1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * definition for kernel virtual machines on s390 4 * 5 * Copyright IBM Corp. 2008, 2018 6 * 7 * Author(s): Carsten Otte <cotte@de.ibm.com> 8 */ 9 10 11 #ifndef ASM_KVM_HOST_H 12 #define ASM_KVM_HOST_H 13 14 #include <linux/types.h> 15 #include <linux/hrtimer.h> 16 #include <linux/interrupt.h> 17 #include <linux/kvm_types.h> 18 #include <linux/kvm_host.h> 19 #include <linux/kvm.h> 20 #include <linux/seqlock.h> 21 #include <linux/module.h> 22 #include <asm/debug.h> 23 #include <asm/cpu.h> 24 #include <asm/fpu/api.h> 25 #include <asm/isc.h> 26 #include <asm/guarded_storage.h> 27 28 #define KVM_S390_BSCA_CPU_SLOTS 64 29 #define KVM_S390_ESCA_CPU_SLOTS 248 30 #define KVM_MAX_VCPUS 255 31 #define KVM_USER_MEM_SLOTS 32 32 33 /* 34 * These seem to be used for allocating ->chip in the routing table, 35 * which we don't use. 4096 is an out-of-thin-air value. If we need 36 * to look at ->chip later on, we'll need to revisit this. 37 */ 38 #define KVM_NR_IRQCHIPS 1 39 #define KVM_IRQCHIP_NUM_PINS 4096 40 #define KVM_HALT_POLL_NS_DEFAULT 50000 41 42 /* s390-specific vcpu->requests bit members */ 43 #define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0) 44 #define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1) 45 #define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2) 46 #define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3) 47 #define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4) 48 #define KVM_REQ_VSIE_RESTART KVM_ARCH_REQ(5) 49 50 #define SIGP_CTRL_C 0x80 51 #define SIGP_CTRL_SCN_MASK 0x3f 52 53 union bsca_sigp_ctrl { 54 __u8 value; 55 struct { 56 __u8 c : 1; 57 __u8 r : 1; 58 __u8 scn : 6; 59 }; 60 }; 61 62 union esca_sigp_ctrl { 63 __u16 value; 64 struct { 65 __u8 c : 1; 66 __u8 reserved: 7; 67 __u8 scn; 68 }; 69 }; 70 71 struct esca_entry { 72 union esca_sigp_ctrl sigp_ctrl; 73 __u16 reserved1[3]; 74 __u64 sda; 75 __u64 reserved2[6]; 76 }; 77 78 struct bsca_entry { 79 __u8 reserved0; 80 union bsca_sigp_ctrl sigp_ctrl; 81 __u16 reserved[3]; 82 __u64 sda; 83 __u64 reserved2[2]; 84 }; 85 86 union ipte_control { 87 unsigned long val; 88 struct { 89 unsigned long k : 1; 90 unsigned long kh : 31; 91 unsigned long kg : 32; 92 }; 93 }; 94 95 struct bsca_block { 96 union ipte_control ipte_control; 97 __u64 reserved[5]; 98 __u64 mcn; 99 __u64 reserved2; 100 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS]; 101 }; 102 103 struct esca_block { 104 union ipte_control ipte_control; 105 __u64 reserved1[7]; 106 __u64 mcn[4]; 107 __u64 reserved2[20]; 108 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS]; 109 }; 110 111 /* 112 * This struct is used to store some machine check info from lowcore 113 * for machine checks that happen while the guest is running. 114 * This info in host's lowcore might be overwritten by a second machine 115 * check from host when host is in the machine check's high-level handling. 116 * The size is 24 bytes. 117 */ 118 struct mcck_volatile_info { 119 __u64 mcic; 120 __u64 failing_storage_address; 121 __u32 ext_damage_code; 122 __u32 reserved; 123 }; 124 125 #define CR0_INITIAL_MASK (CR0_UNUSED_56 | CR0_INTERRUPT_KEY_SUBMASK | \ 126 CR0_MEASUREMENT_ALERT_SUBMASK) 127 #define CR14_INITIAL_MASK (CR14_UNUSED_32 | CR14_UNUSED_33 | \ 128 CR14_EXTERNAL_DAMAGE_SUBMASK) 129 130 #define SIDAD_SIZE_MASK 0xff 131 #define sida_origin(sie_block) \ 132 ((sie_block)->sidad & PAGE_MASK) 133 #define sida_size(sie_block) \ 134 ((((sie_block)->sidad & SIDAD_SIZE_MASK) + 1) * PAGE_SIZE) 135 136 #define CPUSTAT_STOPPED 0x80000000 137 #define CPUSTAT_WAIT 0x10000000 138 #define