1 /* 2 * S/390 virtual CPU header 3 * 4 * For details on the s390x architecture and used definitions (e.g., 5 * PSW, PER and DAT (Dynamic Address Translation)), please refer to 6 * the "z/Architecture Principles of Operations" - a.k.a. PoP. 7 * 8 * Copyright (c) 2009 Ulrich Hecht 9 * Copyright IBM Corp. 2012, 2018 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, see <http://www.gnu.org/licenses/>. 23 */ 24 25 #ifndef S390X_CPU_H 26 #define S390X_CPU_H 27 28 #include "cpu-qom.h" 29 #include "cpu_models.h" 30 #include "exec/cpu-common.h" 31 #include "exec/cpu-defs.h" 32 #include "exec/cpu-interrupt.h" 33 #include "qemu/cpu-float.h" 34 #include "qapi/qapi-types-machine-common.h" 35 36 #define ELF_MACHINE_UNAME "S390X" 37 38 #define MMU_USER_IDX 0 39 40 #define S390_MAX_CPUS 248 41 42 #ifndef CONFIG_KVM 43 #define S390_ADAPTER_SUPPRESSIBLE 0x01 44 #else 45 #define S390_ADAPTER_SUPPRESSIBLE KVM_S390_ADAPTER_SUPPRESSIBLE 46 #endif 47 48 typedef struct PSW { 49 uint64_t mask; 50 uint64_t addr; 51 } PSW; 52 53 typedef struct CPUArchState { 54 uint64_t regs[16]; /* GP registers */ 55 /* 56 * The floating point registers are part of the vector registers. 57 * vregs[0][0] -> vregs[15][0] are 16 floating point registers 58 */ 59 uint64_t vregs[32][2] QEMU_ALIGNED(16); /* vector registers */ 60 uint32_t aregs[16]; /* access registers */ 61 uint64_t gscb[4]; /* guarded storage control */ 62 uint64_t etoken; /* etoken */ 63 uint64_t etoken_extension; /* etoken extension */ 64 65 uint64_t diag318_info; 66 67 /* Fields up to this point are not cleared by initial CPU reset */ 68 struct {} start_initial_reset_fields; 69 70 uint32_t fpc; /* floating-point control register */ 71 uint32_t cc_op; 72 bool bpbc; /* branch prediction blocking */ 73 74 float_status fpu_status; /* passed to softfloat lib */ 75 76 PSW psw; 77 78 S390CrashReason crash_reason; 79 80 uint64_t cc_src; 81 uint64_t cc_dst; 82 uint64_t cc_vr; 83 84 uint64_t ex_value; 85 uint64_t ex_target; 86 87 uint64_t __excp_addr; 88 uint64_t psa; 89 90 uint32_t int_pgm_code; 91 uint32_t int_pgm_ilen; 92 93 uint32_t int_svc_code; 94 uint32_t int_svc_ilen; 95 96 uint64_t per_address; 97 uint16_t per_perc_atmid; 98 99 uint64_t cregs[16]; /* control registers */ 100 101 uint64_t ckc; 102 uint64_t cputm; 103 uint32_t todpr; 104 105 uint64_t pfault_token; 106 uint64_t pfault_compare; 107 uint64_t pfault_select; 108 109 uint64_t gbea; 110 uint64_t pp; 111 112 /* Fields up to this point are not cleared by normal CPU reset */ 113 struct {} start_normal_reset_fields; 114 uint8_t riccb[64]; /* runtime instrumentation control */ 115 116 int pending_int; 117 uint16_t external_call_addr; 118 DECLARE_BITMAP(emergency_signals, S390_MAX_CPUS); 119 120 #if !defined(CONFIG_USER_ONLY) 121 uint64_t tlb_fill_tec; /* translation exception code during tlb_fill */ 122 int tlb_fill_exc; /* exception number seen during tlb_fill */ 123 #endif 124 125 /* Fields up to this point are cleared by a CPU reset */ 126 struct {} end_reset_fields; 127 128 #if !defined(CONFIG_USER_ONLY) 129 uint32_t core_id; /* PoP "CPU address", same as cpu_index */ 130 int32_t socket_id; 131 int32_t book_id; 132 int32_t drawer_id; 133 bool dedicated; 134 S390CpuEntitlement entitlement; /* Used only for vertical polarization */ 135 uint64_t cpuid; 136 #endif 137 138 QEMUTimer *tod_timer; 139 140 QEMUTimer *cpu_timer; 141 142 /* 143 * The cpu state represents the logical state of a cpu. In contrast to other 144 * architectures, there is a difference between a halt and a stop on s390. 145 * If all cpus are either stopped (including check stop) or in the disabled 146 * wait state, the vm can be shut down. 147 * The acceptable cpu_state values are defined in the CpuInfoS390State 148 * enum. 149 */ 150 uint8_t cpu_state; 151 152 /* currently processed sigp order */ 153 uint8_t sigp_order; 154 155 } CPUS390XState; 156 157 static inline uint64_t *get_freg(CPUS390XState *cs, int nr) 158 { 159 return &cs->vregs[nr][0]; 160 } 161 162 /** 163 * S390CPU: 164 * @env: #CPUS390XState. 