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_SRSI 0x04 248 #define ECB_HOSTPROTINT 0x02 249 __u8 ecb; /* 0x0061 */ 250 #define ECB2_CMMA 0x80 251 #define ECB2_IEP 0x20 252 #define ECB2_PFMFI 0x08 253 #define ECB2_ESCA 0x04 254 __u8 ecb2; /* 0x0062 */ 255 #define ECB3_DEA 0x08 256 #define ECB3_AES 0x04 257 #define ECB3_RI 0x01 258 __u8 ecb3; /* 0x0063 */ 259 __u32 scaol; /* 0x0064 */ 260 __u8 sdf; /* 0x0068 */ 261 __u8 epdx; /* 0x0069 */ 262 __u8 cpnc; /* 0x006a */ 263 __u8 reserved6b; /* 0x006b */ 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 halt_poll_success_ns; 379 u64 halt_poll_fail_ns; 380 u64 instruction_lctl; 381 u64 instruction_lctlg; 382 u64 instruction_stctl; 383 u64 instruction_stctg; 384 u64 exit_program_interruption; 385 u64 exit_instr_and_program; 386 u64 exit_operation_exception; 387 u64 deliver_ckc; 388 u64 deliver_cputm; 389 u64 deliver_external_call; 390 u64 deliver_emergency_signal; 391 u64 deliver_service_signal; 392 u64 deliver_virtio; 393 u64 deliver_stop_signal; 394 u64 deliver_prefix_signal; 395 u64 deliver_restart_signal; 396 u64 deliver_program; 397 u64 deliver_io; 398 u64 deliver_machine_check; 399 u64 exit_wait_state; 400 u64 inject_ckc; 401 u64 inject_cputm; 402 u64 inject_external_call; 403 u64 inject_emergency_signal; 404 u64 inject_mchk; 405 u64 inject_pfault_init; 406 u64 inject_program; 407 u64 inject_restart; 408 u64 inject_set_prefix; 409 u64 inject_stop_signal; 410 u64 instruction_epsw; 411 u64 instruction_gs; 412 u64 instruction_io_other; 413 u64 instruction_lpsw; 414 u64 instruction_lpswe; 415 u64 instruction_pfmf; 416 u64 instruction_ptff; 417 u64 instruction_sck; 418 u64 instruction_sckpf; 419 u64 instruction_stidp; 420 u64 instruction_spx; 421 u64 instruction_stpx; 422 u64 instruction_stap; 423 u64 instruction_iske; 424 u64 instruction_ri; 425 u64 instruction_rrbe; 426 u64 instruction_sske; 427 u64 instruction_ipte_interlock; 428 u64 instruction_stsi; 429 u64 instruction_stfl; 430 u64 instruction_tb; 431 u64 instruction_tpi; 432 u64 instruction_tprot; 433 u64 instruction_tsch; 434 u64 instruction_sie; 435 u64 instruction_essa; 436 u64 instruction_sthyi; 437 u64 instruction_sigp_sense; 438 u64 instruction_sigp_sense_running; 439 u64 instruction_sigp_external_call; 440 u64 instruction_sigp_emergency; 441 u64 instruction_sigp_cond_emergency; 442 u64 instruction_sigp_start; 443 u64 instruction_sigp_stop; 444 u64 instruction_sigp_stop_store_status; 445 u64 instruction_sigp_store_status; 446 u64 instruction_sigp_store_adtl_status; 447 u64 instruction_sigp_arch; 448 u64 instruction_sigp_prefix; 449 u64 instruction_sigp_restart; 450 u64 instruction_sigp_init_cpu_reset; 451 u64 instruction_sigp_cpu_reset; 452 u64 instruction_sigp_unknown; 453 u64 diagnose_10; 454 u64 diagnose_44; 455 u64 diagnose_9c; 456 u64 diagnose_9c_ignored; 457 u64 diagnose_9c_forward; 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 #define KVM_GUESTDBG_VALID_MASK \ 705 (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP |\ 706 KVM_GUESTDBG_USE_HW_BP | KVM_GUESTDBG_EXIT_PENDING) 707 708 struct kvm_guestdbg_info_arch { 709 unsigned long cr0; 710 unsigned long cr9; 711 unsigned long cr10; 712 unsigned long cr11; 713 struct kvm_hw_bp_info_arch *hw_bp_info; 714 struct kvm_hw_wp_info_arch *hw_wp_info; 715 int nr_hw_bp; 716 int nr_hw_wp; 717 unsigned long last_bp; 718 }; 719 720 struct kvm_s390_pv_vcpu { 721 u64 handle; 722 unsigned long stor_base; 723 }; 724 725 struct kvm_vcpu_arch { 726 struct kvm_s390_sie_block *sie_block; 727 /* if vsie is active, currently executed shadow sie control block */ 728 struct kvm_s390_sie_block *vsie_block; 729 unsigned int host_acrs[NUM_ACRS]; 730 struct gs_cb *host_gscb; 731 struct fpu host_fpregs; 732 struct kvm_s390_local_interrupt local_int; 733 struct hrtimer ckc_timer; 734 struct kvm_s390_pgm_info pgm; 735 struct gmap *gmap; 736 /* backup location for the currently enabled gmap when scheduled out */ 737 struct gmap *enabled_gmap; 738 struct kvm_guestdbg_info_arch guestdbg; 739 unsigned long pfault_token; 740 unsigned long pfault_select; 741 unsigned long pfault_compare; 742 bool cputm_enabled; 743 /* 744 * The seqcount protects updates to cputm_start and sie_block.cputm, 745 * this way we can have non-blocking reads with consistent values. 