/* * Sparc MMU helpers * * Copyright (c) 2003-2005 Fabrice Bellard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see <http://www.gnu.org/licenses/>. */ #include "cpu.h" #include "trace.h" #include "exec-memory.h" /* Sparc MMU emulation */ #if defined(CONFIG_USER_ONLY) int cpu_sparc_handle_mmu_fault(CPUState *env1, target_ulong address, int rw, int mmu_idx) { if (rw & 2) { env1->exception_index = TT_TFAULT; } else { env1->exception_index = TT_DFAULT; } return 1; } #else #ifndef TARGET_SPARC64 /* * Sparc V8 Reference MMU (SRMMU) */ static const int access_table[8][8] = { { 0, 0, 0, 0, 8, 0, 12, 12 }, { 0, 0, 0, 0, 8, 0, 0, 0 }, { 8, 8, 0, 0, 0, 8, 12, 12 }, { 8, 8, 0, 0, 0, 8, 0, 0 }, { 8, 0, 8, 0, 8, 8, 12, 12 }, { 8, 0, 8, 0, 8, 0, 8, 0 }, { 8, 8, 8, 0, 8, 8, 12, 12 }, { 8, 8, 8, 0, 8, 8, 8, 0 } }; static const int perm_table[2][8] = { { PAGE_READ, PAGE_READ | PAGE_WRITE, PAGE_READ | PAGE_EXEC, PAGE_READ | PAGE_WRITE | PAGE_EXEC, PAGE_EXEC, PAGE_READ | PAGE_WRITE, PAGE_READ | PAGE_EXEC, PAGE_READ | PAGE_WRITE | PAGE_EXEC }, { PAGE_READ, PAGE_READ | PAGE_WRITE, PAGE_READ | PAGE_EXEC, PAGE_READ | PAGE_WRITE | PAGE_EXEC, PAGE_EXEC, PAGE_READ, 0, 0, } }; static int get_physical_address(CPUState *env, target_phys_addr_t *physical, int *prot, int *access_index, target_ulong address, int rw, int mmu_idx, target_ulong *page_size) { int access_perms = 0; target_phys_addr_t pde_ptr; uint32_t pde; int error_code = 0, is_dirty, is_user; unsigned long page_offset; is_user = mmu_idx == MMU_USER_IDX; if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */ *page_size = TARGET_PAGE_SIZE; /* Boot mode: instruction fetches are taken from PROM */ if (rw == 2 && (env->mmuregs[0] & env->def->mmu_bm)) { *physical = env->prom_addr | (address & 0x7ffffULL); *prot = PAGE_READ | PAGE_EXEC; return 0; } *physical = address; *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; return 0; } *access_index = ((rw & 1) << 2) | (rw & 2) | (is_user ? 0 : 1); *physical = 0xffffffffffff0000ULL; /* SPARC reference MMU table walk: Context table->L1->L2->PTE */ /* Context base + context number */ pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2); pde = ldl_phys(pde_ptr); /* Ctx pde */ switch (pde & PTE_ENTRYTYPE_MASK) { default: case 0: /* Invalid */ return 1 << 2; case 2: /* L0 PTE, maybe should not happen? */ case 3: /* Reserved */ return 4 << 2; case 1: /* L0 PDE */ pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4); pde = ldl_phys(pde_ptr); switch (pde & PTE_ENTRYTYPE_MASK) { default: case 0: /* Invalid */ return (1 << 8) | (1 << 2); case 3: /* Reserved */ return (1 << 8) | (4 << 2); case 1: /* L1 PDE */ pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4); pde = ldl_phys(pde_ptr); switch (pde & PTE_ENTRYTYPE_MASK) { default: case 0: /* Invalid */ return (2 << 8) | (1 << 2); case 3: /* Reserved */ return (2 << 8) | (4 << 2); case 1: /* L2 PDE */ pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4); pde = ldl_phys(pde_ptr); switch (pde & PTE_ENTRYTYPE_MASK) { default: case 0: /* Invalid */ return (3 << 8) | (1 << 2); case 1: /* PDE, should not happen */ case 3: /* Reserved */ return (3 << 8) | (4 << 2); case 2: /* L3 PTE */ page_offset = (address & TARGET_PAGE_MASK) & (TARGET_PAGE_SIZE - 1); } *page_size = TARGET_PAGE_SIZE; break; case 2: /* L2 PTE */ page_offset = address & 0x3ffff; *page_size = 0x40000; } break; case 2: /* L1 PTE */ page_offset = address & 0xffffff; *page_size = 0x1000000; } } /* check access */ access_perms = (pde & PTE_ACCESS_MASK) >> PTE_ACCESS_SHIFT; error_code = access_table[*access_index][access_perms]; if (error_code && !