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;
47 exception = POWERPC_EXCP_ISI;
48 error_code = 0x40000000;
50 exception = POWERPC_EXCP_DSI;
51 error_code = 0x40000000;
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)
69 /* Common routines used by software and hardware TLBs emulation */
70 static inline int pte_is_valid (target_ulong pte0)
72 return pte0 & 0x80000000 ? 1 : 0;
75 static inline void pte_invalidate (target_ulong *pte0)
80 #if defined(TARGET_PPC64)
81 static inline int pte64_is_valid (target_ulong pte0)
83 return pte0 & 0x0000000000000001ULL ? 1 : 0;
86 static inline void pte64_invalidate (target_ulong *pte0)
88 *pte0 &= ~0x0000000000000001ULL;
92 #define PTE_PTEM_MASK 0x7FFFFFBF
93 #define PTE_CHECK_MASK (TARGET_PAGE_MASK | 0x7B)
94 #if defined(TARGET_PPC64)
95 #define PTE64_PTEM_MASK 0xFFFFFFFFFFFFFF80ULL
96 #define PTE64_CHECK_MASK (TARGET_PAGE_MASK | 0x7F)
99 static inline int _pte_check (mmu_ctx_t *ctx, int is_64b,
100 target_ulong pte0, target_ulong pte1,
103 target_ulong ptem, mmask;
104 int access, ret, pteh, ptev;
108 /* Check validity and table match */
109 #if defined(TARGET_PPC64)
111 ptev = pte64_is_valid(pte0);
112 pteh = (pte0 >> 1) & 1;
116 ptev = pte_is_valid(pte0);
117 pteh = (pte0 >> 6) & 1;
119 if (ptev && h == pteh) {
120 /* Check vsid & api */
121 #if defined(TARGET_PPC64)
123 ptem = pte0 & PTE64_PTEM_MASK;
124 mmask = PTE64_CHECK_MASK;
128 ptem = pte0 & PTE_PTEM_MASK;
129 mmask = PTE_CHECK_MASK;
131 if (ptem == ctx->ptem) {
132 if (ctx->raddr != (target_ulong)-1) {
133 /* all matches should have equal RPN, WIMG & PP */
134 if ((ctx->raddr & mmask) != (pte1 & mmask)) {
136 fprintf(logfile, "Bad RPN/WIMG/PP\n");
140 /* Compute access rights */
143 if ((pte1 & 0x00000003) != 0x3)
144 access |= PAGE_WRITE;
146 switch (pte1 & 0x00000003) {
155 access = PAGE_READ | PAGE_WRITE;
159 /* Keep the matching PTE informations */
162 if ((rw == 0 && (access & PAGE_READ)) ||
163 (rw == 1 && (access & PAGE_WRITE))) {
165 #if defined (DEBUG_MMU)
167 fprintf(logfile, "PTE access granted !\n");
171 /* Access right violation */
172 #if defined (DEBUG_MMU)
174 fprintf(logfile, "PTE access rejected\n");
184 static int pte32_check (mmu_ctx_t *ctx,
185 target_ulong pte0, target_ulong pte1, int h, int rw)
187 return _pte_check(ctx, 0, pte0, pte1, h, rw);
190 #if defined(TARGET_PPC64)
191 static int pte64_check (mmu_ctx_t *ctx,
192 target_ulong pte0, target_ulong pte1, int h, int rw)
194 return _pte_check(ctx, 1, pte0, pte1, h, rw);
198 static int pte_update_flags (mmu_ctx_t *ctx, target_ulong *pte1p,
203 /* Update page flags */
204 if (!(*pte1p & 0x00000100)) {
205 /* Update accessed flag */
206 *pte1p |= 0x00000100;
209 if (!(*pte1p & 0x00000080)) {
210 if (rw == 1 && ret == 0) {
211 /* Update changed flag */
212 *pte1p |= 0x00000080;
215 /* Force page fault for first write access */
216 ctx->prot &= ~PAGE_WRITE;
223 /* Software driven TLB helpers */
224 static int ppc6xx_tlb_getnum (CPUState *env, target_ulong eaddr,
225 int way, int is_code)
229 /* Select TLB num in a way from address */
230 nr = (eaddr >> TARGET_PAGE_BITS) & (env->tlb_per_way - 1);
232 nr += env->tlb_per_way * way;
233 /* 6xx have separate TLBs for instructions and data */
234 if (is_code && env->id_tlbs == 1)
240 static void ppc6xx_tlb_invalidate_all (CPUState *env)
245 #if defined (DEBUG_SOFTWARE_TLB) && 0
247 fprintf(logfile, "Invalidate all TLBs\n");
250 /* Invalidate all defined software TLB */
252 if (env->id_tlbs == 1)
254 for (nr = 0; nr < max; nr++) {
255 tlb = &env->tlb[nr].tlb6;
256 pte_invalidate(&tlb->pte0);
261 static inline void __ppc6xx_tlb_invalidate_virt (CPUState *env,
263 int is_code, int match_epn)
265 #if !defined(FLUSH_ALL_TLBS)
269 /* Invalidate ITLB + DTLB, all ways */
270 for (way = 0; way < env->nb_ways; way++) {
271 nr = ppc6xx_tlb_getnum(env, eaddr, way, is_code);
272 tlb = &env->tlb[nr].tlb6;
273 if (pte_is_valid(tlb->pte0) && (match_epn == 0 || eaddr == tlb->EPN)) {
274 #if defined (DEBUG_SOFTWARE_TLB)
276 fprintf(logfile, "TLB invalidate %d/%d " ADDRX "\n",
277 nr, env->nb_tlb, eaddr);
280 pte_invalidate(&tlb->pte0);
281 tlb_flush_page(env, tlb->EPN);
285 /* XXX: PowerPC specification say this is valid as well */
286 ppc6xx_tlb_invalidate_all(env);
290 static void ppc6xx_tlb_invalidate_virt (CPUState *env, target_ulong eaddr,
293 __ppc6xx_tlb_invalidate_virt(env, eaddr, is_code, 0);
296 void ppc6xx_tlb_store (CPUState *env, target_ulong EPN, int way, int is_code,
297 target_ulong pte0, target_ulong pte1)
302 nr = ppc6xx_tlb_getnum(env, EPN, way, is_code);
303 tlb = &env->tlb[nr].tlb6;
304 #if defined (DEBUG_SOFTWARE_TLB)
306 fprintf(logfile, "Set TLB %d/%d EPN " ADDRX " PTE0 " ADDRX
307 " PTE1 " ADDRX "\n", nr, env->nb_tlb, EPN, pte0, pte1);
310 /* Invalidate any pending reference in Qemu for this virtual address */
311 __ppc6xx_tlb_invalidate_virt(env, EPN, is_code, 1);
315 /* Store last way for LRU mechanism */
319 static int ppc6xx_tlb_check (CPUState *env, mmu_ctx_t *ctx,
320 target_ulong eaddr, int rw, int access_type)
327 ret = -1; /* No TLB found */
328 for (way = 0; way < env->nb_ways; way++) {
329 nr = ppc6xx_tlb_getnum(env, eaddr, way,
330 access_type == ACCESS_CODE ? 1 : 0);
331 tlb = &env->tlb[nr].tlb6;
332 /* This test "emulates" the PTE index match for hardware TLBs */
333 if ((eaddr & TARGET_PAGE_MASK) != tlb->EPN) {
334 #if defined (DEBUG_SOFTWARE_TLB)
336 fprintf(logfile, "TLB %d/%d %s [" ADDRX " " ADDRX
339 pte_is_valid(tlb->pte0) ? "valid" : "inval",
340 tlb->EPN, tlb->EPN + TARGET_PAGE_SIZE, eaddr);
345 #if defined (DEBUG_SOFTWARE_TLB)
347 fprintf(logfile, "TLB %d/%d %s " ADDRX " <> " ADDRX " " ADDRX
350 pte_is_valid(tlb->pte0) ? "valid" : "inval",
351 tlb->EPN, eaddr, tlb->pte1,
352 rw ? 'S' : 'L', access_type == ACCESS_CODE ? 'I' : 'D');
355 switch (pte32_check(ctx, tlb->pte0, tlb->pte1, 0, rw)) {
357 /* TLB inconsistency */
360 /* Access violation */
370 /* XXX: we should go on looping to check all TLBs consistency
371 * but we can speed-up the whole thing as the
372 * result would be undefined if TLBs are not consistent.
