target-s390x/cpu.h

   1 /*
   2  * S/390 virtual CPU header
   3  *
   4  *  Copyright (c) 2009 Ulrich Hecht
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #ifndef CPU_S390X_H
  20 #define CPU_S390X_H
  21
  22 #define TARGET_LONG_BITS 64
  23
  24 #define ELF_MACHINE     EM_S390
  25
  26 #define CPUState struct CPUS390XState
  27
  28 #include "cpu-defs.h"
  29 #define TARGET_PAGE_BITS 12
  30
  31 #define TARGET_PHYS_ADDR_SPACE_BITS 64
  32 #define TARGET_VIRT_ADDR_SPACE_BITS 64
  33
  34 #include "cpu-all.h"
  35
  36 #include "softfloat.h"
  37
  38 #define NB_MMU_MODES 3
  39
  40 #define MMU_MODE0_SUFFIX _primary
  41 #define MMU_MODE1_SUFFIX _secondary
  42 #define MMU_MODE2_SUFFIX _home
  43
  44 #define MMU_USER_IDX 1
  45
  46 #define MAX_EXT_QUEUE 16
  47
  48 typedef struct PSW {
  49     uint64_t mask;
  50     uint64_t addr;
  51 } PSW;
  52
  53 typedef struct ExtQueue {
  54     uint32_t code;
  55     uint32_t param;
  56     uint32_t param64;
  57 } ExtQueue;
  58
  59 typedef struct CPUS390XState {
  60     uint64_t regs[16];  /* GP registers */
  61
  62     uint32_t aregs[16]; /* access registers */
  63
  64     uint32_t fpc;       /* floating-point control register */
  65     CPU_DoubleU fregs[16]; /* FP registers */
  66     float_status fpu_status; /* passed to softfloat lib */
  67
  68     PSW psw;
  69
  70     uint32_t cc_op;
  71     uint64_t cc_src;
  72     uint64_t cc_dst;
  73     uint64_t cc_vr;
  74
  75     uint64_t __excp_addr;
  76     uint64_t psa;
  77
  78     uint32_t int_pgm_code;
  79     uint32_t int_pgm_ilc;
  80
  81     uint32_t int_svc_code;
  82     uint32_t int_svc_ilc;
  83
  84     uint64_t cregs[16]; /* control registers */
  85
  86     int pending_int;
  87     ExtQueue ext_queue[MAX_EXT_QUEUE];
  88
  89     int ext_index;
  90
  91     CPU_COMMON
  92
  93     /* reset does memset(0) up to here */
  94
  95     int cpu_num;
  96     uint8_t *storage_keys;
  97
  98     uint64_t tod_offset;
  99     uint64_t tod_basetime;
 100     QEMUTimer *tod_timer;
 101
 102     QEMUTimer *cpu_timer;
 103 } CPUS390XState;
 104
 105 #if defined(CONFIG_USER_ONLY)
 106 static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
 107 {
 108     if (newsp) {
 109         env->regs[15] = newsp;
 110     }
 111     env->regs[0] = 0;
 112 }
 113 #endif
 114
 115 /* Interrupt Codes */
 116 /* Program Interrupts */
 117 #define PGM_OPERATION                   0x0001
 118 #define PGM_PRIVILEGED                  0x0002
 119 #define PGM_EXECUTE                     0x0003
 120 #define PGM_PROTECTION                  0x0004
 121 #define PGM_ADDRESSING                  0x0005
 122 #define PGM_SPECIFICATION               0x0006
 123 #define PGM_DATA                        0x0007
 124 #define PGM_FIXPT_OVERFLOW              0x0008
 125 #define PGM_FIXPT_DIVIDE                0x0009
 126 #define PGM_DEC_OVERFLOW                0x000a
 127 #define PGM_DEC_DIVIDE                  0x000b
 128 #define PGM_HFP_EXP_OVERFLOW            0x000c
 129 #define PGM_HFP_EXP_UNDERFLOW           0x000d
 130 #define PGM_HFP_SIGNIFICANCE            0x000e
 131 #define PGM_HFP_DIVIDE                  0x000f
 132 #define PGM_SEGMENT_TRANS               0x0010
 133 #define PGM_PAGE_TRANS                  0x0011
 134 #define PGM_TRANS_SPEC                  0x0012
 135 #define PGM_SPECIAL_OP                  0x0013
 136 #define PGM_OPERAND                     0x0015
 137 #define PGM_TRACE_TABLE                 0x0016
 138 #define PGM_SPACE_SWITCH                0x001c
 139 #define PGM_HFP_SQRT                    0x001d
 140 #define PGM_PC_TRANS_SPEC               0x001f
 141 #define PGM_AFX_TRANS                   0x0020
 142 #define PGM_ASX_TRANS                   0x0021
 143 #define PGM_LX_TRANS                    0x0022
 144 #define PGM_EX_TRANS                    0x0023
 145 #define PGM_PRIM_AUTH                   0x0024
 146 #define PGM_SEC_AUTH                    0x0025
 147 #define PGM_ALET_SPEC                   0x0028
 148 #define PGM_ALEN_SPEC                   0x0029
 149 #define PGM_ALE_SEQ                     0x002a
 150 #define PGM_ASTE_VALID                  0x002b
 151 #define PGM_ASTE_SEQ                    0x002c
 152 #define PGM_EXT_AUTH                    0x002d
 153 #define PGM_STACK_FULL                  0x0030
 154 #define PGM_STACK_EMPTY                 0x0031
 155 #define PGM_STACK_SPEC                  0x0032
 156 #define PGM_STACK_TYPE                  0x0033
 157 #define PGM_STACK_OP                    0x0034
 158 #define PGM_ASCE_TYPE                   0x0038
 159 #define PGM_REG_FIRST_TRANS             0x0039
 160 #define PGM_REG_SEC_TRANS               0x003a
 161 #define PGM_REG_THIRD_TRANS             0x003b
 162 #define PGM_MONITOR                     0x0040
 163 #define PGM_PER                         0x0080
 164 #define PGM_CRYPTO                      0x0119
