diff options
Diffstat (limited to 'target/arm')
| -rw-r--r-- | target/arm/cpu.c | 7 | ||||
| -rw-r--r-- | target/arm/cpu_tcg.c | 7 | ||||
| -rw-r--r-- | target/arm/gdbstub.c | 25 | ||||
| -rw-r--r-- | target/arm/hvf/hvf.c | 7 | ||||
| -rw-r--r-- | target/arm/internals.h | 8 | ||||
| -rw-r--r-- | target/arm/mte_helper.c | 6 | ||||
| -rw-r--r-- | target/arm/sve_helper.c | 2 | ||||
| -rw-r--r-- | target/arm/tlb_helper.c | 42 | ||||
| -rw-r--r-- | target/arm/translate-a32.h | 3 | ||||
| -rw-r--r-- | target/arm/translate-sve.c | 17 | ||||
| -rw-r--r-- | target/arm/translate.c | 27 |
11 files changed, 97 insertions, 54 deletions
diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 641a8c2d3d..a211804fd3 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -2031,10 +2031,13 @@ static const struct SysemuCPUOps arm_sysemu_ops = { static const struct TCGCPUOps arm_tcg_ops = { .initialize = arm_translate_init, .synchronize_from_tb = arm_cpu_synchronize_from_tb, - .tlb_fill = arm_cpu_tlb_fill, .debug_excp_handler = arm_debug_excp_handler, -#if !defined(CONFIG_USER_ONLY) +#ifdef CONFIG_USER_ONLY + .record_sigsegv = arm_cpu_record_sigsegv, + .record_sigbus = arm_cpu_record_sigbus, +#else + .tlb_fill = arm_cpu_tlb_fill, .cpu_exec_interrupt = arm_cpu_exec_interrupt, .do_interrupt = arm_cpu_do_interrupt, .do_transaction_failed = arm_cpu_do_transaction_failed, diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c index 0d5adccf1a..13d0e9b195 100644 --- a/target/arm/cpu_tcg.c +++ b/target/arm/cpu_tcg.c @@ -898,10 +898,13 @@ static void pxa270c5_initfn(Object *obj) static const struct TCGCPUOps arm_v7m_tcg_ops = { .initialize = arm_translate_init, .synchronize_from_tb = arm_cpu_synchronize_from_tb, - .tlb_fill = arm_cpu_tlb_fill, .debug_excp_handler = arm_debug_excp_handler, -#if !defined(CONFIG_USER_ONLY) +#ifdef CONFIG_USER_ONLY + .record_sigsegv = arm_cpu_record_sigsegv, + .record_sigbus = arm_cpu_record_sigbus, +#else + .tlb_fill = arm_cpu_tlb_fill, .cpu_exec_interrupt = arm_v7m_cpu_exec_interrupt, .do_interrupt = arm_v7m_cpu_do_interrupt, .do_transaction_failed = arm_cpu_do_transaction_failed, diff --git a/target/arm/gdbstub.c b/target/arm/gdbstub.c index e0dcb33e32..134da0d0ae 100644 --- a/target/arm/gdbstub.c +++ b/target/arm/gdbstub.c @@ -199,6 +199,27 @@ static int vfp_gdb_set_sysreg(CPUARMState *env, uint8_t *buf, int reg) return 0; } +static int mve_gdb_get_reg(CPUARMState *env, GByteArray *buf, int reg) +{ + switch (reg) { + case 0: + return gdb_get_reg32(buf, env->v7m.vpr); + default: + return 0; + } +} + +static int mve_gdb_set_reg(CPUARMState *env, uint8_t *buf, int reg) +{ + switch (reg) { + case 0: + env->v7m.vpr = ldl_p(buf); + return 4; + default: + return 0; + } +} + /** * arm_get/set_gdb_*: get/set a gdb register * @env: the CPU state @@ -468,6 +489,10 @@ void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu) 2, "arm-vfp-sysregs.xml", 0); } } + if (cpu_isar_feature(aa32_mve, cpu)) { + gdb_register_coprocessor(cs, mve_gdb_get_reg, mve_gdb_set_reg, + 1, "arm-m-profile-mve.xml", 0); + } gdb_register_coprocessor(cs, arm_gdb_get_sysreg, arm_gdb_set_sysreg, arm_gen_dynamic_sysreg_xml(cs, cs->gdb_num_regs), "system-registers.xml", 0); diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index bff3e0cde7..0dc96560d3 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -1150,12 +1150,19 @@ int hvf_vcpu_exec(CPUState *cpu) uint32_t sas = (syndrome >> 22) & 3; uint32_t len = 1 << sas; uint32_t srt = (syndrome >> 16) & 0x1f; + uint32_t cm = (syndrome >> 8) & 0x1; uint64_t val = 0; trace_hvf_data_abort(env->pc, hvf_exit->exception.virtual_address, hvf_exit->exception.physical_address, isv, iswrite, s1ptw, len, srt); + if (cm) { + /* We don't cache MMIO regions */ + advance_pc = true; + break; + } + assert(isv); if (iswrite) { diff --git a/target/arm/internals.h b/target/arm/internals.h index 3612107ab2..89f7610ebc 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -544,9 +544,17 @@ static inline bool arm_extabort_type(MemTxResult result) return result != MEMTX_DECODE_ERROR; } +#ifdef CONFIG_USER_ONLY +void arm_cpu_record_sigsegv(CPUState *cpu, vaddr addr, + MMUAccessType access_type, + bool maperr, uintptr_t ra); +void arm_cpu_record_sigbus(CPUState *cpu, vaddr addr, + MMUAccessType access_type, uintptr_t ra); +#else bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); +#endif static inline int arm_to_core_mmu_idx(ARMMMUIdx mmu_idx) { diff --git a/target/arm/mte_helper.c b/target/arm/mte_helper.c index 724175210b..e09b7e46a2 100644 --- a/target/arm/mte_helper.c +++ b/target/arm/mte_helper.c @@ -84,10 +84,8 @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, uintptr_t index; if (!(flags & (ptr_access == MMU_DATA_STORE ? PAGE_WRITE_ORG : PAGE_READ))) { - /* SIGSEGV */ - arm_cpu_tlb_fill(env_cpu(env), ptr, ptr_size, ptr_access, - ptr_mmu_idx, false, ra); - g_assert_not_reached(); + cpu_loop_exit_sigsegv(env_cpu(env), ptr, ptr_access, + !(flags & PAGE_VALID), ra); } /* Require both MAP_ANON and PROT_MTE for the page. */ diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c index dab5f1d1cd..07be55b7e1 100644 --- a/target/arm/sve_helper.c +++ b/target/arm/sve_helper.c @@ -6118,7 +6118,7 @@ DO_LDN_2(4, dd, MO_64) * linux-user/ in its get_user/put_user macros. * * TODO: Construct some helpers, written in assembly, that interact with - * handle_cpu_signal to produce memory ops which can properly report errors + * host_signal_handler to produce memory ops which can properly report errors * without racing. */ diff --git a/target/arm/tlb_helper.c b/target/arm/tlb_helper.c index 3107f9823e..12a934e924 100644 --- a/target/arm/tlb_helper.c +++ b/target/arm/tlb_helper.c @@ -147,28 +147,12 @@ void arm_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, arm_deliver_fault(cpu, addr, access_type, mmu_idx, &fi); } -#endif /* !defined(CONFIG_USER_ONLY) */ - bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr) { ARMCPU *cpu = ARM_CPU(cs); ARMMMUFaultInfo fi = {}; - -#ifdef CONFIG_USER_ONLY - int flags = page_get_flags(useronly_clean_ptr(address)); - if (flags & PAGE_VALID) { - fi.type = ARMFault_Permission; - } else { - fi.type = ARMFault_Translation; - } - fi.level = 3; - - /* now we have a real cpu fault */ - cpu_restore_state(cs, retaddr, true); - arm_deliver_fault(cpu, address, access_type, mmu_idx, &fi); -#else