381 #if defined (DEBUG_SOFTWARE_TLB)
383 fprintf(logfile, "found TLB at addr 0x%08lx prot=0x%01x ret=%d\n",
384 ctx->raddr & TARGET_PAGE_MASK, ctx->prot, ret);
387 /* Update page flags */
388 pte_update_flags(ctx, &env->tlb[best].tlb6.pte1, ret, rw);
394 /* Perform BAT hit & translation */
395 static int get_bat (CPUState *env, mmu_ctx_t *ctx,
396 target_ulong virtual, int rw, int type)
398 target_ulong *BATlt, *BATut, *BATu, *BATl;
399 target_ulong base, BEPIl, BEPIu, bl;
403 #if defined (DEBUG_BATS)
405 fprintf(logfile, "%s: %cBAT v 0x" ADDRX "\n", __func__,
406 type == ACCESS_CODE ? 'I' : 'D', virtual);
411 BATlt = env->IBAT[1];
412 BATut = env->IBAT[0];
415 BATlt = env->DBAT[1];
416 BATut = env->DBAT[0];
419 #if defined (DEBUG_BATS)
421 fprintf(logfile, "%s...: %cBAT v 0x" ADDRX "\n", __func__,
422 type == ACCESS_CODE ? 'I' : 'D', virtual);
425 base = virtual & 0xFFFC0000;
426 for (i = 0; i < 4; i++) {
429 BEPIu = *BATu & 0xF0000000;
430 BEPIl = *BATu & 0x0FFE0000;
431 bl = (*BATu & 0x00001FFC) << 15;
432 #if defined (DEBUG_BATS)
434 fprintf(logfile, "%s: %cBAT%d v 0x" ADDRX " BATu 0x" ADDRX
435 " BATl 0x" ADDRX "\n",
436 __func__, type == ACCESS_CODE ? 'I' : 'D', i, virtual,
440 if ((virtual & 0xF0000000) == BEPIu &&
441 ((virtual & 0x0FFE0000) & ~bl) == BEPIl) {
443 if ((msr_pr == 0 && (*BATu & 0x00000002)) ||
444 (msr_pr == 1 && (*BATu & 0x00000001))) {
445 /* Get physical address */
446 ctx->raddr = (*BATl & 0xF0000000) |
447 ((virtual & 0x0FFE0000 & bl) | (*BATl & 0x0FFE0000)) |
448 (virtual & 0x0001F000);
449 if (*BATl & 0x00000001)
450 ctx->prot = PAGE_READ;
451 if (*BATl & 0x00000002)
452 ctx->prot = PAGE_WRITE | PAGE_READ;
453 #if defined (DEBUG_BATS)
455 fprintf(logfile, "BAT %d match: r 0x" PADDRX
457 i, ctx->raddr, ctx->prot & PAGE_READ ? 'R' : '-',
458 ctx->prot & PAGE_WRITE ? 'W' : '-');
467 #if defined (DEBUG_BATS)
469 fprintf(logfile, "no BAT match for 0x" ADDRX ":\n", virtual);
470 for (i = 0; i < 4; i++) {
473 BEPIu = *BATu & 0xF0000000;
474 BEPIl = *BATu & 0x0FFE0000;
475 bl = (*BATu & 0x00001FFC) << 15;
476 fprintf(logfile, "%s: %cBAT%d v 0x" ADDRX " BATu 0x" ADDRX
477 " BATl 0x" ADDRX " \n\t"
478 "0x" ADDRX " 0x" ADDRX " 0x" ADDRX "\n",
479 __func__, type == ACCESS_CODE ? 'I' : 'D', i, virtual,
480 *BATu, *BATl, BEPIu, BEPIl, bl);
489 /* PTE table lookup */
490 static inline int _find_pte (mmu_ctx_t *ctx, int is_64b, int h, int rw)
492 target_ulong base, pte0, pte1;
496 ret = -1; /* No entry found */
497 base = ctx->pg_addr[h];
498 for (i = 0; i < 8; i++) {
499 #if defined(TARGET_PPC64)
501 pte0 = ldq_phys(base + (i * 16));
502 pte1 = ldq_phys(base + (i * 16) + 8);
503 r = pte64_check(ctx, pte0, pte1, h, rw);
507 pte0 = ldl_phys(base + (i * 8));
508 pte1 = ldl_phys(base + (i * 8) + 4);
509 r = pte32_check(ctx, pte0, pte1, h, rw);
511 #if defined (DEBUG_MMU)
513 fprintf(logfile, "Load pte from 0x" ADDRX " => 0x" ADDRX
514 " 0x" ADDRX " %d %d %d 0x" ADDRX "\n",
515 base + (i * 8), pte0, pte1,
516 (int)(pte0 >> 31), h, (int)((pte0 >> 6) & 1), ctx->ptem);
521 /* PTE inconsistency */
524 /* Access violation */
534 /* XXX: we should go on looping to check all PTEs consistency
535 * but if we can speed-up the whole thing as the
536 * result would be undefined if PTEs are not consistent.
545 #if defined (DEBUG_MMU)
547 fprintf(logfile, "found PTE at addr 0x" PADDRX " prot=0x%01x "
549 ctx->raddr, ctx->prot, ret);
552 /* Update page flags */
554 if (pte_update_flags(ctx, &pte1, ret, rw) == 1) {
555 #if defined(TARGET_PPC64)
557 stq_phys_notdirty(base + (good * 16) + 8, pte1);
561 stl_phys_notdirty(base + (good * 8) + 4, pte1);
569 static int find_pte32 (mmu_ctx_t *ctx, int h, int rw)
571 return _find_pte(ctx, 0, h, rw);
574 #if defined(TARGET_PPC64)
575 static int find_pte64 (mmu_ctx_t *ctx, int h, int rw)
577 return _find_pte(ctx, 1, h, rw);
581 static inline int find_pte (CPUState *env, mmu_ctx_t *ctx, int h, int rw)
583 #if defined(TARGET_PPC64)
584 if (env->mmu_model == POWERPC_MMU_64B ||
585 env->mmu_model == POWERPC_MMU_64BRIDGE)
586 return find_pte64(ctx, h, rw);
589 return find_pte32(ctx, h, rw);
592 static inline target_phys_addr_t get_pgaddr (target_phys_addr_t sdr1,
594 target_phys_addr_t hash,
595 target_phys_addr_t mask)
597 return (sdr1 & ((target_ulong)(-1ULL) << sdr_sh)) | (hash & mask);
600 #if defined(TARGET_PPC64)
601 static int slb_lookup (CPUState *env, target_ulong eaddr,
602 target_ulong *vsid, target_ulong *page_mask, int *attr)
604 target_phys_addr_t sr_base;
612 sr_base = env->spr[SPR_ASR];
613 mask = 0x0000000000000000ULL; /* Avoid gcc warning */
614 #if 0 /* XXX: Fix this */
615 slb_nr = env->slb_nr;
619 for (n = 0; n < slb_nr; n++) {
620 tmp64 = ldq_phys(sr_base);
621 if (tmp64 & 0x0000000008000000ULL) {
622 /* SLB entry is valid */
623 switch (tmp64 & 0x0000000006000000ULL) {
624 case 0x0000000000000000ULL:
626 mask = 0xFFFFFFFFF0000000ULL;
628 case 0x0000000002000000ULL:
630 mask = 0xFFFF000000000000ULL;
632 case 0x0000000004000000ULL:
633 case 0x0000000006000000ULL:
634 /* Reserved => segment is invalid */
637 if ((eaddr & mask) == (tmp64 & mask)) {
639 tmp = ldl_phys(sr_base + 8);
640 *vsid = ((tmp64 << 24) | (tmp >> 8)) & 0x0003FFFFFFFFFFFFULL;
652 #endif /* defined(TARGET_PPC64) */
654 /* Perform segment based translation */
655 static int get_segment (CPUState *env, mmu_ctx_t *ctx,
656 target_ulong eaddr, int rw, int type)
658 target_phys_addr_t sdr, hash, mask, sdr_mask;
659 target_ulong sr, vsid, vsid_mask, pgidx, page_mask;
660 #if defined(TARGET_PPC64)
663 int ds, nx, vsid_sh, sdr_sh;
666 #if defined(TARGET_PPC64)
667 if (env->mmu_model == POWERPC_MMU_64B ||
668 env->mmu_model == POWERPC_MMU_64BRIDGE) {
669 ret = slb_lookup(env, eaddr, &vsid, &page_mask, &attr);
672 ctx->key = ((attr & 0x40) && msr_pr == 1) ||
673 ((attr & 0x80) && msr_pr == 0) ? 1 : 0;
675 nx = attr & 0x20 ? 1 : 0;
676 vsid_mask = 0x00003FFFFFFFFF80ULL;
681 #endif /* defined(TARGET_PPC64) */
683 sr = env->sr[eaddr >> 28];
684 page_mask = 0x0FFFFFFF;
685 ctx->key = (((sr & 0x20000000) && msr_pr == 1) ||
686 ((sr & 0x40000000) && msr_pr == 0)) ? 1 : 0;
687 ds = sr & 0x80000000 ? 1 : 0;
688 nx = sr & 0x10000000 ? 1 : 0;
689 vsid = sr & 0x00FFFFFF;
690 vsid_mask = 0x01FFFFC0;
694 #if defined (DEBUG_MMU)
696 fprintf(logfile, "Check segment v=0x" ADDRX " %d 0x" ADDRX
697 " nip=0x" ADDRX " lr=0x" ADDRX
698 " ir=%d dr=%d pr=%d %d t=%d\n",
699 eaddr, (int)(eaddr >> 28), sr, env->nip,
700 env->lr, msr_ir, msr_dr, msr_pr, rw, type);
702 if (!ds && loglevel != 0) {
703 fprintf(logfile, "pte segment: key=%d n=0x" ADDRX "\n",
704 ctx->key, sr & 0x10000000);
710 /* Check if instruction fetch is allowed, if needed */
711 if (type != ACCESS_CODE || nx == 0) {
712 /* Page address translation */
713 pgidx = (eaddr & page_mask) >> TARGET_PAGE_BITS;
714 hash = ((vsid ^ pgidx) << vsid_sh) & vsid_mask;
715 /* Primary table address */
717 mask = ((sdr & 0x000001FF) << sdr_sh) | sdr_mask;
718 ctx->pg_addr[0] = get_pgaddr(sdr, sdr_sh, hash, mask);
719 /* Secondary table address */
720 hash = (~hash) & vsid_mask;
721 ctx->pg_addr[1] = get_pgaddr(sdr, sdr_sh, hash, mask);
722 #if defined(TARGET_PPC64)
723 if (env->mmu_model == POWERPC_MMU_64B ||
724 env->mmu_model == POWERPC_MMU_64BRIDGE) {
725 /* Only 5 bits of the page index are used in the AVPN */
726 ctx->ptem = (vsid << 12) | ((pgidx >> 4) & 0x0F80);
730 ctx->ptem = (vsid << 7) | (pgidx >> 10);
732 /* Initialize real address with an invalid value */
733 ctx->raddr = (target_ulong)-1;
734 if (unlikely(env->mmu_model == POWERPC_MMU_SOFT_6xx ||
735 env->mmu_model == POWERPC_MMU_SOFT_74xx)) {
736 /* Software TLB search */
737 ret = ppc6xx_tlb_check(env, ctx, eaddr, rw, type);
739 #if defined (DEBUG_MMU)
741 fprintf(logfile, "0 sdr1=0x" PADDRX " vsid=0x%06x "
742 "api=0x%04x hash=0x%07x pg_addr=0x" PADDRX "\n",
743 sdr, (uint32_t)vsid, (uint32_t)pgidx,
744 (uint32_t)hash, ctx->pg_addr[0]);
747 /* Primary table lookup */
748 ret = find_pte(env, ctx, 0, rw);
750 /* Secondary table lookup */
751 #if defined (DEBUG_MMU)
752 if (eaddr != 0xEFFFFFFF && loglevel != 0) {
754 "1 sdr1=0x" PADDRX " vsid=0x%06x api=0x%04x "
755 "hash=0x%05x pg_addr=0x" PADDRX "\n",
756 sdr, (uint32_t)vsid, (uint32_t)pgidx,
757 (uint32_t)hash, ctx->pg_addr[1]);
760 ret2 = find_pte(env, ctx, 1, rw);
766 #if defined (DEBUG_MMU)
768 fprintf(logfile, "No access allowed\n");
773 #if defined (DEBUG_MMU)
775 fprintf(logfile, "direct store...\n");
777 /* Direct-store segment : absolutely *BUGGY* for now */
780 /* Integer load/store : only access allowed */
783 /* No code fetch is allowed in direct-store areas */
786 /* Floating point load/store */
789 /* lwarx, ldarx or srwcx. */
792 /* dcba, dcbt, dcbtst, dcbf, dcbi, dcbst, dcbz, or icbi */
793 /* Should make the instruction do no-op.