 165
 166 /* External Interrupts */
 167 #define EXT_INTERRUPT_KEY               0x0040
 168 #define EXT_CLOCK_COMP                  0x1004
 169 #define EXT_CPU_TIMER                   0x1005
 170 #define EXT_MALFUNCTION                 0x1200
 171 #define EXT_EMERGENCY                   0x1201
 172 #define EXT_EXTERNAL_CALL               0x1202
 173 #define EXT_ETR                         0x1406
 174 #define EXT_SERVICE                     0x2401
 175 #define EXT_VIRTIO                      0x2603
 176
 177 /* PSW defines */
 178 #undef PSW_MASK_PER
 179 #undef PSW_MASK_DAT
 180 #undef PSW_MASK_IO
 181 #undef PSW_MASK_EXT
 182 #undef PSW_MASK_KEY
 183 #undef PSW_SHIFT_KEY
 184 #undef PSW_MASK_MCHECK
 185 #undef PSW_MASK_WAIT
 186 #undef PSW_MASK_PSTATE
 187 #undef PSW_MASK_ASC
 188 #undef PSW_MASK_CC
 189 #undef PSW_MASK_PM
 190 #undef PSW_MASK_64
 191
 192 #define PSW_MASK_PER            0x4000000000000000ULL
 193 #define PSW_MASK_DAT            0x0400000000000000ULL
 194 #define PSW_MASK_IO             0x0200000000000000ULL
 195 #define PSW_MASK_EXT            0x0100000000000000ULL
 196 #define PSW_MASK_KEY            0x00F0000000000000ULL
 197 #define PSW_SHIFT_KEY           56
 198 #define PSW_MASK_MCHECK         0x0004000000000000ULL
 199 #define PSW_MASK_WAIT           0x0002000000000000ULL
 200 #define PSW_MASK_PSTATE         0x0001000000000000ULL
 201 #define PSW_MASK_ASC            0x0000C00000000000ULL
 202 #define PSW_MASK_CC             0x0000300000000000ULL
 203 #define PSW_MASK_PM             0x00000F0000000000ULL
 204 #define PSW_MASK_64             0x0000000100000000ULL
 205 #define PSW_MASK_32             0x0000000080000000ULL
 206
 207 #undef PSW_ASC_PRIMARY
 208 #undef PSW_ASC_ACCREG
 209 #undef PSW_ASC_SECONDARY
 210 #undef PSW_ASC_HOME
 211
 212 #define PSW_ASC_PRIMARY         0x0000000000000000ULL
 213 #define PSW_ASC_ACCREG          0x0000400000000000ULL
 214 #define PSW_ASC_SECONDARY       0x0000800000000000ULL
 215 #define PSW_ASC_HOME            0x0000C00000000000ULL
 216
 217 /* tb flags */
 218
 219 #define FLAG_MASK_PER           (PSW_MASK_PER    >> 32)
 220 #define FLAG_MASK_DAT           (PSW_MASK_DAT    >> 32)
 221 #define FLAG_MASK_IO            (PSW_MASK_IO     >> 32)
 222 #define FLAG_MASK_EXT           (PSW_MASK_EXT    >> 32)
 223 #define FLAG_MASK_KEY           (PSW_MASK_KEY    >> 32)
 224 #define FLAG_MASK_MCHECK        (PSW_MASK_MCHECK >> 32)
 225 #define FLAG_MASK_WAIT          (PSW_MASK_WAIT   >> 32)
 226 #define FLAG_MASK_PSTATE        (PSW_MASK_PSTATE >> 32)
 227 #define FLAG_MASK_ASC           (PSW_MASK_ASC    >> 32)
 228 #define FLAG_MASK_CC            (PSW_MASK_CC     >> 32)
 229 #define FLAG_MASK_PM            (PSW_MASK_PM     >> 32)
 230 #define FLAG_MASK_64            (PSW_MASK_64     >> 32)
 231 #define FLAG_MASK_32            0x00001000
 232
 233 static inline int cpu_mmu_index (CPUState *env)
 234 {
 235     if (env->psw.mask & PSW_MASK_PSTATE) {
 236         return 1;
 237     }
 238
 239     return 0;
 240 }
 241
 242 static inline void cpu_get_tb_cpu_state(CPUState* env, target_ulong *pc,
 243                                         target_ulong *cs_base, int *flags)
 244 {
 245     *pc = env->psw.addr;
 246     *cs_base = 0;
 247     *flags = ((env->psw.mask >> 32) & ~FLAG_MASK_CC) |
 248              ((env->psw.mask & PSW_MASK_32) ? FLAG_MASK_32 : 0);
 249 }
 250
 251 static inline int get_ilc(uint8_t opc)
 252 {
 253     switch (opc >> 6) {
 254     case 0:
 255         return 1;
 256     case 1:
 257     case 2:
 258         return 2;
 259     case 3:
 260         return 3;
 261     }
 262
 263     return 0;
 264 }
 265
 266 #define ILC_LATER       0x20
 267 #define ILC_LATER_INC   0x21
 268 #define ILC_LATER_INC_2 0x22
 269
 270
 271 CPUS390XState *cpu_s390x_init(const char *cpu_model);
 272 void s390x_translate_init(void);
 273 int cpu_s390x_exec(CPUS390XState *s);
 274 void cpu_s390x_close(CPUS390XState *s);
 275 void do_interrupt (CPUState *env);
 276
 277 /* you can call this signal handler from your SIGBUS and SIGSEGV
 278    signal handlers to inform the virtual CPU of exceptions. non zero
 279    is returned if the signal was handled by the virtual CPU.  */
 280 int cpu_s390x_signal_handler(int host_signum, void *pinfo,
 281                            void *puc);
 282 int cpu_s390x_handle_mmu_fault (CPUS390XState *env, target_ulong address, int rw,
 283                                 int mmu_idx);
 284 #define cpu_handle_mmu_fault cpu_s390x_handle_mmu_fault
 285
 286
 287 #ifndef CONFIG_USER_ONLY
 288 int s390_virtio_hypercall(CPUState *env, uint64_t mem, uint64_t hypercall);
 289
 290 #ifdef CONFIG_KVM
 291 void kvm_s390_interrupt(CPUState *env, int type, uint32_t code);
 292 void kvm_s390_virtio_irq(CPUState *env, int config_change, uint64_t token);
 293 void kvm_s390_interrupt_internal(CPUState *env, int type, uint32_t parm,
