diff options
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/helper.c | 34 | ||||
| -rw-r--r-- | target-i386/translate.c | 19 |
2 files changed, 35 insertions, 18 deletions
diff --git a/target-i386/helper.c b/target-i386/helper.c index 0ad7c8e3b6..678503a7cc 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -892,7 +892,10 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) uint32_t page_offset; int page_size; - if (env->cr[4] & CR4_PAE_MASK) { + if (!(env->cr[0] & CR0_PG_MASK)) { + pte = addr & env->a20_mask; + page_size = 4096; + } else if (env->cr[4] & CR4_PAE_MASK) { target_ulong pdpe_addr; uint64_t pde, pdpe; @@ -950,26 +953,21 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) } else { uint32_t pde; - if (!(env->cr[0] & CR0_PG_MASK)) { - pte = addr; - page_size = 4096; + /* page directory entry */ + pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask; + pde = ldl_phys(pde_addr); + if (!(pde & PG_PRESENT_MASK)) + return -1; + if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) { + pte = pde & ~0x003ff000; /* align to 4MB */ + page_size = 4096 * 1024; } else { /* page directory entry */ - pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask; - pde = ldl_phys(pde_addr); - if (!(pde & PG_PRESENT_MASK)) + pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask; + pte = ldl_phys(pte_addr); + if (!(pte & PG_PRESENT_MASK)) return -1; - if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) { - pte = pde & ~0x003ff000; /* align to 4MB */ - page_size = 4096 * 1024; - } else { - /* page directory entry */ - pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask; - pte = ldl_phys(pte_addr); - if (!(pte & PG_PRESENT_MASK)) - return -1; - page_size = 4096; - } + page_size = 4096; } pte = pte & env->a20_mask; } diff --git a/target-i386/translate.c b/target-i386/translate.c index 6d879003b3..be74ebc278 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -6434,12 +6434,18 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, } break; case 0x1d: /* fucomi */ + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } gen_update_cc_op(s); gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); gen_helper_fucomi_ST0_FT0(cpu_env); set_cc_op(s, CC_OP_EFLAGS); break; case 0x1e: /* fcomi */ + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } gen_update_cc_op(s); gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); gen_helper_fcomi_ST0_FT0(cpu_env); @@ -6495,6 +6501,9 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, } break; case 0x3d: /* fucomip */ + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } gen_update_cc_op(s); gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); gen_helper_fucomi_ST0_FT0(cpu_env); @@ -6502,6 +6511,9 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, set_cc_op(s, CC_OP_EFLAGS); break; case 0x3e: /* fcomip */ + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } gen_update_cc_op(s); gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); gen_helper_fcomi_ST0_FT0(cpu_env); @@ -6518,6 +6530,10 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, (JCC_BE << 1), (JCC_P << 1), }; + + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } op1 = fcmov_cc[op & 3] | (((op >> 3) & 1) ^ 1); l1 = gen_new_label(); gen_jcc1_noeob(s, op1, l1); @@ -6889,6 +6905,9 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_ldst_modrm(env, s, modrm, OT_BYTE, OR_TMP0, 1); break; case 0x140 ... 0x14f: /* cmov Gv, Ev */ + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } ot = dflag + OT_WORD; modrm = cpu_ldub_code(env, s->pc++); reg = ((modrm >> 3) & 7) | rex_r; |