794 * As it already do no-op, it's quite easy :-)
803 fprintf(logfile, "ERROR: instruction should not need "
804 "address translation\n");
808 if ((rw == 1 || ctx->key != 1) && (rw == 0 || ctx->key != 0)) {
819 /* Generic TLB check function for embedded PowerPC implementations */
820 static int ppcemb_tlb_check (CPUState *env, ppcemb_tlb_t *tlb,
821 target_phys_addr_t *raddrp,
822 target_ulong address,
823 uint32_t pid, int ext, int i)
827 /* Check valid flag */
828 if (!(tlb->prot & PAGE_VALID)) {
830 fprintf(logfile, "%s: TLB %d not valid\n", __func__, i);
833 mask = ~(tlb->size - 1);
834 #if defined (DEBUG_SOFTWARE_TLB)
836 fprintf(logfile, "%s: TLB %d address " ADDRX " PID %d <=> "
837 ADDRX " " ADDRX " %d\n",
838 __func__, i, address, pid, tlb->EPN, mask, (int)tlb->PID);
842 if (tlb->PID != 0 && tlb->PID != pid)
844 /* Check effective address */
845 if ((address & mask) != tlb->EPN)
847 *raddrp = (tlb->RPN & mask) | (address & ~mask);
848 #if (TARGET_PHYS_ADDR_BITS >= 36)
850 /* Extend the physical address to 36 bits */
851 *raddrp |= (target_phys_addr_t)(tlb->RPN & 0xF) << 32;
858 /* Generic TLB search function for PowerPC embedded implementations */
859 int ppcemb_tlb_search (CPUPPCState *env, target_ulong address, uint32_t pid)
862 target_phys_addr_t raddr;
865 /* Default return value is no match */
867 for (i = 0; i < env->nb_tlb; i++) {
868 tlb = &env->tlb[i].tlbe;
869 if (ppcemb_tlb_check(env, tlb, &raddr, address, pid, 0, i) == 0) {
878 /* Helpers specific to PowerPC 40x implementations */
879 static void ppc4xx_tlb_invalidate_all (CPUState *env)
884 for (i = 0; i < env->nb_tlb; i++) {
885 tlb = &env->tlb[i].tlbe;
886 tlb->prot &= ~PAGE_VALID;
891 static void ppc4xx_tlb_invalidate_virt (CPUState *env, target_ulong eaddr,
894 #if !defined(FLUSH_ALL_TLBS)
896 target_phys_addr_t raddr;
897 target_ulong page, end;
900 for (i = 0; i < env->nb_tlb; i++) {
901 tlb = &env->tlb[i].tlbe;
902 if (ppcemb_tlb_check(env, tlb, &raddr, eaddr, pid, 0, i) == 0) {
903 end = tlb->EPN + tlb->size;
904 for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
905 tlb_flush_page(env, page);
906 tlb->prot &= ~PAGE_VALID;
911 ppc4xx_tlb_invalidate_all(env);
915 int mmu40x_get_physical_address (CPUState *env, mmu_ctx_t *ctx,
916 target_ulong address, int rw, int access_type)
919 target_phys_addr_t raddr;
920 int i, ret, zsel, zpr;
924 for (i = 0; i < env->nb_tlb; i++) {
925 tlb = &env->tlb[i].tlbe;
926 if (ppcemb_tlb_check(env, tlb, &raddr, address,
927 env->spr[SPR_40x_PID], 0, i) < 0)
929 zsel = (tlb->attr >> 4) & 0xF;
930 zpr = (env->spr[SPR_40x_ZPR] >> (28 - (2 * zsel))) & 0x3;
931 #if defined (DEBUG_SOFTWARE_TLB)
933 fprintf(logfile, "%s: TLB %d zsel %d zpr %d rw %d attr %08x\n",
934 __func__, i, zsel, zpr, rw, tlb->attr);
937 if (access_type == ACCESS_CODE) {
938 /* Check execute enable bit */
942 goto check_exec_perm;
953 /* Check from TLB entry */
954 if (!(tlb->prot & PAGE_EXEC)) {
957 if (tlb->prot & PAGE_WRITE) {
958 ctx->prot = PAGE_READ | PAGE_WRITE;
960 ctx->prot = PAGE_READ;
967 /* All accesses granted */
968 ctx->prot = PAGE_READ | PAGE_WRITE;
987 /* Check from TLB entry */
988 /* Check write protection bit */
989 if (tlb->prot & PAGE_WRITE) {
990 ctx->prot = PAGE_READ | PAGE_WRITE;
993 ctx->prot = PAGE_READ;
1002 /* All accesses granted */
1003 ctx->prot = PAGE_READ | PAGE_WRITE;
1010 #if defined (DEBUG_SOFTWARE_TLB)
1011 if (loglevel != 0) {
1012 fprintf(logfile, "%s: access granted " ADDRX " => " REGX
1013 " %d %d\n", __func__, address, ctx->raddr, ctx->prot,
1020 #if defined (DEBUG_SOFTWARE_TLB)
1021 if (loglevel != 0) {
1022 fprintf(logfile, "%s: access refused " ADDRX " => " REGX
1023 " %d %d\n", __func__, address, raddr, ctx->prot,
1031 void store_40x_sler (CPUPPCState *env, uint32_t val)
1033 /* XXX: TO BE FIXED */
1034 if (val != 0x00000000) {
1035 cpu_abort(env, "Little-endian regions are not supported by now\n");
1037 env->spr[SPR_405_SLER] = val;
1040 int mmubooke_get_physical_address (CPUState *env, mmu_ctx_t *ctx,
1041 target_ulong address, int rw,
1045 target_phys_addr_t raddr;
1050 for (i = 0; i < env->nb_tlb; i++) {
1051 tlb = &env->tlb[i].tlbe;
1052 if (ppcemb_tlb_check(env, tlb, &raddr, address,
1053 env->spr[SPR_BOOKE_PID], 1, i) < 0)
1056 prot = tlb->prot & 0xF;
1058 prot = (tlb->prot >> 4) & 0xF;
1059 /* Check the address space */
1060 if (access_type == ACCESS_CODE) {
1061 if (msr_is != (tlb->attr & 1))
1064 if (prot & PAGE_EXEC) {
1070 if (msr_ds != (tlb->attr & 1))
1073 if ((!rw && prot & PAGE_READ) || (rw && (prot & PAGE_WRITE))) {
1086 static int check_physical (CPUState *env, mmu_ctx_t *ctx,
1087 target_ulong eaddr, int rw)
1092 ctx->prot = PAGE_READ;
1094 switch (env->mmu_model) {
1095 case POWERPC_MMU_32B:
1096 case POWERPC_MMU_SOFT_6xx:
1097 case POWERPC_MMU_SOFT_74xx:
1098 case POWERPC_MMU_601:
1099 case POWERPC_MMU_SOFT_4xx:
1100 case POWERPC_MMU_REAL_4xx:
1101 case POWERPC_MMU_BOOKE:
1102 ctx->prot |= PAGE_WRITE;
1104 #if defined(TARGET_PPC64)
1105 case POWERPC_MMU_64B:
1106 case POWERPC_MMU_64BRIDGE:
1107 /* Real address are 60 bits long */
1108 ctx->raddr &= 0x0FFFFFFFFFFFFFFFULL;
1109 ctx->prot |= PAGE_WRITE;
1112 case POWERPC_MMU_SOFT_4xx_Z:
1113 if (unlikely(msr_pe != 0)) {
1114 /* 403 family add some particular protections,
1115 * using PBL/PBU registers for accesses with no translation.
