target/ppc/mmu_helper.c

   1 /*
   2  *  PowerPC MMU, TLB, SLB and BAT emulation helpers for QEMU.
   3  *
   4  *  Copyright (c) 2003-2007 Jocelyn Mayer
   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 2.1 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 "qemu/units.h"
  22 #include "cpu.h"
  23 #include "sysemu/kvm.h"
  24 #include "kvm_ppc.h"
  25 #include "mmu-hash64.h"
  26 #include "mmu-hash32.h"
  27 #include "exec/exec-all.h"
  28 #include "exec/page-protection.h"
  29 #include "exec/log.h"
  30 #include "helper_regs.h"
  31 #include "qemu/error-report.h"
  32 #include "qemu/qemu-print.h"
  33 #include "internal.h"
  34 #include "mmu-book3s-v3.h"
  35 #include "mmu-radix64.h"
  36 #include "mmu-booke.h"
  37 #include "exec/helper-proto.h"
  38 #include "exec/cpu_ldst.h"
  39
  40 /* #define FLUSH_ALL_TLBS */
  41
  42 /*****************************************************************************/
  43 /* PowerPC MMU emulation */
  44
  45 /* Software driven TLB helpers */
  46 static inline void ppc6xx_tlb_invalidate_all(CPUPPCState *env)
  47 {
  48     ppc6xx_tlb_t *tlb;
  49     int nr, max = 2 * env->nb_tlb;
  50
  51     for (nr = 0; nr < max; nr++) {
  52         tlb = &env->tlb.tlb6[nr];
  53         pte_invalidate(&tlb->pte0);
  54     }
  55     tlb_flush(env_cpu(env));
  56 }
  57
  58 static inline void ppc6xx_tlb_invalidate_virt2(CPUPPCState *env,
  59                                                target_ulong eaddr,
  60                                                int is_code, int match_epn)
  61 {
  62 #if !defined(FLUSH_ALL_TLBS)
  63     CPUState *cs = env_cpu(env);
  64     ppc6xx_tlb_t *tlb;
  65     int way, nr;
  66
  67     /* Invalidate ITLB + DTLB, all ways */
  68     for (way = 0; way < env->nb_ways; way++) {
  69         nr = ppc6xx_tlb_getnum(env, eaddr, way, is_code);
  70         tlb = &env->tlb.tlb6[nr];
  71         if (pte_is_valid(tlb->pte0) && (match_epn == 0 || eaddr == tlb->EPN)) {
  72             qemu_log_mask(CPU_LOG_MMU, "TLB invalidate %d/%d "
  73                           TARGET_FMT_lx "\n", nr, env->nb_tlb, eaddr);
  74             pte_invalidate(&tlb->pte0);
  75             tlb_flush_page(cs, tlb->EPN);
  76         }
  77     }
  78 #else
  79     /* XXX: PowerPC specification say this is valid as well */
  80     ppc6xx_tlb_invalidate_all(env);
  81 #endif
  82 }
  83
  84 static inline void ppc6xx_tlb_invalidate_virt(CPUPPCState *env,
  85                                               target_ulong eaddr, int is_code)
  86 {
  87     ppc6xx_tlb_invalidate_virt2(env, eaddr, is_code, 0);
  88 }
  89
  90 static void ppc6xx_tlb_store(CPUPPCState *env, target_ulong EPN, int way,
  91                              int is_code, target_ulong pte0, target_ulong pte1)
  92 {
  93     ppc6xx_tlb_t *tlb;
  94     int nr;
  95
  96     nr = ppc6xx_tlb_getnum(env, EPN, way, is_code);
  97     tlb = &env->tlb.tlb6[nr];
  98     qemu_log_mask(CPU_LOG_MMU, "Set TLB %d/%d EPN " TARGET_FMT_lx " PTE0 "
  99                   TARGET_FMT_lx " PTE1 " TARGET_FMT_lx "\n", nr, env->nb_tlb,
 100                   EPN, pte0, pte1);
 101     /* Invalidate any pending reference in QEMU for this virtual address */
 102     ppc6xx_tlb_invalidate_virt2(env, EPN, is_code, 1);
 103     tlb->pte0 = pte0;
 104     tlb->pte1 = pte1;
 105     tlb->EPN = EPN;
 106     /* Store last way for LRU mechanism */
 107     env->last_way = way;
 108 }
 109
 110 /* Helpers specific to PowerPC 40x implementations */
 111 static inline void ppc4xx_tlb_invalidate_all(CPUPPCState *env)
 112 {
 113     ppcemb_tlb_t *tlb;
 114     int i;
 115
 116     for (i = 0; i < env->nb_tlb; i++) {
 117         tlb = &env->tlb.tlbe[i];
 118         tlb->prot &= ~PAGE_VALID;
 119     }
 120     tlb_flush(env_cpu(env));
 121 }
 122
 123 static void booke206_flush_tlb(CPUPPCState *env, int flags,
 124                                const int check_iprot)
 125 {
 126     int tlb_size;
 127     int i, j;
 128     ppcmas_tlb_t *tlb = env->tlb.tlbm;
 129
 130     for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
 131         if (flags & (1 << i)) {
 132             tlb_size = booke206_tlb_size(env, i);
 133             for (j = 0; j < tlb_size; j++) {
 134                 if (!check_iprot || !(tlb[j].mas1 & MAS1_IPROT)) {
 135                     tlb[j].mas1 &= ~MAS1_VALID;
 136                 }
 137             }
 138         }
 139         tlb += booke206_tlb_size(env, i);
 140     }
 141
 142     tlb_flush(env_cpu(env));
 143 }
 144
 145 /*****************************************************************************/
 146 /* BATs management */
 147 #if !defined(FLUSH_ALL_TLBS)
 148 static inline void do_invalidate_BAT(CPUPPCState *env, target_ulong BATu,
 149                                      target_ulong mask)
 150 {
 151     CPUState *cs = env_cpu(env);
 152     target_ulong base, end, page;
 153
 154     base = BATu & ~0x0001FFFF;
 155     end = base + mask + 0x00020000;
 156     if (((end - base) >> TARGET_PAGE_BITS) > 1024) {
 157         /* Flushing 1024 4K pages is slower than a complete flush */
 158         qemu_log_mask(CPU_LOG_MMU, "Flush all BATs\n");
 159         tlb_flush(cs);
 160         qemu_log_mask(CPU_LOG_MMU, "Flush done\n");
 161         return;
 162     }
 163     qemu_log_mask(CPU_LOG_MMU, "Flush BAT from " TARGET_FMT_lx
 164                   " to " TARGET_FMT_lx " (" TARGET_FMT_lx ")\n",
 165                   base, end, mask);
 166     for (page = base; page != end; page += TARGET_PAGE_SIZE) {
 167         tlb_flush_page(cs, page);
 168     }
 169     qemu_log_mask(CPU_LOG_MMU, "Flush done\n");
 170 }
 171 #endif
 172
 173 static inline void dump_store_bat(CPUPPCState *env, char ID, int ul, int nr,
 174                                   target_ulong value)
 175 {
 176     qemu_log_mask(CPU_LOG_MMU, "Set %cBAT%d%c to " TARGET_FMT_lx " ("
 177                   TARGET_FMT_lx ")\n", ID, nr, ul == 0 ? 'u' : 'l',
 178                   value, env->nip);
 179 }
 180
 181 void helper_store_ibatu(CPUPPCState *env, uint32_t nr, target_ulong value)
 182 {
 183     target_ulong mask;
 184
 185     dump_store_bat(env, 'I', 0, nr, value);
 186     if (env->IBAT[0][nr] != value) {
 187         mask = (value << 15) & 0x0FFE0000UL;
 188 #if !defined(FLUSH_ALL_TLBS)