746 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 747 * values and to start/stop/enable/disable cpu timer accounting. 748 */ 749 seqcount_t cputm_seqcount; 750 __u64 cputm_start; 751 bool gs_enabled; 752 bool skey_enabled; 753 struct kvm_s390_pv_vcpu pv; 754 union diag318_info diag318_info; 755 }; 756 757 struct kvm_vm_stat { 758 u64 inject_io; 759 u64 inject_float_mchk; 760 u64 inject_pfault_done; 761 u64 inject_service_signal; 762 u64 inject_virtio; 763 u64 remote_tlb_flush; 764 }; 765 766 struct kvm_arch_memory_slot { 767 }; 768 769 struct s390_map_info { 770 struct list_head list; 771 __u64 guest_addr; 772 __u64 addr; 773 struct page *page; 774 }; 775 776 struct s390_io_adapter { 777 unsigned int id; 778 int isc; 779 bool maskable; 780 bool masked; 781 bool swap; 782 bool suppressible; 783 }; 784 785 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 786 #define MAX_S390_ADAPTER_MAPS 256 787 788 /* maximum size of facilities and facility mask is 2k bytes */ 789 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 790 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 791 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 792 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 793 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 794 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 795 796 struct kvm_s390_cpu_model { 797 /* facility mask supported by kvm & hosting machine */ 798 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 799 struct kvm_s390_vm_cpu_subfunc subfuncs; 800 /* facility list requested by guest (in dma page) */ 801 __u64 *fac_list; 802 u64 cpuid; 803 unsigned short ibc; 804 }; 805 806 struct kvm_s390_module_hook { 807 int (*hook)(struct kvm_vcpu *vcpu); 808 struct module *owner; 809 }; 810 811 struct kvm_s390_crypto { 812 struct kvm_s390_crypto_cb *crycb; 813 struct kvm_s390_module_hook *pqap_hook; 814 __u32 crycbd; 815 __u8 aes_kw; 816 __u8 dea_kw; 817 __u8 apie; 818 }; 819 820 #define APCB0_MASK_SIZE 1 821 struct kvm_s390_apcb0 { 822 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */ 823 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */ 824 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */ 825 __u64 reserved18; /* 0x0018 */ 826 }; 827 828 #define APCB1_MASK_SIZE 4 829 struct kvm_s390_apcb1 { 830 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */ 831 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */ 832 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */ 833 __u64 reserved60[4]; /* 0x0060 */ 834 }; 835 836 struct kvm_s390_crypto_cb { 837 struct kvm_s390_apcb0 apcb0; /* 0x0000 */ 838 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */ 839 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 840 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 841 struct kvm_s390_apcb1 apcb1; /* 0x0080 */ 842 }; 843 844 struct kvm_s390_gisa { 845 union { 846 struct { /* common to all formats */ 847 u32 next_alert; 848 u8 ipm; 849 u8 reserved01[2]; 850 u8 iam; 851 }; 852 struct { /* format 0 */ 853 u32 next_alert; 854 u8 ipm; 855 u8 reserved01; 856 u8 : 6; 857 u8 g : 1; 858 u8 c : 1; 859 u8 iam; 860 u8 reserved02[4]; 861 u32 airq_count; 862 } g0; 863 struct { /* format 1 */ 864 u32 next_alert; 865 u8 ipm; 866 u8 simm; 867 u8 nimm; 868 u8 iam; 869 u8 aism[8]; 870 u8 : 6; 871 u8 g : 1; 872 u8 c : 1; 873 u8 reserved03[11]; 874 u32 airq_count; 875 } g1; 876 struct { 877 u64 word[4]; 878 } u64; 879 }; 880 }; 881 882 struct kvm_s390_gib { 883 u32 alert_list_origin; 884 u32 reserved01; 885 u8:5; 886 u8 nisc:3; 887 u8 reserved03[3]; 888 u32 reserved04[5]; 889 }; 890 891 /* 892 * sie_page2 has to be allocated as DMA because fac_list, crycb and 893 * gisa need 31bit addresses in the sie control block. 