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  * Contributions after 2012-10-29 are licensed under the terms of the
  17  * GNU GPL, version 2 or (at your option) any later version.
  18  *
  19  * You should have received a copy of the GNU (Lesser) General Public
  20  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  21  */
  22 #ifndef CPU_S390X_H
  23 #define CPU_S390X_H
  24
  25 #include "config.h"
  26 #include "qemu-common.h"
  27
  28 #define TARGET_LONG_BITS 64
  29
  30 #define ELF_MACHINE     EM_S390
  31 #define ELF_MACHINE_UNAME "S390X"
  32
  33 #define CPUArchState struct CPUS390XState
  34
  35 #include "exec/cpu-defs.h"
  36 #define TARGET_PAGE_BITS 12
  37
  38 #define TARGET_PHYS_ADDR_SPACE_BITS 64
  39 #define TARGET_VIRT_ADDR_SPACE_BITS 64
  40
  41 #include "exec/cpu-all.h"
  42
  43 #include "fpu/softfloat.h"
  44
  45 #define NB_MMU_MODES 3
  46
  47 #define MMU_MODE0_SUFFIX _primary
  48 #define MMU_MODE1_SUFFIX _secondary
  49 #define MMU_MODE2_SUFFIX _home
  50
  51 #define MMU_USER_IDX 1
  52
  53 #define MAX_EXT_QUEUE 16
  54 #define MAX_IO_QUEUE 16
  55 #define MAX_MCHK_QUEUE 16
  56
  57 #define PSW_MCHK_MASK 0x0004000000000000
  58 #define PSW_IO_MASK 0x0200000000000000
  59
  60 typedef struct PSW {
  61     uint64_t mask;
  62     uint64_t addr;
  63 } PSW;
  64
  65 typedef struct ExtQueue {
  66     uint32_t code;
  67     uint32_t param;
  68     uint32_t param64;
  69 } ExtQueue;
  70
  71 typedef struct IOIntQueue {
  72     uint16_t id;
  73     uint16_t nr;
  74     uint32_t parm;
  75     uint32_t word;
  76 } IOIntQueue;
  77
  78 typedef struct MchkQueue {
  79     uint16_t type;
  80 } MchkQueue;
  81
  82 typedef struct CPUS390XState {
  83     uint64_t regs[16];     /* GP registers */
  84     CPU_DoubleU fregs[16]; /* FP registers */
  85     uint32_t aregs[16];    /* access registers */
  86
  87     uint32_t fpc;          /* floating-point control register */
  88     uint32_t cc_op;
  89
  90     float_status fpu_status; /* passed to softfloat lib */
  91
  92     /* The low part of a 128-bit return, or remainder of a divide.  */
  93     uint64_t retxl;
  94
  95     PSW psw;
  96
  97     uint64_t cc_src;
  98     uint64_t cc_dst;
  99     uint64_t cc_vr;
 100
 101     uint64_t __excp_addr;
 102     uint64_t psa;
 103
 104     uint32_t int_pgm_code;
 105     uint32_t int_pgm_ilen;
 106
 107     uint32_t int_svc_code;
 108     uint32_t int_svc_ilen;
 109
 110     uint64_t cregs[16]; /* control registers */
 111
 112     ExtQueue ext_queue[MAX_EXT_QUEUE];
 113     IOIntQueue io_queue[MAX_IO_QUEUE][8];
 114     MchkQueue mchk_queue[MAX_MCHK_QUEUE];
 115
 116     int pending_int;
 117     int ext_index;
 118     int io_index[8];
 119     int mchk_index;
 120
 121     uint64_t ckc;
 122     uint64_t cputm;
 123     uint32_t todpr;
 124
 125     uint64_t pfault_token;
 126     uint64_t pfault_compare;
 127     uint64_t pfault_select;
 128
 129     CPU_COMMON
 130
 131     /* reset does memset(0) up to here */
 132
 133     int cpu_num;
 134     uint8_t *storage_keys;
 135
 136     uint64_t tod_offset;
 137     uint64_t tod_basetime;
 138     QEMUTimer *tod_timer;
 139
 140     QEMUTimer *cpu_timer;
 141 } CPUS390XState;
 142
 143 #include "cpu-qom.h"
 144 #include <sysemu/kvm.h>
 145
 146 /* distinguish between 24 bit and 31 bit addressing */
 147 #define HIGH_ORDER_BIT 0x80000000
 148
 149 /* Interrupt Codes */
 150 /* Program Interrupts */
 151 #define PGM_OPERATION                   0x0001
 152 #define PGM_PRIVILEGED                  0x0002
 153 #define PGM_EXECUTE                     0x0003
 154 #define PGM_PROTECTION                  0x0004
 155 #define PGM_ADDRESSING                  0x0005
 156 #define PGM_SPECIFICATION               0x0006
 157 #define PGM_DATA                        0x0007
 158 #define PGM_FIXPT_OVERFLOW              0x0008
 159 #define PGM_FIXPT_DIVIDE                0x0009
 160 #define PGM_DEC_OVERFLOW                0x000a
 161 #define PGM_DEC_DIVIDE                  0x000b
 162 #define PGM_HFP_EXP_OVERFLOW            0x000c
 163 #define PGM_HFP_EXP_UNDERFLOW           0x000d
 164 #define PGM_HFP_SIGNIFICANCE            0x000e
 165 #define PGM_HFP_DIVIDE                  0x000f
 166 #define PGM_SEGMENT_TRANS               0x0010
 167 #define PGM_PAGE_TRANS                  0x0011
 168 #define PGM_TRANS_SPEC                  0x0012
 169 #define PGM_SPECIAL_OP                  0x0013
 170 #define PGM_OPERAND                     0x0015
 171 #define PGM_TRACE_TABLE                 0x0016
 172 #define PGM_SPACE_SWITCH                0x001c
 173 #define PGM_HFP_SQRT                    0x001d
 174 #define PGM_PC_TRANS_SPEC               0x001f
 175 #define PGM_AFX_TRANS                   0x0020
 176 #define PGM_ASX_TRANS                   0x0021
 177 #define PGM_LX_TRANS                    0x0022
 178 #define PGM_EX_TRANS                    0x0023
 179 #define PGM_PRIM_AUTH                   0x0024
 180 #define PGM_SEC_AUTH                    0x0025
 181 #define PGM_ALET_SPEC                   0x0028
 182 #define PGM_ALEN_SPEC                   0x0029
 183 #define PGM_ALE_SEQ                     0x002a
 184 #define PGM_ASTE_VALID                  0x002b
 185 #define PGM_ASTE_SEQ                    0x002c
 186 #define PGM_EXT_AUTH                    0x002d
 187 #define PGM_STACK_FULL                  0x0030