1118 /* Check PLB validity */
1119 (env->pb[0] < env->pb[1] &&
1120 /* and address in plb area */
1121 eaddr >= env->pb[0] && eaddr < env->pb[1]) ||
1122 (env->pb[2] < env->pb[3] &&
1123 eaddr >= env->pb[2] && eaddr < env->pb[3]) ? 1 : 0;
1124 if (in_plb ^ msr_px) {
1125 /* Access in protected area */
1127 /* Access is not allowed */
1131 /* Read-write access is allowed */
1132 ctx->prot |= PAGE_WRITE;
1136 case POWERPC_MMU_BOOKE_FSL:
1138 cpu_abort(env, "BookE FSL MMU model not implemented\n");
1141 cpu_abort(env, "Unknown or invalid MMU model\n");
1148 int get_physical_address (CPUState *env, mmu_ctx_t *ctx, target_ulong eaddr,
1149 int rw, int access_type, int check_BATs)
1153 if (loglevel != 0) {
1154 fprintf(logfile, "%s\n", __func__);
1157 if ((access_type == ACCESS_CODE && msr_ir == 0) ||
1158 (access_type != ACCESS_CODE && msr_dr == 0)) {
1159 /* No address translation */
1160 ret = check_physical(env, ctx, eaddr, rw);
1163 switch (env->mmu_model) {
1164 case POWERPC_MMU_32B:
1165 case POWERPC_MMU_SOFT_6xx:
1166 case POWERPC_MMU_SOFT_74xx:
1167 /* Try to find a BAT */
1169 ret = get_bat(env, ctx, eaddr, rw, access_type);
1171 #if defined(TARGET_PPC64)
1172 case POWERPC_MMU_64B:
1173 case POWERPC_MMU_64BRIDGE:
1176 /* We didn't match any BAT entry or don't have BATs */
1177 ret = get_segment(env, ctx, eaddr, rw, access_type);
1180 case POWERPC_MMU_SOFT_4xx:
1181 case POWERPC_MMU_SOFT_4xx_Z:
1182 ret = mmu40x_get_physical_address(env, ctx, eaddr,
1185 case POWERPC_MMU_601:
1187 cpu_abort(env, "601 MMU model not implemented\n");
1189 case POWERPC_MMU_BOOKE:
1190 ret = mmubooke_get_physical_address(env, ctx, eaddr,
1193 case POWERPC_MMU_BOOKE_FSL:
1195 cpu_abort(env, "BookE FSL MMU model not implemented\n");
1197 case POWERPC_MMU_REAL_4xx:
1198 cpu_abort(env, "PowerPC 401 does not do any translation\n");
1201 cpu_abort(env, "Unknown or invalid MMU model\n");
1206 if (loglevel != 0) {
1207 fprintf(logfile, "%s address " ADDRX " => %d " PADDRX "\n",
1208 __func__, eaddr, ret, ctx->raddr);
1215 target_phys_addr_t cpu_get_phys_page_debug (CPUState *env, target_ulong addr)
1219 if (unlikely(get_physical_address(env, &ctx, addr, 0, ACCESS_INT, 1) != 0))
1222 return ctx.raddr & TARGET_PAGE_MASK;
1225 /* Perform address translation */
1226 int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
1227 int is_user, int is_softmmu)
1236 access_type = ACCESS_CODE;
1239 /* XXX: put correct access by using cpu_restore_state()
1241 access_type = ACCESS_INT;
1242 // access_type = env->access_type;
1244 ret = get_physical_address(env, &ctx, address, rw, access_type, 1);
1246 ret = tlb_set_page(env, address & TARGET_PAGE_MASK,
1247 ctx.raddr & TARGET_PAGE_MASK, ctx.prot,
1248 is_user, is_softmmu);
1249 } else if (ret < 0) {
1250 #if defined (DEBUG_MMU)
1252 cpu_dump_state(env, logfile, fprintf, 0);
1254 if (access_type == ACCESS_CODE) {
1257 /* No matches in page tables or TLB */
1258 switch (env->mmu_model) {
1259 case POWERPC_MMU_SOFT_6xx:
1260 env->exception_index = POWERPC_EXCP_IFTLB;
1261 env->error_code = 1 << 18;
1262 env->spr[SPR_IMISS] = address;
1263 env->spr[SPR_ICMP] = 0x80000000 | ctx.ptem;
1265 case POWERPC_MMU_SOFT_74xx:
1266 env->exception_index = POWERPC_EXCP_IFTLB;
1268 case POWERPC_MMU_SOFT_4xx:
1269 case POWERPC_MMU_SOFT_4xx_Z:
1270 env->exception_index = POWERPC_EXCP_ITLB;
1271 env->error_code = 0;
1272 env->spr[SPR_40x_DEAR] = address;
1273 env->spr[SPR_40x_ESR] = 0x00000000;
1275 case POWERPC_MMU_32B:
1276 #if defined(TARGET_PPC64)
1277 case POWERPC_MMU_64B:
1278 case POWERPC_MMU_64BRIDGE:
1280 env->exception_index = POWERPC_EXCP_ISI;
1281 env->error_code = 0x40000000;
1283 case POWERPC_MMU_601:
1285 cpu_abort(env, "MMU model not implemented\n");
1287 case POWERPC_MMU_BOOKE:
1289 cpu_abort(env, "MMU model not implemented\n");
1291 case POWERPC_MMU_BOOKE_FSL:
1293 cpu_abort(env, "MMU model not implemented\n");
1295 case POWERPC_MMU_REAL_4xx:
1296 cpu_abort(env, "PowerPC 401 should never raise any MMU "
1300 cpu_abort(env, "Unknown or invalid MMU model\n");
1305 /* Access rights violation */
1306 env->exception_index = POWERPC_EXCP_ISI;
1307 env->error_code = 0x08000000;
1310 /* No execute protection violation */
1311 env->exception_index = POWERPC_EXCP_ISI;
1312 env->error_code = 0x10000000;
1315 /* Direct store exception */
1316 /* No code fetch is allowed in direct-store areas */
1317 env->exception_index = POWERPC_EXCP_ISI;
1318 env->error_code = 0x10000000;
1320 #if defined(TARGET_PPC64)
1322 /* No match in segment table */
1323 env->exception_index = POWERPC_EXCP_ISEG;
1324 env->error_code = 0;
1331 /* No matches in page tables or TLB */
1332 switch (env->mmu_model) {
1333 case POWERPC_MMU_SOFT_6xx:
1335 env->exception_index = POWERPC_EXCP_DSTLB;
1336 env->error_code = 1 << 16;
1338 env->exception_index = POWERPC_EXCP_DLTLB;
1339 env->error_code = 0;
1341 env->spr[SPR_DMISS] = address;
1342 env->spr[SPR_DCMP] = 0x80000000 | ctx.ptem;
1344 env->error_code |= ctx.key << 19;
1345 env->spr[SPR_HASH1] = ctx.pg_addr[0];
1346 env->spr[SPR_HASH2] = ctx.pg_addr[1];
1348 case POWERPC_MMU_SOFT_74xx:
1350 env->exception_index = POWERPC_EXCP_DSTLB;
1352 env->exception_index = POWERPC_EXCP_DLTLB;
1355 /* Implement LRU algorithm */
1356 env->error_code = ctx.key << 19;
1357 env->spr[SPR_TLBMISS] = (address & ~((target_ulong)0x3)) |
1358 ((env->last_way + 1) & (env->nb_ways - 1));
1359 env->spr[SPR_PTEHI] = 0x80000000 | ctx.ptem;
1361 case POWERPC_MMU_SOFT_4xx:
1362 case POWERPC_MMU_SOFT_4xx_Z:
1363 env->exception_index = POWERPC_EXCP_DTLB;
1364 env->error_code = 0;
1365 env->spr[SPR_40x_DEAR] = address;
1367 env->spr[SPR_40x_ESR] = 0x00800000;
1369 env->spr[SPR_40x_ESR] = 0x00000000;
1371 case POWERPC_MMU_32B:
1372 #if defined(TARGET_PPC64)
1373 case POWERPC_MMU_64B:
1374 case POWERPC_MMU_64BRIDGE:
1376 env->exception_index = POWERPC_EXCP_DSI;
1377 env->error_code = 0;
1378 env->spr[SPR_DAR] = address;
1380 env->spr[SPR_DSISR] = 0x42000000;
1382 env->spr[SPR_DSISR] = 0x40000000;
1384 case POWERPC_MMU_601:
1386 cpu_abort(env, "MMU model not implemented\n");
1388 case POWERPC_MMU_BOOKE:
1390 cpu_abort(env, "MMU model not implemented\n");
1392 case POWERPC_MMU_BOOKE_FSL:
1394 cpu_abort(env, "MMU model not implemented\n");
1396 case POWERPC_MMU_REAL_4xx:
1397 cpu_abort(env, "PowerPC 401 should never raise any MMU "
1401 cpu_abort(env, "Unknown or invalid MMU model\n");
1406 /* Access rights violation */
1407 env->exception_index = POWERPC_EXCP_DSI;
1408 env->error_code = 0;
1409 env->spr[SPR_DAR] = address;
1411 env->spr[SPR_DSISR] = 0x0A000000;
1413 env->spr[SPR_DSISR] = 0x08000000;
1416 /* Direct store exception */
1417 switch (access_type) {
1419 /* Floating point load/store */
1420 env->exception_index = POWERPC_EXCP_ALIGN;
1421 env->error_code = POWERPC_EXCP_ALIGN_FP;
1422 env->spr[SPR_DAR] = address;
1425 /* lwarx, ldarx or stwcx. */
1426 env->exception_index = POWERPC_EXCP_DSI;
1427 env->error_code = 0;
1428 env->spr[SPR_DAR] = address;
1430 env->spr[SPR_DSISR] = 0x06000000;
1432 env->spr[SPR_DSISR] = 0x04000000;
1435 /* eciwx or ecowx */
1436 env->exception_index = POWERPC_EXCP_DSI;
1437 env->error_code = 0;
1438 env->spr[SPR_DAR] = address;
1440 env->spr[SPR_DSISR] = 0x06100000;
1442 env->spr[SPR_DSISR] = 0x04100000;
1445 printf("DSI: invalid exception (%d)\n", ret);
1446 env->exception_index = POWERPC_EXCP_PROGRAM;
1448 POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL;
1449 env->spr[SPR_DAR] = address;
1453 #if defined(TARGET_PPC64)
1455 /* No match in segment table */
1456 env->exception_index = POWERPC_EXCP_DSEG;
1457 env->error_code = 0;
1458 env->spr[SPR_DAR] = address;
1464 printf("%s: set exception to %d %02x\n", __func__,
1465 env->exception, env->error_code);
