diff options
Diffstat (limited to 'target/sparc/mmu_helper.c')
| -rw-r--r-- | target/sparc/mmu_helper.c | 57 |
1 files changed, 46 insertions, 11 deletions
diff --git a/target/sparc/mmu_helper.c b/target/sparc/mmu_helper.c index 77dc86ac5c..afbfba7b7e 100644 --- a/target/sparc/mmu_helper.c +++ b/target/sparc/mmu_helper.c @@ -98,6 +98,7 @@ static int get_physical_address(CPUSPARCState *env, hwaddr *physical, int error_code = 0, is_dirty, is_user; unsigned long page_offset; CPUState *cs = env_cpu(env); + MemTxResult result; is_user = mmu_idx == MMU_USER_IDX; @@ -120,7 +121,10 @@ static int get_physical_address(CPUSPARCState *env, hwaddr *physical, /* 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(cs->as, pde_ptr); + pde = address_space_ldl(cs->as, pde_ptr, MEMTXATTRS_UNSPECIFIED, &result); + if (result != MEMTX_OK) { + return 4 << 2; /* Translation fault, L = 0 */ + } /* Ctx pde */ switch (pde & PTE_ENTRYTYPE_MASK) { @@ -132,7 +136,11 @@ static int get_physical_address(CPUSPARCState *env, hwaddr *physical, return 4 << 2; case 1: /* L0 PDE */ pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4); - pde = ldl_phys(cs->as, pde_ptr); + pde = address_space_ldl(cs->as, pde_ptr, + MEMTXATTRS_UNSPECIFIED, &result); + if (result != MEMTX_OK) { + return (1 << 8) | (4 << 2); /* Translation fault, L = 1 */ + } switch (pde & PTE_ENTRYTYPE_MASK) { default: @@ -142,7 +150,11 @@ static int get_physical_address(CPUSPARCState *env, hwaddr *physical, return (1 << 8) | (4 << 2); case 1: /* L1 PDE */ pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4); - pde = ldl_phys(cs->as, pde_ptr); + pde = address_space_ldl(cs->as, pde_ptr, + MEMTXATTRS_UNSPECIFIED, &result); + if (result != MEMTX_OK) { + return (2 << 8) | (4 << 2); /* Translation fault, L = 2 */ + } switch (pde & PTE_ENTRYTYPE_MASK) { default: @@ -152,7 +164,11 @@ static int get_physical_address(CPUSPARCState *env, hwaddr *physical, return (2 << 8) | (4 << 2); case 1: /* L2 PDE */ pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4); - pde = ldl_phys(cs->as, pde_ptr); + pde = address_space_ldl(cs->as, pde_ptr, + MEMTXATTRS_UNSPECIFIED, &result); + if (result != MEMTX_OK) { + return (3 << 8) | (4 << 2); /* Translation fault, L = 3 */ + } switch (pde & PTE_ENTRYTYPE_MASK) { default: @@ -272,11 +288,20 @@ target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev) CPUState *cs = env_cpu(env); hwaddr pde_ptr; uint32_t pde; + MemTxResult result; + + /* + * TODO: MMU probe operations are supposed to set the fault + * status registers, but we don't do this. + */ /* Context base + context number */ pde_ptr = (hwaddr)(env->mmuregs[1] << 4) + (env->mmuregs[2] << 2); - pde = ldl_phys(cs->as, pde_ptr); + pde = address_space_ldl(cs->as, pde_ptr, MEMTXATTRS_UNSPECIFIED, &result); + if (result != MEMTX_OK) { + return 0; + } switch (pde & PTE_ENTRYTYPE_MASK) { default: @@ -289,7 +314,11 @@ target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev) return pde; } pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4); - pde = ldl_phys(cs->as, pde_ptr); + pde = address_space_ldl(cs->as, pde_ptr, + MEMTXATTRS_UNSPECIFIED, &result); + if (result != MEMTX_OK) { + return 0; + } switch (pde & PTE_ENTRYTYPE_MASK) { default: @@ -303,7 +332,11 @@ target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev) return pde; } pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4); - pde = ldl_phys(cs->as, pde_ptr); + pde = address_space_ldl(cs->as, pde_ptr, + MEMTXATTRS_UNSPECIFIED, &result); + if (result != MEMTX_OK) { + return 0; + } switch (pde & PTE_ENTRYTYPE_MASK) { default: @@ -317,7 +350,11 @@ target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev) return pde; } pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4); - pde = ldl_phys(cs->as, pde_ptr); + pde = address_space_ldl(cs->as, pde_ptr, + MEMTXATTRS_UNSPECIFIED, &result); + if (result != MEMTX_OK) { + return 0; + } switch (pde & PTE_ENTRYTYPE_MASK) { default: @@ -339,11 +376,9 @@ void dump_mmu(CPUSPARCState *env) CPUState *cs = env_cpu(env); target_ulong va, va1, va2; unsigned int n, m, o; - hwaddr pde_ptr, pa; + hwaddr pa; uint32_t pde; - pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2); - pde = ldl_phys(cs->as, pde_ptr); qemu_printf("Root ptr: " TARGET_FMT_plx ", ctx: %d\n", (hwaddr)env->mmuregs[1] << 4, env->mmuregs[2]); for (n = 0, va = 0; n < 256; n++, va += 16 * 1024 * 1024) { |