1 /* 2 * S/390 virtual CPU header 3 * 4 * Copyright (c) 2009 Ulrich Hecht 5 * Copyright IBM Corp. 2012, 2018 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program 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 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #ifndef S390X_CPU_H 22 #define S390X_CPU_H 23 24 #include "cpu-qom.h" 25 #include "cpu_models.h" 26 #include "exec/cpu-defs.h" 27 28 #define ELF_MACHINE_UNAME "S390X" 29 30 /* The z/Architecture has a strong memory model with some store-after-load re-ordering */ 31 #define TCG_GUEST_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD) 32 33 #define TARGET_INSN_START_EXTRA_WORDS 1 34 35 #define MMU_MODE0_SUFFIX _primary 36 #define MMU_MODE1_SUFFIX _secondary 37 #define MMU_MODE2_SUFFIX _home 38 #define MMU_MODE3_SUFFIX _real 39 40 #define MMU_USER_IDX 0 41 42 #define S390_MAX_CPUS 248 43 44 typedef struct PSW { 45 uint64_t mask; 46 uint64_t addr; 47 } PSW; 48 49 struct CPUS390XState { 50 uint64_t regs[16]; /* GP registers */ 51 /* 52 * The floating point registers are part of the vector registers. 53 * vregs[0][0] -> vregs[15][0] are 16 floating point registers 54 */ 55 uint64_t vregs[32][2] QEMU_ALIGNED(16); /* vector registers */ 56 uint32_t aregs[16]; /* access registers */ 57 uint8_t riccb[64]; /* runtime instrumentation control */ 58 uint64_t gscb[4]; /* guarded storage control */ 59 uint64_t etoken; /* etoken */ 60 uint64_t etoken_extension; /* etoken extension */ 61 62 /* Fields up to this point are not cleared by initial CPU reset */ 63 struct {} start_initial_reset_fields; 64 65 uint32_t fpc; /* floating-point control register */ 66 uint32_t cc_op; 67 bool bpbc; /* branch prediction blocking */ 68 69 float_status fpu_status; /* passed to softfloat lib */ 70 71 /* The low part of a 128-bit return, or remainder of a divide. */ 72 uint64_t retxl; 73 74 PSW psw; 75 76 S390CrashReason crash_reason; 77 78 uint64_t cc_src; 79 uint64_t cc_dst; 80 uint64_t cc_vr; 81 82 uint64_t ex_value; 83 84 uint64_t __excp_addr; 85 uint64_t psa; 86 87 uint32_t int_pgm_code; 88 uint32_t int_pgm_ilen; 89 90 uint32_t int_svc_code; 91 uint32_t int_svc_ilen; 92 93 uint64_t per_address; 94 uint16_t per_perc_atmid; 95 96 uint64_t cregs[16]; /* control registers */ 97 98 int pending_int; 99 uint16_t external_call_addr; 100 DECLARE_BITMAP(emergency_signals, S390_MAX_CPUS); 101 102 uint64_t ckc; 103 uint64_t cputm; 104 uint32_t todpr; 105 106 uint64_t pfault_token; 107 uint64_t pfault_compare; 108 uint64_t pfault_select; 109 110 uint64_t gbea; 111 uint64_t pp; 112 113 /* Fields up to this point are cleared by a CPU reset */ 114 struct {} end_reset_fields; 115 116 #if !defined(CONFIG_USER_ONLY) 117 uint32_t core_id; /* PoP "CPU address", same as cpu_index */ 118 uint64_t cpuid; 119 #endif 120 121 QEMUTimer *tod_timer; 122 123 QEMUTimer *cpu_timer; 124 125 /* 126 * The cpu state represents the logical state of a cpu. In contrast to other 127 * architectures, there is a difference between a halt and a stop on s390. 