| /* |
| * s390x internal definitions and helpers |
| * |
| * Copyright (c) 2009 Ulrich Hecht |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| * See the COPYING file in the top-level directory. |
| */ |
| |
| #ifndef S390X_INTERNAL_H |
| #define S390X_INTERNAL_H |
| |
| #include "cpu.h" |
| |
| #ifndef CONFIG_USER_ONLY |
| typedef struct LowCore { |
| /* prefix area: defined by architecture */ |
| uint32_t ccw1[2]; /* 0x000 */ |
| uint32_t ccw2[4]; /* 0x008 */ |
| uint8_t pad1[0x80 - 0x18]; /* 0x018 */ |
| uint32_t ext_params; /* 0x080 */ |
| uint16_t cpu_addr; /* 0x084 */ |
| uint16_t ext_int_code; /* 0x086 */ |
| uint16_t svc_ilen; /* 0x088 */ |
| uint16_t svc_code; /* 0x08a */ |
| uint16_t pgm_ilen; /* 0x08c */ |
| uint16_t pgm_code; /* 0x08e */ |
| uint32_t data_exc_code; /* 0x090 */ |
| uint16_t mon_class_num; /* 0x094 */ |
| uint16_t per_perc_atmid; /* 0x096 */ |
| uint64_t per_address; /* 0x098 */ |
| uint8_t exc_access_id; /* 0x0a0 */ |
| uint8_t per_access_id; /* 0x0a1 */ |
| uint8_t op_access_id; /* 0x0a2 */ |
| uint8_t ar_access_id; /* 0x0a3 */ |
| uint8_t pad2[0xA8 - 0xA4]; /* 0x0a4 */ |
| uint64_t trans_exc_code; /* 0x0a8 */ |
| uint64_t monitor_code; /* 0x0b0 */ |
| uint16_t subchannel_id; /* 0x0b8 */ |
| uint16_t subchannel_nr; /* 0x0ba */ |
| uint32_t io_int_parm; /* 0x0bc */ |
| uint32_t io_int_word; /* 0x0c0 */ |
| uint8_t pad3[0xc8 - 0xc4]; /* 0x0c4 */ |
| uint32_t stfl_fac_list; /* 0x0c8 */ |
| uint8_t pad4[0xe8 - 0xcc]; /* 0x0cc */ |
| uint64_t mcic; /* 0x0e8 */ |
| uint8_t pad5[0xf4 - 0xf0]; /* 0x0f0 */ |
| uint32_t external_damage_code; /* 0x0f4 */ |
| uint64_t failing_storage_address; /* 0x0f8 */ |
| uint8_t pad6[0x110 - 0x100]; /* 0x100 */ |
| uint64_t per_breaking_event_addr; /* 0x110 */ |
| uint8_t pad7[0x120 - 0x118]; /* 0x118 */ |
| PSW restart_old_psw; /* 0x120 */ |
| PSW external_old_psw; /* 0x130 */ |
| PSW svc_old_psw; /* 0x140 */ |
| PSW program_old_psw; /* 0x150 */ |
| PSW mcck_old_psw; /* 0x160 */ |
| PSW io_old_psw; /* 0x170 */ |
| uint8_t pad8[0x1a0 - 0x180]; /* 0x180 */ |
| PSW restart_new_psw; /* 0x1a0 */ |
| PSW external_new_psw; /* 0x1b0 */ |
| PSW svc_new_psw; /* 0x1c0 */ |
| PSW program_new_psw; /* 0x1d0 */ |
| PSW mcck_new_psw; /* 0x1e0 */ |
| PSW io_new_psw; /* 0x1f0 */ |
| PSW return_psw; /* 0x200 */ |
| uint8_t irb[64]; /* 0x210 */ |
| uint64_t sync_enter_timer; /* 0x250 */ |
| uint64_t async_enter_timer; /* 0x258 */ |
| uint64_t exit_timer; /* 0x260 */ |
| uint64_t last_update_timer; /* 0x268 */ |
| uint64_t user_timer; /* 0x270 */ |
| uint64_t system_timer; /* 0x278 */ |
| uint64_t last_update_clock; /* 0x280 */ |
| uint64_t steal_clock; /* 0x288 */ |
| PSW return_mcck_psw; /* 0x290 */ |
| uint8_t pad9[0xc00 - 0x2a0]; /* 0x2a0 */ |
| /* System info area */ |
| uint64_t save_area[16]; /* 0xc00 */ |
| uint8_t pad10[0xd40 - 0xc80]; /* 0xc80 */ |
| uint64_t kernel_stack; /* 0xd40 */ |
| uint64_t thread_info; /* 0xd48 */ |
| uint64_t async_stack; /* 0xd50 */ |