CPUSTAT_ECALL_PEND 0x08000000 139 #define CPUSTAT_STOP_INT 0x04000000 140 #define CPUSTAT_IO_INT 0x02000000 141 #define CPUSTAT_EXT_INT 0x01000000 142 #define CPUSTAT_RUNNING 0x00800000 143 #define CPUSTAT_RETAINED 0x00400000 144 #define CPUSTAT_TIMING_SUB 0x00020000 145 #define CPUSTAT_SIE_SUB 0x00010000 146 #define CPUSTAT_RRF 0x00008000 147 #define CPUSTAT_SLSV 0x00004000 148 #define CPUSTAT_SLSR 0x00002000 149 #define CPUSTAT_ZARCH 0x00000800 150 #define CPUSTAT_MCDS 0x00000100 151 #define CPUSTAT_KSS 0x00000200 152 #define CPUSTAT_SM 0x00000080 153 #define CPUSTAT_IBS 0x00000040 154 #define CPUSTAT_GED2 0x00000010 155 #define CPUSTAT_G 0x00000008 156 #define CPUSTAT_GED 0x00000004 157 #define CPUSTAT_J 0x00000002 158 #define CPUSTAT_P 0x00000001 159 160 struct kvm_s390_sie_block { 161 atomic_t cpuflags; /* 0x0000 */ 162 __u32 : 1; /* 0x0004 */ 163 __u32 prefix : 18; 164 __u32 : 1; 165 __u32 ibc : 12; 166 __u8 reserved08[4]; /* 0x0008 */ 167 #define PROG_IN_SIE (1<<0) 168 __u32 prog0c; /* 0x000c */ 169 union { 170 __u8 reserved10[16]; /* 0x0010 */ 171 struct { 172 __u64 pv_handle_cpu; 173 __u64 pv_handle_config; 174 }; 175 }; 176 #define PROG_BLOCK_SIE (1<<0) 177 #define PROG_REQUEST (1<<1) 178 atomic_t prog20; /* 0x0020 */ 179 __u8 reserved24[4]; /* 0x0024 */ 180 __u64 cputm; /* 0x0028 */ 181 __u64 ckc; /* 0x0030 */ 182 __u64 epoch; /* 0x0038 */ 183 __u32 svcc; /* 0x0040 */ 184 #define LCTL_CR0 0x8000 185 #define LCTL_CR6 0x0200 186 #define LCTL_CR9 0x0040 187 #define LCTL_CR10 0x0020 188 #define LCTL_CR11 0x0010 189 #define LCTL_CR14 0x0002 190 __u16 lctl; /* 0x0044 */ 191 __s16 icpua; /* 0x0046 */ 192 #define ICTL_OPEREXC 0x80000000 193 #define ICTL_PINT 0x20000000 194 #define ICTL_LPSW 0x00400000 195 #define ICTL_STCTL 0x00040000 196 #define ICTL_ISKE 0x00004000 197 #define ICTL_SSKE 0x00002000 198 #define ICTL_RRBE 0x00001000 199 #define ICTL_TPROT 0x00000200 200 __u32 ictl; /* 0x0048 */ 201 #define ECA_CEI 0x80000000 202 #define ECA_IB 0x40000000 203 #define ECA_SIGPI 0x10000000 204 #define ECA_MVPGI 0x01000000 205 #define ECA_AIV 0x00200000 206 #define ECA_VX 0x00020000 207 #define ECA_PROTEXCI 0x00002000 208 #define ECA_APIE 0x00000008 209 #define ECA_SII 0x00000001 210 __u32 eca; /* 0x004c */ 211 #define ICPT_INST 0x04 212 #define ICPT_PROGI 0x08 213 #define ICPT_INSTPROGI 0x0C 214 #define ICPT_EXTREQ 0x10 215 #define ICPT_EXTINT 0x14 216 #define ICPT_IOREQ 0x18 217 #define ICPT_WAIT 0x1c 218 #define ICPT_VALIDITY 0x20 219 #define ICPT_STOP 0x28 220 #define ICPT_OPEREXC 0x2C 221 #define ICPT_PARTEXEC 0x38 222 #define ICPT_IOINST 0x40 223 #define ICPT_KSS 0x5c 224 #define ICPT_MCHKREQ 0x60 225 #define ICPT_INT_ENABLE 0x64 226 #define ICPT_PV_INSTR 0x68 227 #define ICPT_PV_NOTIFY 0x6c 228 #define ICPT_PV_PREF 0x70 229 __u8 icptcode; /* 0x0050 */ 230 __u8 icptstatus; /* 0x0051 */ 231 __u16 ihcpu; /* 0x0052 */ 232 __u8 reserved54; /* 0x0054 */ 233 #define IICTL_CODE_NONE 0x00 234 #define IICTL_CODE_MCHK 0x01 235 #define IICTL_CODE_EXT 0x02 236 #define IICTL_CODE_IO 0x03 237 #define IICTL_CODE_RESTART 0x04 238 #define IICTL_CODE_SPECIFICATION 0x10 239 #define IICTL_CODE_OPERAND 0x11 240 __u8 iictl; /* 0x0055 */ 241 __u16 ipa; /* 0x0056 */ 242 __u32 ipb; /* 0x0058 */ 243 __u32 scaoh; /* 0x005c */ 244 #define FPF_BPBC 0x20 245 __u8 fpf; /* 0x0060 */ 246 #define ECB_GS 0x40 247 #define ECB_TE 0x10 248 #define ECB_SRSI 0x04 249 #define ECB_HOSTPROTINT 0x02 250 __u8 ecb; /* 0x0061 */ 251 #define ECB2_CMMA 0x80 252 #define ECB2_IEP 0x20 253 #define ECB2_PFMFI 0x08 254 #define ECB2_ESCA 0x04 255 __u8 ecb2; /* 0x0062 */ 256 #define ECB3_DEA 0x08 257 #define ECB3_AES 0x04 