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 "qemu/osdep.h"
  21 #include "qapi/error.h"
  22 #include "cpu.h"
  23 #include "qemu/error-report.h"
  24 #include "exec/exec-all.h"
  25
  26 //#define DEBUG_FEATURES
  27
  28 static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *cpu_model);
  29
  30 /* CPUClass::reset() */
  31 static void sparc_cpu_reset(CPUState *s)
  32 {
  33     SPARCCPU *cpu = SPARC_CPU(s);
  34     SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(cpu);
  35     CPUSPARCState *env = &cpu->env;
  36
  37     scc->parent_reset(s);
  38
  39     memset(env, 0, offsetof(CPUSPARCState, version));
  40     tlb_flush(s, 1);
  41     env->cwp = 0;
  42 #ifndef TARGET_SPARC64
  43     env->wim = 1;
  44 #endif
  45     env->regwptr = env->regbase + (env->cwp * 16);
  46     CC_OP = CC_OP_FLAGS;
  47 #if defined(CONFIG_USER_ONLY)
  48 #ifdef TARGET_SPARC64
  49     env->cleanwin = env->nwindows - 2;
  50     env->cansave = env->nwindows - 2;
  51     env->pstate = PS_RMO | PS_PEF | PS_IE;
  52     env->asi = 0x82; /* Primary no-fault */
  53 #endif
  54 #else
  55 #if !defined(TARGET_SPARC64)
  56     env->psret = 0;
  57     env->psrs = 1;
  58     env->psrps = 1;
  59 #endif
  60 #ifdef TARGET_SPARC64
  61     env->pstate = PS_PRIV|PS_RED|PS_PEF|PS_AG;
  62     env->hpstate = cpu_has_hypervisor(env) ? HS_PRIV : 0;
  63     env->tl = env->maxtl;
  64     cpu_tsptr(env)->tt = TT_POWER_ON_RESET;
  65     env->lsu = 0;
  66 #else
  67     env->mmuregs[0] &= ~(MMU_E | MMU_NF);
  68     env->mmuregs[0] |= env->def->mmu_bm;
  69 #endif
  70     env->pc = 0;
  71     env->npc = env->pc + 4;
  72 #endif
  73     env->cache_control = 0;
  74 }
  75
  76 static bool sparc_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
  77 {
  78     if (interrupt_request & CPU_INTERRUPT_HARD) {
  79         SPARCCPU *cpu = SPARC_CPU(cs);
  80         CPUSPARCState *env = &cpu->env;
  81
  82         if (cpu_interrupts_enabled(env) && env->interrupt_index > 0) {
  83             int pil = env->interrupt_index & 0xf;
  84             int type = env->interrupt_index & 0xf0;
  85
  86             if (type != TT_EXTINT || cpu_pil_allowed(env, pil)) {
  87                 cs->exception_index = env->interrupt_index;
  88                 sparc_cpu_do_interrupt(cs);
  89                 return true;
  90             }
  91         }
  92     }
  93     return false;
  94 }
  95
  96 static void cpu_sparc_disas_set_info(CPUState *cpu, disassemble_info *info)
  97 {
  98     info->print_insn = print_insn_sparc;
  99 #ifdef TARGET_SPARC64
 100     info->mach = bfd_mach_sparc_v9b;
 101 #endif
 102 }
 103
 104 static void sparc_cpu_parse_features(CPUState *cs, char *features,
 105                                      Error **errp);
 106
 107 static int cpu_sparc_register(SPARCCPU *cpu, const char *cpu_model)
 108 {
 109     CPUSPARCState *env = &cpu->env;
 110     char *s = g_strdup(cpu_model);
 111     char *featurestr, *name = strtok(s, ",");
 112     sparc_def_t def1, *def = &def1;
 113     Error *err = NULL;
 114
 115     if (cpu_sparc_find_by_name(def, name) < 0) {
 116         g_free(s);
 117         return -1;
 118     }
 119
 120     env->def = g_memdup(def, sizeof(*def));
 121
 122     featurestr = strtok(NULL, ",");
 123     sparc_cpu_parse_features(CPU(cpu), featurestr, &err);
 124     g_free(s);
 125     if (err) {
 126         error_report_err(err);
 127         return -1;
 128     }
 129
 130     env->version = def->iu_version;
 131     env->fsr = def->fpu_version;
 132     env->nwindows = def->nwindows;
 133 #if !defined(TARGET_SPARC64)
 134     env->mmuregs[0] |= def->mmu_version;
 135     cpu_sparc_set_id(env, 0);
 136     env->mxccregs[7] |= def->mxcc_version;
 137 #else
 138     env->mmu_version = def->mmu_version;
 139     env->maxtl = def->maxtl;
 140     env->version |= def->maxtl << 8;
 141     env->version |= def->nwindows - 1;