 188 #define PGM_STACK_EMPTY                 0x0031
 189 #define PGM_STACK_SPEC                  0x0032
 190 #define PGM_STACK_TYPE                  0x0033
 191 #define PGM_STACK_OP                    0x0034
 192 #define PGM_ASCE_TYPE                   0x0038
 193 #define PGM_REG_FIRST_TRANS             0x0039
 194 #define PGM_REG_SEC_TRANS               0x003a
 195 #define PGM_REG_THIRD_TRANS             0x003b
 196 #define PGM_MONITOR                     0x0040
 197 #define PGM_PER                         0x0080
 198 #define PGM_CRYPTO                      0x0119
 199
 200 /* External Interrupts */
 201 #define EXT_INTERRUPT_KEY               0x0040
 202 #define EXT_CLOCK_COMP                  0x1004
 203 #define EXT_CPU_TIMER                   0x1005
 204 #define EXT_MALFUNCTION                 0x1200
 205 #define EXT_EMERGENCY                   0x1201
 206 #define EXT_EXTERNAL_CALL               0x1202
 207 #define EXT_ETR                         0x1406
 208 #define EXT_SERVICE                     0x2401
 209 #define EXT_VIRTIO                      0x2603
 210
 211 /* PSW defines */
 212 #undef PSW_MASK_PER
 213 #undef PSW_MASK_DAT
 214 #undef PSW_MASK_IO
 215 #undef PSW_MASK_EXT
 216 #undef PSW_MASK_KEY
 217 #undef PSW_SHIFT_KEY
 218 #undef PSW_MASK_MCHECK
 219 #undef PSW_MASK_WAIT
 220 #undef PSW_MASK_PSTATE
 221 #undef PSW_MASK_ASC
 222 #undef PSW_MASK_CC
 223 #undef PSW_MASK_PM
 224 #undef PSW_MASK_64
 225 #undef PSW_MASK_32
 226 #undef PSW_MASK_ESA_ADDR
 227
 228 #define PSW_MASK_PER            0x4000000000000000ULL
 229 #define PSW_MASK_DAT            0x0400000000000000ULL
 230 #define PSW_MASK_IO             0x0200000000000000ULL
 231 #define PSW_MASK_EXT            0x0100000000000000ULL
 232 #define PSW_MASK_KEY            0x00F0000000000000ULL
 233 #define PSW_SHIFT_KEY           56
 234 #define PSW_MASK_MCHECK         0x0004000000000000ULL
 235 #define PSW_MASK_WAIT           0x0002000000000000ULL
 236 #define PSW_MASK_PSTATE         0x0001000000000000ULL
 237 #define PSW_MASK_ASC            0x0000C00000000000ULL
 238 #define PSW_MASK_CC             0x0000300000000000ULL
 239 #define PSW_MASK_PM             0x00000F0000000000ULL
 240 #define PSW_MASK_64             0x0000000100000000ULL
 241 #define PSW_MASK_32             0x0000000080000000ULL
 242 #define PSW_MASK_ESA_ADDR       0x000000007fffffffULL
 243
 244 #undef PSW_ASC_PRIMARY
 245 #undef PSW_ASC_ACCREG
 246 #undef PSW_ASC_SECONDARY
 247 #undef PSW_ASC_HOME
 248
 249 #define PSW_ASC_PRIMARY         0x0000000000000000ULL
 250 #define PSW_ASC_ACCREG          0x0000400000000000ULL
 251 #define PSW_ASC_SECONDARY       0x0000800000000000ULL
 252 #define PSW_ASC_HOME            0x0000C00000000000ULL
 253
 254 /* tb flags */
 255
 256 #define FLAG_MASK_PER           (PSW_MASK_PER    >> 32)
 257 #define FLAG_MASK_DAT           (PSW_MASK_DAT    >> 32)
 258 #define FLAG_MASK_IO            (PSW_MASK_IO     >> 32)
 259 #define FLAG_MASK_EXT           (PSW_MASK_EXT    >> 32)
 260 #define FLAG_MASK_KEY           (PSW_MASK_KEY    >> 32)
 261 #define FLAG_MASK_MCHECK        (PSW_MASK_MCHECK >> 32)
 262 #define FLAG_MASK_WAIT          (PSW_MASK_WAIT   >> 32)
 263 #define FLAG_MASK_PSTATE        (PSW_MASK_PSTATE >> 32)
 264 #define FLAG_MASK_ASC           (PSW_MASK_ASC    >> 32)
 265 #define FLAG_MASK_CC            (PSW_MASK_CC     >> 32)
 266 #define FLAG_MASK_PM            (PSW_MASK_PM     >> 32)
 267 #define FLAG_MASK_64            (PSW_MASK_64     >> 32)
 268 #define FLAG_MASK_32            0x00001000
 269
 270 static inline int cpu_mmu_index (CPUS390XState *env)
 271 {
 272     if (env->psw.mask & PSW_MASK_PSTATE) {
 273         return 1;
 274     }
 275
 276     return 0;
 277 }
 278
 279 static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc,
 280                                         target_ulong *cs_base, int *flags)
 281 {
 282     *pc = env->psw.addr;
 283     *cs_base = 0;
 284     *flags = ((env->psw.mask >> 32) & ~FLAG_MASK_CC) |
 285              ((env->psw.mask & PSW_MASK_32) ? FLAG_MASK_32 : 0);
 286 }
 287
 288 /* While the PoO talks about ILC (a number between 1-3) what is actually
 289    stored in LowCore is shifted left one bit (an even between 2-6).  As
 290    this is the actual length of the insn and therefore more useful, that
 291    is what we want to pass around and manipulate.  To make sure that we
 292    have applied this distinction universally, rename the "ILC" to "ILEN".  */
 293 static inline int get_ilen(uint8_t opc)
 294 {
 295     switch (opc >> 6) {
 296     case 0:
 297         return 2;
 298     case 1:
 299     case 2:
 300         return 4;
 301     default:
 302         return 6;
 303     }
 304 }
 305
 306 #ifndef CONFIG_USER_ONLY
 307 /* In several cases of runtime exceptions, we havn't recorded the true
 308    instruction length.  Use these codes when raising exceptions in order
 309    to re-compute the length by examining the insn in memory.  */
 310 #define ILEN_LATER       0x20
 311 #define ILEN_LATER_INC   0x21
 312 #endif
 313
 314 S390CPU *cpu_s390x_init(const char *cpu_model);
 315 void s390x_translate_init(void);
 316 int cpu_s390x_exec(CPUS390XState *s);
 317
 318 /* you can call this signal handler from your SIGBUS and SIGSEGV
 319    signal handlers to inform the virtual CPU of exceptions. non zero