165 * 166 * An S/390 CPU. 167 */ 168 struct ArchCPU { 169 CPUState parent_obj; 170 171 CPUS390XState env; 172 S390CPUModel *model; 173 /* needed for live migration */ 174 void *irqstate; 175 uint32_t irqstate_saved_size; 176 }; 177 178 /** 179 * S390CPUClass: 180 * @parent_realize: The parent class' realize handler. 181 * @parent_phases: The parent class' reset phase handlers. 182 * @load_normal: Performs a load normal. 183 * 184 * An S/390 CPU model. 185 */ 186 struct S390CPUClass { 187 CPUClass parent_class; 188 189 const S390CPUDef *cpu_def; 190 bool kvm_required; 191 bool is_static; 192 bool is_migration_safe; 193 const char *desc; 194 195 DeviceRealize parent_realize; 196 ResettablePhases parent_phases; 197 void (*load_normal)(CPUState *cpu); 198 }; 199 200 #ifndef CONFIG_USER_ONLY 201 extern const VMStateDescription vmstate_s390_cpu; 202 #endif 203 204 /* distinguish between 24 bit and 31 bit addressing */ 205 #define HIGH_ORDER_BIT 0x80000000 206 207 /* Interrupt Codes */ 208 /* Program Interrupts */ 209 #define PGM_OPERATION 0x0001 210 #define PGM_PRIVILEGED 0x0002 211 #define PGM_EXECUTE 0x0003 212 #define PGM_PROTECTION 0x0004 213 #define PGM_ADDRESSING 0x0005 214 #define PGM_SPECIFICATION 0x0006 215 #define PGM_DATA 0x0007 216 #define PGM_FIXPT_OVERFLOW 0x0008 217 #define PGM_FIXPT_DIVIDE 0x0009 218 #define PGM_DEC_OVERFLOW 0x000a 219 #define PGM_DEC_DIVIDE 0x000b 220 #define PGM_HFP_EXP_OVERFLOW 0x000c 221 #define PGM_HFP_EXP_UNDERFLOW 0x000d 222 #define PGM_HFP_SIGNIFICANCE 0x000e 223 #define PGM_HFP_DIVIDE 0x000f 224 #define PGM_SEGMENT_TRANS 0x0010 225 #define PGM_PAGE_TRANS 0x0011 226 #define PGM_TRANS_SPEC 0x0012 227 #define PGM_SPECIAL_OP 0x0013 228 #define PGM_OPERAND 0x0015 229 #define PGM_TRACE_TABLE 0x0016 230 #define PGM_VECTOR_PROCESSING 0x001b 231 #define PGM_SPACE_SWITCH 0x001c 232 #define PGM_HFP_SQRT 0x001d 233 #define PGM_PC_TRANS_SPEC 0x001f 234 #define PGM_AFX_TRANS 0x0020 235 #define PGM_ASX_TRANS 0x0021 236 #define PGM_LX_TRANS 0x0022 237 #define PGM_EX_TRANS 0x0023 238 #define PGM_PRIM_AUTH 0x0024 239 #define PGM_SEC_AUTH 0x0025 240 #define PGM_ALET_SPEC 0x0028 241 #define PGM_ALEN_SPEC 0x0029 242 #define PGM_ALE_SEQ 0x002a 243 #define PGM_ASTE_VALID 0x002b 244 #define PGM_ASTE_SEQ 0x002c 245 #define PGM_EXT_AUTH 0x002d 246 #define PGM_STACK_FULL 0x0030 247 #define PGM_STACK_EMPTY 0x0031 248 #define PGM_STACK_SPEC 0x0032 249 #define PGM_STACK_TYPE 0x0033 250 #define PGM_STACK_OP 0x0034 251 #define PGM_ASCE_TYPE 0x0038 252 #define PGM_REG_FIRST_TRANS 0x0039 253 #define PGM_REG_SEC_TRANS 0x003a 254 #define PGM_REG_THIRD_TRANS 0x003b 255 #define PGM_MONITOR 0x0040 256 #define PGM_PER 0x0080 257 #define PGM_CRYPTO 0x0119 258 259 /* External Interrupts */ 260 #define EXT_INTERRUPT_KEY 0x0040 261 #define EXT_CLOCK_COMP 0x1004 262 #define EXT_CPU_TIMER 0x1005 263 #define EXT_MALFUNCTION 0x1200 264 #define EXT_EMERGENCY 0x1201 265 #define EXT_EXTERNAL_CALL 0x1202 266 #define EXT_ETR 0x1406 267 #define EXT_SERVICE 0x2401 268 #define EXT_VIRTIO 0x2603 269 270 /* PSW defines */ 271 #undef PSW_MASK_PER 272 #undef PSW_MASK_UNUSED_2 273 #undef PSW_MASK_UNUSED_3 274 #undef PSW_MASK_DAT 275 #undef PSW_MASK_IO 276 #undef PSW_MASK_EXT 277 #undef PSW_MASK_KEY 278 #undef PSW_SHIFT_KEY 279 #undef PSW_MASK_MCHECK 280 #undef PSW_MASK_WAIT 281 #undef PSW_MASK_PSTATE 282 #undef PSW_MASK_ASC 283 #undef PSW_SHIFT_ASC 284 #undef PSW_MASK_CC 285 #undef PSW_MASK_PM 286 #undef PSW_MASK_RI 287 #undef PSW_SHIFT_MASK_PM 288 #undef PSW_MASK_64 289 #undef PSW_MASK_32 290 #undef PSW_MASK_ESA_ADDR 291 292 #define PSW_MASK_PER 0x4000000000000000ULL 293 #define PSW_MASK_UNUSED_2 0x2000000000000000ULL 294 #define PSW_MASK_UNUSED_3 0x1000000000000000ULL 295 #define PSW_MASK_DAT 0x0400000000000000ULL 296 #define PSW_MASK_IO 0x0200000000000000ULL 297 #define PSW_MASK_EXT 0x0100000000000000ULL 298 #define PSW_MASK_KEY 0x00F0000000000000ULL 299 #define PSW_SHIFT_KEY 52 300 #define PSW_MASK_SHORTPSW 0x0008000000000000ULL 301 #define PSW_MASK_MCHECK 0x0004000000000000ULL 302 #define PSW_MASK_WAIT 0x0002000000000000ULL 303 #define PSW_MASK_PSTATE 0x0001000000000000ULL 304 #define PSW_MASK_ASC 0x0000C00000000000ULL 305 #define PSW_SHIFT_ASC 46 306 #define PSW_MASK_CC 0x0000300000000000ULL 307 #define PSW_MASK_PM 0x00000F0000000000ULL 308 #define PSW_SHIFT_MASK_PM 40 309 #define PSW_MASK_RI 0x0000008000000000ULL 310 #define PSW_MASK_64 0x0000000100000000ULL 311 #define PSW_MASK_32 0x0000000080000000ULL 312 #define PSW_MASK_SHORT_ADDR 0x000000007fffffffULL 313 #define PSW_MASK_SHORT_CTRL 0xffffffff80000000ULL 314 #define PSW_MASK_RESERVED 0xb80800fe7fffffffULL 315 316 #undef PSW_ASC_PRIMARY 317 #undef PSW_ASC_ACCREG 318 #undef PSW_ASC_SECONDARY 319 #undef PSW_ASC_HOME 320 321 #define PSW_ASC_PRIMARY 0x0000000000000000ULL 322 #define PSW_ASC_ACCREG 0x0000400000000000ULL 323 #define PSW_ASC_SECONDARY 0x0000800000000000ULL 324 #define PSW_ASC_HOME 0x0000C00000000000ULL 325 326 /* the address space values shifted */ 327 #define AS_PRIMARY 0 328 #define AS_ACCREG 1 329 #define AS_SECONDARY 2 330 #define AS_HOME 3 331 332 /* tb flags */ 333 334 #define FLAG_MASK_PSW_SHIFT 31 335 #define FLAG_MASK_32 0x00000001u 336 #define FLAG_MASK_64 0x00000002u 337 #define FLAG_MASK_AFP 0x00000004u 338 #define FLAG_MASK_VECTOR 0x00000008u 339 #define FLAG_MASK_ASC 0x00018000u 340 #define FLAG_MASK_PSTATE 0x00020000u 341 #define FLAG_MASK_PER_IFETCH_NULLIFY 0x01000000u 342 #define FLAG_MASK_DAT 0x08000000u 343 #define FLAG_MASK_PER_STORE_REAL 0x20000000u 344 #define FLAG_MASK_PER_IFETCH 0x40000000u 345 #define FLAG_MASK_PER_BRANCH 0x80000000u 346 347 QEMU_BUILD_BUG_ON(FLAG_MASK_32 != PSW_MASK_32 >> FLAG_MASK_PSW_SHIFT); 348 QEMU_BUILD_BUG_ON(FLAG_MASK_64 != PSW_MASK_64 >> FLAG_MASK_PSW_SHIFT); 349 QEMU_BUILD_BUG_ON(FLAG_MASK_ASC != PSW_MASK_ASC >> FLAG_MASK_PSW_SHIFT); 350 QEMU_BUILD_BUG_ON(FLAG_MASK_PSTATE != PSW_MASK_PSTATE >> FLAG_MASK_PSW_SHIFT); 351 QEMU_BUILD_BUG_ON(FLAG_MASK_DAT != PSW_MASK_DAT >> FLAG_MASK_PSW_SHIFT); 352 353 #define FLAG_MASK_PSW (FLAG_MASK_DAT | FLAG_MASK_PSTATE | \ 354 FLAG_MASK_ASC | FLAG_MASK_64 | FLAG_MASK_32) 355 #define FLAG_MASK_CR9 (FLAG_MASK_PER_BRANCH | FLAG_MASK_PER_IFETCH) 356 #define FLAG_MASK_PER (FLAG_MASK_PER_BRANCH | \ 357 FLAG_MASK_PER_IFETCH | \ 358 FLAG_MASK_PER_IFETCH_NULLIFY | \ 359 FLAG_MASK_PER_STORE_REAL) 360 361 /* Control register 0 bits */ 362 #define CR0_LOWPROT 0x0000000010000000ULL 363 #define CR0_SECONDARY 0x0000000004000000ULL 364 #define CR0_EDAT 0x0000000000800000ULL 365 #define CR0_AFP 0x0000000000040000ULL 366 #define CR0_VECTOR 0x0000000000020000ULL 367 #define CR0_IEP 0x0000000000100000ULL 368 #define CR0_EMERGENCY_SIGNAL_SC 0x0000000000004000ULL 369 #define CR0_EXTERNAL_CALL_SC 0x0000000000002000ULL 370 #define CR0_CKC_SC 0x0000000000000800ULL 371 #define CR0_CPU_TIMER_SC 0x0000000000000400ULL 372 #define CR0_SERVICE_SC 0x0000000000000200ULL 373 374 /* Control register 14 bits */ 375 #define CR14_CHANNEL_REPORT_SC 0x0000000010000000ULL 376 377 /* MMU */ 378 #define MMU_PRIMARY_IDX 0 379 #define MMU_SECONDARY_IDX 1 380 #define MMU_HOME_IDX 2 381 #define MMU_REAL_IDX 3 382 383 static inline int s390x_env_mmu_index(CPUS390XState *env, bool ifetch) 384 { 385 #ifdef CONFIG_USER_ONLY 386 return MMU_USER_IDX; 387 #else 388 if (!