1 /* 2 * S/390 virtual CPU header 3 * 4 * Copyright (c) 2009 Ulrich Hecht 5 * Copyright IBM Corp. 2012, 2018 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * Contributions after 2012-10-29 are licensed under the terms of the 18 * GNU GPL, version 2 or (at your option) any later version. 19 * 20 * You should have received a copy of the GNU (Lesser) General Public 21 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 22 */ 23 24 #ifndef S390X_CPU_H 25 #define S390X_CPU_H 26 27 #include "qemu-common.h" 28 #include "cpu-qom.h" 29 #include "cpu_models.h" 30 31 #define TARGET_LONG_BITS 64 32 33 #define ELF_MACHINE_UNAME "S390X" 34 35 #define CPUArchState struct CPUS390XState 36 37 #include "exec/cpu-defs.h" 38 #define TARGET_PAGE_BITS 12 39 40 #define TARGET_PHYS_ADDR_SPACE_BITS 64 41 #define TARGET_VIRT_ADDR_SPACE_BITS 64 42 43 #include "exec/cpu-all.h" 44 45 #define NB_MMU_MODES 4 46 #define TARGET_INSN_START_EXTRA_WORDS 1 47 48 #define MMU_MODE0_SUFFIX _primary 49 #define MMU_MODE1_SUFFIX _secondary 50 #define MMU_MODE2_SUFFIX _home 51 #define MMU_MODE3_SUFFIX _real 52 53 #define MMU_USER_IDX 0 54 55 #define S390_MAX_CPUS 248 56 57 typedef struct PSW { 58 uint64_t mask; 59 uint64_t addr; 60 } PSW; 61 62 struct CPUS390XState { 63 uint64_t regs[16]; /* GP registers */ 64 /* 65 * The floating point registers are part of the vector registers. 66 * vregs[0][0] -> vregs[15][0] are 16 floating point registers 67 */ 68 CPU_DoubleU vregs[32][2]; /* vector registers */ 69 uint32_t aregs[16]; /* access registers */ 70 uint8_t riccb[64]; /* runtime instrumentation control */ 71 uint64_t gscb[4]; /* guarded storage control */ 72 uint64_t etoken; /* etoken */ 73 uint64_t etoken_extension; /* etoken extension */ 74 75 /* Fields up to this point are not cleared by initial CPU reset */ 76 struct {} start_initial_reset_fields; 77 78 uint32_t fpc; /* floating-point control register */ 79 uint32_t cc_op; 80 bool bpbc; /* branch prediction blocking */ 81 82 float_status fpu_status; /* passed to softfloat lib */ 83 84 /* The low part of a 128-bit return, or remainder of a divide. */ 85 uint64_t retxl; 86 87 PSW psw; 88 89 S390CrashReason crash_reason; 90 91 uint64_t cc_src; 92 uint64_t cc_dst; 93 uint64_t cc_vr; 94 95 uint64_t ex_value; 96 97 uint64_t __excp_addr; 98 uint64_t psa; 99 100 uint32_t int_pgm_code; 101 uint32_t int_pgm_ilen; 102 103 uint32_t int_svc_code; 104 uint32_t int_svc_ilen; 105 106 uint64_t per_address; 107 uint16_t per_perc_atmid; 108 109 uint64_t cregs[16]; /* control registers */ 110 111 int pending_int; 112 uint16_t external_call_addr; 113 DECLARE_BITMAP(emergency_signals, S390_MAX_CPUS); 114 115 uint64_t ckc; 116 uint64_t cputm; 117 uint32_t todpr; 118 119 uint64_t pfault_token; 120 uint64_t pfault_compare; 121 uint64_t pfault_select; 122 123 uint64_t gbea; 124 uint64_t pp; 125 126 /* Fields up to this point are cleared by a CPU reset */ 127 struct {} end_reset_fields; 128 129 CPU_COMMON 130 131 #if !defined(CONFIG_USER_ONLY) 132 uint32_t core_id; /* PoP "CPU address", same as cpu_index */ 133 uint64_t cpuid; 134 #endif 135 136 QEMUTimer *tod_timer; 137 138 QEMUTimer *cpu_timer; 139 140 /* 141 * The cpu state represents the logical state of a cpu. In contrast to other 142 * architectures, there is a difference between a halt and a stop on s390. 