128 * If all cpus are either stopped (including check stop) or in the disabled 129 * wait state, the vm can be shut down. 130 * The acceptable cpu_state values are defined in the CpuInfoS390State 131 * enum. 132 */ 133 uint8_t cpu_state; 134 135 /* currently processed sigp order */ 136 uint8_t sigp_order; 137 138 }; 139 140 static inline uint64_t *get_freg(CPUS390XState *cs, int nr) 141 { 142 return &cs->vregs[nr][0]; 143 } 144 145 /** 146 * S390CPU: 147 * @env: #CPUS390XState. 148 * 149 * An S/390 CPU. 150 */ 151 struct S390CPU { 152 /*< private >*/ 153 CPUState parent_obj; 154 /*< public >*/ 155 156 CPUNegativeOffsetState neg; 157 CPUS390XState env; 158 S390CPUModel *model; 159 /* needed for live migration */ 160 void *irqstate; 161 uint32_t irqstate_saved_size; 162 }; 163 164 165 #ifndef CONFIG_USER_ONLY 166 extern const VMStateDescription vmstate_s390_cpu; 167 #endif 168 169 /* distinguish between 24 bit and 31 bit addressing */ 170 #define HIGH_ORDER_BIT 0x80000000 171 172 /* Interrupt Codes */ 173 /* Program Interrupts */ 174 #define PGM_OPERATION 0x0001 175 #define PGM_PRIVILEGED 0x0002 176 #define PGM_EXECUTE 0x0003 177 #define PGM_PROTECTION 0x0004 178 #define PGM_ADDRESSING 0x0005 179 #define PGM_SPECIFICATION 0x0006 180 #define PGM_DATA 0x0007 181 #define PGM_FIXPT_OVERFLOW 0x0008 182 #define PGM_FIXPT_DIVIDE 0x0009 183 #define PGM_DEC_OVERFLOW 0x000a 184 #define PGM_DEC_DIVIDE 0x000b 185 #define PGM_HFP_EXP_OVERFLOW 0x000c 186 #define PGM_HFP_EXP_UNDERFLOW 0x000d 187 #define PGM_HFP_SIGNIFICANCE 0x000e 188 #define PGM_HFP_DIVIDE 0x000f 189 #define PGM_SEGMENT_TRANS 0x0010 190 #define PGM_PAGE_TRANS 0x0011 191 #define PGM_TRANS_SPEC 0x0012 192 #define PGM_SPECIAL_OP 0x0013 193 #define PGM_OPERAND 0x0015 194 #define PGM_TRACE_TABLE 0x0016 195 #define PGM_VECTOR_PROCESSING 0x001b 196 #define PGM_SPACE_SWITCH 0x001c 197 #define PGM_HFP_SQRT 0x001d 198 #define PGM_PC_TRANS_SPEC 0x001f 199 #define PGM_AFX_TRANS 0x0020 200 #define PGM_ASX_TRANS 0x0021 201 #define PGM_LX_TRANS 0x0022 202 #define PGM_EX_TRANS 0x0023 203 #define PGM_PRIM_AUTH 0x0024 204 #define PGM_SEC_AUTH 0x0025 205 #define PGM_ALET_SPEC 0x0028 206 #define PGM_ALEN_SPEC 0x0029 207 #define PGM_ALE_SEQ 0x002a 208 #define PGM_ASTE_VALID 0x002b 209 #define PGM_ASTE_SEQ 0x002c 210 #define PGM_EXT_AUTH 0x002d 211 #define PGM_STACK_FULL 0x0030 212 #define PGM_STACK_EMPTY 0x0031 213 #define PGM_STACK_SPEC 0x0032 214 #define PGM_STACK_TYPE 0x0033 215 #define PGM_STACK_OP 0x0034 216 #define PGM_ASCE_TYPE 0x0038 217 #define PGM_REG_FIRST_TRANS 0x0039 218 #define PGM_REG_SEC_TRANS 0x003a 219 #define PGM_REG_THIRD_TRANS 0x003b 220 #define PGM_MONITOR 0x0040 221 #define PGM_PER 0x0080 222 #define PGM_CRYPTO 0x0119 223 224 /* External Interrupts */ 225 #define EXT_INTERRUPT_KEY 0x0040 226 #define EXT_CLOCK_COMP 0x1004 227 #define EXT_CPU_TIMER 0x1005 228 #define EXT_MALFUNCTION 0x1200 229 #define EXT_EMERGENCY 0x1201 230 #define EXT_EXTERNAL_CALL 0x1202 231 #define EXT_ETR 0x1406 232 #define EXT_SERVICE 0x2401 233 #define EXT_VIRTIO 0x2603 234 235 /* PSW defines */ 236 #undef PSW_MASK_PER 237 #undef PSW_MASK_UNUSED_2 238 #undef PSW_MASK_UNUSED_3 239 #undef PSW_MASK_DAT 240 #undef PSW_MASK_IO 241 #undef PSW_MASK_EXT 242 #undef PSW_MASK_KEY 243 #undef PSW_SHIFT_KEY 244 #undef PSW_MASK_MCHECK 245 #undef PSW_MASK_WAIT 246 #undef PSW_MASK_PSTATE 247 #undef PSW_MASK_ASC 248 #undef PSW_SHIFT_ASC 249 #undef PSW_MASK_CC 250 #undef PSW_MASK_PM 251 #undef PSW_SHIFT_MASK_PM 252 #undef PSW_MASK_64 253 #undef PSW_MASK_32 254 #undef PSW_MASK_ESA_ADDR 255 256 #define PSW_MASK_PER 0x4000000000000000ULL 257 #define PSW_MASK_UNUSED_2 0x2000000000000000ULL 258 #define PSW_MASK_UNUSED_3 0x1000000000000000ULL 259 #define PSW_MASK_DAT 0x0400000000000000ULL 260 #define PSW_MASK_IO 0x0200000000000000ULL 261 #define PSW_MASK_EXT 0x0100000000000000ULL 262 #define PSW_MASK_KEY 0x00F0000000000000ULL 263 #define PSW_SHIFT_KEY 52 264 #define PSW_MASK_MCHECK 0x0004000000000000ULL 265 #define PSW_MASK_WAIT 0x0002000000000000ULL 266 #define PSW_MASK_PSTATE 0x0001000000000000ULL 267 #define PSW_MASK_ASC 0x0000C00000000000ULL 268 #define PSW_SHIFT_ASC 46 269 #define PSW_MASK_CC 0x0000300000000000ULL 270 #define PSW_MASK_PM 0x00000F0000000000ULL 271 #define PSW_SHIFT_MASK_PM 40 272 #define PSW_MASK_64 0x0000000100000000ULL 273 #define PSW_MASK_32 0x0000000080000000ULL 274 #define PSW_MASK_ESA_ADDR 0x000000007fffffffULL 275 276 #undef PSW_ASC_PRIMARY 277 #undef PSW_ASC_ACCREG 278 #undef PSW_ASC_SECONDARY 279 #undef PSW_ASC_HOME 280 281 #define PSW_ASC_PRIMARY 0x0000000000000000ULL 282 #define PSW_ASC_ACCREG 0x0000400000000000ULL 283 #define PSW_ASC_SECONDARY 0x0000800000000000ULL 284 #define PSW_ASC_HOME 0x0000C00000000000ULL 285 286 /* the address space values shifted */ 287 #define AS_PRIMARY 0 288 #define AS_ACCREG 1 289 #define AS_SECONDARY 2 290 #define AS_HOME 3 291 292 /* tb flags */ 293 294 #define FLAG_MASK_PSW_SHIFT 31 295 #define FLAG_MASK_PER (PSW_MASK_PER >> FLAG_MASK_PSW_SHIFT) 296 #define FLAG_MASK_DAT (PSW_MASK_DAT >> FLAG_MASK_PSW_SHIFT) 297 #define FLAG_MASK_PSTATE (PSW_MASK_PSTATE >> FLAG_MASK_PSW_SHIFT) 298 #define FLAG_MASK_ASC (PSW_MASK_ASC >> FLAG_MASK_PSW_SHIFT) 299 #define FLAG_MASK_64 (PSW_MASK_64 >> FLAG_MASK_PSW_SHIFT) 300 #define FLAG_MASK_32 (PSW_MASK_32 >> FLAG_MASK_PSW_SHIFT) 301 #define FLAG_MASK_PSW (FLAG_MASK_PER | FLAG_MASK_DAT | FLAG_MASK_PSTATE \ 302 | FLAG_MASK_ASC | FLAG_MASK_64 | FLAG_MASK_32) 303 304 /* we'll use some unused PSW positions to store CR flags in tb flags */ 305 #define FLAG_MASK_AFP (PSW_MASK_UNUSED_2 >> FLAG_MASK_PSW_SHIFT) 306 #define FLAG_MASK_VECTOR (PSW_MASK_UNUSED_3 >> FLAG_MASK_PSW_SHIFT) 307 308 /* Control register 0 bits */ 309 #define CR0_LOWPROT 0x0000000010000000ULL 310 #define CR0_SECONDARY 0x0000000004000000ULL 311 #define CR0_EDAT 0x0000000000800000ULL 312 #define CR0_AFP 0x0000000000040000ULL 313 #define CR0_VECTOR 0x0000000000020000ULL 314 #define CR0_EMERGENCY_SIGNAL_SC 0x0000000000004000ULL 315 #define CR0_EXTERNAL_CALL_SC 0x0000000000002000ULL 316 #define CR0_CKC_SC 0x0000000000000800ULL 317 #define CR0_CPU_TIMER_SC 0x0000000000000400ULL 318 #define CR0_SERVICE_SC 0x0000000000000200ULL 319 320 /* Control register 14 bits */ 321 #define CR14_CHANNEL_REPORT_SC 0x0000000010000000ULL 322 323 /* MMU */ 324 #define MMU_PRIMARY_IDX 0 325 #define MMU_SECONDARY_IDX 1 326 #define MMU_HOME_IDX 2 327 #define MMU_REAL_IDX 3 328 329 static inline int cpu_mmu_index(CPUS390XState *env, bool ifetch) 330 { 331 if (!