| uint64_t kernel_asce; /* 0xd58 */ |
| uint64_t user_asce; /* 0xd60 */ |
| uint64_t panic_stack; /* 0xd68 */ |
| uint64_t user_exec_asce; /* 0xd70 */ |
| uint8_t pad11[0xdc0 - 0xd78]; /* 0xd78 */ |
| |
| /* SMP info area: defined by DJB */ |
| uint64_t clock_comparator; /* 0xdc0 */ |
| uint64_t ext_call_fast; /* 0xdc8 */ |
| uint64_t percpu_offset; /* 0xdd0 */ |
| uint64_t current_task; /* 0xdd8 */ |
| uint32_t softirq_pending; /* 0xde0 */ |
| uint32_t pad_0x0de4; /* 0xde4 */ |
| uint64_t int_clock; /* 0xde8 */ |
| uint8_t pad12[0xe00 - 0xdf0]; /* 0xdf0 */ |
| |
| /* 0xe00 is used as indicator for dump tools */ |
| /* whether the kernel died with panic() or not */ |
| uint32_t panic_magic; /* 0xe00 */ |
| |
| uint8_t pad13[0x11b0 - 0xe04]; /* 0xe04 */ |
| |
| uint64_t mcesad; /* 0x11B0 */ |
| |
| /* 64 bit extparam used for pfault, diag 250 etc */ |
| uint64_t ext_params2; /* 0x11B8 */ |
| |
| uint8_t pad14[0x1200 - 0x11C0]; /* 0x11C0 */ |
| |
| /* System info area */ |
| |
| uint64_t floating_pt_save_area[16]; /* 0x1200 */ |
| uint64_t gpregs_save_area[16]; /* 0x1280 */ |
| uint32_t st_status_fixed_logout[4]; /* 0x1300 */ |
| uint8_t pad15[0x1318 - 0x1310]; /* 0x1310 */ |
| uint32_t prefixreg_save_area; /* 0x1318 */ |
| uint32_t fpt_creg_save_area; /* 0x131c */ |
| uint8_t pad16[0x1324 - 0x1320]; /* 0x1320 */ |
| uint32_t tod_progreg_save_area; /* 0x1324 */ |
| uint64_t cpu_timer_save_area; /* 0x1328 */ |
| uint64_t clock_comp_save_area; /* 0x1330 */ |
| uint8_t pad17[0x1340 - 0x1338]; /* 0x1338 */ |
| uint32_t access_regs_save_area[16]; /* 0x1340 */ |
| uint64_t cregs_save_area[16]; /* 0x1380 */ |
| |
| /* align to the top of the prefix area */ |
| |
| uint8_t pad18[0x2000 - 0x1400]; /* 0x1400 */ |
| } QEMU_PACKED LowCore; |
| #endif /* CONFIG_USER_ONLY */ |
| |
| #define MAX_ILEN 6 |
| |
| /* While the PoO talks about ILC (a number between 1-3) what is actually |
| stored in LowCore is shifted left one bit (an even between 2-6). As |
| this is the actual length of the insn and therefore more useful, that |
| is what we want to pass around and manipulate. To make sure that we |
| have applied this distinction universally, rename the "ILC" to "ILEN". */ |
| static inline int get_ilen(uint8_t opc) |
| { |
| switch (opc >> 6) { |
| case 0: |
| return 2; |
| case 1: |
| case 2: |
| return 4; |
| default: |
| return 6; |
| } |
| } |
| |
| /* Compute the ATMID field that is stored in the per_perc_atmid lowcore |
| entry when a PER exception is triggered. */ |
| static inline uint8_t get_per_atmid(CPUS390XState *env) |
| { |
| return ((env->psw.mask & PSW_MASK_64) ? (1 << 7) : 0) | |
| (1 << 6) | |
| ((env->psw.mask & PSW_MASK_32) ? (1 << 5) : 0) | |
| ((env->psw.mask & PSW_MASK_DAT) ? (1 << 4) : 0) | |
| ((env->psw.mask & PSW_ASC_SECONDARY) ? (1 << 3) : 0) | |
| ((env->psw.mask & PSW_ASC_ACCREG) ? (1 << 2) : 0); |
| } |
| |
| static inline uint64_t wrap_address(CPUS390XState *env, uint64_t a) |
| { |
| if (!(env->psw.mask & PSW_MASK_64)) { |
