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 "qemu-common.h" 25 #include "cpu-qom.h" 26 #include "cpu_models.h" 27 #include "exec/cpu-defs.h" 28 29 #define ELF_MACHINE_UNAME "S390X" 30 31 /* The z/Architecture has a strong memory model with some store-after-load re-ordering */ 32 #define TCG_GUEST_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD) 33 34 #define TARGET_INSN_START_EXTRA_WORDS 1 35 36 #define MMU_MODE0_SUFFIX _primary 37 #define MMU_MODE1_SUFFIX _secondary 38 #define MMU_MODE2_SUFFIX _home 39 #define MMU_MODE3_SUFFIX _real 40 41 #define MMU_USER_IDX 0 42 43 #define S390_MAX_CPUS 248 44 45 typedef struct PSW { 46 uint64_t mask; 47 uint64_t addr; 48 } PSW; 49 50 struct CPUS390XState { 51 uint64_t regs[16]; /* GP registers */ 52 /* 53 * The floating point registers are part of the vector registers. 54 * vregs[0][0] -> vregs[15][0] are 16 floating point registers 55 */ 56 uint64_t vregs[32][2] QEMU_ALIGNED(16); /* vector registers */ 57 uint32_t aregs[16]; /* access registers */ 58 uint8_t riccb[64]; /* runtime instrumentation control */ 59 uint64_t gscb[4]; /* guarded storage control */ 60 uint64_t etoken; /* etoken */ 61 uint64_t etoken_extension; /* etoken extension */ 62 63 /* Fields up to this point are not cleared by initial CPU reset */ 64 struct {} start_initial_reset_fields; 65 66 uint32_t fpc; /* floating-point control register */ 67 uint32_t cc_op; 68 bool bpbc; /* branch prediction blocking */ 69 70 float_status fpu_status; /* passed to softfloat lib */ 71 72 /* The low part of a 128-bit return, or remainder of a divide. */ 73 uint64_t retxl; 74 75 PSW psw; 76 77 S390CrashReason crash_reason; 78 79 uint64_t cc_src; 80 uint64_t cc_dst; 81 uint64_t cc_vr; 82 83 uint64_t ex_value; 84 85 uint64_t __excp_addr; 86 uint64_t psa; 87 88 uint32_t int_pgm_code; 89 uint32_t int_pgm_ilen; 90 91 uint32_t int_svc_code; 92 uint32_t int_svc_ilen; 93 94 uint64_t per_address; 95 uint16_t per_perc_atmid; 96 97 uint64_t cregs[16]; /* control registers */ 98 99 int pending_int; 100 uint16_t external_call_addr; 101 DECLARE_BITMAP(emergency_signals, S390_MAX_CPUS); 102 103 uint64_t ckc; 104 uint64_t cputm; 105 uint32_t todpr; 106 107 uint64_t pfault_token; 108 uint64_t pfault_compare; 109 uint64_t pfault_select; 110 111 uint64_t gbea; 112 uint64_t pp; 113 114 /* Fields up to this point are cleared by a CPU reset */ 115 struct {} end_reset_fields; 116 117 CPU_COMMON 118 119 #if !defined(CONFIG_USER_ONLY) 120 uint32_t core_id; /* PoP "CPU address", same as cpu_index */ 121 uint64_t cpuid; 122 #endif 123 124 QEMUTimer *tod_timer; 125 126 QEMUTimer *cpu_timer; 127 128 /* 129 * The cpu state represents the logical state of a cpu. In contrast to other 130 * architectures, there is a difference between a halt and a stop on s390. 131 * If all cpus are either stopped (including check stop) or in the disabled 132 * wait state, the vm can be shut down. 133 * The acceptable cpu_state values are defined in the CpuInfoS390State 134 * enum. 135 */ 136 uint8_t cpu_state; 137 138 /* currently processed sigp order */ 139 uint8_t sigp_order; 140 141 }; 142 143 static inline uint64_t *get_freg(CPUS390XState *cs, int nr) 144 { 145 return &cs->vregs[nr][0]; 146 } 147 148 /** 149 * S390CPU: 150 * @env: #CPUS390XState. 