(env->psw.mask & PSW_MASK_DAT)) { 332 return MMU_REAL_IDX; 333 } 334 335 if (ifetch) { 336 if ((env->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME) { 337 return MMU_HOME_IDX; 338 } 339 return MMU_PRIMARY_IDX; 340 } 341 342 switch (env->psw.mask & PSW_MASK_ASC) { 343 case PSW_ASC_PRIMARY: 344 return MMU_PRIMARY_IDX; 345 case PSW_ASC_SECONDARY: 346 return MMU_SECONDARY_IDX; 347 case PSW_ASC_HOME: 348 return MMU_HOME_IDX; 349 case PSW_ASC_ACCREG: 350 /* Fallthrough: access register mode is not yet supported */ 351 default: 352 abort(); 353 } 354 } 355 356 static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc, 357 target_ulong *cs_base, uint32_t *flags) 358 { 359 *pc = env->psw.addr; 360 *cs_base = env->ex_value; 361 *flags = (env->psw.mask >> FLAG_MASK_PSW_SHIFT) & FLAG_MASK_PSW; 362 if (env->cregs[0] & CR0_AFP) { 363 *flags |= FLAG_MASK_AFP; 364 } 365 if (env->cregs[0] & CR0_VECTOR) { 366 *flags |= FLAG_MASK_VECTOR; 367 } 368 } 369 370 /* PER bits from control register 9 */ 371 #define PER_CR9_EVENT_BRANCH 0x80000000 372 #define PER_CR9_EVENT_IFETCH 0x40000000 373 #define PER_CR9_EVENT_STORE 0x20000000 374 #define PER_CR9_EVENT_STORE_REAL 0x08000000 375 #define PER_CR9_EVENT_NULLIFICATION 0x01000000 376 #define PER_CR9_CONTROL_BRANCH_ADDRESS 0x00800000 377 #define PER_CR9_CONTROL_ALTERATION 0x00200000 378 379 /* PER bits from the PER CODE/ATMID/AI in lowcore */ 380 #define PER_CODE_EVENT_BRANCH 0x8000 381 #define PER_CODE_EVENT_IFETCH 0x4000 382 #define PER_CODE_EVENT_STORE 0x2000 383 #define PER_CODE_EVENT_STORE_REAL 0x0800 384 #define PER_CODE_EVENT_NULLIFICATION 0x0100 385 386 #define EXCP_EXT 1 /* external interrupt */ 387 #define EXCP_SVC 2 /* supervisor call (syscall) */ 388 #define EXCP_PGM 3 /* program interruption */ 389 #define EXCP_RESTART 4 /* restart interrupt */ 390 #define EXCP_STOP 5 /* stop interrupt */ 391 #define EXCP_IO 7 /* I/O interrupt */ 392 #define EXCP_MCHK 8 /* machine check */ 393 394 #define INTERRUPT_EXT_CPU_TIMER (1 << 3) 395 #define INTERRUPT_EXT_CLOCK_COMPARATOR (1 << 4) 396 #define INTERRUPT_EXTERNAL_CALL (1 << 5) 397 #define INTERRUPT_EMERGENCY_SIGNAL (1 << 6) 398 #define INTERRUPT_RESTART (1 << 7) 399 #define INTERRUPT_STOP (1 << 8) 400 401 /* Program Status Word. */ 402 #define S390_PSWM_REGNUM 0 403 #define S390_PSWA_REGNUM 1 404 /* General Purpose Registers. */ 405 #define S390_R0_REGNUM 2 406 #define S390_R1_REGNUM 3 407 #define S390_R2_REGNUM 4 408 #define S390_R3_REGNUM 5 409 #define S390_R4_REGNUM 6 410 #define S390_R5_REGNUM 7 411 #define S390_R6_REGNUM 8 412 #define S390_R7_REGNUM 9 413 #define S390_R8_REGNUM 10 414 #define S390_R9_REGNUM 11 415 #define S390_R10_REGNUM 12 416 #define S390_R11_REGNUM 13 417 #define S390_R12_REGNUM 14 418 #define S390_R13_REGNUM 15 419 #define S390_R14_REGNUM 16 420 #define S390_R15_REGNUM 17 421 /* Total Core Registers. */ 422 #define S390_NUM_CORE_REGS 18 423 424 static inline void setcc(S390CPU *cpu, uint64_t cc) 425 { 426 CPUS390XState *env = &cpu->env; 427 428 