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 struct kvm_vcpu_stat_generic generic; 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_no_poll_steal; 375 u64 instruction_lctl; 376 u64 instruction_lctlg; 377 u64 instruction_stctl; 378 u64 instruction_stctg; 379 u64 exit_program_interruption; 380 u64 exit_instr_and_program; 381 u64 exit_operation_exception; 382 u64 deliver_ckc; 383 u64 deliver_cputm; 384 u64 deliver_external_call; 385 u64 deliver_emergency_signal; 386 u64 deliver_service_signal; 387 u64 deliver_virtio; 388 u64 deliver_stop_signal; 389 u64 deliver_prefix_signal; 390 u64 deliver_restart_signal; 391 u64 deliver_program; 392 u64 deliver_io; 393 u64 deliver_machine_check; 394 u64 exit_wait_state; 395 u64 inject_ckc; 396 u64 inject_cputm; 397 u64 inject_external_call; 398 u64 inject_emergency_signal; 399 u64 inject_mchk; 400 u64 inject_pfault_init; 401 u64 inject_program; 402 u64 inject_restart; 403 u64 inject_set_prefix; 404 u64 inject_stop_signal; 405 u64 instruction_epsw; 406 u64 instruction_gs; 407 u64 instruction_io_other; 408 u64 instruction_lpsw; 409 u64 instruction_lpswe; 410 u64 instruction_pfmf; 411 u64 instruction_ptff; 412 u64 instruction_sck; 413 u64 instruction_sckpf; 414 u64 instruction_stidp; 415 u64 instruction_spx; 416 u64 instruction_stpx; 417 u64 instruction_stap; 418 u64 instruction_iske; 419 u64 instruction_ri; 420 u64 instruction_rrbe; 421 u64 instruction_sske; 422 u64 instruction_ipte_interlock; 423 u64 instruction_stsi; 424 u64 instruction_stfl; 425 u64 instruction_tb; 426 u64 instruction_tpi; 427 u64 instruction_tprot; 428 u64 instruction_tsch; 429 u64 instruction_sie; 430 u64 instruction_essa; 431 u64 instruction_sthyi; 432 u64 instruction_sigp_sense; 433 u64 instruction_sigp_sense_running; 434 u64 instruction_sigp_external_call; 435 u64 instruction_sigp_emergency; 436 u64 instruction_sigp_cond_emergency; 437 u64 instruction_sigp_start; 438 u64 instruction_sigp_stop; 439 u64 instruction_sigp_stop_store_status; 440 u64 instruction_sigp_store_status; 441 u64 instruction_sigp_store_adtl_status; 442 u64 instruction_sigp_arch; 443 u64 instruction_sigp_prefix; 444 u64 instruction_sigp_restart; 445 u64 instruction_sigp_init_cpu_reset; 446 u64 instruction_sigp_cpu_reset; 447 u64 instruction_sigp_unknown; 448 u64 instruction_diagnose_10; 449 u64 instruction_diagnose_44; 450 u64 instruction_diagnose_9c; 451 u64 diag_9c_ignored; 452 u64 diag_9c_forward; 453 u64 instruction_diagnose_258; 454 u64 instruction_diagnose_308; 455 u64 instruction_diagnose_500; 456 u64 instruction_diagnose_other; 457 u64 pfault_sync; 458 }; 459 460 #define PGM_OPERATION 0x01 461 #define PGM_PRIVILEGED_OP 0x02 462 #define PGM_EXECUTE 0x03 463 #define PGM_PROTECTION 0x04 464 #define PGM_ADDRESSING 0x05 465 #define PGM_SPECIFICATION 0x06 466 #define PGM_DATA 0x07 467 #define PGM_FIXED_POINT_OVERFLOW 0x08 468 #define PGM_FIXED_POINT_DIVIDE 0x09 469 #define PGM_DECIMAL_OVERFLOW 0x0a 470 #define PGM_DECIMAL_DIVIDE 0x0b 471 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 472 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 473 #define PGM_HFP_SIGNIFICANCE 0x0e 474 #define PGM_HFP_DIVIDE 0x0f 475 #define PGM_SEGMENT_TRANSLATION 0x10 476 #define PGM_PAGE_TRANSLATION 0x11 477 #define PGM_TRANSLATION_SPEC 0x12 478 #define PGM_SPECIAL_OPERATION 0x13 479 #define PGM_OPERAND 0x15 480 #define PGM_TRACE_TABEL 0x16 481 #define PGM_VECTOR_PROCESSING 0x1b 482 #define PGM_SPACE_SWITCH 0x1c 