151 * 152 * An S/390 CPU. 153 */ 154 struct S390CPU { 155 /*< private >*/ 156 CPUState parent_obj; 157 /*< public >*/ 158 159 CPUS390XState env; 160 S390CPUModel *model; 161 /* needed for live migration */ 162 void *irqstate; 163 uint32_t irqstate_saved_size; 164 }; 165 166 static inline S390CPU *s390_env_get_cpu(CPUS390XState *env) 167 { 168 return container_of(env, S390CPU, env); 169 } 170 171 #define ENV_GET_CPU(e) CPU(s390_env_get_cpu(e)) 172 173 #define ENV_OFFSET offsetof(S390CPU, env) 174 175 #ifndef CONFIG_USER_ONLY 176 extern const struct VMStateDescription vmstate_s390_cpu; 177 #endif 178 179 /* distinguish between 24 bit and 31 bit addressing */ 180 #define HIGH_ORDER_BIT 0x80000000 181 182 /* Interrupt Codes */ 183 /* Program Interrupts */ 184 #define PGM_OPERATION 0x0001 185 #define PGM_PRIVILEGED 0x0002 186 #define PGM_EXECUTE 0x0003 187 #define PGM_PROTECTION 0x0004 188 #define PGM_ADDRESSING 0x0005 189 #define PGM_SPECIFICATION 0x0006 190 #define PGM_DATA 0x0007 191 #define PGM_FIXPT_OVERFLOW 0x0008 192 #define PGM_FIXPT_DIVIDE 0x0009 193 #define PGM_DEC_OVERFLOW 0x000a 194 #define PGM_DEC_DIVIDE 0x000b 195 #define PGM_HFP_EXP_OVERFLOW 0x000c 196 #define PGM_HFP_EXP_UNDERFLOW 0x000d 197 #define PGM_HFP_SIGNIFICANCE 0x000e 198 #define PGM_HFP_DIVIDE 0x000f 199 #define PGM_SEGMENT_TRANS 0x0010 200 #define PGM_PAGE_TRANS 0x0011 201 #define PGM_TRANS_SPEC 0x0012 202 #define PGM_SPECIAL_OP 0x0013 203 #define PGM_OPERAND 0x0015 204 #define PGM_TRACE_TABLE 0x0016 205 #define PGM_VECTOR_PROCESSING 0x001b 206 #define PGM_SPACE_SWITCH 0x001c 207 #define PGM_HFP_SQRT 0x001d 208 #define PGM_PC_TRANS_SPEC 0x001f 209 #define PGM_AFX_TRANS 0x0020 210 #define PGM_ASX_TRANS 0x0021 211 #define PGM_LX_TRANS 0x0022 212 #define PGM_EX_TRANS 0x0023 213 #define PGM_PRIM_AUTH 0x0024 214 #define PGM_SEC_AUTH 0x0025 215 #define PGM_ALET_SPEC 0x0028 216 #define PGM_ALEN_SPEC 0x0029 217 #define PGM_ALE_SEQ 0x002a 218 #define PGM_ASTE_VALID 0x002b 219 #define PGM_ASTE_SEQ 0x002c 220 #define PGM_EXT_AUTH 0x002d 221 #define PGM_STACK_FULL 0x0030 222 #define PGM_STACK_EMPTY 0x0031 223 #define PGM_STACK_SPEC 0x0032 224 #define PGM_STACK_TYPE 0x0033 225 #define PGM_STACK_OP 0x0034 226 #define PGM_ASCE_TYPE 0x0038 227 #define PGM_REG_FIRST_TRANS 0x0039 228 #define PGM_REG_SEC_TRANS 0x003a 229 #define PGM_REG_THIRD_TRANS 0x003b 230 #define PGM_MONITOR 0x0040 231 #define PGM_PER 0x0080 232 #define PGM_CRYPTO 0x0119 233 234 /* External Interrupts */ 235 #define EXT_INTERRUPT_KEY 0x0040 236 #define EXT_CLOCK_COMP 0x1004 237 #define EXT_CPU_TIMER 0x1005 238 #define EXT_MALFUNCTION 0x1200 239 #define EXT_EMERGENCY 0x1201 240 #define EXT_EXTERNAL_CALL 0x1202 241 #define EXT_ETR 0x1406 242 #define EXT_SERVICE 0x2401 243 #define EXT_VIRTIO 0x2603 244 245 /* PSW defines */ 246 #undef PSW_MASK_PER 247 #undef PSW_MASK_UNUSED_2 248 #undef PSW_MASK_UNUSED_3 249 #undef PSW_MASK_DAT 250 #undef PSW_MASK_IO 251 #undef PSW_MASK_EXT 252 #undef