1473 /*****************************************************************************/
1474 /* BATs management */
1475 #if !defined(FLUSH_ALL_TLBS)
1476 static inline void do_invalidate_BAT (CPUPPCState *env,
1477 target_ulong BATu, target_ulong mask)
1479 target_ulong base, end, page;
1481 base = BATu & ~0x0001FFFF;
1482 end = base + mask + 0x00020000;
1483 #if defined (DEBUG_BATS)
1484 if (loglevel != 0) {
1485 fprintf(logfile, "Flush BAT from " ADDRX " to " ADDRX " (" ADDRX ")\n",
1489 for (page = base; page != end; page += TARGET_PAGE_SIZE)
1490 tlb_flush_page(env, page);
1491 #if defined (DEBUG_BATS)
1493 fprintf(logfile, "Flush done\n");
1498 static inline void dump_store_bat (CPUPPCState *env, char ID, int ul, int nr,
1501 #if defined (DEBUG_BATS)
1502 if (loglevel != 0) {
1503 fprintf(logfile, "Set %cBAT%d%c to 0x" ADDRX " (0x" ADDRX ")\n",
1504 ID, nr, ul == 0 ? 'u' : 'l', value, env->nip);
1509 target_ulong do_load_ibatu (CPUPPCState *env, int nr)
1511 return env->IBAT[0][nr];
1514 target_ulong do_load_ibatl (CPUPPCState *env, int nr)
1516 return env->IBAT[1][nr];
1519 void do_store_ibatu (CPUPPCState *env, int nr, target_ulong value)
1523 dump_store_bat(env, 'I', 0, nr, value);
1524 if (env->IBAT[0][nr] != value) {
1525 mask = (value << 15) & 0x0FFE0000UL;
1526 #if !defined(FLUSH_ALL_TLBS)
1527 do_invalidate_BAT(env, env->IBAT[0][nr], mask);
1529 /* When storing valid upper BAT, mask BEPI and BRPN
1530 * and invalidate all TLBs covered by this BAT
1532 mask = (value << 15) & 0x0FFE0000UL;
1533 env->IBAT[0][nr] = (value & 0x00001FFFUL) |
1534 (value & ~0x0001FFFFUL & ~mask);
1535 env->IBAT[1][nr] = (env->IBAT[1][nr] & 0x0000007B) |
1536 (env->IBAT[1][nr] & ~0x0001FFFF & ~mask);
1537 #if !defined(FLUSH_ALL_TLBS)
1538 do_invalidate_BAT(env, env->IBAT[0][nr], mask);
1545 void do_store_ibatl (CPUPPCState *env, int nr, target_ulong value)
1547 dump_store_bat(env, 'I', 1, nr, value);
1548 env->IBAT[1][nr] = value;
1551 target_ulong do_load_dbatu (CPUPPCState *env, int nr)
1553 return env->DBAT[0][nr];
1556 target_ulong do_load_dbatl (CPUPPCState *env, int nr)
1558 return env->DBAT[1][nr];
1561 void do_store_dbatu (CPUPPCState *env, int nr, target_ulong value)
1565 dump_store_bat(env, 'D', 0, nr, value);
1566 if (env->DBAT[0][nr] != value) {
1567 /* When storing valid upper BAT, mask BEPI and BRPN
1568 * and invalidate all TLBs covered by this BAT
1570 mask = (value << 15) & 0x0FFE0000UL;
1571 #if !defined(FLUSH_ALL_TLBS)
1572 do_invalidate_BAT(env, env->DBAT[0][nr], mask);
1574 mask = (value << 15) & 0x0FFE0000UL;
1575 env->DBAT[0][nr] = (value & 0x00001FFFUL) |
1576 (value & ~0x0001FFFFUL & ~mask);
1577 env->DBAT[1][nr] = (env->DBAT[1][nr] & 0x0000007B) |
1578 (env->DBAT[1][nr] & ~0x0001FFFF & ~mask);
1579 #if !defined(FLUSH_ALL_TLBS)
1580 do_invalidate_BAT(env, env->DBAT[0][nr], mask);
1587 void do_store_dbatl (CPUPPCState *env, int nr, target_ulong value)
1589 dump_store_bat(env, 'D', 1, nr, value);
1590 env->DBAT[1][nr] = value;
1594 /*****************************************************************************/
1595 /* TLB management */
1596 void ppc_tlb_invalidate_all (CPUPPCState *env)
1598 switch (env->mmu_model) {
1599 case POWERPC_MMU_SOFT_6xx:
1600 case POWERPC_MMU_SOFT_74xx:
1601 ppc6xx_tlb_invalidate_all(env);
1603 case POWERPC_MMU_SOFT_4xx:
1604 case POWERPC_MMU_SOFT_4xx_Z:
1605 ppc4xx_tlb_invalidate_all(env);
1607 case POWERPC_MMU_REAL_4xx:
1608 cpu_abort(env, "No TLB for PowerPC 4xx in real mode\n");
1610 case POWERPC_MMU_BOOKE:
1612 cpu_abort(env, "MMU model not implemented\n");
1614 case POWERPC_MMU_BOOKE_FSL:
1616 cpu_abort(env, "MMU model not implemented\n");
1618 case POWERPC_MMU_601:
1620 cpu_abort(env, "MMU model not implemented\n");
1622 case POWERPC_MMU_32B:
1623 #if defined(TARGET_PPC64)
1624 case POWERPC_MMU_64B:
1625 case POWERPC_MMU_64BRIDGE:
1626 #endif /* defined(TARGET_PPC64) */
1631 cpu_abort(env, "Unknown MMU model %d\n", env->mmu_model);
1636 void ppc_tlb_invalidate_one (CPUPPCState *env, target_ulong addr)
1638 #if !defined(FLUSH_ALL_TLBS)
1639 addr &= TARGET_PAGE_MASK;
1640 switch (env->mmu_model) {
1641 case POWERPC_MMU_SOFT_6xx:
1642 case POWERPC_MMU_SOFT_74xx:
1643 ppc6xx_tlb_invalidate_virt(env, addr, 0);
1644 if (env->id_tlbs == 1)
1645 ppc6xx_tlb_invalidate_virt(env, addr, 1);
1647 case POWERPC_MMU_SOFT_4xx:
1648 case POWERPC_MMU_SOFT_4xx_Z:
1649 ppc4xx_tlb_invalidate_virt(env, addr, env->spr[SPR_40x_PID]);
1651 case POWERPC_MMU_REAL_4xx:
1652 cpu_abort(env, "No TLB for PowerPC 4xx in real mode\n");
1654 case POWERPC_MMU_BOOKE:
1656 cpu_abort(env, "MMU model not implemented\n");
1658 case POWERPC_MMU_BOOKE_FSL:
1660 cpu_abort(env, "MMU model not implemented\n");
1662 case POWERPC_MMU_601:
1664 cpu_abort(env, "MMU model not implemented\n");
1666 case POWERPC_MMU_32B:
1667 /* tlbie invalidate TLBs for all segments */
1668 addr &= ~((target_ulong)-1 << 28);
1669 /* XXX: this case should be optimized,
1670 * giving a mask to tlb_flush_page
1672 tlb_flush_page(env, addr | (0x0 << 28));
1673 tlb_flush_page(env, addr | (0x1 << 28));
1674 tlb_flush_page(env, addr | (0x2 << 28));
1675 tlb_flush_page(env, addr | (0x3 << 28));
1676 tlb_flush_page(env, addr | (0x4 << 28));
1677 tlb_flush_page(env, addr | (0x5 << 28));
1678 tlb_flush_page(env, addr | (0x6 << 28));
1679 tlb_flush_page(env, addr | (0x7 << 28));
1680 tlb_flush_page(env, addr | (0x8 << 28));
1681 tlb_flush_page(env, addr | (0x9 << 28));
1682 tlb_flush_page(env, addr | (0xA << 28));
1683 tlb_flush_page(env, addr | (0xB << 28));
1684 tlb_flush_page(env, addr | (0xC << 28));
1685 tlb_flush_page(env, addr | (0xD << 28));
1686 tlb_flush_page(env, addr | (0xE << 28));
1687 tlb_flush_page(env, addr | (0xF << 28));
1689 #if defined(TARGET_PPC64)
1690 case POWERPC_MMU_64B:
1691 case POWERPC_MMU_64BRIDGE:
1692 /* tlbie invalidate TLBs for all segments */
1693 /* XXX: given the fact that there are too many segments to invalidate,
1694 * and we still don't have a tlb_flush_mask(env, n, mask) in Qemu,
1695 * we just invalidate all TLBs
1699 #endif /* defined(TARGET_PPC64) */
1702 cpu_abort(env, "Unknown MMU model 2\n");
1706 ppc_tlb_invalidate_all(env);
1710 #if defined(TARGET_PPC64)
1711 void ppc_slb_invalidate_all (CPUPPCState *env)
1717 void ppc_slb_invalidate_one (CPUPPCState *env, uint64_t T0)
1725 /*****************************************************************************/
1726 /* Special registers manipulation */
1727 #if defined(TARGET_PPC64)
1728 target_ulong ppc_load_asr (CPUPPCState *env)
1733 void ppc_store_asr (CPUPPCState *env, target_ulong value)
1735 if (env->asr != value) {
1742 target_ulong do_load_sdr1 (CPUPPCState *env)
1747 void do_store_sdr1 (CPUPPCState *env, target_ulong value)
1749 #if defined (DEBUG_MMU)
1750 if (loglevel != 0) {
1751 fprintf(logfile, "%s: 0x" ADDRX "\n", __func__, value);
1754 if (env->sdr1 != value) {
1760 target_ulong do_load_sr (CPUPPCState *env, int srnum)
1762 return env->sr[srnum];
1765 void do_store_sr (CPUPPCState *env, int srnum, target_ulong value)
1767 #if defined (DEBUG_MMU)
1768 if (loglevel != 0) {
1769 fprintf(logfile, "%s: reg=%d 0x" ADDRX " " ADDRX "\n",
1770 __func__, srnum, value, env->sr[srnum]);
1773 if (env->sr[srnum] != value) {
1774 env->sr[srnum] = value;
1775 #if !defined(FLUSH_ALL_TLBS) && 0
1777 target_ulong page, end;
1778 /* Invalidate 256 MB of virtual memory */
1779 page = (16 << 20) * srnum;
1780 end = page + (16 << 20);
1781 for (; page != end; page += TARGET_PAGE_SIZE)
1782 tlb_flush_page(env, page);
1789 #endif /* !defined (CONFIG_USER_ONLY) */
1791 target_ulong ppc_load_xer (CPUPPCState *env)
1793 return (xer_so << XER_SO) |
1794 (xer_ov << XER_OV) |
1795 (xer_ca << XER_CA) |
1796 (xer_bc << XER_BC) |
1797 (xer_cmp << XER_CMP);