 294                                  uint64_t parm64, int vm);
 295 #else
 296 static inline void kvm_s390_interrupt(CPUState *env, int type, uint32_t code)
 297 {
 298 }
 299
 300 static inline void kvm_s390_virtio_irq(CPUState *env, int config_change,
 301                                        uint64_t token)
 302 {
 303 }
 304
 305 static inline void kvm_s390_interrupt_internal(CPUState *env, int type,
 306                                                uint32_t parm, uint64_t parm64,
 307                                                int vm)
 308 {
 309 }
 310 #endif
 311 CPUState *s390_cpu_addr2state(uint16_t cpu_addr);
 312 void s390_add_running_cpu(CPUState *env);
 313 unsigned s390_del_running_cpu(CPUState *env);
 314
 315 /* from s390-virtio-bus */
 316 extern const target_phys_addr_t virtio_size;
 317
 318 #else
 319 static inline void s390_add_running_cpu(CPUState *env)
 320 {
 321 }
 322
 323 static inline unsigned s390_del_running_cpu(CPUState *env)
 324 {
 325     return 0;
 326 }
 327 #endif
 328 void cpu_lock(void);
 329 void cpu_unlock(void);
 330
 331 static inline void cpu_set_tls(CPUS390XState *env, target_ulong newtls)
 332 {
 333     env->aregs[0] = newtls >> 32;
 334     env->aregs[1] = newtls & 0xffffffffULL;
 335 }
 336
 337 #define cpu_init cpu_s390x_init
 338 #define cpu_exec cpu_s390x_exec
 339 #define cpu_gen_code cpu_s390x_gen_code
 340 #define cpu_signal_handler cpu_s390x_signal_handler
 341
 342 #include "exec-all.h"
 343
 344 #ifdef CONFIG_USER_ONLY
 345
 346 #define EXCP_OPEX 1 /* operation exception (sigill) */
 347 #define EXCP_SVC 2 /* supervisor call (syscall) */
 348 #define EXCP_ADDR 5 /* addressing exception */
 349 #define EXCP_SPEC 6 /* specification exception */
 350
 351 #else
 352
 353 #define EXCP_EXT 1 /* external interrupt */
 354 #define EXCP_SVC 2 /* supervisor call (syscall) */
 355 #define EXCP_PGM 3 /* program interruption */
 356
 357 #endif /* CONFIG_USER_ONLY */
 358
 359 #define INTERRUPT_EXT        (1 << 0)
 360 #define INTERRUPT_TOD        (1 << 1)
 361 #define INTERRUPT_CPUTIMER   (1 << 2)
 362
 363 /* Program Status Word.  */
 364 #define S390_PSWM_REGNUM 0
 365 #define S390_PSWA_REGNUM 1
 366 /* General Purpose Registers.  */
 367 #define S390_R0_REGNUM 2
 368 #define S390_R1_REGNUM 3
 369 #define S390_R2_REGNUM 4
 370 #define S390_R3_REGNUM 5
 371 #define S390_R4_REGNUM 6
 372 #define S390_R5_REGNUM 7
 373 #define S390_R6_REGNUM 8
 374 #define S390_R7_REGNUM 9
 375 #define S390_R8_REGNUM 10
 376 #define S390_R9_REGNUM 11
 377 #define S390_R10_REGNUM 12
 378 #define S390_R11_REGNUM 13
 379 #define S390_R12_REGNUM 14
 380 #define S390_R13_REGNUM 15
 381 #define S390_R14_REGNUM 16
 382 #define S390_R15_REGNUM 17
 383 /* Access Registers.  */
 384 #define S390_A0_REGNUM 18
 385 #define S390_A1_REGNUM 19
 386 #define S390_A2_REGNUM 20
 387 #define S390_A3_REGNUM 21
 388 #define S390_A4_REGNUM 22
 389 #define S390_A5_REGNUM 23
 390 #define S390_A6_REGNUM 24
 391 #define S390_A7_REGNUM 25
 392 #define S390_A8_REGNUM 26
 393 #define S390_A9_REGNUM 27
 394 #define S390_A10_REGNUM 28
 395 #define S390_A11_REGNUM 29
 396 #define S390_A12_REGNUM 30
 397 #define S390_A13_REGNUM 31
 398 #define S390_A14_REGNUM 32
 399 #define S390_A15_REGNUM 33
 400 /* Floating Point Control Word.  */
 401 #define S390_FPC_REGNUM 34
 402 /* Floating Point Registers.  */
 403 #define S390_F0_REGNUM 35
 404 #define S390_F1_REGNUM 36
 405 #define S390_F2_REGNUM 37
 406 #define S390_F3_REGNUM 38
 407 #define S390_F4_REGNUM 39
 408 #define S390_F5_REGNUM 40
 409 #define S390_F6_REGNUM 41
 410 #define S390_F7_REGNUM 42
 411 #define S390_F8_REGNUM 43
 412 #define S390_F9_REGNUM 44
 413 #define S390_F10_REGNUM 45
 414 #define S390_F11_REGNUM 46
 415 #define S390_F12_REGNUM 47
 416 #define S390_F13_REGNUM 48
 417 #define S390_F14_REGNUM 49
 418 #define S390_F15_REGNUM 50
 419 /* Total.  */
 420 #define S390_NUM_REGS 51
 421
 422 /* Pseudo registers -- PC and condition code.  */
 423 #define S390_PC_REGNUM S390_NUM_REGS
 424 #define S390_CC_REGNUM (S390_NUM_REGS+1)
 425 #define S390_NUM_PSEUDO_REGS 2
 426 #define S390_NUM_TOTAL_REGS (S390_NUM_REGS+2)
 427
 428
 429
 430 /* Program Status Word.  */
 431 #define S390_PSWM_REGNUM 0
 432 #define S390_PSWA_REGNUM 1
 433 /* General Purpose Registers.  */
 434 #define S390_R0_REGNUM 2
 435 #define S390_R1_REGNUM 3
 436 #define S390_R2_REGNUM 4
 437 #define S390_R3_REGNUM 5
 438 #define S390_R4_REGNUM 6
 439 #define S390_R5_REGNUM 7
 440 #define S390_R6_REGNUM 8
 441 #define S390_R7_REGNUM 9
 442 #define S390_R8_REGNUM 10
 443 #define S390_R9_REGNUM 11
 444 #define S390_R10_REGNUM 12
 445 #define S390_R11_REGNUM 13
 446 #define S390_R12_REGNUM 14
 447 #define S390_R13_REGNUM 15
 448 #define S390_R14_REGNUM 16
 449 #define S390_R15_REGNUM 17
 450 /* Access Registers.  */
 451 #define S390_A0_REGNUM 18
 452 #define S390_A1_REGNUM 19
 453 #define S390_A2_REGNUM 20