 189         do_invalidate_BAT(env, env->IBAT[0][nr], mask);
 190 #endif
 191         /*
 192          * When storing valid upper BAT, mask BEPI and BRPN and
 193          * invalidate all TLBs covered by this BAT
 194          */
 195         mask = (value << 15) & 0x0FFE0000UL;
 196         env->IBAT[0][nr] = (value & 0x00001FFFUL) |
 197             (value & ~0x0001FFFFUL & ~mask);
 198         env->IBAT[1][nr] = (env->IBAT[1][nr] & 0x0000007B) |
 199             (env->IBAT[1][nr] & ~0x0001FFFF & ~mask);
 200 #if !defined(FLUSH_ALL_TLBS)
 201         do_invalidate_BAT(env, env->IBAT[0][nr], mask);
 202 #else
 203         tlb_flush(env_cpu(env));
 204 #endif
 205     }
 206 }
 207
 208 void helper_store_ibatl(CPUPPCState *env, uint32_t nr, target_ulong value)
 209 {
 210     dump_store_bat(env, 'I', 1, nr, value);
 211     env->IBAT[1][nr] = value;
 212 }
 213
 214 void helper_store_dbatu(CPUPPCState *env, uint32_t nr, target_ulong value)
 215 {
 216     target_ulong mask;
 217
 218     dump_store_bat(env, 'D', 0, nr, value);
 219     if (env->DBAT[0][nr] != value) {
 220         /*
 221          * When storing valid upper BAT, mask BEPI and BRPN and
 222          * invalidate all TLBs covered by this BAT
 223          */
 224         mask = (value << 15) & 0x0FFE0000UL;
 225 #if !defined(FLUSH_ALL_TLBS)
 226         do_invalidate_BAT(env, env->DBAT[0][nr], mask);
 227 #endif
 228         mask = (value << 15) & 0x0FFE0000UL;
 229         env->DBAT[0][nr] = (value & 0x00001FFFUL) |
 230             (value & ~0x0001FFFFUL & ~mask);
 231         env->DBAT[1][nr] = (env->DBAT[1][nr] & 0x0000007B) |
 232             (env->DBAT[1][nr] & ~0x0001FFFF & ~mask);
 233 #if !defined(FLUSH_ALL_TLBS)
 234         do_invalidate_BAT(env, env->DBAT[0][nr], mask);
 235 #else
 236         tlb_flush(env_cpu(env));
 237 #endif
 238     }
 239 }
 240
 241 void helper_store_dbatl(CPUPPCState *env, uint32_t nr, target_ulong value)
 242 {
 243     dump_store_bat(env, 'D', 1, nr, value);
 244     env->DBAT[1][nr] = value;
 245 }
 246
 247 /*****************************************************************************/
 248 /* TLB management */
 249 void ppc_tlb_invalidate_all(CPUPPCState *env)
 250 {
 251 #if defined(TARGET_PPC64)
 252     if (mmu_is_64bit(env->mmu_model)) {
 253         env->tlb_need_flush = 0;
 254         tlb_flush(env_cpu(env));
 255     } else
 256 #endif /* defined(TARGET_PPC64) */
 257     switch (env->mmu_model) {
 258     case POWERPC_MMU_SOFT_6xx:
 259         ppc6xx_tlb_invalidate_all(env);
 260         break;
 261     case POWERPC_MMU_SOFT_4xx:
 262         ppc4xx_tlb_invalidate_all(env);
 263         break;
 264     case POWERPC_MMU_REAL:
 265         cpu_abort(env_cpu(env), "No TLB for PowerPC 4xx in real mode\n");
 266         break;
 267     case POWERPC_MMU_MPC8xx:
 268         /* XXX: TODO */
 269         cpu_abort(env_cpu(env), "MPC8xx MMU model is not implemented\n");
 270         break;
 271     case POWERPC_MMU_BOOKE:
 272         tlb_flush(env_cpu(env));
 273         break;
 274     case POWERPC_MMU_BOOKE206:
 275         booke206_flush_tlb(env, -1, 0);
 276         break;
 277     case POWERPC_MMU_32B:
 278         env->tlb_need_flush = 0;
 279         tlb_flush(env_cpu(env));
 280         break;
 281     default:
 282         /* XXX: TODO */
 283         cpu_abort(env_cpu(env), "Unknown MMU model %x\n", env->mmu_model);
 284         break;
 285     }
 286 }
 287
 288 void ppc_tlb_invalidate_one(CPUPPCState *env, target_ulong addr)
 289 {
 290 #if !defined(FLUSH_ALL_TLBS)
 291     addr &= TARGET_PAGE_MASK;
 292 #if defined(TARGET_PPC64)
 293     if (mmu_is_64bit(env->mmu_model)) {
 294         /* tlbie invalidate TLBs for all segments */
 295         /*
 296          * XXX: given the fact that there are too many segments to invalidate,
 297          *      and we still don't have a tlb_flush_mask(env, n, mask) in QEMU,
 298          *      we just invalidate all TLBs
 299          */
 300         env->tlb_need_flush |= TLB_NEED_LOCAL_FLUSH;
 301     } else
 302 #endif /* defined(TARGET_PPC64) */
 303     switch (env->mmu_model) {
 304     case POWERPC_MMU_SOFT_6xx:
 305         ppc6xx_tlb_invalidate_virt(env, addr, 0);
 306         ppc6xx_tlb_invalidate_virt(env, addr, 1);
 307         break;
 308     case POWERPC_MMU_32B:
 309         /*
 310          * Actual CPUs invalidate entire congruence classes based on
 311          * the geometry of their TLBs and some OSes take that into
 312          * account, we just mark the TLB to be flushed later (context
 313          * synchronizing event or sync instruction on 32-bit).
 314          */
 315         env->tlb_need_flush |= TLB_NEED_LOCAL_FLUSH;
 316         break;
 317     default:
 318         /* Should never reach here with other MMU models */
 319         g_assert_not_reached();
 320     }
 321 #else
 322     ppc_tlb_invalidate_all(env);
 323 #endif
 324 }
 325
 326 /*****************************************************************************/
 327 /* Special registers manipulation */
 328
 329 /* Segment registers load and store */
 330 target_ulong helper_load_sr(CPUPPCState *env, target_ulong sr_num)
 331 {
 332 #if defined(TARGET_PPC64)
 333     if (mmu_is_64bit(env->mmu_model)) {
 334         /* XXX */
 335         return 0;
 336     }
 337 #endif
 338     return env->sr[sr_num];
 339 }
 340
 341 void helper_store_sr(CPUPPCState *env, target_ulong srnum, target_ulong value)
 342 {
 343     qemu_log_mask(CPU_LOG_MMU,
 344             "%s: reg=%d " TARGET_FMT_lx " " TARGET_FMT_lx "\n", __func__,
 345             (int)srnum, value, env->sr[srnum]);
 346 #if defined(TARGET_PPC64)
 347     if (mmu_is_64bit(env->mmu_model)) {
 348         PowerPCCPU *cpu = env_archcpu(env);
 349         uint64_t esid, vsid;
 350
 351         /* ESID = srnum */
 352         esid = ((uint64_t)(srnum & 0xf) << 28) | SLB_ESID_V;
 353
 354         /* VSID = VSID */
 355         vsid = (value & 0xfffffff) << 12;
 356         /* flags = flags */
 357         vsid |= ((value >> 27) & 0xf) << 8;
 358
 359         ppc_store_slb(cpu, srnum, esid, vsid);
 360     } else
 361 #endif
 362     if (env->sr[srnum] != value) {
 363         env->sr[srnum] = value;
 364         /*
 365          * Invalidating 256MB of virtual memory in 4kB pages is way
 366          * longer than flushing the whole TLB.