(env->psw.mask & PSW_MASK_DAT)) { 389 return MMU_REAL_IDX; 390 } 391 392 if (ifetch) { 393 if ((env->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME) { 394 return MMU_HOME_IDX; 395 } 396 return MMU_PRIMARY_IDX; 397 } 398 399 switch (env->psw.mask & PSW_MASK_ASC) { 400 case PSW_ASC_PRIMARY: 401 return MMU_PRIMARY_IDX; 402 case PSW_ASC_SECONDARY: 403 return MMU_SECONDARY_IDX; 404 case PSW_ASC_HOME: 405 return MMU_HOME_IDX; 406 case PSW_ASC_ACCREG: 407 /* Fallthrough: access register mode is not yet supported */ 408 default: 409 abort(); 410 } 411 #endif 412 } 413 414 #ifdef CONFIG_TCG 415 416 #include "tcg/tcg_s390x.h" 417 418 void cpu_get_tb_cpu_state(CPUS390XState *env, vaddr *pc, 419 uint64_t *cs_base, uint32_t *flags); 420 421 #endif /* CONFIG_TCG */ 422 423 /* PER bits from control register 9 */ 424 #define PER_CR9_EVENT_BRANCH 0x80000000 425 #define PER_CR9_EVENT_IFETCH 0x40000000 426 #define PER_CR9_EVENT_STORE 0x20000000 427 #define PER_CR9_EVENT_STORAGE_KEY_ALTERATION 0x10000000 428 #define PER_CR9_EVENT_STORE_REAL 0x08000000 429 #define PER_CR9_EVENT_ZERO_ADDRESS_DETECTION 0x04000000 430 #define PER_CR9_EVENT_TRANSACTION_END 0x02000000 431 #define PER_CR9_EVENT_IFETCH_NULLIFICATION 0x01000000 432 #define PER_CR9_CONTROL_BRANCH_ADDRESS 0x00800000 433 #define PER_CR9_CONTROL_TRANSACTION_SUPRESS 0x00400000 434 #define PER_CR9_CONTROL_STORAGE_ALTERATION 0x00200000 435 436 QEMU_BUILD_BUG_ON(FLAG_MASK_PER_BRANCH != PER_CR9_EVENT_BRANCH); 437 QEMU_BUILD_BUG_ON(FLAG_MASK_PER_IFETCH != PER_CR9_EVENT_IFETCH); 438 QEMU_BUILD_BUG_ON(FLAG_MASK_PER_IFETCH_NULLIFY != 439 PER_CR9_EVENT_IFETCH_NULLIFICATION); 440 441 /* PER bits from the PER CODE/ATMID/AI in lowcore */ 442 #define PER_CODE_EVENT_BRANCH 0x8000 443 #define PER_CODE_EVENT_IFETCH 0x4000 444 #define PER_CODE_EVENT_STORE 0x2000 445 #define PER_CODE_EVENT_STORE_REAL 0x0800 446 #define PER_CODE_EVENT_NULLIFICATION 0x0100 447 448 #define EXCP_EXT 1 /* external interrupt */ 449 #define EXCP_SVC 2 /* supervisor call (syscall) */ 450 #define EXCP_PGM 3 /* program interruption */ 451 #define EXCP_RESTART 4 /* restart interrupt */ 452 #define EXCP_STOP 5 /* stop interrupt */ 453 #define EXCP_IO 7 /* I/O interrupt */ 454 #define EXCP_MCHK 8 /* machine check */ 455 456 #define INTERRUPT_EXT_CPU_TIMER (1 << 3) 457 #define INTERRUPT_EXT_CLOCK_COMPARATOR (1 << 4) 458 #define INTERRUPT_EXTERNAL_CALL (1 << 5) 459 #define INTERRUPT_EMERGENCY_SIGNAL (1 << 6) 460 #define INTERRUPT_RESTART (1 << 7) 461 #define INTERRUPT_STOP (1 << 8) 462 463 /* Program Status Word. */ 464 #define S390_PSWM_REGNUM 0 465 #define S390_PSWA_REGNUM 1 466 /* General Purpose Registers. */ 467 #define S390_R0_REGNUM 2 468 #define S390_R1_REGNUM 3 469 #define S390_R2_REGNUM 4 470 #define S390_R3_REGNUM 5 471 #define S390_R4_REGNUM 6 472 #define S390_R5_REGNUM 7 473 #define S390_R6_REGNUM 8 474 #define S390_R7_REGNUM 9 475 #define S390_R8_REGNUM 10 476 #define S390_R9_REGNUM 11 477 #define S390_R10_REGNUM 12 478 #define S390_R11_REGNUM 13 479 #define S390_R12_REGNUM 14 480 #define S390_R13_REGNUM 15 481 #define S390_R14_REGNUM 16 482 #define S390_R15_REGNUM 17 483 484 static inline void setcc(S390CPU *cpu, uint64_t cc) 485 { 486 CPUS390XState *env = &cpu->env; 487 488 env->psw.mask &= ~(3ull << 44); 489 env->psw.mask |= (cc & 3) << 44; 490 env->cc_op = cc; 491 } 492 493 /* STSI */ 494 #define STSI_R0_FC_MASK 0x00000000f0000000ULL 495 #define STSI_R0_FC_CURRENT 0x0000000000000000ULL 496 #define STSI_R0_FC_LEVEL_1 0x0000000010000000ULL 497 #define STSI_R0_FC_LEVEL_2 0x0000000020000000ULL 498 #define STSI_R0_FC_LEVEL_3 0x0000000030000000ULL 499 #define STSI_R0_RESERVED_MASK 0x000000000fffff00ULL 500 #define STSI_R0_SEL1_MASK 0x00000000000000ffULL 501 #define STSI_R1_RESERVED_MASK 0x00000000ffff0000ULL 502 #define STSI_R1_SEL2_MASK 0x000000000000ffffULL 503 504 /* Basic Machine Configuration */ 505 typedef struct SysIB_111 { 506 uint8_t res1[32]; 507 uint8_t manuf[16]; 508 uint8_t type[4]; 509 