 320    is returned if the signal was handled by the virtual CPU.  */
 321 int cpu_s390x_signal_handler(int host_signum, void *pinfo,
 322                            void *puc);
 323 int s390_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
 324                               int mmu_idx);
 325
 326 #include "ioinst.h"
 327
 328 #ifndef CONFIG_USER_ONLY
 329 void *s390_cpu_physical_memory_map(CPUS390XState *env, hwaddr addr, hwaddr *len,
 330                                    int is_write);
 331 void s390_cpu_physical_memory_unmap(CPUS390XState *env, void *addr, hwaddr len,
 332                                     int is_write);
 333 static inline hwaddr decode_basedisp_s(CPUS390XState *env, uint32_t ipb)
 334 {
 335     hwaddr addr = 0;
 336     uint8_t reg;
 337
 338     reg = ipb >> 28;
 339     if (reg > 0) {
 340         addr = env->regs[reg];
 341     }
 342     addr += (ipb >> 16) & 0xfff;
 343
 344     return addr;
 345 }
 346
 347 /* Base/displacement are at the same locations. */
 348 #define decode_basedisp_rs decode_basedisp_s
 349
 350 void s390x_tod_timer(void *opaque);
 351 void s390x_cpu_timer(void *opaque);
 352
 353 int s390_virtio_hypercall(CPUS390XState *env);
 354
 355 #ifdef CONFIG_KVM
 356 void kvm_s390_interrupt(S390CPU *cpu, int type, uint32_t code);
 357 void kvm_s390_virtio_irq(S390CPU *cpu, int config_change, uint64_t token);
 358 void kvm_s390_interrupt_internal(S390CPU *cpu, int type, uint32_t parm,
 359                                  uint64_t parm64, int vm);
 360 #else
 361 static inline void kvm_s390_interrupt(S390CPU *cpu, int type, uint32_t code)
 362 {
 363 }
 364
 365 static inline void kvm_s390_virtio_irq(S390CPU *cpu, int config_change,
 366                                        uint64_t token)
 367 {
 368 }
 369
 370 static inline void kvm_s390_interrupt_internal(S390CPU *cpu, int type,
 371                                                uint32_t parm, uint64_t parm64,
 372                                                int vm)
 373 {
 374 }
 375 #endif
 376 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr);
 377 void s390_add_running_cpu(S390CPU *cpu);
 378 unsigned s390_del_running_cpu(S390CPU *cpu);
 379
 380 /* service interrupts are floating therefore we must not pass an cpustate */
 381 void s390_sclp_extint(uint32_t parm);
 382
 383 /* from s390-virtio-bus */
 384 extern const hwaddr virtio_size;
 385
 386 #else
 387 static inline void s390_add_running_cpu(S390CPU *cpu)
 388 {
 389 }
 390
 391 static inline unsigned s390_del_running_cpu(S390CPU *cpu)
 392 {
 393     return 0;
 394 }
 395 #endif
 396 void cpu_lock(void);
 397 void cpu_unlock(void);
 398
 399 typedef struct SubchDev SubchDev;
 400
 401 #ifndef CONFIG_USER_ONLY
 402 extern void io_subsystem_reset(void);
 403 SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
 404                          uint16_t schid);
 405 bool css_subch_visible(SubchDev *sch);
 406 void css_conditional_io_interrupt(SubchDev *sch);
 407 int css_do_stsch(SubchDev *sch, SCHIB *schib);
 408 bool css_schid_final(int m, uint8_t cssid, uint8_t ssid, uint16_t schid);
 409 int css_do_msch(SubchDev *sch, SCHIB *schib);
 410 int css_do_xsch(SubchDev *sch);
 411 int css_do_csch(SubchDev *sch);
 412 int css_do_hsch(SubchDev *sch);
 413 int css_do_ssch(SubchDev *sch, ORB *orb);
 414 int css_do_tsch(SubchDev *sch, IRB *irb);
 415 int css_do_stcrw(CRW *crw);
 416 int css_do_tpi(IOIntCode *int_code, int lowcore);
 417 int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid, uint8_t l_chpid,
 418                          int rfmt, void *buf);
 419 void css_do_schm(uint8_t mbk, int update, int dct, uint64_t mbo);
 420 int css_enable_mcsse(void);
 421 int css_enable_mss(void);
 422 int css_do_rsch(SubchDev *sch);
 423 int css_do_rchp(uint8_t cssid, uint8_t chpid);
 424 bool css_present(uint8_t cssid);
 425 #else
 426 static inline SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
 427                                        uint16_t schid)
 428 {
 429     return NULL;
 430 }
 431 static inline bool css_subch_visible(SubchDev *sch)
 432 {
 433     return false;
 434 }
 435 static inline void css_conditional_io_interrupt(SubchDev *sch)
 436 {
 437 }
 438 static inline int css_do_stsch(SubchDev *sch, SCHIB *schib)
 439 {
 440     return -ENODEV;
 441 }
 442 static inline bool css_schid_final(uint8_t cssid, uint8_t ssid, uint16_t schid)
 443 {
 444     return true;
 445 }
 446 static inline int css_do_msch(SubchDev *sch, SCHIB *schib)
 447 {
 448     return -ENODEV;
 449 }
 450 static inline int css_do_xsch(SubchDev *sch)
 451 {
 452     return -ENODEV;
 453 }
 454 static inline int css_do_csch(SubchDev *sch)
 455 {
 456     return -ENODEV;
 457 }
 458 static inline int css_do_hsch(SubchDev *sch)
 459 {
 460     return -ENODEV;
 461 }
 462 static inline int css_do_ssch(SubchDev *sch, ORB *orb)
 463 {
 464     return -ENODEV;
 465 }
 466 static inline int css_do_tsch(SubchDev *sch, IRB *irb)
 467 {
 468     return -ENODEV;
 469 }
 470 static inline int css_do_stcrw(CRW *crw)
 471 {
 472     return 1;
 473 }
 474 static inline int css_do_tpi(IOIntCode *int_code, int lowcore)
 475 {
 476     return 0;
 477 }
 478 static inline int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid,
 479                                        int rfmt, uint8_t l_chpid, void *buf)
 480 {
 481     return 0;
 482 }
