = CPU_DEFAULT_FEATURES,
 266     },
 267     {
 268         .name = "Sun UltraSparc IV+",
 269         .iu_version = ((0x3eULL << 48) | (0x19ULL << 32) | (0x22ULL << 24)),
 270         .fpu_version = 0x00000000,
 271         .mmu_version = mmu_us_12,
 272         .nwindows = 8,
 273         .maxtl = 5,
 274         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_CMT,
 275     },
 276     {
 277         .name = "Sun UltraSparc IIIi+",
 278         .iu_version = ((0x3eULL << 48) | (0x22ULL << 32) | (0ULL << 24)),
 279         .fpu_version = 0x00000000,
 280         .mmu_version = mmu_us_3,
 281         .nwindows = 8,
 282         .maxtl = 5,
 283         .features = CPU_DEFAULT_FEATURES,
 284     },
 285     {
 286         .name = "Sun UltraSparc T1",
 287         /* defined in sparc_ifu_fdp.v and ctu.h */
 288         .iu_version = ((0x3eULL << 48) | (0x23ULL << 32) | (0x02ULL << 24)),
 289         .fpu_version = 0x00000000,
 290         .mmu_version = mmu_sun4v,
 291         .nwindows = 8,
 292         .maxtl = 6,
 293         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
 294         | CPU_FEATURE_GL,
 295     },
 296     {
 297         .name = "Sun UltraSparc T2",
 298         /* defined in tlu_asi_ctl.v and n2_revid_cust.v */
 299         .iu_version = ((0x3eULL << 48) | (0x24ULL << 32) | (0x02ULL << 24)),
 300         .fpu_version = 0x00000000,
 301         .mmu_version = mmu_sun4v,
 302         .nwindows = 8,
 303         .maxtl = 6,
 304         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
 305         | CPU_FEATURE_GL,
 306     },
 307     {
 308         .name = "NEC UltraSparc I",
 309         .iu_version = ((0x22ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
 310         .fpu_version = 0x00000000,
 311         .mmu_version = mmu_us_12,
 312         .nwindows = 8,
 313         .maxtl = 5,
 314         .features = CPU_DEFAULT_FEATURES,
 315     },
 316 #else
 317     {
 318         .name = "Fujitsu MB86904",
 319         .iu_version = 0x04 << 24, /* Impl 0, ver 4 */
 320         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
 321         .mmu_version = 0x04 << 24, /* Impl 0, ver 4 */
 322         .mmu_bm = 0x00004000,
 323         .mmu_ctpr_mask = 0x00ffffc0,
 324         .mmu_cxr_mask = 0x000000ff,
 325         .mmu_sfsr_mask = 0x00016fff,
 326         .mmu_trcr_mask = 0x00ffffff,
 327         .nwindows = 8,
 328         .features = CPU_DEFAULT_FEATURES,
 329     },
 330     {
 331         .name = "Fujitsu MB86907",
 332         .iu_version = 0x05 << 24, /* Impl 0, ver 5 */
 333         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
 334         .mmu_version = 0x05 << 24, /* Impl 0, ver 5 */
 335         .mmu_bm = 0x00004000,
 336         .mmu_ctpr_mask = 0xffffffc0,
 337         .mmu_cxr_mask = 0x000000ff,
 338         .mmu_sfsr_mask = 0x00016fff,
 339         .mmu_trcr_mask = 0xffffffff,
 340         .nwindows = 8,
 341         .features = CPU_DEFAULT_FEATURES,
 342     },
 343     {
 344         .name = "TI MicroSparc I",
 345         .iu_version = 0x41000000,
 346         .fpu_version = 4 << 17,
 347         .mmu_version = 0x41000000,
 348         .mmu_bm = 0x00004000,
 349         .mmu_ctpr_mask = 0x007ffff0,
 350         .mmu_cxr_mask = 0x0000003f,
 351         .mmu_sfsr_mask = 0x00016fff,
 352         .mmu_trcr_mask = 0x0000003f,
 353         .nwindows = 7,
 354         .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_MUL |
 355         CPU_FEATURE_DIV | CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT |
 356         CPU_FEATURE_FMUL,
 357     },
 358     {
 359         .name = "TI MicroSparc II",
 360         .iu_version = 0x42000000,
 361         .fpu_version = 4 << 17,
 362         .mmu_version = 0x02000000,
 363         .mmu_bm = 0x00004000,
 364         .mmu_ctpr_mask = 0x00ffffc0,
