diff options
Diffstat (limited to 'target-arm/translate-a64.c')
| -rw-r--r-- | target-arm/translate-a64.c | 48 |
1 files changed, 31 insertions, 17 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c index 0b192a1f5b..ffa6cb8e56 100644 --- a/target-arm/translate-a64.c +++ b/target-arm/translate-a64.c @@ -197,12 +197,15 @@ static void gen_exception_internal(int excp) tcg_temp_free_i32(tcg_excp); } -static void gen_exception(int excp, uint32_t syndrome) +static void gen_exception(int excp, uint32_t syndrome, uint32_t target_el) { TCGv_i32 tcg_excp = tcg_const_i32(excp); TCGv_i32 tcg_syn = tcg_const_i32(syndrome); + TCGv_i32 tcg_el = tcg_const_i32(target_el); - gen_helper_exception_with_syndrome(cpu_env, tcg_excp, tcg_syn); + gen_helper_exception_with_syndrome(cpu_env, tcg_excp, + tcg_syn, tcg_el); + tcg_temp_free_i32(tcg_el); tcg_temp_free_i32(tcg_syn); tcg_temp_free_i32(tcg_excp); } @@ -215,10 +218,10 @@ static void gen_exception_internal_insn(DisasContext *s, int offset, int excp) } static void gen_exception_insn(DisasContext *s, int offset, int excp, - uint32_t syndrome) + uint32_t syndrome, uint32_t target_el) { gen_a64_set_pc_im(s->pc - offset); - gen_exception(excp, syndrome); + gen_exception(excp, syndrome, target_el); s->is_jmp = DISAS_EXC; } @@ -245,7 +248,8 @@ static void gen_step_complete_exception(DisasContext *s) * of the exception, and our syndrome information is always correct. */ gen_ss_advance(s); - gen_exception(EXCP_UDEF, syn_swstep(s->ss_same_el, 1, s->is_ldex)); + gen_exception(EXCP_UDEF, syn_swstep(s->ss_same_el, 1, s->is_ldex), + default_exception_el(s)); s->is_jmp = DISAS_EXC; } @@ -292,7 +296,8 @@ static inline void gen_goto_tb(DisasContext *s, int n, uint64_t dest) static void unallocated_encoding(DisasContext *s) { /* Unallocated and reserved encodings are uncategorized */ - gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized()); + gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized(), + default_exception_el(s)); } #define unsupported_encoding(s, insn) \ @@ -407,7 +412,7 @@ static TCGv_i64 read_cpu_reg_sp(DisasContext *s, int reg, int sf) static inline void assert_fp_access_checked(DisasContext *s) { #ifdef CONFIG_DEBUG_TCG - if (unlikely(!s->fp_access_checked || !s->cpacr_fpen)) { + if (unlikely(!s->fp_access_checked || s->fp_excp_el)) { fprintf(stderr, "target-arm: FP access check missing for " "instruction 0x%08x\n", s->insn); abort(); @@ -967,11 +972,12 @@ static inline bool fp_access_check(DisasContext *s) assert(!s->fp_access_checked); s->fp_access_checked = true; - if (s->cpacr_fpen) { + if (!s->fp_excp_el) { return true; } - gen_exception_insn(s, 4, EXCP_UDEF, syn_fp_access_trap(1, 0xe, false)); + gen_exception_insn(s, 4, EXCP_UDEF, syn_fp_access_trap(1, 0xe, false), + s->fp_excp_el); return false; } @@ -1498,7 +1504,8 @@ static void disas_exc(DisasContext *s, uint32_t insn) switch (op2_ll) { case 1: gen_ss_advance(s); - gen_exception_insn(s, 0, EXCP_SWI, syn_aa64_svc(imm16)); + gen_exception_insn(s, 0, EXCP_SWI, syn_aa64_svc(imm16), + default_exception_el(s)); break; case 2: if (s->current_el == 0) { @@ -1511,7 +1518,7 @@ static void disas_exc(DisasContext *s, uint32_t insn) gen_a64_set_pc_im(s->pc - 4); gen_helper_pre_hvc(cpu_env); gen_ss_advance(s); - gen_exception_insn(s, 0, EXCP_HVC, syn_aa64_hvc(imm16)); + gen_exception_insn(s, 0, EXCP_HVC, syn_aa64_hvc(imm16), 2); break; case 3: if (s->current_el == 0) { @@ -1523,7 +1530,7 @@ static void disas_exc(DisasContext *s, uint32_t insn) gen_helper_pre_smc(cpu_env, tmp); tcg_temp_free_i32(tmp); gen_ss_advance(s); - gen_exception_insn(s, 0, EXCP_SMC, syn_aa64_smc(imm16)); + gen_exception_insn(s, 0, EXCP_SMC, syn_aa64_smc(imm16), 3); break; default: unallocated_encoding(s); @@ -1536,7 +1543,8 @@ static void disas_exc(DisasContext *s, uint32_t insn) break; } /* BRK */ - gen_exception_insn(s, 4, EXCP_BKPT, syn_aa64_bkpt(imm16)); + gen_exception_insn(s, 4, EXCP_BKPT, syn_aa64_bkpt(imm16), + default_exception_el(s)); break; case 2: if (op2_ll != 0) { @@ -10936,6 +10944,7 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu, dc->condjmp = 0; dc->aarch64 = 1; + dc->el3_is_aa64 = arm_el_is_aa64(env, 3); dc->thumb = 0; dc->bswap_code = 0; dc->condexec_mask = 0; @@ -10945,7 +10954,7 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu, #if !defined(CONFIG_USER_ONLY) dc->user = (dc->current_el == 0); #endif - dc->cpacr_fpen = ARM_TBFLAG_AA64_FPEN(tb->flags); + dc->fp_excp_el = ARM_TBFLAG_FPEXC_EL(tb->flags); dc->vec_len = 0; dc->vec_stride = 0; dc->cp_regs = cpu->cp_regs; @@ -10966,8 +10975,8 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu, * emit code to generate a software step exception * end the TB */ - dc->ss_active = ARM_TBFLAG_AA64_SS_ACTIVE(tb->flags); - dc->pstate_ss = ARM_TBFLAG_AA64_PSTATE_SS(tb->flags); + dc->ss_active = ARM_TBFLAG_SS_ACTIVE(tb->flags); + dc->pstate_ss = ARM_TBFLAG_PSTATE_SS(tb->flags); dc->is_ldex = false; dc->ss_same_el = (arm_debug_target_el(env) == dc->current_el); @@ -11031,7 +11040,8 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu, * bits should be zero. */ assert(num_insns == 0); - gen_exception(EXCP_UDEF, syn_swstep(dc->ss_same_el, 0, 0)); + gen_exception(EXCP_UDEF, syn_swstep(dc->ss_same_el, 0, 0), + default_exception_el(dc)); dc->is_jmp = DISAS_EXC; break; } @@ -11103,6 +11113,10 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu, */ gen_a64_set_pc_im(dc->pc); gen_helper_wfi(cpu_env); + /* The helper doesn't necessarily throw an exception, but we + * must go back to the main loop to check for interrupts anyway. + */ + tcg_gen_exit_tb(0); break; } } |