 483 static inline void css_do_schm(uint8_t mbk, int update, int dct, uint64_t mbo)
 484 {
 485 }
 486 static inline int css_enable_mss(void)
 487 {
 488     return -EINVAL;
 489 }
 490 static inline int css_enable_mcsse(void)
 491 {
 492     return -EINVAL;
 493 }
 494 static inline int css_do_rsch(SubchDev *sch)
 495 {
 496     return -ENODEV;
 497 }
 498 static inline int css_do_rchp(uint8_t cssid, uint8_t chpid)
 499 {
 500     return -ENODEV;
 501 }
 502 static inline bool css_present(uint8_t cssid)
 503 {
 504     return false;
 505 }
 506 #endif
 507
 508 #define cpu_init(model) (&cpu_s390x_init(model)->env)
 509 #define cpu_exec cpu_s390x_exec
 510 #define cpu_gen_code cpu_s390x_gen_code
 511 #define cpu_signal_handler cpu_s390x_signal_handler
 512
 513 void s390_cpu_list(FILE *f, fprintf_function cpu_fprintf);
 514 #define cpu_list s390_cpu_list
 515
 516 #include "exec/exec-all.h"
 517
 518 #define EXCP_EXT 1 /* external interrupt */
 519 #define EXCP_SVC 2 /* supervisor call (syscall) */
 520 #define EXCP_PGM 3 /* program interruption */
 521 #define EXCP_IO  7 /* I/O interrupt */
 522 #define EXCP_MCHK 8 /* machine check */
 523
 524 #define INTERRUPT_EXT        (1 << 0)
 525 #define INTERRUPT_TOD        (1 << 1)
 526 #define INTERRUPT_CPUTIMER   (1 << 2)
 527 #define INTERRUPT_IO         (1 << 3)
 528 #define INTERRUPT_MCHK       (1 << 4)
 529
 530 /* Program Status Word.  */
 531 #define S390_PSWM_REGNUM 0
 532 #define S390_PSWA_REGNUM 1
 533 /* General Purpose Registers.  */
 534 #define S390_R0_REGNUM 2
 535 #define S390_R1_REGNUM 3
 536 #define S390_R2_REGNUM 4
 537 #define S390_R3_REGNUM 5
 538 #define S390_R4_REGNUM 6
 539 #define S390_R5_REGNUM 7
 540 #define S390_R6_REGNUM 8
 541 #define S390_R7_REGNUM 9
 542 #define S390_R8_REGNUM 10
 543 #define S390_R9_REGNUM 11
 544 #define S390_R10_REGNUM 12
 545 #define S390_R11_REGNUM 13
 546 #define S390_R12_REGNUM 14
 547 #define S390_R13_REGNUM 15
 548 #define S390_R14_REGNUM 16
 549 #define S390_R15_REGNUM 17
 550 /* Access Registers.  */
 551 #define S390_A0_REGNUM 18
 552 #define S390_A1_REGNUM 19
 553 #define S390_A2_REGNUM 20
 554 #define S390_A3_REGNUM 21
 555 #define S390_A4_REGNUM 22
 556 #define S390_A5_REGNUM 23
 557 #define S390_A6_REGNUM 24
 558 #define S390_A7_REGNUM 25
 559 #define S390_A8_REGNUM 26
 560 #define S390_A9_REGNUM 27
 561 #define S390_A10_REGNUM 28
 562 #define S390_A11_REGNUM 29
 563 #define S390_A12_REGNUM 30
 564 #define S390_A13_REGNUM 31
 565 #define S390_A14_REGNUM 32
 566 #define S390_A15_REGNUM 33
 567 /* Floating Point Control Word.  */
 568 #define S390_FPC_REGNUM 34
 569 /* Floating Point Registers.  */
 570 #define S390_F0_REGNUM 35
 571 #define S390_F1_REGNUM 36
 572 #define S390_F2_REGNUM 37
 573 #define S390_F3_REGNUM 38
 574 #define S390_F4_REGNUM 39
 575 #define S390_F5_REGNUM 40
 576 #define S390_F6_REGNUM 41
 577 #define S390_F7_REGNUM 42
 578 #define S390_F8_REGNUM 43
 579 #define S390_F9_REGNUM 44
 580 #define S390_F10_REGNUM 45
 581 #define S390_F11_REGNUM 46
 582 #define S390_F12_REGNUM 47
 583 #define S390_F13_REGNUM 48
 584 #define S390_F14_REGNUM 49
 585 #define S390_F15_REGNUM 50
 586 /* Total.  */
 587 #define S390_NUM_REGS 51
 588
 589 /* CC optimization */
 590
 591 enum cc_op {
 592     CC_OP_CONST0 = 0,           /* CC is 0 */
 593     CC_OP_CONST1,               /* CC is 1 */
 594     CC_OP_CONST2,               /* CC is 2 */
 595     CC_OP_CONST3,               /* CC is 3 */
 596
 597     CC_OP_DYNAMIC,              /* CC calculation defined by env->cc_op */
 598     CC_OP_STATIC,               /* CC value is env->cc_op */
 599
 600     CC_OP_NZ,                   /* env->cc_dst != 0 */
 601     CC_OP_LTGT_32,              /* signed less/greater than (32bit) */
 602     CC_OP_LTGT_64,              /* signed less/greater than (64bit) */
 603     CC_OP_LTUGTU_32,            /* unsigned less/greater than (32bit) */
 604     CC_OP_LTUGTU_64,            /* unsigned less/greater than (64bit) */
 605     CC_OP_LTGT0_32,             /* signed less/greater than 0 (32bit) */
 606     CC_OP_LTGT0_64,             /* signed less/greater than 0 (64bit) */
 607
 608     CC_OP_ADD_64,               /* overflow on add (64bit) */
 609     CC_OP_ADDU_64,              /* overflow on unsigned add (64bit) */
 610     CC_OP_ADDC_64,              /* overflow on unsigned add-carry (64bit) */
 611     CC_OP_SUB_64,               /* overflow on subtraction (64bit) */
 612     CC_OP_SUBU_64,              /* overflow on unsigned subtraction (64bit) */
 613     CC_OP_SUBB_64,              /* overflow on unsigned sub-borrow (64bit) */
 614     CC_OP_ABS_64,               /* sign eval on abs (64bit) */
 615     CC_OP_NABS_64,              /* sign eval on nabs (64bit) */
 616
 617     CC_OP_ADD_32,               /* overflow on add (32bit) */
 618     CC_OP_ADDU_32,              /* overflow on unsigned add (32bit) */
 619     CC_OP_ADDC_32,              /* overflow on unsigned add-carry (32bit) */
 620     CC_OP_SUB_32,               /* overflow on subtraction (32bit) */
 621     CC_OP_SUBU_32,              /* overflow on unsigned subtraction (32bit) */
 622     CC_OP_SUBB_32,              /* overflow on unsigned sub-borrow (32bit) */
 623     CC_OP_ABS_32,               /* sign eval on abs (64bit) */
 624     CC_OP_NABS_32,              /* sign eval on nabs (64bit) */
 625
