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 32 /* 33 * These seem to be used for allocating ->chip in the routing table, which we 34 * don't use. 1 is as small as we can get to reduce the needed memory. If we 35 * need to look at ->chip later on, we'll need to revisit this. 36 */ 37 #define KVM_NR_IRQCHIPS 1 38 #define KVM_IRQCHIP_NUM_PINS 1 39 #define KVM_HALT_POLL_NS_DEFAULT 50000 40 41 /* s390-specific vcpu->requests bit members */ 42 #define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0) 43 #define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1) 44 #define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2) 45 #define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3) 46 #define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4) 47 #define KVM_REQ_VSIE_RESTART KVM_ARCH_REQ(5) 48 49 #define SIGP_CTRL_C 0x80 50 #define SIGP_CTRL_SCN_MASK 0x3f 51 52 union bsca_sigp_ctrl { 53 __u8 value; 54 struct { 55 __u8 c : 1; 56 __u8 r : 1; 57 __u8 scn : 6; 58 }; 59 }; 60 61 union esca_sigp_ctrl { 62 __u16 value; 63 struct { 64 __u8 c : 1; 65 __u8 reserved: 7; 66 __u8 scn; 67 }; 68 }; 69 70 struct esca_entry { 71 union esca_sigp_ctrl sigp_ctrl; 72 __u16 reserved1[3]; 73 __u64 sda; 74 __u64 reserved2[6]; 75 }; 76 77 struct bsca_entry { 78 __u8 reserved0; 79 union bsca_sigp_ctrl sigp_ctrl; 80 __u16 reserved[3]; 81 __u64 sda; 82 __u64 reserved2[2]; 83 }; 84 85 union ipte_control { 86 unsigned long val; 87 struct { 88 unsigned long k : 1; 89 unsigned long kh : 31; 90 unsigned long kg : 32; 91 }; 92 }; 93 94 struct bsca_block { 95 union ipte_control ipte_control; 96 __u64 reserved[5]; 97 __u64 mcn; 98 __u64 reserved2; 99 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS]; 100 }; 101 102 struct esca_block { 103 union ipte_control ipte_control; 104 __u64 reserved1[7]; 105 __u64 mcn[4]; 106 __u64 reserved2[20]; 107 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS]; 108 }; 109 110 /* 111 * This struct is used to store some machine check info from lowcore 112 * for machine checks that happen while the guest is running. 113 * This info in host's lowcore might be overwritten by a second machine 114 * check from host when host is in the machine check's high-level handling. 115 * The size is 24 bytes. 116 */ 117 struct mcck_volatile_info { 118 __u64 mcic; 119 __u64 failing_storage_address; 120 __u32 ext_damage_code; 121 __u32 reserved; 122 }; 123 124 #define CR0_INITIAL_MASK (CR0_UNUSED_56 | CR0_INTERRUPT_KEY_SUBMASK | \ 125 CR0_MEASUREMENT_ALERT_SUBMASK) 126 #define CR14_INITIAL_MASK (CR14_UNUSED_32 | CR14_UNUSED_33 | \ 127 CR14_EXTERNAL_DAMAGE_SUBMASK) 128 129 #define SIDAD_SIZE_MASK 0xff 130 #define sida_origin(sie_block) \ 131 ((sie_block)->sidad & PAGE_MASK) 132 #define sida_size(sie_block) \ 133 ((((sie_block)->sidad & SIDAD_SIZE_MASK) + 1) * PAGE_SIZE) 134 135 #define CPUSTAT_STOPPED 0x80000000 136 #define CPUSTAT_WAIT 0x10000000 137 #define CPUSTAT_ECALL_PEND 0x08000000 138 #define CPUSTAT_STOP_INT 0x04000000 139 #define CPUSTAT_IO_INT 0x02000000 140 #define CPUSTAT_EXT_INT 0x01000000 141 #define CPUSTAT_RUNNING 0x00800000 142 #define CPUSTAT_RETAINED 0x00400000 143 #define CPUSTAT_TIMING_SUB 0x00020000 144 #define CPUSTAT_SIE_SUB 0x00010000 145 #define CPUSTAT_RRF 0x00008000 146 #define CPUSTAT_SLSV 0x00004000 147 #define CPUSTAT_SLSR 0x00002000 148 #define CPUSTAT_ZARCH 0x00000800 149 #define CPUSTAT_MCDS 0x00000100 150 #define CPUSTAT_KSS 0x00000200 151 #define CPUSTAT_SM 0x00000080 152 #define CPUSTAT_IBS 0x00000040 153 #define CPUSTAT_GED2 0x00000010 154 #define