143 * If all cpus are either stopped (including check stop) or in the disabled 144 * wait state, the vm can be shut down. 145 * The acceptable cpu_state values are defined in the CpuInfoS390State 146 * enum. 147 */ 148 uint8_t cpu_state; 149 150 /* currently processed sigp order */ 151 uint8_t sigp_order; 152 153 }; 154 155 static inline CPU_DoubleU *get_freg(CPUS390XState *cs, int nr) 156 { 157 return &cs->vregs[nr][0]; 158 } 159 160 /** 161 * S390CPU: 162 * @env: #CPUS390XState. 163 * 164 * An S/390 CPU. 165 */ 166 struct S390CPU { 167 /*< private >*/ 168 CPUState parent_obj; 169 /*< public >*/ 170 171 CPUS390XState env; 172 S390CPUModel *model; 173 /* needed for live migration */ 174 void *irqstate; 175 uint32_t irqstate_saved_size; 176 }; 177 178 static inline S390CPU *s390_env_get_cpu(CPUS390XState *env) 179 { 180 return container_of(env, S390CPU, env); 181 } 182 183 #define ENV_GET_CPU(e) CPU(s390_env_get_cpu(e)) 184 185 #define ENV_OFFSET offsetof(S390CPU, env) 186 187 #ifndef CONFIG_USER_ONLY 188 extern const struct VMStateDescription vmstate_s390_cpu; 189 #endif 190 191 /* distinguish between 24 bit and 31 bit addressing */ 192 #define HIGH_ORDER_BIT 0x80000000 193 194 /* Interrupt Codes */ 195 /* Program Interrupts */ 196 #define PGM_OPERATION 0x0001 197 #define PGM_PRIVILEGED 0x0002 198 #define PGM_EXECUTE 0x0003 199 #define PGM_PROTECTION 0x0004 200 #define PGM_ADDRESSING 0x0005 201 #define PGM_SPECIFICATION 0x0006 202 #define PGM_DATA 0x0007 203 #define PGM_FIXPT_OVERFLOW 0x0008 204 #define PGM_FIXPT_DIVIDE 0x0009 205 #define PGM_DEC_OVERFLOW 0x000a 206 #define PGM_DEC_DIVIDE 0x000b 207 #define PGM_HFP_EXP_OVERFLOW 0x000c 208 #define PGM_HFP_EXP_UNDERFLOW 0x000d 209 #define PGM_HFP_SIGNIFICANCE 0x000e 210 #define PGM_HFP_DIVIDE 0x000f 211 #define PGM_SEGMENT_TRANS 0x0010 212 #define PGM_PAGE_TRANS 0x0011 213 #define PGM_TRANS_SPEC 0x0012 214 #define PGM_SPECIAL_OP 0x0013 215 #define PGM_OPERAND 0x0015 216 #define PGM_TRACE_TABLE 0x0016 217 #define PGM_SPACE_SWITCH 0x001c 218 #define PGM_HFP_SQRT 0x001d 219 #define PGM_PC_TRANS_SPEC 0x001f 220 #define PGM_AFX_TRANS 0x0020 221 #define PGM_ASX_TRANS 0x0021 222 #define PGM_LX_TRANS 0x0022 223 #define PGM_EX_TRANS 0x0023 224 #define PGM_PRIM_AUTH 0x0024 225 #define PGM_SEC_AUTH 0x0025 226 #define PGM_ALET_SPEC 0x0028 227 #define PGM_ALEN_SPEC 0x0029 228 #define PGM_ALE_SEQ 0x002a 229 #define PGM_ASTE_VALID 0x002b 230 #define PGM_ASTE_SEQ 0x002c 231 #define PGM_EXT_AUTH 0x002d 232 #define PGM_STACK_FULL 0x0030 233 #define PGM_STACK_EMPTY 0x0031 234 #define PGM_STACK_SPEC 0x0032 235 #define PGM_STACK_TYPE 0x0033 236 #define PGM_STACK_OP 0x0034 237 #define PGM_ASCE_TYPE 0x0038 238 #define PGM_REG_FIRST_TRANS 0x0039 239 #define PGM_REG_SEC_TRANS 0x003a 240 #define PGM_REG_THIRD_TRANS 0x003b 241 #define PGM_MONITOR 0x0040 242 #define PGM_PER 0x0080 243 #define PGM_CRYPTO 0x0119 244 245 /* External Interrupts */ 246 #define