PSW_MASK_KEY 253 #undef PSW_SHIFT_KEY 254 #undef PSW_MASK_MCHECK 255 #undef PSW_MASK_WAIT 256 #undef PSW_MASK_PSTATE 257 #undef PSW_MASK_ASC 258 #undef PSW_SHIFT_ASC 259 #undef PSW_MASK_CC 260 #undef PSW_MASK_PM 261 #undef PSW_SHIFT_MASK_PM 262 #undef PSW_MASK_64 263 #undef PSW_MASK_32 264 #undef PSW_MASK_ESA_ADDR 265 266 #define PSW_MASK_PER 0x4000000000000000ULL 267 #define PSW_MASK_UNUSED_2 0x2000000000000000ULL 268 #define PSW_MASK_UNUSED_3 0x1000000000000000ULL 269 #define PSW_MASK_DAT 0x0400000000000000ULL 270 #define PSW_MASK_IO 0x0200000000000000ULL 271 #define PSW_MASK_EXT 0x0100000000000000ULL 272 #define PSW_MASK_KEY 0x00F0000000000000ULL 273 #define PSW_SHIFT_KEY 52 274 #define PSW_MASK_MCHECK 0x0004000000000000ULL 275 #define PSW_MASK_WAIT 0x0002000000000000ULL 276 #define PSW_MASK_PSTATE 0x0001000000000000ULL 277 #define PSW_MASK_ASC 0x0000C00000000000ULL 278 #define PSW_SHIFT_ASC 46 279 #define PSW_MASK_CC 0x0000300000000000ULL 280 #define PSW_MASK_PM 0x00000F0000000000ULL 281 #define PSW_SHIFT_MASK_PM 40 282 #define PSW_MASK_64 0x0000000100000000ULL 283 #define PSW_MASK_32 0x0000000080000000ULL 284 #define PSW_MASK_ESA_ADDR 0x000000007fffffffULL 285 286 #undef PSW_ASC_PRIMARY 287 #undef PSW_ASC_ACCREG 288 #undef PSW_ASC_SECONDARY 289 #undef PSW_ASC_HOME 290 291 #define PSW_ASC_PRIMARY 0x0000000000000000ULL 292 #define PSW_ASC_ACCREG 0x0000400000000000ULL 293 #define PSW_ASC_SECONDARY 0x0000800000000000ULL 294 #define PSW_ASC_HOME 0x0000C00000000000ULL 295 296 /* the address space values shifted */ 297 #define AS_PRIMARY 0 298 #define AS_ACCREG 1 299 #define AS_SECONDARY 2 300 #define AS_HOME 3 301 302 /* tb flags */ 303 304 #define FLAG_MASK_PSW_SHIFT 31 305 #define FLAG_MASK_PER (PSW_MASK_PER >> FLAG_MASK_PSW_SHIFT) 306 #define FLAG_MASK_DAT (PSW_MASK_DAT >> FLAG_MASK_PSW_SHIFT) 307 #define FLAG_MASK_PSTATE (PSW_MASK_PSTATE >> FLAG_MASK_PSW_SHIFT) 308 #define FLAG_MASK_ASC (PSW_MASK_ASC >> FLAG_MASK_PSW_SHIFT) 309 #define FLAG_MASK_64 (PSW_MASK_64 >> FLAG_MASK_PSW_SHIFT) 310 #define FLAG_MASK_32 (PSW_MASK_32 >> FLAG_MASK_PSW_SHIFT) 311 #define FLAG_MASK_PSW (FLAG_MASK_PER | FLAG_MASK_DAT | FLAG_MASK_PSTATE \ 312 | FLAG_MASK_ASC | FLAG_MASK_64 | FLAG_MASK_32) 313 314 /* we'll use some unused PSW positions to store CR flags in tb flags */ 315 #define FLAG_MASK_AFP (PSW_MASK_UNUSED_2 >> FLAG_MASK_PSW_SHIFT) 316 #define FLAG_MASK_VECTOR (PSW_MASK_UNUSED_3 >> FLAG_MASK_PSW_SHIFT) 317 318 /* Control register 0 bits */ 319 #define CR0_LOWPROT 0x0000000010000000ULL 320 #define CR0_SECONDARY 0x0000000004000000ULL 321 #define CR0_EDAT 0x0000000000800000ULL 322 #define CR0_AFP 0x0000000000040000ULL 323 #define CR0_VECTOR 0x0000000000020000ULL 324 #define CR0_EMERGENCY_SIGNAL_SC 0x0000000000004000ULL 325 #define CR0_EXTERNAL_CALL_SC 0x0000000000002000ULL 326 #define CR0_CKC_SC 0x0000000000000800ULL 327 #define CR0_CPU_TIMER_SC 0x0000000000000400ULL 328 #define CR0_SERVICE_SC 0x0000000000000200ULL 329 330 /* Control register 14 bits */ 331 #define CR14_CHANNEL_REPORT_SC 0x0000000010000000ULL 332 333 /* MMU */ 334 #define MMU_PRIMARY_IDX 0 335 #define MMU_SECONDARY_IDX 1 336 #define MMU_HOME_IDX 2 337 #define MMU_REAL_IDX 3 338 339 static inline int cpu_mmu_index(CPUS390XState *env, bool ifetch) 340 { 341 if (!