CPUSTAT_G 0x00000008 155 #define CPUSTAT_GED 0x00000004 156 #define CPUSTAT_J 0x00000002 157 #define CPUSTAT_P 0x00000001 158 159 struct kvm_s390_sie_block { 160 atomic_t cpuflags; /* 0x0000 */ 161 __u32 : 1; /* 0x0004 */ 162 __u32 prefix : 18; 163 __u32 : 1; 164 __u32 ibc : 12; 165 __u8 reserved08[4]; /* 0x0008 */ 166 #define PROG_IN_SIE (1<<0) 167 __u32 prog0c; /* 0x000c */ 168 union { 169 __u8 reserved10[16]; /* 0x0010 */ 170 struct { 171 __u64 pv_handle_cpu; 172 __u64 pv_handle_config; 173 }; 174 }; 175 #define PROG_BLOCK_SIE (1<<0) 176 #define PROG_REQUEST (1<<1) 177 atomic_t prog20; /* 0x0020 */ 178 __u8 reserved24[4]; /* 0x0024 */ 179 __u64 cputm; /* 0x0028 */ 180 __u64 ckc; /* 0x0030 */ 181 __u64 epoch; /* 0x0038 */ 182 __u32 svcc; /* 0x0040 */ 183 #define LCTL_CR0 0x8000 184 #define LCTL_CR6 0x0200 185 #define LCTL_CR9 0x0040 186 #define LCTL_CR10 0x0020 187 #define LCTL_CR11 0x0010 188 #define LCTL_CR14 0x0002 189 __u16 lctl; /* 0x0044 */ 190 __s16 icpua; /* 0x0046 */ 191 #define ICTL_OPEREXC 0x80000000 192 #define ICTL_PINT 0x20000000 193 #define ICTL_LPSW 0x00400000 194 #define ICTL_STCTL 0x00040000 195 #define ICTL_ISKE 0x00004000 196 #define ICTL_SSKE 0x00002000 197 #define ICTL_RRBE 0x00001000 198 #define ICTL_TPROT 0x00000200 199 __u32 ictl; /* 0x0048 */ 200 #define ECA_CEI 0x80000000 201 #define ECA_IB 0x40000000 202 #define ECA_SIGPI 0x10000000 203 #define ECA_MVPGI 0x01000000 204 #define ECA_AIV 0x00200000 205 #define ECA_VX 0x00020000 206 #define ECA_PROTEXCI 0x00002000 207 #define ECA_APIE 0x00000008 208 #define ECA_SII 0x00000001 209 __u32 eca; /* 0x004c */ 210 #define ICPT_INST 0x04 211 #define ICPT_PROGI 0x08 212 #define ICPT_INSTPROGI 0x0C 213 #define ICPT_EXTREQ 0x10 214 #define ICPT_EXTINT 0x14 215 #define ICPT_IOREQ 0x18 216 #define ICPT_WAIT 0x1c 217 #define ICPT_VALIDITY 0x20 218 #define ICPT_STOP 0x28 219 #define ICPT_OPEREXC 0x2C 220 #define ICPT_PARTEXEC 0x38 221 #define ICPT_IOINST 0x40 222 #define ICPT_KSS 0x5c 223 #define ICPT_MCHKREQ 0x60 224 #define ICPT_INT_ENABLE 0x64 225 #define ICPT_PV_INSTR 0x68 226 #define ICPT_PV_NOTIFY 0x6c 227 #define ICPT_PV_PREF 0x70 228 __u8 icptcode; /* 0x0050 */ 229 __u8 icptstatus; /* 0x0051 */ 230 __u16 ihcpu; /* 0x0052 */ 231 __u8 reserved54; /* 0x0054 */ 232 #define IICTL_CODE_NONE 0x00 233 #define IICTL_CODE_MCHK 0x01 234 #define IICTL_CODE_EXT 0x02 235 #define IICTL_CODE_IO 0x03 236 #define IICTL_CODE_RESTART 0x04 237 #define IICTL_CODE_SPECIFICATION 0x10 238 #define IICTL_CODE_OPERAND 0x11 239 __u8 iictl; /* 0x0055 */ 240 __u16 ipa; /* 0x0056 */ 241 __u32 ipb; /* 0x0058 */ 242 __u32 scaoh; /* 0x005c */ 243 #define FPF_BPBC 0x20 244 __u8 fpf; /* 0x0060 */ 245 #define ECB_GS 0x40 246 #define ECB_TE 0x10 247 #define ECB_SPECI 0x08 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 cpnc; /* 0x006a */ 264 __u8 reserved6b; /* 0x006b */ 265 __u32 todpr; /* 0x006c */ 266 #define GISA_FORMAT1 0x00000001 267 __u32 gd; /* 0x0070 */ 268 __u8 reserved74[12]; /* 0x0074 */ 269 __u64 mso; /* 0x0080 */ 270 __u64 msl; /* 0x0088 */ 271 psw_t gpsw; /* 0x0090 */ 272 __u64 gg14; /* 0x00a0 */ 273 __u64 gg15; /* 0x00a8 */ 274 __u8 reservedb0[8]; /* 0x00b0 */ 275 #define HPID_KVM 0x4 276 #define HPID_VSIE 0x5 277 __u8 hpid; /* 0x00b8 */ 278 __u8 reservedb9[7]; /* 0x00b9 */ 279 union { 280 struct { 281 __u32 eiparams; /* 0x00c0 */ 282 __u16 extcpuaddr; /* 0x00c4 */ 283 __u16 eic; /* 0x00c6 */ 284 }; 285 __u64 mcic; /* 0x00c0 */ 286 } __packed; 287 __u32 reservedc8; /* 0x00c8 */ 288 union { 289 struct { 290 __u16 pgmilc; /* 0x00cc */ 291 __u16 iprcc; /* 0x00ce */ 292 }; 293 __u32 edc; /* 0x00cc */ 294 } __packed; 295 union { 296 struct { 297 __u32 dxc; /* 0x00d0 */ 298 __u16 mcn; /* 0x00d4 */ 299 __u8 perc; /* 0x00d6 */ 300 __u8 peratmid; /* 0x00d7 */ 301 }; 302 __u64 faddr; /* 0x00d0 */ 303 } __packed; 304 __u64 peraddr; /* 0x00d8 */ 305 __u8 eai; /* 0x00e0 */ 306 __u8 peraid; /* 0x00e1 */ 307 __u8 oai; /* 0x00e2 */ 308 __u8 armid; /* 0x00e3 */ 309 __u8 reservede4[4]; /* 0x00e4 */ 310 union { 311 __u64 tecmc; /* 0x00e8 */ 312 struct { 313 __u16 subchannel_id; /* 0x00e8 */ 314 __u16 subchannel_nr; /* 0x00ea */ 315 __u32 io_int_parm; /* 0x00ec */ 316 __u32 io_int_word; /* 0x00f0 */ 317 }; 318 } __packed; 319 __u8 reservedf4[8]; /* 0x00f4 */ 320 #define CRYCB_FORMAT_MASK 0x00000003 321 #define CRYCB_FORMAT0 0x00000000 322 #define CRYCB_FORMAT1 0x00000001 323 #define CRYCB_FORMAT2 0x00000003 324 __u32 crycbd; /* 0x00fc */ 325 __u64 gcr[16]; /* 0x0100 */ 326 union { 327 __u64 gbea; /* 0x0180 */ 328 __u64 sidad; 329 }; 330 __u8 reserved188[8]; /* 0x0188 */ 331 __u64 sdnxo; /* 0x0190 */ 332 __u8 reserved198[8]; /* 0x0198 */ 333 __u32 fac; /* 0x01a0 */ 334 __u8 reserved1a4[20]; /* 0x01a4 */ 335 __u64 cbrlo; /* 0x01b8 */ 336 __u8 reserved1c0[8]; /* 0x01c0 */ 337 #define ECD_HOSTREGMGMT 0x20000000 338 #define ECD_MEF 0x08000000 339 #define ECD_ETOKENF 0x02000000 340 #define ECD_ECC 0x00200000 341 __u32 ecd; /* 0x01c8 */ 342 __u8 reserved1cc[18]; /* 0x01cc */ 343 __u64 pp; /* 0x01de */ 344 __u8 reserved1e6[2]; /* 0x01e6 */ 345 __u64 itdba; /* 0x01e8 */ 346 __u64 riccbd; /* 0x01f0 */ 347 __u64 gvrd; /* 0x01f8 */ 348 } __packed __aligned(512); 349 350 struct kvm_s390_itdb { 351 __u8 data[256]; 352 }; 353 354 struct sie_page { 355 struct kvm_s390_sie_block sie_block; 356 struct mcck_volatile_info mcck_info; /* 0x0200 */ 357 __u8 reserved218[360]; /* 0x0218 */ 358 __u64 pv_grregs[16]; /* 0x0380 */ 359 __u8 reserved400[512]; /* 0x0400 */ 360 struct kvm_s390_itdb itdb; /* 0x0600 */ 361 __u8 reserved700[2304]; /* 0x0700 */ 362 }; 363 364 struct kvm_vcpu_stat { 365 u64 exit_userspace; 366 u64 exit_null; 367 u64 exit_external_request; 368 u64 exit_io_request; 369 u64 exit_external_interrupt; 370 u64 exit_stop_request; 371 u64 exit_validity; 372 u64 exit_instruction; 373 u64 exit_pei; 374 u64 halt_successful_poll; 375 u64 halt_attempted_poll; 376 u64 halt_poll_invalid; 377 u64 halt_no_poll_steal; 378 u64 halt_wakeup; 379 u64 halt_poll_success_ns; 380 u64 halt_poll_fail_ns; 381 u64 instruction_lctl; 382 u64 instruction_lctlg; 383 u64 instruction_stctl; 384 u64 instruction_stctg; 385 u64 exit_program_interruption; 386 u64 exit_instr_and_program; 387 u64 exit_operation_exception; 388 u64 deliver_ckc; 389 u64 deliver_cputm; 390 u64 deliver_external_call; 391 u64 deliver_emergency_signal; 392 u64 deliver_service_signal; 393 u64 deliver_virtio; 394 u64 deliver_stop_signal; 395 u64 deliver_prefix_signal; 396 u64 deliver_restart_signal; 397 u64 deliver_program; 398 u64 deliver_io; 399 u64 deliver_machine_check; 400 u64 exit_wait_state; 401 u64 inject_ckc; 402 u64 inject_cputm; 403 u64 inject_external_call; 404 u64 inject_emergency_signal; 405 u64 inject_mchk; 406 u64 inject_pfault_init; 407 u64 inject_program; 408 u64 inject_restart; 409 u64 inject_set_prefix; 410 u64 inject_stop_signal; 411 u64 instruction_epsw; 412 u64 instruction_gs; 413 u64 instruction_io_other; 414 u64 instruction_lpsw; 415 u64 instruction_lpswe; 416 u64 instruction_pfmf; 417 u64 instruction_ptff; 418 u64 instruction_sck; 419 u64 instruction_sckpf; 420 u64 instruction_stidp; 421 u64 