 142 #endif
 143     return 0;
 144 }
 145
 146 SPARCCPU *cpu_sparc_init(const char *cpu_model)
 147 {
 148     SPARCCPU *cpu;
 149
 150     cpu = SPARC_CPU(object_new(TYPE_SPARC_CPU));
 151
 152     if (cpu_sparc_register(cpu, cpu_model) < 0) {
 153         object_unref(OBJECT(cpu));
 154         return NULL;
 155     }
 156
 157     object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
 158
 159     return cpu;
 160 }
 161
 162 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu)
 163 {
 164 #if !defined(TARGET_SPARC64)
 165     env->mxccregs[7] = ((cpu + 8) & 0xf) << 24;
 166 #endif
 167 }
 168
 169 static const sparc_def_t sparc_defs[] = {
 170 #ifdef TARGET_SPARC64
 171     {
 172         .name = "Fujitsu Sparc64",
 173         .iu_version = ((0x04ULL << 48) | (0x02ULL << 32) | (0ULL << 24)),
 174         .fpu_version = 0x00000000,
 175         .mmu_version = mmu_us_12,
 176         .nwindows = 4,
 177         .maxtl = 4,
 178         .features = CPU_DEFAULT_FEATURES,
 179     },
 180     {
 181         .name = "Fujitsu Sparc64 III",
 182         .iu_version = ((0x04ULL << 48) | (0x03ULL << 32) | (0ULL << 24)),
 183         .fpu_version = 0x00000000,
 184         .mmu_version = mmu_us_12,
 185         .nwindows = 5,
 186         .maxtl = 4,
 187         .features = CPU_DEFAULT_FEATURES,
 188     },
 189     {
 190         .name = "Fujitsu Sparc64 IV",
 191         .iu_version = ((0x04ULL << 48) | (0x04ULL << 32) | (0ULL << 24)),
 192         .fpu_version = 0x00000000,
 193         .mmu_version = mmu_us_12,
 194         .nwindows = 8,
 195         .maxtl = 5,
 196         .features = CPU_DEFAULT_FEATURES,
 197     },
 198     {
 199         .name = "Fujitsu Sparc64 V",
 200         .iu_version = ((0x04ULL << 48) | (0x05ULL << 32) | (0x51ULL << 24)),
 201         .fpu_version = 0x00000000,
 202         .mmu_version = mmu_us_12,
 203         .nwindows = 8,
 204         .maxtl = 5,
 205         .features = CPU_DEFAULT_FEATURES,
 206     },
 207     {
 208         .name = "TI UltraSparc I",
 209         .iu_version = ((0x17ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
 210         .fpu_version = 0x00000000,
 211         .mmu_version = mmu_us_12,
 212         .nwindows = 8,
 213         .maxtl = 5,
 214         .features = CPU_DEFAULT_FEATURES,
 215     },
 216     {
 217         .name = "TI UltraSparc II",
 218         .iu_version = ((0x17ULL << 48) | (0x11ULL << 32) | (0x20ULL << 24)),
 219         .fpu_version = 0x00000000,
 220         .mmu_version = mmu_us_12,
 221         .nwindows = 8,
 222         .maxtl = 5,
 223         .features = CPU_DEFAULT_FEATURES,
 224     },
 225     {
 226         .name = "TI UltraSparc IIi",
 227         .iu_version = ((0x17ULL << 48) | (0x12ULL << 32) | (0x91ULL << 24)),
 228         .fpu_version = 0x00000000,
 229         .mmu_version = mmu_us_12,
 230         .nwindows = 8,
 231         .maxtl = 5,
 232         .features = CPU_DEFAULT_FEATURES,
 233     },
 234     {
 235         .name = "TI UltraSparc IIe",
 236         .iu_version = ((0x17ULL << 48) | (0x13ULL << 32) | (0x14ULL << 24)),
 237         .fpu_version = 0x00000000,
 238         .mmu_version = mmu_us_12,
 239         .nwindows = 8,
 240         .maxtl = 5,
 241         .features = CPU_DEFAULT_FEATURES,
 242     },
 243     {
 244         .name = "Sun UltraSparc III",
 245         .iu_version = ((0x3eULL << 48) | (0x14ULL << 32) | (0x34ULL << 24)),
 246         .fpu_version = 0x00000000,
 247         .mmu_version = mmu_us_12,
 248         .nwindows = 8,
 249         .maxtl = 5,
 250         .features = CPU_DEFAULT_FEATURES,
 251     },
 252     {
 253         .name = "Sun UltraSparc III Cu",
 254         .iu_version = ((0x3eULL << 48) | (0x15ULL << 32) | (0x41ULL << 24)),
 255         .fpu_version = 0x00000000,
 256         .mmu_version = mmu_us_3,
 257         .nwindows = 8,
 258         .maxtl = 5,
 259         .features = CPU_DEFAULT_FEATURES,
