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, which we 35 * don't use. 1 is as small as we can get to reduce the needed memory. If we 36 * need 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 1 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 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_258; 459 u64 diagnose_308; 460 u64 diagnose_500; 461 u64 diagnose_other; 462 u64 pfault_sync; 463 }; 464 465 #define PGM_OPERATION 0x01 466 #define PGM_PRIVILEGED_OP 0x02 467 #define PGM_EXECUTE 0x03 468 #define PGM_PROTECTION 0x04 469 #define PGM_ADDRESSING 0x05 470 #define PGM_SPECIFICATION 0x06 471 #define PGM_DATA 0x07 472 #define PGM_FIXED_POINT_OVERFLOW 0x08 473 #define PGM_FIXED_POINT_DIVIDE 0x09 474 #define PGM_DECIMAL_OVERFLOW 0x0a 475 #define PGM_DECIMAL_DIVIDE 0x0b 476 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 477 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 478 #define PGM_HFP_SIGNIFICANCE 0x0e 479 #define PGM_HFP_DIVIDE 0x0f 480 #define PGM_SEGMENT_TRANSLATION 0x10 481 #define PGM_PAGE_TRANSLATION 0x11 482 #define PGM_TRANSLATION_SPEC 0x12 483 #define PGM_SPECIAL_OPERATION 0x13 484 #define PGM_OPERAND 0x15 485 #define PGM_TRACE_TABEL 0x16 486 #define PGM_VECTOR_PROCESSING 0x1b 487 #define PGM_SPACE_SWITCH 0x1c 488 #define PGM_HFP_SQUARE_ROOT 0x1d 489 #define PGM_PC_TRANSLATION_SPEC 0x1f 490 #define PGM_AFX_TRANSLATION 0x20 491 #define PGM_ASX_TRANSLATION 0x21 492 #define PGM_LX_TRANSLATION 0x22 493 #define PGM_EX_TRANSLATION 0x23 494 #define PGM_PRIMARY_AUTHORITY 0x24 495 #define PGM_SECONDARY_AUTHORITY 0x25 496 #define PGM_LFX_TRANSLATION 0x26 497 #define PGM_LSX_TRANSLATION 0x27 498 #define PGM_ALET_SPECIFICATION 0x28 499 #define PGM_ALEN_TRANSLATION 0x29 500 #define PGM_ALE_SEQUENCE 0x2a 501 #define PGM_ASTE_VALIDITY 0x2b 502 #define PGM_ASTE_SEQUENCE 0x2c 503 #define PGM_EXTENDED_AUTHORITY 0x2d 504 #define PGM_LSTE_SEQUENCE 0x2e 505 #define PGM_ASTE_INSTANCE 0x2f 506 #define PGM_STACK_FULL 0x30 507 #define PGM_STACK_EMPTY 0x31 508 #define PGM_STACK_SPECIFICATION 0x32 509 #define PGM_STACK_TYPE 0x33 510 #define PGM_STACK_OPERATION 0x34 511 #define PGM_ASCE_TYPE 0x38 512 #define PGM_REGION_FIRST_TRANS 0x39 513 #define PGM_REGION_SECOND_TRANS 0x3a 514 #define PGM_REGION_THIRD_TRANS 0x3b 515 #define PGM_MONITOR 0x40 516 #define PGM_PER 0x80 517 #define PGM_CRYPTO_OPERATION 0x119 518 519 /* irq types in ascend order of priorities */ 520 enum irq_types { 521 IRQ_PEND_SET_PREFIX = 0, 522 IRQ_PEND_RESTART, 523 IRQ_PEND_SIGP_STOP, 524 IRQ_PEND_IO_ISC_7, 525 IRQ_PEND_IO_ISC_6, 526 IRQ_PEND_IO_ISC_5, 527 IRQ_PEND_IO_ISC_4, 528 IRQ_PEND_IO_ISC_3, 529 IRQ_PEND_IO_ISC_2, 530 IRQ_PEND_IO_ISC_1, 531 IRQ_PEND_IO_ISC_0, 532 IRQ_PEND_VIRTIO, 533 IRQ_PEND_PFAULT_DONE, 534 IRQ_PEND_PFAULT_INIT, 535 IRQ_PEND_EXT_HOST, 536 IRQ_PEND_EXT_SERVICE, 537 IRQ_PEND_EXT_SERVICE_EV, 538 IRQ_PEND_EXT_TIMING, 539 IRQ_PEND_EXT_CPU_TIMER, 540 IRQ_PEND_EXT_CLOCK_COMP, 541 IRQ_PEND_EXT_EXTERNAL, 542 IRQ_PEND_EXT_EMERGENCY, 543 IRQ_PEND_EXT_MALFUNC, 544 IRQ_PEND_EXT_IRQ_KEY, 545 IRQ_PEND_MCHK_REP, 546 IRQ_PEND_PROG, 547 IRQ_PEND_SVC, 548 IRQ_PEND_MCHK_EX, 549 IRQ_PEND_COUNT 550 }; 551 552 /* We have 2M for virtio device descriptor pages. Smallest amount of 553 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 554 */ 555 #define KVM_S390_MAX_VIRTIO_IRQS 87381 556 557 /* 558 * Repressible (non-floating) machine check interrupts 559 * subclass bits in MCIC 560 */ 561 #define MCHK_EXTD_BIT 58 562 #define MCHK_DEGR_BIT 56 563 #define MCHK_WARN_BIT 55 564 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 565 (1UL << MCHK_EXTD_BIT) | \ 566 (1UL << MCHK_WARN_BIT)) 567 568 /* Exigent machine check interrupts subclass bits in MCIC */ 569 #define MCHK_SD_BIT 63 570 #define MCHK_PD_BIT 62 571 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 572 573 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 574 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 575 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 576 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 577 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 578 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 579 (1UL << IRQ_PEND_EXT_TIMING) | \ 580 (1UL << IRQ_PEND_EXT_HOST) | \ 581 (1UL << IRQ_PEND_EXT_SERVICE) | \ 582 (1UL << IRQ_PEND_EXT_SERVICE_EV) | \ 583 (1UL << IRQ_PEND_VIRTIO) | \ 584 (1UL << IRQ_PEND_PFAULT_INIT) | \ 585 (1UL << IRQ_PEND_PFAULT_DONE)) 586 587 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 588 (1UL << IRQ_PEND_IO_ISC_1) | \ 589 (1UL << IRQ_PEND_IO_ISC_2) | \ 590 (1UL << IRQ_PEND_IO_ISC_3) | \ 591 (1UL << IRQ_PEND_IO_ISC_4) | \ 592 (1UL << IRQ_PEND_IO_ISC_5) | \ 593 (1UL << IRQ_PEND_IO_ISC_6) | \ 594 (1UL << IRQ_PEND_IO_ISC_7)) 595 596 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 597 (1UL << IRQ_PEND_MCHK_EX)) 598 599 #define IRQ_PEND_EXT_II_MASK ((1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 600 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 601 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 602 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 603 (1UL << IRQ_PEND_EXT_SERVICE) | \ 604 (1UL << IRQ_PEND_EXT_SERVICE_EV)) 605 606 struct kvm_s390_interrupt_info { 607 struct list_head list; 608 u64 type; 609 union { 610 struct kvm_s390_io_info io; 611 struct kvm_s390_ext_info ext; 612 struct kvm_s390_pgm_info pgm; 613 struct kvm_s390_emerg_info emerg; 614 struct kvm_s390_extcall_info extcall; 615 struct kvm_s390_prefix_info prefix; 616 struct kvm_s390_stop_info stop; 617 struct kvm_s390_mchk_info mchk; 618 }; 619 }; 620 621 struct kvm_s390_irq_payload { 622 struct kvm_s390_io_info io; 623 struct kvm_s390_ext_info ext; 624 struct kvm_s390_pgm_info pgm; 625 struct kvm_s390_emerg_info emerg; 626 struct kvm_s390_extcall_info extcall; 627 struct kvm_s390_prefix_info prefix; 628 struct kvm_s390_stop_info stop; 629 struct kvm_s390_mchk_info mchk; 630 }; 631 632 struct kvm_s390_local_interrupt { 633 spinlock_t lock; 634 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 635 struct kvm_s390_irq_payload irq; 636 unsigned long pending_irqs; 637 }; 638 639 #define FIRQ_LIST_IO_ISC_0 0 640 #define FIRQ_LIST_IO_ISC_1 1 641 #define FIRQ_LIST_IO_ISC_2 2 642 #define FIRQ_LIST_IO_ISC_3 3 643 #define FIRQ_LIST_IO_ISC_4 4 644 #define FIRQ_LIST_IO_ISC_5 5 645 #define FIRQ_LIST_IO_ISC_6 6 646 #define FIRQ_LIST_IO_ISC_7 7 647 #define FIRQ_LIST_PFAULT 8 648 #define FIRQ_LIST_VIRTIO 9 649 #define FIRQ_LIST_COUNT 10 650 #define FIRQ_CNTR_IO 0 651 #define FIRQ_CNTR_SERVICE 1 652 #define FIRQ_CNTR_VIRTIO 2 653 #define FIRQ_CNTR_PFAULT 3 654 #define FIRQ_MAX_COUNT 4 655 656 /* mask the AIS mode for a given ISC */ 657 #define AIS_MODE_MASK(isc) (0x80 >> isc) 658 