EXT_INTERRUPT_KEY 0x0040 247 #define EXT_CLOCK_COMP 0x1004 248 #define EXT_CPU_TIMER 0x1005 249 #define EXT_MALFUNCTION 0x1200 250 #define EXT_EMERGENCY 0x1201 251 #define EXT_EXTERNAL_CALL 0x1202 252 #define EXT_ETR 0x1406 253 #define EXT_SERVICE 0x2401 254 #define EXT_VIRTIO 0x2603 255 256 /* PSW defines */ 257 #undef PSW_MASK_PER 258 #undef PSW_MASK_UNUSED_2 259 #undef PSW_MASK_DAT 260 #undef PSW_MASK_IO 261 #undef PSW_MASK_EXT 262 #undef PSW_MASK_KEY 263 #undef PSW_SHIFT_KEY 264 #undef PSW_MASK_MCHECK 265 #undef PSW_MASK_WAIT 266 #undef PSW_MASK_PSTATE 267 #undef PSW_MASK_ASC 268 #undef PSW_SHIFT_ASC 269 #undef PSW_MASK_CC 270 #undef PSW_MASK_PM 271 #undef PSW_SHIFT_MASK_PM 272 #undef PSW_MASK_64 273 #undef PSW_MASK_32 274 #undef PSW_MASK_ESA_ADDR 275 276 #define PSW_MASK_PER 0x4000000000000000ULL 277 #define PSW_MASK_UNUSED_2 0x2000000000000000ULL 278 #define PSW_MASK_DAT 0x0400000000000000ULL 279 #define PSW_MASK_IO 0x0200000000000000ULL 280 #define PSW_MASK_EXT 0x0100000000000000ULL 281 #define PSW_MASK_KEY 0x00F0000000000000ULL 282 #define PSW_SHIFT_KEY 52 283 #define PSW_MASK_MCHECK 0x0004000000000000ULL 284 #define PSW_MASK_WAIT 0x0002000000000000ULL 285 #define PSW_MASK_PSTATE 0x0001000000000000ULL 286 #define PSW_MASK_ASC 0x0000C00000000000ULL 287 #define PSW_SHIFT_ASC 46 288 #define PSW_MASK_CC 0x0000300000000000ULL 289 #define PSW_MASK_PM 0x00000F0000000000ULL 290 #define PSW_SHIFT_MASK_PM 40 291 #define PSW_MASK_64 0x0000000100000000ULL 292 #define PSW_MASK_32 0x0000000080000000ULL 293 #define PSW_MASK_ESA_ADDR 0x000000007fffffffULL 294 295 #undef PSW_ASC_PRIMARY 296 #undef PSW_ASC_ACCREG 297 #undef PSW_ASC_SECONDARY 298 #undef PSW_ASC_HOME 299 300 #define PSW_ASC_PRIMARY 0x0000000000000000ULL 301 #define PSW_ASC_ACCREG 0x0000400000000000ULL 302 #define PSW_ASC_SECONDARY 0x0000800000000000ULL 303 #define PSW_ASC_HOME 0x0000C00000000000ULL 304 305 /* the address space values shifted */ 306 #define AS_PRIMARY 0 307 #define AS_ACCREG 1 308 #define AS_SECONDARY 2 309 #define AS_HOME 3 310 311 /* tb flags */ 312 313 #define FLAG_MASK_PSW_SHIFT 31 314 #define FLAG_MASK_PER (PSW_MASK_PER >> FLAG_MASK_PSW_SHIFT) 315 #define FLAG_MASK_DAT (PSW_MASK_DAT >> FLAG_MASK_PSW_SHIFT) 316 #define FLAG_MASK_PSTATE (PSW_MASK_PSTATE >> FLAG_MASK_PSW_SHIFT) 317 #define FLAG_MASK_ASC (PSW_MASK_ASC >> FLAG_MASK_PSW_SHIFT) 318 #define FLAG_MASK_64 (PSW_MASK_64 >> FLAG_MASK_PSW_SHIFT) 319 #define FLAG_MASK_32 (PSW_MASK_32 >> FLAG_MASK_PSW_SHIFT) 320 #define FLAG_MASK_PSW (FLAG_MASK_PER | FLAG_MASK_DAT | FLAG_MASK_PSTATE \ 321 | FLAG_MASK_ASC | FLAG_MASK_64 | FLAG_MASK_32) 322 323 /* we'll use some unused PSW positions to store CR flags in tb flags */ 324 #define FLAG_MASK_AFP (PSW_MASK_UNUSED_2 >> FLAG_MASK_PSW_SHIFT) 325 326 /* Control register 0 bits */ 327 #define CR0_LOWPROT 0x0000000010000000ULL 328 #define CR0_SECONDARY 0x0000000004000000ULL 329 #define CR0_EDAT 0x0000000000800000ULL 330 #define CR0_AFP 0x0000000000040000ULL 331 #define CR0_EMERGENCY_SIGNAL_SC 0x0000000000004000ULL 332 #define CR0_EXTERNAL_CALL_SC 0x0000000000002000ULL 333 #define CR0_CKC_SC 0x0000000000000800ULL 334 #define CR0_CPU_TIMER_SC 0x0000000000000400ULL 335 #define CR0_SERVICE_SC 0x0000000000000200ULL 336 337 /* Control register 14 bits */ 338 #define CR14_CHANNEL_REPORT_SC 0x0000000010000000ULL 339 340 /* MMU */ 341 #define MMU_PRIMARY_IDX 0 342 #define MMU_SECONDARY_IDX 1 343 #define MMU_HOME_IDX 2 344 #define MMU_REAL_IDX 3 345 346 static inline int cpu_mmu_index(CPUS390XState *env, bool ifetch) 347 { 348 if (!