2 * PowerPC emulation helpers for qemu.
4 * Copyright (c) 2003-2007 Jocelyn Mayer
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.
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.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 //#define DEBUG_SOFTWARE_TLB
34 //#define DEBUG_EXCEPTIONS
35 //#define FLUSH_ALL_TLBS
37 /*****************************************************************************/
38 /* PowerPC MMU emulation */
40 #if defined(CONFIG_USER_ONLY)
41 int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
42 int is_user, int is_softmmu)
44 int exception, error_code;
53 error_code |= 0x02000000;
54 env->spr[SPR_DAR] = address;
55 env->spr[SPR_DSISR] = error_code;
57 env->exception_index = exception;
58 env->error_code = error_code;
63 target_phys_addr_t cpu_get_phys_page_debug (CPUState *env, target_ulong addr)
68 /* Common routines used by software and hardware TLBs emulation */
69 static inline int pte_is_valid (target_ulong pte0)
71 return pte0 & 0x80000000 ? 1 : 0;
74 static inline void pte_invalidate (target_ulong *pte0)
79 #define PTE_PTEM_MASK 0x7FFFFFBF
80 #define PTE_CHECK_MASK (TARGET_PAGE_MASK | 0x7B)
82 static int pte_check (mmu_ctx_t *ctx,
83 target_ulong pte0, target_ulong pte1, int h, int rw)
89 /* Check validity and table match */
90 if (pte_is_valid(pte0) && (h == ((pte0 >> 6) & 1))) {
91 /* Check vsid & api */
92 if ((pte0 & PTE_PTEM_MASK) == ctx->ptem) {
93 if (ctx->raddr != (target_ulong)-1) {
94 /* all matches should have equal RPN, WIMG & PP */
95 if ((ctx->raddr & PTE_CHECK_MASK) != (pte1 & PTE_CHECK_MASK)) {
97 fprintf(logfile, "Bad RPN/WIMG/PP\n");
101 /* Compute access rights */
104 if ((pte1 & 0x00000003) != 0x3)
105 access |= PAGE_WRITE;
107 switch (pte1 & 0x00000003) {
116 access = PAGE_READ | PAGE_WRITE;
120 /* Keep the matching PTE informations */
123 if ((rw == 0 && (access & PAGE_READ)) ||
124 (rw == 1 && (access & PAGE_WRITE))) {
126 #if defined (DEBUG_MMU)
128 fprintf(logfile, "PTE access granted !\n");
132 /* Access right violation */
133 #if defined (DEBUG_MMU)
135 fprintf(logfile, "PTE access rejected\n");
145 static int pte_update_flags (mmu_ctx_t *ctx, target_ulong *pte1p,
150 /* Update page flags */
151 if (!(*pte1p & 0x00000100)) {
152 /* Update accessed flag */
153 *pte1p |= 0x00000100;
156 if (!(*pte1p & 0x00000080)) {
157 if (rw == 1 && ret == 0) {
158 /* Update changed flag */
159 *pte1p |= 0x00000080;
162 /* Force page fault for first write access */
163 ctx->prot &= ~PAGE_WRITE;
170 /* Software driven TLB helpers */
171 static int ppc6xx_tlb_getnum (CPUState *env, target_ulong eaddr,
172 int way, int is_code)
176 /* Select TLB num in a way from address */
177 nr = (eaddr >> TARGET_PAGE_BITS) & (env->tlb_per_way - 1);
179 nr += env->tlb_per_way * way;
180 /* 6xx have separate TLBs for instructions and data */
181 if (is_code && env->id_tlbs == 1)
187 void ppc6xx_tlb_invalidate_all (CPUState *env)
192 #if defined (DEBUG_SOFTWARE_TLB) && 0
194 fprintf(logfile, "Invalidate all TLBs\n");
197 /* Invalidate all defined software TLB */
199 if (env->id_tlbs == 1)
201 for (nr = 0; nr < max; nr++) {
202 tlb = &env->tlb[nr].tlb6;
203 #if !defined(FLUSH_ALL_TLBS)
204 tlb_flush_page(env, tlb->EPN);
206 pte_invalidate(&tlb->pte0);
208 #if defined(FLUSH_ALL_TLBS)
213 static inline void __ppc6xx_tlb_invalidate_virt (CPUState *env,
215 int is_code, int match_epn)
220 #if !defined(FLUSH_ALL_TLBS)
221 /* Invalidate ITLB + DTLB, all ways */
222 for (way = 0; way < env->nb_ways; way++) {
223 nr = ppc6xx_tlb_getnum(env, eaddr, way, is_code);
224 tlb = &env->tlb[nr].tlb6;
225 if (pte_is_valid(tlb->pte0) && (match_epn == 0 || eaddr == tlb->EPN)) {
226 #if defined (DEBUG_SOFTWARE_TLB)
228 fprintf(logfile, "TLB invalidate %d/%d " ADDRX "\n",
229 nr, env->nb_tlb, eaddr);
232 pte_invalidate(&tlb->pte0);
233 tlb_flush_page(env, tlb->EPN);
237 /* XXX: PowerPC specification say this is valid as well */
238 ppc6xx_tlb_invalidate_all(env);
242 void ppc6xx_tlb_invalidate_virt (CPUState *env, target_ulong eaddr,
245 __ppc6xx_tlb_invalidate_virt(env, eaddr, is_code, 0);
248 void ppc6xx_tlb_store (CPUState *env, target_ulong EPN, int way, int is_code,
249 target_ulong pte0, target_ulong pte1)
254 nr = ppc6xx_tlb_getnum(env, EPN, way, is_code);
255 tlb = &env->tlb[nr].tlb6;
256 #if defined (DEBUG_SOFTWARE_TLB)
258 fprintf(logfile, "Set TLB %d/%d EPN " ADDRX " PTE0 " ADDRX
259 " PTE1 " ADDRX "\n", nr, env->nb_tlb, EPN, pte0, pte1);
262 /* Invalidate any pending reference in Qemu for this virtual address */
263 __ppc6xx_tlb_invalidate_virt(env, EPN, is_code, 1);
267 /* Store last way for LRU mechanism */
271 static int ppc6xx_tlb_check (CPUState *env, mmu_ctx_t *ctx,
272 target_ulong eaddr, int rw, int access_type)
279 ret = -1; /* No TLB found */
280 for (way = 0; way < env->nb_ways; way++) {
281 nr = ppc6xx_tlb_getnum(env, eaddr, way,
282 access_type == ACCESS_CODE ? 1 : 0);
283 tlb = &env->tlb[nr].tlb6;
284 /* This test "emulates" the PTE index match for hardware TLBs */
285 if ((eaddr & TARGET_PAGE_MASK) != tlb->EPN) {
286 #if defined (DEBUG_SOFTWARE_TLB)
288 fprintf(logfile, "TLB %d/%d %s [" ADDRX " " ADDRX
291 pte_is_valid(tlb->pte0) ? "valid" : "inval",
292 tlb->EPN, tlb->EPN + TARGET_PAGE_SIZE, eaddr);
297 #if defined (DEBUG_SOFTWARE_TLB)
299 fprintf(logfile, "TLB %d/%d %s " ADDRX " <> " ADDRX " " ADDRX
302 pte_is_valid(tlb->pte0) ? "valid" : "inval",
303 tlb->EPN, eaddr, tlb->pte1,
304 rw ? 'S' : 'L', access_type == ACCESS_CODE ? 'I' : 'D');
307 switch (pte_check(ctx, tlb->pte0, tlb->pte1, 0, rw)) {
309 /* TLB inconsistency */
312 /* Access violation */
322 /* XXX: we should go on looping to check all TLBs consistency
323 * but we can speed-up the whole thing as the
324 * result would be undefined if TLBs are not consistent.