659 #define KVM_S390_AIS_MODE_ALL 0 660 #define KVM_S390_AIS_MODE_SINGLE 1 661 662 struct kvm_s390_float_interrupt { 663 unsigned long pending_irqs; 664 unsigned long masked_irqs; 665 spinlock_t lock; 666 struct list_head lists[FIRQ_LIST_COUNT]; 667 int counters[FIRQ_MAX_COUNT]; 668 struct kvm_s390_mchk_info mchk; 669 struct kvm_s390_ext_info srv_signal; 670 int next_rr_cpu; 671 struct mutex ais_lock; 672 u8 simm; 673 u8 nimm; 674 }; 675 676 struct kvm_hw_wp_info_arch { 677 unsigned long addr; 678 unsigned long phys_addr; 679 int len; 680 char *old_data; 681 }; 682 683 struct kvm_hw_bp_info_arch { 684 unsigned long addr; 685 int len; 686 }; 687 688 /* 689 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 690 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 691 * arch/s390/include/uapi/asm/kvm.h 692 */ 693 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 694 695 #define guestdbg_enabled(vcpu) \ 696 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 697 #define guestdbg_sstep_enabled(vcpu) \ 698 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 699 #define guestdbg_hw_bp_enabled(vcpu) \ 700 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 701 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 702 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 703 704 struct kvm_guestdbg_info_arch { 705 unsigned long cr0; 706 unsigned long cr9; 707 unsigned long cr10; 708 unsigned long cr11; 709 struct kvm_hw_bp_info_arch *hw_bp_info; 710 struct kvm_hw_wp_info_arch *hw_wp_info; 711 int nr_hw_bp; 712 int nr_hw_wp; 713 unsigned long last_bp; 714 }; 715 716 struct kvm_s390_pv_vcpu { 717 u64 handle; 718 unsigned long stor_base; 719 }; 720 721 struct kvm_vcpu_arch { 722 struct kvm_s390_sie_block *sie_block; 723 /* if vsie is active, currently executed shadow sie control block */ 724 struct kvm_s390_sie_block *vsie_block; 725 unsigned int host_acrs[NUM_ACRS]; 726 struct gs_cb *host_gscb; 727 struct fpu host_fpregs; 728 struct kvm_s390_local_interrupt local_int; 729 struct hrtimer ckc_timer; 730 struct kvm_s390_pgm_info pgm; 731 struct gmap *gmap; 732 /* backup location for the currently enabled gmap when scheduled out */ 733 struct gmap *enabled_gmap; 734 struct kvm_guestdbg_info_arch guestdbg; 735 unsigned long pfault_token; 736 unsigned long pfault_select; 737 unsigned long pfault_compare; 738 bool cputm_enabled; 739 /* 740 * The seqcount protects updates to cputm_start and sie_block.cputm, 741 * this way we can have non-blocking reads with consistent values. 742 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 743 * values and to start/stop/enable/disable cpu timer accounting. 744 */ 745 seqcount_t cputm_seqcount; 746 __u64 cputm_start; 747 bool gs_enabled; 748 bool skey_enabled; 749 struct kvm_s390_pv_vcpu pv; 750 union diag318_info diag318_info; 751 }; 752 753 struct kvm_vm_stat { 754 u64 inject_io; 755 u64 inject_float_mchk; 756 u64 inject_pfault_done; 757 u64 inject_service_signal; 758 u64 inject_virtio; 759 u64 remote_tlb_flush; 760 }; 761 762 struct kvm_arch_memory_slot { 763 }; 764 765 struct s390_map_info { 766 struct list_head list; 767 __u64 guest_addr; 768 __u64 addr; 769 struct page *page; 770 }; 771 772 struct s390_io_adapter { 773 unsigned int id; 774 int isc; 775 bool maskable; 776 bool masked; 777 bool swap; 778 bool suppressible; 779 }; 780 781 