 260     },
 261     {
 262         .name = "Sun UltraSparc IIIi",
 263         .iu_version = ((0x3eULL << 48) | (0x16ULL << 32) | (0x34ULL << 24)),
 264         .fpu_version = 0x00000000,
 265         .mmu_version = mmu_us_12,
 266         .nwindows = 8,
 267         .maxtl = 5,
 268         .features = CPU_DEFAULT_FEATURES,
 269     },
 270     {
 271         .name = "Sun UltraSparc IV",
 272         .iu_version = ((0x3eULL << 48) | (0x18ULL << 32) | (0x31ULL << 24)),
 273         .fpu_version = 0x00000000,
 274         .mmu_version = mmu_us_4,
 275         .nwindows = 8,
 276         .maxtl = 5,
 277         .features = CPU_DEFAULT_FEATURES,
 278     },
 279     {
 280         .name = "Sun UltraSparc IV+",
 281         .iu_version = ((0x3eULL << 48) | (0x19ULL << 32) | (0x22ULL << 24)),
 282         .fpu_version = 0x00000000,
 283         .mmu_version = mmu_us_12,
 284         .nwindows = 8,
 285         .maxtl = 5,
 286         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_CMT,
 287     },
 288     {
 289         .name = "Sun UltraSparc IIIi+",
 290         .iu_version = ((0x3eULL << 48) | (0x22ULL << 32) | (0ULL << 24)),
 291         .fpu_version = 0x00000000,
 292         .mmu_version = mmu_us_3,
 293         .nwindows = 8,
 294         .maxtl = 5,
 295         .features = CPU_DEFAULT_FEATURES,
 296     },
 297     {
 298         .name = "Sun UltraSparc T1",
 299         /* defined in sparc_ifu_fdp.v and ctu.h */
 300         .iu_version = ((0x3eULL << 48) | (0x23ULL << 32) | (0x02ULL << 24)),
 301         .fpu_version = 0x00000000,
 302         .mmu_version = mmu_sun4v,
 303         .nwindows = 8,
 304         .maxtl = 6,
 305         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
 306         | CPU_FEATURE_GL,
 307     },
 308     {
 309         .name = "Sun UltraSparc T2",
 310         /* defined in tlu_asi_ctl.v and n2_revid_cust.v */
 311         .iu_version = ((0x3eULL << 48) | (0x24ULL << 32) | (0x02ULL << 24)),
 312         .fpu_version = 0x00000000,
 313         .mmu_version = mmu_sun4v,
 314         .nwindows = 8,
 315         .maxtl = 6,
 316         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
 317         | CPU_FEATURE_GL,
 318     },
 319     {
 320         .name = "NEC UltraSparc I",
 321         .iu_version = ((0x22ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
 322         .fpu_version = 0x00000000,
 323         .mmu_version = mmu_us_12,
 324         .nwindows = 8,
 325         .maxtl = 5,
 326         .features = CPU_DEFAULT_FEATURES,
 327     },
 328 #else
 329     {
 330         .name = "Fujitsu MB86904",
 331         .iu_version = 0x04 << 24, /* Impl 0, ver 4 */
 332         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
 333         .mmu_version = 0x04 << 24, /* Impl 0, ver 4 */
 334         .mmu_bm = 0x00004000,
 335         .mmu_ctpr_mask = 0x00ffffc0,
 336         .mmu_cxr_mask = 0x000000ff,
 337         .mmu_sfsr_mask = 0x00016fff,
 338         .mmu_trcr_mask = 0x00ffffff,
 339         .nwindows = 8,
 340         .features = CPU_DEFAULT_FEATURES,
 341     },
 342     {
 343         .name = "Fujitsu MB86907",
 344         .iu_version = 0x05 << 24, /* Impl 0, ver 5 */
 345         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
 346         .mmu_version = 0x05 << 24, /* Impl 0, ver 5 */
 347         .mmu_bm = 0x00004000,
 348         .mmu_ctpr_mask = 0xffffffc0,
 349         .mmu_cxr_mask = 0x000000ff,
 350         .mmu_sfsr_mask = 0x00016fff,
 351         .mmu_trcr_mask = 0xffffffff,
 352         .nwindows = 8,
 353         .features = CPU_DEFAULT_FEATURES,
 354     },
 355     {
 356         .name = "TI MicroSparc I",
 357         .iu_version = 0x41000000,
 358         .fpu_version = 4 << 17,
 359         .mmu_version = 0x41000000,
 360         .mmu_bm = 0x00004000,
 361         .mmu_ctpr_mask = 0x007ffff0,
 362         .mmu_cxr_mask = 0x0000003f,