333 #if defined (DEBUG_SOFTWARE_TLB)
335 fprintf(logfile, "found TLB at addr 0x%08lx prot=0x%01x ret=%d\n",
336 ctx->raddr & TARGET_PAGE_MASK, ctx->prot, ret);
339 /* Update page flags */
340 pte_update_flags(ctx, &env->tlb[best].tlb6.pte1, ret, rw);
346 /* Perform BAT hit & translation */
347 static int get_bat (CPUState *env, mmu_ctx_t *ctx,
348 target_ulong virtual, int rw, int type)
350 target_ulong *BATlt, *BATut, *BATu, *BATl;
351 target_ulong base, BEPIl, BEPIu, bl;
355 #if defined (DEBUG_BATS)
357 fprintf(logfile, "%s: %cBAT v 0x" ADDRX "\n", __func__,
358 type == ACCESS_CODE ? 'I' : 'D', virtual);
363 BATlt = env->IBAT[1];
364 BATut = env->IBAT[0];
367 BATlt = env->DBAT[1];
368 BATut = env->DBAT[0];
371 #if defined (DEBUG_BATS)
373 fprintf(logfile, "%s...: %cBAT v 0x" ADDRX "\n", __func__,
374 type == ACCESS_CODE ? 'I' : 'D', virtual);
377 base = virtual & 0xFFFC0000;
378 for (i = 0; i < 4; i++) {
381 BEPIu = *BATu & 0xF0000000;
382 BEPIl = *BATu & 0x0FFE0000;
383 bl = (*BATu & 0x00001FFC) << 15;
384 #if defined (DEBUG_BATS)
386 fprintf(logfile, "%s: %cBAT%d v 0x" ADDRX " BATu 0x" ADDRX
387 " BATl 0x" ADDRX "\n",
388 __func__, type == ACCESS_CODE ? 'I' : 'D', i, virtual,
392 if ((virtual & 0xF0000000) == BEPIu &&
393 ((virtual & 0x0FFE0000) & ~bl) == BEPIl) {
395 if ((msr_pr == 0 && (*BATu & 0x00000002)) ||
396 (msr_pr == 1 && (*BATu & 0x00000001))) {
397 /* Get physical address */
398 ctx->raddr = (*BATl & 0xF0000000) |
399 ((virtual & 0x0FFE0000 & bl) | (*BATl & 0x0FFE0000)) |
400 (virtual & 0x0001F000);
401 if (*BATl & 0x00000001)
402 ctx->prot = PAGE_READ;
403 if (*BATl & 0x00000002)
404 ctx->prot = PAGE_WRITE | PAGE_READ;
405 #if defined (DEBUG_BATS)
407 fprintf(logfile, "BAT %d match: r 0x" ADDRX
409 i, ctx->raddr, ctx->prot & PAGE_READ ? 'R' : '-',
410 ctx->prot & PAGE_WRITE ? 'W' : '-');
419 #if defined (DEBUG_BATS)
420 printf("no BAT match for 0x" ADDRX ":\n", virtual);
421 for (i = 0; i < 4; i++) {
424 BEPIu = *BATu & 0xF0000000;
425 BEPIl = *BATu & 0x0FFE0000;
426 bl = (*BATu & 0x00001FFC) << 15;
427 printf("%s: %cBAT%d v 0x" ADDRX " BATu 0x" ADDRX
428 " BATl 0x" ADDRX " \n\t"
429 "0x" ADDRX " 0x" ADDRX " 0x" ADDRX "\n",
430 __func__, type == ACCESS_CODE ? 'I' : 'D', i, virtual,
431 *BATu, *BATl, BEPIu, BEPIl, bl);
439 /* PTE table lookup */
440 static int find_pte (mmu_ctx_t *ctx, int h, int rw)
442 target_ulong base, pte0, pte1;
446 ret = -1; /* No entry found */
447 base = ctx->pg_addr[h];
448 for (i = 0; i < 8; i++) {
449 pte0 = ldl_phys(base + (i * 8));
450 pte1 = ldl_phys(base + (i * 8) + 4);
451 #if defined (DEBUG_MMU)
453 fprintf(logfile, "Load pte from 0x" ADDRX " => 0x" ADDRX
454 " 0x" ADDRX " %d %d %d 0x" ADDRX "\n",
455 base + (i * 8), pte0, pte1,
456 pte0 >> 31, h, (pte0 >> 6) & 1, ctx->ptem);
459 switch (pte_check(ctx, pte0, pte1, h, rw)) {
461 /* PTE inconsistency */
464 /* Access violation */
474 /* XXX: we should go on looping to check all PTEs consistency
475 * but if we can speed-up the whole thing as the
476 * result would be undefined if PTEs are not consistent.