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 782 #define MAX_S390_ADAPTER_MAPS 256 783 784 /* maximum size of facilities and facility mask is 2k bytes */ 785 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 786 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 787 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 788 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 789 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 790 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 791 792 struct kvm_s390_cpu_model { 793 /* facility mask supported by kvm & hosting machine */ 794 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 795 struct kvm_s390_vm_cpu_subfunc subfuncs; 796 /* facility list requested by guest (in dma page) */ 797 __u64 *fac_list; 798 u64 cpuid; 799 unsigned short ibc; 800 }; 801 802 struct kvm_s390_module_hook { 803 int (*hook)(struct kvm_vcpu *vcpu); 804 struct module *owner; 805 }; 806 807 struct kvm_s390_crypto { 808 struct kvm_s390_crypto_cb *crycb; 809 struct kvm_s390_module_hook *pqap_hook; 810 __u32 crycbd; 811 __u8 aes_kw; 812 __u8 dea_kw; 813 __u8 apie; 814 }; 815 816 #define APCB0_MASK_SIZE 1 817 struct kvm_s390_apcb0 { 818 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */ 819 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */ 820 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */ 821 __u64 reserved18; /* 0x0018 */ 822 }; 823 824 #define APCB1_MASK_SIZE 4 825 struct kvm_s390_apcb1 { 826 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */ 827 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */ 828 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */ 829 __u64 reserved60[4]; /* 0x0060 */ 830 }; 831 832 struct kvm_s390_crypto_cb { 833 struct kvm_s390_apcb0 apcb0; /* 0x0000 */ 834 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */ 835 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 836 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 837 struct kvm_s390_apcb1 apcb1; /* 0x0080 */ 838 }; 839 840 struct kvm_s390_gisa { 841 union { 842 struct { /* common to all formats */ 843 u32 next_alert; 844 u8 ipm; 845 u8 reserved01[2]; 846 u8 iam; 847 }; 848 struct { /* format 0 */ 849 u32 next_alert; 850 u8 ipm; 851 u8 reserved01; 852 u8 : 6; 853 u8 g : 1; 854 u8 c : 1; 855 u8 iam; 856 u8 reserved02[4]; 857 u32 airq_count; 858 } g0; 859 struct { /* format 1 */ 860 u32 next_alert; 861 u8 ipm; 862 u8 simm; 863 u8 nimm; 864 u8 iam; 865 u8 aism[8]; 866 u8 : 6; 867 u8 g : 1; 868 u8 c : 1; 869 u8 reserved03[11]; 870 u32 airq_count; 871 } g1; 872 struct { 873 u64 word[4]; 874 } u64; 875 }; 876 }; 877 878 struct kvm_s390_gib { 879 u32 alert_list_origin; 880 u32 reserved01; 881 u8:5; 882 u8 nisc:3; 883 u8 reserved03[3]; 884 u32 reserved04[5]; 885 }; 886 887 /* 888 * sie_page2 has to be allocated as DMA because fac_list, crycb and 889 * gisa need 31bit addresses in the sie control block. 