483 #define PGM_HFP_SQUARE_ROOT 0x1d 484 #define PGM_PC_TRANSLATION_SPEC 0x1f 485 #define PGM_AFX_TRANSLATION 0x20 486 #define PGM_ASX_TRANSLATION 0x21 487 #define PGM_LX_TRANSLATION 0x22 488 #define PGM_EX_TRANSLATION 0x23 489 #define PGM_PRIMARY_AUTHORITY 0x24 490 #define PGM_SECONDARY_AUTHORITY 0x25 491 #define PGM_LFX_TRANSLATION 0x26 492 #define PGM_LSX_TRANSLATION 0x27 493 #define PGM_ALET_SPECIFICATION 0x28 494 #define PGM_ALEN_TRANSLATION 0x29 495 #define PGM_ALE_SEQUENCE 0x2a 496 #define PGM_ASTE_VALIDITY 0x2b 497 #define PGM_ASTE_SEQUENCE 0x2c 498 #define PGM_EXTENDED_AUTHORITY 0x2d 499 #define PGM_LSTE_SEQUENCE 0x2e 500 #define PGM_ASTE_INSTANCE 0x2f 501 #define PGM_STACK_FULL 0x30 502 #define PGM_STACK_EMPTY 0x31 503 #define PGM_STACK_SPECIFICATION 0x32 504 #define PGM_STACK_TYPE 0x33 505 #define PGM_STACK_OPERATION 0x34 506 #define PGM_ASCE_TYPE 0x38 507 #define PGM_REGION_FIRST_TRANS 0x39 508 #define PGM_REGION_SECOND_TRANS 0x3a 509 #define PGM_REGION_THIRD_TRANS 0x3b 510 #define PGM_MONITOR 0x40 511 #define PGM_PER 0x80 512 #define PGM_CRYPTO_OPERATION 0x119 513 514 /* irq types in ascend order of priorities */ 515 enum irq_types { 516 IRQ_PEND_SET_PREFIX = 0, 517 IRQ_PEND_RESTART, 518 IRQ_PEND_SIGP_STOP, 519 IRQ_PEND_IO_ISC_7, 520 IRQ_PEND_IO_ISC_6, 521 IRQ_PEND_IO_ISC_5, 522 IRQ_PEND_IO_ISC_4, 523 IRQ_PEND_IO_ISC_3, 524 IRQ_PEND_IO_ISC_2, 525 IRQ_PEND_IO_ISC_1, 526 IRQ_PEND_IO_ISC_0, 527 IRQ_PEND_VIRTIO, 528 IRQ_PEND_PFAULT_DONE, 529 IRQ_PEND_PFAULT_INIT, 530 IRQ_PEND_EXT_HOST, 531 IRQ_PEND_EXT_SERVICE, 532 IRQ_PEND_EXT_SERVICE_EV, 533 IRQ_PEND_EXT_TIMING, 534 IRQ_PEND_EXT_CPU_TIMER, 535 IRQ_PEND_EXT_CLOCK_COMP, 536 IRQ_PEND_EXT_EXTERNAL, 537 IRQ_PEND_EXT_EMERGENCY, 538 IRQ_PEND_EXT_MALFUNC, 539 IRQ_PEND_EXT_IRQ_KEY, 540 IRQ_PEND_MCHK_REP, 541 IRQ_PEND_PROG, 542 IRQ_PEND_SVC, 543 IRQ_PEND_MCHK_EX, 544 IRQ_PEND_COUNT 545 }; 546 547 /* We have 2M for virtio device descriptor pages. Smallest amount of 548 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 549 */ 550 #define KVM_S390_MAX_VIRTIO_IRQS 87381 551 552 /* 553 * Repressible (non-floating) machine check interrupts 554 * subclass bits in MCIC 555 */ 556 #define MCHK_EXTD_BIT 58 557 #define MCHK_DEGR_BIT 56 558 #define MCHK_WARN_BIT 55 559 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 560 (1UL << MCHK_EXTD_BIT) | \ 561 (1UL << MCHK_WARN_BIT)) 562 563 /* Exigent machine check interrupts subclass bits in MCIC */ 564 #define MCHK_SD_BIT 63 565 #define MCHK_PD_BIT 62 566 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 567 568 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 569 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 570 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 571 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 572 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 573 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 574 (1UL << IRQ_PEND_EXT_TIMING) | \ 575 (1UL << IRQ_PEND_EXT_HOST) | \ 576 (1UL << IRQ_PEND_EXT_SERVICE) | \ 577 (1UL << IRQ_PEND_EXT_SERVICE_EV) | \ 578 (1UL << IRQ_PEND_VIRTIO) | \ 579 (1UL << IRQ_PEND_PFAULT_INIT) | \ 580 (1UL << IRQ_PEND_PFAULT_DONE)) 581 582 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 583 (1UL << IRQ_PEND_IO_ISC_1) | \ 584 (1UL << IRQ_PEND_IO_ISC_2) | \ 585 (1UL << IRQ_PEND_IO_ISC_3) | \ 586 (1UL << IRQ_PEND_IO_ISC_4) | \ 587 (1UL << IRQ_PEND_IO_ISC_5) | \ 588 (1UL << IRQ_PEND_IO_ISC_6) | \ 589 (1UL << IRQ_PEND_IO_ISC_7)) 