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;
50 exception = POWERPC_EXCP_DSI;
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)
1230 int exception = 0, error_code = 0;
1237 access_type = ACCESS_CODE;
1240 /* XXX: put correct access by using cpu_restore_state()
1242 access_type = ACCESS_INT;
1243 // access_type = env->access_type;
1245 ret = get_physical_address(env, &ctx, address, rw, access_type, 1);
1247 ret = tlb_set_page(env, address & TARGET_PAGE_MASK,
1248 ctx.raddr & TARGET_PAGE_MASK, ctx.prot,
1249 is_user, is_softmmu);
1250 } else if (ret < 0) {
1251 #if defined (DEBUG_MMU)
1253 cpu_dump_state(env, logfile, fprintf, 0);
1255 if (access_type == ACCESS_CODE) {
1256 exception = POWERPC_EXCP_ISI;
1259 /* No matches in page tables or TLB */
1260 switch (env->mmu_model) {
1261 case POWERPC_MMU_SOFT_6xx:
1262 exception = POWERPC_EXCP_IFTLB;
1263 env->spr[SPR_IMISS] = address;
1264 env->spr[SPR_ICMP] = 0x80000000 | ctx.ptem;
1265 error_code = 1 << 18;
1267 case POWERPC_MMU_SOFT_74xx:
1268 exception = POWERPC_EXCP_IFTLB;
1270 case POWERPC_MMU_SOFT_4xx:
1271 case POWERPC_MMU_SOFT_4xx_Z:
1272 exception = POWERPC_EXCP_ITLB;
1274 env->spr[SPR_40x_DEAR] = address;
1275 env->spr[SPR_40x_ESR] = 0x00000000;
1277 case POWERPC_MMU_32B:
1278 error_code = 0x40000000;
1280 #if defined(TARGET_PPC64)
1281 case POWERPC_MMU_64B:
1283 cpu_abort(env, "MMU model not implemented\n");
1285 case POWERPC_MMU_64BRIDGE:
1287 cpu_abort(env, "MMU model not implemented\n");
1290 case POWERPC_MMU_601:
1292 cpu_abort(env, "MMU model not implemented\n");
1294 case POWERPC_MMU_BOOKE:
1296 cpu_abort(env, "MMU model not implemented\n");
1298 case POWERPC_MMU_BOOKE_FSL:
1300 cpu_abort(env, "MMU model not implemented\n");
1302 case POWERPC_MMU_REAL_4xx:
1303 cpu_abort(env, "PowerPC 401 should never raise any MMU "
1307 cpu_abort(env, "Unknown or invalid MMU model\n");
1312 /* Access rights violation */
1313 error_code = 0x08000000;
1316 /* No execute protection violation */
1317 error_code = 0x10000000;
1320 /* Direct store exception */
1321 /* No code fetch is allowed in direct-store areas */
1322 error_code = 0x10000000;
1324 #if defined(TARGET_PPC64)
1326 /* No match in segment table */
1327 exception = POWERPC_EXCP_ISEG;
1333 exception = POWERPC_EXCP_DSI;
1336 /* No matches in page tables or TLB */
1337 switch (env->mmu_model) {
1338 case POWERPC_MMU_SOFT_6xx:
1340 exception = POWERPC_EXCP_DSTLB;
1341 error_code = 1 << 16;
1343 exception = POWERPC_EXCP_DLTLB;
1346 env->spr[SPR_DMISS] = address;
1347 env->spr[SPR_DCMP] = 0x80000000 | ctx.ptem;
1349 error_code |= ctx.key << 19;
1350 env->spr[SPR_HASH1] = ctx.pg_addr[0];
1351 env->spr[SPR_HASH2] = ctx.pg_addr[1];
1352 /* Do not alter DAR nor DSISR */
1354 case POWERPC_MMU_SOFT_74xx:
1356 exception = POWERPC_EXCP_DSTLB;
1358 exception = POWERPC_EXCP_DLTLB;
1361 /* Implement LRU algorithm */
1362 env->spr[SPR_TLBMISS] = (address & ~((target_ulong)0x3)) |
1363 ((env->last_way + 1) & (env->nb_ways - 1));
1364 env->spr[SPR_PTEHI] = 0x80000000 | ctx.ptem;
1365 error_code = ctx.key << 19;
1367 case POWERPC_MMU_SOFT_4xx:
1368 case POWERPC_MMU_SOFT_4xx_Z:
1369 exception = POWERPC_EXCP_DTLB;
1371 env->spr[SPR_40x_DEAR] = address;
1373 env->spr[SPR_40x_ESR] = 0x00800000;
1375 env->spr[SPR_40x_ESR] = 0x00000000;
1377 case POWERPC_MMU_32B:
1378 error_code = 0x40000000;
1380 #if defined(TARGET_PPC64)
1381 case POWERPC_MMU_64B:
1383 cpu_abort(env, "MMU model not implemented\n");
1385 case POWERPC_MMU_64BRIDGE:
1387 cpu_abort(env, "MMU model not implemented\n");
1390 case POWERPC_MMU_601:
1392 cpu_abort(env, "MMU model not implemented\n");
1394 case POWERPC_MMU_BOOKE:
1396 cpu_abort(env, "MMU model not implemented\n");
1398 case POWERPC_MMU_BOOKE_FSL:
1400 cpu_abort(env, "MMU model not implemented\n");
1402 case POWERPC_MMU_REAL_4xx:
1403 cpu_abort(env, "PowerPC 401 should never raise any MMU "
1407 cpu_abort(env, "Unknown or invalid MMU model\n");
1412 /* Access rights violation */
1413 error_code = 0x08000000;
1416 /* Direct store exception */
1417 switch (access_type) {