 367          */
 368 #if !defined(FLUSH_ALL_TLBS) && 0
 369         {
 370             target_ulong page, end;
 371             /* Invalidate 256 MB of virtual memory */
 372             page = (16 << 20) * srnum;
 373             end = page + (16 << 20);
 374             for (; page != end; page += TARGET_PAGE_SIZE) {
 375                 tlb_flush_page(env_cpu(env), page);
 376             }
 377         }
 378 #else
 379         env->tlb_need_flush |= TLB_NEED_LOCAL_FLUSH;
 380 #endif
 381     }
 382 }
 383
 384 /* TLB management */
 385 void helper_tlbia(CPUPPCState *env)
 386 {
 387     ppc_tlb_invalidate_all(env);
 388 }
 389
 390 void helper_tlbie(CPUPPCState *env, target_ulong addr)
 391 {
 392     ppc_tlb_invalidate_one(env, addr);
 393 }
 394
 395 #if defined(TARGET_PPC64)
 396
 397 /* Invalidation Selector */
 398 #define TLBIE_IS_VA         0
 399 #define TLBIE_IS_PID        1
 400 #define TLBIE_IS_LPID       2
 401 #define TLBIE_IS_ALL        3
 402
 403 /* Radix Invalidation Control */
 404 #define TLBIE_RIC_TLB       0
 405 #define TLBIE_RIC_PWC       1
 406 #define TLBIE_RIC_ALL       2
 407 #define TLBIE_RIC_GRP       3
 408
 409 /* Radix Actual Page sizes */
 410 #define TLBIE_R_AP_4K       0
 411 #define TLBIE_R_AP_64K      5
 412 #define TLBIE_R_AP_2M       1
 413 #define TLBIE_R_AP_1G       2
 414
 415 /* RB field masks */
 416 #define TLBIE_RB_EPN_MASK   PPC_BITMASK(0, 51)
 417 #define TLBIE_RB_IS_MASK    PPC_BITMASK(52, 53)
 418 #define TLBIE_RB_AP_MASK    PPC_BITMASK(56, 58)
 419
 420 void helper_tlbie_isa300(CPUPPCState *env, target_ulong rb, target_ulong rs,
 421                          uint32_t flags)
 422 {
 423     unsigned ric = (flags & TLBIE_F_RIC_MASK) >> TLBIE_F_RIC_SHIFT;
 424     /*
 425      * With the exception of the checks for invalid instruction forms,
 426      * PRS is currently ignored, because we don't know if a given TLB entry
 427      * is process or partition scoped.
 428      */
 429     bool prs = flags & TLBIE_F_PRS;
 430     bool r = flags & TLBIE_F_R;
 431     bool local = flags & TLBIE_F_LOCAL;
 432     bool effR;
 433     unsigned is = extract64(rb, PPC_BIT_NR(53), 2);
 434     unsigned ap;        /* actual page size */
 435     target_ulong addr, pgoffs_mask;
 436
 437     qemu_log_mask(CPU_LOG_MMU,
 438         "%s: local=%d addr=" TARGET_FMT_lx " ric=%u prs=%d r=%d is=%u\n",
 439         __func__, local, rb & TARGET_PAGE_MASK, ric, prs, r, is);
 440
 441     effR = FIELD_EX64(env->msr, MSR, HV) ? r : env->spr[SPR_LPCR] & LPCR_HR;
 442
 443     /* Partial TLB invalidation is supported for Radix only for now. */
 444     if (!effR) {
 445         goto inval_all;
 446     }
 447
 448     /* Check for invalid instruction forms (effR=1). */
 449     if (unlikely(ric == TLBIE_RIC_GRP ||
 450                  ((ric == TLBIE_RIC_PWC || ric == TLBIE_RIC_ALL) &&
 451                                            is == TLBIE_IS_VA) ||
 452                  (!prs && is == TLBIE_IS_PID))) {
 453         qemu_log_mask(LOG_GUEST_ERROR,
 454             "%s: invalid instruction form: ric=%u prs=%d r=%d is=%u\n",
 455             __func__, ric, prs, r, is);
 456         goto invalid;
 457     }
 458
 459     /* We don't cache Page Walks. */
 460     if (ric == TLBIE_RIC_PWC) {
 461         if (local) {
 462             unsigned set = extract64(rb, PPC_BIT_NR(51), 12);
 463             if (set != 0) {
 464                 qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid set: %d\n",
 465                               __func__, set);
 466                 goto invalid;
 467             }
 468         }
 469         return;
 470     }
 471
 472     /*
 473      * Invalidation by LPID or PID is not supported, so fallback
 474      * to full TLB flush in these cases.
 475      */
 476     if (is != TLBIE_IS_VA) {
 477         goto inval_all;
 478     }
 479
 480     /*
 481      * The results of an attempt to invalidate a translation outside of
 482      * quadrant 0 for Radix Tree translation (effR=1, RIC=0, PRS=1, IS=0,
 483      * and EA 0:1 != 0b00) are boundedly undefined.
 484      */
 485     if (unlikely(ric == TLBIE_RIC_TLB && prs && is == TLBIE_IS_VA &&
 486                  (rb & R_EADDR_QUADRANT) != R_EADDR_QUADRANT0)) {
 487         qemu_log_mask(LOG_GUEST_ERROR,
 488             "%s: attempt to invalidate a translation outside of quadrant 0\n",
 489             __func__);
 490         goto inval_all;
 491     }
 492
 493     assert(is == TLBIE_IS_VA);
 494     assert(ric == TLBIE_RIC_TLB || ric == TLBIE_RIC_ALL);
 495
 496     ap = extract64(rb, PPC_BIT_NR(58), 3);
 497     switch (ap) {
 498     case TLBIE_R_AP_4K:
 499         pgoffs_mask = 0xfffull;
 500         break;
 501
 502     case TLBIE_R_AP_64K:
 503         pgoffs_mask = 0xffffull;
 504         break;
 505
 506     case TLBIE_R_AP_2M:
 507         pgoffs_mask = 0x1fffffull;
 508         break;
 509
 510     case TLBIE_R_AP_1G:
 511         pgoffs_mask = 0x3fffffffull;
 512         break;
 513
 514     default:
 515         /*
 516          * If the value specified in RS 0:31, RS 32:63, RB 54:55, RB 56:58,
 517          * RB 44:51, or RB 56:63, when it is needed to perform the specified
 518          * operation, is not supported by the implementation, the instruction
 519          * is treated as if the instruction form were invalid.