1800 void ppc_store_xer (CPUPPCState *env, target_ulong value)
1802 xer_so = (value >> XER_SO) & 0x01;
1803 xer_ov = (value >> XER_OV) & 0x01;
1804 xer_ca = (value >> XER_CA) & 0x01;
1805 xer_cmp = (value >> XER_CMP) & 0xFF;
1806 xer_bc = (value >> XER_BC) & 0x7F;
1809 /* Swap temporary saved registers with GPRs */
1810 static inline void swap_gpr_tgpr (CPUPPCState *env)
1815 env->gpr[0] = env->tgpr[0];
1818 env->gpr[1] = env->tgpr[1];
1821 env->gpr[2] = env->tgpr[2];
1824 env->gpr[3] = env->tgpr[3];
1828 /* GDBstub can read and write MSR... */
1829 target_ulong do_load_msr (CPUPPCState *env)
1832 #if defined (TARGET_PPC64)
1833 ((target_ulong)msr_sf << MSR_SF) |
1834 ((target_ulong)msr_isf << MSR_ISF) |
1835 ((target_ulong)msr_hv << MSR_HV) |
1837 ((target_ulong)msr_ucle << MSR_UCLE) |
1838 ((target_ulong)msr_vr << MSR_VR) | /* VR / SPE */
1839 ((target_ulong)msr_ap << MSR_AP) |
1840 ((target_ulong)msr_sa << MSR_SA) |
1841 ((target_ulong)msr_key << MSR_KEY) |
1842 ((target_ulong)msr_pow << MSR_POW) | /* POW / WE */
1843 ((target_ulong)msr_tlb << MSR_TLB) | /* TLB / TGPE / CE */
1844 ((target_ulong)msr_ile << MSR_ILE) |
1845 ((target_ulong)msr_ee << MSR_EE) |
1846 ((target_ulong)msr_pr << MSR_PR) |
1847 ((target_ulong)msr_fp << MSR_FP) |
1848 ((target_ulong)msr_me << MSR_ME) |
1849 ((target_ulong)msr_fe0 << MSR_FE0) |
1850 ((target_ulong)msr_se << MSR_SE) | /* SE / DWE / UBLE */
1851 ((target_ulong)msr_be << MSR_BE) | /* BE / DE */
1852 ((target_ulong)msr_fe1 << MSR_FE1) |
1853 ((target_ulong)msr_al << MSR_AL) |
1854 ((target_ulong)msr_ip << MSR_IP) |
1855 ((target_ulong)msr_ir << MSR_IR) | /* IR / IS */
1856 ((target_ulong)msr_dr << MSR_DR) | /* DR / DS */
1857 ((target_ulong)msr_pe << MSR_PE) | /* PE / EP */
1858 ((target_ulong)msr_px << MSR_PX) | /* PX / PMM */
1859 ((target_ulong)msr_ri << MSR_RI) |
1860 ((target_ulong)msr_le << MSR_LE);
1863 int do_store_msr (CPUPPCState *env, target_ulong value)
1867 value &= env->msr_mask;
1868 if (((value >> MSR_IR) & 1) != msr_ir ||
1869 ((value >> MSR_DR) & 1) != msr_dr) {
1870 /* Flush all tlb when changing translation mode */
1872 env->interrupt_request |= CPU_INTERRUPT_EXITTB;
1875 if (loglevel != 0) {
1876 fprintf(logfile, "%s: T0 %08lx\n", __func__, value);
1879 switch (env->excp_model) {
1880 case POWERPC_EXCP_602:
1881 case POWERPC_EXCP_603:
1882 case POWERPC_EXCP_603E:
1883 case POWERPC_EXCP_G2:
1884 if (((value >> MSR_TGPR) & 1) != msr_tgpr) {
1885 /* Swap temporary saved registers with GPRs */
1892 #if defined (TARGET_PPC64)
1893 msr_sf = (value >> MSR_SF) & 1;
1894 msr_isf = (value >> MSR_ISF) & 1;
1895 msr_hv = (value >> MSR_HV) & 1;
1897 msr_ucle = (value >> MSR_UCLE) & 1;
1898 msr_vr = (value >> MSR_VR) & 1; /* VR / SPE */
1899 msr_ap = (value >> MSR_AP) & 1;
1900 msr_sa = (value >> MSR_SA) & 1;
1901 msr_key = (value >> MSR_KEY) & 1;
1902 msr_pow = (value >> MSR_POW) & 1; /* POW / WE */
1903 msr_tlb = (value >> MSR_TLB) & 1; /* TLB / TGPR / CE */
1904 msr_ile = (value >> MSR_ILE) & 1;
1905 msr_ee = (value >> MSR_EE) & 1;
1906 msr_pr = (value >> MSR_PR) & 1;
1907 msr_fp = (value >> MSR_FP) & 1;
1908 msr_me = (value >> MSR_ME) & 1;
1909 msr_fe0 = (value >> MSR_FE0) & 1;
1910 msr_se = (value >> MSR_SE) & 1; /* SE / DWE / UBLE */
1911 msr_be = (value >> MSR_BE) & 1; /* BE / DE */
1912 msr_fe1 = (value >> MSR_FE1) & 1;
1913 msr_al = (value >> MSR_AL) & 1;
1914 msr_ip = (value >> MSR_IP) & 1;
1915 msr_ir = (value >> MSR_IR) & 1; /* IR / IS */
1916 msr_dr = (value >> MSR_DR) & 1; /* DR / DS */
1917 msr_pe = (value >> MSR_PE) & 1; /* PE / EP */
1918 msr_px = (value >> MSR_PX) & 1; /* PX / PMM */
1919 msr_ri = (value >> MSR_RI) & 1;
1920 msr_le = (value >> MSR_LE) & 1;
1921 do_compute_hflags(env);
1924 switch (env->excp_model) {
1925 case POWERPC_EXCP_603:
1926 case POWERPC_EXCP_603E:
1927 case POWERPC_EXCP_G2:
1928 /* Don't handle SLEEP mode: we should disable all clocks...
1929 * No dynamic power-management.
1931 if (msr_pow == 1 && (env->spr[SPR_HID0] & 0x00C00000) != 0)
1934 case POWERPC_EXCP_604:
1938 case POWERPC_EXCP_7x0:
1939 if (msr_pow == 1 && (env->spr[SPR_HID0] & 0x00E00000) != 0)
1949 #if defined(TARGET_PPC64)
1950 int ppc_store_msr_32 (CPUPPCState *env, uint32_t value)
1952 return do_store_msr(env, (do_load_msr(env) & ~0xFFFFFFFFULL) |
1953 (value & 0xFFFFFFFF));
1957 void do_compute_hflags (CPUPPCState *env)
1959 /* Compute current hflags */
1960 env->hflags = (msr_vr << MSR_VR) |
1961 (msr_ap << MSR_AP) | (msr_sa << MSR_SA) | (msr_pr << MSR_PR) |
1962 (msr_fp << MSR_FP) | (msr_fe0 << MSR_FE0) | (msr_se << MSR_SE) |
1963 (msr_be << MSR_BE) | (msr_fe1 << MSR_FE1) | (msr_le << MSR_LE);
1964 #if defined (TARGET_PPC64)
1965 env->hflags |= msr_cm << MSR_CM;
1966 env->hflags |= (uint64_t)msr_sf << MSR_SF;
1967 env->hflags |= (uint64_t)msr_hv << MSR_HV;
1971 /*****************************************************************************/
1972 /* Exception processing */
1973 #if defined (CONFIG_USER_ONLY)
1974 void do_interrupt (CPUState *env)
1976 env->exception_index = POWERPC_EXCP_NONE;
1977 env->error_code = 0;
1980 void ppc_hw_interrupt (CPUState *env)
1982 env->exception_index = POWERPC_EXCP_NONE;
1983 env->error_code = 0;
1985 #else /* defined (CONFIG_USER_ONLY) */
1986 static void dump_syscall (CPUState *env)
1988 fprintf(logfile, "syscall r0=0x" REGX " r3=0x" REGX " r4=0x" REGX
1989 " r5=0x" REGX " r6=0x" REGX " nip=0x" ADDRX "\n",
1990 env->gpr[0], env->gpr[3], env->gpr[4],
1991 env->gpr[5], env->gpr[6], env->nip);
1994 /* Note that this function should be greatly optimized
1995 * when called with a constant excp, from ppc_hw_interrupt
1997 static always_inline void powerpc_excp (CPUState *env,
1998 int excp_model, int excp)
2000 target_ulong msr, vector;
2001 int srr0, srr1, asrr0, asrr1;
2003 if (loglevel & CPU_LOG_INT) {
2004 fprintf(logfile, "Raise exception at 0x" ADDRX " => 0x%08x (%02x)\n",
2005 env->nip, excp, env->error_code);
2007 msr = do_load_msr(env);
2012 msr &= ~((target_ulong)0x783F0000);
2014 case POWERPC_EXCP_NONE:
2015 /* Should never happen */
2017 case POWERPC_EXCP_CRITICAL: /* Critical input */
2018 msr_ri = 0; /* XXX: check this */
2019 switch (excp_model) {
2020 case POWERPC_EXCP_40x:
2021 srr0 = SPR_40x_SRR2;
2022 srr1 = SPR_40x_SRR3;
2024 case POWERPC_EXCP_BOOKE:
2025 srr0 = SPR_BOOKE_CSRR0;
2026 srr1 = SPR_BOOKE_CSRR1;
2028 case POWERPC_EXCP_G2:
2034 case POWERPC_EXCP_MCHECK: /* Machine check exception */
2036 /* Machine check exception is not enabled */
2037 /* XXX: we may just stop the processor here, to allow debugging */
2038 excp = POWERPC_EXCP_RESET;
2043 #if defined(TARGET_PPC64H)
2046 /* XXX: should also have something loaded in DAR / DSISR */
2047 switch (excp_model) {
2048 case POWERPC_EXCP_40x:
2049 srr0 = SPR_40x_SRR2;
2050 srr1 = SPR_40x_SRR3;
2052 case POWERPC_EXCP_BOOKE:
2053 srr0 = SPR_BOOKE_MCSRR0;
2054 srr1 = SPR_BOOKE_MCSRR1;
2055 asrr0 = SPR_BOOKE_CSRR0;
2056 asrr1 = SPR_BOOKE_CSRR1;
2062 case POWERPC_EXCP_DSI: /* Data storage exception */
2063 #if defined (DEBUG_EXCEPTIONS)
2064 if (loglevel != 0) {
2065 fprintf(logfile, "DSI exception: DSISR=0x" ADDRX" DAR=0x" ADDRX
2066 "\n", env->spr[SPR_DSISR], env->spr[SPR_DAR]);
2070 #if defined(TARGET_PPC64H)
2075 case POWERPC_EXCP_ISI: /* Instruction storage exception */
2076 #if defined (DEBUG_EXCEPTIONS)
2077 if (loglevel != 0) {
2078 fprintf(logfile, "ISI exception: msr=0x" ADDRX ", nip=0x" ADDRX
2079 "\n", msr, env->nip);
2083 #if defined(TARGET_PPC64H)
2087 msr |= env->error_code;
2089 case POWERPC_EXCP_EXTERNAL: /* External input */
2091 #if defined(TARGET_PPC64H)
2096 case POWERPC_EXCP_ALIGN: /* Alignment exception */
2098 #if defined(TARGET_PPC64H)
2102 /* XXX: this is false */
2103 /* Get rS/rD and rA from faulting opcode */