1419 /* Floating point load/store */
1420 exception = POWERPC_EXCP_ALIGN;
1421 error_code = POWERPC_EXCP_ALIGN_FP;
1424 /* lwarx, ldarx or srwcx. */
1425 error_code = 0x04000000;
1428 /* eciwx or ecowx */
1429 error_code = 0x04100000;
1432 printf("DSI: invalid exception (%d)\n", ret);
1433 exception = POWERPC_EXCP_PROGRAM;
1434 error_code = POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL;
1438 #if defined(TARGET_PPC64)
1440 /* No match in segment table */
1441 exception = POWERPC_EXCP_DSEG;
1446 if (exception == POWERPC_EXCP_DSI && rw == 1)
1447 error_code |= 0x02000000;
1448 /* Store fault address */
1449 env->spr[SPR_DAR] = address;
1450 env->spr[SPR_DSISR] = error_code;
1454 printf("%s: set exception to %d %02x\n",
1455 __func__, exception, error_code);
1457 env->exception_index = exception;
1458 env->error_code = error_code;
1465 /*****************************************************************************/
1466 /* BATs management */
1467 #if !defined(FLUSH_ALL_TLBS)
1468 static inline void do_invalidate_BAT (CPUPPCState *env,
1469 target_ulong BATu, target_ulong mask)
1471 target_ulong base, end, page;
1473 base = BATu & ~0x0001FFFF;
1474 end = base + mask + 0x00020000;
1475 #if defined (DEBUG_BATS)
1476 if (loglevel != 0) {
1477 fprintf(logfile, "Flush BAT from " ADDRX " to " ADDRX " (" ADDRX ")\n",
1481 for (page = base; page != end; page += TARGET_PAGE_SIZE)
1482 tlb_flush_page(env, page);
1483 #if defined (DEBUG_BATS)
1485 fprintf(logfile, "Flush done\n");
1490 static inline void dump_store_bat (CPUPPCState *env, char ID, int ul, int nr,
1493 #if defined (DEBUG_BATS)
1494 if (loglevel != 0) {
1495 fprintf(logfile, "Set %cBAT%d%c to 0x" ADDRX " (0x" ADDRX ")\n",
1496 ID, nr, ul == 0 ? 'u' : 'l', value, env->nip);
1501 target_ulong do_load_ibatu (CPUPPCState *env, int nr)
1503 return env->IBAT[0][nr];
1506 target_ulong do_load_ibatl (CPUPPCState *env, int nr)
1508 return env->IBAT[1][nr];
1511 void do_store_ibatu (CPUPPCState *env, int nr, target_ulong value)
1515 dump_store_bat(env, 'I', 0, nr, value);
1516 if (env->IBAT[0][nr] != value) {
1517 mask = (value << 15) & 0x0FFE0000UL;
1518 #if !defined(FLUSH_ALL_TLBS)
1519 do_invalidate_BAT(env, env->IBAT[0][nr], mask);
1521 /* When storing valid upper BAT, mask BEPI and BRPN
1522 * and invalidate all TLBs covered by this BAT
1524 mask = (value << 15) & 0x0FFE0000UL;
1525 env->IBAT[0][nr] = (value & 0x00001FFFUL) |
1526 (value & ~0x0001FFFFUL & ~mask);
1527 env->IBAT[1][nr] = (env->IBAT[1][nr] & 0x0000007B) |
1528 (env->IBAT[1][nr] & ~0x0001FFFF & ~mask);
1529 #if !defined(FLUSH_ALL_TLBS)
1530 do_invalidate_BAT(env, env->IBAT[0][nr], mask);
1537 void do_store_ibatl (CPUPPCState *env, int nr, target_ulong value)
1539 dump_store_bat(env, 'I', 1, nr, value);
1540 env->IBAT[1][nr] = value;
1543 target_ulong do_load_dbatu (CPUPPCState *env, int nr)
1545 return env->DBAT[0][nr];
1548 target_ulong do_load_dbatl (CPUPPCState *env, int nr)
1550 return env->DBAT[1][nr];
1553 void do_store_dbatu (CPUPPCState *env, int nr, target_ulong value)
1557 dump_store_bat(env, 'D', 0, nr, value);
1558 if (env->DBAT[0][nr] != value) {
1559 /* When storing valid upper BAT, mask BEPI and BRPN
1560 * and invalidate all TLBs covered by this BAT
1562 mask = (value << 15) & 0x0FFE0000UL;
1563 #if !defined(FLUSH_ALL_TLBS)
1564 do_invalidate_BAT(env, env->DBAT[0][nr], mask);
1566 mask = (value << 15) & 0x0FFE0000UL;
1567 env->DBAT[0][nr] = (value & 0x00001FFFUL) |
1568 (value & ~0x0001FFFFUL & ~mask);
1569 env->DBAT[1][nr] = (env->DBAT[1][nr] & 0x0000007B) |
1570 (env->DBAT[1][nr] & ~0x0001FFFF & ~mask);
1571 #if !defined(FLUSH_ALL_TLBS)
1572 do_invalidate_BAT(env, env->DBAT[0][nr], mask);
1579 void do_store_dbatl (CPUPPCState *env, int nr, target_ulong value)
1581 dump_store_bat(env, 'D', 1, nr, value);
1582 env->DBAT[1][nr] = value;
1586 /*****************************************************************************/
1587 /* TLB management */
1588 void ppc_tlb_invalidate_all (CPUPPCState *env)
1590 switch (env->mmu_model) {
1591 case POWERPC_MMU_SOFT_6xx:
1592 case POWERPC_MMU_SOFT_74xx:
1593 ppc6xx_tlb_invalidate_all(env);
1595 case POWERPC_MMU_SOFT_4xx:
1596 case POWERPC_MMU_SOFT_4xx_Z:
1597 ppc4xx_tlb_invalidate_all(env);
1599 case POWERPC_MMU_REAL_4xx:
1600 cpu_abort(env, "No TLB for PowerPC 4xx in real mode\n");
1602 case POWERPC_MMU_BOOKE:
1604 cpu_abort(env, "MMU model not implemented\n");
1606 case POWERPC_MMU_BOOKE_FSL:
1608 cpu_abort(env, "MMU model not implemented\n");
1610 case POWERPC_MMU_601:
1612 cpu_abort(env, "MMU model not implemented\n");
1614 case POWERPC_MMU_32B:
1615 case POWERPC_MMU_64B:
1616 case POWERPC_MMU_64BRIDGE:
1622 void ppc_tlb_invalidate_one (CPUPPCState *env, target_ulong addr)
1624 #if !defined(FLUSH_ALL_TLBS)
1625 addr &= TARGET_PAGE_MASK;
1626 switch (env->mmu_model) {
1627 case POWERPC_MMU_SOFT_6xx:
1628 case POWERPC_MMU_SOFT_74xx:
1629 ppc6xx_tlb_invalidate_virt(env, addr, 0);
1630 if (env->id_tlbs == 1)
1631 ppc6xx_tlb_invalidate_virt(env, addr, 1);
1633 case POWERPC_MMU_SOFT_4xx:
1634 case POWERPC_MMU_SOFT_4xx_Z:
1635 ppc4xx_tlb_invalidate_virt(env, addr, env->spr[SPR_40x_PID]);
1637 case POWERPC_MMU_REAL_4xx:
1638 cpu_abort(env, "No TLB for PowerPC 4xx in real mode\n");
1640 case POWERPC_MMU_BOOKE:
1642 cpu_abort(env, "MMU model not implemented\n");
1644 case POWERPC_MMU_BOOKE_FSL:
1646 cpu_abort(env, "MMU model not implemented\n");
1648 case POWERPC_MMU_601:
1650 cpu_abort(env, "MMU model not implemented\n");
1652 case POWERPC_MMU_32B:
1653 /* tlbie invalidate TLBs for all segments */
1654 addr &= ~((target_ulong)-1 << 28);
1655 /* XXX: this case should be optimized,
1656 * giving a mask to tlb_flush_page
1658 tlb_flush_page(env, addr | (0x0 << 28));
1659 tlb_flush_page(env, addr | (0x1 << 28));
1660 tlb_flush_page(env, addr | (0x2 << 28));
1661 tlb_flush_page(env, addr | (0x3 << 28));
1662 tlb_flush_page(env, addr | (0x4 << 28));
1663 tlb_flush_page(env, addr | (0x5 << 28));
1664 tlb_flush_page(env, addr | (0x6 << 28));
1665 tlb_flush_page(env, addr | (0x7 << 28));
1666 tlb_flush_page(env, addr | (0x8 << 28));
1667 tlb_flush_page(env, addr | (0x9 << 28));
1668 tlb_flush_page(env, addr | (0xA << 28));
1669 tlb_flush_page(env, addr | (0xB << 28));
1670 tlb_flush_page(env, addr | (0xC << 28));
1671 tlb_flush_page(env, addr | (0xD << 28));
1672 tlb_flush_page(env, addr | (0xE << 28));
1673 tlb_flush_page(env, addr | (0xF << 28));
1675 case POWERPC_MMU_64B:
1676 case POWERPC_MMU_64BRIDGE:
1677 /* tlbie invalidate TLBs for all segments */
1678 /* XXX: given the fact that there are too many segments to invalidate,
1679 * we just invalidate all TLBs
1685 ppc_tlb_invalidate_all(env);
1689 #if defined(TARGET_PPC64)
1690 void ppc_slb_invalidate_all (CPUPPCState *env)
1696 void ppc_slb_invalidate_one (CPUPPCState *env, uint64_t T0)
1704 /*****************************************************************************/
1705 /* Special registers manipulation */
1706 #if defined(TARGET_PPC64)
1707 target_ulong ppc_load_asr (CPUPPCState *env)
1712 void ppc_store_asr (CPUPPCState *env, target_ulong value)
1714 if (env->asr != value) {
1721 target_ulong do_load_sdr1 (CPUPPCState *env)
1726 void do_store_sdr1 (CPUPPCState *env, target_ulong value)
1728 #if defined (DEBUG_MMU)
1729 if (loglevel != 0) {
1730 fprintf(logfile, "%s: 0x" ADDRX "\n", __func__, value);
1733 if (env->sdr1 != value) {
1739 target_ulong do_load_sr (CPUPPCState *env, int srnum)
1741 return env->sr[srnum];
1744 void do_store_sr (CPUPPCState *env, int srnum, target_ulong value)
1746 #if defined (DEBUG_MMU)
1747 if (loglevel != 0) {
1748 fprintf(logfile, "%s: reg=%d 0x" ADDRX " " ADDRX "\n",
1749 __func__, srnum, value, env->sr[srnum]);
1752 if (env->sr[srnum] != value) {
1753 env->sr[srnum] = value;
1754 #if !defined(FLUSH_ALL_TLBS) && 0
1756 target_ulong page, end;
1757 /* Invalidate 256 MB of virtual memory */
1758 page = (16 << 20) * srnum;
1759 end = page + (16 << 20);
1760 for (; page != end; page += TARGET_PAGE_SIZE)
1761 tlb_flush_page(env, page);
1768 #endif /* !defined (CONFIG_USER_ONLY) */
1770 target_ulong ppc_load_xer (CPUPPCState *env)