590 591 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 592 (1UL << IRQ_PEND_MCHK_EX)) 593 594 #define IRQ_PEND_EXT_II_MASK ((1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 595 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 596 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 597 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 598 (1UL << IRQ_PEND_EXT_SERVICE) | \ 599 (1UL << IRQ_PEND_EXT_SERVICE_EV)) 600 601 struct kvm_s390_interrupt_info { 602 struct list_head list; 603 u64 type; 604 union { 605 struct kvm_s390_io_info io; 606 struct kvm_s390_ext_info ext; 607 struct kvm_s390_pgm_info pgm; 608 struct kvm_s390_emerg_info emerg; 609 struct kvm_s390_extcall_info extcall; 610 struct kvm_s390_prefix_info prefix; 611 struct kvm_s390_stop_info stop; 612 struct kvm_s390_mchk_info mchk; 613 }; 614 }; 615 616 struct kvm_s390_irq_payload { 617 struct kvm_s390_io_info io; 618 struct kvm_s390_ext_info ext; 619 struct kvm_s390_pgm_info pgm; 620 struct kvm_s390_emerg_info emerg; 621 struct kvm_s390_extcall_info extcall; 622 struct kvm_s390_prefix_info prefix; 623 struct kvm_s390_stop_info stop; 624 struct kvm_s390_mchk_info mchk; 625 }; 626 627 struct kvm_s390_local_interrupt { 628 spinlock_t lock; 629 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 630 struct kvm_s390_irq_payload irq; 631 unsigned long pending_irqs; 632 }; 633 634 #define FIRQ_LIST_IO_ISC_0 0 635 #define FIRQ_LIST_IO_ISC_1 1 636 #define FIRQ_LIST_IO_ISC_2 2 637 #define FIRQ_LIST_IO_ISC_3 3 638 #define FIRQ_LIST_IO_ISC_4 4 639 #define FIRQ_LIST_IO_ISC_5 5 640 #define FIRQ_LIST_IO_ISC_6 6 641 #define FIRQ_LIST_IO_ISC_7 7 642 #define FIRQ_LIST_PFAULT 8 643 #define FIRQ_LIST_VIRTIO 9 644 #define FIRQ_LIST_COUNT 10 645 #define FIRQ_CNTR_IO 0 646 #define FIRQ_CNTR_SERVICE 1 647 #define FIRQ_CNTR_VIRTIO 2 648 #define FIRQ_CNTR_PFAULT 3 649 #define FIRQ_MAX_COUNT 4 650 651 /* mask the AIS mode for a given ISC */ 652 #define AIS_MODE_MASK(isc) (0x80 >> isc) 653 654 #define KVM_S390_AIS_MODE_ALL 0 655 #define KVM_S390_AIS_MODE_SINGLE 1 656 657 struct kvm_s390_float_interrupt { 658 unsigned long pending_irqs; 659 unsigned long masked_irqs; 660 spinlock_t lock; 661 struct list_head lists[FIRQ_LIST_COUNT]; 662 int counters[FIRQ_MAX_COUNT]; 663 struct kvm_s390_mchk_info mchk; 664 struct kvm_s390_ext_info srv_signal; 665 int next_rr_cpu; 666 struct mutex ais_lock; 667 u8 simm; 668 u8 nimm; 669 }; 670 671 struct kvm_hw_wp_info_arch { 672 unsigned long addr; 673 unsigned long phys_addr; 674 int len; 675 char *old_data; 676 }; 677 678 struct kvm_hw_bp_info_arch { 679 unsigned long addr; 680 int len; 681 }; 682 683 /* 684 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 685 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 686 * arch/s390/include/uapi/asm/kvm.h 687 */ 688 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 689 690 #define guestdbg_enabled(vcpu) \ 691 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 692 #define guestdbg_sstep_enabled(vcpu) \ 693 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 694 #define guestdbg_hw_bp_enabled(vcpu) \ 695 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 696 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 697 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 698 699 #define KVM_GUESTDBG_VALID_MASK \ 700 (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP |\ 701 KVM_GUESTDBG_USE_HW_BP | KVM_GUESTDBG_EXIT_PENDING) 702 703 