485 #if defined (DEBUG_MMU)
487 fprintf(logfile, "found PTE at addr 0x" ADDRX " prot=0x%01x "
489 ctx->raddr, ctx->prot, ret);
492 /* Update page flags */
494 if (pte_update_flags(ctx, &pte1, ret, rw) == 1)
495 stl_phys_notdirty(base + (good * 8) + 4, pte1);
501 static inline target_phys_addr_t get_pgaddr (target_phys_addr_t sdr1,
502 target_phys_addr_t hash,
503 target_phys_addr_t mask)
505 return (sdr1 & 0xFFFF0000) | (hash & mask);
508 /* Perform segment based translation */
509 static int get_segment (CPUState *env, mmu_ctx_t *ctx,
510 target_ulong eaddr, int rw, int type)
512 target_phys_addr_t sdr, hash, mask;
513 target_ulong sr, vsid, pgidx;
516 sr = env->sr[eaddr >> 28];
517 #if defined (DEBUG_MMU)
519 fprintf(logfile, "Check segment v=0x" ADDRX " %d 0x" ADDRX " nip=0x"
520 ADDRX " lr=0x" ADDRX " ir=%d dr=%d pr=%d %d t=%d\n",
521 eaddr, eaddr >> 28, sr, env->nip,
522 env->lr, msr_ir, msr_dr, msr_pr, rw, type);
525 ctx->key = (((sr & 0x20000000) && msr_pr == 1) ||
526 ((sr & 0x40000000) && msr_pr == 0)) ? 1 : 0;
527 if ((sr & 0x80000000) == 0) {
528 #if defined (DEBUG_MMU)
530 fprintf(logfile, "pte segment: key=%d n=0x" ADDRX "\n",
531 ctx->key, sr & 0x10000000);
533 /* Check if instruction fetch is allowed, if needed */
534 if (type != ACCESS_CODE || (sr & 0x10000000) == 0) {
535 /* Page address translation */
536 pgidx = (eaddr >> TARGET_PAGE_BITS) & 0xFFFF;
537 vsid = sr & 0x00FFFFFF;
538 hash = ((vsid ^ pgidx) & 0x0007FFFF) << 6;
539 /* Primary table address */
541 mask = ((sdr & 0x000001FF) << 16) | 0xFFC0;
542 ctx->pg_addr[0] = get_pgaddr(sdr, hash, mask);
543 /* Secondary table address */
544 hash = (~hash) & 0x01FFFFC0;
545 ctx->pg_addr[1] = get_pgaddr(sdr, hash, mask);
546 ctx->ptem = (vsid << 7) | (pgidx >> 10);
547 /* Initialize real address with an invalid value */
548 ctx->raddr = (target_ulong)-1;
549 if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
550 /* Software TLB search */
551 ret = ppc6xx_tlb_check(env, ctx, eaddr, rw, type);
553 #if defined (DEBUG_MMU)
555 fprintf(logfile, "0 sdr1=0x" ADDRX " vsid=0x%06x "
556 "api=0x%04x hash=0x%07x pg_addr=0x" ADDRX "\n",
557 sdr, vsid, pgidx, hash, ctx->pg_addr[0]);
560 /* Primary table lookup */
561 ret = find_pte(ctx, 0, rw);
563 /* Secondary table lookup */
564 #if defined (DEBUG_MMU)
565 if (eaddr != 0xEFFFFFFF && loglevel > 0) {
567 "1 sdr1=0x" ADDRX " vsid=0x%06x api=0x%04x "
568 "hash=0x%05x pg_addr=0x" ADDRX "\n",
569 sdr, vsid, pgidx, hash, ctx->pg_addr[1]);
572 ret2 = find_pte(ctx, 1, rw);
578 #if defined (DEBUG_MMU)
580 fprintf(logfile, "No access allowed\n");
585 #if defined (DEBUG_MMU)
587 fprintf(logfile, "direct store...\n");
589 /* Direct-store segment : absolutely *BUGGY* for now */
592 /* Integer load/store : only access allowed */
595 /* No code fetch is allowed in direct-store areas */
598 /* Floating point load/store */
601 /* lwarx, ldarx or srwcx. */
604 /* dcba, dcbt, dcbtst, dcbf, dcbi, dcbst, dcbz, or icbi */
605 /* Should make the instruction do no-op.
606 * As it already do no-op, it's quite easy :-)
615 fprintf(logfile, "ERROR: instruction should not need "
616 "address translation\n");
618 printf("ERROR: instruction should not need "
619 "address translation\n");
622 if ((rw == 1 || ctx->key != 1) && (rw == 0 || ctx->key != 0)) {
633 int mmu4xx_get_physical_address (CPUState *env, mmu_ctx_t *ctx,
634 target_ulong address, int rw, int access_type)
637 target_phys_addr_t raddr;
639 int i, ret, zsel, zpr;
642 for (i = 0; i < env->nb_tlb; i++) {
643 tlb = &env->tlb[i].tlbe;
644 /* Check valid flag */
645 if (!(tlb->prot & PAGE_VALID)) {
647 fprintf(logfile, "%s: TLB %d not valid\n", __func__, i);
650 mask = ~(tlb->size - 1);
652 fprintf(logfile, "%s: TLB %d address " ADDRX " PID %d <=> "
653 ADDRX " " ADDRX " %d\n",
654 __func__, i, address, (int)env->spr[SPR_40x_PID],
655 tlb->EPN, mask, (int)tlb->PID);
658 if (tlb->PID != 0 && tlb->PID != env->spr[SPR_40x_PID])
660 /* Check effective address */
661 if ((address & mask) != tlb->EPN)
663 raddr = (tlb->RPN & mask) | (address & ~mask);
664 zsel = (tlb->attr >> 4) & 0xF;
665 zpr = (env->spr[SPR_40x_ZPR] >> (28 - (2 * zsel))) & 0x3;
667 fprintf(logfile, "%s: TLB %d zsel %d zpr %d rw %d attr %08x\n",
668 __func__, i, zsel, zpr, rw, tlb->attr);
670 if (access_type == ACCESS_CODE) {
671 /* Check execute enable bit */
682 /* Check from TLB entry */
683 if (!(tlb->prot & PAGE_EXEC)) {
686 if (tlb->prot & PAGE_WRITE)
687 ctx->prot = PAGE_READ | PAGE_WRITE;
689 ctx->prot = PAGE_READ;
694 /* All accesses granted */
696 ctx->prot = PAGE_READ | PAGE_WRITE;
710 /* Check from TLB entry */
711 /* Check write protection bit */
712 if (rw && !(tlb->prot & PAGE_WRITE)) {
716 if (tlb->prot & PAGE_WRITE)
717 ctx->prot = PAGE_READ | PAGE_WRITE;
719 ctx->prot = PAGE_READ;
723 /* All accesses granted */
725 ctx->prot = PAGE_READ | PAGE_WRITE;
732 fprintf(logfile, "%s: access granted " ADDRX " => " REGX
733 " %d\n", __func__, address, ctx->raddr, ctx->prot);
742 static int check_physical (CPUState *env, mmu_ctx_t *ctx,
743 target_ulong eaddr, int rw)
748 ctx->prot = PAGE_READ;
750 if (unlikely(msr_pe != 0 && PPC_MMU(env) == PPC_FLAGS_MMU_403)) {
751 /* 403 family add some particular protections,
752 * using PBL/PBU registers for accesses with no translation.