258 #define ECB3_RI 0x01 259 __u8 ecb3; /* 0x0063 */ 260 __u32 scaol; /* 0x0064 */ 261 __u8 sdf; /* 0x0068 */ 262 __u8 epdx; /* 0x0069 */ 263 __u8 reserved6a[2]; /* 0x006a */ 264 __u32 todpr; /* 0x006c */ 265 #define GISA_FORMAT1 0x00000001 266 __u32 gd; /* 0x0070 */ 267 __u8 reserved74[12]; /* 0x0074 */ 268 __u64 mso; /* 0x0080 */ 269 __u64 msl; /* 0x0088 */ 270 psw_t gpsw; /* 0x0090 */ 271 __u64 gg14; /* 0x00a0 */ 272 __u64 gg15; /* 0x00a8 */ 273 __u8 reservedb0[8]; /* 0x00b0 */ 274 #define HPID_KVM 0x4 275 #define HPID_VSIE 0x5 276 __u8 hpid; /* 0x00b8 */ 277 __u8 reservedb9[7]; /* 0x00b9 */ 278 union { 279 struct { 280 __u32 eiparams; /* 0x00c0 */ 281 __u16 extcpuaddr; /* 0x00c4 */ 282 __u16 eic; /* 0x00c6 */ 283 }; 284 __u64 mcic; /* 0x00c0 */ 285 } __packed; 286 __u32 reservedc8; /* 0x00c8 */ 287 union { 288 struct { 289 __u16 pgmilc; /* 0x00cc */ 290 __u16 iprcc; /* 0x00ce */ 291 }; 292 __u32 edc; /* 0x00cc */ 293 } __packed; 294 union { 295 struct { 296 __u32 dxc; /* 0x00d0 */ 297 __u16 mcn; /* 0x00d4 */ 298 __u8 perc; /* 0x00d6 */ 299 __u8 peratmid; /* 0x00d7 */ 300 }; 301 __u64 faddr; /* 0x00d0 */ 302 } __packed; 303 __u64 peraddr; /* 0x00d8 */ 304 __u8 eai; /* 0x00e0 */ 305 __u8 peraid; /* 0x00e1 */ 306 __u8 oai; /* 0x00e2 */ 307 __u8 armid; /* 0x00e3 */ 308 __u8 reservede4[4]; /* 0x00e4 */ 309 union { 310 __u64 tecmc; /* 0x00e8 */ 311 struct { 312 __u16 subchannel_id; /* 0x00e8 */ 313 __u16 subchannel_nr; /* 0x00ea */ 314 __u32 io_int_parm; /* 0x00ec */ 315 __u32 io_int_word; /* 0x00f0 */ 316 }; 317 } __packed; 318 __u8 reservedf4[8]; /* 0x00f4 */ 319 #define CRYCB_FORMAT_MASK 0x00000003 320 #define CRYCB_FORMAT0 0x00000000 321 #define CRYCB_FORMAT1 0x00000001 322 #define CRYCB_FORMAT2 0x00000003 323 __u32 crycbd; /* 0x00fc */ 324 __u64 gcr[16]; /* 0x0100 */ 325 union { 326 __u64 gbea; /* 0x0180 */ 327 __u64 sidad; 328 }; 329 __u8 reserved188[8]; /* 0x0188 */ 330 __u64 sdnxo; /* 0x0190 */ 331 __u8 reserved198[8]; /* 0x0198 */ 332 __u32 fac; /* 0x01a0 */ 333 __u8 reserved1a4[20]; /* 0x01a4 */ 334 __u64 cbrlo; /* 0x01b8 */ 335 __u8 reserved1c0[8]; /* 0x01c0 */ 336 #define ECD_HOSTREGMGMT 0x20000000 337 #define ECD_MEF 0x08000000 338 #define ECD_ETOKENF 0x02000000 339 #define ECD_ECC 0x00200000 340 __u32 ecd; /* 0x01c8 */ 341 __u8 reserved1cc[18]; /* 0x01cc */ 342 __u64 pp; /* 0x01de */ 343 __u8 reserved1e6[2]; /* 0x01e6 */ 344 __u64 itdba; /* 0x01e8 */ 345 __u64 riccbd; /* 0x01f0 */ 346 __u64 gvrd; /* 0x01f8 */ 347 } __packed __aligned(512); 348 349 struct kvm_s390_itdb { 350 __u8 data[256]; 351 }; 352 353 struct sie_page { 354 struct kvm_s390_sie_block sie_block; 355 struct mcck_volatile_info mcck_info; /* 0x0200 */ 356 __u8 reserved218[360]; /* 0x0218 */ 357 __u64 pv_grregs[16]; /* 0x0380 */ 358 __u8 reserved400[512]; /* 0x0400 */ 359 struct kvm_s390_itdb itdb; /* 0x0600 */ 360 __u8 reserved700[2304]; /* 0x0700 */ 361 }; 362 363 struct kvm_vcpu_stat { 364 u64 exit_userspace; 365 u64 exit_null; 366 u64 exit_external_request; 367 u64 exit_io_request; 368 u64 exit_external_interrupt; 369 u64 exit_stop_request; 370 u64 exit_validity; 371 u64 exit_instruction; 372 u64 exit_pei; 373 u64 halt_successful_poll; 374 u64 halt_attempted_poll; 375 u64 halt_poll_invalid; 376 u64 halt_no_poll_steal; 377 u64 halt_wakeup; 378 u64 instruction_lctl; 379 u64 instruction_lctlg; 380 u64 instruction_stctl; 381 u64 instruction_stctg; 382 u64 exit_program_interruption; 383 u64 exit_instr_and_program; 384 u64 exit_operation_exception; 385 u64 deliver_ckc; 386 u64 deliver_cputm; 387 u64 deliver_external_call; 388 u64 deliver_emergency_signal; 389 u64 deliver_service_signal; 390 u64 