uint8_t res2[12]; 510 uint8_t model[16]; 511 uint8_t sequence[16]; 512 uint8_t plant[4]; 513 uint8_t res3[3996]; 514 } SysIB_111; 515 QEMU_BUILD_BUG_ON(sizeof(SysIB_111) != 4096); 516 517 /* Basic Machine CPU */ 518 typedef struct SysIB_121 { 519 uint8_t res1[80]; 520 uint8_t sequence[16]; 521 uint8_t plant[4]; 522 uint8_t res2[2]; 523 uint16_t cpu_addr; 524 uint8_t res3[3992]; 525 } SysIB_121; 526 QEMU_BUILD_BUG_ON(sizeof(SysIB_121) != 4096); 527 528 /* Basic Machine CPUs */ 529 typedef struct SysIB_122 { 530 uint8_t res1[32]; 531 uint32_t capability; 532 uint16_t total_cpus; 533 uint16_t conf_cpus; 534 uint16_t standby_cpus; 535 uint16_t reserved_cpus; 536 uint16_t adjustments[2026]; 537 } SysIB_122; 538 QEMU_BUILD_BUG_ON(sizeof(SysIB_122) != 4096); 539 540 /* LPAR CPU */ 541 typedef struct SysIB_221 { 542 uint8_t res1[80]; 543 uint8_t sequence[16]; 544 uint8_t plant[4]; 545 uint16_t cpu_id; 546 uint16_t cpu_addr; 547 uint8_t res3[3992]; 548 } SysIB_221; 549 QEMU_BUILD_BUG_ON(sizeof(SysIB_221) != 4096); 550 551 /* LPAR CPUs */ 552 typedef struct SysIB_222 { 553 uint8_t res1[32]; 554 uint16_t lpar_num; 555 uint8_t res2; 556 uint8_t lcpuc; 557 uint16_t total_cpus; 558 uint16_t conf_cpus; 559 uint16_t standby_cpus; 560 uint16_t reserved_cpus; 561 uint8_t name[8]; 562 uint32_t caf; 563 uint8_t res3[16]; 564 uint16_t dedicated_cpus; 565 uint16_t shared_cpus; 566 uint8_t res4[4020]; 567 } SysIB_222; 568 QEMU_BUILD_BUG_ON(sizeof(SysIB_222) != 4096); 569 570 /* VM CPUs */ 571 typedef struct SysIB_322 { 572 uint8_t res1[31]; 573 uint8_t count; 574 struct { 575 uint8_t res2[4]; 576 uint16_t total_cpus; 577 uint16_t conf_cpus; 578 uint16_t standby_cpus; 579 uint16_t reserved_cpus; 580 uint8_t name[8]; 581 uint32_t caf; 582 uint8_t cpi[16]; 583 uint8_t res5[3]; 584 uint8_t ext_name_encoding; 585 uint32_t res3; 586 uint8_t uuid[16]; 587 } vm[8]; 588 uint8_t res4[1504]; 589 uint8_t ext_names[8][256]; 590 } SysIB_322; 591 QEMU_BUILD_BUG_ON(sizeof(SysIB_322) != 4096); 592 593 /* 594 * Topology Magnitude fields (MAG) indicates the maximum number of 595 * topology list entries (TLE) at the corresponding nesting level. 596 */ 597 #define S390_TOPOLOGY_MAG 6 598 #define S390_TOPOLOGY_MAG6 0 599 #define S390_TOPOLOGY_MAG5 1 600 #define S390_TOPOLOGY_MAG4 2 601 #define S390_TOPOLOGY_MAG3 3 602 #define S390_TOPOLOGY_MAG2 4 603 #define S390_TOPOLOGY_MAG1 5 604 /* Configuration topology */ 605 typedef struct SysIB_151x { 606 uint8_t reserved0[2]; 607 uint16_t length; 608 uint8_t mag[S390_TOPOLOGY_MAG]; 609 uint8_t reserved1; 610 uint8_t mnest; 611 uint32_t reserved2; 612 char tle[]; 613 } SysIB_151x; 614 QEMU_BUILD_BUG_ON(sizeof(SysIB_151x) != 16); 615 616 typedef union SysIB { 617 SysIB_111 sysib_111; 618 SysIB_121 sysib_121; 619 SysIB_122 sysib_122; 620 SysIB_221 sysib_221; 621 SysIB_222 sysib_222; 622 SysIB_322 sysib_322; 623 SysIB_151x sysib_151x; 624 } SysIB; 625 QEMU_BUILD_BUG_ON(sizeof(SysIB) != 4096); 626 627 /* 628 * CPU Topology List provided by STSI with fc=15 provides a list 629 * of two different Topology List Entries (TLE) types to specify 630 * the topology hierarchy. 631 * 632 * - Container Topology List Entry 633 * Defines a container to contain other Topology List Entries 634 * of any type, nested containers or CPU. 635 * - CPU Topology List Entry 636 * Specifies the CPUs position, type, entitlement and polarization 637 * of the CPUs contained in the last container TLE. 638 * 639 * There can be theoretically up to five levels of containers, QEMU 640 * uses only three levels, the drawer's, book's and socket's level. 641 * 642 * A container with a nesting level (NL) greater than 1 can only 643 * contain another container of nesting level NL-1. 644 * 645 * A container of nesting level 1 (socket), contains as many CPU TLE 646 * as needed to describe the position and qualities of all CPUs inside 647 * the container. 