755 /* Check PLB validity */
756 (env->pb[0] < env->pb[1] &&
757 /* and address in plb area */
758 eaddr >= env->pb[0] && eaddr < env->pb[1]) ||
759 (env->pb[2] < env->pb[3] &&
760 eaddr >= env->pb[2] && eaddr < env->pb[3]) ? 1 : 0;
761 if (in_plb ^ msr_px) {
762 /* Access in protected area */
764 /* Access is not allowed */
768 /* Read-write access is allowed */
769 ctx->prot |= PAGE_WRITE;
772 ctx->prot |= PAGE_WRITE;
778 int get_physical_address (CPUState *env, mmu_ctx_t *ctx, target_ulong eaddr,
779 int rw, int access_type, int check_BATs)
784 fprintf(logfile, "%s\n", __func__);
787 if ((access_type == ACCESS_CODE && msr_ir == 0) ||
788 (access_type != ACCESS_CODE && msr_dr == 0)) {
789 /* No address translation */
790 ret = check_physical(env, ctx, eaddr, rw);
792 switch (PPC_MMU(env)) {
793 case PPC_FLAGS_MMU_32B:
794 case PPC_FLAGS_MMU_SOFT_6xx:
795 /* Try to find a BAT */
798 ret = get_bat(env, ctx, eaddr, rw, access_type);
800 /* We didn't match any BAT entry */
801 ret = get_segment(env, ctx, eaddr, rw, access_type);
804 case PPC_FLAGS_MMU_SOFT_4xx:
805 ret = mmu4xx_get_physical_address(env, ctx, eaddr,
810 cpu_abort(env, "MMU model not implemented\n");
816 fprintf(logfile, "%s address " ADDRX " => " ADDRX "\n",
817 __func__, eaddr, ctx->raddr);
824 target_phys_addr_t cpu_get_phys_page_debug (CPUState *env, target_ulong addr)
828 if (unlikely(get_physical_address(env, &ctx, addr, 0, ACCESS_INT, 1) != 0))
831 return ctx.raddr & TARGET_PAGE_MASK;
834 /* Perform address translation */
835 int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
836 int is_user, int is_softmmu)
839 int exception = 0, error_code = 0;
846 access_type = ACCESS_CODE;
849 /* XXX: put correct access by using cpu_restore_state()
851 access_type = ACCESS_INT;
852 // access_type = env->access_type;
854 ret = get_physical_address(env, &ctx, address, rw, access_type, 1);
856 ret = tlb_set_page(env, address & TARGET_PAGE_MASK,
857 ctx.raddr & TARGET_PAGE_MASK, ctx.prot,
858 is_user, is_softmmu);
859 } else if (ret < 0) {
860 #if defined (DEBUG_MMU)
862 cpu_dump_state(env, logfile, fprintf, 0);
864 if (access_type == ACCESS_CODE) {
865 exception = EXCP_ISI;
868 /* No matches in page tables or TLB */
869 if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
870 exception = EXCP_I_TLBMISS;
871 env->spr[SPR_IMISS] = address;
872 env->spr[SPR_ICMP] = 0x80000000 | ctx.ptem;
873 error_code = 1 << 18;
875 } else if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_4xx)) {
876 exception = EXCP_40x_ITLBMISS;
878 env->spr[SPR_40x_DEAR] = address;
879 env->spr[SPR_40x_ESR] = 0x00000000;
881 error_code = 0x40000000;
885 /* Access rights violation */
886 error_code = 0x08000000;
889 /* No execute protection violation */
890 error_code = 0x10000000;
893 /* Direct store exception */
894 /* No code fetch is allowed in direct-store areas */
895 error_code = 0x10000000;
898 /* No match in segment table */
899 exception = EXCP_ISEG;
904 exception = EXCP_DSI;
907 /* No matches in page tables or TLB */
908 if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
910 exception = EXCP_DS_TLBMISS;
911 error_code = 1 << 16;
913 exception = EXCP_DL_TLBMISS;
916 env->spr[SPR_DMISS] = address;
917 env->spr[SPR_DCMP] = 0x80000000 | ctx.ptem;
919 error_code |= ctx.key << 19;
920 env->spr[SPR_HASH1] = ctx.pg_addr[0];
921 env->spr[SPR_HASH2] = ctx.pg_addr[1];
922 /* Do not alter DAR nor DSISR */
924 } else if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_4xx)) {
925 exception = EXCP_40x_DTLBMISS;
927 env->spr[SPR_40x_DEAR] = address;
929 env->spr[SPR_40x_ESR] = 0x00800000;
931 env->spr[SPR_40x_ESR] = 0x00000000;
933 error_code = 0x40000000;
937 /* Access rights violation */
938 error_code = 0x08000000;
941 /* Direct store exception */
942 switch (access_type) {
944 /* Floating point load/store */
945 exception = EXCP_ALIGN;
946 error_code = EXCP_ALIGN_FP;
949 /* lwarx, ldarx or srwcx. */
950 error_code = 0x04000000;
954 error_code = 0x04100000;
957 printf("DSI: invalid exception (%d)\n", ret);
958 exception = EXCP_PROGRAM;
959 error_code = EXCP_INVAL | EXCP_INVAL_INVAL;
964 /* No match in segment table */
965 exception = EXCP_DSEG;
969 if (exception == EXCP_DSI && rw == 1)
970 error_code |= 0x02000000;
971 /* Store fault address */
972 env->spr[SPR_DAR] = address;
973 env->spr[SPR_DSISR] = error_code;
977 printf("%s: set exception to %d %02x\n",
978 __func__, exception, error_code);
980 env->exception_index = exception;
981 env->error_code = error_code;
988 /*****************************************************************************/
989 /* BATs management */
990 #if !defined(FLUSH_ALL_TLBS)
991 static inline void do_invalidate_BAT (CPUPPCState *env,
992 target_ulong BATu, target_ulong mask)
994 target_ulong base, end, page;
996 base = BATu & ~0x0001FFFF;
997 end = base + mask + 0x00020000;
998 #if defined (DEBUG_BATS)
1000 fprintf(logfile, "Flush BAT from " ADDRX " to " ADDRX " (" ADDRX ")\n",
1004 for (page = base; page != end; page += TARGET_PAGE_SIZE)
1005 tlb_flush_page(env, page);
1006 #if defined (DEBUG_BATS)
1008 fprintf(logfile, "Flush done\n");
1013 static inline void dump_store_bat (CPUPPCState *env, char ID, int ul, int nr,
1016 #if defined (DEBUG_BATS)
1017 if (loglevel != 0) {
1018 fprintf(logfile, "Set %cBAT%d%c to 0x" ADDRX " (0x" ADDRX ")\n",
1019 ID, nr, ul == 0 ? 'u' : 'l', value, env->nip);
1024 target_ulong do_load_ibatu (CPUPPCState *env, int nr)
1026 return env->IBAT[0][nr];
1029 target_ulong do_load_ibatl (CPUPPCState *env, int nr)
1031 return env->IBAT[1][nr];
1034 void do_store_ibatu (CPUPPCState *env, int nr, target_ulong value)
1038 dump_store_bat(env, 'I', 0, nr, value);
1039 if (env->IBAT[0][nr] != value) {
1040 mask = (value << 15) & 0x0FFE0000UL;
1041 #if !defined(FLUSH_ALL_TLBS)
1042 do_invalidate_BAT(env, env->IBAT[0][nr], mask);
1044 /* When storing valid upper BAT, mask BEPI and BRPN
1045 * and invalidate all TLBs covered by this BAT
1047 mask = (value << 15) & 0x0FFE0000UL;
1048 env->IBAT[0][nr] = (value & 0x00001FFFUL) |
1049 (value & ~0x0001FFFFUL & ~mask);
1050 env->IBAT[1][nr] = (env->IBAT[1][nr] & 0x0000007B) |
1051 (env->IBAT[1][nr] & ~0x0001FFFF & ~mask);
1052 #if !defined(FLUSH_ALL_TLBS)
1053 do_invalidate_BAT(env, env->IBAT[0][nr], mask);
1060 void do_store_ibatl (CPUPPCState *env, int nr, target_ulong value)