(env->psw.mask & PSW_MASK_DAT)) { 349 return MMU_REAL_IDX; 350 } 351 352 switch (env->psw.mask & PSW_MASK_ASC) { 353 case PSW_ASC_PRIMARY: 354 return MMU_PRIMARY_IDX; 355 case PSW_ASC_SECONDARY: 356 return MMU_SECONDARY_IDX; 357 case PSW_ASC_HOME: 358 return MMU_HOME_IDX; 359 case PSW_ASC_ACCREG: 360 /* Fallthrough: access register mode is not yet supported */ 361 default: 362 abort(); 363 } 364 } 365 366 static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc, 367 target_ulong *cs_base, uint32_t *flags) 368 { 369 *pc = env->psw.addr; 370 *cs_base = env->ex_value; 371 *flags = (env->psw.mask >> FLAG_MASK_PSW_SHIFT) & FLAG_MASK_PSW; 372 if (env->cregs[0] & CR0_AFP) { 373 *flags |= FLAG_MASK_AFP; 374 } 375 } 376 377 /* PER bits from control register 9 */ 378 #define PER_CR9_EVENT_BRANCH 0x80000000 379 #define PER_CR9_EVENT_IFETCH 0x40000000 380 #define PER_CR9_EVENT_STORE 0x20000000 381 #define PER_CR9_EVENT_STORE_REAL 0x08000000 382 #define PER_CR9_EVENT_NULLIFICATION 0x01000000 383 #define PER_CR9_CONTROL_BRANCH_ADDRESS 0x00800000 384 #define PER_CR9_CONTROL_ALTERATION 0x00200000 385 386 /* PER bits from the PER CODE/ATMID/AI in lowcore */ 387 #define PER_CODE_EVENT_BRANCH 0x8000 388 #define PER_CODE_EVENT_IFETCH 0x4000 389 #define PER_CODE_EVENT_STORE 0x2000 390 #define PER_CODE_EVENT_STORE_REAL 0x0800 391 #define PER_CODE_EVENT_NULLIFICATION 0x0100 392 393 #define EXCP_EXT 1 /* external interrupt */ 394 #define EXCP_SVC 2 /* supervisor call (syscall) */ 395 #define EXCP_PGM 3 /* program interruption */ 396 #define EXCP_RESTART 4 /* restart interrupt */ 397 #define EXCP_STOP 5 /* stop interrupt */ 398 #define EXCP_IO 7 /* I/O interrupt */ 399 #define EXCP_MCHK 8 /* machine check */ 400 401 #define INTERRUPT_EXT_CPU_TIMER (1 << 3) 402 #define INTERRUPT_EXT_CLOCK_COMPARATOR (1 << 4) 403 #define INTERRUPT_EXTERNAL_CALL (1 << 5) 404 #define INTERRUPT_EMERGENCY_SIGNAL (1 << 6) 405 #define INTERRUPT_RESTART (1 << 7) 406 #define INTERRUPT_STOP (1 << 8) 407 408 /* Program Status Word. */ 409 #define S390_PSWM_REGNUM 0 410 #define S390_PSWA_REGNUM 1 411 /* General Purpose Registers. */ 412 #define S390_R0_REGNUM 2 413 #define S390_R1_REGNUM 3 414 #define S390_R2_REGNUM 4 415 #define S390_R3_REGNUM 5 416 #define S390_R4_REGNUM 6 417 #define S390_R5_REGNUM 7 418 #define S390_R6_REGNUM 8 419 #define S390_R7_REGNUM 9 420 #define S390_R8_REGNUM 10 421 #define S390_R9_REGNUM 11 422 #define S390_R10_REGNUM 12 423 #define S390_R11_REGNUM 13 424 #define S390_R12_REGNUM 14 425 #define S390_R13_REGNUM 15 426 #define S390_R14_REGNUM 16 427 #define S390_R15_REGNUM 17 428 /* Total Core Registers. */ 429 #define S390_NUM_CORE_REGS 18 430 431 static inline void