 363         .mmu_sfsr_mask = 0x00016fff,
 364         .mmu_trcr_mask = 0x0000003f,
 365         .nwindows = 7,
 366         .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_MUL |
 367         CPU_FEATURE_DIV | CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT |
 368         CPU_FEATURE_FMUL,
 369     },
 370     {
 371         .name = "TI MicroSparc II",
 372         .iu_version = 0x42000000,
 373         .fpu_version = 4 << 17,
 374         .mmu_version = 0x02000000,
 375         .mmu_bm = 0x00004000,
 376         .mmu_ctpr_mask = 0x00ffffc0,
 377         .mmu_cxr_mask = 0x000000ff,
 378         .mmu_sfsr_mask = 0x00016fff,
 379         .mmu_trcr_mask = 0x00ffffff,
 380         .nwindows = 8,
 381         .features = CPU_DEFAULT_FEATURES,
 382     },
 383     {
 384         .name = "TI MicroSparc IIep",
 385         .iu_version = 0x42000000,
 386         .fpu_version = 4 << 17,
 387         .mmu_version = 0x04000000,
 388         .mmu_bm = 0x00004000,
 389         .mmu_ctpr_mask = 0x00ffffc0,
 390         .mmu_cxr_mask = 0x000000ff,
 391         .mmu_sfsr_mask = 0x00016bff,
 392         .mmu_trcr_mask = 0x00ffffff,
 393         .nwindows = 8,
 394         .features = CPU_DEFAULT_FEATURES,
 395     },
 396     {
 397         .name = "TI SuperSparc 40", /* STP1020NPGA */
 398         .iu_version = 0x41000000, /* SuperSPARC 2.x */
 399         .fpu_version = 0 << 17,
 400         .mmu_version = 0x00000800, /* SuperSPARC 2.x, no MXCC */
 401         .mmu_bm = 0x00002000,
 402         .mmu_ctpr_mask = 0xffffffc0,
 403         .mmu_cxr_mask = 0x0000ffff,
 404         .mmu_sfsr_mask = 0xffffffff,
 405         .mmu_trcr_mask = 0xffffffff,
 406         .nwindows = 8,
 407         .features = CPU_DEFAULT_FEATURES,
 408     },
 409     {
 410         .name = "TI SuperSparc 50", /* STP1020PGA */
 411         .iu_version = 0x40000000, /* SuperSPARC 3.x */
 412         .fpu_version = 0 << 17,
 413         .mmu_version = 0x01000800, /* SuperSPARC 3.x, no MXCC */
 414         .mmu_bm = 0x00002000,
 415         .mmu_ctpr_mask = 0xffffffc0,
 416         .mmu_cxr_mask = 0x0000ffff,
 417         .mmu_sfsr_mask = 0xffffffff,
 418         .mmu_trcr_mask = 0xffffffff,
 419         .nwindows = 8,
 420         .features = CPU_DEFAULT_FEATURES,
 421     },
 422     {
 423         .name = "TI SuperSparc 51",
 424         .iu_version = 0x40000000, /* SuperSPARC 3.x */
 425         .fpu_version = 0 << 17,
 426         .mmu_version = 0x01000000, /* SuperSPARC 3.x, MXCC */
 427         .mmu_bm = 0x00002000,
 428         .mmu_ctpr_mask = 0xffffffc0,
 429         .mmu_cxr_mask = 0x0000ffff,
 430         .mmu_sfsr_mask = 0xffffffff,
 431         .mmu_trcr_mask = 0xffffffff,
 432         .mxcc_version = 0x00000104,
 433         .nwindows = 8,
 434         .features = CPU_DEFAULT_FEATURES,
 435     },
 436     {
 437         .name = "TI SuperSparc 60", /* STP1020APGA */
 438         .iu_version = 0x40000000, /* SuperSPARC 3.x */
 439         .fpu_version = 0 << 17,
 440         .mmu_version = 0x01000800, /* SuperSPARC 3.x, no MXCC */
 441         .mmu_bm = 0x00002000,
 442         .mmu_ctpr_mask = 0xffffffc0,
 443         .mmu_cxr_mask = 0x0000ffff,
 444         .mmu_sfsr_mask = 0xffffffff,
 445         .mmu_trcr_mask = 0xffffffff,
 446         .nwindows = 8,
 447         .features = CPU_DEFAULT_FEATURES,
 448     },
 449     {
 450         .name = "TI SuperSparc 61",
 451         .iu_version = 0x44000000, /* SuperSPARC 3.x */
 452         .fpu_version = 0 << 17,
 453         .mmu_version = 0x01000000, /* SuperSPARC 3.x, MXCC */
 454         .mmu_bm = 0x00002000,
 455         .mmu_ctpr_mask = 0xffffffc0,
 456         .mmu_cxr_mask = 0x0000ffff,
 457         .mmu_sfsr_mask = 0xffffffff,
 458         .mmu_trcr_mask = 0xffffffff,
 459         .mxcc_version = 0x00000104,
 460         .nwindows = 8,
 461         .features = CPU_DEFAULT_FEATURES,
 462     },
 463     {
 464         .name = "TI SuperSparc II",