((env->mmuregs[0] & MMU_NF) && is_user)) { return error_code; } /* update page modified and dirty bits */ is_dirty = (rw & 1) && !(pde & PG_MODIFIED_MASK); if (!(pde & PG_ACCESSED_MASK) || is_dirty) { pde |= PG_ACCESSED_MASK; if (is_dirty) { pde |= PG_MODIFIED_MASK; } stl_phys_notdirty(pde_ptr, pde); } /* the page can be put in the TLB */ *prot = perm_table[is_user][access_perms]; if (!(pde & PG_MODIFIED_MASK)) { /* only set write access if already dirty... otherwise wait for dirty access */ *prot &= ~PAGE_WRITE; } /* Even if large ptes, we map only one 4KB page in the cache to avoid filling it too fast */ *physical = ((target_phys_addr_t)(pde & PTE_ADDR_MASK) << 4) + page_offset; return error_code; } /* Perform address translation */ int cpu_sparc_handle_mmu_fault(CPUState *env, target_ulong address, int rw, int mmu_idx) { target_phys_addr_t paddr; target_ulong vaddr; target_ulong page_size; int error_code = 0, prot, access_index; error_code = get_physical_address(env, &paddr, &prot, &access_index, address, rw, mmu_idx, &page_size); if (error_code == 0) { vaddr = address & TARGET_PAGE_MASK; paddr &= TARGET_PAGE_MASK; #ifdef DEBUG_MMU printf("Translate at " TARGET_FMT_lx " -> " TARGET_FMT_plx ", vaddr " TARGET_FMT_lx "\n", address, paddr, vaddr); #endif tlb_set_page(env, vaddr, paddr, prot, mmu_idx, page_size); return 0; } if (env->mmuregs[3]) { /* Fault status register */ env->mmuregs[3] = 1; /* overflow (not read before another fault) */ } env->mmuregs[3] |= (access_index << 5) | error_code | 2; env->mmuregs[4] = address; /* Fault address register */ if ((env->mmuregs[0] & MMU_NF) || env->psret == 0) { /* No fault mode: if a mapping is available, just override permissions. If no mapping is available, redirect accesses to neverland. Fake/overridden mappings will be flushed when switching to normal mode. */ vaddr = address & TARGET_PAGE_MASK; prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; tlb_set_page(env, vaddr, paddr, prot, mmu_idx, TARGET_PAGE_SIZE); return 0; } else { if (rw & 2) { env->exception_index = TT_TFAULT; } else { env->exception_index = TT_DFAULT; } return 1; } } target_ulong mmu_probe(CPUState *env, target_ulong address, int mmulev) { target_phys_addr_t pde_ptr; uint32_t pde; /* Context base + context number */ pde_ptr = (target_phys_addr_t)(env->mmuregs[1] << 4) + (env->mmuregs[2] << 2); pde = ldl_phys(pde_ptr); switch (pde & PTE_ENTRYTYPE_MASK) { default: case 0: /* Invalid */ case 2: /* PTE, maybe should not happen? */ case 3: /* Reserved */ return 0; case 1: /* L1 PDE */ if (mmulev == 3) { return pde; } pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4); pde = ldl_phys(pde_ptr); switch (pde & PTE_ENTRYTYPE_MASK) { default: case 0: /* Invalid */ case 3: /* Reserved */ return 0; case 2: /* L1 PTE */ return pde; case 1: /* L2 PDE */ if (mmulev == 2) { return pde; } pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4); pde = ldl_phys(pde_ptr); switch (pde & PTE_ENTRYTYPE_MASK) { default: case 0: /* Invalid */ case 3: /* Reserved */ return 0; case 2: /* L2 PTE */ return pde; case 1: /* L3 PDE */ if (mmulev == 1) { return pde; } pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4); pde = ldl_phys(pde_ptr); switch (pde & PTE_ENTRYTYPE_MASK) { default: case 0: /* Invalid */ case 1: /* PDE, should not happen */ case 3: /* Reserved */ return 0; case 2: /* L3 PTE */ return pde; } } } } return 0; } void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUState *env) { target_ulong va, va1, va2; unsigned int n, m, o; target_phys_addr_t pde_ptr, pa; uint32_t pde; pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2); pde = ldl_phys(pde_ptr); (*cpu_fprintf)(f, "Root ptr: " TARGET_FMT_plx ", ctx: %d\n", (target_phys_addr_t)env->mmuregs[1] << 4, env->mmuregs[2]); for (n = 0, va = 0; n < 256; n++, va += 16 * 1024 * 1024) { pde = mmu_probe(env, va, 2); if (pde) { pa = cpu_get_phys_page_debug(env, va); (*cpu_fprintf)(f, "VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_plx " PDE: " TARGET_FMT_lx "\n", va, pa, pde); for (m = 0, va1 = va; m < 64; m++, va1 += 256 * 1024) { pde = mmu_probe(env, va1, 1); if (pde) { pa = cpu_get_phys_page_debug(env, va1); (*cpu_fprintf)(f, " VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_plx " PDE: " TARGET_FMT_lx "\n", va1, pa, pde); for (o = 0, va2 = va1; o < 64; o++, va2 += 4 * 1024) { pde = mmu_probe(env, va2, 0); if (pde) { pa = cpu_get_phys_page_debug(env, va2); (*cpu_fprintf)(f, " VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_plx " PTE: " TARGET_FMT_lx "\n", va2, pa, pde); } } } } } } } /* Gdb expects all registers windows to be flushed in ram. This function handles * reads (and only reads) in stack frames as if windows were flushed. We assume * that the sparc ABI is followed. */ int target_memory_rw_debug(CPUState *env, target_ulong addr, uint8_t *buf, int len, int is_write) { int i; int len1; int cwp = env->cwp; if (!is_write) { for (i = 0; i < env->nwindows; i++) { int off; target_ulong fp = env->regbase[cwp * 16 + 22]; /* Assume fp == 0 means end of frame. */ if (fp == 0) { break; } cwp = cpu_cwp_inc(env, cwp + 1); /* Invalid window ? */ if (env->wim & (1 << cwp)) { break; } /* According to the ABI, the stack is growing downward. */ if (addr + len < fp) { break; } /* Not in this frame. */ if (addr > fp + 64) { continue; } /* Handle access before this window. */ if (addr < fp) { len1 = fp - addr; if (cpu_memory_rw_debug(env, addr, buf, len1, is_write) != 0) { return -1; } addr += len1; len -= len1; buf += len1; } /* Access byte per byte to registers. Not very efficient but speed * is not critical. */ off = addr - fp; len1 = 64 - off; if (len1 > len) { len1 = len; } for (; len1; len1--) { int reg = cwp * 16 + 8 + (off >> 2); union { uint32_t v; uint8_t c[4]; } u; u.v = cpu_to_be32(env->regbase[reg]); *buf++ = u.c[off & 3]; addr++; len--; off++; } if (len == 0) { return 0; } } } return cpu_memory_rw_debug(env, addr, buf, len, is_write); } #else /* !TARGET_SPARC64 */ /* 41 bit physical address space */ static inline target_phys_addr_t ultrasparc_truncate_physical(uint64_t x) { return x & 0x1ffffffffffULL; } /* * UltraSparc IIi I/DMMUs */ /* Returns true if TTE tag is valid and matches virtual address value in context requires virtual address mask value calculated from TTE entry size */ static inline int ultrasparc_tag_match(SparcTLBEntry *tlb, uint64_t address, uint64_t context, target_phys_addr_t *physical) { uint64_t mask; switch (TTE_PGSIZE(tlb->tte)) { default: case 0x0: /* 8k */ mask = 0xffffffffffffe000ULL; break; case 0x1: /* 64k */ mask = 0xffffffffffff0000ULL; break; case 0x2: /* 512k */ mask = 0xfffffffffff80000ULL; break; case 0x3: /* 4M */ mask = 0xffffffffffc00000ULL; break; } /* valid, context match, virtual address match? */ if (TTE_IS_VALID(tlb->tte) && (TTE_IS_GLOBAL(tlb->tte) || tlb_compare_context(tlb, context)) && compare_masked(address, tlb->tag, mask)) { /* decode physical address */ *physical = ((tlb->tte & mask) | (address & ~mask)) & 0x1ffffffe000ULL; return 1; } return 0; } static int get_physical_address_data(CPUState *env, target_phys_addr_t *physical, int *prot, target_ulong address, int rw, int mmu_idx) { unsigned int i; uint64_t context; uint64_t sfsr = 0; int is_user = (mmu_idx == MMU_USER_IDX || mmu_idx == MMU_USER_SECONDARY_IDX); if ((env->lsu & DMMU_E) == 0) { /* DMMU disabled */ *physical = ultrasparc_truncate_physical(address); *prot = PAGE_READ | PAGE_WRITE; return 0; } switch (mmu_idx) { case MMU_USER_IDX: case MMU_KERNEL_IDX: context = env->dmmu.mmu_primary_context & 0x1fff; sfsr |= SFSR_CT_PRIMARY; break; case MMU_USER_SECONDARY_IDX: case MMU_KERNEL_SECONDARY_IDX: context = env->dmmu.mmu_secondary_context & 0x1fff; sfsr |= SFSR_CT_SECONDARY; break; case MMU_NUCLEUS_IDX: sfsr |= SFSR_CT_NUCLEUS; /* FALLTHRU */ default: context = 0; break; } if (rw == 1) { sfsr |= SFSR_WRITE_BIT; } else if (rw == 4) { sfsr |= SFSR_NF_BIT; } for (i = 0; i < 64; i++) { /* ctx match, vaddr match, valid? */ if (ultrasparc_tag_match(&env->dtlb[i], address, context, physical)) { int do_fault = 0; /* access ok? */ /* multiple bits in SFSR.FT may be set on TT_DFAULT */ if (TTE_IS_PRIV(env->dtlb[i].tte) && is_user) { do_fault = 1; sfsr |= SFSR_FT_PRIV_BIT; /* privilege violation */ trace_mmu_helper_dfault(address, context, mmu_idx, env->tl); } if (rw == 4) { if (TTE_IS_SIDEEFFECT(env->dtlb[i].tte)) { do_fault = 1; sfsr |= SFSR_FT_NF_E_BIT; } } else { if (TTE_IS_NFO(env->dtlb[i].tte)) { do_fault = 1; sfsr |= SFSR_FT_NFO_BIT; } } if (do_fault) { /* faults above are reported with TT_DFAULT. */ env->exception_index = TT_DFAULT; } else if (!TTE_IS_W_OK(env->dtlb[i].tte) && (rw == 1)) { do_fault = 1; env->exception_index = TT_DPROT; trace_mmu_helper_dprot(address, context, mmu_idx, env->tl); } if (!do_fault) { *prot = PAGE_READ; if (TTE_IS_W_OK(env->dtlb[i].tte)) { *prot |= PAGE_WRITE; } TTE_SET_USED(env->dtlb[i].tte); return 0; } if (env->dmmu.sfsr & SFSR_VALID_BIT) { /* Fault status register */ sfsr |= SFSR_OW_BIT; /* overflow (not read before another fault) */ } if (env->pstate & PS_PRIV) { sfsr |= SFSR_PR_BIT; } /* FIXME: ASI field in SFSR