(env->psw.mask & PSW_MASK_DAT)) { 342 return MMU_REAL_IDX; 343 } 344 345 switch (env->psw.mask & PSW_MASK_ASC) { 346 case PSW_ASC_PRIMARY: 347 return MMU_PRIMARY_IDX; 348 case PSW_ASC_SECONDARY: 349 return MMU_SECONDARY_IDX; 350 case PSW_ASC_HOME: 351 return MMU_HOME_IDX; 352 case PSW_ASC_ACCREG: 353 /* Fallthrough: access register mode is not yet supported */ 354 default: 355 abort(); 356 } 357 } 358 359 static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc, 360 target_ulong *cs_base, uint32_t *flags) 361 { 362 *pc = env->psw.addr; 363 *cs_base = env->ex_value; 364 *flags = (env->psw.mask >> FLAG_MASK_PSW_SHIFT) & FLAG_MASK_PSW; 365 if (env->cregs[0] & CR0_AFP) { 366 *flags |= FLAG_MASK_AFP; 367 } 368 if (env->cregs[0] & CR0_VECTOR) { 369 *flags |= FLAG_MASK_VECTOR; 370 } 371 } 372 373 /* PER bits from control register 9 */ 374 #define PER_CR9_EVENT_BRANCH 0x80000000 375 #define PER_CR9_EVENT_IFETCH 0x40000000 376 #define PER_CR9_EVENT_STORE 0x20000000 377 #define PER_CR9_EVENT_STORE_REAL 0x08000000 378 #define PER_CR9_EVENT_NULLIFICATION 0x01000000 379 #define PER_CR9_CONTROL_BRANCH_ADDRESS 0x00800000 380 #define PER_CR9_CONTROL_ALTERATION 0x00200000 381 382 /* PER bits from the PER CODE/ATMID/AI in lowcore */ 383 #define PER_CODE_EVENT_BRANCH 0x8000 384 #define PER_CODE_EVENT_IFETCH 0x4000 385 #define PER_CODE_EVENT_STORE 0x2000 386 #define PER_CODE_EVENT_STORE_REAL 0x0800 387 #define PER_CODE_EVENT_NULLIFICATION 0x0100 388 389 #define EXCP_EXT 1 /* external interrupt */ 390 #define EXCP_SVC 2 /* supervisor call (syscall) */ 391 #define EXCP_PGM 3 /* program interruption */ 392 #define EXCP_RESTART 4 /* restart interrupt */ 393 #define EXCP_STOP 5 /* stop interrupt */ 394 #define EXCP_IO 7 /* I/O interrupt */ 395 #define EXCP_MCHK 8 /* machine check */ 396 397 #define INTERRUPT_EXT_CPU_TIMER (1 << 3) 398 #define INTERRUPT_EXT_CLOCK_COMPARATOR (1 << 4) 399 #define INTERRUPT_EXTERNAL_CALL (1 << 5) 400 #define INTERRUPT_EMERGENCY_SIGNAL (1 << 6) 401 #define INTERRUPT_RESTART (1 << 7) 402 #define INTERRUPT_STOP (1 << 8) 403 404 /* Program Status Word. */ 405 #define S390_PSWM_REGNUM 0 406 #define S390_PSWA_REGNUM 1 407 /* General Purpose Registers. */ 408 #define S390_R0_REGNUM 2 409 #define S390_R1_REGNUM 3 410 #define S390_R2_REGNUM 4 411 #define S390_R3_REGNUM 5 412 #define S390_R4_REGNUM 6 413 #define S390_R5_REGNUM 7 414 #define S390_R6_REGNUM 8 415 #define S390_R7_REGNUM 9 416 #define S390_R8_REGNUM 10 417 #define S390_R9_REGNUM 11 418 #define S390_R10_REGNUM 12 419 #define S390_R11_REGNUM 13 420 #define S390_R12_REGNUM 14 421 #define S390_R13_REGNUM 15 422 #define S390_R14_REGNUM 16 423 #define S390_R15_REGNUM 17 424 /* Total Core Registers. */ 425 #define S390_NUM_CORE_REGS 18 426 427 static inline void setcc(S390CPU *cpu, uint64_t cc) 428 { 429 CPUS390XState *env = &cpu->env; 430 431 env->psw.mask &= ~(3ull << 44); 432 env->psw.mask |= (cc & 3) << 44; 433 env->cc_op = cc; 434 } 