deliver_virtio; 391 u64 deliver_stop_signal; 392 u64 deliver_prefix_signal; 393 u64 deliver_restart_signal; 394 u64 deliver_program; 395 u64 deliver_io; 396 u64 deliver_machine_check; 397 u64 exit_wait_state; 398 u64 inject_ckc; 399 u64 inject_cputm; 400 u64 inject_external_call; 401 u64 inject_emergency_signal; 402 u64 inject_mchk; 403 u64 inject_pfault_init; 404 u64 inject_program; 405 u64 inject_restart; 406 u64 inject_set_prefix; 407 u64 inject_stop_signal; 408 u64 instruction_epsw; 409 u64 instruction_gs; 410 u64 instruction_io_other; 411 u64 instruction_lpsw; 412 u64 instruction_lpswe; 413 u64 instruction_pfmf; 414 u64 instruction_ptff; 415 u64 instruction_sck; 416 u64 instruction_sckpf; 417 u64 instruction_stidp; 418 u64 instruction_spx; 419 u64 instruction_stpx; 420 u64 instruction_stap; 421 u64 instruction_iske; 422 u64 instruction_ri; 423 u64 instruction_rrbe; 424 u64 instruction_sske; 425 u64 instruction_ipte_interlock; 426 u64 instruction_stsi; 427 u64 instruction_stfl; 428 u64 instruction_tb; 429 u64 instruction_tpi; 430 u64 instruction_tprot; 431 u64 instruction_tsch; 432 u64 instruction_sie; 433 u64 instruction_essa; 434 u64 instruction_sthyi; 435 u64 instruction_sigp_sense; 436 u64 instruction_sigp_sense_running; 437 u64 instruction_sigp_external_call; 438 u64 instruction_sigp_emergency; 439 u64 instruction_sigp_cond_emergency; 440 u64 instruction_sigp_start; 441 u64 instruction_sigp_stop; 442 u64 instruction_sigp_stop_store_status; 443 u64 instruction_sigp_store_status; 444 u64 instruction_sigp_store_adtl_status; 445 u64 instruction_sigp_arch; 446 u64 instruction_sigp_prefix; 447 u64 instruction_sigp_restart; 448 u64 instruction_sigp_init_cpu_reset; 449 u64 instruction_sigp_cpu_reset; 450 u64 instruction_sigp_unknown; 451 u64 diagnose_10; 452 u64 diagnose_44; 453 u64 diagnose_9c; 454 u64 diagnose_9c_ignored; 455 u64 diagnose_258; 456 u64 diagnose_308; 457 u64 diagnose_500; 458 u64 diagnose_other; 459 }; 460 461 #define PGM_OPERATION 0x01 462 #define PGM_PRIVILEGED_OP 0x02 463 #define PGM_EXECUTE 0x03 464 #define PGM_PROTECTION 0x04 465 #define PGM_ADDRESSING 0x05 466 #define PGM_SPECIFICATION 0x06 467 #define PGM_DATA 0x07 468 #define PGM_FIXED_POINT_OVERFLOW 0x08 469 #define PGM_FIXED_POINT_DIVIDE 0x09 470 #define PGM_DECIMAL_OVERFLOW 0x0a 471 #define PGM_DECIMAL_DIVIDE 0x0b 472 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 473 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 474 #define PGM_HFP_SIGNIFICANCE 0x0e 475 #define PGM_HFP_DIVIDE 0x0f 476 #define PGM_SEGMENT_TRANSLATION 0x10 477 #define PGM_PAGE_TRANSLATION 0x11 478 #define PGM_TRANSLATION_SPEC 0x12 479 #define PGM_SPECIAL_OPERATION 0x13 480 #define PGM_OPERAND 0x15 481 #define PGM_TRACE_TABEL 0x16 482 #define PGM_VECTOR_PROCESSING 0x1b 483 #define PGM_SPACE_SWITCH 0x1c 484 #define PGM_HFP_SQUARE_ROOT 0x1d 485 #define PGM_PC_TRANSLATION_SPEC 0x1f 486 #define PGM_AFX_TRANSLATION 0x20 487 #define PGM_ASX_TRANSLATION 0x21 488 #define PGM_LX_TRANSLATION 0x22 489 #define PGM_EX_TRANSLATION 0x23 490 #define PGM_PRIMARY_AUTHORITY 0x24 491 #define PGM_SECONDARY_AUTHORITY 0x25 492 #define PGM_LFX_TRANSLATION 0x26 493 #define PGM_LSX_TRANSLATION 0x27 494 #define PGM_ALET_SPECIFICATION 0x28 495 #define PGM_ALEN_TRANSLATION 0x29 496 #define PGM_ALE_SEQUENCE 0x2a 497 #define PGM_ASTE_VALIDITY 0x2b 498 #define PGM_ASTE_SEQUENCE 0x2c 499 #define PGM_EXTENDED_AUTHORITY 0x2d 500 #define PGM_LSTE_SEQUENCE 0x2e 501 #define PGM_ASTE_INSTANCE 0x2f 502 #define PGM_STACK_FULL 0x30 503 #define PGM_STACK_EMPTY 0x31 504 #define PGM_STACK_SPECIFICATION 0x32 505 #define PGM_STACK_TYPE 0x33 506 #define