 454 #define S390_A3_REGNUM 21
 455 #define S390_A4_REGNUM 22
 456 #define S390_A5_REGNUM 23
 457 #define S390_A6_REGNUM 24
 458 #define S390_A7_REGNUM 25
 459 #define S390_A8_REGNUM 26
 460 #define S390_A9_REGNUM 27
 461 #define S390_A10_REGNUM 28
 462 #define S390_A11_REGNUM 29
 463 #define S390_A12_REGNUM 30
 464 #define S390_A13_REGNUM 31
 465 #define S390_A14_REGNUM 32
 466 #define S390_A15_REGNUM 33
 467 /* Floating Point Control Word.  */
 468 #define S390_FPC_REGNUM 34
 469 /* Floating Point Registers.  */
 470 #define S390_F0_REGNUM 35
 471 #define S390_F1_REGNUM 36
 472 #define S390_F2_REGNUM 37
 473 #define S390_F3_REGNUM 38
 474 #define S390_F4_REGNUM 39
 475 #define S390_F5_REGNUM 40
 476 #define S390_F6_REGNUM 41
 477 #define S390_F7_REGNUM 42
 478 #define S390_F8_REGNUM 43
 479 #define S390_F9_REGNUM 44
 480 #define S390_F10_REGNUM 45
 481 #define S390_F11_REGNUM 46
 482 #define S390_F12_REGNUM 47
 483 #define S390_F13_REGNUM 48
 484 #define S390_F14_REGNUM 49
 485 #define S390_F15_REGNUM 50
 486 /* Total.  */
 487 #define S390_NUM_REGS 51
 488
 489 /* Pseudo registers -- PC and condition code.  */
 490 #define S390_PC_REGNUM S390_NUM_REGS
 491 #define S390_CC_REGNUM (S390_NUM_REGS+1)
 492 #define S390_NUM_PSEUDO_REGS 2
 493 #define S390_NUM_TOTAL_REGS (S390_NUM_REGS+2)
 494
 495 /* CC optimization */
 496
 497 enum cc_op {
 498     CC_OP_CONST0 = 0,           /* CC is 0 */
 499     CC_OP_CONST1,               /* CC is 1 */
 500     CC_OP_CONST2,               /* CC is 2 */
 501     CC_OP_CONST3,               /* CC is 3 */
 502
 503     CC_OP_DYNAMIC,              /* CC calculation defined by env->cc_op */
 504     CC_OP_STATIC,               /* CC value is env->cc_op */
 505
 506     CC_OP_NZ,                   /* env->cc_dst != 0 */
 507     CC_OP_LTGT_32,              /* signed less/greater than (32bit) */
 508     CC_OP_LTGT_64,              /* signed less/greater than (64bit) */
 509     CC_OP_LTUGTU_32,            /* unsigned less/greater than (32bit) */
 510     CC_OP_LTUGTU_64,            /* unsigned less/greater than (64bit) */
 511     CC_OP_LTGT0_32,             /* signed less/greater than 0 (32bit) */
 512     CC_OP_LTGT0_64,             /* signed less/greater than 0 (64bit) */
 513
 514     CC_OP_ADD_64,               /* overflow on add (64bit) */
 515     CC_OP_ADDU_64,              /* overflow on unsigned add (64bit) */
 516     CC_OP_SUB_64,               /* overflow on subtraction (64bit) */
 517     CC_OP_SUBU_64,              /* overflow on unsigned subtraction (64bit) */
 518     CC_OP_ABS_64,               /* sign eval on abs (64bit) */
 519     CC_OP_NABS_64,              /* sign eval on nabs (64bit) */
 520
 521     CC_OP_ADD_32,               /* overflow on add (32bit) */
 522     CC_OP_ADDU_32,              /* overflow on unsigned add (32bit) */
 523     CC_OP_SUB_32,               /* overflow on subtraction (32bit) */
 524     CC_OP_SUBU_32,              /* overflow on unsigned subtraction (32bit) */
 525     CC_OP_ABS_32,               /* sign eval on abs (64bit) */
 526     CC_OP_NABS_32,              /* sign eval on nabs (64bit) */
 527
 528     CC_OP_COMP_32,              /* complement */
 529     CC_OP_COMP_64,              /* complement */
 530
 531     CC_OP_TM_32,                /* test under mask (32bit) */
 532     CC_OP_TM_64,                /* test under mask (64bit) */
 533
 534     CC_OP_LTGT_F32,             /* FP compare (32bit) */
 535     CC_OP_LTGT_F64,             /* FP compare (64bit) */
 536
 537     CC_OP_NZ_F32,               /* FP dst != 0 (32bit) */
 538     CC_OP_NZ_F64,               /* FP dst != 0 (64bit) */
 539
 540     CC_OP_ICM,                  /* insert characters under mask */
 541     CC_OP_SLAG,                 /* Calculate shift left signed */
 542     CC_OP_MAX
 543 };
 544
 545 static const char *cc_names[] = {
 546     [CC_OP_CONST0]    = "CC_OP_CONST0",
 547     [CC_OP_CONST1]    = "CC_OP_CONST1",
 548     [CC_OP_CONST2]    = "CC_OP_CONST2",
 549     [CC_OP_CONST3]    = "CC_OP_CONST3",
 550     [CC_OP_DYNAMIC]   = "CC_OP_DYNAMIC",
 551     [CC_OP_STATIC]    = "CC_OP_STATIC",
 552     [CC_OP_NZ]        = "CC_OP_NZ",
 553     [CC_OP_LTGT_32]   = "CC_OP_LTGT_32",
 554     [CC_OP_LTGT_64]   = "CC_OP_LTGT_64",
 555     [CC_OP_LTUGTU_32] = "CC_OP_LTUGTU_32",
 556     [CC_OP_LTUGTU_64] = "CC_OP_LTUGTU_64",
 557     [CC_OP_LTGT0_32]  = "CC_OP_LTGT0_32",
 558     [CC_OP_LTGT0_64]  = "CC_OP_LTGT0_64",
 559     [CC_OP_ADD_64]    = "CC_OP_ADD_64",
 560     [CC_OP_ADDU_64]   = "CC_OP_ADDU_64",
 561     [CC_OP_SUB_64]    = "CC_OP_SUB_64",
 562     [CC_OP_SUBU_64]   = "CC_OP_SUBU_64",
 563     [CC_OP_ABS_64]    = "CC_OP_ABS_64",
 564     [CC_OP_NABS_64]   = "CC_OP_NABS_64",
 565     [CC_OP_ADD_32]    = "CC_OP_ADD_32",
 566     [CC_OP_ADDU_32]   = "CC_OP_ADDU_32",
 567     [CC_OP_SUB_32]    = "CC_OP_SUB_32",
 568     [CC_OP_SUBU_32]   = "CC_OP_SUBU_32",