1062 dump_store_bat(env, 'I', 1, nr, value);
1063 env->IBAT[1][nr] = value;
1066 target_ulong do_load_dbatu (CPUPPCState *env, int nr)
1068 return env->DBAT[0][nr];
1071 target_ulong do_load_dbatl (CPUPPCState *env, int nr)
1073 return env->DBAT[1][nr];
1076 void do_store_dbatu (CPUPPCState *env, int nr, target_ulong value)
1080 dump_store_bat(env, 'D', 0, nr, value);
1081 if (env->DBAT[0][nr] != value) {
1082 /* When storing valid upper BAT, mask BEPI and BRPN
1083 * and invalidate all TLBs covered by this BAT
1085 mask = (value << 15) & 0x0FFE0000UL;
1086 #if !defined(FLUSH_ALL_TLBS)
1087 do_invalidate_BAT(env, env->DBAT[0][nr], mask);
1089 mask = (value << 15) & 0x0FFE0000UL;
1090 env->DBAT[0][nr] = (value & 0x00001FFFUL) |
1091 (value & ~0x0001FFFFUL & ~mask);
1092 env->DBAT[1][nr] = (env->DBAT[1][nr] & 0x0000007B) |
1093 (env->DBAT[1][nr] & ~0x0001FFFF & ~mask);
1094 #if !defined(FLUSH_ALL_TLBS)
1095 do_invalidate_BAT(env, env->DBAT[0][nr], mask);
1102 void do_store_dbatl (CPUPPCState *env, int nr, target_ulong value)
1104 dump_store_bat(env, 'D', 1, nr, value);
1105 env->DBAT[1][nr] = value;
1108 /*****************************************************************************/
1109 /* Special registers manipulation */
1110 #if defined(TARGET_PPC64)
1111 target_ulong ppc_load_asr (CPUPPCState *env)
1116 void ppc_store_asr (CPUPPCState *env, target_ulong value)
1118 if (env->asr != value) {
1125 target_ulong do_load_sdr1 (CPUPPCState *env)
1130 void do_store_sdr1 (CPUPPCState *env, target_ulong value)
1132 #if defined (DEBUG_MMU)
1133 if (loglevel != 0) {
1134 fprintf(logfile, "%s: 0x" ADDRX "\n", __func__, value);
1137 if (env->sdr1 != value) {
1143 target_ulong do_load_sr (CPUPPCState *env, int srnum)
1145 return env->sr[srnum];
1148 void do_store_sr (CPUPPCState *env, int srnum, target_ulong value)
1150 #if defined (DEBUG_MMU)
1151 if (loglevel != 0) {
1152 fprintf(logfile, "%s: reg=%d 0x" ADDRX " " ADDRX "\n",
1153 __func__, srnum, value, env->sr[srnum]);
1156 if (env->sr[srnum] != value) {
1157 env->sr[srnum] = value;
1158 #if !defined(FLUSH_ALL_TLBS) && 0
1160 target_ulong page, end;
1161 /* Invalidate 256 MB of virtual memory */
1162 page = (16 << 20) * srnum;
1163 end = page + (16 << 20);
1164 for (; page != end; page += TARGET_PAGE_SIZE)
1165 tlb_flush_page(env, page);
1172 #endif /* !defined (CONFIG_USER_ONLY) */
1174 uint32_t ppc_load_xer (CPUPPCState *env)
1176 return (xer_so << XER_SO) |
1177 (xer_ov << XER_OV) |
1178 (xer_ca << XER_CA) |
1179 (xer_bc << XER_BC) |
1180 (xer_cmp << XER_CMP);
1183 void ppc_store_xer (CPUPPCState *env, uint32_t value)
1185 xer_so = (value >> XER_SO) & 0x01;
1186 xer_ov = (value >> XER_OV) & 0x01;
1187 xer_ca = (value >> XER_CA) & 0x01;
1188 xer_cmp = (value >> XER_CMP) & 0xFF;
1189 xer_bc = (value >> XER_BC) & 0x7F;
1192 /* Swap temporary saved registers with GPRs */
1193 static inline void swap_gpr_tgpr (CPUPPCState *env)
1198 env->gpr[0] = env->tgpr[0];
1201 env->gpr[1] = env->tgpr[1];
1204 env->gpr[2] = env->tgpr[2];
1207 env->gpr[3] = env->tgpr[3];
1211 /* GDBstub can read and write MSR... */
1212 target_ulong do_load_msr (CPUPPCState *env)
1215 #if defined (TARGET_PPC64)
1216 ((target_ulong)msr_sf << MSR_SF) |
1217 ((target_ulong)msr_isf << MSR_ISF) |
1218 ((target_ulong)msr_hv << MSR_HV) |
1220 ((target_ulong)msr_ucle << MSR_UCLE) |
1221 ((target_ulong)msr_vr << MSR_VR) | /* VR / SPE */
1222 ((target_ulong)msr_ap << MSR_AP) |
1223 ((target_ulong)msr_sa << MSR_SA) |
1224 ((target_ulong)msr_key << MSR_KEY) |
1225 ((target_ulong)msr_pow << MSR_POW) | /* POW / WE */
1226 ((target_ulong)msr_tlb << MSR_TLB) | /* TLB / TGPE / CE */
1227 ((target_ulong)msr_ile << MSR_ILE) |
1228 ((target_ulong)msr_ee << MSR_EE) |
1229 ((target_ulong)msr_pr << MSR_PR) |
1230 ((target_ulong)msr_fp << MSR_FP) |
1231 ((target_ulong)msr_me << MSR_ME) |
1232 ((target_ulong)msr_fe0 << MSR_FE0) |
1233 ((target_ulong)msr_se << MSR_SE) | /* SE / DWE / UBLE */
1234 ((target_ulong)msr_be << MSR_BE) | /* BE / DE */
1235 ((target_ulong)msr_fe1 << MSR_FE1) |
1236 ((target_ulong)msr_al << MSR_AL) |
1237 ((target_ulong)msr_ip << MSR_IP) |
1238 ((target_ulong)msr_ir << MSR_IR) | /* IR / IS */
1239 ((target_ulong)msr_dr << MSR_DR) | /* DR / DS */
1240 ((target_ulong)msr_pe << MSR_PE) | /* PE / EP */
1241 ((target_ulong)msr_px << MSR_PX) | /* PX / PMM */
1242 ((target_ulong)msr_ri << MSR_RI) |
1243 ((target_ulong)msr_le << MSR_LE);
1246 void do_store_msr (CPUPPCState *env, target_ulong value)
1250 value &= env->msr_mask;
1251 if (((value >> MSR_IR) & 1) != msr_ir ||
1252 ((value >> MSR_DR) & 1) != msr_dr) {
1253 /* Flush all tlb when changing translation mode */
1255 env->interrupt_request |= CPU_INTERRUPT_EXITTB;
1258 if (loglevel != 0) {
1259 fprintf(logfile, "%s: T0 %08lx\n", __func__, value);
1262 switch (PPC_EXCP(env)) {
1263 case PPC_FLAGS_EXCP_602:
1264 case PPC_FLAGS_EXCP_603:
1265 if (((value >> MSR_TGPR) & 1) != msr_tgpr) {
1266 /* Swap temporary saved registers with GPRs */
1273 #if defined (TARGET_PPC64)
1274 msr_sf = (value >> MSR_SF) & 1;
1275 msr_isf = (value >> MSR_ISF) & 1;
1276 msr_hv = (value >> MSR_HV) & 1;
1278 msr_ucle = (value >> MSR_UCLE) & 1;
1279 msr_vr = (value >> MSR_VR) & 1; /* VR / SPE */
1280 msr_ap = (value >> MSR_AP) & 1;
1281 msr_sa = (value >> MSR_SA) & 1;
1282 msr_key = (value >> MSR_KEY) & 1;
1283 msr_pow = (value >> MSR_POW) & 1; /* POW / WE */
1284 msr_tlb = (value >> MSR_TLB) & 1; /* TLB / TGPR / CE */
1285 msr_ile = (value >> MSR_ILE) & 1;
1286 msr_ee = (value >> MSR_EE) & 1;
1287 msr_pr = (value >> MSR_PR) & 1;
1288 msr_fp = (value >> MSR_FP) & 1;
1289 msr_me = (value >> MSR_ME) & 1;
1290 msr_fe0 = (value >> MSR_FE0) & 1;
1291 msr_se = (value >> MSR_SE) & 1; /* SE / DWE / UBLE */
1292 msr_be = (value >> MSR_BE) & 1; /* BE / DE */
1293 msr_fe1 = (value >> MSR_FE1) & 1;
1294 msr_al = (value >> MSR_AL) & 1;
1295 msr_ip = (value >> MSR_IP) & 1;
1296 msr_ir = (value >> MSR_IR) & 1; /* IR / IS */
1297 msr_dr = (value >> MSR_DR) & 1; /* DR / DS */
1298 msr_pe = (value >> MSR_PE) & 1; /* PE / EP */
1299 msr_px = (value >> MSR_PX) & 1; /* PX / PMM */
1300 msr_ri = (value >> MSR_RI) & 1;
1301 msr_le = (value >> MSR_LE) & 1;
1302 do_compute_hflags(env);
1305 switch (PPC_EXCP(env)) {
1306 case PPC_FLAGS_EXCP_603:
1307 /* Don't handle SLEEP mode: we should disable all clocks...