1772 return (xer_so << XER_SO) |
1773 (xer_ov << XER_OV) |
1774 (xer_ca << XER_CA) |
1775 (xer_bc << XER_BC) |
1776 (xer_cmp << XER_CMP);
1779 void ppc_store_xer (CPUPPCState *env, target_ulong value)
1781 xer_so = (value >> XER_SO) & 0x01;
1782 xer_ov = (value >> XER_OV) & 0x01;
1783 xer_ca = (value >> XER_CA) & 0x01;
1784 xer_cmp = (value >> XER_CMP) & 0xFF;
1785 xer_bc = (value >> XER_BC) & 0x7F;
1788 /* Swap temporary saved registers with GPRs */
1789 static inline void swap_gpr_tgpr (CPUPPCState *env)
1794 env->gpr[0] = env->tgpr[0];
1797 env->gpr[1] = env->tgpr[1];
1800 env->gpr[2] = env->tgpr[2];
1803 env->gpr[3] = env->tgpr[3];
1807 /* GDBstub can read and write MSR... */
1808 target_ulong do_load_msr (CPUPPCState *env)
1811 #if defined (TARGET_PPC64)
1812 ((target_ulong)msr_sf << MSR_SF) |
1813 ((target_ulong)msr_isf << MSR_ISF) |
1814 ((target_ulong)msr_hv << MSR_HV) |
1816 ((target_ulong)msr_ucle << MSR_UCLE) |
1817 ((target_ulong)msr_vr << MSR_VR) | /* VR / SPE */
1818 ((target_ulong)msr_ap << MSR_AP) |
1819 ((target_ulong)msr_sa << MSR_SA) |
1820 ((target_ulong)msr_key << MSR_KEY) |
1821 ((target_ulong)msr_pow << MSR_POW) | /* POW / WE */
1822 ((target_ulong)msr_tlb << MSR_TLB) | /* TLB / TGPE / CE */
1823 ((target_ulong)msr_ile << MSR_ILE) |
1824 ((target_ulong)msr_ee << MSR_EE) |
1825 ((target_ulong)msr_pr << MSR_PR) |
1826 ((target_ulong)msr_fp << MSR_FP) |
1827 ((target_ulong)msr_me << MSR_ME) |
1828 ((target_ulong)msr_fe0 << MSR_FE0) |
1829 ((target_ulong)msr_se << MSR_SE) | /* SE / DWE / UBLE */
1830 ((target_ulong)msr_be << MSR_BE) | /* BE / DE */
1831 ((target_ulong)msr_fe1 << MSR_FE1) |
1832 ((target_ulong)msr_al << MSR_AL) |
1833 ((target_ulong)msr_ip << MSR_IP) |
1834 ((target_ulong)msr_ir << MSR_IR) | /* IR / IS */
1835 ((target_ulong)msr_dr << MSR_DR) | /* DR / DS */
1836 ((target_ulong)msr_pe << MSR_PE) | /* PE / EP */
1837 ((target_ulong)msr_px << MSR_PX) | /* PX / PMM */
1838 ((target_ulong)msr_ri << MSR_RI) |
1839 ((target_ulong)msr_le << MSR_LE);
1842 void do_store_msr (CPUPPCState *env, target_ulong value)
1846 value &= env->msr_mask;
1847 if (((value >> MSR_IR) & 1) != msr_ir ||
1848 ((value >> MSR_DR) & 1) != msr_dr) {
1849 /* Flush all tlb when changing translation mode */
1851 env->interrupt_request |= CPU_INTERRUPT_EXITTB;
1854 if (loglevel != 0) {
1855 fprintf(logfile, "%s: T0 %08lx\n", __func__, value);
1858 switch (env->excp_model) {
1859 case POWERPC_EXCP_602:
1860 case POWERPC_EXCP_603:
1861 case POWERPC_EXCP_603E:
1862 case POWERPC_EXCP_G2:
1863 if (((value >> MSR_TGPR) & 1) != msr_tgpr) {
1864 /* Swap temporary saved registers with GPRs */
1871 #if defined (TARGET_PPC64)
1872 msr_sf = (value >> MSR_SF) & 1;
1873 msr_isf = (value >> MSR_ISF) & 1;
1874 msr_hv = (value >> MSR_HV) & 1;
1876 msr_ucle = (value >> MSR_UCLE) & 1;
1877 msr_vr = (value >> MSR_VR) & 1; /* VR / SPE */
1878 msr_ap = (value >> MSR_AP) & 1;
1879 msr_sa = (value >> MSR_SA) & 1;
1880 msr_key = (value >> MSR_KEY) & 1;
1881 msr_pow = (value >> MSR_POW) & 1; /* POW / WE */
1882 msr_tlb = (value >> MSR_TLB) & 1; /* TLB / TGPR / CE */
1883 msr_ile = (value >> MSR_ILE) & 1;
1884 msr_ee = (value >> MSR_EE) & 1;
1885 msr_pr = (value >> MSR_PR) & 1;
1886 msr_fp = (value >> MSR_FP) & 1;
1887 msr_me = (value >> MSR_ME) & 1;
1888 msr_fe0 = (value >> MSR_FE0) & 1;
1889 msr_se = (value >> MSR_SE) & 1; /* SE / DWE / UBLE */
1890 msr_be = (value >> MSR_BE) & 1; /* BE / DE */
1891 msr_fe1 = (value >> MSR_FE1) & 1;
1892 msr_al = (value >> MSR_AL) & 1;
1893 msr_ip = (value >> MSR_IP) & 1;
1894 msr_ir = (value >> MSR_IR) & 1; /* IR / IS */
1895 msr_dr = (value >> MSR_DR) & 1; /* DR / DS */
1896 msr_pe = (value >> MSR_PE) & 1; /* PE / EP */
1897 msr_px = (value >> MSR_PX) & 1; /* PX / PMM */
1898 msr_ri = (value >> MSR_RI) & 1;
1899 msr_le = (value >> MSR_LE) & 1;
1900 do_compute_hflags(env);
1903 switch (env->excp_model) {
1904 case POWERPC_EXCP_603:
1905 case POWERPC_EXCP_603E:
1906 case POWERPC_EXCP_G2:
1907 /* Don't handle SLEEP mode: we should disable all clocks...
1908 * No dynamic power-management.