 626     CC_OP_COMP_32,              /* complement */
 627     CC_OP_COMP_64,              /* complement */
 628
 629     CC_OP_TM_32,                /* test under mask (32bit) */
 630     CC_OP_TM_64,                /* test under mask (64bit) */
 631
 632     CC_OP_NZ_F32,               /* FP dst != 0 (32bit) */
 633     CC_OP_NZ_F64,               /* FP dst != 0 (64bit) */
 634     CC_OP_NZ_F128,              /* FP dst != 0 (128bit) */
 635
 636     CC_OP_ICM,                  /* insert characters under mask */
 637     CC_OP_SLA_32,               /* Calculate shift left signed (32bit) */
 638     CC_OP_SLA_64,               /* Calculate shift left signed (64bit) */
 639     CC_OP_FLOGR,                /* find leftmost one */
 640     CC_OP_MAX
 641 };
 642
 643 static const char *cc_names[] = {
 644     [CC_OP_CONST0]    = "CC_OP_CONST0",
 645     [CC_OP_CONST1]    = "CC_OP_CONST1",
 646     [CC_OP_CONST2]    = "CC_OP_CONST2",
 647     [CC_OP_CONST3]    = "CC_OP_CONST3",
 648     [CC_OP_DYNAMIC]   = "CC_OP_DYNAMIC",
 649     [CC_OP_STATIC]    = "CC_OP_STATIC",
 650     [CC_OP_NZ]        = "CC_OP_NZ",
 651     [CC_OP_LTGT_32]   = "CC_OP_LTGT_32",
 652     [CC_OP_LTGT_64]   = "CC_OP_LTGT_64",
 653     [CC_OP_LTUGTU_32] = "CC_OP_LTUGTU_32",
 654     [CC_OP_LTUGTU_64] = "CC_OP_LTUGTU_64",
 655     [CC_OP_LTGT0_32]  = "CC_OP_LTGT0_32",
 656     [CC_OP_LTGT0_64]  = "CC_OP_LTGT0_64",
 657     [CC_OP_ADD_64]    = "CC_OP_ADD_64",
 658     [CC_OP_ADDU_64]   = "CC_OP_ADDU_64",
 659     [CC_OP_ADDC_64]   = "CC_OP_ADDC_64",
 660     [CC_OP_SUB_64]    = "CC_OP_SUB_64",
 661     [CC_OP_SUBU_64]   = "CC_OP_SUBU_64",
 662     [CC_OP_SUBB_64]   = "CC_OP_SUBB_64",
 663     [CC_OP_ABS_64]    = "CC_OP_ABS_64",
 664     [CC_OP_NABS_64]   = "CC_OP_NABS_64",
 665     [CC_OP_ADD_32]    = "CC_OP_ADD_32",
 666     [CC_OP_ADDU_32]   = "CC_OP_ADDU_32",
 667     [CC_OP_ADDC_32]   = "CC_OP_ADDC_32",
 668     [CC_OP_SUB_32]    = "CC_OP_SUB_32",
 669     [CC_OP_SUBU_32]   = "CC_OP_SUBU_32",
 670     [CC_OP_SUBB_32]   = "CC_OP_SUBB_32",
 671     [CC_OP_ABS_32]    = "CC_OP_ABS_32",
 672     [CC_OP_NABS_32]   = "CC_OP_NABS_32",
 673     [CC_OP_COMP_32]   = "CC_OP_COMP_32",
 674     [CC_OP_COMP_64]   = "CC_OP_COMP_64",
 675     [CC_OP_TM_32]     = "CC_OP_TM_32",
 676     [CC_OP_TM_64]     = "CC_OP_TM_64",
 677     [CC_OP_NZ_F32]    = "CC_OP_NZ_F32",
 678     [CC_OP_NZ_F64]    = "CC_OP_NZ_F64",
 679     [CC_OP_NZ_F128]   = "CC_OP_NZ_F128",
 680     [CC_OP_ICM]       = "CC_OP_ICM",
 681     [CC_OP_SLA_32]    = "CC_OP_SLA_32",
 682     [CC_OP_SLA_64]    = "CC_OP_SLA_64",
 683     [CC_OP_FLOGR]     = "CC_OP_FLOGR",
 684 };
 685
 686 static inline const char *cc_name(int cc_op)
 687 {
 688     return cc_names[cc_op];
 689 }
 690
 691 static inline void setcc(S390CPU *cpu, uint64_t cc)
 692 {
 693     CPUS390XState *env = &cpu->env;
 694
 695     env->psw.mask &= ~(3ull << 44);
 696     env->psw.mask |= (cc & 3) << 44;
 697 }
 698
 699 typedef struct LowCore
 700 {
 701     /* prefix area: defined by architecture */
 702     uint32_t        ccw1[2];                  /* 0x000 */
 703     uint32_t        ccw2[4];                  /* 0x008 */
 704     uint8_t         pad1[0x80-0x18];          /* 0x018 */
 705     uint32_t        ext_params;               /* 0x080 */
 706     uint16_t        cpu_addr;                 /* 0x084 */
 707     uint16_t        ext_int_code;             /* 0x086 */
 708     uint16_t        svc_ilen;                 /* 0x088 */
 709     uint16_t        svc_code;                 /* 0x08a */
 710     uint16_t        pgm_ilen;                 /* 0x08c */
 711     uint16_t        pgm_code;                 /* 0x08e */
 712     uint32_t        data_exc_code;            /* 0x090 */
 713     uint16_t        mon_class_num;            /* 0x094 */
 714     uint16_t        per_perc_atmid;           /* 0x096 */
 715     uint64_t        per_address;              /* 0x098 */
 716     uint8_t         exc_access_id;            /* 0x0a0 */
 717     uint8_t         per_access_id;            /* 0x0a1 */
 718     uint8_t         op_access_id;             /* 0x0a2 */
 719     uint8_t         ar_access_id;             /* 0x0a3 */
 720     uint8_t         pad2[0xA8-0xA4];          /* 0x0a4 */
 721     uint64_t        trans_exc_code;           /* 0x0a8 */
 722     uint64_t        monitor_code;             /* 0x0b0 */
 723     uint16_t        subchannel_id;            /* 0x0b8 */
 724     uint16_t        subchannel_nr;            /* 0x0ba */
 725     uint32_t        io_int_parm;              /* 0x0bc */
 726     uint32_t        io_int_word;              /* 0x0c0 */
 727     uint8_t         pad3[0xc8-0xc4];          /* 0x0c4 */
 728     uint32_t        stfl_fac_list;            /* 0x0c8 */
 729     uint8_t         pad4[0xe8-0xcc];          /* 0x0cc */
 730     uint32_t        mcck_interruption_code[2]; /* 0x0e8 */
 731     uint8_t         pad5[0xf4-0xf0];          /* 0x0f0 */
 732     uint32_t        external_damage_code;     /* 0x0f4 */
 733     uint64_t        failing_storage_address;  /* 0x0f8 */
 734     uint8_t         pad6[0x120-0x100];        /* 0x100 */
 735     PSW             restart_old_psw;          /* 0x120 */
 736     PSW             external_old_psw;         /* 0x130 */
 737     PSW             svc_old_psw;              /* 0x140 */
 738     PSW             program_old_psw;          /* 0x150 */
