diff options
Diffstat (limited to 'target/m68k/helper.c')
| -rw-r--r-- | target/m68k/helper.c | 84 |
1 files changed, 67 insertions, 17 deletions
diff --git a/target/m68k/helper.c b/target/m68k/helper.c index 9fc9e646ff..6db93bdd81 100644 --- a/target/m68k/helper.c +++ b/target/m68k/helper.c @@ -390,6 +390,7 @@ static void dump_address_map(CPUM68KState *env, uint32_t root_pointer) int last_attr = -1, attr = -1; M68kCPU *cpu = m68k_env_get_cpu(env); CPUState *cs = CPU(cpu); + MemTxResult txres; if (env->mmu.tcr & M68K_TCR_PAGE_8K) { /* 8k page */ @@ -403,22 +404,29 @@ static void dump_address_map(CPUM68KState *env, uint32_t root_pointer) tib_mask = M68K_4K_PAGE_MASK; } for (i = 0; i < M68K_ROOT_POINTER_ENTRIES; i++) { - tia = ldl_phys(cs->as, M68K_POINTER_BASE(root_pointer) + i * 4); - if (!M68K_UDT_VALID(tia)) { + tia = address_space_ldl(cs->as, M68K_POINTER_BASE(root_pointer) + i * 4, + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK || !M68K_UDT_VALID(tia)) { continue; } for (j = 0; j < M68K_ROOT_POINTER_ENTRIES; j++) { - tib = ldl_phys(cs->as, M68K_POINTER_BASE(tia) + j * 4); - if (!M68K_UDT_VALID(tib)) { + tib = address_space_ldl(cs->as, M68K_POINTER_BASE(tia) + j * 4, + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK || !M68K_UDT_VALID(tib)) { continue; } for (k = 0; k < tic_size; k++) { - tic = ldl_phys(cs->as, (tib & tib_mask) + k * 4); - if (!M68K_PDT_VALID(tic)) { + tic = address_space_ldl(cs->as, (tib & tib_mask) + k * 4, + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK || !M68K_PDT_VALID(tic)) { continue; } if (M68K_PDT_INDIRECT(tic)) { - tic = ldl_phys(cs->as, M68K_INDIRECT_POINTER(tic)); + tic = address_space_ldl(cs->as, M68K_INDIRECT_POINTER(tic), + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + continue; + } } last_logical = logical; @@ -630,6 +638,7 @@ static int get_physical_address(CPUM68KState *env, hwaddr *physical, bool debug = access_type & ACCESS_DEBUG; int page_bits; int i; + MemTxResult txres; /* Transparent Translation (physical = logical) */ for (i = 0; i < M68K_MAX_TTR; i++) { @@ -659,12 +668,19 @@ static int get_physical_address(CPUM68KState *env, hwaddr *physical, /* Root Index */ entry = M68K_POINTER_BASE(next) | M68K_ROOT_INDEX(address); - next = ldl_phys(cs->as, entry); + next = address_space_ldl(cs->as, entry, MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + goto txfail; + } if (!M68K_UDT_VALID(next)) { return -1; } if (!(next & M68K_DESC_USED) && !debug) { - stl_phys(cs->as, entry, next | M68K_DESC_USED); + address_space_stl(cs->as, entry, next | M68K_DESC_USED, + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + goto txfail; + } } if (next & M68K_DESC_WRITEPROT) { if (access_type & ACCESS_PTEST) { @@ -679,12 +695,19 @@ static int get_physical_address(CPUM68KState *env, hwaddr *physical, /* Pointer Index */ entry = M68K_POINTER_BASE(next) | M68K_POINTER_INDEX(address); - next = ldl_phys(cs->as, entry); + next = address_space_ldl(cs->as, entry, MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + goto txfail; + } if (!M68K_UDT_VALID(next)) { return -1; } if (!(next & M68K_DESC_USED) && !debug) { - stl_phys(cs->as, entry, next | M68K_DESC_USED); + address_space_stl(cs->as, entry, next | M68K_DESC_USED, + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + goto txfail; + } } if (next & M68K_DESC_WRITEPROT) { if (access_type & ACCESS_PTEST) { @@ -703,27 +726,46 @@ static int get_physical_address(CPUM68KState *env, hwaddr *physical, entry = M68K_4K_PAGE_BASE(next) | M68K_4K_PAGE_INDEX(address); } - next = ldl_phys(cs->as, entry); + next = address_space_ldl(cs->as, entry, MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + goto txfail; + } if (!M68K_PDT_VALID(next)) { return -1; } if (M68K_PDT_INDIRECT(next)) { - next = ldl_phys(cs->as, M68K_INDIRECT_POINTER(next)); + next = address_space_ldl(cs->as, M68K_INDIRECT_POINTER(next), + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + goto txfail; + } } if (access_type & ACCESS_STORE) { if (next & M68K_DESC_WRITEPROT) { if (!(next & M68K_DESC_USED) && !debug) { - stl_phys(cs->as, entry, next | M68K_DESC_USED); + address_space_stl(cs->as, entry, next | M68K_DESC_USED, + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + goto txfail; + } } } else if ((next & (M68K_DESC_MODIFIED | M68K_DESC_USED)) != (M68K_DESC_MODIFIED | M68K_DESC_USED) && !debug) { - stl_phys(cs->as, entry, - next | (M68K_DESC_MODIFIED | M68K_DESC_USED)); + address_space_stl(cs->as, entry, + next | (M68K_DESC_MODIFIED | M68K_DESC_USED), + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + goto txfail; + } } } else { if (!(next & M68K_DESC_USED) && !debug) { - stl_phys(cs->as, entry, next | M68K_DESC_USED); + address_space_stl(cs->as, entry, next | M68K_DESC_USED, + MEMTXATTRS_UNSPECIFIED, &txres); + if (txres != MEMTX_OK) { + goto txfail; + } } } @@ -755,6 +797,14 @@ static int get_physical_address(CPUM68KState *env, hwaddr *physical, } return 0; + +txfail: + /* + * A page table load/store failed. TODO: we should really raise a + * suitable guest fault here if this is not a debug access. + * For now just return that the translation failed. + */ + return -1; } hwaddr m68k_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) |