env->psw.mask &= ~(3ull << 44); 429 env->psw.mask |= (cc & 3) << 44; 430 env->cc_op = cc; 431 } 432 433 /* STSI */ 434 #define STSI_R0_FC_MASK 0x00000000f0000000ULL 435 #define STSI_R0_FC_CURRENT 0x0000000000000000ULL 436 #define STSI_R0_FC_LEVEL_1 0x0000000010000000ULL 437 #define STSI_R0_FC_LEVEL_2 0x0000000020000000ULL 438 #define STSI_R0_FC_LEVEL_3 0x0000000030000000ULL 439 #define STSI_R0_RESERVED_MASK 0x000000000fffff00ULL 440 #define STSI_R0_SEL1_MASK 0x00000000000000ffULL 441 #define STSI_R1_RESERVED_MASK 0x00000000ffff0000ULL 442 #define STSI_R1_SEL2_MASK 0x000000000000ffffULL 443 444 /* Basic Machine Configuration */ 445 typedef struct SysIB_111 { 446 uint8_t res1[32]; 447 uint8_t manuf[16]; 448 uint8_t type[4]; 449 uint8_t res2[12]; 450 uint8_t model[16]; 451 uint8_t sequence[16]; 452 uint8_t plant[4]; 453 uint8_t res3[3996]; 454 } SysIB_111; 455 QEMU_BUILD_BUG_ON(sizeof(SysIB_111) != 4096); 456 457 /* Basic Machine CPU */ 458 typedef struct SysIB_121 { 459 uint8_t res1[80]; 460 uint8_t sequence[16]; 461 uint8_t plant[4]; 462 uint8_t res2[2]; 463 uint16_t cpu_addr; 464 uint8_t res3[3992]; 465 } SysIB_121; 466 QEMU_BUILD_BUG_ON(sizeof(SysIB_121) != 4096); 467 468 /* Basic Machine CPUs */ 469 typedef struct SysIB_122 { 470 uint8_t res1[32]; 471 uint32_t capability; 472 uint16_t total_cpus; 473 uint16_t conf_cpus; 474 uint16_t standby_cpus; 475 uint16_t reserved_cpus; 476 uint16_t adjustments[2026]; 477 } SysIB_122; 478 QEMU_BUILD_BUG_ON(sizeof(SysIB_122) != 4096); 479 480 /* LPAR CPU */ 481 typedef struct SysIB_221 { 482 uint8_t res1[80]; 483 uint8_t sequence[16]; 484 uint8_t plant[4]; 485 uint16_t cpu_id; 486 uint16_t cpu_addr; 487 uint8_t res3[3992]; 488 } SysIB_221; 489 QEMU_BUILD_BUG_ON(sizeof(SysIB_221) != 4096); 490 491 /* LPAR CPUs */ 492 typedef struct SysIB_222 { 493 uint8_t res1[32]; 494 uint16_t lpar_num; 495 uint8_t res2; 496 uint8_t lcpuc; 497 uint16_t total_cpus; 498 uint16_t conf_cpus; 499 uint16_t standby_cpus; 500 uint16_t reserved_cpus; 501 uint8_t name[8]; 502 uint32_t caf; 503 uint8_t res3[16]; 504 uint16_t dedicated_cpus; 505 uint16_t shared_cpus; 506 uint8_t res4[4020]; 507 } SysIB_222; 508 QEMU_BUILD_BUG_ON(sizeof(SysIB_222) != 4096); 509 510 /* VM CPUs */ 511 typedef struct SysIB_322 { 512 uint8_t res1[31]; 513 uint8_t count; 514 struct { 515 uint8_t res2[4]; 516 uint16_t total_cpus; 517 uint16_t conf_cpus; 518 uint16_t standby_cpus; 519 uint16_t reserved_cpus; 520 uint8_t name[8]; 521 uint32_t caf; 522 uint8_t cpi[16]; 523 uint8_t res5[3]; 524 uint8_t ext_name_encoding; 525 uint32_t res3; 526 uint8_t uuid[16]; 527 } vm[8]; 528 uint8_t res4[1504]; 529 uint8_t ext_names[8][256]; 530 } SysIB_322; 531 QEMU_BUILD_BUG_ON(sizeof(SysIB_322) != 4096); 532 533 typedef union SysIB { 534 SysIB_111 sysib_111; 535 SysIB_121 sysib_121; 536 SysIB_122 sysib_122; 537 SysIB_221 sysib_221; 538 SysIB_222 sysib_222; 539 SysIB_322 sysib_322; 540 } SysIB; 541 QEMU_BUILD_BUG_ON(sizeof(SysIB) != 4096); 542 543 /* MMU defines */ 544 #define ASCE_ORIGIN (~0xfffULL) /* segment table origin */ 545 #define ASCE_SUBSPACE 0x200 /* subspace group control */ 546 #define ASCE_PRIVATE_SPACE 