 739     PSW             mcck_old_psw;             /* 0x160 */
 740     PSW             io_old_psw;               /* 0x170 */
 741     uint8_t         pad7[0x1a0-0x180];        /* 0x180 */
 742     PSW             restart_psw;              /* 0x1a0 */
 743     PSW             external_new_psw;         /* 0x1b0 */
 744     PSW             svc_new_psw;              /* 0x1c0 */
 745     PSW             program_new_psw;          /* 0x1d0 */
 746     PSW             mcck_new_psw;             /* 0x1e0 */
 747     PSW             io_new_psw;               /* 0x1f0 */
 748     PSW             return_psw;               /* 0x200 */
 749     uint8_t         irb[64];                  /* 0x210 */
 750     uint64_t        sync_enter_timer;         /* 0x250 */
 751     uint64_t        async_enter_timer;        /* 0x258 */
 752     uint64_t        exit_timer;               /* 0x260 */
 753     uint64_t        last_update_timer;        /* 0x268 */
 754     uint64_t        user_timer;               /* 0x270 */
 755     uint64_t        system_timer;             /* 0x278 */
 756     uint64_t        last_update_clock;        /* 0x280 */
 757     uint64_t        steal_clock;              /* 0x288 */
 758     PSW             return_mcck_psw;          /* 0x290 */
 759     uint8_t         pad8[0xc00-0x2a0];        /* 0x2a0 */
 760     /* System info area */
 761     uint64_t        save_area[16];            /* 0xc00 */
 762     uint8_t         pad9[0xd40-0xc80];        /* 0xc80 */
 763     uint64_t        kernel_stack;             /* 0xd40 */
 764     uint64_t        thread_info;              /* 0xd48 */
 765     uint64_t        async_stack;              /* 0xd50 */
 766     uint64_t        kernel_asce;              /* 0xd58 */
 767     uint64_t        user_asce;                /* 0xd60 */
 768     uint64_t        panic_stack;              /* 0xd68 */
 769     uint64_t        user_exec_asce;           /* 0xd70 */
 770     uint8_t         pad10[0xdc0-0xd78];       /* 0xd78 */
 771
 772     /* SMP info area: defined by DJB */
 773     uint64_t        clock_comparator;         /* 0xdc0 */
 774     uint64_t        ext_call_fast;            /* 0xdc8 */
 775     uint64_t        percpu_offset;            /* 0xdd0 */
 776     uint64_t        current_task;             /* 0xdd8 */
 777     uint32_t        softirq_pending;          /* 0xde0 */
 778     uint32_t        pad_0x0de4;               /* 0xde4 */
 779     uint64_t        int_clock;                /* 0xde8 */
 780     uint8_t         pad12[0xe00-0xdf0];       /* 0xdf0 */
 781
 782     /* 0xe00 is used as indicator for dump tools */
 783     /* whether the kernel died with panic() or not */
 784     uint32_t        panic_magic;              /* 0xe00 */
 785
 786     uint8_t         pad13[0x11b8-0xe04];      /* 0xe04 */
 787
 788     /* 64 bit extparam used for pfault, diag 250 etc  */
 789     uint64_t        ext_params2;               /* 0x11B8 */
 790
 791     uint8_t         pad14[0x1200-0x11C0];      /* 0x11C0 */
 792
 793     /* System info area */
 794
 795     uint64_t        floating_pt_save_area[16]; /* 0x1200 */
 796     uint64_t        gpregs_save_area[16];      /* 0x1280 */
 797     uint32_t        st_status_fixed_logout[4]; /* 0x1300 */
 798     uint8_t         pad15[0x1318-0x1310];      /* 0x1310 */
 799     uint32_t        prefixreg_save_area;       /* 0x1318 */
 800     uint32_t        fpt_creg_save_area;        /* 0x131c */
 801     uint8_t         pad16[0x1324-0x1320];      /* 0x1320 */
 802     uint32_t        tod_progreg_save_area;     /* 0x1324 */
 803     uint32_t        cpu_timer_save_area[2];    /* 0x1328 */
 804     uint32_t        clock_comp_save_area[2];   /* 0x1330 */
 805     uint8_t         pad17[0x1340-0x1338];      /* 0x1338 */
 806     uint32_t        access_regs_save_area[16]; /* 0x1340 */
 807     uint64_t        cregs_save_area[16];       /* 0x1380 */
 808
 809     /* align to the top of the prefix area */
 810
 811     uint8_t         pad18[0x2000-0x1400];      /* 0x1400 */
 812 } QEMU_PACKED LowCore;
 813
 814 /* STSI */
 815 #define STSI_LEVEL_MASK         0x00000000f0000000ULL
 816 #define STSI_LEVEL_CURRENT      0x0000000000000000ULL
 817 #define STSI_LEVEL_1            0x0000000010000000ULL
 818 #define STSI_LEVEL_2            0x0000000020000000ULL
 819 #define STSI_LEVEL_3            0x0000000030000000ULL
 820 #define STSI_R0_RESERVED_MASK   0x000000000fffff00ULL
 821 #define STSI_R0_SEL1_MASK       0x00000000000000ffULL
 822 #define STSI_R1_RESERVED_MASK   0x00000000ffff0000ULL
 823 #define STSI_R1_SEL2_MASK       0x000000000000ffffULL
 824
 825 /* Basic Machine Configuration */
 826 struct sysib_111 {
 827     uint32_t res1[8];
 828     uint8_t  manuf[16];
 829     uint8_t  type[4];
 830     uint8_t  res2[12];
 831     uint8_t  model[16];
 832     uint8_t  sequence[16];
 833     uint8_t  plant[4];
 834     uint8_t  res3[156];
 835 };
 836
 837 /* Basic Machine CPU */
 838 struct sysib_121 {
 839     uint32_t res1[80];
 840     uint8_t  sequence[16];
 841     uint8_t  plant[4];
 842     uint8_t  res2[2];
 843     uint16_t cpu_addr;
 844     uint8_t  res3[152];
 845 };
 846
 847 /* Basic Machine CPUs */
 848 struct sysib_122 {
 849     uint8_t res1[32];
 850     uint32_t capability;
 851     uint16_t total_cpus;
 852     uint16_t active_cpus;
 853     uint16_t standby_cpus;
 854     uint16_t reserved_cpus;
 855     uint16_t adjustments[2026];