 520          */
 521         qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid AP: %d\n", __func__, ap);
 522         goto invalid;
 523     }
 524
 525     addr = rb & TLBIE_RB_EPN_MASK & ~pgoffs_mask;
 526
 527     if (local) {
 528         tlb_flush_page(env_cpu(env), addr);
 529     } else {
 530         tlb_flush_page_all_cpus_synced(env_cpu(env), addr);
 531     }
 532     return;
 533
 534 inval_all:
 535     env->tlb_need_flush |= TLB_NEED_LOCAL_FLUSH;
 536     if (!local) {
 537         env->tlb_need_flush |= TLB_NEED_GLOBAL_FLUSH;
 538     }
 539     return;
 540
 541 invalid:
 542     raise_exception_err_ra(env, POWERPC_EXCP_PROGRAM,
 543                            POWERPC_EXCP_INVAL |
 544                            POWERPC_EXCP_INVAL_INVAL, GETPC());
 545 }
 546
 547 #endif
 548
 549 void helper_tlbiva(CPUPPCState *env, target_ulong addr)
 550 {
 551     /* tlbiva instruction only exists on BookE */
 552     assert(env->mmu_model == POWERPC_MMU_BOOKE);
 553     /* XXX: TODO */
 554     cpu_abort(env_cpu(env), "BookE MMU model is not implemented\n");
 555 }
 556
 557 /* Software driven TLBs management */
 558 /* PowerPC 602/603 software TLB load instructions helpers */
 559 static void do_6xx_tlb(CPUPPCState *env, target_ulong new_EPN, int is_code)
 560 {
 561     target_ulong RPN, CMP, EPN;
 562     int way;
 563
 564     RPN = env->spr[SPR_RPA];
 565     if (is_code) {
 566         CMP = env->spr[SPR_ICMP];
 567         EPN = env->spr[SPR_IMISS];
 568     } else {
 569         CMP = env->spr[SPR_DCMP];
 570         EPN = env->spr[SPR_DMISS];
 571     }
 572     way = (env->spr[SPR_SRR1] >> 17) & 1;
 573     (void)EPN; /* avoid a compiler warning */
 574     qemu_log_mask(CPU_LOG_MMU, "%s: EPN " TARGET_FMT_lx " " TARGET_FMT_lx
 575                   " PTE0 " TARGET_FMT_lx " PTE1 " TARGET_FMT_lx " way %d\n",
 576                   __func__, new_EPN, EPN, CMP, RPN, way);
 577     /* Store this TLB */
 578     ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK),
 579                      way, is_code, CMP, RPN);
 580 }
 581
 582 void helper_6xx_tlbd(CPUPPCState *env, target_ulong EPN)
 583 {
 584     do_6xx_tlb(env, EPN, 0);
 585 }
 586
 587 void helper_6xx_tlbi(CPUPPCState *env, target_ulong EPN)
 588 {
 589     do_6xx_tlb(env, EPN, 1);
 590 }
 591
 592 static inline target_ulong booke_tlb_to_page_size(int size)
 593 {
 594     return 1024 << (2 * size);
 595 }
 596
 597 static inline int booke_page_size_to_tlb(target_ulong page_size)
 598 {
 599     int size;
 600
 601     switch (page_size) {
 602     case 0x00000400UL:
 603         size = 0x0;
 604         break;
 605     case 0x00001000UL:
 606         size = 0x1;
 607         break;
 608     case 0x00004000UL:
 609         size = 0x2;
 610         break;
 611     case 0x00010000UL:
 612         size = 0x3;
 613         break;
 614     case 0x00040000UL:
 615         size = 0x4;
 616         break;
 617     case 0x00100000UL:
 618         size = 0x5;
 619         break;
 620     case 0x00400000UL:
 621         size = 0x6;
 622         break;
 623     case 0x01000000UL:
 624         size = 0x7;
 625         break;
 626     case 0x04000000UL:
 627         size = 0x8;
 628         break;
 629     case 0x10000000UL:
 630         size = 0x9;
 631         break;
 632     case 0x40000000UL:
 633         size = 0xA;
 634         break;
 635 #if defined(TARGET_PPC64)
 636     case 0x000100000000ULL:
 637         size = 0xB;
 638         break;
 639     case 0x000400000000ULL:
 640         size = 0xC;
 641         break;
 642     case 0x001000000000ULL:
 643         size = 0xD;
 644         break;
 645     case 0x004000000000ULL:
 646         size = 0xE;
 647         break;
 648     case 0x010000000000ULL:
 649         size = 0xF;
 650         break;
 651 #endif
 652     default:
 653         size = -1;
 654         break;
 655     }
 656
 657     return size;
 658 }
 659
 660 /* Helpers for 4xx TLB management */
 661 #define PPC4XX_TLB_ENTRY_MASK       0x0000003f  /* Mask for 64 TLB entries */
 662
 663 #define PPC4XX_TLBHI_V              0x00000040
 664 #define PPC4XX_TLBHI_E              0x00000020
 665 #define PPC4XX_TLBHI_SIZE_MIN       0
 666 #define PPC4XX_TLBHI_SIZE_MAX       7
 667 #define PPC4XX_TLBHI_SIZE_DEFAULT   1
 668 #define PPC4XX_TLBHI_SIZE_SHIFT     7
 669 #define PPC4XX_TLBHI_SIZE_MASK      0x00000007
 670
 671 #define PPC4XX_TLBLO_EX             0x00000200
 672 #define PPC4XX_TLBLO_WR             0x00000100
 673 #define PPC4XX_TLBLO_ATTR_MASK      0x000000FF
 674 #define PPC4XX_TLBLO_RPN_MASK       0xFFFFFC00
 675
 676 void helper_store_40x_pid(CPUPPCState *env, target_ulong val)
 677 {
 678     if (env->spr[SPR_40x_PID] != val) {
 679         env->spr[SPR_40x_PID] = val;
 680         env->tlb_need_flush |= TLB_NEED_LOCAL_FLUSH;
 681     }
 682 }
 683
 684 target_ulong helper_4xx_tlbre_hi(CPUPPCState *env, target_ulong entry)
 685 {
 686     ppcemb_tlb_t *tlb;
 687     target_ulong ret;
 688     int size;
 689
 690     entry &= PPC4XX_TLB_ENTRY_MASK;
 691     tlb = &env->tlb.tlbe[entry];
 692     ret = tlb->EPN;
 693     if (tlb->prot & PAGE_VALID) {
 694         ret |= PPC4XX_TLBHI_V;
 695     }
 696     size = booke_page_size_to_tlb(tlb->size);
 697     if (size < PPC4XX_TLBHI_SIZE_MIN || size > PPC4XX_TLBHI_SIZE_MAX) {
 698         size = PPC4XX_TLBHI_SIZE_DEFAULT;
 699     }
 700     ret |= size << PPC4XX_TLBHI_SIZE_SHIFT;
 701     helper_store_40x_pid(env, tlb->PID);
 702     return ret;
 703 }
 704
 705 target_ulong helper_4xx_tlbre_lo(CPUPPCState *env, target_ulong entry)
 706 {
 707     ppcemb_tlb_t *tlb;
 708     target_ulong ret;
 709
 710     entry &= PPC4XX_TLB_ENTRY_MASK;
 711     tlb = &env->tlb.tlbe[entry];
 712     ret = tlb->RPN;
 713     if (tlb->prot & PAGE_EXEC) {
 714         ret |= PPC4XX_TLBLO_EX;
 715     }
 716     if (tlb->prot & PAGE_WRITE) {
 717         ret |= PPC4XX_TLBLO_WR;
 718     }
 719     return ret;
 720 }
 721
 722 static void ppcemb_tlb_flush(CPUState *cs, ppcemb_tlb_t *tlb)
 723 {
 724     unsigned mmu_idx = 0;
 725
 726     if (tlb->prot & 0xf) {
 727         mmu_idx |= 0x1;
 728     }
 729     if ((tlb->prot >> 4) & 0xf) {
 730         mmu_idx |= 0x2;
 731     }
 732     if (tlb->attr & 1) {
 733         mmu_idx <<= 2;
 734     }
 735
 736     tlb_flush_range_by_mmuidx(cs, tlb->EPN, tlb->size, mmu_idx,