2104 env->spr[SPR_DSISR] |= (ldl_code((env->nip - 4)) & 0x03FF0000) >> 16;
2106 case POWERPC_EXCP_PROGRAM: /* Program exception */
2107 switch (env->error_code & ~0xF) {
2108 case POWERPC_EXCP_FP:
2109 if ((msr_fe0 == 0 && msr_fe1 == 0) || msr_fp == 0) {
2110 #if defined (DEBUG_EXCEPTIONS)
2111 if (loglevel != 0) {
2112 fprintf(logfile, "Ignore floating point exception\n");
2118 #if defined(TARGET_PPC64H)
2124 env->fpscr[7] |= 0x8;
2125 /* Finally, update FEX */
2126 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
2127 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
2128 env->fpscr[7] |= 0x4;
2129 if (msr_fe0 != msr_fe1) {
2134 case POWERPC_EXCP_INVAL:
2135 #if defined (DEBUG_EXCEPTIONS)
2136 if (loglevel != 0) {
2137 fprintf(logfile, "Invalid instruction at 0x" ADDRX "\n",
2142 #if defined(TARGET_PPC64H)
2148 case POWERPC_EXCP_PRIV:
2150 #if defined(TARGET_PPC64H)
2156 case POWERPC_EXCP_TRAP:
2158 #if defined(TARGET_PPC64H)
2165 /* Should never occur */
2166 cpu_abort(env, "Invalid program exception %d. Aborting\n",
2171 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
2173 #if defined(TARGET_PPC64H)
2178 case POWERPC_EXCP_SYSCALL: /* System call exception */
2179 /* NOTE: this is a temporary hack to support graphics OSI
2180 calls from the MOL driver */
2181 /* XXX: To be removed */
2182 if (env->gpr[3] == 0x113724fa && env->gpr[4] == 0x77810f9b &&
2184 if (env->osi_call(env) != 0)
2187 if (loglevel & CPU_LOG_INT) {
2191 #if defined(TARGET_PPC64H)
2192 if (lev == 1 || (lpes0 == 0 && lpes1 == 0))
2196 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
2199 case POWERPC_EXCP_DECR: /* Decrementer exception */
2201 #if defined(TARGET_PPC64H)
2206 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
2208 #if defined (DEBUG_EXCEPTIONS)
2210 fprintf(logfile, "FIT exception\n");
2212 msr_ri = 0; /* XXX: check this */
2214 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
2215 #if defined (DEBUG_EXCEPTIONS)
2217 fprintf(logfile, "WDT exception\n");
2219 switch (excp_model) {
2220 case POWERPC_EXCP_BOOKE:
2221 srr0 = SPR_BOOKE_CSRR0;
2222 srr1 = SPR_BOOKE_CSRR1;
2227 msr_ri = 0; /* XXX: check this */
2229 case POWERPC_EXCP_DTLB: /* Data TLB error */
2230 msr_ri = 0; /* XXX: check this */
2232 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
2233 msr_ri = 0; /* XXX: check this */
2235 case POWERPC_EXCP_DEBUG: /* Debug interrupt */
2236 switch (excp_model) {
2237 case POWERPC_EXCP_BOOKE:
2238 srr0 = SPR_BOOKE_DSRR0;
2239 srr1 = SPR_BOOKE_DSRR1;
2240 asrr0 = SPR_BOOKE_CSRR0;
2241 asrr1 = SPR_BOOKE_CSRR1;
2247 cpu_abort(env, "Debug exception is not implemented yet !\n");
2249 #if defined(TARGET_PPCEMB)
2250 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavailable */
2251 msr_ri = 0; /* XXX: check this */
2253 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data interrupt */
2255 cpu_abort(env, "Embedded floating point data exception "
2256 "is not implemented yet !\n");
2258 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round interrupt */
2260 cpu_abort(env, "Embedded floating point round exception "
2261 "is not implemented yet !\n");
2263 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor interrupt */
2267 "Performance counter exception is not implemented yet !\n");
2269 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
2272 "Embedded doorbell interrupt is not implemented yet !\n");
2274 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
2275 switch (excp_model) {
2276 case POWERPC_EXCP_BOOKE:
2277 srr0 = SPR_BOOKE_CSRR0;
2278 srr1 = SPR_BOOKE_CSRR1;
2284 cpu_abort(env, "Embedded doorbell critical interrupt "
2285 "is not implemented yet !\n");
2287 #endif /* defined(TARGET_PPCEMB) */
2288 case POWERPC_EXCP_RESET: /* System reset exception */
2290 #if defined(TARGET_PPC64H)
2295 #if defined(TARGET_PPC64)
2296 case POWERPC_EXCP_DSEG: /* Data segment exception */
2298 #if defined(TARGET_PPC64H)
2303 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
2305 #if defined(TARGET_PPC64H)
2310 #endif /* defined(TARGET_PPC64) */
2311 #if defined(TARGET_PPC64H)
2312 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
2318 case POWERPC_EXCP_TRACE: /* Trace exception */
2320 #if defined(TARGET_PPC64H)
2325 #if defined(TARGET_PPC64H)
2326 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
2331 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage exception */
2336 cpu_abort(env, "Hypervisor instruction storage exception "
2337 "is not implemented yet !\n");
2339 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
2344 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment exception */
2349 #endif /* defined(TARGET_PPC64H) */
2350 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
2352 #if defined(TARGET_PPC64H)
2357 case POWERPC_EXCP_PIT: /* Programmable interval timer interrupt */
2358 #if defined (DEBUG_EXCEPTIONS)
2360 fprintf(logfile, "PIT exception\n");
2362 msr_ri = 0; /* XXX: check this */
2364 case POWERPC_EXCP_IO: /* IO error exception */
2366 cpu_abort(env, "601 IO error exception is not implemented yet !\n");
2368 case POWERPC_EXCP_RUNM: /* Run mode exception */
2370 cpu_abort(env, "601 run mode exception is not implemented yet !\n");
2372 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
2374 cpu_abort(env, "602 emulation trap exception "
2375 "is not implemented yet !\n");
2377 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
2378 msr_ri = 0; /* XXX: check this */
2379 #if defined(TARGET_PPC64H) /* XXX: check this */
2383 switch (excp_model) {
2384 case POWERPC_EXCP_602:
2385 case POWERPC_EXCP_603:
2386 case POWERPC_EXCP_603E:
2387 case POWERPC_EXCP_G2:
2389 case POWERPC_EXCP_7x5:
2391 case POWERPC_EXCP_74xx:
2394 cpu_abort(env, "Invalid instruction TLB miss exception\n");
2398 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
2399 msr_ri = 0; /* XXX: check this */
2400 #if defined(TARGET_PPC64H) /* XXX: check this */
2404 switch (excp_model) {
2405 case POWERPC_EXCP_602:
2406 case POWERPC_EXCP_603:
2407 case POWERPC_EXCP_603E:
2408 case POWERPC_EXCP_G2:
2410 case POWERPC_EXCP_7x5:
2412 case POWERPC_EXCP_74xx:
2415 cpu_abort(env, "Invalid data load TLB miss exception\n");
2419 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
2420 msr_ri = 0; /* XXX: check this */
2421 #if defined(TARGET_PPC64H) /* XXX: check this */
2425 switch (excp_model) {
2426 case POWERPC_EXCP_602:
2427 case POWERPC_EXCP_603:
2428 case POWERPC_EXCP_603E:
2429 case POWERPC_EXCP_G2:
2431 /* Swap temporary saved registers with GPRs */
2435 case POWERPC_EXCP_7x5:
2437 #if defined (DEBUG_SOFTWARE_TLB)
2438 if (loglevel != 0) {
2439 const unsigned char *es;
2440 target_ulong *miss, *cmp;
2442 if (excp == POWERPC_EXCP_IFTLB) {
2445 miss = &env->spr[SPR_IMISS];
2446 cmp = &env->spr[SPR_ICMP];
2448 if (excp == POWERPC_EXCP_DLTLB)
2453 miss = &env->spr[SPR_DMISS];
2454 cmp = &env->spr[SPR_DCMP];
2456 fprintf(logfile, "6xx %sTLB miss: %cM " ADDRX " %cC " ADDRX
2457 " H1 " ADDRX " H2 " ADDRX " %08x\n",
2458 es, en, *miss, en, *cmp,
2459 env->spr[SPR_HASH1], env->spr[SPR_HASH2],
2463 msr |= env->crf[0] << 28;
2464 msr |= env->error_code; /* key, D/I, S/L bits */
2465 /* Set way using a LRU mechanism */
2466 msr |= ((env->last_way + 1) & (env->nb_ways - 1)) << 17;
2468 case POWERPC_EXCP_74xx:
2470 #if defined (DEBUG_SOFTWARE_TLB)
2471 if (loglevel != 0) {
2472 const unsigned char *es;
2473 target_ulong *miss, *cmp;
2475 if (excp == POWERPC_EXCP_IFTLB) {
2478 miss = &env->spr[SPR_IMISS];
2479 cmp = &env->spr[SPR_ICMP];
2481 if (excp == POWERPC_EXCP_DLTLB)
2486 miss = &env->spr[SPR_TLBMISS];
2487 cmp = &env->spr[SPR_PTEHI];
2489 fprintf(logfile, "74xx %sTLB miss: %cM " ADDRX " %cC " ADDRX
2491 es, en, *miss, en, *cmp, env->error_code);