 856 };
 857
 858 /* LPAR CPU */
 859 struct sysib_221 {
 860     uint32_t res1[80];
 861     uint8_t  sequence[16];
 862     uint8_t  plant[4];
 863     uint16_t cpu_id;
 864     uint16_t cpu_addr;
 865     uint8_t  res3[152];
 866 };
 867
 868 /* LPAR CPUs */
 869 struct sysib_222 {
 870     uint32_t res1[32];
 871     uint16_t lpar_num;
 872     uint8_t  res2;
 873     uint8_t  lcpuc;
 874     uint16_t total_cpus;
 875     uint16_t conf_cpus;
 876     uint16_t standby_cpus;
 877     uint16_t reserved_cpus;
 878     uint8_t  name[8];
 879     uint32_t caf;
 880     uint8_t  res3[16];
 881     uint16_t dedicated_cpus;
 882     uint16_t shared_cpus;
 883     uint8_t  res4[180];
 884 };
 885
 886 /* VM CPUs */
 887 struct sysib_322 {
 888     uint8_t  res1[31];
 889     uint8_t  count;
 890     struct {
 891         uint8_t  res2[4];
 892         uint16_t total_cpus;
 893         uint16_t conf_cpus;
 894         uint16_t standby_cpus;
 895         uint16_t reserved_cpus;
 896         uint8_t  name[8];
 897         uint32_t caf;
 898         uint8_t  cpi[16];
 899         uint8_t  res3[24];
 900     } vm[8];
 901     uint8_t res4[3552];
 902 };
 903
 904 /* MMU defines */
 905 #define _ASCE_ORIGIN            ~0xfffULL /* segment table origin             */
 906 #define _ASCE_SUBSPACE          0x200     /* subspace group control           */
 907 #define _ASCE_PRIVATE_SPACE     0x100     /* private space control            */
 908 #define _ASCE_ALT_EVENT         0x80      /* storage alteration event control */
 909 #define _ASCE_SPACE_SWITCH      0x40      /* space switch event               */
 910 #define _ASCE_REAL_SPACE        0x20      /* real space control               */
 911 #define _ASCE_TYPE_MASK         0x0c      /* asce table type mask             */
 912 #define _ASCE_TYPE_REGION1      0x0c      /* region first table type          */
 913 #define _ASCE_TYPE_REGION2      0x08      /* region second table type         */
 914 #define _ASCE_TYPE_REGION3      0x04      /* region third table type          */
 915 #define _ASCE_TYPE_SEGMENT      0x00      /* segment table type               */
 916 #define _ASCE_TABLE_LENGTH      0x03      /* region table length              */
 917
 918 #define _REGION_ENTRY_ORIGIN    ~0xfffULL /* region/segment table origin      */
 919 #define _REGION_ENTRY_INV       0x20      /* invalid region table entry       */
 920 #define _REGION_ENTRY_TYPE_MASK 0x0c      /* region/segment table type mask   */
 921 #define _REGION_ENTRY_TYPE_R1   0x0c      /* region first table type          */
 922 #define _REGION_ENTRY_TYPE_R2   0x08      /* region second table type         */
 923 #define _REGION_ENTRY_TYPE_R3   0x04      /* region third table type          */
 924 #define _REGION_ENTRY_LENGTH    0x03      /* region third length              */
 925
 926 #define _SEGMENT_ENTRY_ORIGIN   ~0x7ffULL /* segment table origin             */
 927 #define _SEGMENT_ENTRY_RO       0x200     /* page protection bit              */
 928 #define _SEGMENT_ENTRY_INV      0x20      /* invalid segment table entry      */
 929
 930 #define _PAGE_RO        0x200            /* HW read-only bit  */
 931 #define _PAGE_INVALID   0x400            /* HW invalid bit    */
 932
 933 #define SK_C                    (0x1 << 1)
 934 #define SK_R                    (0x1 << 2)
 935 #define SK_F                    (0x1 << 3)
 936 #define SK_ACC_MASK             (0xf << 4)
 937
 938 #define SIGP_SENSE             0x01
 939 #define SIGP_EXTERNAL_CALL     0x02
 940 #define SIGP_EMERGENCY         0x03
 941 #define SIGP_START             0x04
 942 #define SIGP_STOP              0x05
 943 #define SIGP_RESTART           0x06
 944 #define SIGP_STOP_STORE_STATUS 0x09
 945 #define SIGP_INITIAL_CPU_RESET 0x0b
 946 #define SIGP_CPU_RESET         0x0c
 947 #define SIGP_SET_PREFIX        0x0d
 948 #define SIGP_STORE_STATUS_ADDR 0x0e
 949 #define SIGP_SET_ARCH          0x12
 950
 951 /* cpu status bits */
 952 #define SIGP_STAT_EQUIPMENT_CHECK   0x80000000UL
 953 #define SIGP_STAT_INCORRECT_STATE   0x00000200UL
 954 #define SIGP_STAT_INVALID_PARAMETER 0x00000100UL
 955 #define SIGP_STAT_EXT_CALL_PENDING  0x00000080UL
 956 #define SIGP_STAT_STOPPED           0x00000040UL
 957 #define SIGP_STAT_OPERATOR_INTERV   0x00000020UL
 958 #define SIGP_STAT_CHECK_STOP        0x00000010UL
 959 #define SIGP_STAT_INOPERATIVE       0x00000004UL
 960 #define SIGP_STAT_INVALID_ORDER     0x00000002UL
 961 #define SIGP_STAT_RECEIVER_CHECK    0x00000001UL
 962
 963 void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr);
 964 int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc,
 965                   target_ulong *raddr, int *flags);
 966 int sclp_service_call(CPUS390XState *env, uint64_t sccb, uint32_t code);
 967 uint32_t calc_cc(CPUS390XState *env, uint32_t cc_op, uint64_t src, uint64_t dst,
 968                  uint64_t vr);
 969
 970 #define TARGET_HAS_ICE 1
 971
 972 /* The value of the TOD clock for 1.1.1970. */
 973 #define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
 974
 975 /* Converts ns to s390's clock format */
 976 static inline uint64_t time2tod(uint64_t ns) {
 977     return (ns << 9) / 125;
 978 }
 979
 980 static inline void cpu_inject_ext(S390CPU *cpu, uint32_t code, uint32_t param,
 981                                   uint64_t param64)
 982 {