instruction_spx; 422 u64 instruction_stpx; 423 u64 instruction_stap; 424 u64 instruction_iske; 425 u64 instruction_ri; 426 u64 instruction_rrbe; 427 u64 instruction_sske; 428 u64 instruction_ipte_interlock; 429 u64 instruction_stsi; 430 u64 instruction_stfl; 431 u64 instruction_tb; 432 u64 instruction_tpi; 433 u64 instruction_tprot; 434 u64 instruction_tsch; 435 u64 instruction_sie; 436 u64 instruction_essa; 437 u64 instruction_sthyi; 438 u64 instruction_sigp_sense; 439 u64 instruction_sigp_sense_running; 440 u64 instruction_sigp_external_call; 441 u64 instruction_sigp_emergency; 442 u64 instruction_sigp_cond_emergency; 443 u64 instruction_sigp_start; 444 u64 instruction_sigp_stop; 445 u64 instruction_sigp_stop_store_status; 446 u64 instruction_sigp_store_status; 447 u64 instruction_sigp_store_adtl_status; 448 u64 instruction_sigp_arch; 449 u64 instruction_sigp_prefix; 450 u64 instruction_sigp_restart; 451 u64 instruction_sigp_init_cpu_reset; 452 u64 instruction_sigp_cpu_reset; 453 u64 instruction_sigp_unknown; 454 u64 diagnose_10; 455 u64 diagnose_44; 456 u64 diagnose_9c; 457 u64 diagnose_9c_ignored; 458 u64 diagnose_9c_forward; 459 u64 diagnose_258; 460 u64 diagnose_308; 461 u64 diagnose_500; 462 u64 diagnose_other; 463 u64 pfault_sync; 464 }; 465 466 #define PGM_OPERATION 0x01 467 #define PGM_PRIVILEGED_OP 0x02 468 #define PGM_EXECUTE 0x03 469 #define PGM_PROTECTION 0x04 470 #define PGM_ADDRESSING 0x05 471 #define PGM_SPECIFICATION 0x06 472 #define PGM_DATA 0x07 473 #define PGM_FIXED_POINT_OVERFLOW 0x08 474 #define PGM_FIXED_POINT_DIVIDE 0x09 475 #define PGM_DECIMAL_OVERFLOW 0x0a 476 #define PGM_DECIMAL_DIVIDE 0x0b 477 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 478 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 479 #define PGM_HFP_SIGNIFICANCE 0x0e 480 #define PGM_HFP_DIVIDE 0x0f 481 #define PGM_SEGMENT_TRANSLATION 0x10 482 #define PGM_PAGE_TRANSLATION 0x11 483 #define PGM_TRANSLATION_SPEC 0x12 484 #define PGM_SPECIAL_OPERATION 0x13 485 #define PGM_OPERAND 0x15 486 #define PGM_TRACE_TABEL 0x16 487 #define PGM_VECTOR_PROCESSING 0x1b 488 #define PGM_SPACE_SWITCH 0x1c 489 #define PGM_HFP_SQUARE_ROOT 0x1d 490 #define PGM_PC_TRANSLATION_SPEC 0x1f 491 #define PGM_AFX_TRANSLATION 0x20 492 #define PGM_ASX_TRANSLATION 0x21 493 #define PGM_LX_TRANSLATION 0x22 494 #define PGM_EX_TRANSLATION 0x23 495 #define PGM_PRIMARY_AUTHORITY 0x24 496 #define PGM_SECONDARY_AUTHORITY 0x25 497 #define PGM_LFX_TRANSLATION 0x26 498 #define PGM_LSX_TRANSLATION 0x27 499 #define PGM_ALET_SPECIFICATION 0x28 500 #define PGM_ALEN_TRANSLATION 0x29 501 #define PGM_ALE_SEQUENCE 0x2a 502 #define PGM_ASTE_VALIDITY 0x2b 503 #define PGM_ASTE_SEQUENCE 0x2c 504 #define PGM_EXTENDED_AUTHORITY 0x2d 505 #define PGM_LSTE_SEQUENCE 0x2e 506 #define PGM_ASTE_INSTANCE 0x2f 507 #define PGM_STACK_FULL 0x30 508 #define PGM_STACK_EMPTY 0x31 509 #define PGM_STACK_SPECIFICATION 0x32 510 #define PGM_STACK_TYPE 0x33 511 #define PGM_STACK_OPERATION 0x34 512 #define PGM_ASCE_TYPE 0x38 513 #define PGM_REGION_FIRST_TRANS 0x39 514 #define PGM_REGION_SECOND_TRANS 0x3a 515 #define PGM_REGION_THIRD_TRANS 0x3b 516 #define PGM_MONITOR 0x40 517 #define PGM_PER 0x80 518 #define PGM_CRYPTO_OPERATION 0x119 519 520 /* irq types in ascend order of priorities */ 521 enum irq_types { 522 IRQ_PEND_SET_PREFIX = 0, 523 IRQ_PEND_RESTART, 524 IRQ_PEND_SIGP_STOP, 525 IRQ_PEND_IO_ISC_7, 526 IRQ_PEND_IO_ISC_6, 527 IRQ_PEND_IO_ISC_5, 528 IRQ_PEND_IO_ISC_4, 529 IRQ_PEND_IO_ISC_3, 530 IRQ_PEND_IO_ISC_2, 531 IRQ_PEND_IO_ISC_1, 532 IRQ_PEND_IO_ISC_0, 533 