setcc(S390CPU *cpu, uint64_t cc) 432 { 433 CPUS390XState *env = &cpu->env; 434 435 env->psw.mask &= ~(3ull << 44); 436 env->psw.mask |= (cc & 3) << 44; 437 env->cc_op = cc; 438 } 439 440 /* STSI */ 441 #define STSI_R0_FC_MASK 0x00000000f0000000ULL 442 #define STSI_R0_FC_CURRENT 0x0000000000000000ULL 443 #define STSI_R0_FC_LEVEL_1 0x0000000010000000ULL 444 #define STSI_R0_FC_LEVEL_2 0x0000000020000000ULL 445 #define STSI_R0_FC_LEVEL_3 0x0000000030000000ULL 446 #define STSI_R0_RESERVED_MASK 0x000000000fffff00ULL 447 #define STSI_R0_SEL1_MASK 0x00000000000000ffULL 448 #define STSI_R1_RESERVED_MASK 0x00000000ffff0000ULL 449 #define STSI_R1_SEL2_MASK 0x000000000000ffffULL 450 451 /* Basic Machine Configuration */ 452 typedef struct SysIB_111 { 453 uint8_t res1[32]; 454 uint8_t manuf[16]; 455 uint8_t type[4]; 456 uint8_t res2[12]; 457 uint8_t model[16]; 458 uint8_t sequence[16]; 459 uint8_t plant[4]; 460 uint8_t res3[3996]; 461 } SysIB_111; 462 QEMU_BUILD_BUG_ON(sizeof(SysIB_111) != 4096); 463 464 /* Basic Machine CPU */ 465 typedef struct SysIB_121 { 466 uint8_t res1[80]; 467 uint8_t sequence[16]; 468 uint8_t plant[4]; 469 uint8_t res2[2]; 470 uint16_t cpu_addr; 471 uint8_t res3[3992]; 472 } SysIB_121; 473 QEMU_BUILD_BUG_ON(sizeof(SysIB_121) != 4096); 474 475 /* Basic Machine CPUs */ 476 typedef struct SysIB_122 { 477 uint8_t res1[32]; 478 uint32_t capability; 479 uint16_t total_cpus; 480 uint16_t conf_cpus; 481 uint16_t standby_cpus; 482 uint16_t reserved_cpus; 483 uint16_t adjustments[2026]; 484 } SysIB_122; 485 QEMU_BUILD_BUG_ON(sizeof(SysIB_122) != 4096); 486 487 /* LPAR CPU */ 488 typedef struct SysIB_221 { 489 uint8_t res1[80]; 490 uint8_t sequence[16]; 491 uint8_t plant[4]; 492 uint16_t cpu_id; 493 uint16_t cpu_addr; 494 uint8_t res3[3992]; 495 } SysIB_221; 496 QEMU_BUILD_BUG_ON(sizeof(SysIB_221) != 4096); 497 498 /* LPAR CPUs */ 499 typedef struct SysIB_222 { 500 uint8_t res1[32]; 501 uint16_t lpar_num; 502 uint8_t res2; 503 uint8_t lcpuc; 504 uint16_t total_cpus; 505 uint16_t conf_cpus; 506 uint16_t standby_cpus; 507 uint16_t reserved_cpus; 508 uint8_t name[8]; 509 uint32_t caf; 510 uint8_t res3[16]; 511 uint16_t dedicated_cpus; 512 uint16_t shared_cpus; 513 uint8_t res4[4020]; 514 } SysIB_222; 515 QEMU_BUILD_BUG_ON(sizeof(SysIB_222) != 4096); 516 517 /* VM CPUs */ 518 typedef struct SysIB_322 { 519 uint8_t res1[31]; 520 uint8_t count; 521 struct { 522 uint8_t res2[4]; 523 uint16_t total_cpus; 524 uint16_t conf_cpus; 525 uint16_t standby_cpus; 526 uint16_t reserved_cpus; 527 uint8_t name[8]; 528 uint32_t caf; 529 uint8_t cpi[16]; 530 uint8_t res5[3]; 531 uint8_t ext_name_encoding; 532 uint32_t res3; 533 uint8_t uuid[16]; 534 } vm[8]; 535 uint8_t res4[1504]; 536 uint8_t ext_names[8][256]; 537 } SysIB_322; 538 QEMU_BUILD_BUG_ON(sizeof(SysIB_322) != 4096); 539 540 typedef union SysIB { 541 SysIB_111 sysib_111; 542 SysIB_121 sysib_121; 543 SysIB_122 sysib_122; 544 SysIB_221 sysib_221; 545 SysIB_222 sysib_222; 546 SysIB_322 sysib_322; 547 } SysIB; 548 QEMU_BUILD_BUG_ON(sizeof(SysIB) != 4096); 549 550 /* MMU defines */ 551 #define ASCE_ORIGIN (~0xfffULL) /* segment table origin */ 552 #define ASCE_SUBSPACE 0x200 /* subspace group control */ 553 #define ASCE_PRIVATE_SPACE 0x100 /* private space control */ 554 #define ASCE_ALT_EVENT 0x80 /* storage alteration event control */ 555 #define ASCE_SPACE_SWITCH 0x40 /* space switch event */ 556 #define ASCE_REAL_SPACE 0x20 /* real space control */ 557 #define ASCE_TYPE_MASK 0x0c /* asce table type mask */ 558 #define ASCE_TYPE_REGION1 0x0c /* region first table type */ 559 #define ASCE_TYPE_REGION2 0x08 /* region second table type */ 560 #define ASCE_TYPE_REGION3 0x04 /* region third table type */ 561 #define ASCE_TYPE_SEGMENT 0x00 /* segment table type */ 562 #define ASCE_TABLE_LENGTH 0x03 /* region table length */ 563 564 #define REGION_ENTRY_ORIGIN (~0xfffULL) /* region/segment table origin */ 565 #define REGION_ENTRY_RO 0x200 /* region/segment protection bit */ 566 #define REGION_ENTRY_TF 0xc0 /* region/segment table offset */ 567 #define REGION_ENTRY_INV 0x20 /* invalid region table entry */ 568 #define REGION_ENTRY_TYPE_MASK 0x0c /* region/segment table type mask */ 569 #define REGION_ENTRY_TYPE_R1 0x0c /* region first table type */ 570 #define REGION_ENTRY_TYPE_R2 0x08 /* region second table type */ 571 #define REGION_ENTRY_TYPE_R3 0x04 /* region third table type */ 572 #define REGION_ENTRY_LENGTH 0x03 /* region third length */ 573 574 #define SEGMENT_ENTRY_ORIGIN (~0x7ffULL) /* segment table origin */ 575 #define SEGMENT_ENTRY_FC 0x400 /* format control */ 576 #define SEGMENT_ENTRY_RO 0x200 /* page protection bit */ 577 #define SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ 578 579 #define VADDR_PX 0xff000 /* page index bits */ 580 581 #define PAGE_RO 0x200 /* HW read-only bit */ 582 #define PAGE_INVALID 0x400 /* HW invalid bit */ 583 #define PAGE_RES0 0x800 /* bit must be zero */ 584 585 #define SK_C (0x1 << 1) 586 #define SK_R (0x1 << 2) 587 #define SK_F (0x1 << 3) 588 #define SK_ACC_MASK (0xf << 4) 589 590 /* SIGP order codes */ 591 #define SIGP_SENSE 0x01 592 #define SIGP_EXTERNAL_CALL 0x02 593 #define SIGP_EMERGENCY 0x03 594 #define SIGP_START 0x04 595 #define SIGP_STOP 0x05 596 #define SIGP_RESTART 0x06 597 #define SIGP_STOP_STORE_STATUS 0x09 598 #define SIGP_INITIAL_CPU_RESET 0x0b 599 #define SIGP_CPU_RESET 0x0c 600 #define SIGP_SET_PREFIX 0x0d 601 #define SIGP_STORE_STATUS_ADDR 0x0e 602 #define SIGP_SET_ARCH 0x12 603 #define SIGP_COND_EMERGENCY 0x13 604 #define SIGP_SENSE_RUNNING 0x15 605 #define SIGP_STORE_ADTL_STATUS 0x17 606 607 /* SIGP condition codes */ 608 #define SIGP_CC_ORDER_CODE_ACCEPTED 0 609 #define SIGP_CC_STATUS_STORED 1 610 #define SIGP_CC_BUSY 2 611 #define SIGP_CC_NOT_OPERATIONAL 3 612 613 /* SIGP status bits */ 614 #define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL 615 #define SIGP_STAT_NOT_RUNNING 0x00000400UL 616 #define SIGP_STAT_INCORRECT_STATE 0x00000200UL 617 #define SIGP_STAT_INVALID_PARAMETER 0x00000100UL 618 #define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL 619 #define SIGP_STAT_STOPPED 0x00000040UL 620 #define SIGP_STAT_OPERATOR_INTERV 0x00000020UL 621 #define SIGP_STAT_CHECK_STOP 0x00000010UL 622 #define SIGP_STAT_INOPERATIVE 