 365         .mmu_cxr_mask = 0x000000ff,
 366         .mmu_sfsr_mask = 0x00016fff,
 367         .mmu_trcr_mask = 0x00ffffff,
 368         .nwindows = 8,
 369         .features = CPU_DEFAULT_FEATURES,
 370     },
 371     {
 372         .name = "TI MicroSparc IIep",
 373         .iu_version = 0x42000000,
 374         .fpu_version = 4 << 17,
 375         .mmu_version = 0x04000000,
 376         .mmu_bm = 0x00004000,
 377         .mmu_ctpr_mask = 0x00ffffc0,
 378         .mmu_cxr_mask = 0x000000ff,
 379         .mmu_sfsr_mask = 0x00016bff,
 380         .mmu_trcr_mask = 0x00ffffff,
 381         .nwindows = 8,
 382         .features = CPU_DEFAULT_FEATURES,
 383     },
 384     {
 385         .name = "TI SuperSparc 40", /* STP1020NPGA */
 386         .iu_version = 0x41000000, /* SuperSPARC 2.x */
 387         .fpu_version = 0 << 17,
 388         .mmu_version = 0x00000800, /* SuperSPARC 2.x, no MXCC */
 389         .mmu_bm = 0x00002000,
 390         .mmu_ctpr_mask = 0xffffffc0,
 391         .mmu_cxr_mask = 0x0000ffff,
 392         .mmu_sfsr_mask = 0xffffffff,
 393         .mmu_trcr_mask = 0xffffffff,
 394         .nwindows = 8,
 395         .features = CPU_DEFAULT_FEATURES,
 396     },
 397     {
 398         .name = "TI SuperSparc 50", /* STP1020PGA */
 399         .iu_version = 0x40000000, /* SuperSPARC 3.x */
 400         .fpu_version = 0 << 17,
 401         .mmu_version = 0x01000800, /* SuperSPARC 3.x, no MXCC */
 402         .mmu_bm = 0x00002000,
 403         .mmu_ctpr_mask = 0xffffffc0,
 404         .mmu_cxr_mask = 0x0000ffff,
 405         .mmu_sfsr_mask = 0xffffffff,
 406         .mmu_trcr_mask = 0xffffffff,
 407         .nwindows = 8,
 408         .features = CPU_DEFAULT_FEATURES,
 409     },
 410     {
 411         .name = "TI SuperSparc 51",
 412         .iu_version = 0x40000000, /* SuperSPARC 3.x */
 413         .fpu_version = 0 << 17,
 414         .mmu_version = 0x01000000, /* SuperSPARC 3.x, MXCC */
 415         .mmu_bm = 0x00002000,
 416         .mmu_ctpr_mask = 0xffffffc0,
 417         .mmu_cxr_mask = 0x0000ffff,
 418         .mmu_sfsr_mask = 0xffffffff,
 419         .mmu_trcr_mask = 0xffffffff,
 420         .mxcc_version = 0x00000104,
 421         .nwindows = 8,
 422         .features = CPU_DEFAULT_FEATURES,
 423     },
 424     {
 425         .name = "TI SuperSparc 60", /* STP1020APGA */
 426         .iu_version = 0x40000000, /* SuperSPARC 3.x */
 427         .fpu_version = 0 << 17,
 428         .mmu_version = 0x01000800, /* SuperSPARC 3.x, no MXCC */
 429         .mmu_bm = 0x00002000,
 430         .mmu_ctpr_mask = 0xffffffc0,
 431         .mmu_cxr_mask = 0x0000ffff,
 432         .mmu_sfsr_mask = 0xffffffff,
 433         .mmu_trcr_mask = 0xffffffff,
 434         .nwindows = 8,
 435         .features = CPU_DEFAULT_FEATURES,
 436     },
 437     {
 438         .name = "TI SuperSparc 61",
 439         .iu_version = 0x44000000, /* SuperSPARC 3.x */
 440         .fpu_version = 0 << 17,
 441         .mmu_version = 0x01000000, /* SuperSPARC 3.x, MXCC */
 442         .mmu_bm = 0x00002000,
 443         .mmu_ctpr_mask = 0xffffffc0,
 444         .mmu_cxr_mask = 0x0000ffff,
 445         .mmu_sfsr_mask = 0xffffffff,
 446         .mmu_trcr_mask = 0xffffffff,
 447         .mxcc_version = 0x00000104,
 448         .nwindows = 8,
 449         .features = CPU_DEFAULT_FEATURES,
 450     },
 451     {
 452         .name = "TI SuperSparc II",
 453         .iu_version = 0x40000000, /* SuperSPARC II 1.x */
 454         .fpu_version = 0 << 17,
 455         .mmu_version = 0x08000000, /* SuperSPARC II 1.x, MXCC */
 456         .mmu_bm = 0x00002000,
 457         .mmu_ctpr_mask = 0xffffffc0,
 458         .mmu_cxr_mask = 0x0000ffff,
 459         .mmu_sfsr_mask = 0xffffffff,
 460         .mmu_trcr_mask = 0xffffffff,
 461         .mxcc_version = 0x00000104,