 465         .iu_version = 0x40000000, /* SuperSPARC II 1.x */
 466         .fpu_version = 0 << 17,
 467         .mmu_version = 0x08000000, /* SuperSPARC II 1.x, MXCC */
 468         .mmu_bm = 0x00002000,
 469         .mmu_ctpr_mask = 0xffffffc0,
 470         .mmu_cxr_mask = 0x0000ffff,
 471         .mmu_sfsr_mask = 0xffffffff,
 472         .mmu_trcr_mask = 0xffffffff,
 473         .mxcc_version = 0x00000104,
 474         .nwindows = 8,
 475         .features = CPU_DEFAULT_FEATURES,
 476     },
 477     {
 478         .name = "LEON2",
 479         .iu_version = 0xf2000000,
 480         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
 481         .mmu_version = 0xf2000000,
 482         .mmu_bm = 0x00004000,
 483         .mmu_ctpr_mask = 0x007ffff0,
 484         .mmu_cxr_mask = 0x0000003f,
 485         .mmu_sfsr_mask = 0xffffffff,
 486         .mmu_trcr_mask = 0xffffffff,
 487         .nwindows = 8,
 488         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN,
 489     },
 490     {
 491         .name = "LEON3",
 492         .iu_version = 0xf3000000,
 493         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
 494         .mmu_version = 0xf3000000,
 495         .mmu_bm = 0x00000000,
 496         .mmu_ctpr_mask = 0xfffffffc,
 497         .mmu_cxr_mask = 0x000000ff,
 498         .mmu_sfsr_mask = 0xffffffff,
 499         .mmu_trcr_mask = 0xffffffff,
 500         .nwindows = 8,
 501         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN |
 502         CPU_FEATURE_ASR17 | CPU_FEATURE_CACHE_CTRL | CPU_FEATURE_POWERDOWN |
 503         CPU_FEATURE_CASA,
 504     },
 505 #endif
 506 };
 507
 508 static const char * const feature_name[] = {
 509     "float",
 510     "float128",
 511     "swap",
 512     "mul",
 513     "div",
 514     "flush",
 515     "fsqrt",
 516     "fmul",
 517     "vis1",
 518     "vis2",
 519     "fsmuld",
 520     "hypv",
 521     "cmt",
 522     "gl",
 523 };
 524
 525 static void print_features(FILE *f, fprintf_function cpu_fprintf,
 526                            uint32_t features, const char *prefix)
 527 {
 528     unsigned int i;
 529
 530     for (i = 0; i < ARRAY_SIZE(feature_name); i++) {
 531         if (feature_name[i] && (features & (1 << i))) {
 532             if (prefix) {
 533                 (*cpu_fprintf)(f, "%s", prefix);
 534             }
 535             (*cpu_fprintf)(f, "%s ", feature_name[i]);
 536         }
 537     }
 538 }
 539
 540 static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features)
 541 {
 542     unsigned int i;
 543
 544     for (i = 0; i < ARRAY_SIZE(feature_name); i++) {
 545         if (feature_name[i] && !strcmp(flagname, feature_name[i])) {
 546             *features |= 1 << i;
 547             return;
 548         }
 549     }
 550     error_report("CPU feature %s not found", flagname);
 551 }
 552
 553 static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *name)
 554 {
 555     unsigned int i;
 556     const sparc_def_t *def = NULL;
 557
 558     for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
 559         if (strcasecmp(name, sparc_defs[i].name) == 0) {
 560             def = &sparc_defs[i];
 561         }
 562     }
 563     if (!def) {
 564         return -1;
 565     }
 566     memcpy(cpu_def, def, sizeof(*def));
 567     return 0;
 568 }
 569
 570 static void sparc_cpu_parse_features(CPUState *cs, char *features,
 571                                      Error **errp)
 572 {
 573     SPARCCPU *cpu = SPARC_CPU(cs);
 574     sparc_def_t *cpu_def = cpu->env.def;
 575     char *featurestr;
 576     uint32_t plus_features = 0;
 577     uint32_t minus_features = 0;
 578     uint64_t iu_version;
 579     uint32_t fpu_version, mmu_version, nwindows;
 580
 581     featurestr = features ? strtok(features, ",") : NULL;
 582     while (featurestr) {
 583         char *val;
 584
 585         if (featurestr[0] == '+') {
