diff options
| -rw-r--r-- | target/s390x/cpu.h | 9 | ||||
| -rw-r--r-- | target/s390x/cpu_models.c | 8 | ||||
| -rw-r--r-- | target/s390x/helper.c | 44 | ||||
| -rw-r--r-- | target/s390x/insn-data.def | 2 | ||||
| -rw-r--r-- | target/s390x/misc_helper.c | 31 | ||||
| -rw-r--r-- | target/s390x/mmu_helper.c | 6 | ||||
| -rw-r--r-- | target/s390x/translate.c | 12 |
7 files changed, 66 insertions, 46 deletions
diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index a4d31df2b5..a4028fb315 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -149,7 +149,7 @@ typedef struct CPUS390XState { CPU_COMMON uint32_t cpu_num; - uint32_t machine_type; + uint64_t cpuid; uint64_t tod_offset; uint64_t tod_basetime; @@ -460,11 +460,6 @@ static inline bool get_per_in_range(CPUS390XState *env, uint64_t addr) } #ifndef CONFIG_USER_ONLY -/* In several cases of runtime exceptions, we havn't recorded the true - instruction length. Use these codes when raising exceptions in order - to re-compute the length by examining the insn in memory. */ -#define ILEN_LATER 0x20 -#define ILEN_LATER_INC 0x21 void trigger_pgm_exception(CPUS390XState *env, uint32_t code, uint32_t ilen); #endif @@ -1133,6 +1128,8 @@ uint32_t set_cc_nz_f128(float128 v); int handle_diag_288(CPUS390XState *env, uint64_t r1, uint64_t r3); void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3); #endif +/* automatically detect the instruction length */ +#define ILEN_AUTO 0xff void program_interrupt(CPUS390XState *env, uint32_t code, int ilen); void QEMU_NORETURN runtime_exception(CPUS390XState *env, int excp, uintptr_t retaddr); diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index b34318f1e3..478bcc604e 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -737,8 +737,6 @@ static inline void apply_cpu_model(const S390CPUModel *model, Error **errp) if (kvm_enabled()) { kvm_s390_apply_cpu_model(model, errp); - } else if (model) { - /* FIXME TCG - use data for stdip/stfl */ } if (!*errp) { @@ -786,6 +784,12 @@ void s390_realize_cpu_model(CPUState *cs, Error **errp) } apply_cpu_model(cpu->model, errp); + + cpu->env.cpuid = s390_cpuid_from_cpu_model(cpu->model); + if (tcg_enabled()) { + /* basic mode, write the cpu address into the first 4 bit of the ID */ + cpu->env.cpuid = deposit64(cpu->env.cpuid, 54, 4, cpu->env.cpu_num); + } } static void get_feature(Object *obj, Visitor *v, const char *name, diff --git a/target/s390x/helper.c b/target/s390x/helper.c index a8d20c51fa..aef09e1234 100644 --- a/target/s390x/helper.c +++ b/target/s390x/helper.c @@ -204,7 +204,7 @@ int s390_cpu_handle_mmu_fault(CPUState *cs, vaddr orig_vaddr, if (raddr > ram_size) { DPRINTF("%s: raddr %" PRIx64 " > ram_size %" PRIx64 "\n", __func__, (uint64_t)raddr, (uint64_t)ram_size); - trigger_pgm_exception(env, PGM_ADDRESSING, ILEN_LATER_INC); + trigger_pgm_exception(env, PGM_ADDRESSING, ILEN_AUTO); return 1; } @@ -331,16 +331,42 @@ static void do_program_interrupt(CPUS390XState *env) LowCore *lowcore; int ilen = env->int_pgm_ilen; - switch (ilen) { - case ILEN_LATER: - ilen = get_ilen(cpu_ldub_code(env, env->psw.addr)); - break; - case ILEN_LATER_INC: + if (ilen == ILEN_AUTO) { ilen = get_ilen(cpu_ldub_code(env, env->psw.addr)); + } + assert(ilen == 2 || ilen == 4 || ilen == 6); + + switch (env->int_pgm_code) { + case PGM_PER: + if (env->per_perc_atmid & PER_CODE_EVENT_NULLIFICATION) { + break; + } + /* FALL THROUGH */ + case PGM_OPERATION: + case PGM_PRIVILEGED: + case PGM_EXECUTE: + case PGM_PROTECTION: + case PGM_ADDRESSING: + case PGM_SPECIFICATION: + case PGM_DATA: + case PGM_FIXPT_OVERFLOW: + case PGM_FIXPT_DIVIDE: + case PGM_DEC_OVERFLOW: + case PGM_DEC_DIVIDE: + case PGM_HFP_EXP_OVERFLOW: + case PGM_HFP_EXP_UNDERFLOW: + case PGM_HFP_SIGNIFICANCE: + case PGM_HFP_DIVIDE: + case PGM_TRANS_SPEC: + case PGM_SPECIAL_OP: + case PGM_OPERAND: + case PGM_HFP_SQRT: + case PGM_PC_TRANS_SPEC: + case PGM_ALET_SPEC: + case PGM_MONITOR: + /* advance the PSW if our exception is not nullifying */ env->psw.addr += ilen; break; - default: - assert(ilen == 2 || ilen == 4 || ilen == 6); } qemu_log_mask(CPU_LOG_INT, "%s: code=0x%x ilen=%d\n", @@ -737,6 +763,6 @@ void s390x_cpu_do_unaligned_access(CPUState *cs, vaddr addr, if (retaddr) { cpu_restore_state(cs, retaddr); } - program_interrupt(env, PGM_SPECIFICATION, ILEN_LATER); + program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO); } #endif /* CONFIG_USER_ONLY */ diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 73dd05daf0..d089707073 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -960,7 +960,7 @@ /* STORE CPU ADDRESS */ C(0xb212, STAP, S, Z, la2, 0, new, m1_16, stap, 0) /* STORE CPU ID */ - C(0xb202, STIDP, S, Z, la2, 0, new, m1_64, stidp, 0) + C(0xb202, STIDP, S, Z, la2, 0, new, 0, stidp, 0) /* STORE CPU TIMER */ C(0xb209, STPT, S, Z, la2, 0, new, m1_64, stpt, 0) /* STORE FACILITY LIST */ diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c index edcdf17db6..b5081019c5 100644 --- a/target/s390x/misc_helper.c +++ b/target/s390x/misc_helper.c @@ -54,19 +54,14 @@ void QEMU_NORETURN runtime_exception(CPUS390XState *env, int excp, uintptr_t retaddr) { CPUState *cs = CPU(s390_env_get_cpu(env)); - int t; cs->exception_index = EXCP_PGM; env->int_pgm_code = excp; + env->int_pgm_ilen = ILEN_AUTO; /* Use the (ultimate) callers address to find the insn that trapped. */ cpu_restore_state(cs, retaddr); - /* Advance past the insn. */ - t = cpu_ldub_code(env, env->psw.addr); - env->int_pgm_ilen = t = get_ilen(t); - env->psw.addr += t; - cpu_loop_exit(cs); } @@ -199,12 +194,12 @@ void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3) IplParameterBlock *iplb; if (env->psw.mask & PSW_MASK_PSTATE) { - program_interrupt(env, PGM_PRIVILEGED, ILEN_LATER_INC); + program_interrupt(env, PGM_PRIVILEGED, ILEN_AUTO); return; } if ((subcode & ~0x0ffffULL) || (subcode > 6)) { - program_interrupt(env, PGM_SPECIFICATION, ILEN_LATER_INC); + program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO); return; } @@ -229,12 +224,12 @@ void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3) break; case 5: if ((r1 & 1) || (addr & 0x0fffULL)) { - program_interrupt(env, PGM_SPECIFICATION, ILEN_LATER_INC); + program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO); return; } if (!address_space_access_valid(&address_space_memory, addr, sizeof(IplParameterBlock), false)) { - program_interrupt(env, PGM_ADDRESSING, ILEN_LATER_INC); + program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO); return; } iplb = g_malloc0(sizeof(IplParameterBlock)); @@ -258,12 +253,12 @@ out: return; case 6: if ((r1 & 1) || (addr & 0x0fffULL)) { - program_interrupt(env, PGM_SPECIFICATION, ILEN_LATER_INC); + program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO); return; } if (!address_space_access_valid(&address_space_memory, addr, sizeof(IplParameterBlock), true)) { - program_interrupt(env, PGM_ADDRESSING, ILEN_LATER_INC); + program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO); return; } iplb = s390_ipl_get_iplb(); @@ -307,7 +302,7 @@ void HELPER(diag)(CPUS390XState *env, uint32_t r1, uint32_t