 569     [CC_OP_ABS_32]    = "CC_OP_ABS_32",
 570     [CC_OP_NABS_32]   = "CC_OP_NABS_32",
 571     [CC_OP_COMP_32]   = "CC_OP_COMP_32",
 572     [CC_OP_COMP_64]   = "CC_OP_COMP_64",
 573     [CC_OP_TM_32]     = "CC_OP_TM_32",
 574     [CC_OP_TM_64]     = "CC_OP_TM_64",
 575     [CC_OP_LTGT_F32]  = "CC_OP_LTGT_F32",
 576     [CC_OP_LTGT_F64]  = "CC_OP_LTGT_F64",
 577     [CC_OP_NZ_F32]    = "CC_OP_NZ_F32",
 578     [CC_OP_NZ_F64]    = "CC_OP_NZ_F64",
 579     [CC_OP_ICM]       = "CC_OP_ICM",
 580     [CC_OP_SLAG]      = "CC_OP_SLAG",
 581 };
 582
 583 static inline const char *cc_name(int cc_op)
 584 {
 585     return cc_names[cc_op];
 586 }
 587
 588 /* SCLP PV interface defines */
 589 #define SCLP_CMDW_READ_SCP_INFO         0x00020001
 590 #define SCLP_CMDW_READ_SCP_INFO_FORCED  0x00120001
 591
 592 #define SCP_LENGTH                      0x00
 593 #define SCP_FUNCTION_CODE               0x02
 594 #define SCP_CONTROL_MASK                0x03
 595 #define SCP_RESPONSE_CODE               0x06
 596 #define SCP_MEM_CODE                    0x08
 597 #define SCP_INCREMENT                   0x0a
 598
 599 typedef struct LowCore
 600 {
 601     /* prefix area: defined by architecture */
 602     uint32_t        ccw1[2];                  /* 0x000 */
 603     uint32_t        ccw2[4];                  /* 0x008 */
 604     uint8_t         pad1[0x80-0x18];          /* 0x018 */
 605     uint32_t        ext_params;               /* 0x080 */
 606     uint16_t        cpu_addr;                 /* 0x084 */
 607     uint16_t        ext_int_code;             /* 0x086 */
 608     uint16_t        svc_ilc;                  /* 0x088 */
 609     uint16_t        svc_code;                 /* 0x08a */
 610     uint16_t        pgm_ilc;                  /* 0x08c */
 611     uint16_t        pgm_code;                 /* 0x08e */
 612     uint32_t        data_exc_code;            /* 0x090 */
 613     uint16_t        mon_class_num;            /* 0x094 */
 614     uint16_t        per_perc_atmid;           /* 0x096 */
 615     uint64_t        per_address;              /* 0x098 */
 616     uint8_t         exc_access_id;            /* 0x0a0 */
 617     uint8_t         per_access_id;            /* 0x0a1 */
 618     uint8_t         op_access_id;             /* 0x0a2 */
 619     uint8_t         ar_access_id;             /* 0x0a3 */
 620     uint8_t         pad2[0xA8-0xA4];          /* 0x0a4 */
 621     uint64_t        trans_exc_code;           /* 0x0a8 */
 622     uint64_t        monitor_code;             /* 0x0b0 */
 623     uint16_t        subchannel_id;            /* 0x0b8 */
 624     uint16_t        subchannel_nr;            /* 0x0ba */
 625     uint32_t        io_int_parm;              /* 0x0bc */
 626     uint32_t        io_int_word;              /* 0x0c0 */
 627     uint8_t         pad3[0xc8-0xc4];          /* 0x0c4 */
 628     uint32_t        stfl_fac_list;            /* 0x0c8 */
 629     uint8_t         pad4[0xe8-0xcc];          /* 0x0cc */
 630     uint32_t        mcck_interruption_code[2]; /* 0x0e8 */
 631     uint8_t         pad5[0xf4-0xf0];          /* 0x0f0 */
 632     uint32_t        external_damage_code;     /* 0x0f4 */
 633     uint64_t        failing_storage_address;  /* 0x0f8 */
 634     uint8_t         pad6[0x120-0x100];        /* 0x100 */
 635     PSW             restart_old_psw;          /* 0x120 */
 636     PSW             external_old_psw;         /* 0x130 */
 637     PSW             svc_old_psw;              /* 0x140 */
 638     PSW             program_old_psw;          /* 0x150 */
 639     PSW             mcck_old_psw;             /* 0x160 */
 640     PSW             io_old_psw;               /* 0x170 */
 641     uint8_t         pad7[0x1a0-0x180];        /* 0x180 */
 642     PSW             restart_psw;              /* 0x1a0 */
 643     PSW             external_new_psw;         /* 0x1b0 */
 644     PSW             svc_new_psw;              /* 0x1c0 */
 645     PSW             program_new_psw;          /* 0x1d0 */
 646     PSW             mcck_new_psw;             /* 0x1e0 */
 647     PSW             io_new_psw;               /* 0x1f0 */
 648     PSW             return_psw;               /* 0x200 */
 649     uint8_t         irb[64];                  /* 0x210 */
 650     uint64_t        sync_enter_timer;         /* 0x250 */
 651     uint64_t        async_enter_timer;        /* 0x258 */
 652     uint64_t        exit_timer;               /* 0x260 */
 653     uint64_t        last_update_timer;        /* 0x268 */
 654     uint64_t        user_timer;               /* 0x270 */
 655     uint64_t        system_timer;             /* 0x278 */
 656     uint64_t        last_update_clock;        /* 0x280 */
 657     uint64_t        steal_clock;              /* 0x288 */
 658     PSW             return_mcck_psw;          /* 0x290 */
 659     uint8_t         pad8[0xc00-0x2a0];        /* 0x2a0 */
 660     /* System info area */