hwaddr phys_addr; target_ulong page_size; int prot, ret; @@ -210,5 +194,29 @@ bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size, cpu_restore_state(cs, retaddr, true); arm_deliver_fault(cpu, address, access_type, mmu_idx, &fi); } -#endif } +#else +void arm_cpu_record_sigsegv(CPUState *cs, vaddr addr, + MMUAccessType access_type, + bool maperr, uintptr_t ra) +{ + ARMMMUFaultInfo fi = { + .type = maperr ? ARMFault_Translation : ARMFault_Permission, + .level = 3, + }; + ARMCPU *cpu = ARM_CPU(cs); + + /* + * We report both ESR and FAR to signal handlers. + * For now, it's easiest to deliver the fault normally. + */ + cpu_restore_state(cs, ra, true); + arm_deliver_fault(cpu, addr, access_type, MMU_USER_IDX, &fi); +} + +void arm_cpu_record_sigbus(CPUState *cs, vaddr addr, + MMUAccessType access_type, uintptr_t ra) +{ + arm_cpu_do_unaligned_access(cs, addr, access_type, MMU_USER_IDX, ra); +} +#endif /* !defined(CONFIG_USER_ONLY) */ diff --git a/target/arm/translate-a32.h b/target/arm/translate-a32.h index 88f15df60e..17af8dc95a 100644 --- a/target/arm/translate-a32.h +++ b/target/arm/translate-a32.h @@ -70,6 +70,9 @@ static inline void store_cpu_offset(TCGv_i32 var, int offset) #define store_cpu_field(var, name) \ store_cpu_offset(var, offsetof(CPUARMState, name)) +#define store_cpu_field_constant(val, name) \ + tcg_gen_st_i32(tcg_constant_i32(val), cpu_env, offsetof(CPUARMState, name)) + /* Create a new temporary and set it to the value of a CPU register. */ static inline TCGv_i32 load_reg(DisasContext *s, int reg) { diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index bc91a64171..76b5fe9f31 100644 --- a/target/arm/translate-sve.c +++ b/target/arm/translate-sve.c @@ -1943,20 +1943,20 @@ static void do_sat_addsub_32(TCGv_i64 reg, TCGv_i64 val, bool u, bool d) static void do_sat_addsub_64(TCGv_i64 reg, TCGv_i64 val, bool u, bool d) { TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2; if (u) { if (d) { tcg_gen_sub_i64(t0, reg, val); - tcg_gen_movi_i64(t1, 0); - tcg_gen_movcond_i64(TCG_COND_LTU, reg, reg, val, t1, t0); + t2 = tcg_constant_i64(0); + tcg_gen_movcond_i64(TCG_COND_LTU, reg, reg, val, t2, t0); } else { tcg_gen_add_i64(t0, reg, val); - tcg_gen_movi_i64(t1, -1); - tcg_gen_movcond_i64(TCG_COND_LTU, reg, t0, reg, t1, t0); + t2 = tcg_constant_i64(-1); + tcg_gen_movcond_i64(TCG_COND_LTU, reg, t0, reg, t2, t0); } } else { + TCGv_i64 t1 = tcg_temp_new_i64(); if (d) { /* Detect signed overflow for subtraction. */ tcg_gen_xor_i64(t0, reg, val); @@ -1966,7 +1966,7 @@ static void do_sat_addsub_64(TCGv_i64 reg, TCGv_i64 val, bool u, bool d) /* Bound the result. */ tcg_gen_movi_i64(reg, INT64_MIN); - t2 = tcg_const_i64(0); + t2 = tcg_constant_i64(0); tcg_gen_movcond_i64(TCG_COND_LT, reg, t0, t2, reg, t1); } else { /* Detect signed overflow for addition. */ @@ -1977,13 +1977,12 @@ static void do_sat_addsub_64(TCGv_i64 reg, TCGv_i64 val, bool u, bool d) /* Bound the result. */ tcg_gen_movi_i64(t1, INT64_MAX); - t2 = tcg_const_i64(0); + t2 = tcg_constant_i64(0); tcg_gen_movcond_i64(TCG_COND_LT, reg, t0, t2, t1, reg); } - tcg_temp_free_i64(t2); + tcg_temp_free_i64(t1); } tcg_temp_free_i64(t0); - tcg_temp_free_i64(t1); } /* Similarly