435 436 /* STSI */ 437 #define STSI_R0_FC_MASK 0x00000000f0000000ULL 438 #define STSI_R0_FC_CURRENT 0x0000000000000000ULL 439 #define STSI_R0_FC_LEVEL_1 0x0000000010000000ULL 440 #define STSI_R0_FC_LEVEL_2 0x0000000020000000ULL 441 #define STSI_R0_FC_LEVEL_3 0x0000000030000000ULL 442 #define STSI_R0_RESERVED_MASK 0x000000000fffff00ULL 443 #define STSI_R0_SEL1_MASK 0x00000000000000ffULL 444 #define STSI_R1_RESERVED_MASK 0x00000000ffff0000ULL 445 #define STSI_R1_SEL2_MASK 0x000000000000ffffULL 446 447 /* Basic Machine Configuration */ 448 typedef struct SysIB_111 { 449 uint8_t res1[32]; 450 uint8_t manuf[16]; 451 uint8_t type[4]; 452 uint8_t res2[12]; 453 uint8_t model[16]; 454 uint8_t sequence[16]; 455 uint8_t plant[4]; 456 uint8_t res3[3996]; 457 } SysIB_111; 458 QEMU_BUILD_BUG_ON(sizeof(SysIB_111) != 4096); 459 460 /* Basic Machine CPU */ 461 typedef struct SysIB_121 { 462 uint8_t res1[80]; 463 uint8_t sequence[16]; 464 uint8_t plant[4]; 465 uint8_t res2[2]; 466 uint16_t cpu_addr; 467 uint8_t res3[3992]; 468 } SysIB_121; 469 QEMU_BUILD_BUG_ON(sizeof(SysIB_121) != 4096); 470 471 /* Basic Machine CPUs */ 472 typedef struct SysIB_122 { 473 uint8_t res1[32]; 474 uint32_t capability; 475 uint16_t total_cpus; 476 uint16_t conf_cpus; 477 uint16_t standby_cpus; 478 uint16_t reserved_cpus; 479 uint16_t adjustments[2026]; 480 } SysIB_122; 481 QEMU_BUILD_BUG_ON(sizeof(SysIB_122) != 4096); 482 483 /* LPAR CPU */ 484 typedef struct SysIB_221 { 485 uint8_t res1[80]; 486 uint8_t sequence[16]; 487 uint8_t plant[4]; 488 uint16_t cpu_id; 489 uint16_t cpu_addr; 490 uint8_t res3[3992]; 491 } SysIB_221; 492 QEMU_BUILD_BUG_ON(sizeof(SysIB_221) != 4096); 493 494 /* LPAR CPUs */ 495 typedef struct SysIB_222 { 496 uint8_t res1[32]; 497 uint16_t lpar_num; 498 uint8_t res2; 499 uint8_t lcpuc; 500 uint16_t total_cpus; 501 uint16_t conf_cpus; 502 uint16_t standby_cpus; 503 uint16_t reserved_cpus; 504 uint8_t name[8]; 505 uint32_t caf; 506 uint8_t res3[16]; 507 uint16_t dedicated_cpus; 508 uint16_t shared_cpus; 509 uint8_t res4[4020]; 510 } SysIB_222; 511 QEMU_BUILD_BUG_ON(sizeof(SysIB_222) != 4096); 512 513 /* VM CPUs */ 514 typedef struct SysIB_322 { 515 uint8_t res1[31]; 516 uint8_t count; 517 struct { 518 uint8_t res2[4]; 519 uint16_t total_cpus; 520 uint16_t conf_cpus; 521 uint16_t standby_cpus; 522 uint16_t reserved_cpus; 523 uint8_t name[8]; 524 uint32_t caf; 525 uint8_t cpi[16]; 526 uint8_t res5[3]; 527 uint8_t ext_name_encoding; 528 uint32_t res3; 529 uint8_t uuid[16]; 530 } vm[8]; 531 uint8_t res4[1504]; 532 uint8_t ext_names[8][256]; 533 } SysIB_322; 534 QEMU_BUILD_BUG_ON(sizeof(SysIB_322) != 4096); 535 536 typedef union SysIB { 537 SysIB_111 sysib_111; 538 SysIB_121 sysib_121; 539 SysIB_122 sysib_122; 540 SysIB_221 sysib_221; 541 SysIB_222 sysib_222; 542 SysIB_322 sysib_322; 543 } SysIB; 544 QEMU_BUILD_BUG_ON(sizeof(SysIB) != 4096); 545 546 /* MMU defines */ 547 #define ASCE_ORIGIN (~0xfffULL) /* segment table origin */ 548 #define ASCE_SUBSPACE 0x200 /* subspace group control */ 549 #define ASCE_PRIVATE_SPACE 0x100 /* private space control */ 550 #define ASCE_ALT_EVENT 0x80 /* storage alteration event control */ 551 #define ASCE_SPACE_SWITCH 0x40 /* space switch event */ 552 #define ASCE_REAL_SPACE 0x20 /* real space control */ 553 #define ASCE_TYPE_MASK 0x0c /* asce table type mask */ 554 #define ASCE_TYPE_REGION1 0x0c /* region first table type */ 555 #define ASCE_TYPE_REGION2 0x08 /* region second table type */ 556 #define ASCE_TYPE_REGION3 0x04 /* region third table type */ 557 #define ASCE_TYPE_SEGMENT 0x00 /* segment table type */ 558 #define ASCE_TABLE_LENGTH 0x03 /* region table length */ 559 560 #define REGION_ENTRY_ORIGIN (~0xfffULL) /* region/segment table origin */ 561 #define REGION_ENTRY_RO 0x200 /* region/segment protection bit */ 562 #define REGION_ENTRY_TF 0xc0 /* region/segment table offset */ 563 #define REGION_ENTRY_INV 0x20 /* invalid region table entry */ 564 #define REGION_ENTRY_TYPE_MASK 0x0c /* region/segment table type mask */ 565 #define REGION_ENTRY_TYPE_R1 0x0c /* region first table type */ 566 #define REGION_ENTRY_TYPE_R2 0x08 /* region second table type */ 567 #define REGION_ENTRY_TYPE_R3 0x04 /* region third table type */ 568 #define REGION_ENTRY_LENGTH 0x03 /* region third length */ 569 570 #define SEGMENT_ENTRY_ORIGIN (~0x7ffULL) /* segment table origin */ 571 #define SEGMENT_ENTRY_FC 0x400 /* format control */ 572 #define SEGMENT_ENTRY_RO 0x200 /* page protection bit */ 573 #define SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ 574 575 #define VADDR_PX 0xff000 /* page index bits */ 576 577 #define PAGE_RO 0x200 /* HW read-only bit */ 578 #define PAGE_INVALID 0x400 /* HW invalid bit */ 579 #define PAGE_RES0 0x800 /* bit must be zero */ 580 581 #define SK_C (0x1 << 1) 582 #define SK_R (0x1 << 2) 583 #define SK_F (0x1 << 3) 584 #define SK_ACC_MASK (0xf << 4) 585 586 /* SIGP order codes */ 587 #define SIGP_SENSE 0x01 588 #define SIGP_EXTERNAL_CALL 0x02 589 #define SIGP_EMERGENCY 0x03 590 #define SIGP_START 0x04 591 #define SIGP_STOP 0x05 592 #define SIGP_RESTART 0x06 593 #define SIGP_STOP_STORE_STATUS 0x09 594 #define SIGP_INITIAL_CPU_RESET 0x0b 595 #define SIGP_CPU_RESET 0x0c 596 #define SIGP_SET_PREFIX 0x0d 597 #define SIGP_STORE_STATUS_ADDR 0x0e 598 #define SIGP_SET_ARCH 0x12 599 #define SIGP_COND_EMERGENCY 0x13 600 #define SIGP_SENSE_RUNNING 0x15 601 #define SIGP_STORE_ADTL_STATUS 0x17 602 603 /* SIGP condition codes */ 604 #define SIGP_CC_ORDER_CODE_ACCEPTED 0 605 #define SIGP_CC_STATUS_STORED 1 606 #define SIGP_CC_BUSY 2 607 #define SIGP_CC_NOT_OPERATIONAL 3 608 609 /* SIGP status bits */ 610 #define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL 611 #define SIGP_STAT_NOT_RUNNING 0x00000400UL 612 #define SIGP_STAT_INCORRECT_STATE 0x00000200UL 613 #define SIGP_STAT_INVALID_PARAMETER 0x00000100UL 614 #define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL 615 #define SIGP_STAT_STOPPED 0x00000040UL 616 #define SIGP_STAT_OPERATOR_INTERV 0x00000020UL 617 #define SIGP_STAT_CHECK_STOP 0x00000010UL 618 #define SIGP_STAT_INOPERATIVE 0x00000004UL 619 #define SIGP_STAT_INVALID_ORDER 0x00000002UL 620 #define SIGP_STAT_RECEIVER_CHECK 0x00000001UL 621 622 /* SIGP SET ARCHITECTURE