1308 * No dynamic power-management.
1310 if (msr_pow == 1 && (env->spr[SPR_HID0] & 0x00C00000) != 0)
1313 case PPC_FLAGS_EXCP_604:
1317 case PPC_FLAGS_EXCP_7x0:
1318 if (msr_pow == 1 && (env->spr[SPR_HID0] & 0x00E00000) != 0)
1325 /* power save: exit cpu loop */
1327 env->exception_index = EXCP_HLT;
1332 #if defined(TARGET_PPC64)
1333 void ppc_store_msr_32 (CPUPPCState *env, uint32_t value)
1336 (do_load_msr(env) & ~0xFFFFFFFFULL) | (value & 0xFFFFFFFF));
1340 void do_compute_hflags (CPUPPCState *env)
1342 /* Compute current hflags */
1343 env->hflags = (msr_cm << MSR_CM) | (msr_vr << MSR_VR) |
1344 (msr_ap << MSR_AP) | (msr_sa << MSR_SA) | (msr_pr << MSR_PR) |
1345 (msr_fp << MSR_FP) | (msr_fe0 << MSR_FE0) | (msr_se << MSR_SE) |
1346 (msr_be << MSR_BE) | (msr_fe1 << MSR_FE1) | (msr_le << MSR_LE);
1347 #if defined (TARGET_PPC64)
1348 /* No care here: PowerPC 64 MSR_SF means the same as MSR_CM for BookE */
1349 env->hflags |= (msr_sf << (MSR_SF - 32)) | (msr_hv << (MSR_HV - 32));
1353 /*****************************************************************************/
1354 /* Exception processing */
1355 #if defined (CONFIG_USER_ONLY)
1356 void do_interrupt (CPUState *env)
1358 env->exception_index = -1;
1361 void ppc_hw_interrupt (CPUState *env)
1363 env->exception_index = -1;
1365 #else /* defined (CONFIG_USER_ONLY) */
1366 static void dump_syscall(CPUState *env)
1368 fprintf(logfile, "syscall r0=0x" REGX " r3=0x" REGX " r4=0x" REGX
1369 " r5=0x" REGX " r6=0x" REGX " nip=0x" ADDRX "\n",
1370 env->gpr[0], env->gpr[3], env->gpr[4],
1371 env->gpr[5], env->gpr[6], env->nip);
1374 void do_interrupt (CPUState *env)
1376 target_ulong msr, *srr_0, *srr_1, *asrr_0, *asrr_1;
1379 excp = env->exception_index;
1380 msr = do_load_msr(env);
1381 /* The default is to use SRR0 & SRR1 to save the exception context */
1382 srr_0 = &env->spr[SPR_SRR0];
1383 srr_1 = &env->spr[SPR_SRR1];
1386 #if defined (DEBUG_EXCEPTIONS)
1387 if ((excp == EXCP_PROGRAM || excp == EXCP_DSI) && msr_pr == 1) {
1388 if (loglevel != 0) {
1390 "Raise exception at 0x" ADDRX " => 0x%08x (%02x)\n",
1391 env->nip, excp, env->error_code);
1392 cpu_dump_state(env, logfile, fprintf, 0);
1396 if (loglevel & CPU_LOG_INT) {
1397 fprintf(logfile, "Raise exception at 0x" ADDRX " => 0x%08x (%02x)\n",
1398 env->nip, excp, env->error_code);
1402 /* Generate informations in save/restore registers */
1404 /* Generic PowerPC exceptions */
1405 case EXCP_RESET: /* 0x0100 */
1406 switch (PPC_EXCP(env)) {
1407 case PPC_FLAGS_EXCP_40x:
1408 srr_0 = &env->spr[SPR_40x_SRR2];
1409 srr_1 = &env->spr[SPR_40x_SRR3];
1411 case PPC_FLAGS_EXCP_BOOKE:
1413 srr_0 = &env->spr[SPR_BOOKE_CSRR0];
1414 srr_1 = &env->spr[SPR_BOOKE_CSRR1];
1423 case EXCP_MACHINE_CHECK: /* 0x0200 */
1424 switch (PPC_EXCP(env)) {
1425 case PPC_FLAGS_EXCP_40x:
1426 srr_0 = &env->spr[SPR_40x_SRR2];
1427 srr_1 = &env->spr[SPR_40x_SRR3];
1429 case PPC_FLAGS_EXCP_BOOKE:
1431 srr_0 = &env->spr[SPR_BOOKE_MCSRR0];
1432 srr_1 = &env->spr[SPR_BOOKE_MCSRR1];
1433 asrr_0 = &env->spr[SPR_BOOKE_CSRR0];
1434 asrr_1 = &env->spr[SPR_BOOKE_CSRR1];
1442 case EXCP_DSI: /* 0x0300 */
1443 /* Store exception cause */
1444 /* data location address has been stored
1445 * when the fault has been detected
1449 #if defined (DEBUG_EXCEPTIONS)
1451 fprintf(logfile, "DSI exception: DSISR=0x" ADDRX" DAR=0x" ADDRX
1452 "\n", env->spr[SPR_DSISR], env->spr[SPR_DAR]);
1456 case EXCP_ISI: /* 0x0400 */
1457 /* Store exception cause */
1460 msr |= env->error_code;
1461 #if defined (DEBUG_EXCEPTIONS)
1462 if (loglevel != 0) {
1463 fprintf(logfile, "ISI exception: msr=0x" ADDRX ", nip=0x" ADDRX
1464 "\n", msr, env->nip);
1468 case EXCP_EXTERNAL: /* 0x0500 */
1471 case EXCP_ALIGN: /* 0x0600 */
1472 if (likely(PPC_EXCP(env) != PPC_FLAGS_EXCP_601)) {
1473 /* Store exception cause */
1475 /* Get rS/rD and rA from faulting opcode */
1476 env->spr[SPR_DSISR] |=
1477 (ldl_code((env->nip - 4)) & 0x03FF0000) >> 16;
1478 /* data location address has been stored
1479 * when the fault has been detected
1482 /* IO error exception on PowerPC 601 */
1485 "601 IO error exception is not implemented yet !\n");
1488 case EXCP_PROGRAM: /* 0x0700 */
1491 switch (env->error_code & ~0xF) {
1493 if (msr_fe0 == 0 && msr_fe1 == 0) {
1494 #if defined (DEBUG_EXCEPTIONS)
1496 fprintf(logfile, "Ignore floating point exception\n");
1503 env->fpscr[7] |= 0x8;
1504 /* Finally, update FEX */
1505 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
1506 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
1507 env->fpscr[7] |= 0x4;
1510 #if defined (DEBUG_EXCEPTIONS)
1512 fprintf(logfile, "Invalid instruction at 0x" ADDRX "\n",
1526 /* Should never occur */
1531 case EXCP_NO_FP: /* 0x0800 */
1537 case EXCP_SYSCALL: /* 0x0C00 */
1539 /* NOTE: this is a temporary hack to support graphics OSI
1540 calls from the MOL driver */
1541 if (env->gpr[3] == 0x113724fa && env->gpr[4] == 0x77810f9b &&
