diff options
Diffstat (limited to 'target-i386/translate.c')
| -rw-r--r-- | target-i386/translate.c | 65 |
1 files changed, 61 insertions, 4 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index 6f9c25672f..ea0933ef5c 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -65,6 +65,8 @@ static TCGv cpu_T[2], cpu_T3; static TCGv cpu_tmp0, cpu_tmp1_i64, cpu_tmp2_i32, cpu_tmp3_i32, cpu_tmp4, cpu_ptr0, cpu_ptr1; static TCGv cpu_tmp5, cpu_tmp6; +#include "gen-icount.h" + #ifdef TARGET_X86_64 static int x86_64_hregs; #endif @@ -1203,6 +1205,8 @@ static inline void gen_cmps(DisasContext *s, int ot) static inline void gen_ins(DisasContext *s, int ot) { + if (use_icount) + gen_io_start(); gen_string_movl_A0_EDI(s); /* Note: we must do this dummy write first to be restartable in case of page fault. */ @@ -1215,10 +1219,14 @@ static inline void gen_ins(DisasContext *s, int ot) gen_op_st_T0_A0(ot + s->mem_index); gen_op_movl_T0_Dshift(ot); gen_op_add_reg_T0(s->aflag, R_EDI); + if (use_icount) + gen_io_end(); } static inline void gen_outs(DisasContext *s, int ot) { + if (use_icount) + gen_io_start(); gen_string_movl_A0_ESI(s); gen_op_ld_T0_A0(ot + s->mem_index); @@ -1230,6 +1238,8 @@ static inline void gen_outs(DisasContext *s, int ot) gen_op_movl_T0_Dshift(ot); gen_op_add_reg_T0(s->aflag, R_ESI); + if (use_icount) + gen_io_end(); } /* same method as Valgrind : we generate jumps to current or next @@ -5570,6 +5580,9 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_repz_ins(s, ot, pc_start - s->cs_base, s->pc - s->cs_base); } else { gen_ins(s, ot); + if (use_icount) { + gen_jmp(s, s->pc - s->cs_base); + } } break; case 0x6e: /* outsS */ @@ -5586,6 +5599,9 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_repz_outs(s, ot, pc_start - s->cs_base, s->pc - s->cs_base); } else { gen_outs(s, ot); + if (use_icount) { + gen_jmp(s, s->pc - s->cs_base); + } } break; @@ -5602,9 +5618,15 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_op_movl_T0_im(val); gen_check_io(s, ot, pc_start - s->cs_base, SVM_IOIO_TYPE_MASK | svm_is_rep(prefixes)); + if (use_icount) + gen_io_start(); tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); tcg_gen_helper_1_1(helper_in_func[ot], cpu_T[1], cpu_tmp2_i32); gen_op_mov_reg_T1(ot, R_EAX); + if (use_icount) { + gen_io_end(); + gen_jmp(s, s->pc - s->cs_base); + } break; case 0xe6: case 0xe7: @@ -5618,10 +5640,16 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) svm_is_rep(prefixes)); gen_op_mov_TN_reg(ot, 1, R_EAX); + if (use_icount) + gen_io_start(); tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); tcg_gen_andi_i32(cpu_tmp2_i32, cpu_tmp2_i32, 0xffff); tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T[1]); tcg_gen_helper_0_2(helper_out_func[ot], cpu_tmp2_i32, cpu_tmp3_i32); + if (use_icount) { + gen_io_end(); + gen_jmp(s, s->pc - s->cs_base); + } break; case 0xec: case 0xed: @@ -5633,9 +5661,15 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_op_andl_T0_ffff(); gen_check_io(s, ot, pc_start - s->cs_base, SVM_IOIO_TYPE_MASK | svm_is_rep(prefixes)); + if (use_icount) + gen_io_start(); tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); tcg_gen_helper_1_1(helper_in_func[ot], cpu_T[1], cpu_tmp2_i32); gen_op_mov_reg_T1(ot, R_EAX); + if (use_icount) { + gen_io_end(); + gen_jmp(s, s->pc - s->cs_base); + } break; case 0xee: case 0xef: @@ -5649,10 +5683,16 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) svm_is_rep(prefixes)); gen_op_mov_TN_reg(ot, 1, R_EAX); + if (use_icount) + gen_io_start(); tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); tcg_gen_andi_i32(cpu_tmp2_i32, cpu_tmp2_i32, 0xffff); tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T[1]); tcg_gen_helper_0_2(helper_out_func[ot], cpu_tmp2_i32, cpu_tmp3_i32); + if (use_icount) { + gen_io_end(); + gen_jmp(s, s->pc - s->cs_base); + } break; /************************/ @@ -7109,6 +7149,8 @@ static inline int gen_intermediate_code_internal(CPUState *env, uint64_t flags; target_ulong pc_start; target_ulong cs_base; + int num_insns; + int max_insns; /* generate intermediate code */ pc_start = tb->pc; @@ -7179,7 +7221,12 @@ static inline int gen_intermediate_code_internal(CPUState *env, dc->is_jmp = DISAS_NEXT; pc_ptr = pc_start; lj = -1; + num_insns = 0; + max_insns = tb->cflags & CF_COUNT_MASK; + if (max_insns == 0) + max_insns = CF_COUNT_MASK; + gen_icount_start(); for(;;) { if (env->nb_breakpoints > 0) { for(j = 0; j < env->nb_breakpoints; j++) { @@ -7199,8 +7246,13 @@ static inline int gen_intermediate_code_internal(CPUState *env, gen_opc_pc[lj] = pc_ptr; gen_opc_cc_op[lj] = dc->cc_op; gen_opc_instr_start[lj] = 1; + gen_opc_icount[lj] = num_insns; } + if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) + gen_io_start(); + pc_ptr = disas_insn(dc, pc_ptr); + num_insns++; /* stop translation if indicated */ if (dc->is_jmp) break; @@ -7210,20 +7262,23 @@ static inline int gen_intermediate_code_internal(CPUState *env, the flag and abort the translation to give the irqs a change to be happen */ if (dc->tf || dc->singlestep_enabled || - (flags & HF_INHIBIT_IRQ_MASK) || - (cflags & CF_SINGLE_INSN)) { + (flags & HF_INHIBIT_IRQ_MASK)) { gen_jmp_im(pc_ptr - dc->cs_base); gen_eob(dc); break; } /* if too long translation, stop generation too */ if (gen_opc_ptr >= gen_opc_end || - (pc_ptr - pc_start) >= (TARGET_PAGE_SIZE - 32)) { + (pc_ptr - pc_start) >= (TARGET_PAGE_SIZE - 32) || + num_insns >= max_insns) { gen_jmp_im(pc_ptr - dc->cs_base); gen_eob(dc); break; } } + if (tb->cflags & CF_LAST_IO) + gen_io_end(); + gen_icount_end(tb, num_insns); *gen_opc_ptr = INDEX_op_end; /* we don't forget to fill the last values */ if (search_pc) { @@ -7252,8 +7307,10 @@ static inline int gen_intermediate_code_internal(CPUState *env, } #endif - if (!search_pc) + if (!search_pc) { tb->size = pc_ptr - pc_start; + tb->icount = num_insns; + } return 0; } |