PGM_STACK_OPERATION 0x34 507 #define PGM_ASCE_TYPE 0x38 508 #define PGM_REGION_FIRST_TRANS 0x39 509 #define PGM_REGION_SECOND_TRANS 0x3a 510 #define PGM_REGION_THIRD_TRANS 0x3b 511 #define PGM_MONITOR 0x40 512 #define PGM_PER 0x80 513 #define PGM_CRYPTO_OPERATION 0x119 514 515 /* irq types in ascend order of priorities */ 516 enum irq_types { 517 IRQ_PEND_SET_PREFIX = 0, 518 IRQ_PEND_RESTART, 519 IRQ_PEND_SIGP_STOP, 520 IRQ_PEND_IO_ISC_7, 521 IRQ_PEND_IO_ISC_6, 522 IRQ_PEND_IO_ISC_5, 523 IRQ_PEND_IO_ISC_4, 524 IRQ_PEND_IO_ISC_3, 525 IRQ_PEND_IO_ISC_2, 526 IRQ_PEND_IO_ISC_1, 527 IRQ_PEND_IO_ISC_0, 528 IRQ_PEND_VIRTIO, 529 IRQ_PEND_PFAULT_DONE, 530 IRQ_PEND_PFAULT_INIT, 531 IRQ_PEND_EXT_HOST, 532 IRQ_PEND_EXT_SERVICE, 533 IRQ_PEND_EXT_SERVICE_EV, 534 IRQ_PEND_EXT_TIMING, 535 IRQ_PEND_EXT_CPU_TIMER, 536 IRQ_PEND_EXT_CLOCK_COMP, 537 IRQ_PEND_EXT_EXTERNAL, 538 IRQ_PEND_EXT_EMERGENCY, 539 IRQ_PEND_EXT_MALFUNC, 540 IRQ_PEND_EXT_IRQ_KEY, 541 IRQ_PEND_MCHK_REP, 542 IRQ_PEND_PROG, 543 IRQ_PEND_SVC, 544 IRQ_PEND_MCHK_EX, 545 IRQ_PEND_COUNT 546 }; 547 548 /* We have 2M for virtio device descriptor pages. Smallest amount of 549 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 550 */ 551 #define KVM_S390_MAX_VIRTIO_IRQS 87381 552 553 /* 554 * Repressible (non-floating) machine check interrupts 555 * subclass bits in MCIC 556 */ 557 #define MCHK_EXTD_BIT 58 558 #define MCHK_DEGR_BIT 56 559 #define MCHK_WARN_BIT 55 560 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 561 (1UL << MCHK_EXTD_BIT) | \ 562 (1UL << MCHK_WARN_BIT)) 563 564 /* Exigent machine check interrupts subclass bits in MCIC */ 565 #define MCHK_SD_BIT 63 566 #define MCHK_PD_BIT 62 567 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 568 569 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 570 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 571 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 572 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 573 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 574 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 575 (1UL << IRQ_PEND_EXT_TIMING) | \ 576 (1UL << IRQ_PEND_EXT_HOST) | \ 577 (1UL << IRQ_PEND_EXT_SERVICE) | \ 578 (1UL << IRQ_PEND_EXT_SERVICE_EV) | \ 579 (1UL << IRQ_PEND_VIRTIO) | \ 580 (1UL << IRQ_PEND_PFAULT_INIT) | \ 581 (1UL << IRQ_PEND_PFAULT_DONE)) 582 583 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 584 (1UL << IRQ_PEND_IO_ISC_1) | \ 585 (1UL << IRQ_PEND_IO_ISC_2) | \ 586 (1UL << IRQ_PEND_IO_ISC_3) | \ 587 (1UL << IRQ_PEND_IO_ISC_4) | \ 588 (1UL << IRQ_PEND_IO_ISC_5) | \ 589 (1UL << IRQ_PEND_IO_ISC_6) | \ 590 (1UL << IRQ_PEND_IO_ISC_7)) 591 592 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 593 (1UL << IRQ_PEND_MCHK_EX)) 594 595 #define IRQ_PEND_EXT_II_MASK ((1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 596 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 597 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 598 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 599 (1UL << IRQ_PEND_EXT_SERVICE) | \ 600 (1UL << IRQ_PEND_EXT_SERVICE_EV)) 601 602 struct kvm_s390_interrupt_info { 603 struct list_head list; 604 u64 type; 605 union { 606 struct kvm_s390_io_info io; 607 struct kvm_s390_ext_info ext; 608 struct kvm_s390_pgm_info pgm; 609 struct kvm_s390_emerg_info emerg; 610 struct kvm_s390_extcall_info extcall; 611 struct kvm_s390_prefix_info prefix; 612 struct kvm_s390_stop_info stop; 613 struct kvm_s390_mchk_info mchk; 614 }; 615 }; 616 617 struct kvm_s390_irq_payload { 618 struct kvm_s390_io_info io; 619 struct kvm_s390_ext_info ext; 620 struct kvm_s390_pgm_info pgm; 621 struct