must be set */ env->dmmu.sfsr = sfsr | SFSR_VALID_BIT; env->dmmu.sfar = address; /* Fault address register */ env->dmmu.tag_access = (address & ~0x1fffULL) | context; return 1; } } trace_mmu_helper_dmiss(address, context); /* * On MMU misses: * - UltraSPARC IIi: SFSR and SFAR unmodified * - JPS1: SFAR updated and some fields of SFSR updated */ env->dmmu.tag_access = (address & ~0x1fffULL) | context; env->exception_index = TT_DMISS; return 1; } static int get_physical_address_code(CPUState *env, target_phys_addr_t *physical, int *prot, target_ulong address, int mmu_idx) { unsigned int i; uint64_t context; int is_user = (mmu_idx == MMU_USER_IDX || mmu_idx == MMU_USER_SECONDARY_IDX); if ((env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0) { /* IMMU disabled */ *physical = ultrasparc_truncate_physical(address); *prot = PAGE_EXEC; return 0; } if (env->tl == 0) { /* PRIMARY context */ context = env->dmmu.mmu_primary_context & 0x1fff; } else { /* NUCLEUS context */ context = 0; } for (i = 0; i < 64; i++) { /* ctx match, vaddr match, valid? */ if (ultrasparc_tag_match(&env->itlb[i], address, context, physical)) { /* access ok? */ if (TTE_IS_PRIV(env->itlb[i].tte) && is_user) { /* Fault status register */ if (env->immu.sfsr & SFSR_VALID_BIT) { env->immu.sfsr = SFSR_OW_BIT; /* overflow (not read before another fault) */ } else { env->immu.sfsr = 0; } if (env->pstate & PS_PRIV) { env->immu.sfsr |= SFSR_PR_BIT; } if (env->tl > 0) { env->immu.sfsr |= SFSR_CT_NUCLEUS; } /* FIXME: ASI field in SFSR must be set */ env->immu.sfsr |= SFSR_FT_PRIV_BIT | SFSR_VALID_BIT; env->exception_index = TT_TFAULT; env->immu.tag_access = (address & ~0x1fffULL) | context; trace_mmu_helper_tfault(address, context); return 1; } *prot = PAGE_EXEC; TTE_SET_USED(env->itlb[i].tte); return 0; } } trace_mmu_helper_tmiss(address, context); /* Context is stored in DMMU (dmmuregs[1]) also for IMMU */ env->immu.tag_access = (address & ~0x1fffULL) | context; env->exception_index = TT_TMISS; return 1; } static int get_physical_address(CPUState *env, target_phys_addr_t *physical, int *prot, int *access_index, target_ulong address, int rw, int mmu_idx, target_ulong *page_size) { /* ??? We treat everything as a small page, then explicitly flush everything when an entry is evicted. */ *page_size = TARGET_PAGE_SIZE; /* safety net to catch wrong softmmu index use from dynamic code */ if (env->tl > 0 && mmu_idx != MMU_NUCLEUS_IDX) { if (rw == 2) { trace_mmu_helper_get_phys_addr_code(env->tl, mmu_idx, env->dmmu.mmu_primary_context, env->dmmu.mmu_secondary_context, address); } else { trace_mmu_helper_get_phys_addr_data(env->tl, mmu_idx, env->dmmu.mmu_primary_context, env->dmmu.mmu_secondary_context, address); } } if (rw == 2) { return get_physical_address_code(env, physical, prot, address, mmu_idx); } else { return get_physical_address_data(env, physical, prot, address, rw, mmu_idx); } } /* Perform address translation */ int cpu_sparc_handle_mmu_fault(CPUState *env, target_ulong address, int rw, int mmu_idx) { target_ulong virt_addr, vaddr; target_phys_addr_t paddr; target_ulong page_size; int error_code = 0, prot, access_index; error_code = get_physical_address(env, &paddr, &prot, &access_index, address, rw, mmu_idx, &page_size); if (error_code == 0) { virt_addr = address & TARGET_PAGE_MASK; vaddr = virt_addr + ((address & TARGET_PAGE_MASK) & (TARGET_PAGE_SIZE - 1)); trace_mmu_helper_mmu_fault(address, paddr, mmu_idx, env->tl, env->dmmu.mmu_primary_context, env->dmmu.mmu_secondary_context); tlb_set_page(env, vaddr, paddr, prot, mmu_idx, page_size); return 0; } /* XXX */ return 1; } void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUState *env) { unsigned int i; const char *mask; (*cpu_fprintf)(f, "MMU contexts: Primary: %" PRId64 ", Secondary: %" PRId64 "\n", env->dmmu.mmu_primary_context, env->dmmu.mmu_secondary_context); if ((env->lsu & DMMU_E) == 0) { (*cpu_fprintf)(f, "DMMU disabled\n"); } else { (*cpu_fprintf)(f, "DMMU dump\n"); for (i = 0; i < 64; i++) { switch (TTE_PGSIZE(env->dtlb[i].tte)) { default: case 0x0: mask = " 8k"; break; case 0x1: mask = " 64k"; break; case 0x2: mask = "512k"; break; case 0x3: mask = " 4M"; break; } if (TTE_IS_VALID(env->dtlb[i].tte)) { (*cpu_fprintf)(f, "[%02u] VA: %" PRIx64 ", PA: %llx" ", %s, %s, %s, %s, ctx %" PRId64 " %s\n", i, env->dtlb[i].tag & (uint64_t)~0x1fffULL, TTE_PA(env->dtlb[i].tte), mask, TTE_IS_PRIV(env->dtlb[i].tte) ? "priv" : "user", TTE_IS_W_OK(env->dtlb[i].tte) ? "RW" : "RO", TTE_IS_LOCKED(env->dtlb[i].tte) ? "locked" : "unlocked", env->dtlb[i].tag & (uint64_t)0x1fffULL, TTE_IS_GLOBAL(env->dtlb[i].tte) ? "global" : "local"); } } } if ((env->lsu & IMMU_E) == 0) { (*cpu_fprintf)(f, "IMMU disabled\n"); } else { (*cpu_fprintf)(f, "IMMU dump\n"); for (i = 0; i < 64; i++) { switch (TTE_PGSIZE(env->itlb[i].tte)) { default: case 0x0: mask = " 8k"; break; case 0x1: mask = " 64k"; break; case 0x2: mask = "512k"; break; case 0x3: mask = " 4M"; break; } if (TTE_IS_VALID(env->itlb[i].tte)) { (*cpu_fprintf)(f, "[%02u] VA: %" PRIx64 ", PA: %llx" ", %s, %s, %s, ctx %" PRId64 " %s\n", i, env->itlb[i].tag & (uint64_t)~0x1fffULL, TTE_PA(env->itlb[i].tte), mask, TTE_IS_PRIV(env->itlb[i].tte) ? "priv" : "user", TTE_IS_LOCKED(env->itlb[i].tte) ? "locked" : "unlocked", env->itlb[i].tag & (uint64_t)0x1fffULL, TTE_IS_GLOBAL(env->itlb[i].tte) ? "global" : "local"); } } } } #endif /* TARGET_SPARC64 */ static int cpu_sparc_get_phys_page(CPUState *env, target_phys_addr_t *phys, target_ulong addr, int rw, int mmu_idx) { target_ulong page_size; int prot, access_index; return get_physical_address(env, phys, &prot, &access_index, addr, rw, mmu_idx, &page_size); } #if defined(TARGET_SPARC64) target_phys_addr_t cpu_get_phys_page_nofault(CPUState *env, target_ulong addr, int mmu_idx) { target_phys_addr_t phys_addr; if (cpu_sparc_get_phys_page(env, &phys_addr, addr, 4, mmu_idx) != 0) { return -1; } return phys_addr; } #endif target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr) { target_phys_addr_t phys_addr; int mmu_idx = cpu_mmu_index(env); MemoryRegionSection section; if (cpu_sparc_get_phys_page(env, &phys_addr, addr, 2, mmu_idx) != 0) { if (cpu_sparc_get_phys_page(env, &phys_addr, addr, 0, mmu_idx) != 0) { return -1; } } section = memory_region_find(get_system_memory(), phys_addr, 1); if (!section.size) { return -1; } return phys_addr; } #endif