894 */ 895 struct sie_page2 { 896 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 897 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 898 struct kvm_s390_gisa gisa; /* 0x0900 */ 899 struct kvm *kvm; /* 0x0920 */ 900 u8 reserved928[0x1000 - 0x928]; /* 0x0928 */ 901 }; 902 903 struct kvm_s390_vsie { 904 struct mutex mutex; 905 struct radix_tree_root addr_to_page; 906 int page_count; 907 int next; 908 struct page *pages[KVM_MAX_VCPUS]; 909 }; 910 911 struct kvm_s390_gisa_iam { 912 u8 mask; 913 spinlock_t ref_lock; 914 u32 ref_count[MAX_ISC + 1]; 915 }; 916 917 struct kvm_s390_gisa_interrupt { 918 struct kvm_s390_gisa *origin; 919 struct kvm_s390_gisa_iam alert; 920 struct hrtimer timer; 921 u64 expires; 922 DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS); 923 }; 924 925 struct kvm_s390_pv { 926 u64 handle; 927 u64 guest_len; 928 unsigned long stor_base; 929 void *stor_var; 930 }; 931 932 struct kvm_arch{ 933 void *sca; 934 int use_esca; 935 rwlock_t sca_lock; 936 debug_info_t *dbf; 937 struct kvm_s390_float_interrupt float_int; 938 struct kvm_device *flic; 939 struct gmap *gmap; 940 unsigned long mem_limit; 941 int css_support; 942 int use_irqchip; 943 int use_cmma; 944 int use_pfmfi; 945 int use_skf; 946 int user_cpu_state_ctrl; 947 int user_sigp; 948 int user_stsi; 949 int user_instr0; 950 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 951 wait_queue_head_t ipte_wq; 952 int ipte_lock_count; 953 struct mutex ipte_mutex; 954 spinlock_t start_stop_lock; 955 struct sie_page2 *sie_page2; 956 struct kvm_s390_cpu_model model; 957 struct kvm_s390_crypto crypto; 958 struct kvm_s390_vsie vsie; 959 u8 epdx; 960 u64 epoch; 961 int migration_mode; 962 atomic64_t cmma_dirty_pages; 963 /* subset of available cpu features enabled by user space */ 964 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 965 DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS); 966 struct kvm_s390_gisa_interrupt gisa_int; 967 struct kvm_s390_pv pv; 968 }; 969 970 #define KVM_HVA_ERR_BAD (-1UL) 971 #define KVM_HVA_ERR_RO_BAD (-2UL) 972 973 static inline bool kvm_is_error_hva(unsigned long addr) 974 { 975 return IS_ERR_VALUE(addr); 976 } 977 978 #define ASYNC_PF_PER_VCPU 64 979 struct kvm_arch_async_pf { 980 unsigned long pfault_token; 981 }; 982 983 bool kvm_arch_can_dequeue_async_page_present(struct kvm_vcpu *vcpu); 984 985 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 986 struct kvm_async_pf *work); 987 988 bool kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 989 struct kvm_async_pf *work); 990 991 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 992 struct kvm_async_pf *work); 993 994 static inline void kvm_arch_async_page_present_queued(struct kvm_vcpu *vcpu) {} 995 996 void kvm_arch_crypto_clear_masks(struct kvm *kvm); 997 void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm, 998 unsigned long *aqm, unsigned long *adm); 999 1000 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 1001 extern char sie_exit; 1002 1003 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc); 1004 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc); 1005 1006 static inline void kvm_arch_hardware_disable(void) {} 1007 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 1008 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 1009 static inline void kvm_arch_free_memslot(struct kvm *kvm, 1010 struct kvm_memory_slot *slot) {} 1011 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 1012 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 1013 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 1014 struct kvm_memory_slot *slot) {} 1015 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 1016 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 1017 1018 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 1019 1020 #endif 1021