0x100 /* private space control */ 547 #define ASCE_ALT_EVENT 0x80 /* storage alteration event control */ 548 #define ASCE_SPACE_SWITCH 0x40 /* space switch event */ 549 #define ASCE_REAL_SPACE 0x20 /* real space control */ 550 #define ASCE_TYPE_MASK 0x0c /* asce table type mask */ 551 #define ASCE_TYPE_REGION1 0x0c /* region first table type */ 552 #define ASCE_TYPE_REGION2 0x08 /* region second table type */ 553 #define ASCE_TYPE_REGION3 0x04 /* region third table type */ 554 #define ASCE_TYPE_SEGMENT 0x00 /* segment table type */ 555 #define ASCE_TABLE_LENGTH 0x03 /* region table length */ 556 557 #define REGION_ENTRY_ORIGIN (~0xfffULL) /* region/segment table origin */ 558 #define REGION_ENTRY_RO 0x200 /* region/segment protection bit */ 559 #define REGION_ENTRY_TF 0xc0 /* region/segment table offset */ 560 #define REGION_ENTRY_INV 0x20 /* invalid region table entry */ 561 #define REGION_ENTRY_TYPE_MASK 0x0c /* region/segment table type mask */ 562 #define REGION_ENTRY_TYPE_R1 0x0c /* region first table type */ 563 #define REGION_ENTRY_TYPE_R2 0x08 /* region second table type */ 564 #define REGION_ENTRY_TYPE_R3 0x04 /* region third table type */ 565 #define REGION_ENTRY_LENGTH 0x03 /* region third length */ 566 567 #define SEGMENT_ENTRY_ORIGIN (~0x7ffULL) /* segment table origin */ 568 #define SEGMENT_ENTRY_FC 0x400 /* format control */ 569 #define SEGMENT_ENTRY_RO 0x200 /* page protection bit */ 570 #define SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ 571 572 #define VADDR_PX 0xff000 /* page index bits */ 573 574 #define PAGE_RO 0x200 /* HW read-only bit */ 575 #define PAGE_INVALID 0x400 /* HW invalid bit */ 576 #define PAGE_RES0 0x800 /* bit must be zero */ 577 578 #define SK_C (0x1 << 1) 579 #define SK_R (0x1 << 2) 580 #define SK_F (0x1 << 3) 581 #define SK_ACC_MASK (0xf << 4) 582 583 /* SIGP order codes */ 584 #define SIGP_SENSE 0x01 585 #define SIGP_EXTERNAL_CALL 0x02 586 #define SIGP_EMERGENCY 0x03 587 #define SIGP_START 0x04 588 #define SIGP_STOP 0x05 589 #define SIGP_RESTART 0x06 590 #define SIGP_STOP_STORE_STATUS 0x09 591 #define SIGP_INITIAL_CPU_RESET 0x0b 592 #define SIGP_CPU_RESET 0x0c 593 #define SIGP_SET_PREFIX 0x0d 594 #define SIGP_STORE_STATUS_ADDR 0x0e 595 #define SIGP_SET_ARCH 0x12 596 #define SIGP_COND_EMERGENCY 0x13 597 #define SIGP_SENSE_RUNNING 0x15 598 #define SIGP_STORE_ADTL_STATUS 0x17 599 600 /* SIGP condition codes */ 601 #define SIGP_CC_ORDER_CODE_ACCEPTED 0 602 #define SIGP_CC_STATUS_STORED 1 603 #define SIGP_CC_BUSY 2 604 #define SIGP_CC_NOT_OPERATIONAL 3 605 606 /* SIGP status bits */ 607 #define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL 608 #define SIGP_STAT_NOT_RUNNING 0x00000400UL 609 #define SIGP_STAT_INCORRECT_STATE 0x00000200UL 610 #define SIGP_STAT_INVALID_PARAMETER 0x00000100UL 611 #define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL 612 #define SIGP_STAT_STOPPED 0x00000040UL 613 #define SIGP_STAT_OPERATOR_INTERV 0x00000020UL 614 #define SIGP_STAT_CHECK_STOP 0x00000010UL 615 #define SIGP_STAT_INOPERATIVE 0x00000004UL 616 #define SIGP_STAT_INVALID_ORDER 0x00000002UL 617 #define SIGP_STAT_RECEIVER_CHECK 