0x00000004UL 623 #define SIGP_STAT_INVALID_ORDER 0x00000002UL 624 #define SIGP_STAT_RECEIVER_CHECK 0x00000001UL 625 626 /* SIGP SET ARCHITECTURE modes */ 627 #define SIGP_MODE_ESA_S390 0 628 #define SIGP_MODE_Z_ARCH_TRANS_ALL_PSW 1 629 #define SIGP_MODE_Z_ARCH_TRANS_CUR_PSW 2 630 631 /* SIGP order code mask corresponding to bit positions 56-63 */ 632 #define SIGP_ORDER_MASK 0x000000ff 633 634 /* machine check interruption code */ 635 636 /* subclasses */ 637 #define MCIC_SC_SD 0x8000000000000000ULL 638 #define MCIC_SC_PD 0x4000000000000000ULL 639 #define MCIC_SC_SR 0x2000000000000000ULL 640 #define MCIC_SC_CD 0x0800000000000000ULL 641 #define MCIC_SC_ED 0x0400000000000000ULL 642 #define MCIC_SC_DG 0x0100000000000000ULL 643 #define MCIC_SC_W 0x0080000000000000ULL 644 #define MCIC_SC_CP 0x0040000000000000ULL 645 #define MCIC_SC_SP 0x0020000000000000ULL 646 #define MCIC_SC_CK 0x0010000000000000ULL 647 648 /* subclass modifiers */ 649 #define MCIC_SCM_B 0x0002000000000000ULL 650 #define MCIC_SCM_DA 0x0000000020000000ULL 651 #define MCIC_SCM_AP 0x0000000000080000ULL 652 653 /* storage errors */ 654 #define MCIC_SE_SE 0x0000800000000000ULL 655 #define MCIC_SE_SC 0x0000400000000000ULL 656 #define MCIC_SE_KE 0x0000200000000000ULL 657 #define MCIC_SE_DS 0x0000100000000000ULL 658 #define MCIC_SE_IE 0x0000000080000000ULL 659 660 /* validity bits */ 661 #define MCIC_VB_WP 0x0000080000000000ULL 662 #define MCIC_VB_MS 0x0000040000000000ULL 663 #define MCIC_VB_PM 0x0000020000000000ULL 664 #define MCIC_VB_IA 0x0000010000000000ULL 665 #define MCIC_VB_FA 0x0000008000000000ULL 666 #define MCIC_VB_VR 0x0000004000000000ULL 667 #define MCIC_VB_EC 0x0000002000000000ULL 668 #define MCIC_VB_FP 0x0000001000000000ULL 669 #define MCIC_VB_GR 0x0000000800000000ULL 670 #define MCIC_VB_CR 0x0000000400000000ULL 671 #define MCIC_VB_ST 0x0000000100000000ULL 672 #define MCIC_VB_AR 0x0000000040000000ULL 673 #define MCIC_VB_GS 0x0000000008000000ULL 674 #define MCIC_VB_PR 0x0000000000200000ULL 675 #define MCIC_VB_FC 0x0000000000100000ULL 676 #define MCIC_VB_CT 0x0000000000020000ULL 677 #define MCIC_VB_CC 0x0000000000010000ULL 678 679 static inline uint64_t s390_build_validity_mcic(void) 680 { 681 uint64_t mcic; 682 683 /* 684 * Indicate all validity bits (no damage) only. Other bits have to be 685 * added by the caller. (storage errors, subclasses and subclass modifiers) 686 */ 687 mcic = MCIC_VB_WP | MCIC_VB_MS | MCIC_VB_PM | MCIC_VB_IA | MCIC_VB_FP | 688 MCIC_VB_GR | MCIC_VB_CR | MCIC_VB_ST | MCIC_VB_AR | MCIC_VB_PR | 689 MCIC_VB_FC | MCIC_VB_CT | MCIC_VB_CC; 690 if (s390_has_feat(S390_FEAT_VECTOR)) { 691 mcic |= MCIC_VB_VR; 692 } 693 if (s390_has_feat(S390_FEAT_GUARDED_STORAGE)) { 694 mcic |= MCIC_VB_GS; 695 } 696 return mcic; 697 } 698 699 static inline void s390_do_cpu_full_reset(CPUState *cs, run_on_cpu_data arg) 700 { 701 cpu_reset(cs); 702 } 703 704 static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg) 705 { 706 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 707 708 scc->cpu_reset(cs); 709 } 710 711 static inline void s390_do_cpu_initial_reset(CPUState *cs, run_on_cpu_data