 462         .nwindows = 8,
 463         .features = CPU_DEFAULT_FEATURES,
 464     },
 465     {
 466         .name = "LEON2",
 467         .iu_version = 0xf2000000,
 468         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
 469         .mmu_version = 0xf2000000,
 470         .mmu_bm = 0x00004000,
 471         .mmu_ctpr_mask = 0x007ffff0,
 472         .mmu_cxr_mask = 0x0000003f,
 473         .mmu_sfsr_mask = 0xffffffff,
 474         .mmu_trcr_mask = 0xffffffff,
 475         .nwindows = 8,
 476         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN,
 477     },
 478     {
 479         .name = "LEON3",
 480         .iu_version = 0xf3000000,
 481         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
 482         .mmu_version = 0xf3000000,
 483         .mmu_bm = 0x00000000,
 484         .mmu_ctpr_mask = 0xfffffffc,
 485         .mmu_cxr_mask = 0x000000ff,
 486         .mmu_sfsr_mask = 0xffffffff,
 487         .mmu_trcr_mask = 0xffffffff,
 488         .nwindows = 8,
 489         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN |
 490         CPU_FEATURE_ASR17 | CPU_FEATURE_CACHE_CTRL | CPU_FEATURE_POWERDOWN |
 491         CPU_FEATURE_CASA,
 492     },
 493 #endif
 494 };
 495
 496 static const char * const feature_name[] = {
 497     "float",
 498     "float128",
 499     "swap",
 500     "mul",
 501     "div",
 502     "flush",
 503     "fsqrt",
 504     "fmul",
 505     "vis1",
 506     "vis2",
 507     "fsmuld",
 508     "hypv",
 509     "cmt",
 510     "gl",
 511 };
 512
 513 static void print_features(FILE *f, fprintf_function cpu_fprintf,
 514                            uint32_t features, const char *prefix)
 515 {
 516     unsigned int i;
 517
 518     for (i = 0; i < ARRAY_SIZE(feature_name); i++) {
 519         if (feature_name[i] && (features & (1 << i))) {
 520             if (prefix) {
 521                 (*cpu_fprintf)(f, "%s", prefix);
 522             }
 523             (*cpu_fprintf)(f, "%s ", feature_name[i]);
 524         }
 525     }
 526 }
 527
 528 static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features)
 529 {
 530     unsigned int i;
 531
 532     for (i = 0; i < ARRAY_SIZE(feature_name); i++) {
 533         if (feature_name[i] && !strcmp(flagname, feature_name[i])) {
 534             *features |= 1 << i;
 535             return;
 536         }
 537     }
 538     error_report("CPU feature %s not found", flagname);
 539 }
 540
 541 static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *name)
 542 {
 543     unsigned int i;
 544     const sparc_def_t *def = NULL;
 545
 546     for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
 547         if (strcasecmp(name, sparc_defs[i].name) == 0) {
 548             def = &sparc_defs[i];
 549         }
 550     }
 551     if (!def) {
 552         return -1;
 553     }
 554     memcpy(cpu_def, def, sizeof(*def));
 555     return 0;
 556 }
 557
 558 static void sparc_cpu_parse_features(CPUState *cs, char *features,
 559                                      Error **errp)
 560 {
 561     SPARCCPU *cpu = SPARC_CPU(cs);
 562     sparc_def_t *cpu_def = cpu->env.def;
 563     char *featurestr;
 564     uint32_t plus_features = 0;
 565     uint32_t minus_features = 0;
 566     uint64_t iu_version;
 567     uint32_t fpu_version, mmu_version, nwindows;
 568
 569     featurestr = features ? strtok(features, ",") : NULL;
 570     while (featurestr) {
 571         char *val;
 572
 573         if (featurestr[0] == '+') {
 574             add_flagname_to_bitmaps(featurestr + 1, &plus_features);
 575         } else if (featurestr[0] == '-') {
 576             add_flagname_to_bitmaps(featurestr + 1, &minus_features);
 577         } else if ((val = strchr(featurestr, '='))) {
 578             *val = 0; val++;