1543 if (env->osi_call(env) != 0)
1546 if (loglevel & CPU_LOG_INT) {
1550 case EXCP_TRACE: /* 0x0D00 */
1552 case EXCP_PERF: /* 0x0F00 */
1555 "Performance counter exception is not implemented yet !\n");
1557 /* 32 bits PowerPC specific exceptions */
1558 case EXCP_FP_ASSIST: /* 0x0E00 */
1560 cpu_abort(env, "Floating point assist exception "
1561 "is not implemented yet !\n");
1563 /* 64 bits PowerPC exceptions */
1564 case EXCP_DSEG: /* 0x0380 */
1566 cpu_abort(env, "Data segment exception is not implemented yet !\n");
1568 case EXCP_ISEG: /* 0x0480 */
1571 "Instruction segment exception is not implemented yet !\n");
1573 case EXCP_HDECR: /* 0x0980 */
1575 cpu_abort(env, "Hypervisor decrementer exception is not implemented "
1578 /* Implementation specific exceptions */
1580 if (likely(env->spr[SPR_PVR] == CPU_PPC_G2 ||
1581 env->spr[SPR_PVR] == CPU_PPC_G2LE)) {
1582 /* Critical interrupt on G2 */
1584 cpu_abort(env, "G2 critical interrupt is not implemented yet !\n");
1587 cpu_abort(env, "Invalid exception 0x0A00 !\n");
1592 switch (PPC_EXCP(env)) {
1593 case PPC_FLAGS_EXCP_40x:
1594 /* APU unavailable on 405 */
1597 "APU unavailable exception is not implemented yet !\n");
1599 case PPC_FLAGS_EXCP_74xx:
1600 /* Altivec unavailable */
1602 cpu_abort(env, "Altivec unavailable exception "
1603 "is not implemented yet !\n");
1606 cpu_abort(env, "Invalid exception 0x0F20 !\n");
1612 switch (PPC_EXCP(env)) {
1613 case PPC_FLAGS_EXCP_40x:
1616 #if defined (DEBUG_EXCEPTIONS)
1618 fprintf(logfile, "PIT exception\n");
1621 case PPC_FLAGS_EXCP_602:
1622 case PPC_FLAGS_EXCP_603:
1623 /* ITLBMISS on 602/603 */
1625 case PPC_FLAGS_EXCP_7x5:
1626 /* ITLBMISS on 745/755 */
1629 cpu_abort(env, "Invalid exception 0x1000 !\n");
1635 switch (PPC_EXCP(env)) {
1636 case PPC_FLAGS_EXCP_40x:
1639 #if defined (DEBUG_EXCEPTIONS)
1641 fprintf(logfile, "FIT exception\n");
1645 cpu_abort(env, "Invalid exception 0x1010 !\n");
1651 switch (PPC_EXCP(env)) {
1652 case PPC_FLAGS_EXCP_40x:
1653 /* Watchdog on 4xx */
1655 #if defined (DEBUG_EXCEPTIONS)
1657 fprintf(logfile, "WDT exception\n");
1660 case PPC_FLAGS_EXCP_BOOKE:
1661 srr_0 = &env->spr[SPR_BOOKE_CSRR0];
1662 srr_1 = &env->spr[SPR_BOOKE_CSRR1];
1665 cpu_abort(env, "Invalid exception 0x1020 !\n");
1671 switch (PPC_EXCP(env)) {
1672 case PPC_FLAGS_EXCP_40x:
1673 /* DTLBMISS on 4xx */
1676 case PPC_FLAGS_EXCP_602:
1677 case PPC_FLAGS_EXCP_603:
1678 /* DLTLBMISS on 602/603 */
1680 case PPC_FLAGS_EXCP_7x5:
1681 /* DLTLBMISS on 745/755 */
1684 cpu_abort(env, "Invalid exception 0x1100 !\n");
1690 switch (PPC_EXCP(env)) {
1691 case PPC_FLAGS_EXCP_40x:
1692 /* ITLBMISS on 4xx */
1695 case PPC_FLAGS_EXCP_602:
1696 case PPC_FLAGS_EXCP_603:
1697 /* DSTLBMISS on 602/603 */
1699 /* Swap temporary saved registers with GPRs */
1702 #if defined (DEBUG_SOFTWARE_TLB)
1703 if (loglevel != 0) {
1704 const unsigned char *es;
1705 target_ulong *miss, *cmp;
1707 if (excp == 0x1000) {
1710 miss = &env->spr[SPR_IMISS];
1711 cmp = &env->spr[SPR_ICMP];
1718 miss = &env->spr[SPR_DMISS];
1719 cmp = &env->spr[SPR_DCMP];
1721 fprintf(logfile, "6xx %sTLB miss: %cM " ADDRX " %cC " ADDRX
1722 " H1 " ADDRX " H2 " ADDRX " " ADDRX "\n",
1723 es, en, *miss, en, *cmp,
1724 env->spr[SPR_HASH1], env->spr[SPR_HASH2],
1729 case PPC_FLAGS_EXCP_7x5:
1730 /* DSTLBMISS on 745/755 */
1733 msr |= env->crf[0] << 28;
1734 msr |= env->error_code; /* key, D/I, S/L bits */
1735 /* Set way using a LRU mechanism */
1736 msr |= ((env->last_way + 1) & (env->nb_ways - 1)) << 17;
1739 cpu_abort(env, "Invalid exception 0x1200 !\n");
1744 switch (PPC_EXCP(env)) {
1745 case PPC_FLAGS_EXCP_601:
1746 case PPC_FLAGS_EXCP_602:
1747 case PPC_FLAGS_EXCP_603:
1748 case PPC_FLAGS_EXCP_604:
1749 case PPC_FLAGS_EXCP_7x0:
1750 case PPC_FLAGS_EXCP_7x5:
1751 /* IABR on 6xx/7xx */
1753 cpu_abort(env, "IABR exception is not implemented yet !\n");
1756 cpu_abort(env, "Invalid exception 0x1300 !\n");
1761 switch (PPC_EXCP(env)) {
1762 case PPC_FLAGS_EXCP_601:
1763 case PPC_FLAGS_EXCP_602:
1764 case PPC_FLAGS_EXCP_603:
1765 case PPC_FLAGS_EXCP_604:
1766 case PPC_FLAGS_EXCP_7x0:
1767 case PPC_FLAGS_EXCP_7x5:
1768 /* SMI on 6xx/7xx */
1770 cpu_abort(env, "SMI exception is not implemented yet !\n");
1773 cpu_abort(env, "Invalid exception 0x1400 !\n");
1778 switch (PPC_EXCP(env)) {
1779 case PPC_FLAGS_EXCP_602:
1780 /* Watchdog on 602 */
1783 "602 watchdog exception is not implemented yet !\n");
1785 case PPC_FLAGS_EXCP_970:
1786 /* Soft patch exception on 970 */
1789 "970 soft-patch exception is not implemented yet !\n");
1791 case PPC_FLAGS_EXCP_74xx:
1792 /* VPU assist on 74xx */
1794 cpu_abort(env, "VPU assist exception is not implemented yet !\n");
1797 cpu_abort(env, "Invalid exception 0x1500 !\n");
1802 switch (PPC_EXCP(env)) {
1803 case PPC_FLAGS_EXCP_602:
1804 /* Emulation trap on 602 */
1806 cpu_abort(env, "602 emulation trap exception "