0x00000001UL 618 619 /* SIGP SET ARCHITECTURE modes */ 620 #define SIGP_MODE_ESA_S390 0 621 #define SIGP_MODE_Z_ARCH_TRANS_ALL_PSW 1 622 #define SIGP_MODE_Z_ARCH_TRANS_CUR_PSW 2 623 624 /* SIGP order code mask corresponding to bit positions 56-63 */ 625 #define SIGP_ORDER_MASK 0x000000ff 626 627 /* machine check interruption code */ 628 629 /* subclasses */ 630 #define MCIC_SC_SD 0x8000000000000000ULL 631 #define MCIC_SC_PD 0x4000000000000000ULL 632 #define MCIC_SC_SR 0x2000000000000000ULL 633 #define MCIC_SC_CD 0x0800000000000000ULL 634 #define MCIC_SC_ED 0x0400000000000000ULL 635 #define MCIC_SC_DG 0x0100000000000000ULL 636 #define MCIC_SC_W 0x0080000000000000ULL 637 #define MCIC_SC_CP 0x0040000000000000ULL 638 #define MCIC_SC_SP 0x0020000000000000ULL 639 #define MCIC_SC_CK 0x0010000000000000ULL 640 641 /* subclass modifiers */ 642 #define MCIC_SCM_B 0x0002000000000000ULL 643 #define MCIC_SCM_DA 0x0000000020000000ULL 644 #define MCIC_SCM_AP 0x0000000000080000ULL 645 646 /* storage errors */ 647 #define MCIC_SE_SE 0x0000800000000000ULL 648 #define MCIC_SE_SC 0x0000400000000000ULL 649 #define MCIC_SE_KE 0x0000200000000000ULL 650 #define MCIC_SE_DS 0x0000100000000000ULL 651 #define MCIC_SE_IE 0x0000000080000000ULL 652 653 /* validity bits */ 654 #define MCIC_VB_WP 0x0000080000000000ULL 655 #define MCIC_VB_MS 0x0000040000000000ULL 656 #define MCIC_VB_PM 0x0000020000000000ULL 657 #define MCIC_VB_IA 0x0000010000000000ULL 658 #define MCIC_VB_FA 0x0000008000000000ULL 659 #define MCIC_VB_VR 0x0000004000000000ULL 660 #define MCIC_VB_EC 0x0000002000000000ULL 661 #define MCIC_VB_FP 0x0000001000000000ULL 662 #define MCIC_VB_GR 0x0000000800000000ULL 663 #define MCIC_VB_CR 0x0000000400000000ULL 664 #define MCIC_VB_ST 0x0000000100000000ULL 665 #define MCIC_VB_AR 0x0000000040000000ULL 666 #define MCIC_VB_GS 0x0000000008000000ULL 667 #define MCIC_VB_PR 0x0000000000200000ULL 668 #define MCIC_VB_FC 0x0000000000100000ULL 669 #define MCIC_VB_CT 0x0000000000020000ULL 670 #define MCIC_VB_CC 0x0000000000010000ULL 671 672 static inline uint64_t s390_build_validity_mcic(void) 673 { 674 uint64_t mcic; 675 676 /* 677 * Indicate all validity bits (no damage) only. Other bits have to be 678 * added by the caller. (storage errors, subclasses and subclass modifiers) 679 */ 680 mcic = MCIC_VB_WP | MCIC_VB_MS | MCIC_VB_PM | MCIC_VB_IA | MCIC_VB_FP | 681 MCIC_VB_GR | MCIC_VB_CR | MCIC_VB_ST | MCIC_VB_AR | MCIC_VB_PR | 682 MCIC_VB_FC | MCIC_VB_CT | MCIC_VB_CC; 683 if (s390_has_feat(S390_FEAT_VECTOR)) { 684 mcic |= MCIC_VB_VR; 685 } 686 if (s390_has_feat(S390_FEAT_GUARDED_STORAGE)) { 687 mcic |= MCIC_VB_GS; 688 } 689 return mcic; 690 } 691 692 static inline void s390_do_cpu_full_reset(CPUState *cs, run_on_cpu_data arg) 693 { 694 cpu_reset(cs); 695 } 696 697 static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg) 698 { 699 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 700 701 scc->cpu_reset(cs); 702 } 703 704 static inline void s390_do_cpu_initial_reset(CPUState *cs, run_on_cpu_data arg) 705 { 706 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 707 708 scc->initial_cpu_reset(cs); 709 } 710 711 static