struct kvm_guestdbg_info_arch { 704 unsigned long cr0; 705 unsigned long cr9; 706 unsigned long cr10; 707 unsigned long cr11; 708 struct kvm_hw_bp_info_arch *hw_bp_info; 709 struct kvm_hw_wp_info_arch *hw_wp_info; 710 int nr_hw_bp; 711 int nr_hw_wp; 712 unsigned long last_bp; 713 }; 714 715 struct kvm_s390_pv_vcpu { 716 u64 handle; 717 unsigned long stor_base; 718 }; 719 720 struct kvm_vcpu_arch { 721 struct kvm_s390_sie_block *sie_block; 722 /* if vsie is active, currently executed shadow sie control block */ 723 struct kvm_s390_sie_block *vsie_block; 724 unsigned int host_acrs[NUM_ACRS]; 725 struct gs_cb *host_gscb; 726 struct fpu host_fpregs; 727 struct kvm_s390_local_interrupt local_int; 728 struct hrtimer ckc_timer; 729 struct kvm_s390_pgm_info pgm; 730 struct gmap *gmap; 731 /* backup location for the currently enabled gmap when scheduled out */ 732 struct gmap *enabled_gmap; 733 struct kvm_guestdbg_info_arch guestdbg; 734 unsigned long pfault_token; 735 unsigned long pfault_select; 736 unsigned long pfault_compare; 737 bool cputm_enabled; 738 /* 739 * The seqcount protects updates to cputm_start and sie_block.cputm, 740 * this way we can have non-blocking reads with consistent values. 741 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 742 * values and to start/stop/enable/disable cpu timer accounting. 743 */ 744 seqcount_t cputm_seqcount; 745 __u64 cputm_start; 746 bool gs_enabled; 747 bool skey_enabled; 748 struct kvm_s390_pv_vcpu pv; 749 union diag318_info diag318_info; 750 }; 751 752 struct kvm_vm_stat { 753 struct kvm_vm_stat_generic generic; 754 u64 inject_io; 755 u64 inject_float_mchk; 756 u64 inject_pfault_done; 757 u64 inject_service_signal; 758 u64 inject_virtio; 759 }; 760 761 struct kvm_arch_memory_slot { 762 }; 763 764 struct s390_map_info { 765 struct list_head list; 766 __u64 guest_addr; 767 __u64 addr; 768 struct page *page; 769 }; 770 771 struct s390_io_adapter { 772 unsigned int id; 773 int isc; 774 bool maskable; 775 bool masked; 776 bool swap; 777 bool suppressible; 778 }; 779 780 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 781 #define MAX_S390_ADAPTER_MAPS 256 782 783 /* maximum size of facilities and facility mask is 2k bytes */ 784 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 785 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 786 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 787 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 788 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 789 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 790 791 struct kvm_s390_cpu_model { 792 /* facility mask supported by kvm & hosting machine */ 793 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 794 struct kvm_s390_vm_cpu_subfunc subfuncs; 795 /* facility list requested by guest (in dma page) */ 796 __u64 *fac_list; 797 u64 cpuid; 798 unsigned short ibc; 799 }; 800 801 struct kvm_s390_module_hook { 802 int (*hook)(struct kvm_vcpu *vcpu); 803 struct module *owner; 804 }; 805 806 struct kvm_s390_crypto { 807 struct kvm_s390_crypto_cb *crycb; 808 struct kvm_s390_module_hook *pqap_hook; 809 __u32 crycbd; 810 __u8 aes_kw; 811 __u8 dea_kw; 812 __u8 apie; 813 }; 814 815 #define APCB0_MASK_SIZE 1 816 struct kvm_s390_apcb0 { 817 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */ 818 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */ 819 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */ 820 __u64 reserved18; /* 