modes */ 623 #define SIGP_MODE_ESA_S390 0 624 #define SIGP_MODE_Z_ARCH_TRANS_ALL_PSW 1 625 #define SIGP_MODE_Z_ARCH_TRANS_CUR_PSW 2 626 627 /* SIGP order code mask corresponding to bit positions 56-63 */ 628 #define SIGP_ORDER_MASK 0x000000ff 629 630 /* machine check interruption code */ 631 632 /* subclasses */ 633 #define MCIC_SC_SD 0x8000000000000000ULL 634 #define MCIC_SC_PD 0x4000000000000000ULL 635 #define MCIC_SC_SR 0x2000000000000000ULL 636 #define MCIC_SC_CD 0x0800000000000000ULL 637 #define MCIC_SC_ED 0x0400000000000000ULL 638 #define MCIC_SC_DG 0x0100000000000000ULL 639 #define MCIC_SC_W 0x0080000000000000ULL 640 #define MCIC_SC_CP 0x0040000000000000ULL 641 #define MCIC_SC_SP 0x0020000000000000ULL 642 #define MCIC_SC_CK 0x0010000000000000ULL 643 644 /* subclass modifiers */ 645 #define MCIC_SCM_B 0x0002000000000000ULL 646 #define MCIC_SCM_DA 0x0000000020000000ULL 647 #define MCIC_SCM_AP 0x0000000000080000ULL 648 649 /* storage errors */ 650 #define MCIC_SE_SE 0x0000800000000000ULL 651 #define MCIC_SE_SC 0x0000400000000000ULL 652 #define MCIC_SE_KE 0x0000200000000000ULL 653 #define MCIC_SE_DS 0x0000100000000000ULL 654 #define MCIC_SE_IE 0x0000000080000000ULL 655 656 /* validity bits */ 657 #define MCIC_VB_WP 0x0000080000000000ULL 658 #define MCIC_VB_MS 0x0000040000000000ULL 659 #define MCIC_VB_PM 0x0000020000000000ULL 660 #define MCIC_VB_IA 0x0000010000000000ULL 661 #define MCIC_VB_FA 0x0000008000000000ULL 662 #define MCIC_VB_VR 0x0000004000000000ULL 663 #define MCIC_VB_EC 0x0000002000000000ULL 664 #define MCIC_VB_FP 0x0000001000000000ULL 665 #define MCIC_VB_GR 0x0000000800000000ULL 666 #define MCIC_VB_CR 0x0000000400000000ULL 667 #define MCIC_VB_ST 0x0000000100000000ULL 668 #define MCIC_VB_AR 0x0000000040000000ULL 669 #define MCIC_VB_GS 0x0000000008000000ULL 670 #define MCIC_VB_PR 0x0000000000200000ULL 671 #define MCIC_VB_FC 0x0000000000100000ULL 672 #define MCIC_VB_CT 0x0000000000020000ULL 673 #define MCIC_VB_CC 0x0000000000010000ULL 674 675 static inline uint64_t s390_build_validity_mcic(void) 676 { 677 uint64_t mcic; 678 679 /* 680 * Indicate all validity bits (no damage) only. Other bits have to be 681 * added by the caller. (storage errors, subclasses and subclass modifiers) 682 */ 683 mcic = MCIC_VB_WP | MCIC_VB_MS | MCIC_VB_PM | MCIC_VB_IA | MCIC_VB_FP | 684 MCIC_VB_GR | MCIC_VB_CR | MCIC_VB_ST | MCIC_VB_AR | MCIC_VB_PR | 685 MCIC_VB_FC | MCIC_VB_CT | MCIC_VB_CC; 686 if (s390_has_feat(S390_FEAT_VECTOR)) { 687 mcic |= MCIC_VB_VR; 688 } 689 if (s390_has_feat(S390_FEAT_GUARDED_STORAGE)) { 690 mcic |= MCIC_VB_GS; 691 } 692 return mcic; 693 } 694 695 static inline void s390_do_cpu_full_reset(CPUState *cs, run_on_cpu_data arg) 696 { 697 cpu_reset(cs); 698 } 699 700 static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg) 701 { 702 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 703 704 scc->cpu_reset(cs); 705 } 706 707 static inline void s390_do_cpu_initial_reset(CPUState *cs, run_on_cpu_data arg) 708 { 709 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 710 711 scc->initial_cpu_reset(cs); 712 } 713 714 static inline void