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[69.222.133.165]) by smtp.gmail.com with ESMTPSA id 206sm16077696ywk.44.2019.07.31.10.57.42 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 31 Jul 2019 10:57:42 -0700 (PDT) From: Jan Bobek To: qemu-devel@nongnu.org Date: Wed, 31 Jul 2019 13:56:44 -0400 Message-Id: <20190731175702.4916-5-jan.bobek@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190731175702.4916-1-jan.bobek@gmail.com> References: <20190731175702.4916-1-jan.bobek@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::c42 Subject: [Qemu-devel] [RFC PATCH v1 04/22] target/i386: Simplify gen_exception arguments X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Alex=20Benn=C3=A9e?= , Richard Henderson , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson We can compute cur_eip from values present within DisasContext. Signed-off-by: Richard Henderson --- target/i386/translate.c | 89 ++++++++++++++++++++--------------------- 1 file changed, 44 insertions(+), 45 deletions(-) diff --git a/target/i386/translate.c b/target/i386/translate.c index 692261f73f..9e22eca2dc 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -1272,10 +1272,10 @@ static void gen_helper_fp_arith_STN_ST0(int op, int opreg) } } -static void gen_exception(DisasContext *s, int trapno, target_ulong cur_eip) +static void gen_exception(DisasContext *s, int trapno) { gen_update_cc_op(s); - gen_jmp_im(s, cur_eip); + gen_jmp_im(s, s->pc_start - s->cs_base); gen_helper_raise_exception(cpu_env, tcg_const_i32(trapno)); s->base.is_jmp = DISAS_NORETURN; } @@ -1284,7 +1284,7 @@ static void gen_exception(DisasContext *s, int trapno, target_ulong cur_eip) the instruction is known, but it isn't allowed in the current cpu mode. */ static void gen_illegal_opcode(DisasContext *s) { - gen_exception(s, EXCP06_ILLOP, s->pc_start - s->cs_base); + gen_exception(s, EXCP06_ILLOP); } /* if d == OR_TMP0, it means memory operand (address in A0) */ @@ -3040,8 +3040,7 @@ static const struct SSEOpHelper_eppi sse_op_table7[256] = { [0xdf] = AESNI_OP(aeskeygenassist), }; -static void gen_sse(CPUX86State *env, DisasContext *s, int b, - target_ulong pc_start) +static void gen_sse(CPUX86State *env, DisasContext *s, int b) { int b1, op1_offset, op2_offset, is_xmm, val; int modrm, mod, rm, reg; @@ -3076,7 +3075,7 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b, } /* simple MMX/SSE operation */ if (s->flags & HF_TS_MASK) { - gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); + gen_exception(s, EXCP07_PREX); return; } if (s->flags & HF_EM_MASK) { @@ -4515,7 +4514,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) s->vex_l = 0; s->vex_v = 0; if (sigsetjmp(s->jmpbuf, 0) != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); return s->pc; } @@ -5854,7 +5853,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) if (s->flags & (HF_EM_MASK | HF_TS_MASK)) { /* if CR0.EM or CR0.TS are set, generate an FPU exception */ /* XXX: what to do if illegal op ? */ - gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); + gen_exception(s, EXCP07_PREX); break; } modrm = x86_ldub_code(env, s); @@ -6572,7 +6571,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) set_cc_op(s, CC_OP_EFLAGS); } else if (s->vm86) { if (s->iopl != 3) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_helper_iret_real(cpu_env, tcg_const_i32(s->dflag - 1)); set_cc_op(s, CC_OP_EFLAGS); @@ -6694,7 +6693,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0x9c: /* pushf */ gen_svm_check_intercept(s, pc_start, SVM_EXIT_PUSHF); if (s->vm86 && s->iopl != 3) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_update_cc_op(s); gen_helper_read_eflags(s->T0, cpu_env); @@ -6704,7 +6703,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0x9d: /* popf */ gen_svm_check_intercept(s, pc_start, SVM_EXIT_POPF); if (s->vm86 && s->iopl != 3) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { ot = gen_pop_T0(s); if (s->cpl == 0) { @@ -7021,7 +7020,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; val = x86_ldub_code(env, s); if (val == 0) { - gen_exception(s, EXCP00_DIVZ, pc_start - s->cs_base); + gen_exception(s, EXCP00_DIVZ); } else { gen_helper_aam(cpu_env, tcg_const_i32(val)); set_cc_op(s, CC_OP_LOGICB); @@ -7055,7 +7054,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0x9b: /* fwait */ if ((s->flags & (HF_MP_MASK | HF_TS_MASK)) == (HF_MP_MASK | HF_TS_MASK)) { - gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); + gen_exception(s, EXCP07_PREX); } else { gen_helper_fwait(cpu_env); } @@ -7066,7 +7065,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0xcd: /* int N */ val = x86_ldub_code(env, s); if (s->vm86 && s->iopl != 3) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_interrupt(s, val, pc_start - s->cs_base, s->pc - s->cs_base); } @@ -7089,13 +7088,13 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) if (s->cpl <= s->iopl) { gen_helper_cli(cpu_env); } else { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } } else { if (s->iopl == 3) { gen_helper_cli(cpu_env); } else { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } } break; @@ -7106,7 +7105,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) gen_jmp_im(s, s->pc - s->cs_base); gen_eob_inhibit_irq(s, true); } else { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } break; case 0x62: /* bound */ @@ -7198,7 +7197,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0x130: /* wrmsr */ case 0x132: /* rdmsr */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_update_cc_op(s); gen_jmp_im(s, pc_start - s->cs_base); @@ -7231,7 +7230,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) if (CODE64(s) && env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1) goto illegal_op; if (!s->pe) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_helper_sysenter(cpu_env); gen_eob(s); @@ -7242,7 +7241,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) if (CODE64(s) && env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1) goto illegal_op; if (!s->pe) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_helper_sysexit(cpu_env, tcg_const_i32(s->dflag - 1)); gen_eob(s); @@ -7261,7 +7260,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) break; case 0x107: /* sysret */ if (!s->pe) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_helper_sysret(cpu_env, tcg_const_i32(s->dflag - 1)); /* condition codes are modified only in long mode */ @@ -7283,7 +7282,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) break; case 0xf4: /* hlt */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_update_cc_op(s); gen_jmp_im(s, pc_start - s->cs_base); @@ -7309,7 +7308,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) if (!s->pe || s->vm86) goto illegal_op; if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_WRITE); gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0); @@ -7330,7 +7329,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) if (!s->pe || s->vm86) goto illegal_op; if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_WRITE); gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0); @@ -7446,7 +7445,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } tcg_gen_concat_tl_i64(s->tmp1_i64, cpu_regs[R_EAX], @@ -7463,7 +7462,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_update_cc_op(s); @@ -7488,7 +7487,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_update_cc_op(s); @@ -7501,7 +7500,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_update_cc_op(s); @@ -7516,7 +7515,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_update_cc_op(s); @@ -7530,7 +7529,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_update_cc_op(s); @@ -7554,7 +7553,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_update_cc_op(s); @@ -7564,7 +7563,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) CASE_MODRM_MEM_OP(2): /* lgdt */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_svm_check_intercept(s, pc_start, SVM_EXIT_GDTR_WRITE); @@ -7581,7 +7580,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) CASE_MODRM_MEM_OP(3): /* lidt */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_svm_check_intercept(s, pc_start, SVM_EXIT_IDTR_WRITE); @@ -7626,7 +7625,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) break; CASE_MODRM_OP(6): /* lmsw */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0); @@ -7638,7 +7637,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) CASE_MODRM_MEM_OP(7): /* invlpg */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); break; } gen_update_cc_op(s); @@ -7653,7 +7652,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) #ifdef TARGET_X86_64 if (CODE64(s)) { if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { tcg_gen_mov_tl(s->T0, cpu_seg_base[R_GS]); tcg_gen_ld_tl(cpu_seg_base[R_GS], cpu_env, @@ -7690,7 +7689,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0x108: /* invd */ case 0x109: /* wbinvd */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_svm_check_intercept(s, pc_start, (b & 2) ? SVM_EXIT_INVD : SVM_EXIT_WBINVD); /* nothing to do */ @@ -8014,7 +8013,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0x120: /* mov reg, crN */ case 0x122: /* mov crN, reg */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { modrm = x86_ldub_code(env, s); /* Ignore the mod bits (assume (modrm&0xc0)==0xc0). @@ -8071,7 +8070,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0x121: /* mov reg, drN */ case 0x123: /* mov drN, reg */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { modrm = x86_ldub_code(env, s); /* Ignore the mod bits (assume (modrm&0xc0)==0xc0). @@ -8105,7 +8104,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) break; case 0x106: /* clts */ if (s->cpl != 0) { - gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); + gen_exception(s, EXCP0D_GPF); } else { gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0); gen_helper_clts(cpu_env); @@ -8136,7 +8135,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if ((s->flags & HF_EM_MASK) || (s->flags & HF_TS_MASK)) { - gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); + gen_exception(s, EXCP07_PREX); break; } gen_lea_modrm(env, s, modrm); @@ -8149,7 +8148,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if ((s->flags & HF_EM_MASK) || (s->flags & HF_TS_MASK)) { - gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); + gen_exception(s, EXCP07_PREX); break; } gen_lea_modrm(env, s, modrm); @@ -8161,7 +8160,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if (s->flags & HF_TS_MASK) { - gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); + gen_exception(s, EXCP07_PREX); break; } gen_lea_modrm(env, s, modrm); @@ -8174,7 +8173,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } if (s->flags & HF_TS_MASK) { - gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); + gen_exception(s, EXCP07_PREX); break; } gen_lea_modrm(env, s, modrm); @@ -8377,7 +8376,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0x1c2: case 0x1c4 ... 0x1c6: case 0x1d0 ... 0x1fe: - gen_sse(env, s, b, pc_start); + gen_sse(env, s, b); break; default: goto unknown_op; -- 2.20.1