kvm_s390_emerg_info emerg; 622 struct kvm_s390_extcall_info extcall; 623 struct kvm_s390_prefix_info prefix; 624 struct kvm_s390_stop_info stop; 625 struct kvm_s390_mchk_info mchk; 626 }; 627 628 struct kvm_s390_local_interrupt { 629 spinlock_t lock; 630 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 631 struct kvm_s390_irq_payload irq; 632 unsigned long pending_irqs; 633 }; 634 635 #define FIRQ_LIST_IO_ISC_0 0 636 #define FIRQ_LIST_IO_ISC_1 1 637 #define FIRQ_LIST_IO_ISC_2 2 638 #define FIRQ_LIST_IO_ISC_3 3 639 #define FIRQ_LIST_IO_ISC_4 4 640 #define FIRQ_LIST_IO_ISC_5 5 641 #define FIRQ_LIST_IO_ISC_6 6 642 #define FIRQ_LIST_IO_ISC_7 7 643 #define FIRQ_LIST_PFAULT 8 644 #define FIRQ_LIST_VIRTIO 9 645 #define FIRQ_LIST_COUNT 10 646 #define FIRQ_CNTR_IO 0 647 #define FIRQ_CNTR_SERVICE 1 648 #define FIRQ_CNTR_VIRTIO 2 649 #define FIRQ_CNTR_PFAULT 3 650 #define FIRQ_MAX_COUNT 4 651 652 /* mask the AIS mode for a given ISC */ 653 #define AIS_MODE_MASK(isc) (0x80 >> isc) 654 655 #define KVM_S390_AIS_MODE_ALL 0 656 #define KVM_S390_AIS_MODE_SINGLE 1 657 658 struct kvm_s390_float_interrupt { 659 unsigned long pending_irqs; 660 unsigned long masked_irqs; 661 spinlock_t lock; 662 struct list_head lists[FIRQ_LIST_COUNT]; 663 int counters[FIRQ_MAX_COUNT]; 664 struct kvm_s390_mchk_info mchk; 665 struct kvm_s390_ext_info srv_signal; 666 int next_rr_cpu; 667 struct mutex ais_lock; 668 u8 simm; 669 u8 nimm; 670 }; 671 672 struct kvm_hw_wp_info_arch { 673 unsigned long addr; 674 unsigned long phys_addr; 675 int len; 676 char *old_data; 677 }; 678 679 struct kvm_hw_bp_info_arch { 680 unsigned long addr; 681 int len; 682 }; 683 684 /* 685 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 686 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 687 * arch/s390/include/uapi/asm/kvm.h 688 */ 689 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 690 691 #define guestdbg_enabled(vcpu) \ 692 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 693 #define guestdbg_sstep_enabled(vcpu) \ 694 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 695 #define guestdbg_hw_bp_enabled(vcpu) \ 696 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 697 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 698 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 699 700 struct kvm_guestdbg_info_arch { 701 unsigned long cr0; 702 unsigned long cr9; 703 unsigned long cr10; 704 unsigned long cr11; 705 struct kvm_hw_bp_info_arch *hw_bp_info; 706 struct kvm_hw_wp_info_arch *hw_wp_info; 707 int nr_hw_bp; 708 int nr_hw_wp; 709 unsigned long last_bp; 710 }; 711 712 struct kvm_s390_pv_vcpu { 713 u64 handle; 714 unsigned long stor_base; 715 }; 716 717 struct kvm_vcpu_arch { 718 struct kvm_s390_sie_block *sie_block; 719 /* if vsie is active, currently executed shadow sie control block */ 720 struct kvm_s390_sie_block *vsie_block; 721 unsigned int host_acrs[NUM_ACRS]; 722 struct gs_cb *host_gscb; 723 struct fpu host_fpregs; 724 struct kvm_s390_local_interrupt local_int; 725 struct hrtimer ckc_timer; 726 struct kvm_s390_pgm_info pgm; 727 struct gmap *gmap; 728 /* backup location for the currently enabled gmap when scheduled out */ 729 struct gmap *enabled_gmap; 730 struct kvm_guestdbg_info_arch guestdbg; 731 unsigned long pfault_token; 732 unsigned long pfault_select; 733 unsigned long pfault_compare; 734 bool cputm_enabled; 735 /* 736 * The seqcount protects updates to cputm_start and sie_block.cputm, 737 * this way we can have non-blocking reads with consistent values. 738 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 739 * values and to start/stop/enable/disable cpu timer accounting. 