 586             add_flagname_to_bitmaps(featurestr + 1, &plus_features);
 587         } else if (featurestr[0] == '-') {
 588             add_flagname_to_bitmaps(featurestr + 1, &minus_features);
 589         } else if ((val = strchr(featurestr, '='))) {
 590             *val = 0; val++;
 591             if (!strcmp(featurestr, "iu_version")) {
 592                 char *err;
 593
 594                 iu_version = strtoll(val, &err, 0);
 595                 if (!*val || *err) {
 596                     error_setg(errp, "bad numerical value %s", val);
 597                     return;
 598                 }
 599                 cpu_def->iu_version = iu_version;
 600 #ifdef DEBUG_FEATURES
 601                 fprintf(stderr, "iu_version %" PRIx64 "\n", iu_version);
 602 #endif
 603             } else if (!strcmp(featurestr, "fpu_version")) {
 604                 char *err;
 605
 606                 fpu_version = strtol(val, &err, 0);
 607                 if (!*val || *err) {
 608                     error_setg(errp, "bad numerical value %s", val);
 609                     return;
 610                 }
 611                 cpu_def->fpu_version = fpu_version;
 612 #ifdef DEBUG_FEATURES
 613                 fprintf(stderr, "fpu_version %x\n", fpu_version);
 614 #endif
 615             } else if (!strcmp(featurestr, "mmu_version")) {
 616                 char *err;
 617
 618                 mmu_version = strtol(val, &err, 0);
 619                 if (!*val || *err) {
 620                     error_setg(errp, "bad numerical value %s", val);
 621                     return;
 622                 }
 623                 cpu_def->mmu_version = mmu_version;
 624 #ifdef DEBUG_FEATURES
 625                 fprintf(stderr, "mmu_version %x\n", mmu_version);
 626 #endif
 627             } else if (!strcmp(featurestr, "nwindows")) {
 628                 char *err;
 629
 630                 nwindows = strtol(val, &err, 0);
 631                 if (!*val || *err || nwindows > MAX_NWINDOWS ||
 632                     nwindows < MIN_NWINDOWS) {
 633                     error_setg(errp, "bad numerical value %s", val);
 634                     return;
 635                 }
 636                 cpu_def->nwindows = nwindows;
 637 #ifdef DEBUG_FEATURES
 638                 fprintf(stderr, "nwindows %d\n", nwindows);
 639 #endif
 640             } else {
 641                 error_setg(errp, "unrecognized feature %s", featurestr);
 642                 return;
 643             }
 644         } else {
 645             error_setg(errp, "feature string `%s' not in format "
 646                              "(+feature|-feature|feature=xyz)", featurestr);
 647             return;
 648         }
 649         featurestr = strtok(NULL, ",");
 650     }
 651     cpu_def->features |= plus_features;
 652     cpu_def->features &= ~minus_features;
 653 #ifdef DEBUG_FEATURES
 654     print_features(stderr, fprintf, cpu_def->features, NULL);
 655 #endif
 656 }
 657
 658 void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf)
 659 {
 660     unsigned int i;
 661
 662     for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
 663         (*cpu_fprintf)(f, "Sparc %16s IU " TARGET_FMT_lx
 664                        " FPU %08x MMU %08x NWINS %d ",
 665                        sparc_defs[i].name,
 666                        sparc_defs[i].iu_version,
 667                        sparc_defs[i].fpu_version,
 668                        sparc_defs[i].mmu_version,
 669                        sparc_defs[i].nwindows);
 670         print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES &
 671                        ~sparc_defs[i].features, "-");
 672         print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES &
 673                        sparc_defs[i].features, "+");
 674         (*cpu_fprintf)(f, "\n");
 675     }
 676     (*cpu_fprintf)(f, "Default CPU feature flags (use '-' to remove): ");