IRQ_PEND_VIRTIO, 534 IRQ_PEND_PFAULT_DONE, 535 IRQ_PEND_PFAULT_INIT, 536 IRQ_PEND_EXT_HOST, 537 IRQ_PEND_EXT_SERVICE, 538 IRQ_PEND_EXT_SERVICE_EV, 539 IRQ_PEND_EXT_TIMING, 540 IRQ_PEND_EXT_CPU_TIMER, 541 IRQ_PEND_EXT_CLOCK_COMP, 542 IRQ_PEND_EXT_EXTERNAL, 543 IRQ_PEND_EXT_EMERGENCY, 544 IRQ_PEND_EXT_MALFUNC, 545 IRQ_PEND_EXT_IRQ_KEY, 546 IRQ_PEND_MCHK_REP, 547 IRQ_PEND_PROG, 548 IRQ_PEND_SVC, 549 IRQ_PEND_MCHK_EX, 550 IRQ_PEND_COUNT 551 }; 552 553 /* We have 2M for virtio device descriptor pages. Smallest amount of 554 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 555 */ 556 #define KVM_S390_MAX_VIRTIO_IRQS 87381 557 558 /* 559 * Repressible (non-floating) machine check interrupts 560 * subclass bits in MCIC 561 */ 562 #define MCHK_EXTD_BIT 58 563 #define MCHK_DEGR_BIT 56 564 #define MCHK_WARN_BIT 55 565 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 566 (1UL << MCHK_EXTD_BIT) | \ 567 (1UL << MCHK_WARN_BIT)) 568 569 /* Exigent machine check interrupts subclass bits in MCIC */ 570 #define MCHK_SD_BIT 63 571 #define MCHK_PD_BIT 62 572 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 573 574 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 575 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 576 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 577 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 578 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 579 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 580 (1UL << IRQ_PEND_EXT_TIMING) | \ 581 (1UL << IRQ_PEND_EXT_HOST) | \ 582 (1UL << IRQ_PEND_EXT_SERVICE) | \ 583 (1UL << IRQ_PEND_EXT_SERVICE_EV) | \ 584 (1UL << IRQ_PEND_VIRTIO) | \ 585 (1UL << IRQ_PEND_PFAULT_INIT) | \ 586 (1UL << IRQ_PEND_PFAULT_DONE)) 587 588 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 589 (1UL << IRQ_PEND_IO_ISC_1) | \ 590 (1UL << IRQ_PEND_IO_ISC_2) | \ 591 (1UL << IRQ_PEND_IO_ISC_3) | \ 592 (1UL << IRQ_PEND_IO_ISC_4) | \ 593 (1UL << IRQ_PEND_IO_ISC_5) | \ 594 (1UL << IRQ_PEND_IO_ISC_6) | \ 595 (1UL << IRQ_PEND_IO_ISC_7)) 596 597 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 598 (1UL << IRQ_PEND_MCHK_EX)) 599 600 #define IRQ_PEND_EXT_II_MASK ((1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 601 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 602 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 603 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 604 (1UL << IRQ_PEND_EXT_SERVICE) | \ 605 (1UL << IRQ_PEND_EXT_SERVICE_EV)) 606 607 struct kvm_s390_interrupt_info { 608 struct list_head list; 609 u64 type; 610 union { 611 struct kvm_s390_io_info io; 612 struct kvm_s390_ext_info ext; 613 struct kvm_s390_pgm_info pgm; 614 struct kvm_s390_emerg_info emerg; 615 struct kvm_s390_extcall_info extcall; 616 struct kvm_s390_prefix_info prefix; 617 struct kvm_s390_stop_info stop; 618 struct kvm_s390_mchk_info mchk; 619 }; 620 }; 621 622 struct kvm_s390_irq_payload { 623 struct kvm_s390_io_info io; 624 struct kvm_s390_ext_info ext; 625 struct kvm_s390_pgm_info pgm; 626 struct kvm_s390_emerg_info emerg; 627 struct kvm_s390_extcall_info extcall; 628 struct kvm_s390_prefix_info prefix; 629 struct kvm_s390_stop_info stop; 630 struct kvm_s390_mchk_info mchk; 631 }; 632 633 struct kvm_s390_local_interrupt { 634 spinlock_t lock; 635 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 636 struct kvm_s390_irq_payload irq; 637 unsigned long pending_irqs; 638 }; 639 640 #define FIRQ_LIST_IO_ISC_0 0 641 #define FIRQ_LIST_IO_ISC_1 1 642 #define FIRQ_LIST_IO_ISC_2 2 643 #define FIRQ_LIST_IO_ISC_3 3 644 #define FIRQ_LIST_IO_ISC_4 