 737                               TARGET_LONG_BITS);
 738 }
 739
 740 void helper_4xx_tlbwe_hi(CPUPPCState *env, target_ulong entry,
 741                          target_ulong val)
 742 {
 743     CPUState *cs = env_cpu(env);
 744     ppcemb_tlb_t *tlb;
 745
 746     qemu_log_mask(CPU_LOG_MMU, "%s entry %d val " TARGET_FMT_lx "\n",
 747                   __func__, (int)entry,
 748               val);
 749     entry &= PPC4XX_TLB_ENTRY_MASK;
 750     tlb = &env->tlb.tlbe[entry];
 751     /* Invalidate previous TLB (if it's valid) */
 752     if ((tlb->prot & PAGE_VALID) && tlb->PID == env->spr[SPR_40x_PID]) {
 753         qemu_log_mask(CPU_LOG_MMU, "%s: invalidate old TLB %d start "
 754                       TARGET_FMT_lx " end " TARGET_FMT_lx "\n", __func__,
 755                       (int)entry, tlb->EPN, tlb->EPN + tlb->size);
 756         ppcemb_tlb_flush(cs, tlb);
 757     }
 758     tlb->size = booke_tlb_to_page_size((val >> PPC4XX_TLBHI_SIZE_SHIFT)
 759                                        & PPC4XX_TLBHI_SIZE_MASK);
 760     /*
 761      * We cannot handle TLB size < TARGET_PAGE_SIZE.
 762      * If this ever occurs, we should implement TARGET_PAGE_BITS_VARY
 763      */
 764     if ((val & PPC4XX_TLBHI_V) && tlb->size < TARGET_PAGE_SIZE) {
 765         cpu_abort(cs, "TLB size " TARGET_FMT_lu " < %u "
 766                   "are not supported (%d)\n"
 767                   "Please implement TARGET_PAGE_BITS_VARY\n",
 768                   tlb->size, TARGET_PAGE_SIZE, (int)((val >> 7) & 0x7));
 769     }
 770     tlb->EPN = val & ~(tlb->size - 1);
 771     if (val & PPC4XX_TLBHI_V) {
 772         tlb->prot |= PAGE_VALID;
 773         if (val & PPC4XX_TLBHI_E) {
 774             /* XXX: TO BE FIXED */
 775             cpu_abort(cs,
 776                       "Little-endian TLB entries are not supported by now\n");
 777         }
 778     } else {
 779         tlb->prot &= ~PAGE_VALID;
 780     }
 781     tlb->PID = env->spr[SPR_40x_PID]; /* PID */
 782     qemu_log_mask(CPU_LOG_MMU, "%s: set up TLB %d RPN " HWADDR_FMT_plx
 783                   " EPN " TARGET_FMT_lx " size " TARGET_FMT_lx
 784                   " prot %c%c%c%c PID %d\n", __func__,
 785                   (int)entry, tlb->RPN, tlb->EPN, tlb->size,
 786                   tlb->prot & PAGE_READ ? 'r' : '-',
 787                   tlb->prot & PAGE_WRITE ? 'w' : '-',
 788                   tlb->prot & PAGE_EXEC ? 'x' : '-',
 789                   tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID);
 790 }
 791
 792 void helper_4xx_tlbwe_lo(CPUPPCState *env, target_ulong entry,
 793                          target_ulong val)
 794 {
 795     CPUState *cs = env_cpu(env);
 796     ppcemb_tlb_t *tlb;
 797
 798     qemu_log_mask(CPU_LOG_MMU, "%s entry %i val " TARGET_FMT_lx "\n",
 799                   __func__, (int)entry, val);
 800     entry &= PPC4XX_TLB_ENTRY_MASK;
 801     tlb = &env->tlb.tlbe[entry];
 802     /* Invalidate previous TLB (if it's valid) */
 803     if ((tlb->prot & PAGE_VALID) && tlb->PID == env->spr[SPR_40x_PID]) {
 804         qemu_log_mask(CPU_LOG_MMU, "%s: invalidate old TLB %d start "
 805                       TARGET_FMT_lx " end " TARGET_FMT_lx "\n", __func__,
 806                       (int)entry, tlb->EPN, tlb->EPN + tlb->size);
 807         ppcemb_tlb_flush(cs, tlb);
 808     }
 809     tlb->attr = val & PPC4XX_TLBLO_ATTR_MASK;
 810     tlb->RPN = val & PPC4XX_TLBLO_RPN_MASK;
 811     tlb->prot = PAGE_READ;
 812     if (val & PPC4XX_TLBLO_EX) {
 813         tlb->prot |= PAGE_EXEC;
 814     }
 815     if (val & PPC4XX_TLBLO_WR) {
 816         tlb->prot |= PAGE_WRITE;
 817     }
 818     qemu_log_mask(CPU_LOG_MMU, "%s: set up TLB %d RPN " HWADDR_FMT_plx
 819                   " EPN " TARGET_FMT_lx
 820                   " size " TARGET_FMT_lx " prot %c%c%c%c PID %d\n", __func__,
 821                   (int)entry, tlb->RPN, tlb->EPN, tlb->size,
 822                   tlb->prot & PAGE_READ ? 'r' : '-',
 823                   tlb->prot & PAGE_WRITE ? 'w' : '-',
 824                   tlb->prot & PAGE_EXEC ? 'x' : '-',
 825                   tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID);
 826 }
 827
 828 target_ulong helper_4xx_tlbsx(CPUPPCState *env, target_ulong address)
 829 {
 830     return ppcemb_tlb_search(env, address, env->spr[SPR_40x_PID]);
 831 }
 832
 833 static bool mmubooke_pid_match(CPUPPCState *env, ppcemb_tlb_t *tlb)
 834 {
 835     if (tlb->PID == env->spr[SPR_BOOKE_PID]) {
 836         return true;
 837     }
 838     if (!env->nb_pids) {
 839         return false;
 840     }
 841
 842     if (env->spr[SPR_BOOKE_PID1] && tlb->PID == env->spr[SPR_BOOKE_PID1]) {
 843         return true;
 844     }
 845     if (env->spr[SPR_BOOKE_PID2] && tlb->PID == env->spr[SPR_BOOKE_PID2]) {
 846         return true;
 847     }
 848
 849     return false;
 850 }
 851
 852 /* PowerPC 440 TLB management */
 853 void helper_440_tlbwe(CPUPPCState *env, uint32_t word, target_ulong entry,
 854                       target_ulong value)
 855 {
 856     ppcemb_tlb_t *tlb;
 857
 858     qemu_log_mask(CPU_LOG_MMU, "%s word %d entry %d value " TARGET_FMT_lx "\n",
 859                   __func__, word, (int)entry, value);
 860     entry &= 0x3F;
 861     tlb = &env->tlb.tlbe[entry];
 862
 863     /* Invalidate previous TLB (if it's valid) */
 864     if ((tlb->prot & PAGE_VALID) && mmubooke_pid_match(env, tlb)) {
 865         qemu_log_mask(CPU_LOG_MMU, "%s: invalidate old TLB %d start "
 866                       TARGET_FMT_lx " end " TARGET_FMT_lx "\n", __func__,
 867                       (int)entry, tlb->EPN, tlb->EPN + tlb->size);
 868         ppcemb_tlb_flush(env_cpu(env), tlb);
 869     }
 870
 871     switch (word) {
 872     default:
 873         /* Just here to please gcc */
 874     case 0:
 875         tlb->EPN = value & 0xFFFFFC00;
 876         tlb->size = booke_tlb_to_page_size((value >> 4) & 0xF);
 877         tlb->attr &= ~0x1;
 878         tlb->attr |= (value >> 8) & 1;
 879         if (value & 0x200) {
 880             tlb->prot |= PAGE_VALID;
 881         } else {
 882             tlb->prot &= ~PAGE_VALID;
 883         }
 884         tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF;
 885         break;
 886     case 1:
 887         tlb->RPN = value & 0xFFFFFC0F;
 888         break;