| if (!(env->psw.mask & PSW_MASK_32)) { |
| /* 24-Bit mode */ |
| a &= 0x00ffffff; |
| } else { |
| /* 31-Bit mode */ |
| a &= 0x7fffffff; |
| } |
| } |
| return a; |
| } |
| |
| /* CC optimization */ |
| |
| /* Instead of computing the condition codes after each x86 instruction, |
| * QEMU just stores the result (called CC_DST), the type of operation |
| * (called CC_OP) and whatever operands are needed (CC_SRC and possibly |
| * CC_VR). When the condition codes are needed, the condition codes can |
| * be calculated using this information. Condition codes are not generated |
| * if they are only needed for conditional branches. |
| */ |
| enum cc_op { |
| CC_OP_CONST0 = 0, /* CC is 0 */ |
| CC_OP_CONST1, /* CC is 1 */ |
| CC_OP_CONST2, /* CC is 2 */ |
| CC_OP_CONST3, /* CC is 3 */ |
| |
| CC_OP_DYNAMIC, /* CC calculation defined by env->cc_op */ |
| CC_OP_STATIC, /* CC value is env->cc_op */ |
| |
| CC_OP_NZ, /* env->cc_dst != 0 */ |
| CC_OP_LTGT_32, /* signed less/greater than (32bit) */ |
| CC_OP_LTGT_64, /* signed less/greater than (64bit) */ |
| CC_OP_LTUGTU_32, /* unsigned less/greater than (32bit) */ |
| CC_OP_LTUGTU_64, /* unsigned less/greater than (64bit) */ |
| CC_OP_LTGT0_32, /* signed less/greater than 0 (32bit) */ |
| CC_OP_LTGT0_64, /* signed less/greater than 0 (64bit) */ |
| |
| CC_OP_ADD_64, /* overflow on add (64bit) */ |
| CC_OP_ADDU_64, /* overflow on unsigned add (64bit) */ |
| CC_OP_ADDC_64, /* overflow on unsigned add-carry (64bit) */ |
| CC_OP_SUB_64, /* overflow on subtraction (64bit) */ |
| CC_OP_SUBU_64, /* overflow on unsigned subtraction (64bit) */ |
| CC_OP_SUBB_64, /* overflow on unsigned sub-borrow (64bit) */ |
| CC_OP_ABS_64, /* sign eval on abs (64bit) */ |
| CC_OP_NABS_64, /* sign eval on nabs (64bit) */ |
| |
| CC_OP_ADD_32, /* overflow on add (32bit) */ |
| CC_OP_ADDU_32, /* overflow on unsigned add (32bit) */ |
| CC_OP_ADDC_32, /* overflow on unsigned add-carry (32bit) */ |
| CC_OP_SUB_32, /* overflow on subtraction (32bit) */ |
| CC_OP_SUBU_32, /* overflow on unsigned subtraction (32bit) */ |
| CC_OP_SUBB_32, /* overflow on unsigned sub-borrow (32bit) */ |
| CC_OP_ABS_32, /* sign eval on abs (64bit) */ |
| CC_OP_NABS_32, /* sign eval on nabs (64bit) */ |
| |
| CC_OP_COMP_32, /* complement */ |
| CC_OP_COMP_64, /* complement */ |
| |
| CC_OP_TM_32, /* test under mask (32bit) */ |
| CC_OP_TM_64, /* test under mask (64bit) */ |
| |
| CC_OP_NZ_F32, /* FP dst != 0 (32bit) */ |
| CC_OP_NZ_F64, /* FP dst != 0 (64bit) */ |
| CC_OP_NZ_F128, /* FP dst != 0 (128bit) */ |
| |
| CC_OP_ICM, /* insert characters under mask */ |
| CC_OP_SLA_32, /* Calculate shift left signed (32bit) */ |
| CC_OP_SLA_64, /* Calculate shift left signed (64bit) */ |
| CC_OP_FLOGR, /* find leftmost one */ |
| CC_OP_LCBB, /* load count to block boundary */ |
| CC_OP_MAX |
| }; |
| |
| static inline hwaddr decode_basedisp_s(CPUS390XState *env, uint32_t ipb, |
| uint8_t *ar) |
| { |
| hwaddr addr = 0; |
| uint8_t reg; |
| |