 579             if (!strcmp(featurestr, "iu_version")) {
 580                 char *err;
 581
 582                 iu_version = strtoll(val, &err, 0);
 583                 if (!*val || *err) {
 584                     error_setg(errp, "bad numerical value %s", val);
 585                     return;
 586                 }
 587                 cpu_def->iu_version = iu_version;
 588 #ifdef DEBUG_FEATURES
 589                 fprintf(stderr, "iu_version %" PRIx64 "\n", iu_version);
 590 #endif
 591             } else if (!strcmp(featurestr, "fpu_version")) {
 592                 char *err;
 593
 594                 fpu_version = strtol(val, &err, 0);
 595                 if (!*val || *err) {
 596                     error_setg(errp, "bad numerical value %s", val);
 597                     return;
 598                 }
 599                 cpu_def->fpu_version = fpu_version;
 600 #ifdef DEBUG_FEATURES
 601                 fprintf(stderr, "fpu_version %x\n", fpu_version);
 602 #endif
 603             } else if (!strcmp(featurestr, "mmu_version")) {
 604                 char *err;
 605
 606                 mmu_version = strtol(val, &err, 0);
 607                 if (!*val || *err) {
 608                     error_setg(errp, "bad numerical value %s", val);
 609                     return;
 610                 }
 611                 cpu_def->mmu_version = mmu_version;
 612 #ifdef DEBUG_FEATURES
 613                 fprintf(stderr, "mmu_version %x\n", mmu_version);
 614 #endif
 615             } else if (!strcmp(featurestr, "nwindows")) {
 616                 char *err;
 617
 618                 nwindows = strtol(val, &err, 0);
 619                 if (!*val || *err || nwindows > MAX_NWINDOWS ||
 620                     nwindows < MIN_NWINDOWS) {
 621                     error_setg(errp, "bad numerical value %s", val);
 622                     return;
 623                 }
 624                 cpu_def->nwindows = nwindows;
 625 #ifdef DEBUG_FEATURES
 626                 fprintf(stderr, "nwindows %d\n", nwindows);
 627 #endif
 628             } else {
 629                 error_setg(errp, "unrecognized feature %s", featurestr);
 630                 return;
 631             }
 632         } else {
 633             error_setg(errp, "feature string `%s' not in format "
 634                              "(+feature|-feature|feature=xyz)", featurestr);
 635             return;
 636         }
 637         featurestr = strtok(NULL, ",");
 638     }
 639     cpu_def->features |= plus_features;
 640     cpu_def->features &= ~minus_features;
 641 #ifdef DEBUG_FEATURES
 642     print_features(stderr, fprintf, cpu_def->features, NULL);
 643 #endif
 644 }
 645
 646 void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf)
 647 {
 648     unsigned int i;
 649
 650     for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
 651         (*cpu_fprintf)(f, "Sparc %16s IU " TARGET_FMT_lx
 652                        " FPU %08x MMU %08x NWINS %d ",
 653                        sparc_defs[i].name,
 654                        sparc_defs[i].iu_version,
 655                        sparc_defs[i].fpu_version,
 656                        sparc_defs[i].mmu_version,
 657                        sparc_defs[i].nwindows);
 658         print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES &
 659                        ~sparc_defs[i].features, "-");
 660         print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES &
 661                        sparc_defs[i].features, "+");
 662         (*cpu_fprintf)(f, "\n");
 663     }
 664     (*cpu_fprintf)(f, "Default CPU feature flags (use '-' to remove): ");
 665     print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES, NULL);
 666     (*cpu_fprintf)(f, "\n");
 667     (*cpu_fprintf)(f, "Available CPU feature flags (use '+' to add): ");