 889     case 2:
 890         tlb->attr = (tlb->attr & 0x1) | (value & 0x0000FF00);
 891         tlb->prot = tlb->prot & PAGE_VALID;
 892         if (value & 0x1) {
 893             tlb->prot |= PAGE_READ << 4;
 894         }
 895         if (value & 0x2) {
 896             tlb->prot |= PAGE_WRITE << 4;
 897         }
 898         if (value & 0x4) {
 899             tlb->prot |= PAGE_EXEC << 4;
 900         }
 901         if (value & 0x8) {
 902             tlb->prot |= PAGE_READ;
 903         }
 904         if (value & 0x10) {
 905             tlb->prot |= PAGE_WRITE;
 906         }
 907         if (value & 0x20) {
 908             tlb->prot |= PAGE_EXEC;
 909         }
 910         break;
 911     }
 912 }
 913
 914 target_ulong helper_440_tlbre(CPUPPCState *env, uint32_t word,
 915                               target_ulong entry)
 916 {
 917     ppcemb_tlb_t *tlb;
 918     target_ulong ret;
 919     int size;
 920
 921     entry &= 0x3F;
 922     tlb = &env->tlb.tlbe[entry];
 923     switch (word) {
 924     default:
 925         /* Just here to please gcc */
 926     case 0:
 927         ret = tlb->EPN;
 928         size = booke_page_size_to_tlb(tlb->size);
 929         if (size < 0 || size > 0xF) {
 930             size = 1;
 931         }
 932         ret |= size << 4;
 933         if (tlb->attr & 0x1) {
 934             ret |= 0x100;
 935         }
 936         if (tlb->prot & PAGE_VALID) {
 937             ret |= 0x200;
 938         }
 939         env->spr[SPR_440_MMUCR] &= ~0x000000FF;
 940         env->spr[SPR_440_MMUCR] |= tlb->PID;
 941         break;
 942     case 1:
 943         ret = tlb->RPN;
 944         break;
 945     case 2:
 946         ret = tlb->attr & ~0x1;
 947         if (tlb->prot & (PAGE_READ << 4)) {
 948             ret |= 0x1;
 949         }
 950         if (tlb->prot & (PAGE_WRITE << 4)) {
 951             ret |= 0x2;
 952         }
 953         if (tlb->prot & (PAGE_EXEC << 4)) {
 954             ret |= 0x4;
 955         }
 956         if (tlb->prot & PAGE_READ) {
 957             ret |= 0x8;
 958         }
 959         if (tlb->prot & PAGE_WRITE) {
 960             ret |= 0x10;
 961         }
 962         if (tlb->prot & PAGE_EXEC) {
 963             ret |= 0x20;
 964         }
 965         break;
 966     }
 967     return ret;
 968 }
 969
 970 target_ulong helper_440_tlbsx(CPUPPCState *env, target_ulong address)
 971 {
 972     return ppcemb_tlb_search(env, address, env->spr[SPR_440_MMUCR] & 0xFF);
 973 }
 974
 975 /* PowerPC BookE 2.06 TLB management */
 976
 977 static ppcmas_tlb_t *booke206_cur_tlb(CPUPPCState *env)
 978 {
 979     uint32_t tlbncfg = 0;
 980     int esel = (env->spr[SPR_BOOKE_MAS0] & MAS0_ESEL_MASK) >> MAS0_ESEL_SHIFT;
 981     int ea = (env->spr[SPR_BOOKE_MAS2] & MAS2_EPN_MASK);
 982     int tlb;
 983
 984     tlb = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT;
 985     tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlb];
 986
 987     if ((tlbncfg & TLBnCFG_HES) && (env->spr[SPR_BOOKE_MAS0] & MAS0_HES)) {
 988         cpu_abort(env_cpu(env), "we don't support HES yet\n");
 989     }
 990
 991     return booke206_get_tlbm(env, tlb, ea, esel);
 992 }
 993
 994 void helper_booke_setpid(CPUPPCState *env, uint32_t pidn, target_ulong pid)
 995 {
 996     env->spr[pidn] = pid;
 997     /* changing PIDs mean we're in a different address space now */
 998     tlb_flush(env_cpu(env));
 999 }
1000
1001 void helper_booke_set_eplc(CPUPPCState *env, target_ulong val)
1002 {
1003     env->spr[SPR_BOOKE_EPLC] = val & EPID_MASK;
1004     tlb_flush_by_mmuidx(env_cpu(env), 1 << PPC_TLB_EPID_LOAD);
1005 }
1006 void helper_booke_set_epsc(CPUPPCState *env, target_ulong val)
1007 {
1008     env->spr[SPR_BOOKE_EPSC] = val & EPID_MASK;
1009     tlb_flush_by_mmuidx(env_cpu(env), 1 << PPC_TLB_EPID_STORE);
1010 }
1011
1012 static inline void flush_page(CPUPPCState *env, ppcmas_tlb_t *tlb)
1013 {
1014     if (booke206_tlb_to_page_size(env, tlb) == TARGET_PAGE_SIZE) {
1015         tlb_flush_page(env_cpu(env), tlb->mas2 & MAS2_EPN_MASK);
1016     } else {
1017         tlb_flush(env_cpu(env));
1018     }
1019 }
1020
1021 void helper_booke206_tlbwe(CPUPPCState *env)
1022 {
1023     uint32_t tlbncfg, tlbn;
1024     ppcmas_tlb_t *tlb;
1025     uint32_t size_tlb, size_ps;
1026     target_ulong mask;
1027
1028
1029     switch (env->spr[SPR_BOOKE_MAS0] & MAS0_WQ_MASK) {
1030     case MAS0_WQ_ALWAYS:
1031         /* good to go, write that entry */
1032         break;
1033     case MAS0_WQ_COND:
1034         /* XXX check if reserved */
1035         if (0) {
1036             return;
1037         }
1038         break;
1039     case MAS0_WQ_CLR_RSRV:
1040         /* XXX clear entry */
1041         return;
1042     default:
1043         /* no idea what to do */
1044         return;
1045     }
1046
1047     if (((env->spr[SPR_BOOKE_MAS0] & MAS0_ATSEL) == MAS0_ATSEL_LRAT) &&
1048         !FIELD_EX64(env->msr, MSR, GS)) {
1049         /* XXX we don't support direct LRAT setting yet */
1050         fprintf(stderr, "cpu: don't support LRAT setting yet\n");
1051         return;
1052     }
1053
1054     tlbn = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT;
1055     tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlbn];
1056
1057     tlb = booke206_cur_tlb(env);
1058
1059     if (!tlb) {
1060         raise_exception_err_ra(env, POWERPC_EXCP_PROGRAM,
1061                                POWERPC_EXCP_INVAL |
1062                                POWERPC_EXCP_INVAL_INVAL, GETPC());
1063     }
1064
1065     /* check that we support the targeted size */
1066     size_tlb = (env->spr[SPR_BOOKE_MAS1] & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT;
1067     size_ps = booke206_tlbnps(env, tlbn);
1068     if ((env->spr[SPR_BOOKE_MAS1] & MAS1_VALID) && (tlbncfg & TLBnCFG_AVAIL) &&
1069         !(size_ps & (1 << size_tlb))) {
1070         raise_exception_err_ra(env, POWERPC_EXCP_PROGRAM,
1071                                POWERPC_EXCP_INVAL |
1072                                POWERPC_EXCP_INVAL_INVAL, GETPC());
1073     }
1074
1075     if (FIELD_EX64(env->msr, MSR, GS)) {
1076         cpu_abort(env_cpu(env), "missing HV implementation\n");
1077     }
1078
1079     if (tlb->mas1 & MAS1_VALID) {
1080         /*
1081          * Invalidate the page in QEMU TLB if it was a valid entry.