s390_do_cpu_load_normal(CPUState *cs, run_on_cpu_data arg) 715 { 716 S390CPUClass *scc = S390_CPU_GET_CLASS(cs); 717 718 scc->load_normal(cs); 719 } 720 721 722 /* cpu.c */ 723 void s390_crypto_reset(void); 724 int s390_set_memory_limit(uint64_t new_limit, uint64_t *hw_limit); 725 void s390_set_max_pagesize(uint64_t pagesize, Error **errp); 726 void s390_cmma_reset(void); 727 void s390_enable_css_support(S390CPU *cpu); 728 int s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch_id, 729 int vq, bool assign); 730 #ifndef CONFIG_USER_ONLY 731 unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu); 732 #else 733 static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) 734 { 735 return 0; 736 } 737 #endif /* CONFIG_USER_ONLY */ 738 static inline uint8_t s390_cpu_get_state(S390CPU *cpu) 739 { 740 return cpu->env.cpu_state; 741 } 742 743 744 /* cpu_models.c */ 745 void s390_cpu_list(void); 746 #define cpu_list s390_cpu_list 747 void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga, 748 const S390FeatInit feat_init); 749 750 751 /* helper.c */ 752 #define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU 753 #define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX) 754 #define CPU_RESOLVING_TYPE TYPE_S390_CPU 755 756 /* you can call this signal handler from your SIGBUS and SIGSEGV 757 signal handlers to inform the virtual CPU of exceptions. non zero 758 is returned if the signal was handled by the virtual CPU. */ 759 int cpu_s390x_signal_handler(int host_signum, void *pinfo, void *puc); 760 #define cpu_signal_handler cpu_s390x_signal_handler 761 762 763 /* interrupt.c */ 764 void s390_crw_mchk(void); 765 void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr, 766 uint32_t io_int_parm, uint32_t io_int_word); 767 /* automatically detect the instruction length */ 768 #define ILEN_AUTO 0xff 769 #define RA_IGNORED 0 770 void s390_program_interrupt(CPUS390XState *env, uint32_t code, int ilen, 771 uintptr_t ra); 772 /* service interrupts are floating therefore we must not pass an cpustate */ 773 void s390_sclp_extint(uint32_t parm); 774 775 /* mmu_helper.c */ 776 int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf, 777 int len, bool is_write); 778 #define s390_cpu_virt_mem_read(cpu, laddr, ar, dest, len) \ 779 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, false) 780 #define s390_cpu_virt_mem_write(cpu, laddr, ar, dest, len) \ 781 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, true) 782 #define s390_cpu_virt_mem_check_read(cpu, laddr, ar, len) \ 783 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, false) 784 #define s390_cpu_virt_mem_check_write(cpu, laddr, ar, len) \ 785 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, true) 786 void s390_cpu_virt_mem_handle_exc(S390CPU *cpu, uintptr_t ra); 787 788 789 /* sigp.c */ 790 int s390_cpu_restart(S390CPU *cpu); 791 void s390_init_sigp(void); 792 793 794 /* outside of target/s390x/ */ 795 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr); 796 797 typedef CPUS390XState CPUArchState; 798 typedef S390CPU ArchCPU; 799 800 #include "exec/cpu-all.h" 801 802 #endif 803