 668     print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES, NULL);
 669     (*cpu_fprintf)(f, "\n");
 670     (*cpu_fprintf)(f, "Numerical features (use '=' to set): iu_version "
 671                    "fpu_version mmu_version nwindows\n");
 672 }
 673
 674 static void cpu_print_cc(FILE *f, fprintf_function cpu_fprintf,
 675                          uint32_t cc)
 676 {
 677     cpu_fprintf(f, "%c%c%c%c", cc & PSR_NEG ? 'N' : '-',
 678                 cc & PSR_ZERO ? 'Z' : '-', cc & PSR_OVF ? 'V' : '-',
 679                 cc & PSR_CARRY ? 'C' : '-');
 680 }
 681
 682 #ifdef TARGET_SPARC64
 683 #define REGS_PER_LINE 4
 684 #else
 685 #define REGS_PER_LINE 8
 686 #endif
 687
 688 void sparc_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
 689                           int flags)
 690 {
 691     SPARCCPU *cpu = SPARC_CPU(cs);
 692     CPUSPARCState *env = &cpu->env;
 693     int i, x;
 694
 695     cpu_fprintf(f, "pc: " TARGET_FMT_lx "  npc: " TARGET_FMT_lx "\n", env->pc,
 696                 env->npc);
 697
 698     for (i = 0; i < 8; i++) {
 699         if (i % REGS_PER_LINE == 0) {
 700             cpu_fprintf(f, "%%g%d-%d:", i, i + REGS_PER_LINE - 1);
 701         }
 702         cpu_fprintf(f, " " TARGET_FMT_lx, env->gregs[i]);
 703         if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
 704             cpu_fprintf(f, "\n");
 705         }
 706     }
 707     for (x = 0; x < 3; x++) {
 708         for (i = 0; i < 8; i++) {
 709             if (i % REGS_PER_LINE == 0) {
 710                 cpu_fprintf(f, "%%%c%d-%d: ",
 711                             x == 0 ? 'o' : (x == 1 ? 'l' : 'i'),
 712                             i, i + REGS_PER_LINE - 1);
 713             }
 714             cpu_fprintf(f, TARGET_FMT_lx " ", env->regwptr[i + x * 8]);
 715             if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
 716                 cpu_fprintf(f, "\n");
 717             }
 718         }
 719     }
 720
 721     for (i = 0; i < TARGET_DPREGS; i++) {
 722         if ((i & 3) == 0) {
 723             cpu_fprintf(f, "%%f%02d: ", i * 2);
 724         }
 725         cpu_fprintf(f, " %016" PRIx64, env->fpr[i].ll);
 726         if ((i & 3) == 3) {
 727             cpu_fprintf(f, "\n");
 728         }
 729     }
 730 #ifdef TARGET_SPARC64
 731     cpu_fprintf(f, "pstate: %08x ccr: %02x (icc: ", env->pstate,
 732                 (unsigned)cpu_get_ccr(env));
 733     cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << PSR_CARRY_SHIFT);
 734     cpu_fprintf(f, " xcc: ");
 735     cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << (PSR_CARRY_SHIFT - 4));
 736     cpu_fprintf(f, ") asi: %02x tl: %d pil: %x\n", env->asi, env->tl,
 737                 env->psrpil);
 738     cpu_fprintf(f, "cansave: %d canrestore: %d otherwin: %d wstate: %d "
 739                 "cleanwin: %d cwp: %d\n",
 740                 env->cansave, env->canrestore, env->otherwin, env->wstate,
 741                 env->cleanwin, env->nwindows - 1 - env->cwp);
 742     cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx " fprs: "
 743                 TARGET_FMT_lx "\n", env->fsr, env->y, env->fprs);
 744 #else
 745     cpu_fprintf(f, "psr: %08x (icc: ", cpu_get_psr(env));
 746     cpu_print_cc(f, cpu_fprintf, cpu_get_psr(env));
 747     cpu_fprintf(f, " SPE: %c%c%c) wim: %08x\n", env->psrs ? 'S' : '-',
 748                 env->psrps ? 'P' : '-', env->psret ? 'E' : '-',
 749                 env->wim);
 750     cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx "\n",
 751                 env->fsr, env->y);
 752 #endif
 753     cpu_fprintf(f, "\n");
 754 }
 755
 756 static void sparc_cpu_set_pc(CPUState *cs, vaddr value)
 757 {
 758     SPARCCPU *cpu = SPARC_CPU(cs);
 759
 760     cpu->env.pc = value;
 761     cpu->env.npc = value + 4;