1082          *
1083          * In "PowerPC e500 Core Family Reference Manual, Rev. 1",
1084          * Section "12.4.2 TLB Write Entry (tlbwe) Instruction":
1085          * (https://www.nxp.com/docs/en/reference-manual/E500CORERM.pdf)
1086          *
1087          * "Note that when an L2 TLB entry is written, it may be displacing an
1088          * already valid entry in the same L2 TLB location (a victim). If a
1089          * valid L1 TLB entry corresponds to the L2 MMU victim entry, that L1
1090          * TLB entry is automatically invalidated."
1091          */
1092         flush_page(env, tlb);
1093     }
1094
1095     tlb->mas7_3 = ((uint64_t)env->spr[SPR_BOOKE_MAS7] << 32) |
1096         env->spr[SPR_BOOKE_MAS3];
1097     tlb->mas1 = env->spr[SPR_BOOKE_MAS1];
1098
1099     if ((env->spr[SPR_MMUCFG] & MMUCFG_MAVN) == MMUCFG_MAVN_V2) {
1100         /* For TLB which has a fixed size TSIZE is ignored with MAV2 */
1101         booke206_fixed_size_tlbn(env, tlbn, tlb);
1102     } else {
1103         if (!(tlbncfg & TLBnCFG_AVAIL)) {
1104             /* force !AVAIL TLB entries to correct page size */
1105             tlb->mas1 &= ~MAS1_TSIZE_MASK;
1106             /* XXX can be configured in MMUCSR0 */
1107             tlb->mas1 |= (tlbncfg & TLBnCFG_MINSIZE) >> 12;
1108         }
1109     }
1110
1111     /* Make a mask from TLB size to discard invalid bits in EPN field */
1112     mask = ~(booke206_tlb_to_page_size(env, tlb) - 1);
1113     /* Add a mask for page attributes */
1114     mask |= MAS2_ACM | MAS2_VLE | MAS2_W | MAS2_I | MAS2_M | MAS2_G | MAS2_E;
1115
1116     if (!FIELD_EX64(env->msr, MSR, CM)) {
1117         /*
1118          * Executing a tlbwe instruction in 32-bit mode will set bits
1119          * 0:31 of the TLB EPN field to zero.
1120          */
1121         mask &= 0xffffffff;
1122     }
1123
1124     tlb->mas2 = env->spr[SPR_BOOKE_MAS2] & mask;
1125
1126     if (!(tlbncfg & TLBnCFG_IPROT)) {
1127         /* no IPROT supported by TLB */
1128         tlb->mas1 &= ~MAS1_IPROT;
1129     }
1130
1131     flush_page(env, tlb);
1132 }
1133
1134 static inline void booke206_tlb_to_mas(CPUPPCState *env, ppcmas_tlb_t *tlb)
1135 {
1136     int tlbn = booke206_tlbm_to_tlbn(env, tlb);
1137     int way = booke206_tlbm_to_way(env, tlb);
1138
1139     env->spr[SPR_BOOKE_MAS0] = tlbn << MAS0_TLBSEL_SHIFT;
1140     env->spr[SPR_BOOKE_MAS0] |= way << MAS0_ESEL_SHIFT;
1141     env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT;
1142
1143     env->spr[SPR_BOOKE_MAS1] = tlb->mas1;
1144     env->spr[SPR_BOOKE_MAS2] = tlb->mas2;
1145     env->spr[SPR_BOOKE_MAS3] = tlb->mas7_3;
1146     env->spr[SPR_BOOKE_MAS7] = tlb->mas7_3 >> 32;
1147 }
1148
1149 void helper_booke206_tlbre(CPUPPCState *env)
1150 {
1151     ppcmas_tlb_t *tlb = NULL;
1152
1153     tlb = booke206_cur_tlb(env);
1154     if (!tlb) {
1155         env->spr[SPR_BOOKE_MAS1] = 0;
1156     } else {
1157         booke206_tlb_to_mas(env, tlb);
1158     }
1159 }
1160
1161 void helper_booke206_tlbsx(CPUPPCState *env, target_ulong address)
1162 {
1163     ppcmas_tlb_t *tlb = NULL;
1164     int i, j;
1165     hwaddr raddr;
1166     uint32_t spid, sas;
1167
1168     spid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID_MASK) >> MAS6_SPID_SHIFT;
1169     sas = env->spr[SPR_BOOKE_MAS6] & MAS6_SAS;
1170
1171     for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
1172         int ways = booke206_tlb_ways(env, i);
1173
1174         for (j = 0; j < ways; j++) {
1175             tlb = booke206_get_tlbm(env, i, address, j);
1176
1177             if (!tlb) {
1178                 continue;
1179             }
1180
1181             if (ppcmas_tlb_check(env, tlb, &raddr, address, spid)) {
1182                 continue;
1183             }
1184
1185             if (sas != ((tlb->mas1 & MAS1_TS) >> MAS1_TS_SHIFT)) {
1186                 continue;
1187             }
1188
1189             booke206_tlb_to_mas(env, tlb);
1190             return;
1191         }
1192     }
1193
1194     /* no entry found, fill with defaults */
1195     env->spr[SPR_BOOKE_MAS0] = env->spr[SPR_BOOKE_MAS4] & MAS4_TLBSELD_MASK;
1196     env->spr[SPR_BOOKE_MAS1] = env->spr[SPR_BOOKE_MAS4] & MAS4_TSIZED_MASK;
1197     env->spr[SPR_BOOKE_MAS2] = env->spr[SPR_BOOKE_MAS4] & MAS4_WIMGED_MASK;
1198     env->spr[SPR_BOOKE_MAS3] = 0;
1199     env->spr[SPR_BOOKE_MAS7] = 0;
1200
1201     if (env->spr[SPR_BOOKE_MAS6] & MAS6_SAS) {
1202         env->spr[SPR_BOOKE_MAS1] |= MAS1_TS;
1203     }
1204
1205     env->spr[SPR_BOOKE_MAS1] |= (env->spr[SPR_BOOKE_MAS6] >> 16)
1206         << MAS1_TID_SHIFT;
1207
1208     /* next victim logic */
1209     env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_ESEL_SHIFT;
1210     env->last_way++;
1211     env->last_way &= booke206_tlb_ways(env, 0) - 1;
1212     env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT;
1213 }
1214
1215 static inline void booke206_invalidate_ea_tlb(CPUPPCState *env, int tlbn,
1216                                               vaddr ea)
1217 {
1218     int i;
1219     int ways = booke206_tlb_ways(env, tlbn);
1220     target_ulong mask;
1221
1222     for (i = 0; i < ways; i++) {
1223         ppcmas_tlb_t *tlb = booke206_get_tlbm(env, tlbn, ea, i);