inline void s390_do_cpu_load_normal(CPUState *cs, run_on_cpu_data arg) 712 { 713 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 714 715 scc->load_normal(cs); 716 } 717 718 719 /* cpu.c */ 720 void s390_crypto_reset(void); 721 int s390_set_memory_limit(uint64_t new_limit, uint64_t *hw_limit); 722 void s390_set_max_pagesize(uint64_t pagesize, Error **errp); 723 void s390_cmma_reset(void); 724 void s390_enable_css_support(S390CPU *cpu); 725 int s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch_id, 726 int vq, bool assign); 727 #ifndef CONFIG_USER_ONLY 728 unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu); 729 #else 730 static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) 731 { 732 return 0; 733 } 734 #endif /* CONFIG_USER_ONLY */ 735 static inline uint8_t s390_cpu_get_state(S390CPU *cpu) 736 { 737 return cpu->env.cpu_state; 738 } 739 740 741 /* cpu_models.c */ 742 void s390_cpu_list(void); 743 #define cpu_list s390_cpu_list 744 void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga, 745 const S390FeatInit feat_init); 746 747 748 /* helper.c */ 749 #define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU 750 #define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX) 751 #define CPU_RESOLVING_TYPE TYPE_S390_CPU 752 753 /* you can call this signal handler from your SIGBUS and SIGSEGV 754 signal handlers to inform the virtual CPU of exceptions. non zero 755 is returned if the signal was handled by the virtual CPU. */ 756 int cpu_s390x_signal_handler(int host_signum, void *pinfo, void *puc); 757 #define cpu_signal_handler cpu_s390x_signal_handler 758 759 760 /* interrupt.c */ 761 void s390_crw_mchk(void); 762 void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr, 763 uint32_t io_int_parm, uint32_t io_int_word); 764 /* automatically detect the instruction length */ 765 #define ILEN_AUTO 0xff 766 #define RA_IGNORED 0 767 void s390_program_interrupt(CPUS390XState *env, uint32_t code, int ilen, 768 uintptr_t ra); 769 /* service interrupts are floating therefore we must not pass an cpustate */ 770 void s390_sclp_extint(uint32_t parm); 771 772 /* mmu_helper.c */ 773 int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf, 774 int len, bool is_write); 775 #define s390_cpu_virt_mem_read(cpu, laddr, ar, dest, len) \ 776 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, false) 777 #define s390_cpu_virt_mem_write(cpu, laddr, ar, dest, len) \ 778 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, true) 779 #define s390_cpu_virt_mem_check_read(cpu, laddr, ar, len) \ 780 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, false) 781 #define s390_cpu_virt_mem_check_write(cpu, laddr, ar, len) \ 782 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, true) 783 void s390_cpu_virt_mem_handle_exc(S390CPU *cpu, uintptr_t ra); 784 785 786 /* sigp.c */ 787 int s390_cpu_restart(S390CPU *cpu); 788 void s390_init_sigp(void); 789 790 791 /* outside of target/s390x/ */ 792 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr); 793 794 typedef CPUS390XState CPUArchState; 795 typedef S390CPU ArchCPU; 796 797 #include "exec/cpu-all.h" 798 799 #endif 800