648 * The qualities of a CPU are polarization, entitlement and type. 649 * 650 * The CPU TLE defines the position of the CPUs of identical qualities 651 * using a 64bits mask which first bit has its offset defined by 652 * the CPU address origin field of the CPU TLE like in: 653 * CPU address = origin * 64 + bit position within the mask 654 */ 655 /* Container type Topology List Entry */ 656 typedef struct SYSIBContainerListEntry { 657 uint8_t nl; 658 uint8_t reserved[6]; 659 uint8_t id; 660 } SYSIBContainerListEntry; 661 QEMU_BUILD_BUG_ON(sizeof(SYSIBContainerListEntry) != 8); 662 663 /* CPU type Topology List Entry */ 664 typedef struct SysIBCPUListEntry { 665 uint8_t nl; 666 uint8_t reserved0[3]; 667 #define SYSIB_TLE_POLARITY_MASK 0x03 668 #define SYSIB_TLE_DEDICATED 0x04 669 uint8_t flags; 670 uint8_t type; 671 uint16_t origin; 672 uint64_t mask; 673 } SysIBCPUListEntry; 674 QEMU_BUILD_BUG_ON(sizeof(SysIBCPUListEntry) != 16); 675 676 void insert_stsi_15_1_x(S390CPU *cpu, int sel2, uint64_t addr, uint8_t ar, uintptr_t ra); 677 void s390_cpu_topology_set_changed(bool changed); 678 679 /* MMU defines */ 680 #define ASCE_ORIGIN (~0xfffULL) /* segment table origin */ 681 #define ASCE_SUBSPACE 0x200 /* subspace group control */ 682 #define ASCE_PRIVATE_SPACE 0x100 /* private space control */ 683 #define ASCE_ALT_EVENT 0x80 /* storage alteration event control */ 684 #define ASCE_SPACE_SWITCH 0x40 /* space switch event */ 685 #define ASCE_REAL_SPACE 0x20 /* real space control */ 686 #define ASCE_TYPE_MASK 0x0c /* asce table type mask */ 687 #define ASCE_TYPE_REGION1 0x0c /* region first table type */ 688 #define ASCE_TYPE_REGION2 0x08 /* region second table type */ 689 #define ASCE_TYPE_REGION3 0x04 /* region third table type */ 690 #define ASCE_TYPE_SEGMENT 0x00 /* segment table type */ 691 #define ASCE_TABLE_LENGTH 0x03 /* region table length */ 692 693 #define REGION_ENTRY_ORIGIN 0xfffffffffffff000ULL 694 #define REGION_ENTRY_P 0x0000000000000200ULL 695 #define REGION_ENTRY_TF 0x00000000000000c0ULL 696 #define REGION_ENTRY_I 0x0000000000000020ULL 697 #define REGION_ENTRY_TT 0x000000000000000cULL 698 #define REGION_ENTRY_TL 0x0000000000000003ULL 699 700 #define REGION_ENTRY_TT_REGION1 0x000000000000000cULL 701 #define REGION_ENTRY_TT_REGION2 0x0000000000000008ULL 702 #define REGION_ENTRY_TT_REGION3 0x0000000000000004ULL 703 704 #define REGION3_ENTRY_RFAA 0xffffffff80000000ULL 705 #define REGION3_ENTRY_AV 0x0000000000010000ULL 706 #define REGION3_ENTRY_ACC 0x000000000000f000ULL 707 #define REGION3_ENTRY_F 0x0000000000000800ULL 708 #define REGION3_ENTRY_FC 0x0000000000000400ULL 709 #define REGION3_ENTRY_IEP 0x0000000000000100ULL 710 #define REGION3_ENTRY_CR 0x0000000000000010ULL 711 712 #define SEGMENT_ENTRY_ORIGIN 0xfffffffffffff800ULL 713 #define SEGMENT_ENTRY_SFAA 0xfffffffffff00000ULL 714 #define SEGMENT_ENTRY_AV 0x0000000000010000ULL 715 #define SEGMENT_ENTRY_ACC 0x000000000000f000ULL 716 #define SEGMENT_ENTRY_F 0x0000000000000800ULL 717 #define SEGMENT_ENTRY_FC 0x0000000000000400ULL 718 #define SEGMENT_ENTRY_P 0x0000000000000200ULL 719 #define SEGMENT_ENTRY_IEP 0x0000000000000100ULL 720 #define SEGMENT_ENTRY_I 0x0000000000000020ULL 721 #define SEGMENT_ENTRY_CS 0x0000000000000010ULL 722 #define SEGMENT_ENTRY_TT 0x000000000000000cULL 723 724 #define SEGMENT_ENTRY_TT_SEGMENT 0x0000000000000000ULL 725 726 #define PAGE_ENTRY_0 0x0000000000000800ULL 727 #define PAGE_ENTRY_I 0x0000000000000400ULL 728 #define PAGE_ENTRY_P 0x0000000000000200ULL 729 #define PAGE_ENTRY_IEP 0x0000000000000100ULL 730 731 #define VADDR_REGION1_TX_MASK 0xffe0000000000000ULL 732 #define VADDR_REGION2_TX_MASK 0x001ffc0000000000ULL 733 #define VADDR_REGION3_TX_MASK 0x000003ff80000000ULL 734 #define VADDR_SEGMENT_TX_MASK 0x000000007ff00000ULL 