arg) 712 { 713 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 714 715 scc->initial_cpu_reset(cs); 716 } 717 718 static inline void s390_do_cpu_load_normal(CPUState *cs, run_on_cpu_data arg) 719 { 720 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 721 722 scc->load_normal(cs); 723 } 724 725 726 /* cpu.c */ 727 void s390_crypto_reset(void); 728 int s390_set_memory_limit(uint64_t new_limit, uint64_t *hw_limit); 729 void s390_cmma_reset(void); 730 void s390_enable_css_support(S390CPU *cpu); 731 int s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch_id, 732 int vq, bool assign); 733 #ifndef CONFIG_USER_ONLY 734 unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu); 735 #else 736 static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) 737 { 738 return 0; 739 } 740 #endif /* CONFIG_USER_ONLY */ 741 static inline uint8_t s390_cpu_get_state(S390CPU *cpu) 742 { 743 return cpu->env.cpu_state; 744 } 745 746 747 /* cpu_models.c */ 748 void s390_cpu_list(FILE *f, fprintf_function cpu_fprintf); 749 #define cpu_list s390_cpu_list 750 void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga, 751 const S390FeatInit feat_init); 752 753 754 /* helper.c */ 755 #define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU 756 #define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX) 757 #define CPU_RESOLVING_TYPE TYPE_S390_CPU 758 759 /* you can call this signal handler from your SIGBUS and SIGSEGV 760 signal handlers to inform the virtual CPU of exceptions. non zero 761 is returned if the signal was handled by the virtual CPU. */ 762 int cpu_s390x_signal_handler(int host_signum, void *pinfo, void *puc); 763 #define cpu_signal_handler cpu_s390x_signal_handler 764 765 766 /* interrupt.c */ 767 void s390_crw_mchk(void); 768 void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr, 769 uint32_t io_int_parm, uint32_t io_int_word); 770 /* automatically detect the instruction length */ 771 #define ILEN_AUTO 0xff 772 #define RA_IGNORED 0 773 void s390_program_interrupt(CPUS390XState *env, uint32_t code, int ilen, 774 uintptr_t ra); 775 /* service interrupts are floating therefore we must not pass an cpustate */ 776 void s390_sclp_extint(uint32_t parm); 777 778 /* mmu_helper.c */ 779 int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf, 780 int len, bool is_write); 781 #define s390_cpu_virt_mem_read(cpu, laddr, ar, dest, len) \ 782 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, false) 783 #define s390_cpu_virt_mem_write(cpu, laddr, ar, dest, len) \ 784 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, true) 785 #define s390_cpu_virt_mem_check_read(cpu, laddr, ar, len) \ 786 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, false) 787 #define s390_cpu_virt_mem_check_write(cpu, laddr, ar, len) \ 788 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, true) 789 void s390_cpu_virt_mem_handle_exc(S390CPU *cpu, uintptr_t ra); 790 791 792 /* sigp.c */ 793 int s390_cpu_restart(S390CPU *cpu); 794 void s390_init_sigp(void); 795 796 797 /* outside of target/s390x/ */ 798 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr); 799 800 #endif 801