2494 msr |= env->error_code; /* key bit */
2497 cpu_abort(env, "Invalid data store TLB miss exception\n");
2501 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
2503 cpu_abort(env, "Floating point assist exception "
2504 "is not implemented yet !\n");
2506 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
2508 cpu_abort(env, "IABR exception is not implemented yet !\n");
2510 case POWERPC_EXCP_SMI: /* System management interrupt */
2512 cpu_abort(env, "SMI exception is not implemented yet !\n");
2514 case POWERPC_EXCP_THERM: /* Thermal interrupt */
2516 cpu_abort(env, "Thermal management exception "
2517 "is not implemented yet !\n");
2519 case POWERPC_EXCP_PERFM: /* Embedded performance monitor interrupt */
2521 #if defined(TARGET_PPC64H)
2527 "Performance counter exception is not implemented yet !\n");
2529 case POWERPC_EXCP_VPUA: /* Vector assist exception */
2531 cpu_abort(env, "VPU assist exception is not implemented yet !\n");
2533 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
2536 "970 soft-patch exception is not implemented yet !\n");
2538 case POWERPC_EXCP_MAINT: /* Maintenance exception */
2541 "970 maintenance exception is not implemented yet !\n");
2545 cpu_abort(env, "Invalid PowerPC exception %d. Aborting\n", excp);
2548 /* save current instruction location */
2549 env->spr[srr0] = env->nip - 4;
2552 /* save next instruction location */
2553 env->spr[srr0] = env->nip;
2557 env->spr[srr1] = msr;
2558 /* If any alternate SRR register are defined, duplicate saved values */
2560 env->spr[asrr0] = env->spr[srr0];
2562 env->spr[asrr1] = env->spr[srr1];
2563 /* If we disactivated any translation, flush TLBs */
2564 if (msr_ir || msr_dr)
2566 /* reload MSR with correct bits */
2576 #if 0 /* Fix this: not on all targets */
2580 do_compute_hflags(env);
2581 /* Jump to handler */
2582 vector = env->excp_vectors[excp];
2583 if (vector == (target_ulong)-1) {
2584 cpu_abort(env, "Raised an exception without defined vector %d\n",
2587 vector |= env->excp_prefix;
2588 #if defined(TARGET_PPC64)
2589 if (excp_model == POWERPC_EXCP_BOOKE) {
2592 vector = (uint32_t)vector;
2596 vector = (uint32_t)vector;
2600 /* Reset exception state */
2601 env->exception_index = POWERPC_EXCP_NONE;
2602 env->error_code = 0;
2605 void do_interrupt (CPUState *env)
2607 powerpc_excp(env, env->excp_model, env->exception_index);
2610 void ppc_hw_interrupt (CPUPPCState *env)
2613 if (loglevel & CPU_LOG_INT) {
2614 fprintf(logfile, "%s: %p pending %08x req %08x me %d ee %d\n",
2615 __func__, env, env->pending_interrupts,
2616 env->interrupt_request, msr_me, msr_ee);
2619 /* External reset */
2620 if (env->pending_interrupts & (1 << PPC_INTERRUPT_RESET)) {
2621 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_RESET);
2622 powerpc_excp(env, env->excp_model, POWERPC_EXCP_RESET);
2625 /* Machine check exception */
2626 if (env->pending_interrupts & (1 << PPC_INTERRUPT_MCK)) {
2627 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_MCK);
2628 powerpc_excp(env, env->excp_model, POWERPC_EXCP_MCHECK);
2632 /* External debug exception */
2633 if (env->pending_interrupts & (1 << PPC_INTERRUPT_DEBUG)) {
2634 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DEBUG);
2635 powerpc_excp(env, env->excp_model, POWERPC_EXCP_DEBUG);
2639 #if defined(TARGET_PPC64H)
2640 if ((msr_ee != 0 || msr_hv == 0 || msr_pr == 1) & hdice != 0) {
2641 /* Hypervisor decrementer exception */
2642 if (env->pending_interrupts & (1 << PPC_INTERRUPT_HDECR)) {
2643 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_HDECR);
2644 powerpc_excp(env, env->excp_model, POWERPC_EXCP_HDECR);
2650 /* External critical interrupt */
2651 if (env->pending_interrupts & (1 << PPC_INTERRUPT_CEXT)) {
2652 /* Taking a critical external interrupt does not clear the external
2653 * critical interrupt status
2656 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CEXT);
2658 powerpc_excp(env, env->excp_model, POWERPC_EXCP_CRITICAL);
2663 /* Watchdog timer on embedded PowerPC */
2664 if (env->pending_interrupts & (1 << PPC_INTERRUPT_WDT)) {
2665 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_WDT);
2666 powerpc_excp(env, env->excp_model, POWERPC_EXCP_WDT);
2669 #if defined(TARGET_PPCEMB)
2670 if (env->pending_interrupts & (1 << PPC_INTERRUPT_CDOORBELL)) {
2671 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CDOORBELL);
2672 powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORCI);
2676 #if defined(TARGET_PPCEMB)
2677 /* External interrupt */
2678 if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
2679 /* Taking an external interrupt does not clear the external
2683 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
2685 powerpc_excp(env, env->excp_model, POWERPC_EXCP_EXTERNAL);
2689 /* Fixed interval timer on embedded PowerPC */
2690 if (env->pending_interrupts & (1 << PPC_INTERRUPT_FIT)) {
2691 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_FIT);
2692 powerpc_excp(env, env->excp_model, POWERPC_EXCP_FIT);
2695 /* Programmable interval timer on embedded PowerPC */
2696 if (env->pending_interrupts & (1 << PPC_INTERRUPT_PIT)) {
2697 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PIT);
2698 powerpc_excp(env, env->excp_model, POWERPC_EXCP_PIT);
2701 /* Decrementer exception */
2702 if (env->pending_interrupts & (1 << PPC_INTERRUPT_DECR)) {
2703 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DECR);
2704 powerpc_excp(env, env->excp_model, POWERPC_EXCP_DECR);
2707 #if !defined(TARGET_PPCEMB)
2708 /* External interrupt */
2709 if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
2710 /* Taking an external interrupt does not clear the external
2714 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
2716 powerpc_excp(env, env->excp_model, POWERPC_EXCP_EXTERNAL);
2720 #if defined(TARGET_PPCEMB)
2721 if (env->pending_interrupts & (1 << PPC_INTERRUPT_DOORBELL)) {
2722 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DOORBELL);
2723 powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORI);
2727 if (env->pending_interrupts & (1 << PPC_INTERRUPT_PERFM)) {
2728 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PERFM);
2729 powerpc_excp(env, env->excp_model, POWERPC_EXCP_PERFM);
2732 /* Thermal interrupt */
2733 if (env->pending_interrupts & (1 << PPC_INTERRUPT_THERM)) {
2734 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_THERM);
2735 powerpc_excp(env, env->excp_model, POWERPC_EXCP_THERM);
2740 #endif /* !CONFIG_USER_ONLY */
2742 void cpu_dump_EA (target_ulong EA)
2752 fprintf(f, "Memory access at address " ADDRX "\n", EA);
2755 void cpu_dump_rfi (target_ulong RA, target_ulong msr)
2765 fprintf(f, "Return from exception at " ADDRX " with flags " ADDRX "\n",
2769 void cpu_ppc_reset (void *opaque)
2775 /* XXX: some of those flags initialisation values could depend
2776 * on the actual PowerPC implementation
2778 for (i = 0; i < 63; i++)
2780 #if defined(TARGET_PPC64)
2781 msr_hv = 0; /* Should be 1... */
2783 msr_ap = 0; /* TO BE CHECKED */
2784 msr_sa = 0; /* TO BE CHECKED */
2785 msr_ip = 0; /* TO BE CHECKED */
2786 #if defined (DO_SINGLE_STEP) && 0
2787 /* Single step trace mode */
2791 #if defined(CONFIG_USER_ONLY)
2792 msr_fp = 1; /* Allow floating point exceptions */
2795 #if defined(TARGET_PPC64)
2796 env->nip = 0x00000100;
2798 env->nip = 0xFFFFFFFC;
2800 ppc_tlb_invalidate_all(env);
2802 do_compute_hflags(env);
2804 /* Be sure no exception or interrupt is pending */
2805 env->pending_interrupts = 0;
2806 env->exception_index = POWERPC_EXCP_NONE;
2807 env->error_code = 0;
2808 /* Flush all TLBs */
2812 CPUPPCState *cpu_ppc_init (void)
2816 env = qemu_mallocz(sizeof(CPUPPCState));
2824 void cpu_ppc_close (CPUPPCState *env)
2826 /* Should also remove all opcode tables... */