with a vector and a scalar operand. */ diff --git a/target/arm/translate.c b/target/arm/translate.c index d6af5b1b03..98f5925928 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -364,8 +364,7 @@ void clear_eci_state(DisasContext *s) * multiple insn executes. */ if (s->eci) { - TCGv_i32 tmp = tcg_const_i32(0); - store_cpu_field(tmp, condexec_bits); + store_cpu_field_constant(0, condexec_bits); s->eci = 0; } } @@ -389,13 +388,12 @@ static void gen_smul_dual(TCGv_i32 a, TCGv_i32 b) void gen_rev16(TCGv_i32 dest, TCGv_i32 var) { TCGv_i32 tmp = tcg_temp_new_i32(); - TCGv_i32 mask = tcg_const_i32(0x00ff00ff); + TCGv_i32 mask = tcg_constant_i32(0x00ff00ff); tcg_gen_shri_i32(tmp, var, 8); tcg_gen_and_i32(tmp, tmp, mask); tcg_gen_and_i32(var, var, mask); tcg_gen_shli_i32(var, var, 8); tcg_gen_or_i32(dest, var, tmp); - tcg_temp_free_i32(mask); tcg_temp_free_i32(tmp); } @@ -740,9 +738,8 @@ void gen_set_condexec(DisasContext *s) { if (s->condexec_mask) { uint32_t val = (s->condexec_cond << 4) | (s->condexec_mask >> 1); - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_movi_i32(tmp, val); - store_cpu_field(tmp, condexec_bits); + + store_cpu_field_constant(val, condexec_bits); } } @@ -7849,10 +7846,9 @@ static bool op_smlad(DisasContext *s, arg_rrrr *a, bool m_swap, bool sub) t3 = tcg_temp_new_i32(); tcg_gen_sari_i32(t3, t1, 31); qf = load_cpu_field(QF); - one = tcg_const_i32(1); + one = tcg_constant_i32(1); tcg_gen_movcond_i32(TCG_COND_NE, qf, t2, t3, one, qf); store_cpu_field(qf, QF); - tcg_temp_free_i32(one); tcg_temp_free_i32(t3); tcg_temp_free_i32(t2); } @@ -8363,8 +8359,6 @@ static bool trans_BL(DisasContext *s, arg_i *a) static bool trans_BLX_i(DisasContext *s, arg_BLX_i *a) { - TCGv_i32 tmp; - /* * BLX <imm> would be useless on M-profile; the encoding space * is used for other insns from v8.1M onward, and UNDEFs before that. @@ -8378,8 +8372,7 @@ static bool trans_BLX_i(DisasContext *s, arg_BLX_i *a) return false; } tcg_gen_movi_i32(cpu_R[14], s->base.pc_next | s->thumb); - tmp = tcg_const_i32(!s->thumb); - store_cpu_field(tmp, thumb); + store_cpu_field_constant(!s->thumb, thumb); gen_jmp(s, (read_pc(s) & ~3) + a->imm); return true; } @@ -8678,7 +8671,6 @@ static bool trans_LCTP(DisasContext *s, arg_LCTP *a) * doesn't cache branch information, all we need to do is reset * FPSCR.LTPSIZE to 4. */ - TCGv_i32 ltpsize; if (!dc_isar_feature(aa32_lob, s) || !dc_isar_feature(aa32_mve, s)) { @@ -8689,8 +8681,7 @@ static bool trans_LCTP(DisasContext *s, arg_LCTP *a) return true; } - ltpsize = tcg_const_i32(4); - store_cpu_field(ltpsize, v7m.ltpsize); + store_cpu_field_constant(4, v7m.ltpsize); return true; } @@ -9488,9 +9479,7 @@ static void arm_tr_tb_start(DisasContextBase *dcbase, CPUState *cpu) /* Reset the conditional execution bits immediately. This avoids complications trying to do it at the end of the block. */ if (dc->condexec_mask || dc->condexec_cond) { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_movi_i32(tmp, 0); - store_cpu_field(tmp, condexec_bits); + store_cpu_field_constant(0, condexec_bits); } } |