 661     uint64_t        save_area[16];            /* 0xc00 */
 662     uint8_t         pad9[0xd40-0xc80];        /* 0xc80 */
 663     uint64_t        kernel_stack;             /* 0xd40 */
 664     uint64_t        thread_info;              /* 0xd48 */
 665     uint64_t        async_stack;              /* 0xd50 */
 666     uint64_t        kernel_asce;              /* 0xd58 */
 667     uint64_t        user_asce;                /* 0xd60 */
 668     uint64_t        panic_stack;              /* 0xd68 */
 669     uint64_t        user_exec_asce;           /* 0xd70 */
 670     uint8_t         pad10[0xdc0-0xd78];       /* 0xd78 */
 671
 672     /* SMP info area: defined by DJB */
 673     uint64_t        clock_comparator;         /* 0xdc0 */
 674     uint64_t        ext_call_fast;            /* 0xdc8 */
 675     uint64_t        percpu_offset;            /* 0xdd0 */
 676     uint64_t        current_task;             /* 0xdd8 */
 677     uint32_t        softirq_pending;          /* 0xde0 */
 678     uint32_t        pad_0x0de4;               /* 0xde4 */
 679     uint64_t        int_clock;                /* 0xde8 */
 680     uint8_t         pad12[0xe00-0xdf0];       /* 0xdf0 */
 681
 682     /* 0xe00 is used as indicator for dump tools */
 683     /* whether the kernel died with panic() or not */
 684     uint32_t        panic_magic;              /* 0xe00 */
 685
 686     uint8_t         pad13[0x11b8-0xe04];      /* 0xe04 */
 687
 688     /* 64 bit extparam used for pfault, diag 250 etc  */
 689     uint64_t        ext_params2;               /* 0x11B8 */
 690
 691     uint8_t         pad14[0x1200-0x11C0];      /* 0x11C0 */
 692
 693     /* System info area */
 694
 695     uint64_t        floating_pt_save_area[16]; /* 0x1200 */
 696     uint64_t        gpregs_save_area[16];      /* 0x1280 */
 697     uint32_t        st_status_fixed_logout[4]; /* 0x1300 */
 698     uint8_t         pad15[0x1318-0x1310];      /* 0x1310 */
 699     uint32_t        prefixreg_save_area;       /* 0x1318 */
 700     uint32_t        fpt_creg_save_area;        /* 0x131c */
 701     uint8_t         pad16[0x1324-0x1320];      /* 0x1320 */
 702     uint32_t        tod_progreg_save_area;     /* 0x1324 */
 703     uint32_t        cpu_timer_save_area[2];    /* 0x1328 */
 704     uint32_t        clock_comp_save_area[2];   /* 0x1330 */
 705     uint8_t         pad17[0x1340-0x1338];      /* 0x1338 */
 706     uint32_t        access_regs_save_area[16]; /* 0x1340 */
 707     uint64_t        cregs_save_area[16];       /* 0x1380 */
 708
 709     /* align to the top of the prefix area */
 710
 711     uint8_t         pad18[0x2000-0x1400];      /* 0x1400 */
 712 } QEMU_PACKED LowCore;
 713
 714 /* STSI */
 715 #define STSI_LEVEL_MASK         0x00000000f0000000ULL
 716 #define STSI_LEVEL_CURRENT      0x0000000000000000ULL
 717 #define STSI_LEVEL_1            0x0000000010000000ULL
 718 #define STSI_LEVEL_2            0x0000000020000000ULL
 719 #define STSI_LEVEL_3            0x0000000030000000ULL
 720 #define STSI_R0_RESERVED_MASK   0x000000000fffff00ULL
 721 #define STSI_R0_SEL1_MASK       0x00000000000000ffULL
 722 #define STSI_R1_RESERVED_MASK   0x00000000ffff0000ULL
 723 #define STSI_R1_SEL2_MASK       0x000000000000ffffULL
 724
 725 /* Basic Machine Configuration */
 726 struct sysib_111 {
 727     uint32_t res1[8];
 728     uint8_t  manuf[16];
 729     uint8_t  type[4];
 730     uint8_t  res2[12];
 731     uint8_t  model[16];
 732     uint8_t  sequence[16];
 733     uint8_t  plant[4];
 734     uint8_t  res3[156];
 735 };
 736
 737 /* Basic Machine CPU */
 738 struct sysib_121 {
 739     uint32_t res1[80];
 740     uint8_t  sequence[16];
 741     uint8_t  plant[4];
 742     uint8_t  res2[2];
 743     uint16_t cpu_addr;
 744     uint8_t  res3[152];
 745 };
 746
 747 /* Basic Machine CPUs */
 748 struct sysib_122 {
 749     uint8_t res1[32];
 750     uint32_t capability;
 751     uint16_t total_cpus;
 752     uint16_t active_cpus;
 753     uint16_t standby_cpus;
 754     uint16_t reserved_cpus;
 755     uint16_t adjustments[2026];
 756 };
 757
 758 /* LPAR CPU */
 759 struct sysib_221 {
 760     uint32_t res1[80];
 761     uint8_t  sequence[16];
 762     uint8_t  plant[4];
 763     uint16_t cpu_id;
 764     uint16_t cpu_addr;
 765     uint8_t  res3[152];
 766 };
 767
 768 /* LPAR CPUs */
 769 struct sysib_222 {
 770     uint32_t res1[32];
 771     uint16_t lpar_num;
 772     uint8_t  res2;
 773     uint8_t  lcpuc;
 774     uint16_t total_cpus;
 775     uint16_t conf_cpus;
 776     uint16_t standby_cpus;
 777     uint16_t reserved_cpus;
 778     uint8_t  name[8];
 779     uint32_t caf;
 780     uint8_t  res3[16];
 781     uint16_t dedicated_cpus;
 782     uint16_t shared_cpus;
 783     uint8_t  res4[180];
 784 };
 785
 786 /* VM CPUs */
 787 struct sysib_322 {
 788     uint8_t  res1[31];
 789     uint8_t  count;
 790     struct {
 791         uint8_t  res2[4];