| reg = ipb >> 28; |
| if (reg > 0) { |
| addr = env->regs[reg]; |
| } |
| addr += (ipb >> 16) & 0xfff; |
| if (ar) { |
| *ar = reg; |
| } |
| |
| return addr; |
| } |
| |
| /* Base/displacement are at the same locations. */ |
| #define decode_basedisp_rs decode_basedisp_s |
| |
| /* arch_dump.c */ |
| int s390_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs, |
| int cpuid, void *opaque); |
| |
| |
| /* cc_helper.c */ |
| const char *cc_name(enum cc_op cc_op); |
| void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr); |
| uint32_t calc_cc(CPUS390XState *env, uint32_t cc_op, uint64_t src, uint64_t dst, |
| uint64_t vr); |
| |
| |
| /* cpu.c */ |
| #ifndef CONFIG_USER_ONLY |
| unsigned int s390_cpu_halt(S390CPU *cpu); |
| void s390_cpu_unhalt(S390CPU *cpu); |
| #else |
| static inline unsigned int s390_cpu_halt(S390CPU *cpu) |
| { |
| return 0; |
| } |
| |
| static inline void s390_cpu_unhalt(S390CPU *cpu) |
| { |
| } |
| #endif /* CONFIG_USER_ONLY */ |
| |
| |
| /* cpu_models.c */ |
| void s390_cpu_model_register_props(Object *obj); |
| void s390_cpu_model_class_register_props(ObjectClass *oc); |
| void s390_realize_cpu_model(CPUState *cs, Error **errp); |
| ObjectClass *s390_cpu_class_by_name(const char *name); |
| |
| |
| /* excp_helper.c */ |
| void s390x_cpu_debug_excp_handler(CPUState *cs); |
| void s390_cpu_do_interrupt(CPUState *cpu); |
| bool s390_cpu_exec_interrupt(CPUState *cpu, int int_req); |
| int s390_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int size, int rw, |
| int mmu_idx); |
| void s390x_cpu_do_unaligned_access(CPUState *cs, vaddr addr, |
| MMUAccessType access_type, |
| int mmu_idx, uintptr_t retaddr); |
| |
| |
| /* fpu_helper.c */ |
| uint32_t set_cc_nz_f32(float32 v); |
| uint32_t set_cc_nz_f64(float64 v); |
| uint32_t set_cc_nz_f128(float128 v); |
| #define S390_IEEE_MASK_INVALID 0x80 |
| #define S390_IEEE_MASK_DIVBYZERO 0x40 |
| #define S390_IEEE_MASK_OVERFLOW 0x20 |
| #define S390_IEEE_MASK_UNDERFLOW 0x10 |
| #define S390_IEEE_MASK_INEXACT 0x08 |
| #define S390_IEEE_MASK_QUANTUM 0x04 |
| uint8_t s390_softfloat_exc_to_ieee(unsigned int exc); |
| int s390_swap_bfp_rounding_mode(CPUS390XState *env, int m3); |
| void s390_restore_bfp_rounding_mode(CPUS390XState *env, int old_mode); |
| |
| |
| /* gdbstub.c */ |
| int s390_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg); |
| int s390_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); |
| void s390_cpu_gdb_init(CPUState *cs); |
| |
| |
| /* helper.c */ |
| void s390_cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, |
| int flags); |
| hwaddr s390_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); |
| hwaddr s390_cpu_get_phys_addr_debug(CPUState *cpu, vaddr addr); |
| uint64_t get_psw_mask(CPUS390XState *env); |
| void s390_cpu_recompute_watchpoints(CPUState *cs); |
| void s390x_tod_timer(void *opaque); |
| void s390x_cpu_timer(void *opaque); |
| void do_restart_interrupt(CPUS390XState *env); |
| void s390_handle_wait(S390CPU *cpu); |