740 */ 741 seqcount_t cputm_seqcount; 742 __u64 cputm_start; 743 bool gs_enabled; 744 bool skey_enabled; 745 struct kvm_s390_pv_vcpu pv; 746 }; 747 748 struct kvm_vm_stat { 749 u64 inject_io; 750 u64 inject_float_mchk; 751 u64 inject_pfault_done; 752 u64 inject_service_signal; 753 u64 inject_virtio; 754 u64 remote_tlb_flush; 755 }; 756 757 struct kvm_arch_memory_slot { 758 }; 759 760 struct s390_map_info { 761 struct list_head list; 762 __u64 guest_addr; 763 __u64 addr; 764 struct page *page; 765 }; 766 767 struct s390_io_adapter { 768 unsigned int id; 769 int isc; 770 bool maskable; 771 bool masked; 772 bool swap; 773 bool suppressible; 774 }; 775 776 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 777 #define MAX_S390_ADAPTER_MAPS 256 778 779 /* maximum size of facilities and facility mask is 2k bytes */ 780 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 781 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 782 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 783 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 784 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 785 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 786 787 struct kvm_s390_cpu_model { 788 /* facility mask supported by kvm & hosting machine */ 789 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 790 struct kvm_s390_vm_cpu_subfunc subfuncs; 791 /* facility list requested by guest (in dma page) */ 792 __u64 *fac_list; 793 u64 cpuid; 794 unsigned short ibc; 795 }; 796 797 struct kvm_s390_module_hook { 798 int (*hook)(struct kvm_vcpu *vcpu); 799 struct module *owner; 800 }; 801 802 struct kvm_s390_crypto { 803 struct kvm_s390_crypto_cb *crycb; 804 struct kvm_s390_module_hook *pqap_hook; 805 __u32 crycbd; 806 __u8 aes_kw; 807 __u8 dea_kw; 808 __u8 apie; 809 }; 810 811 #define APCB0_MASK_SIZE 1 812 struct kvm_s390_apcb0 { 813 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */ 814 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */ 815 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */ 816 __u64 reserved18; /* 0x0018 */ 817 }; 818 819 #define APCB1_MASK_SIZE 4 820 struct kvm_s390_apcb1 { 821 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */ 822 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */ 823 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */ 824 __u64 reserved60[4]; /* 0x0060 */ 825 }; 826 827 struct kvm_s390_crypto_cb { 828 struct kvm_s390_apcb0 apcb0; /* 0x0000 */ 829 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */ 830 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 831 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 832 struct kvm_s390_apcb1 apcb1; /* 0x0080 */ 833 }; 834 835 struct kvm_s390_gisa { 836 union { 837 struct { /* common to all formats */ 838 u32 next_alert; 839 u8 ipm; 840 u8 reserved01[2]; 841 u8 iam; 842 }; 843 struct { /* format 0 */ 844 u32 next_alert; 845 u8 ipm; 846 u8 reserved01; 847 u8 : 6; 848 u8 g : 1; 849 u8 c : 1; 850 u8 iam; 851 u8 reserved02[4]; 852 u32 airq_count; 853 } g0; 854 struct { /* format 1 */ 855 u32 next_alert; 856 u8 ipm; 857 u8 simm; 858 u8 nimm; 859 u8 iam; 860 u8 aism[8]; 861 u8 : 6; 862 u8 g : 1; 863 u8 c : 1; 864 u8 reserved03[11]; 865 u32 airq_count; 866 } g1; 867 struct { 868 u64 word[4]; 869 } u64; 870 }; 871 }; 872 873 struct kvm_s390_gib { 874 u32 alert_list_origin; 875 u32 reserved01; 876 u8:5; 877 u8 nisc:3; 878 u8 reserved03[3]; 879 u32 reserved04[5]; 880 }; 881 882 /* 883 * sie_page2 has to be allocated as DMA because fac_list, crycb and 884 * gisa need 31bit addresses in the sie control block. 