 792         uint16_t total_cpus;
 793         uint16_t conf_cpus;
 794         uint16_t standby_cpus;
 795         uint16_t reserved_cpus;
 796         uint8_t  name[8];
 797         uint32_t caf;
 798         uint8_t  cpi[16];
 799         uint8_t  res3[24];
 800     } vm[8];
 801     uint8_t res4[3552];
 802 };
 803
 804 /* MMU defines */
 805 #define _ASCE_ORIGIN            ~0xfffULL /* segment table origin             */
 806 #define _ASCE_SUBSPACE          0x200     /* subspace group control           */
 807 #define _ASCE_PRIVATE_SPACE     0x100     /* private space control            */
 808 #define _ASCE_ALT_EVENT         0x80      /* storage alteration event control */
 809 #define _ASCE_SPACE_SWITCH      0x40      /* space switch event               */
 810 #define _ASCE_REAL_SPACE        0x20      /* real space control               */
 811 #define _ASCE_TYPE_MASK         0x0c      /* asce table type mask             */
 812 #define _ASCE_TYPE_REGION1      0x0c      /* region first table type          */
 813 #define _ASCE_TYPE_REGION2      0x08      /* region second table type         */
 814 #define _ASCE_TYPE_REGION3      0x04      /* region third table type          */
 815 #define _ASCE_TYPE_SEGMENT      0x00      /* segment table type               */
 816 #define _ASCE_TABLE_LENGTH      0x03      /* region table length              */
 817
 818 #define _REGION_ENTRY_ORIGIN    ~0xfffULL /* region/segment table origin      */
 819 #define _REGION_ENTRY_INV       0x20      /* invalid region table entry       */
 820 #define _REGION_ENTRY_TYPE_MASK 0x0c      /* region/segment table type mask   */
 821 #define _REGION_ENTRY_TYPE_R1   0x0c      /* region first table type          */
 822 #define _REGION_ENTRY_TYPE_R2   0x08      /* region second table type         */
 823 #define _REGION_ENTRY_TYPE_R3   0x04      /* region third table type          */
 824 #define _REGION_ENTRY_LENGTH    0x03      /* region third length              */
 825
 826 #define _SEGMENT_ENTRY_ORIGIN   ~0x7ffULL /* segment table origin             */
 827 #define _SEGMENT_ENTRY_RO       0x200     /* page protection bit              */
 828 #define _SEGMENT_ENTRY_INV      0x20      /* invalid segment table entry      */
 829
 830 #define _PAGE_RO        0x200            /* HW read-only bit  */
 831 #define _PAGE_INVALID   0x400            /* HW invalid bit    */
 832
 833 #define SK_C                    (0x1 << 1)
 834 #define SK_R                    (0x1 << 2)
 835 #define SK_F                    (0x1 << 3)
 836 #define SK_ACC_MASK             (0xf << 4)
 837
 838
 839 /* EBCDIC handling */
 840 static const uint8_t ebcdic2ascii[] = {
 841     0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F,
 842     0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
 843     0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07,
 844     0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
 845     0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B,
 846     0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07,
 847     0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
 848     0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
 849     0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
 850     0x87, 0xA4, 0x5B, 0x2E, 0x3C, 0x28, 0x2B, 0x21,
 851     0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
 852     0x8D, 0xE1, 0x5D, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
 853     0x2D, 0x2F, 0x07, 0x8E, 0x07, 0x07, 0x07, 0x8F,
 854     0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
 855     0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
 856     0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
 857     0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
 858     0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
 859     0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
 860     0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
 861     0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
 862     0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07,
 863     0x9B, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
 864     0xAB, 0x07, 0xAA, 0x7C, 0x07, 0x07, 0x07, 0x07,
 865     0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
 866     0x48, 0x49, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
 867     0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
 868     0x51, 0x52, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
 869     0x5C, 0xF6, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
 870     0x59, 0x5A, 0xFD, 0x07, 0x99, 0x07, 0x07, 0x07,
 871     0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
 872     0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07,
 873 };
 874
 875 static const uint8_t ascii2ebcdic [] = {
 876     0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