 983     CPUS390XState *env = &cpu->env;
 984
 985     if (env->ext_index == MAX_EXT_QUEUE - 1) {
 986         /* ugh - can't queue anymore. Let's drop. */
 987         return;
 988     }
 989
 990     env->ext_index++;
 991     assert(env->ext_index < MAX_EXT_QUEUE);
 992
 993     env->ext_queue[env->ext_index].code = code;
 994     env->ext_queue[env->ext_index].param = param;
 995     env->ext_queue[env->ext_index].param64 = param64;
 996
 997     env->pending_int |= INTERRUPT_EXT;
 998     cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
 999 }
1000
1001 static inline void cpu_inject_io(S390CPU *cpu, uint16_t subchannel_id,
1002                                  uint16_t subchannel_number,
1003                                  uint32_t io_int_parm, uint32_t io_int_word)
1004 {
1005     CPUS390XState *env = &cpu->env;
1006     int isc = IO_INT_WORD_ISC(io_int_word);
1007
1008     if (env->io_index[isc] == MAX_IO_QUEUE - 1) {
1009         /* ugh - can't queue anymore. Let's drop. */
1010         return;
1011     }
1012
1013     env->io_index[isc]++;
1014     assert(env->io_index[isc] < MAX_IO_QUEUE);
1015
1016     env->io_queue[env->io_index[isc]][isc].id = subchannel_id;
1017     env->io_queue[env->io_index[isc]][isc].nr = subchannel_number;
1018     env->io_queue[env->io_index[isc]][isc].parm = io_int_parm;
1019     env->io_queue[env->io_index[isc]][isc].word = io_int_word;
1020
1021     env->pending_int |= INTERRUPT_IO;
1022     cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
1023 }
1024
1025 static inline void cpu_inject_crw_mchk(S390CPU *cpu)
1026 {
1027     CPUS390XState *env = &cpu->env;
1028
1029     if (env->mchk_index == MAX_MCHK_QUEUE - 1) {
1030         /* ugh - can't queue anymore. Let's drop. */
1031         return;
1032     }
1033
1034     env->mchk_index++;
1035     assert(env->mchk_index < MAX_MCHK_QUEUE);
1036
1037     env->mchk_queue[env->mchk_index].type = 1;
1038
1039     env->pending_int |= INTERRUPT_MCHK;
1040     cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
1041 }
1042
1043 /* fpu_helper.c */
1044 uint32_t set_cc_nz_f32(float32 v);
1045 uint32_t set_cc_nz_f64(float64 v);
1046 uint32_t set_cc_nz_f128(float128 v);
1047
1048 /* misc_helper.c */
1049 #ifndef CONFIG_USER_ONLY
1050 void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3);
1051 #endif
1052 void program_interrupt(CPUS390XState *env, uint32_t code, int ilen);
1053 void QEMU_NORETURN runtime_exception(CPUS390XState *env, int excp,
1054                                      uintptr_t retaddr);
1055
1056 #ifdef CONFIG_KVM
1057 void kvm_s390_io_interrupt(S390CPU *cpu, uint16_t subchannel_id,
1058                            uint16_t subchannel_nr, uint32_t io_int_parm,
1059                            uint32_t io_int_word);
1060 void kvm_s390_crw_mchk(S390CPU *cpu);
1061 void kvm_s390_enable_css_support(S390CPU *cpu);
1062 int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch,
1063                                     int vq, bool assign);
1064 int kvm_s390_cpu_restart(S390CPU *cpu);
1065 #else
1066 static inline void kvm_s390_io_interrupt(S390CPU *cpu,
1067                                         uint16_t subchannel_id,
1068                                         uint16_t subchannel_nr,
1069                                         uint32_t io_int_parm,
1070                                         uint32_t io_int_word)
1071 {
1072 }
1073 static inline void kvm_s390_crw_mchk(S390CPU *cpu)
1074 {
1075 }
1076 static inline void kvm_s390_enable_css_support(S390CPU *cpu)
1077 {
1078 }
1079 static inline int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier,
1080                                                   uint32_t sch, int vq,
1081                                                   bool assign)
1082 {
1083     return -ENOSYS;
1084 }
1085 static inline int kvm_s390_cpu_restart(S390CPU *cpu)
1086 {
1087     return -ENOSYS;
1088 }
1089 #endif
1090
1091 static inline int s390_cpu_restart(S390CPU *cpu)
1092 {
1093     if (kvm_enabled()) {
1094         return kvm_s390_cpu_restart(cpu);
1095     }
1096     return -ENOSYS;
1097 }
1098
1099 static inline void s390_io_interrupt(S390CPU *cpu,
1100                                      uint16_t subchannel_id,
1101                                      uint16_t subchannel_nr,
1102                                      uint32_t io_int_parm,
1103                                      uint32_t io_int_word)
1104 {
1105     if (kvm_enabled()) {
1106         kvm_s390_io_interrupt(cpu, subchannel_id, subchannel_nr, io_int_parm,
1107                               io_int_word);
1108     } else {
1109         cpu_inject_io(cpu, subchannel_id, subchannel_nr, io_int_parm,
1110                       io_int_word);
1111     }
1112 }
1113
1114 static inline void s390_crw_mchk(S390CPU *cpu)
1115 {
1116     if (kvm_enabled()) {
1117         kvm_s390_crw_mchk(cpu);
1118     } else {
1119         cpu_inject_crw_mchk(cpu);
1120     }
1121 }
1122
1123 static inline int s390_assign_subch_ioeventfd(EventNotifier *notifier,
1124                                               uint32_t sch_id, int vq,
1125                                               bool assign)
1126 {
1127     if (kvm_enabled()) {
1128         return kvm_s390_assign_subch_ioeventfd(notifier, sch_id, vq, assign);
1129     } else {
1130         return -ENOSYS;
1131     }
1132 }
1133
1134 #endif