885 */ 886 struct sie_page2 { 887 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 888 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 889 struct kvm_s390_gisa gisa; /* 0x0900 */ 890 struct kvm *kvm; /* 0x0920 */ 891 u8 reserved928[0x1000 - 0x928]; /* 0x0928 */ 892 }; 893 894 struct kvm_s390_vsie { 895 struct mutex mutex; 896 struct radix_tree_root addr_to_page; 897 int page_count; 898 int next; 899 struct page *pages[KVM_MAX_VCPUS]; 900 }; 901 902 struct kvm_s390_gisa_iam { 903 u8 mask; 904 spinlock_t ref_lock; 905 u32 ref_count[MAX_ISC + 1]; 906 }; 907 908 struct kvm_s390_gisa_interrupt { 909 struct kvm_s390_gisa *origin; 910 struct kvm_s390_gisa_iam alert; 911 struct hrtimer timer; 912 u64 expires; 913 DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS); 914 }; 915 916 struct kvm_s390_pv { 917 u64 handle; 918 u64 guest_len; 919 unsigned long stor_base; 920 void *stor_var; 921 }; 922 923 struct kvm_arch{ 924 void *sca; 925 int use_esca; 926 rwlock_t sca_lock; 927 debug_info_t *dbf; 928 struct kvm_s390_float_interrupt float_int; 929 struct kvm_device *flic; 930 struct gmap *gmap; 931 unsigned long mem_limit; 932 int css_support; 933 int use_irqchip; 934 int use_cmma; 935 int use_pfmfi; 936 int use_skf; 937 int user_cpu_state_ctrl; 938 int user_sigp; 939 int user_stsi; 940 int user_instr0; 941 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 942 wait_queue_head_t ipte_wq; 943 int ipte_lock_count; 944 struct mutex ipte_mutex; 945 spinlock_t start_stop_lock; 946 struct sie_page2 *sie_page2; 947 struct kvm_s390_cpu_model model; 948 struct kvm_s390_crypto crypto; 949 struct kvm_s390_vsie vsie; 950 u8 epdx; 951 u64 epoch; 952 int migration_mode; 953 atomic64_t cmma_dirty_pages; 954 /* subset of available cpu features enabled by user space */ 955 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 956 DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS); 957 struct kvm_s390_gisa_interrupt gisa_int; 958 struct kvm_s390_pv pv; 959 }; 960 961 #define KVM_HVA_ERR_BAD (-1UL) 962 #define KVM_HVA_ERR_RO_BAD (-2UL) 963 964 static inline bool kvm_is_error_hva(unsigned long addr) 965 { 966 return IS_ERR_VALUE(addr); 967 } 968 969 #define ASYNC_PF_PER_VCPU 64 970 struct kvm_arch_async_pf { 971 unsigned long pfault_token; 972 }; 973 974 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 975 976 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 977 struct kvm_async_pf *work); 978 979 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 980 struct kvm_async_pf *work); 981 982 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 983 struct kvm_async_pf *work); 984 985 void kvm_arch_crypto_clear_masks(struct kvm *kvm); 986 void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm, 987 unsigned long *aqm, unsigned long *adm); 988 989 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 990 extern char sie_exit; 991 992 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc); 993 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc); 994 995 static inline void kvm_arch_hardware_disable(void) {} 996 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 997 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 998 static inline void kvm_arch_free_memslot(struct kvm *kvm, 999 struct kvm_memory_slot *slot) {} 1000 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 1001 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 1002 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 1003 struct kvm_memory_slot *slot) {} 1004 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 1005 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 1006 1007 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 1008 1009 #endif 1010