| #define S390_STORE_STATUS_DEF_ADDR offsetof(LowCore, floating_pt_save_area) |
| int s390_store_status(S390CPU *cpu, hwaddr addr, bool store_arch); |
| int s390_store_adtl_status(S390CPU *cpu, hwaddr addr, hwaddr len); |
| #ifndef CONFIG_USER_ONLY |
| LowCore *cpu_map_lowcore(CPUS390XState *env); |
| void cpu_unmap_lowcore(LowCore *lowcore); |
| #endif /* CONFIG_USER_ONLY */ |
| |
| |
| /* interrupt.c */ |
| void trigger_pgm_exception(CPUS390XState *env, uint32_t code, uint32_t ilen); |
| void cpu_inject_clock_comparator(S390CPU *cpu); |
| void cpu_inject_cpu_timer(S390CPU *cpu); |
| void cpu_inject_emergency_signal(S390CPU *cpu, uint16_t src_cpu_addr); |
| int cpu_inject_external_call(S390CPU *cpu, uint16_t src_cpu_addr); |
| bool s390_cpu_has_io_int(S390CPU *cpu); |
| bool s390_cpu_has_ext_int(S390CPU *cpu); |
| bool s390_cpu_has_mcck_int(S390CPU *cpu); |
| bool s390_cpu_has_int(S390CPU *cpu); |
| bool s390_cpu_has_restart_int(S390CPU *cpu); |
| bool s390_cpu_has_stop_int(S390CPU *cpu); |
| void cpu_inject_restart(S390CPU *cpu); |
| void cpu_inject_stop(S390CPU *cpu); |
| |
| |
| /* ioinst.c */ |
| void ioinst_handle_xsch(S390CPU *cpu, uint64_t reg1, uintptr_t ra); |
| void ioinst_handle_csch(S390CPU *cpu, uint64_t reg1, uintptr_t ra); |
| void ioinst_handle_hsch(S390CPU *cpu, uint64_t reg1, uintptr_t ra); |
| void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, |
| uintptr_t ra); |
| void ioinst_handle_ssch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, |
| uintptr_t ra); |
| void ioinst_handle_stcrw(S390CPU *cpu, uint32_t ipb, uintptr_t ra); |
| void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, |
| uintptr_t ra); |
| int ioinst_handle_tsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, uintptr_t ra); |
| void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb, uintptr_t ra); |
| void ioinst_handle_schm(S390CPU *cpu, uint64_t reg1, uint64_t reg2, |
| uint32_t ipb, uintptr_t ra); |
| void ioinst_handle_rsch(S390CPU *cpu, uint64_t reg1, uintptr_t ra); |
| void ioinst_handle_rchp(S390CPU *cpu, uint64_t reg1, uintptr_t ra); |
| void ioinst_handle_sal(S390CPU *cpu, uint64_t reg1, uintptr_t ra); |
| |
| |
| /* mem_helper.c */ |
| target_ulong mmu_real2abs(CPUS390XState *env, target_ulong raddr); |
| |
| |
| /* mmu_helper.c */ |
| int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc, |
| target_ulong *raddr, int *flags, bool exc); |
| int mmu_translate_real(CPUS390XState *env, target_ulong raddr, int rw, |
| target_ulong *addr, int *flags); |
| |
| |
| /* misc_helper.c */ |
| int handle_diag_288(CPUS390XState *env, uint64_t r1, uint64_t r3); |
| void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3, |
| uintptr_t ra); |
| |
| |
| /* translate.c */ |
| void s390x_translate_init(void); |
| |
| |
| /* sigp.c */ |
| int handle_sigp(CPUS390XState *env, uint8_t order, uint64_t r1, uint64_t r3); |
| void do_stop_interrupt(CPUS390XState *env); |
| |
| #endif /* S390X_INTERNAL_H */ |