 677     print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES, NULL);
 678     (*cpu_fprintf)(f, "\n");
 679     (*cpu_fprintf)(f, "Available CPU feature flags (use '+' to add): ");
 680     print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES, NULL);
 681     (*cpu_fprintf)(f, "\n");
 682     (*cpu_fprintf)(f, "Numerical features (use '=' to set): iu_version "
 683                    "fpu_version mmu_version nwindows\n");
 684 }
 685
 686 static void cpu_print_cc(FILE *f, fprintf_function cpu_fprintf,
 687                          uint32_t cc)
 688 {
 689     cpu_fprintf(f, "%c%c%c%c", cc & PSR_NEG ? 'N' : '-',
 690                 cc & PSR_ZERO ? 'Z' : '-', cc & PSR_OVF ? 'V' : '-',
 691                 cc & PSR_CARRY ? 'C' : '-');
 692 }
 693
 694 #ifdef TARGET_SPARC64
 695 #define REGS_PER_LINE 4
 696 #else
 697 #define REGS_PER_LINE 8
 698 #endif
 699
 700 void sparc_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
 701                           int flags)
 702 {
 703     SPARCCPU *cpu = SPARC_CPU(cs);
 704     CPUSPARCState *env = &cpu->env;
 705     int i, x;
 706
 707     cpu_fprintf(f, "pc: " TARGET_FMT_lx "  npc: " TARGET_FMT_lx "\n", env->pc,
 708                 env->npc);
 709
 710     for (i = 0; i < 8; i++) {
 711         if (i % REGS_PER_LINE == 0) {
 712             cpu_fprintf(f, "%%g%d-%d:", i, i + REGS_PER_LINE - 1);
 713         }
 714         cpu_fprintf(f, " " TARGET_FMT_lx, env->gregs[i]);
 715         if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
 716             cpu_fprintf(f, "\n");
 717         }
 718     }
 719     for (x = 0; x < 3; x++) {
 720         for (i = 0; i < 8; i++) {
 721             if (i % REGS_PER_LINE == 0) {
 722                 cpu_fprintf(f, "%%%c%d-%d: ",
 723                             x == 0 ? 'o' : (x == 1 ? 'l' : 'i'),
 724                             i, i + REGS_PER_LINE - 1);
 725             }
 726             cpu_fprintf(f, TARGET_FMT_lx " ", env->regwptr[i + x * 8]);
 727             if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
 728                 cpu_fprintf(f, "\n");
 729             }
 730         }
 731     }
 732
 733     for (i = 0; i < TARGET_DPREGS; i++) {
 734         if ((i & 3) == 0) {
 735             cpu_fprintf(f, "%%f%02d: ", i * 2);
 736         }
 737         cpu_fprintf(f, " %016" PRIx64, env->fpr[i].ll);
 738         if ((i & 3) == 3) {
 739             cpu_fprintf(f, "\n");
 740         }
 741     }
 742 #ifdef TARGET_SPARC64
 743     cpu_fprintf(f, "pstate: %08x ccr: %02x (icc: ", env->pstate,
 744                 (unsigned)cpu_get_ccr(env));
 745     cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << PSR_CARRY_SHIFT);
 746     cpu_fprintf(f, " xcc: ");
 747     cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << (PSR_CARRY_SHIFT - 4));
 748     cpu_fprintf(f, ") asi: %02x tl: %d pil: %x\n", env->asi, env->tl,
 749                 env->psrpil);
 750     cpu_fprintf(f, "cansave: %d canrestore: %d otherwin: %d wstate: %d "
 751                 "cleanwin: %d cwp: %d\n",
 752                 env->cansave, env->canrestore, env->otherwin, env->wstate,
 753                 env->cleanwin, env->nwindows - 1 - env->cwp);
 754     cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx " fprs: "
 755                 TARGET_FMT_lx "\n", env->fsr, env->y, env->fprs);
 756 #else
 757     cpu_fprintf(f, "psr: %08x (icc: ", cpu_get_psr(env));
 758     cpu_print_cc(f, cpu_fprintf, cpu_get_psr(env));
 759     cpu_fprintf(f, " SPE: %c%c%c) wim: %08x\n", env->psrs ? 'S' : '-',
 760                 env->psrps ? 'P' : '-', env->psret ? 'E' : '-',
 761                 env->wim);
 762     cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx "\n",
 763                 env->fsr, env->y);
 764 #endif
 765     cpu_fprintf(f, "\n");
 766 }
 767
 768 static void sparc_cpu_set_pc(CPUState *cs, vaddr value)
 769 {
 770     SPARCCPU *cpu = SPARC_CPU(cs);