4 645 #define FIRQ_LIST_IO_ISC_5 5 646 #define FIRQ_LIST_IO_ISC_6 6 647 #define FIRQ_LIST_IO_ISC_7 7 648 #define FIRQ_LIST_PFAULT 8 649 #define FIRQ_LIST_VIRTIO 9 650 #define FIRQ_LIST_COUNT 10 651 #define FIRQ_CNTR_IO 0 652 #define FIRQ_CNTR_SERVICE 1 653 #define FIRQ_CNTR_VIRTIO 2 654 #define FIRQ_CNTR_PFAULT 3 655 #define FIRQ_MAX_COUNT 4 656 657 /* mask the AIS mode for a given ISC */ 658 #define AIS_MODE_MASK(isc) (0x80 >> isc) 659 660 #define KVM_S390_AIS_MODE_ALL 0 661 #define KVM_S390_AIS_MODE_SINGLE 1 662 663 struct kvm_s390_float_interrupt { 664 unsigned long pending_irqs; 665 unsigned long masked_irqs; 666 spinlock_t lock; 667 struct list_head lists[FIRQ_LIST_COUNT]; 668 int counters[FIRQ_MAX_COUNT]; 669 struct kvm_s390_mchk_info mchk; 670 struct kvm_s390_ext_info srv_signal; 671 int next_rr_cpu; 672 struct mutex ais_lock; 673 u8 simm; 674 u8 nimm; 675 }; 676 677 struct kvm_hw_wp_info_arch { 678 unsigned long addr; 679 unsigned long phys_addr; 680 int len; 681 char *old_data; 682 }; 683 684 struct kvm_hw_bp_info_arch { 685 unsigned long addr; 686 int len; 687 }; 688 689 /* 690 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 691 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 692 * arch/s390/include/uapi/asm/kvm.h 693 */ 694 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 695 696 #define guestdbg_enabled(vcpu) \ 697 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 698 #define guestdbg_sstep_enabled(vcpu) \ 699 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 700 #define guestdbg_hw_bp_enabled(vcpu) \ 701 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 702 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 703 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 704 705 #define KVM_GUESTDBG_VALID_MASK \ 706 (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP |\ 707 KVM_GUESTDBG_USE_HW_BP | KVM_GUESTDBG_EXIT_PENDING) 708 709 struct kvm_guestdbg_info_arch { 710 unsigned long cr0; 711 unsigned long cr9; 712 unsigned long cr10; 713 unsigned long cr11; 714 struct kvm_hw_bp_info_arch *hw_bp_info; 715 struct kvm_hw_wp_info_arch *hw_wp_info; 716 int nr_hw_bp; 717 int nr_hw_wp; 718 unsigned long last_bp; 719 }; 720 721 struct kvm_s390_pv_vcpu { 722 u64 handle; 723 unsigned long stor_base; 724 }; 725 726 struct kvm_vcpu_arch { 727 struct kvm_s390_sie_block *sie_block; 728 /* if vsie is active, currently executed shadow sie control block */ 729 struct kvm_s390_sie_block *vsie_block; 730 unsigned int host_acrs[NUM_ACRS]; 731 struct gs_cb *host_gscb; 732 struct fpu host_fpregs; 733 struct kvm_s390_local_interrupt local_int; 734 struct hrtimer ckc_timer; 735 struct kvm_s390_pgm_info pgm; 736 struct gmap *gmap; 737 /* backup location for the currently enabled gmap when scheduled out */ 738 struct gmap *enabled_gmap; 739 struct kvm_guestdbg_info_arch guestdbg; 740 unsigned long pfault_token; 741 unsigned long pfault_select; 742 unsigned long pfault_compare; 743 bool cputm_enabled; 744 /* 745 * The seqcount protects updates to cputm_start and sie_block.cputm, 746 * this way we can have non-blocking reads with consistent values. 747 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 748 * values and to start/stop/enable/disable cpu timer accounting. 