735 #define VADDR_PAGE_TX_MASK 0x00000000000ff000ULL 736 737 #define VADDR_REGION1_TX(vaddr) (((vaddr) & VADDR_REGION1_TX_MASK) >> 53) 738 #define VADDR_REGION2_TX(vaddr) (((vaddr) & VADDR_REGION2_TX_MASK) >> 42) 739 #define VADDR_REGION3_TX(vaddr) (((vaddr) & VADDR_REGION3_TX_MASK) >> 31) 740 #define VADDR_SEGMENT_TX(vaddr) (((vaddr) & VADDR_SEGMENT_TX_MASK) >> 20) 741 #define VADDR_PAGE_TX(vaddr) (((vaddr) & VADDR_PAGE_TX_MASK) >> 12) 742 743 #define VADDR_REGION1_TL(vaddr) (((vaddr) & 0xc000000000000000ULL) >> 62) 744 #define VADDR_REGION2_TL(vaddr) (((vaddr) & 0x0018000000000000ULL) >> 51) 745 #define VADDR_REGION3_TL(vaddr) (((vaddr) & 0x0000030000000000ULL) >> 40) 746 #define VADDR_SEGMENT_TL(vaddr) (((vaddr) & 0x0000000060000000ULL) >> 29) 747 748 #define SK_C (0x1 << 1) 749 #define SK_R (0x1 << 2) 750 #define SK_F (0x1 << 3) 751 #define SK_ACC_MASK (0xf << 4) 752 753 /* SIGP order codes */ 754 #define SIGP_SENSE 0x01 755 #define SIGP_EXTERNAL_CALL 0x02 756 #define SIGP_EMERGENCY 0x03 757 #define SIGP_START 0x04 758 #define SIGP_STOP 0x05 759 #define SIGP_RESTART 0x06 760 #define SIGP_STOP_STORE_STATUS 0x09 761 #define SIGP_INITIAL_CPU_RESET 0x0b 762 #define SIGP_CPU_RESET 0x0c 763 #define SIGP_SET_PREFIX 0x0d 764 #define SIGP_STORE_STATUS_ADDR 0x0e 765 #define SIGP_SET_ARCH 0x12 766 #define SIGP_COND_EMERGENCY 0x13 767 #define SIGP_SENSE_RUNNING 0x15 768 #define SIGP_STORE_ADTL_STATUS 0x17 769 770 /* SIGP condition codes */ 771 #define SIGP_CC_ORDER_CODE_ACCEPTED 0 772 #define SIGP_CC_STATUS_STORED 1 773 #define SIGP_CC_BUSY 2 774 #define SIGP_CC_NOT_OPERATIONAL 3 775 776 /* SIGP status bits */ 777 #define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL 778 #define SIGP_STAT_NOT_RUNNING 0x00000400UL 779 #define SIGP_STAT_INCORRECT_STATE 0x00000200UL 780 #define SIGP_STAT_INVALID_PARAMETER 0x00000100UL 781 #define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL 782 #define SIGP_STAT_STOPPED 0x00000040UL 783 #define SIGP_STAT_OPERATOR_INTERV 0x00000020UL 784 #define SIGP_STAT_CHECK_STOP 0x00000010UL 785 #define SIGP_STAT_INOPERATIVE 0x00000004UL 786 #define SIGP_STAT_INVALID_ORDER 0x00000002UL 787 #define SIGP_STAT_RECEIVER_CHECK 0x00000001UL 788 789 /* SIGP order code mask corresponding to bit positions 56-63 */ 790 #define SIGP_ORDER_MASK 0x000000ff 791 792 /* machine check interruption code */ 793 794 /* subclasses */ 795 #define MCIC_SC_SD 0x8000000000000000ULL 796 #define MCIC_SC_PD 0x4000000000000000ULL 797 #define MCIC_SC_SR 0x2000000000000000ULL 798 #define MCIC_SC_CD 0x0800000000000000ULL 799 #define MCIC_SC_ED 0x0400000000000000ULL 800 #define MCIC_SC_DG 0x0100000000000000ULL 801 #define MCIC_SC_W 0x0080000000000000ULL 802 #define MCIC_SC_CP 0x0040000000000000ULL 803 #define MCIC_SC_SP 0x0020000000000000ULL 804 #define MCIC_SC_CK 0x0010000000000000ULL 805 806 /* subclass modifiers */ 807 #define MCIC_SCM_B 0x0002000000000000ULL 808 #define MCIC_SCM_DA 0x0000000020000000ULL 809 #define MCIC_SCM_AP 0x0000000000080000ULL 810 811 /* storage errors */ 812 #define MCIC_SE_SE 0x0000800000000000ULL 813 #define MCIC_SE_SC 0x0000400000000000ULL 814 #define MCIC_SE_KE 0x0000200000000000ULL 815 #define MCIC_SE_DS 0x0000100000000000ULL 816 #define MCIC_SE_IE 0x0000000080000000ULL 817 818 /* validity bits */ 819 #define MCIC_VB_WP 0x0000080000000000ULL 820 #define MCIC_VB_MS 0x0000040000000000ULL 821 #define MCIC_VB_PM 0x0000020000000000ULL 822 #define MCIC_VB_IA 0x0000010000000000ULL 823 #define MCIC_VB_FA 0x0000008000000000ULL 824 #define MCIC_VB_VR 0x0000004000000000ULL 825 #define MCIC_VB_EC 0x0000002000000000ULL 826 #define MCIC_VB_FP 0x0000001000000000ULL 827 #define MCIC_VB_GR 0x0000000800000000ULL 828 #define MCIC_VB_CR 0x0000000400000000ULL 829 #define MCIC_VB_ST 0x0000000100000000ULL 830 #define MCIC_VB_AR 0x0000000040000000ULL 