 762 }
 763
 764 static void sparc_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
 765 {
 766     SPARCCPU *cpu = SPARC_CPU(cs);
 767
 768     cpu->env.pc = tb->pc;
 769     cpu->env.npc = tb->cs_base;
 770 }
 771
 772 static bool sparc_cpu_has_work(CPUState *cs)
 773 {
 774     SPARCCPU *cpu = SPARC_CPU(cs);
 775     CPUSPARCState *env = &cpu->env;
 776
 777     return (cs->interrupt_request & CPU_INTERRUPT_HARD) &&
 778            cpu_interrupts_enabled(env);
 779 }
 780
 781 static void sparc_cpu_realizefn(DeviceState *dev, Error **errp)
 782 {
 783     SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(dev);
 784 #if defined(CONFIG_USER_ONLY)
 785     SPARCCPU *cpu = SPARC_CPU(dev);
 786     CPUSPARCState *env = &cpu->env;
 787
 788     if ((env->def->features & CPU_FEATURE_FLOAT)) {
 789         env->def->features |= CPU_FEATURE_FLOAT128;
 790     }
 791 #endif
 792
 793     qemu_init_vcpu(CPU(dev));
 794
 795     scc->parent_realize(dev, errp);
 796 }
 797
 798 static void sparc_cpu_initfn(Object *obj)
 799 {
 800     CPUState *cs = CPU(obj);
 801     SPARCCPU *cpu = SPARC_CPU(obj);
 802     CPUSPARCState *env = &cpu->env;
 803
 804     cs->env_ptr = env;
 805     cpu_exec_init(cs, &error_abort);
 806
 807     if (tcg_enabled()) {
 808         gen_intermediate_code_init(env);
 809     }
 810 }
 811
 812 static void sparc_cpu_uninitfn(Object *obj)
 813 {
 814     SPARCCPU *cpu = SPARC_CPU(obj);
 815     CPUSPARCState *env = &cpu->env;
 816
 817     g_free(env->def);
 818 }
 819
 820 static void sparc_cpu_class_init(ObjectClass *oc, void *data)
 821 {
 822     SPARCCPUClass *scc = SPARC_CPU_CLASS(oc);
 823     CPUClass *cc = CPU_CLASS(oc);
 824     DeviceClass *dc = DEVICE_CLASS(oc);
 825
 826     scc->parent_realize = dc->realize;
 827     dc->realize = sparc_cpu_realizefn;
 828
 829     scc->parent_reset = cc->reset;
 830     cc->reset = sparc_cpu_reset;
 831
 832     cc->parse_features = sparc_cpu_parse_features;
 833     cc->has_work = sparc_cpu_has_work;
 834     cc->do_interrupt = sparc_cpu_do_interrupt;
 835     cc->cpu_exec_interrupt = sparc_cpu_exec_interrupt;
 836     cc->dump_state = sparc_cpu_dump_state;
 837 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
 838     cc->memory_rw_debug = sparc_cpu_memory_rw_debug;
 839 #endif
 840     cc->set_pc = sparc_cpu_set_pc;
 841     cc->synchronize_from_tb = sparc_cpu_synchronize_from_tb;
 842     cc->gdb_read_register = sparc_cpu_gdb_read_register;
 843     cc->gdb_write_register = sparc_cpu_gdb_write_register;
 844 #ifdef CONFIG_USER_ONLY
 845     cc->handle_mmu_fault = sparc_cpu_handle_mmu_fault;
 846 #else
 847     cc->do_unassigned_access = sparc_cpu_unassigned_access;
 848     cc->do_unaligned_access = sparc_cpu_do_unaligned_access;
 849     cc->get_phys_page_debug = sparc_cpu_get_phys_page_debug;
 850 #endif
 851
 852 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
 853     cc->gdb_num_core_regs = 86;
 854 #else
 855     cc->gdb_num_core_regs = 72;
 856 #endif
 857
 858     /*
 859      * Reason: sparc_cpu_initfn() calls cpu_exec_init(), which saves
 860      * the object in cpus -> dangling pointer after final
 861      * object_unref().
 862      */
 863     dc->cannot_destroy_with_object_finalize_yet = true;
 864 }
 865
 866 static const TypeInfo sparc_cpu_type_info = {
 867     .name = TYPE_SPARC_CPU,
 868     .parent = TYPE_CPU,
 869     .instance_size = sizeof(SPARCCPU),
 870     .instance_init = sparc_cpu_initfn,
 871     .instance_finalize = sparc_cpu_uninitfn,
 872     .abstract = false,
 873     .class_size = sizeof(SPARCCPUClass),
 874     .class_init = sparc_cpu_class_init,
 875 };
 876
 877 static void sparc_cpu_register_types(void)
 878 {
 879     type_register_static(&sparc_cpu_type_info);
 880 }
 881
 882 type_init(sparc_cpu_register_types)