749 */ 750 seqcount_t cputm_seqcount; 751 __u64 cputm_start; 752 bool gs_enabled; 753 bool skey_enabled; 754 struct kvm_s390_pv_vcpu pv; 755 union diag318_info diag318_info; 756 }; 757 758 struct kvm_vm_stat { 759 u64 inject_io; 760 u64 inject_float_mchk; 761 u64 inject_pfault_done; 762 u64 inject_service_signal; 763 u64 inject_virtio; 764 u64 remote_tlb_flush; 765 }; 766 767 struct kvm_arch_memory_slot { 768 }; 769 770 struct s390_map_info { 771 struct list_head list; 772 __u64 guest_addr; 773 __u64 addr; 774 struct page *page; 775 }; 776 777 struct s390_io_adapter { 778 unsigned int id; 779 int isc; 780 bool maskable; 781 bool masked; 782 bool swap; 783 bool suppressible; 784 }; 785 786 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 787 #define MAX_S390_ADAPTER_MAPS 256 788 789 /* maximum size of facilities and facility mask is 2k bytes */ 790 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 791 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 792 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 793 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 794 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 795 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 796 797 struct kvm_s390_cpu_model { 798 /* facility mask supported by kvm & hosting machine */ 799 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 800 struct kvm_s390_vm_cpu_subfunc subfuncs; 801 /* facility list requested by guest (in dma page) */ 802 __u64 *fac_list; 803 u64 cpuid; 804 unsigned short ibc; 805 }; 806 807 struct kvm_s390_module_hook { 808 int (*hook)(struct kvm_vcpu *vcpu); 809 struct module *owner; 810 }; 811 812 struct kvm_s390_crypto { 813 struct kvm_s390_crypto_cb *crycb; 814 struct kvm_s390_module_hook *pqap_hook; 815 __u32 crycbd; 816 __u8 aes_kw; 817 __u8 dea_kw; 818 __u8 apie; 819 }; 820 821 #define APCB0_MASK_SIZE 1 822 struct kvm_s390_apcb0 { 823 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */ 824 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */ 825 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */ 826 __u64 reserved18; /* 0x0018 */ 827 }; 828 829 #define APCB1_MASK_SIZE 4 830 struct kvm_s390_apcb1 { 831 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */ 832 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */ 833 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */ 834 __u64 reserved60[4]; /* 0x0060 */ 835 }; 836 837 struct kvm_s390_crypto_cb { 838 struct kvm_s390_apcb0 apcb0; /* 0x0000 */ 839 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */ 840 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 841 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 842 struct kvm_s390_apcb1 apcb1; /* 0x0080 */ 843 }; 844 845 struct kvm_s390_gisa { 846 union { 847 struct { /* common to all formats */ 848 u32 next_alert; 849 u8 ipm; 850 u8 reserved01[2]; 851 u8 iam; 852 }; 853 struct { /* format 0 */ 854 u32 next_alert; 855 u8 ipm; 856 u8 reserved01; 857 u8 : 6; 858 u8 g : 1; 859 u8 c : 1; 860 u8 iam; 861 u8 reserved02[4]; 862 u32 airq_count; 863 } g0; 864 struct { /* format 1 */ 865 u32 next_alert; 866 u8 ipm; 867 u8 simm; 868 u8 nimm; 869 u8 iam; 870 u8 aism[8]; 871 u8 : 6; 872 u8 g : 1; 873 u8 c : 1; 874 u8 reserved03[11]; 875 u32 airq_count; 876 } g1; 877 struct { 878 u64 word[4]; 879 } u64; 880 }; 881 }; 882 883 struct kvm_s390_gib { 884 u32 alert_list_origin; 885 u32 reserved01; 886 u8:5; 887 u8 nisc:3; 888 u8 reserved03[3]; 889 u32 reserved04[5]; 890 }; 891 892 /* 893 * sie_page2 has to be allocated as DMA because fac_list, crycb and 894 * gisa need 31bit addresses in the sie control block. 