 771
 772     cpu->env.pc = value;
 773     cpu->env.npc = value + 4;
 774 }
 775
 776 static void sparc_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
 777 {
 778     SPARCCPU *cpu = SPARC_CPU(cs);
 779
 780     cpu->env.pc = tb->pc;
 781     cpu->env.npc = tb->cs_base;
 782 }
 783
 784 static bool sparc_cpu_has_work(CPUState *cs)
 785 {
 786     SPARCCPU *cpu = SPARC_CPU(cs);
 787     CPUSPARCState *env = &cpu->env;
 788
 789     return (cs->interrupt_request & CPU_INTERRUPT_HARD) &&
 790            cpu_interrupts_enabled(env);
 791 }
 792
 793 static void sparc_cpu_realizefn(DeviceState *dev, Error **errp)
 794 {
 795     SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(dev);
 796 #if defined(CONFIG_USER_ONLY)
 797     SPARCCPU *cpu = SPARC_CPU(dev);
 798     CPUSPARCState *env = &cpu->env;
 799
 800     if ((env->def->features & CPU_FEATURE_FLOAT)) {
 801         env->def->features |= CPU_FEATURE_FLOAT128;
 802     }
 803 #endif
 804
 805     qemu_init_vcpu(CPU(dev));
 806
 807     scc->parent_realize(dev, errp);
 808 }
 809
 810 static void sparc_cpu_initfn(Object *obj)
 811 {
 812     CPUState *cs = CPU(obj);
 813     SPARCCPU *cpu = SPARC_CPU(obj);
 814     CPUSPARCState *env = &cpu->env;
 815
 816     cs->env_ptr = env;
 817     cpu_exec_init(cs, &error_abort);
 818
 819     if (tcg_enabled()) {
 820         gen_intermediate_code_init(env);
 821     }
 822 }
 823
 824 static void sparc_cpu_uninitfn(Object *obj)
 825 {
 826     SPARCCPU *cpu = SPARC_CPU(obj);
 827     CPUSPARCState *env = &cpu->env;
 828
 829     g_free(env->def);
 830 }
 831
 832 static void sparc_cpu_class_init(ObjectClass *oc, void *data)
 833 {
 834     SPARCCPUClass *scc = SPARC_CPU_CLASS(oc);
 835     CPUClass *cc = CPU_CLASS(oc);
 836     DeviceClass *dc = DEVICE_CLASS(oc);
 837
 838     scc->parent_realize = dc->realize;
 839     dc->realize = sparc_cpu_realizefn;
 840
 841     scc->parent_reset = cc->reset;
 842     cc->reset = sparc_cpu_reset;
 843
 844     cc->has_work = sparc_cpu_has_work;
 845     cc->do_interrupt = sparc_cpu_do_interrupt;
 846     cc->cpu_exec_interrupt = sparc_cpu_exec_interrupt;
 847     cc->dump_state = sparc_cpu_dump_state;
 848 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
 849     cc->memory_rw_debug = sparc_cpu_memory_rw_debug;
 850 #endif
 851     cc->set_pc = sparc_cpu_set_pc;
 852     cc->synchronize_from_tb = sparc_cpu_synchronize_from_tb;
 853     cc->gdb_read_register = sparc_cpu_gdb_read_register;
 854     cc->gdb_write_register = sparc_cpu_gdb_write_register;
 855 #ifdef CONFIG_USER_ONLY
 856     cc->handle_mmu_fault = sparc_cpu_handle_mmu_fault;
 857 #else
 858     cc->do_unassigned_access = sparc_cpu_unassigned_access;
 859     cc->do_unaligned_access = sparc_cpu_do_unaligned_access;
 860     cc->get_phys_page_debug = sparc_cpu_get_phys_page_debug;
 861     cc->vmsd = &vmstate_sparc_cpu;
 862 #endif
 863     cc->disas_set_info = cpu_sparc_disas_set_info;
 864
 865 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
 866     cc->gdb_num_core_regs = 86;
 867 #else
 868     cc->gdb_num_core_regs = 72;
 869 #endif
 870
 871     /*
 872      * Reason: sparc_cpu_initfn() calls cpu_exec_init(), which saves
 873      * the object in cpus -> dangling pointer after final
 874      * object_unref().
 875      */
 876     dc->cannot_destroy_with_object_finalize_yet = true;
 877 }
 878
 879 static const TypeInfo sparc_cpu_type_info = {
 880     .name = TYPE_SPARC_CPU,
 881     .parent = TYPE_CPU,
 882     .instance_size = sizeof(SPARCCPU),
 883     .instance_init = sparc_cpu_initfn,
 884     .instance_finalize = sparc_cpu_uninitfn,
 885     .abstract = false,
 886     .class_size = sizeof(SPARCCPUClass),
 887     .class_init = sparc_cpu_class_init,
 888 };
 889
 890 static void sparc_cpu_register_types(void)
 891 {
 892     type_register_static(&sparc_cpu_type_info);
 893 }
 894
 895 type_init(sparc_cpu_register_types)