831 #define MCIC_VB_GS 0x0000000008000000ULL 832 #define MCIC_VB_PR 0x0000000000200000ULL 833 #define MCIC_VB_FC 0x0000000000100000ULL 834 #define MCIC_VB_CT 0x0000000000020000ULL 835 #define MCIC_VB_CC 0x0000000000010000ULL 836 837 static inline uint64_t s390_build_validity_mcic(void) 838 { 839 uint64_t mcic; 840 841 /* 842 * Indicate all validity bits (no damage) only. Other bits have to be 843 * added by the caller. (storage errors, subclasses and subclass modifiers) 844 */ 845 mcic = MCIC_VB_WP | MCIC_VB_MS | MCIC_VB_PM | MCIC_VB_IA | MCIC_VB_FP | 846 MCIC_VB_GR | MCIC_VB_CR | MCIC_VB_ST | MCIC_VB_AR | MCIC_VB_PR | 847 MCIC_VB_FC | MCIC_VB_CT | MCIC_VB_CC; 848 if (s390_has_feat(S390_FEAT_VECTOR)) { 849 mcic |= MCIC_VB_VR; 850 } 851 if (s390_has_feat(S390_FEAT_GUARDED_STORAGE)) { 852 mcic |= MCIC_VB_GS; 853 } 854 return mcic; 855 } 856 857 static inline void s390_do_cpu_full_reset(CPUState *cs, run_on_cpu_data arg) 858 { 859 cpu_reset(cs); 860 } 861 862 static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg) 863 { 864 resettable_reset(OBJECT(cs), RESET_TYPE_S390_CPU_NORMAL); 865 } 866 867 static inline void s390_do_cpu_initial_reset(CPUState *cs, run_on_cpu_data arg) 868 { 869 resettable_reset(OBJECT(cs), RESET_TYPE_S390_CPU_INITIAL); 870 } 871 872 static inline void s390_do_cpu_load_normal(CPUState *cs, run_on_cpu_data arg) 873 { 874 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 875 876 scc->load_normal(cs); 877 } 878 879 880 /* cpu.c */ 881 void s390_crypto_reset(void); 882 void s390_cmma_reset(void); 883 void s390_enable_css_support(S390CPU *cpu); 884 void s390_do_cpu_set_diag318(CPUState *cs, run_on_cpu_data arg); 885 int s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch_id, 886 int vq, bool assign); 887 #ifndef CONFIG_USER_ONLY 888 unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu); 889 #else 890 static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) 891 { 892 return 0; 893 } 894 #endif /* CONFIG_USER_ONLY */ 895 static inline uint8_t s390_cpu_get_state(S390CPU *cpu) 896 { 897 return cpu->env.cpu_state; 898 } 899 900 901 /* helper.c */ 902 #define CPU_RESOLVING_TYPE TYPE_S390_CPU 903 904 /* interrupt.c */ 905 #define RA_IGNORED 0 906 void s390_program_interrupt(CPUS390XState *env, uint32_t code, uintptr_t ra); 907 /* service interrupts are floating therefore we must not pass an cpustate */ 908 void s390_sclp_extint(uint32_t parm); 909 910 /* mmu_helper.c */ 911 int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf, 912 int len, bool is_write); 913 #define s390_cpu_virt_mem_read(cpu, laddr, ar, dest, len) \ 914 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, false) 915 #define s390_cpu_virt_mem_write(cpu, laddr, ar, dest, len) \ 916 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, true) 917 #define s390_cpu_virt_mem_check_read(cpu, laddr, ar, len) \ 918 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, false) 919 #define s390_cpu_virt_mem_check_write(cpu, laddr, ar, len) \ 920 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, true) 921 void s390_cpu_virt_mem_handle_exc(S390CPU *cpu, uintptr_t ra); 922 int s390_cpu_pv_mem_rw(S390CPU *cpu, unsigned int offset, void *hostbuf, 923 int len, bool is_write); 924 #define s390_cpu_pv_mem_read(cpu, offset, dest, len) \ 925 s390_cpu_pv_mem_rw(cpu, offset, dest, len, false) 926 #define s390_cpu_pv_mem_write(cpu, offset, dest, len) \ 927 s390_cpu_pv_mem_rw(cpu, offset, dest, len, true) 928 929 /* sigp.c */ 930 int s390_cpu_restart(S390CPU *cpu); 931 void s390_init_sigp(void); 932 933 /* helper.c */ 934 void s390_cpu_set_psw(CPUS390XState *env, uint64_t mask, uint64_t addr); 935 uint64_t s390_cpu_get_psw_mask(CPUS390XState *env); 936 937 /* outside of target/s390x/ */ 938 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr); 939 940 #endif 941