895 */ 896 struct sie_page2 { 897 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 898 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 899 struct kvm_s390_gisa gisa; /* 0x0900 */ 900 struct kvm *kvm; /* 0x0920 */ 901 u8 reserved928[0x1000 - 0x928]; /* 0x0928 */ 902 }; 903 904 struct kvm_s390_vsie { 905 struct mutex mutex; 906 struct radix_tree_root addr_to_page; 907 int page_count; 908 int next; 909 struct page *pages[KVM_MAX_VCPUS]; 910 }; 911 912 struct kvm_s390_gisa_iam { 913 u8 mask; 914 spinlock_t ref_lock; 915 u32 ref_count[MAX_ISC + 1]; 916 }; 917 918 struct kvm_s390_gisa_interrupt { 919 struct kvm_s390_gisa *origin; 920 struct kvm_s390_gisa_iam alert; 921 struct hrtimer timer; 922 u64 expires; 923 DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS); 924 }; 925 926 struct kvm_s390_pv { 927 u64 handle; 928 u64 guest_len; 929 unsigned long stor_base; 930 void *stor_var; 931 }; 932 933 struct kvm_arch{ 934 void *sca; 935 int use_esca; 936 rwlock_t sca_lock; 937 debug_info_t *dbf; 938 struct kvm_s390_float_interrupt float_int; 939 struct kvm_device *flic; 940 struct gmap *gmap; 941 unsigned long mem_limit; 942 int css_support; 943 int use_irqchip; 944 int use_cmma; 945 int use_pfmfi; 946 int use_skf; 947 int user_cpu_state_ctrl; 948 int user_sigp; 949 int user_stsi; 950 int user_instr0; 951 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 952 wait_queue_head_t ipte_wq; 953 int ipte_lock_count; 954 struct mutex ipte_mutex; 955 spinlock_t start_stop_lock; 956 struct sie_page2 *sie_page2; 957 struct kvm_s390_cpu_model model; 958 struct kvm_s390_crypto crypto; 959 struct kvm_s390_vsie vsie; 960 u8 epdx; 961 u64 epoch; 962 int migration_mode; 963 atomic64_t cmma_dirty_pages; 964 /* subset of available cpu features enabled by user space */ 965 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 966 DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS); 967 struct kvm_s390_gisa_interrupt gisa_int; 968 struct kvm_s390_pv pv; 969 }; 970 971 #define KVM_HVA_ERR_BAD (-1UL) 972 #define KVM_HVA_ERR_RO_BAD (-2UL) 973 974 static inline bool kvm_is_error_hva(unsigned long addr) 975 { 976 return IS_ERR_VALUE(addr); 977 } 978 979 #define ASYNC_PF_PER_VCPU 64 980 struct kvm_arch_async_pf { 981 unsigned long pfault_token; 982 }; 983 984 bool kvm_arch_can_dequeue_async_page_present(struct kvm_vcpu *vcpu); 985 986 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 987 struct kvm_async_pf *work); 988 989 bool kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 990 struct kvm_async_pf *work); 991 992 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 993 struct kvm_async_pf *work); 994 995 static inline void kvm_arch_async_page_present_queued(struct kvm_vcpu *vcpu) {} 996 997 void kvm_arch_crypto_clear_masks(struct kvm *kvm); 998 void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm, 999 unsigned long *aqm, unsigned long *adm); 1000 1001 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 1002 extern char sie_exit; 1003 1004 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc); 1005 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc); 1006 1007 static inline void kvm_arch_hardware_disable(void) {} 1008 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 1009 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 1010 static inline void kvm_arch_free_memslot(struct kvm *kvm, 1011 struct kvm_memory_slot *slot) {} 1012 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 1013 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 1014 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 1015 struct kvm_memory_slot *slot) {} 1016 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 1017 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 1018 1019 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 1020 1021 #endif 1022