1224         if (!tlb) {
1225             continue;
1226         }
1227         mask = ~(booke206_tlb_to_page_size(env, tlb) - 1);
1228         if (((tlb->mas2 & MAS2_EPN_MASK) == (ea & mask)) &&
1229             !(tlb->mas1 & MAS1_IPROT)) {
1230             tlb->mas1 &= ~MAS1_VALID;
1231         }
1232     }
1233 }
1234
1235 void helper_booke206_tlbivax(CPUPPCState *env, target_ulong address)
1236 {
1237     CPUState *cs;
1238
1239     if (address & 0x4) {
1240         /* flush all entries */
1241         if (address & 0x8) {
1242             /* flush all of TLB1 */
1243             booke206_flush_tlb(env, BOOKE206_FLUSH_TLB1, 1);
1244         } else {
1245             /* flush all of TLB0 */
1246             booke206_flush_tlb(env, BOOKE206_FLUSH_TLB0, 0);
1247         }
1248         return;
1249     }
1250
1251     if (address & 0x8) {
1252         /* flush TLB1 entries */
1253         booke206_invalidate_ea_tlb(env, 1, address);
1254         CPU_FOREACH(cs) {
1255             tlb_flush(cs);
1256         }
1257     } else {
1258         /* flush TLB0 entries */
1259         booke206_invalidate_ea_tlb(env, 0, address);
1260         CPU_FOREACH(cs) {
1261             tlb_flush_page(cs, address & MAS2_EPN_MASK);
1262         }
1263     }
1264 }
1265
1266 void helper_booke206_tlbilx0(CPUPPCState *env, target_ulong address)
1267 {
1268     /* XXX missing LPID handling */
1269     booke206_flush_tlb(env, -1, 1);
1270 }
1271
1272 void helper_booke206_tlbilx1(CPUPPCState *env, target_ulong address)
1273 {
1274     int i, j;
1275     int tid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID);
1276     ppcmas_tlb_t *tlb = env->tlb.tlbm;
1277     int tlb_size;
1278
1279     /* XXX missing LPID handling */
1280     for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
1281         tlb_size = booke206_tlb_size(env, i);
1282         for (j = 0; j < tlb_size; j++) {
1283             if (!(tlb[j].mas1 & MAS1_IPROT) &&
1284                 ((tlb[j].mas1 & MAS1_TID_MASK) == tid)) {
1285                 tlb[j].mas1 &= ~MAS1_VALID;
1286             }
1287         }
1288         tlb += booke206_tlb_size(env, i);
1289     }
1290     tlb_flush(env_cpu(env));
1291 }
1292
1293 void helper_booke206_tlbilx3(CPUPPCState *env, target_ulong address)
1294 {
1295     int i, j;
1296     ppcmas_tlb_t *tlb;
1297     int tid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID);
1298     int pid = tid >> MAS6_SPID_SHIFT;
1299     int sgs = env->spr[SPR_BOOKE_MAS5] & MAS5_SGS;
1300     int ind = (env->spr[SPR_BOOKE_MAS6] & MAS6_SIND) ? MAS1_IND : 0;
1301     /* XXX check for unsupported isize and raise an invalid opcode then */
1302     int size = env->spr[SPR_BOOKE_MAS6] & MAS6_ISIZE_MASK;
1303     /* XXX implement MAV2 handling */
1304     bool mav2 = false;
1305
1306     /* XXX missing LPID handling */
1307     /* flush by pid and ea */
1308     for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
1309         int ways = booke206_tlb_ways(env, i);
1310
1311         for (j = 0; j < ways; j++) {
1312             tlb = booke206_get_tlbm(env, i, address, j);
1313             if (!tlb) {
1314                 continue;
1315             }
1316             if ((ppcmas_tlb_check(env, tlb, NULL, address, pid) != 0) ||
1317                 (tlb->mas1 & MAS1_IPROT) ||
1318                 ((tlb->mas1 & MAS1_IND) != ind) ||
1319                 ((tlb->mas8 & MAS8_TGS) != sgs)) {
1320                 continue;
1321             }
1322             if (mav2 && ((tlb->mas1 & MAS1_TSIZE_MASK) != size)) {
1323                 /* XXX only check when MMUCFG[TWC] || TLBnCFG[HES] */
1324                 continue;
1325             }
1326             /* XXX e500mc doesn't match SAS, but other cores might */
1327             tlb->mas1 &= ~MAS1_VALID;
1328         }
1329     }
1330     tlb_flush(env_cpu(env));
1331 }
1332
1333 void helper_booke206_tlbflush(CPUPPCState *env, target_ulong type)
1334 {
1335     int flags = 0;
1336
1337     if (type & 2) {
1338         flags |= BOOKE206_FLUSH_TLB1;
1339     }
1340
1341     if (type & 4) {
1342         flags |= BOOKE206_FLUSH_TLB0;
1343     }
1344
1345     booke206_flush_tlb(env, flags, 1);
1346 }
1347
1348
1349 void helper_check_tlb_flush_local(CPUPPCState *env)
1350 {
1351     check_tlb_flush(env, false);
1352 }
1353
1354 void helper_check_tlb_flush_global(CPUPPCState *env)
1355 {
1356     check_tlb_flush(env, true);
1357 }
1358
1359
1360 bool ppc_cpu_tlb_fill(CPUState *cs, vaddr eaddr, int size,
1361                       MMUAccessType access_type, int mmu_idx,
1362                       bool probe, uintptr_t retaddr)
1363 {
1364     PowerPCCPU *cpu = POWERPC_CPU(cs);
1365     hwaddr raddr;
1366     int page_size, prot;
1367
1368     if (ppc_xlate(cpu, eaddr, access_type, &raddr,
1369                   &page_size, &prot, mmu_idx, !probe)) {
1370         tlb_set_page(cs, eaddr & TARGET_PAGE_MASK, raddr & TARGET_PAGE_MASK,
1371                      prot, mmu_idx, 1UL << page_size);
1372         return true;
1373     }
1374     if (probe) {
1375         return false;
1376     }
1377     raise_exception_err_ra(&cpu->env, cs->exception_index,
1378                            cpu->env.error_code, retaddr);
1379 }