1807 "is not implemented yet !\n");
1809 case PPC_FLAGS_EXCP_970:
1810 /* Maintenance exception on 970 */
1813 "970 maintenance exception is not implemented yet !\n");
1816 cpu_abort(env, "Invalid exception 0x1600 !\n");
1821 switch (PPC_EXCP(env)) {
1822 case PPC_FLAGS_EXCP_7x0:
1823 case PPC_FLAGS_EXCP_7x5:
1824 /* Thermal management interrupt on G3 */
1826 cpu_abort(env, "G3 thermal management exception "
1827 "is not implemented yet !\n");
1829 case PPC_FLAGS_EXCP_970:
1830 /* VPU assist on 970 */
1833 "970 VPU assist exception is not implemented yet !\n");
1836 cpu_abort(env, "Invalid exception 0x1700 !\n");
1841 switch (PPC_EXCP(env)) {
1842 case PPC_FLAGS_EXCP_970:
1843 /* Thermal exception on 970 */
1845 cpu_abort(env, "970 thermal management exception "
1846 "is not implemented yet !\n");
1849 cpu_abort(env, "Invalid exception 0x1800 !\n");
1854 switch (PPC_EXCP(env)) {
1855 case PPC_FLAGS_EXCP_40x:
1858 cpu_abort(env, "40x debug exception is not implemented yet !\n");
1860 case PPC_FLAGS_EXCP_601:
1861 /* Run mode exception on 601 */
1864 "601 run mode exception is not implemented yet !\n");
1866 case PPC_FLAGS_EXCP_BOOKE:
1867 srr_0 = &env->spr[SPR_BOOKE_CSRR0];
1868 srr_1 = &env->spr[SPR_BOOKE_CSRR1];
1871 cpu_abort(env, "Invalid exception 0x1800 !\n");
1875 /* Other exceptions */
1876 /* Qemu internal exceptions:
1877 * we should never come here with those values: abort execution
1880 cpu_abort(env, "Invalid exception: code %d (%04x)\n", excp, excp);
1883 /* save current instruction location */
1884 *srr_0 = env->nip - 4;
1887 /* save next instruction location */
1897 /* If we disactivated any translation, flush TLBs */
1898 if (msr_ir || msr_dr) {
1901 /* reload MSR with correct bits */
1913 if (PPC_EXCP(env) == PPC_FLAGS_EXCP_BOOKE) {
1915 if (idx == -1 || (idx >= 16 && idx < 32)) {
1916 cpu_abort(env, "Invalid exception index for excp %d %08x idx %d\n",
1919 #if defined(TARGET_PPC64)
1921 env->nip = (uint64_t)env->spr[SPR_BOOKE_IVPR];
1924 env->nip = (uint32_t)env->spr[SPR_BOOKE_IVPR];
1926 env->nip |= env->spr[SPR_BOOKE_IVOR0 + idx];
1928 env->nip |= env->spr[SPR_BOOKE_IVOR32 + idx - 32];
1933 do_compute_hflags(env);
1934 /* Jump to handler */
1935 env->exception_index = EXCP_NONE;
1938 void ppc_hw_interrupt (CPUPPCState *env)
1943 if (loglevel & CPU_LOG_INT) {
1944 fprintf(logfile, "%s: %p pending %08x req %08x me %d ee %d\n",
1945 __func__, env, env->pending_interrupts,
1946 env->interrupt_request, msr_me, msr_ee);
1950 if (env->pending_interrupts & (1 << PPC_INTERRUPT_RESET)) {
1951 /* External reset / critical input */
1952 /* XXX: critical input should be handled another way.
1953 * This code is not correct !
1955 env->exception_index = EXCP_RESET;
1956 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_RESET);
1959 if (raised == 0 && msr_me != 0) {
1960 /* Machine check exception */
1961 if (env->pending_interrupts & (1 << PPC_INTERRUPT_MCK)) {
1962 env->exception_index = EXCP_MACHINE_CHECK;
1963 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_MCK);
1967 if (raised == 0 && msr_ee != 0) {
1968 #if defined(TARGET_PPC64H) /* PowerPC 64 with hypervisor mode support */
1969 /* Hypervisor decrementer exception */
1970 if (env->pending_interrupts & (1 << PPC_INTERRUPT_HDECR)) {
1971 env->exception_index = EXCP_HDECR;
1972 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_HDECR);
1976 /* Decrementer exception */
1977 if (env->pending_interrupts & (1 << PPC_INTERRUPT_DECR)) {
1978 env->exception_index = EXCP_DECR;
1979 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DECR);
1981 /* Programmable interval timer on embedded PowerPC */
1982 } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_PIT)) {
1983 env->exception_index = EXCP_40x_PIT;
1984 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PIT);
1986 /* Fixed interval timer on embedded PowerPC */
1987 } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_FIT)) {
1988 env->exception_index = EXCP_40x_FIT;
1989 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_FIT);
1991 /* Watchdog timer on embedded PowerPC */
1992 } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_WDT)) {
1993 env->exception_index = EXCP_40x_WATCHDOG;
1994 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_WDT);
1996 /* External interrupt */
1997 } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
1998 env->exception_index = EXCP_EXTERNAL;
1999 /* Taking an external interrupt does not clear the external
2003 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
2008 /* External debug exception */
2009 } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_DEBUG)) {
2010 env->exception_index = EXCP_xxx;
2011 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DEBUG);
2016 env->error_code = 0;
2020 #endif /* !CONFIG_USER_ONLY */
2022 void cpu_dump_EA (target_ulong EA)
2032 fprintf(f, "Memory access at address " TARGET_FMT_lx "\n", EA);