1910 if (msr_pow == 1 && (env->spr[SPR_HID0] & 0x00C00000) != 0)
1913 case POWERPC_EXCP_604:
1917 case POWERPC_EXCP_7x0:
1918 if (msr_pow == 1 && (env->spr[SPR_HID0] & 0x00E00000) != 0)
1925 if (likely(!env->halted)) {
1926 /* power save: exit cpu loop */
1928 env->exception_index = EXCP_HLT;
1934 #if defined(TARGET_PPC64)
1935 void ppc_store_msr_32 (CPUPPCState *env, uint32_t value)
1938 (do_load_msr(env) & ~0xFFFFFFFFULL) | (value & 0xFFFFFFFF));
1942 void do_compute_hflags (CPUPPCState *env)
1944 /* Compute current hflags */
1945 env->hflags = (msr_vr << MSR_VR) |
1946 (msr_ap << MSR_AP) | (msr_sa << MSR_SA) | (msr_pr << MSR_PR) |
1947 (msr_fp << MSR_FP) | (msr_fe0 << MSR_FE0) | (msr_se << MSR_SE) |
1948 (msr_be << MSR_BE) | (msr_fe1 << MSR_FE1) | (msr_le << MSR_LE);
1949 #if defined (TARGET_PPC64)
1950 env->hflags |= msr_cm << MSR_CM;
1951 env->hflags |= (uint64_t)msr_sf << MSR_SF;
1952 env->hflags |= (uint64_t)msr_hv << MSR_HV;
1956 /*****************************************************************************/
1957 /* Exception processing */
1958 #if defined (CONFIG_USER_ONLY)
1959 void do_interrupt (CPUState *env)
1961 env->exception_index = POWERPC_EXCP_NONE;
1962 env->error_code = 0;
1965 void ppc_hw_interrupt (CPUState *env)
1967 env->exception_index = POWERPC_EXCP_NONE;
1968 env->error_code = 0;
1970 #else /* defined (CONFIG_USER_ONLY) */
1971 static void dump_syscall (CPUState *env)
1973 fprintf(logfile, "syscall r0=0x" REGX " r3=0x" REGX " r4=0x" REGX
1974 " r5=0x" REGX " r6=0x" REGX " nip=0x" ADDRX "\n",
1975 env->gpr[0], env->gpr[3], env->gpr[4],
1976 env->gpr[5], env->gpr[6], env->nip);
1979 /* Note that this function should be greatly optimized
1980 * when called with a constant excp, from ppc_hw_interrupt
1982 static always_inline void powerpc_excp (CPUState *env,
1983 int excp_model, int excp)
1985 target_ulong msr, vector;
1986 int srr0, srr1, asrr0, asrr1;
1988 if (loglevel & CPU_LOG_INT) {
1989 fprintf(logfile, "Raise exception at 0x" ADDRX " => 0x%08x (%02x)\n",
1990 env->nip, excp, env->error_code);
1992 msr = do_load_msr(env);
1997 msr &= ~((target_ulong)0x783F0000);
1999 case POWERPC_EXCP_NONE:
2000 /* Should never happen */
2002 case POWERPC_EXCP_CRITICAL: /* Critical input */
2003 msr_ri = 0; /* XXX: check this */
2004 switch (excp_model) {
2005 case POWERPC_EXCP_40x:
2006 srr0 = SPR_40x_SRR2;
2007 srr1 = SPR_40x_SRR3;
2009 case POWERPC_EXCP_BOOKE:
2010 srr0 = SPR_BOOKE_CSRR0;
2011 srr1 = SPR_BOOKE_CSRR1;
2013 case POWERPC_EXCP_G2:
2019 case POWERPC_EXCP_MCHECK: /* Machine check exception */
2021 /* Machine check exception is not enabled */
2022 /* XXX: we may just stop the processor here, to allow debugging */
2023 excp = POWERPC_EXCP_RESET;
2028 #if defined(TARGET_PPC64H)
2031 /* XXX: should also have something loaded in DAR / DSISR */
2032 switch (excp_model) {
2033 case POWERPC_EXCP_40x:
2034 srr0 = SPR_40x_SRR2;
2035 srr1 = SPR_40x_SRR3;
2037 case POWERPC_EXCP_BOOKE:
2038 srr0 = SPR_BOOKE_MCSRR0;
2039 srr1 = SPR_BOOKE_MCSRR1;
2040 asrr0 = SPR_BOOKE_CSRR0;
2041 asrr1 = SPR_BOOKE_CSRR1;
2047 case POWERPC_EXCP_DSI: /* Data storage exception */
2048 #if defined (DEBUG_EXCEPTIONS)
2049 if (loglevel != 0) {
2050 fprintf(logfile, "DSI exception: DSISR=0x" ADDRX" DAR=0x" ADDRX
2051 "\n", env->spr[SPR_DSISR], env->spr[SPR_DAR]);
2055 #if defined(TARGET_PPC64H)
2060 case POWERPC_EXCP_ISI: /* Instruction storage exception */
2061 #if defined (DEBUG_EXCEPTIONS)
2062 if (loglevel != 0) {
2063 fprintf(logfile, "ISI exception: msr=0x" ADDRX ", nip=0x" ADDRX
2064 "\n", msr, env->nip);
2068 #if defined(TARGET_PPC64H)
2072 msr |= env->error_code;
2074 case POWERPC_EXCP_EXTERNAL: /* External input */
2076 #if defined(TARGET_PPC64H)
2081 case POWERPC_EXCP_ALIGN: /* Alignment exception */
2083 #if defined(TARGET_PPC64H)
2087 /* XXX: this is false */
2088 /* Get rS/rD and rA from faulting opcode */
2089 env->spr[SPR_DSISR] |= (ldl_code((env->nip - 4)) & 0x03FF0000) >> 16;
2091 case POWERPC_EXCP_PROGRAM: /* Program exception */
2092 switch (env->error_code & ~0xF) {
2093 case POWERPC_EXCP_FP:
2094 if ((msr_fe0 == 0 && msr_fe1 == 0) || msr_fp == 0) {
2095 #if defined (DEBUG_EXCEPTIONS)
2096 if (loglevel != 0) {
2097 fprintf(logfile, "Ignore floating point exception\n");
2103 #if defined(TARGET_PPC64H)
2109 env->fpscr[7] |= 0x8;
2110 /* Finally, update FEX */
2111 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
2112 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
2113 env->fpscr[7] |= 0x4;
2114 if (msr_fe0 != msr_fe1) {
2119 case POWERPC_EXCP_INVAL:
2120 #if defined (DEBUG_EXCEPTIONS)
2121 if (loglevel != 0) {
2122 fprintf(logfile, "Invalid instruction at 0x" ADDRX "\n",
2127 #if defined(TARGET_PPC64H)
2133 case POWERPC_EXCP_PRIV:
2135 #if defined(TARGET_PPC64H)
2141 case POWERPC_EXCP_TRAP:
2143 #if defined(TARGET_PPC64H)
2150 /* Should never occur */