r3, uint32_t num) } if (r) { - program_interrupt(env, PGM_OPERATION, ILEN_LATER_INC); + program_interrupt(env, PGM_OPERATION, ILEN_AUTO); } } @@ -383,6 +378,7 @@ uint64_t HELPER(stpt)(CPUS390XState *env) uint32_t HELPER(stsi)(CPUS390XState *env, uint64_t a0, uint64_t r0, uint64_t r1) { + S390CPU *cpu = s390_env_get_cpu(env); int cc = 0; int sel1, sel2; @@ -402,12 +398,14 @@ uint32_t HELPER(stsi)(CPUS390XState *env, uint64_t a0, if ((sel1 == 1) && (sel2 == 1)) { /* Basic Machine Configuration */ struct sysib_111 sysib; + char type[5] = {}; memset(&sysib, 0, sizeof(sysib)); ebcdic_put(sysib.manuf, "QEMU ", 16); - /* same as machine type number in STORE CPU ID */ - ebcdic_put(sysib.type, "QEMU", 4); - /* same as model number in STORE CPU ID */ + /* same as machine type number in STORE CPU ID, but in EBCDIC */ + snprintf(type, ARRAY_SIZE(type), "%X", cpu->model->def->type); + ebcdic_put(sysib.type, type, 4); + /* model number (not stored in STORE CPU ID for z/Architecure) */ ebcdic_put(sysib.model, "QEMU ", 16); ebcdic_put(sysib.sequence, "QEMU ", 16); ebcdic_put(sysib.plant, "QEMU", 4); @@ -668,6 +666,7 @@ void HELPER(per_ifetch)(CPUS390XState *env, uint64_t addr) if (env->cregs[9] & PER_CR9_EVENT_NULLIFICATION) { CPUState *cs = CPU(s390_env_get_cpu(env)); + env->per_perc_atmid |= PER_CODE_EVENT_NULLIFICATION; env->int_pgm_code = PGM_PER; env->int_pgm_ilen = get_ilen(cpu_ldub_code(env, addr)); diff --git a/target/s390x/mmu_helper.c b/target/s390x/mmu_helper.c index 501e39010d..a873dc48a0 100644 --- a/target/s390x/mmu_helper.c +++ b/target/s390x/mmu_helper.c @@ -79,13 +79,13 @@ static void trigger_prot_fault(CPUS390XState *env, target_ulong vaddr, return; } - trigger_access_exception(env, PGM_PROTECTION, ILEN_LATER_INC, tec); + trigger_access_exception(env, PGM_PROTECTION, ILEN_AUTO, tec); } static void trigger_page_fault(CPUS390XState *env, target_ulong vaddr, uint32_t type, uint64_t asc, int rw, bool exc) { - int ilen = ILEN_LATER; + int ilen = ILEN_AUTO; uint64_t tec; tec = vaddr | (rw == MMU_DATA_STORE ? FS_WRITE : FS_READ) | asc >> 46; @@ -431,7 +431,7 @@ static int translate_pages(S390CPU *cpu, vaddr addr, int nr_pages, for (i = 0; i < nr_pages; i++) { /* Low-address protection? */ if (lowprot && (addr < 512 || (addr >= 4096 && addr < 4096 + 512))) { - trigger_access_exception(env, PGM_PROTECTION, ILEN_LATER_INC, 0); + trigger_access_exception(env, PGM_PROTECTION, ILEN_AUTO, 0); return -EACCES; } ret = mmu_translate(env, addr, is_write, asc, &pages[i], &pflags, true); diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 95f91d4f08..8c055b7bb7 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -355,8 +355,7 @@ static void gen_program_exception(DisasContext *s, int code) tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUS390XState, int_pgm_ilen)); tcg_temp_free_i32(tmp); - /* Advance past instruction. */ - s->pc = s->next_pc; + /* update the psw */ update_psw_addr(s); /* Save off cc. */ @@ -3877,14 +3876,9 @@ static ExitStatus op_stctl(DisasContext *s, DisasOps *o) static ExitStatus op_stidp(DisasContext *s, DisasOps *o) { - TCGv_i64 t1 = tcg_temp_new_i64(); - check_privileged(s); - tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, cpu_num)); - tcg_gen_ld32u_i64(t1, cpu_env, offsetof(CPUS390XState, machine_type)); - tcg_gen_deposit_i64(o->out, o->out, t1, 32, 32); - tcg_temp_free_i64(t1); - + tcg_gen_ld_i64(o->out, cpu_env, offsetof(CPUS390XState, cpuid)); + tcg_gen_qemu_st_i64(o->out, o->addr1, get_mem_index(s), MO_TEQ | MO_ALIGN); return NO_EXIT; } |