890 */ 891 struct sie_page2 { 892 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 893 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 894 struct kvm_s390_gisa gisa; /* 0x0900 */ 895 struct kvm *kvm; /* 0x0920 */ 896 u8 reserved928[0x1000 - 0x928]; /* 0x0928 */ 897 }; 898 899 struct kvm_s390_vsie { 900 struct mutex mutex; 901 struct radix_tree_root addr_to_page; 902 int page_count; 903 int next; 904 struct page *pages[KVM_MAX_VCPUS]; 905 }; 906 907 struct kvm_s390_gisa_iam { 908 u8 mask; 909 spinlock_t ref_lock; 910 u32 ref_count[MAX_ISC + 1]; 911 }; 912 913 struct kvm_s390_gisa_interrupt { 914 struct kvm_s390_gisa *origin; 915 struct kvm_s390_gisa_iam alert; 916 struct hrtimer timer; 917 u64 expires; 918 DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS); 919 }; 920 921 struct kvm_s390_pv { 922 u64 handle; 923 u64 guest_len; 924 unsigned long stor_base; 925 void *stor_var; 926 }; 927 928 struct kvm_arch{ 929 void *sca; 930 int use_esca; 931 rwlock_t sca_lock; 932 debug_info_t *dbf; 933 struct kvm_s390_float_interrupt float_int; 934 struct kvm_device *flic; 935 struct gmap *gmap; 936 unsigned long mem_limit; 937 int css_support; 938 int use_irqchip; 939 int use_cmma; 940 int use_pfmfi; 941 int use_skf; 942 int user_cpu_state_ctrl; 943 int user_sigp; 944 int user_stsi; 945 int user_instr0; 946 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 947 wait_queue_head_t ipte_wq; 948 int ipte_lock_count; 949 struct mutex ipte_mutex; 950 spinlock_t start_stop_lock; 951 struct sie_page2 *sie_page2; 952 struct kvm_s390_cpu_model model; 953 struct kvm_s390_crypto crypto; 954 struct kvm_s390_vsie vsie; 955 u8 epdx; 956 u64 epoch; 957 int migration_mode; 958 atomic64_t cmma_dirty_pages; 959 /* subset of available cpu features enabled by user space */ 960 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 961 DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS); 962 struct kvm_s390_gisa_interrupt gisa_int; 963 struct kvm_s390_pv pv; 964 }; 965 966 #define KVM_HVA_ERR_BAD (-1UL) 967 #define KVM_HVA_ERR_RO_BAD (-2UL) 968 969 static inline bool kvm_is_error_hva(unsigned long addr) 970 { 971 return IS_ERR_VALUE(addr); 972 } 973 974 #define ASYNC_PF_PER_VCPU 64 975 struct kvm_arch_async_pf { 976 unsigned long pfault_token; 977 }; 978 979 bool kvm_arch_can_dequeue_async_page_present(struct kvm_vcpu *vcpu); 980 981 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 982 struct kvm_async_pf *work); 983 984 bool kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 985 struct kvm_async_pf *work); 986 987 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 988 struct kvm_async_pf *work); 989 990 static inline void kvm_arch_async_page_present_queued(struct kvm_vcpu *vcpu) {} 991 992 void kvm_arch_crypto_clear_masks(struct kvm *kvm); 993 void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm, 994 unsigned long *aqm, unsigned long *adm); 995 996 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 997 extern char sie_exit; 998 999 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc); 1000 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc); 1001 1002 static inline void kvm_arch_hardware_disable(void) {} 1003 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 1004 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 1005 static inline void kvm_arch_free_memslot(struct kvm *kvm, 1006 struct kvm_memory_slot *slot) {} 1007 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 1008 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 1009 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 1010 struct kvm_memory_slot *slot) {} 1011 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 1012 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 1013 1014 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 1015 1016 #endif 1017