2151 cpu_abort(env, "Invalid program exception %d. Aborting\n",
2156 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
2158 #if defined(TARGET_PPC64H)
2163 case POWERPC_EXCP_SYSCALL: /* System call exception */
2164 /* NOTE: this is a temporary hack to support graphics OSI
2165 calls from the MOL driver */
2166 /* XXX: To be removed */
2167 if (env->gpr[3] == 0x113724fa && env->gpr[4] == 0x77810f9b &&
2169 if (env->osi_call(env) != 0)
2172 if (loglevel & CPU_LOG_INT) {
2176 #if defined(TARGET_PPC64H)
2177 if (lev == 1 || (lpes0 == 0 && lpes1 == 0))
2181 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
2184 case POWERPC_EXCP_DECR: /* Decrementer exception */
2186 #if defined(TARGET_PPC64H)
2191 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
2193 #if defined (DEBUG_EXCEPTIONS)
2195 fprintf(logfile, "FIT exception\n");
2197 msr_ri = 0; /* XXX: check this */
2199 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
2200 #if defined (DEBUG_EXCEPTIONS)
2202 fprintf(logfile, "WDT exception\n");
2204 switch (excp_model) {
2205 case POWERPC_EXCP_BOOKE:
2206 srr0 = SPR_BOOKE_CSRR0;
2207 srr1 = SPR_BOOKE_CSRR1;
2212 msr_ri = 0; /* XXX: check this */
2214 case POWERPC_EXCP_DTLB: /* Data TLB error */
2215 msr_ri = 0; /* XXX: check this */
2217 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
2218 msr_ri = 0; /* XXX: check this */
2220 case POWERPC_EXCP_DEBUG: /* Debug interrupt */
2221 switch (excp_model) {
2222 case POWERPC_EXCP_BOOKE:
2223 srr0 = SPR_BOOKE_DSRR0;
2224 srr1 = SPR_BOOKE_DSRR1;
2225 asrr0 = SPR_BOOKE_CSRR0;
2226 asrr1 = SPR_BOOKE_CSRR1;
2232 cpu_abort(env, "Debug exception is not implemented yet !\n");
2234 #if defined(TARGET_PPCEMB)
2235 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavailable */
2236 msr_ri = 0; /* XXX: check this */
2238 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data interrupt */
2240 cpu_abort(env, "Embedded floating point data exception "
2241 "is not implemented yet !\n");
2243 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round interrupt */
2245 cpu_abort(env, "Embedded floating point round exception "
2246 "is not implemented yet !\n");
2248 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor interrupt */
2252 "Performance counter exception is not implemented yet !\n");
2254 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
2257 "Embedded doorbell interrupt is not implemented yet !\n");
2259 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
2260 switch (excp_model) {
2261 case POWERPC_EXCP_BOOKE:
2262 srr0 = SPR_BOOKE_CSRR0;
2263 srr1 = SPR_BOOKE_CSRR1;
2269 cpu_abort(env, "Embedded doorbell critical interrupt "
2270 "is not implemented yet !\n");
2272 #endif /* defined(TARGET_PPCEMB) */
2273 case POWERPC_EXCP_RESET: /* System reset exception */
2275 #if defined(TARGET_PPC64H)
2280 #if defined(TARGET_PPC64)
2281 case POWERPC_EXCP_DSEG: /* Data segment exception */
2283 #if defined(TARGET_PPC64H)
2288 cpu_abort(env, "Data segment exception is not implemented yet !\n");
2290 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
2292 #if defined(TARGET_PPC64H)
2298 "Instruction segment exception is not implemented yet !\n");
2300 #endif /* defined(TARGET_PPC64) */
2301 #if defined(TARGET_PPC64H)
2302 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
2308 case POWERPC_EXCP_TRACE: /* Trace exception */
2310 #if defined(TARGET_PPC64H)
2315 #if defined(TARGET_PPC64H)
2316 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
2321 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage exception */
2326 cpu_abort(env, "Hypervisor instruction storage exception "
2327 "is not implemented yet !\n");
2329 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
2334 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment exception */
2339 #endif /* defined(TARGET_PPC64H) */
2340 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
2342 #if defined(TARGET_PPC64H)
2347 case POWERPC_EXCP_PIT: /* Programmable interval timer interrupt */
2348 #if defined (DEBUG_EXCEPTIONS)
2350 fprintf(logfile, "PIT exception\n");
2352 msr_ri = 0; /* XXX: check this */
2354 case POWERPC_EXCP_IO: /* IO error exception */
2356 cpu_abort(env, "601 IO error exception is not implemented yet !\n");
2358 case POWERPC_EXCP_RUNM: /* Run mode exception */
2360 cpu_abort(env, "601 run mode exception is not implemented yet !\n");
2362 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
2364 cpu_abort(env, "602 emulation trap exception "
2365 "is not implemented yet !\n");
2367 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
2368 msr_ri = 0; /* XXX: check this */
2369 #if defined(TARGET_PPC64H) /* XXX: check this */
2373 switch (excp_model) {
2374 case POWERPC_EXCP_602:
2375 case POWERPC_EXCP_603:
2376 case POWERPC_EXCP_603E:
2377 case POWERPC_EXCP_G2:
2379 case POWERPC_EXCP_7x5:
2381 case POWERPC_EXCP_74xx:
2384 cpu_abort(env, "Invalid instruction TLB miss exception\n");
2388 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
2389 msr_ri = 0; /* XXX: check this */
2390 #if defined(TARGET_PPC64H) /* XXX: check this */
2394 switch (excp_model) {
2395 case POWERPC_EXCP_602:
2396 case POWERPC_EXCP_603:
2397 case POWERPC_EXCP_603E:
2398 case POWERPC_EXCP_G2:
2400 case POWERPC_EXCP_7x5:
2402 case POWERPC_EXCP_74xx:
2405 cpu_abort(env, "Invalid data load TLB miss exception\n");
2409 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
2410 msr_ri = 0; /* XXX: check this */
2411 #if defined(TARGET_PPC64H) /* XXX: check this */
2415 switch (excp_model) {
2416 case POWERPC_EXCP_602:
2417 case POWERPC_EXCP_603:
2418 case POWERPC_EXCP_603E:
2419 case POWERPC_EXCP_G2:
2421 /* Swap temporary saved registers with GPRs */
2425 case POWERPC_EXCP_7x5:
2427 #if defined (DEBUG_SOFTWARE_TLB)
2428 if (loglevel != 0) {
2429 const unsigned char *es;
2430 target_ulong *miss, *cmp;
2432 if (excp == POWERPC_EXCP_IFTLB) {
2435 miss = &env->spr[SPR_IMISS];
2436 cmp = &env->spr[SPR_ICMP];
2438 if (excp == POWERPC_EXCP_DLTLB)
2443 miss = &env->spr[SPR_DMISS];
2444 cmp = &env->spr[SPR_DCMP];
2446 fprintf(logfile, "6xx %sTLB miss: %cM " ADDRX " %cC " ADDRX
2447 " H1 " ADDRX " H2 " ADDRX " %08x\n",
2448 es, en, *miss, en, *cmp,
2449 env->spr[SPR_HASH1], env->spr[SPR_HASH2],
2453 msr |= env->crf[0] << 28;
2454 msr |= env->error_code; /* key, D/I, S/L bits */
2455 /* Set way using a LRU mechanism */
2456 msr |= ((env->last_way + 1) & (env->nb_ways - 1)) << 17;
2458 case POWERPC_EXCP_74xx:
2460 #if defined (DEBUG_SOFTWARE_TLB)
2461 if (loglevel != 0) {
2462 const unsigned char *es;
2463 target_ulong *miss, *cmp;
2465 if (excp == POWERPC_EXCP_IFTLB) {
2468 miss = &env->spr[SPR_IMISS];
2469 cmp = &env->spr[SPR_ICMP];
2471 if (excp == POWERPC_EXCP_DLTLB)
2476 miss = &env->spr[SPR_TLBMISS];
2477 cmp = &env->spr[SPR_PTEHI];
2479 fprintf(logfile, "74xx %sTLB miss: %cM " ADDRX " %cC " ADDRX
2481 es, en, *miss, en, *cmp, env->error_code);
2484 msr |= env->error_code; /* key bit */
2487 cpu_abort(env, "Invalid data store TLB miss exception\n");
2491 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
2493 cpu_abort(env, "Floating point assist exception "
2494 "is not implemented yet !\n");
2496 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
2498 cpu_abort(env, "IABR exception is not implemented yet !\n");
2500 case POWERPC_EXCP_SMI: /* System management interrupt */
2502 cpu_abort(env, "SMI exception is not implemented yet !\n");
2504 case POWERPC_EXCP_THERM: /* Thermal interrupt */
2506 cpu_abort(env, "Thermal management exception "
2507 "is not implemented yet !\n");
2509 case POWERPC_EXCP_PERFM: /* Embedded performance monitor interrupt */
2511 #if defined(TARGET_PPC64H)
2517 "Performance counter exception is not implemented yet !\n");
2519 case POWERPC_EXCP_VPUA: /* Vector assist exception */
2521 cpu_abort(env, "VPU assist exception is not implemented yet !\n");
2523 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
2526 "970 soft-patch exception is not implemented yet !\n");
2528 case POWERPC_EXCP_MAINT: /* Maintenance exception */
2531 "970 maintenance exception is not implemented yet !\n");
2535 cpu_abort(env, "Invalid PowerPC exception %d. Aborting\n", excp);
2538 /* save current instruction location */
2539 env->spr[srr0] = env->nip - 4;
2542 /* save next instruction location */
2543 env->spr[srr0] = env->nip;
2547 env->spr[srr1] = msr;
2548 /* If any alternate SRR register are defined, duplicate saved values */
2550 env->spr[asrr0] = env->spr[srr0];
2552 env->spr[asrr1] = env->spr[srr1];
2553 /* If we disactivated any translation, flush TLBs */
2554 if (msr_ir || msr_dr)
2556 /* reload MSR with correct bits */
2566 #if 0 /* Fix this: not on all targets */
2570 do_compute_hflags(env);
2571 /* Jump to handler */
2572 vector = env->excp_vectors[excp];
2573 if (vector == (target_ulong)-1) {
2574 cpu_abort(env, "Raised an exception without defined vector %d\n",
2577 vector |= env->excp_prefix;
2578 #if defined(TARGET_PPC64)
2579 if (excp_model == POWERPC_EXCP_BOOKE) {
2582 vector = (uint32_t)vector;
2586 vector = (uint32_t)vector;
2590 /* Reset exception state */
2591 env->exception_index = POWERPC_EXCP_NONE;
2592 env->error_code = 0;
2595 void do_interrupt (CPUState *env)
2597 powerpc_excp(env, env->excp_model, env->exception_index);
2600 void ppc_hw_interrupt (CPUPPCState *env)
2603 if (loglevel & CPU_LOG_INT) {
2604 fprintf(logfile, "%s: %p pending %08x req %08x me %d ee %d\n",
2605 __func__, env, env->pending_interrupts,
2606 env->interrupt_request, msr_me, msr_ee);
2609 /* External reset */
2610 if (env->pending_interrupts & (1 << PPC_INTERRUPT_RESET)) {
2611 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_RESET);
2612 powerpc_excp(env, env->excp_model, POWERPC_EXCP_RESET);