 877     0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
 878     0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26,
 879     0x18, 0x19, 0x3F, 0x27, 0x22, 0x1D, 0x1E, 0x1F,
 880     0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
 881     0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
 882     0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
 883     0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
 884     0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
 885     0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
 886     0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
 887     0xE7, 0xE8, 0xE9, 0xBA, 0xE0, 0xBB, 0xB0, 0x6D,
 888     0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
 889     0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
 890     0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
 891     0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
 892     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 893     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 894     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 895     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 896     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 897     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 898     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 899     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 900     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 901     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 902     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 903     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 904     0x3F, 0x59, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 905     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 906     0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 907     0x90, 0x3F, 0x3F, 0x3F, 0x3F, 0xEA, 0x3F, 0xFF
 908 };
 909
 910 static inline void ebcdic_put(uint8_t *p, const char *ascii, int len)
 911 {
 912     int i;
 913
 914     for (i = 0; i < len; i++) {
 915         p[i] = ascii2ebcdic[(int)ascii[i]];
 916     }
 917 }
 918
 919 #define SIGP_SENSE             0x01
 920 #define SIGP_EXTERNAL_CALL     0x02
 921 #define SIGP_EMERGENCY         0x03
 922 #define SIGP_START             0x04
 923 #define SIGP_STOP              0x05
 924 #define SIGP_RESTART           0x06
 925 #define SIGP_STOP_STORE_STATUS 0x09
 926 #define SIGP_INITIAL_CPU_RESET 0x0b
 927 #define SIGP_CPU_RESET         0x0c
 928 #define SIGP_SET_PREFIX        0x0d
 929 #define SIGP_STORE_STATUS_ADDR 0x0e
 930 #define SIGP_SET_ARCH          0x12
 931
 932 /* cpu status bits */
 933 #define SIGP_STAT_EQUIPMENT_CHECK   0x80000000UL
 934 #define SIGP_STAT_INCORRECT_STATE   0x00000200UL
 935 #define SIGP_STAT_INVALID_PARAMETER 0x00000100UL
 936 #define SIGP_STAT_EXT_CALL_PENDING  0x00000080UL
 937 #define SIGP_STAT_STOPPED           0x00000040UL
 938 #define SIGP_STAT_OPERATOR_INTERV   0x00000020UL
 939 #define SIGP_STAT_CHECK_STOP        0x00000010UL
 940 #define SIGP_STAT_INOPERATIVE       0x00000004UL
 941 #define SIGP_STAT_INVALID_ORDER     0x00000002UL
 942 #define SIGP_STAT_RECEIVER_CHECK    0x00000001UL
 943
 944 void load_psw(CPUState *env, uint64_t mask, uint64_t addr);
 945 int mmu_translate(CPUState *env, target_ulong vaddr, int rw, uint64_t asc,
 946                   target_ulong *raddr, int *flags);
 947 int sclp_service_call(CPUState *env, uint32_t sccb, uint64_t code);
 948 uint32_t calc_cc(CPUState *env, uint32_t cc_op, uint64_t src, uint64_t dst,
 949                  uint64_t vr);
 950
 951 #define TARGET_HAS_ICE 1
 952
 953 /* The value of the TOD clock for 1.1.1970. */
 954 #define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
 955
 956 /* Converts ns to s390's clock format */
 957 static inline uint64_t time2tod(uint64_t ns) {
 958     return (ns << 9) / 125;
 959 }
 960
 961 static inline void cpu_inject_ext(CPUState *env, uint32_t code, uint32_t param,
 962                                   uint64_t param64)
 963 {
 964     if (env->ext_index == MAX_EXT_QUEUE - 1) {
 965         /* ugh - can't queue anymore. Let's drop. */
 966         return;
 967     }
 968
 969     env->ext_index++;
 970     assert(env->ext_index < MAX_EXT_QUEUE);
 971
 972     env->ext_queue[env->ext_index].code = code;
 973     env->ext_queue[env->ext_index].param = param;
 974     env->ext_queue[env->ext_index].param64 = param64;
 975
 976     env->pending_int |= INTERRUPT_EXT;
 977     cpu_interrupt(env, CPU_INTERRUPT_HARD);
 978 }
 979
 980 static inline bool cpu_has_work(CPUState *env)
 981 {
 982     return (env->interrupt_request & CPU_INTERRUPT_HARD) &&
 983         (env->psw.mask & PSW_MASK_EXT);
 984 }
 985
 986 static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock* tb)
 987 {
 988     env->psw.addr = tb->pc;
 989 }
 990
 991 #endif