2615 /* Machine check exception */
2616 if (env->pending_interrupts & (1 << PPC_INTERRUPT_MCK)) {
2617 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_MCK);
2618 powerpc_excp(env, env->excp_model, POWERPC_EXCP_MCHECK);
2622 /* External debug exception */
2623 if (env->pending_interrupts & (1 << PPC_INTERRUPT_DEBUG)) {
2624 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DEBUG);
2625 powerpc_excp(env, env->excp_model, POWERPC_EXCP_DEBUG);
2629 #if defined(TARGET_PPC64H)
2630 if ((msr_ee != 0 || msr_hv == 0 || msr_pr == 1) & hdice != 0) {
2631 /* Hypervisor decrementer exception */
2632 if (env->pending_interrupts & (1 << PPC_INTERRUPT_HDECR)) {
2633 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_HDECR);
2634 powerpc_excp(env, env->excp_model, POWERPC_EXCP_HDECR);
2640 /* External critical interrupt */
2641 if (env->pending_interrupts & (1 << PPC_INTERRUPT_CEXT)) {
2642 /* Taking a critical external interrupt does not clear the external
2643 * critical interrupt status
2646 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CEXT);
2648 powerpc_excp(env, env->excp_model, POWERPC_EXCP_CRITICAL);
2653 /* Watchdog timer on embedded PowerPC */
2654 if (env->pending_interrupts & (1 << PPC_INTERRUPT_WDT)) {
2655 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_WDT);
2656 powerpc_excp(env, env->excp_model, POWERPC_EXCP_WDT);
2659 #if defined(TARGET_PPCEMB)
2660 if (env->pending_interrupts & (1 << PPC_INTERRUPT_CDOORBELL)) {
2661 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CDOORBELL);
2662 powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORCI);
2666 #if defined(TARGET_PPCEMB)
2667 /* External interrupt */
2668 if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
2669 /* Taking an external interrupt does not clear the external
2673 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
2675 powerpc_excp(env, env->excp_model, POWERPC_EXCP_EXTERNAL);
2679 /* Fixed interval timer on embedded PowerPC */
2680 if (env->pending_interrupts & (1 << PPC_INTERRUPT_FIT)) {
2681 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_FIT);
2682 powerpc_excp(env, env->excp_model, POWERPC_EXCP_FIT);
2685 /* Programmable interval timer on embedded PowerPC */
2686 if (env->pending_interrupts & (1 << PPC_INTERRUPT_PIT)) {
2687 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PIT);
2688 powerpc_excp(env, env->excp_model, POWERPC_EXCP_PIT);
2691 /* Decrementer exception */
2692 if (env->pending_interrupts & (1 << PPC_INTERRUPT_DECR)) {
2693 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DECR);
2694 powerpc_excp(env, env->excp_model, POWERPC_EXCP_DECR);
2697 #if !defined(TARGET_PPCEMB)
2698 /* External interrupt */
2699 if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
2700 /* Taking an external interrupt does not clear the external
2704 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
2706 powerpc_excp(env, env->excp_model, POWERPC_EXCP_EXTERNAL);
2710 #if defined(TARGET_PPCEMB)
2711 if (env->pending_interrupts & (1 << PPC_INTERRUPT_DOORBELL)) {
2712 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DOORBELL);
2713 powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORI);
2717 if (env->pending_interrupts & (1 << PPC_INTERRUPT_PERFM)) {
2718 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PERFM);
2719 powerpc_excp(env, env->excp_model, POWERPC_EXCP_PERFM);
2722 /* Thermal interrupt */
2723 if (env->pending_interrupts & (1 << PPC_INTERRUPT_THERM)) {
2724 env->pending_interrupts &= ~(1 << PPC_INTERRUPT_THERM);
2725 powerpc_excp(env, env->excp_model, POWERPC_EXCP_THERM);
2730 #endif /* !CONFIG_USER_ONLY */
2732 void cpu_dump_EA (target_ulong EA)
2742 fprintf(f, "Memory access at address " ADDRX "\n", EA);
2745 void cpu_dump_rfi (target_ulong RA, target_ulong msr)
2755 fprintf(f, "Return from exception at " ADDRX " with flags " ADDRX "\n",
2759 void cpu_ppc_reset (void *opaque)
2765 /* XXX: some of those flags initialisation values could depend
2766 * on the actual PowerPC implementation
2768 for (i = 0; i < 63; i++)
2770 #if defined(TARGET_PPC64)
2771 msr_hv = 0; /* Should be 1... */
2773 msr_ap = 0; /* TO BE CHECKED */
2774 msr_sa = 0; /* TO BE CHECKED */
2775 msr_ip = 0; /* TO BE CHECKED */
2776 #if defined (DO_SINGLE_STEP) && 0
2777 /* Single step trace mode */
2781 #if defined(CONFIG_USER_ONLY)
2782 msr_fp = 1; /* Allow floating point exceptions */
2785 env->nip = 0xFFFFFFFC;
2786 ppc_tlb_invalidate_all(env);
2788 do_compute_hflags(env);
2790 /* Be sure no exception or interrupt is pending */
2791 env->pending_interrupts = 0;
2792 env->exception_index = POWERPC_EXCP_NONE;
2793 env->error_code = 0;
2794 /* Flush all TLBs */
2798 CPUPPCState *cpu_ppc_init (void)
2802 env = qemu_mallocz(sizeof(CPUPPCState));
2811 void cpu_ppc_close (CPUPPCState *env)
2813 /* Should also remove all opcode tables... */