0x0018 */ 821 }; 822 823 #define APCB1_MASK_SIZE 4 824 struct kvm_s390_apcb1 { 825 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */ 826 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */ 827 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */ 828 __u64 reserved60[4]; /* 0x0060 */ 829 }; 830 831 struct kvm_s390_crypto_cb { 832 struct kvm_s390_apcb0 apcb0; /* 0x0000 */ 833 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */ 834 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 835 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 836 struct kvm_s390_apcb1 apcb1; /* 0x0080 */ 837 }; 838 839 struct kvm_s390_gisa { 840 union { 841 struct { /* common to all formats */ 842 u32 next_alert; 843 u8 ipm; 844 u8 reserved01[2]; 845 u8 iam; 846 }; 847 struct { /* format 0 */ 848 u32 next_alert; 849 u8 ipm; 850 u8 reserved01; 851 u8 : 6; 852 u8 g : 1; 853 u8 c : 1; 854 u8 iam; 855 u8 reserved02[4]; 856 u32 airq_count; 857 } g0; 858 struct { /* format 1 */ 859 u32 next_alert; 860 u8 ipm; 861 u8 simm; 862 u8 nimm; 863 u8 iam; 864 u8 aism[8]; 865 u8 : 6; 866 u8 g : 1; 867 u8 c : 1; 868 u8 reserved03[11]; 869 u32 airq_count; 870 } g1; 871 struct { 872 u64 word[4]; 873 } u64; 874 }; 875 }; 876 877 struct kvm_s390_gib { 878 u32 alert_list_origin; 879 u32 reserved01; 880 u8:5; 881 u8 nisc:3; 882 u8 reserved03[3]; 883 u32 reserved04[5]; 884 }; 885 886 /* 887 * sie_page2 has to be allocated as DMA because fac_list, crycb and 888 * gisa need 31bit addresses in the sie control block. 889 */ 890 struct sie_page2 { 891 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 892 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 893 struct kvm_s390_gisa gisa; /* 0x0900 */ 894 struct kvm *kvm; /* 0x0920 */ 895 u8 reserved928[0x1000 - 0x928]; /* 0x0928 */ 896 }; 897 898 struct kvm_s390_vsie { 899 struct mutex mutex; 900 struct radix_tree_root addr_to_page; 901 int page_count; 902 int next; 903 struct page *pages[KVM_MAX_VCPUS]; 904 }; 905 906 struct kvm_s390_gisa_iam { 907 u8 mask; 908 spinlock_t ref_lock; 909 u32 ref_count[MAX_ISC + 1]; 910 }; 911 912 struct kvm_s390_gisa_interrupt { 913 struct kvm_s390_gisa *origin; 914 struct kvm_s390_gisa_iam alert; 915 struct hrtimer timer; 916 u64 expires; 917 DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS); 918 }; 919 920 struct kvm_s390_pv { 921 u64 handle; 922 u64 guest_len; 923 unsigned long stor_base; 924 void *stor_var; 925 }; 926 927 struct kvm_arch{ 928 void *sca; 929 int use_esca; 930 rwlock_t sca_lock; 931 debug_info_t *dbf; 932 struct kvm_s390_float_interrupt float_int; 933 struct kvm_device *flic; 934 struct gmap *gmap; 935 unsigned long mem_limit; 936 int css_support; 937 int use_irqchip; 938 int use_cmma; 939 int use_pfmfi; 940 int use_skf; 941 int user_cpu_state_ctrl; 942 int user_sigp; 943 int user_stsi; 944 int user_instr0; 945 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 946 wait_queue_head_t ipte_wq; 947 int ipte_lock_count; 948 struct mutex ipte_mutex; 949 spinlock_t start_stop_lock; 950 struct sie_page2 *sie_page2; 951 struct kvm_s390_cpu_model model; 952 struct kvm_s390_crypto crypto; 953 struct kvm_s390_vsie vsie; 954 u8 epdx; 955 u64 epoch; 956 int migration_mode; 957 atomic64_t cmma_dirty_pages; 958 /* subset of available cpu features enabled by user space */ 959 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 960 DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS); 961 struct kvm_s390_gisa_interrupt gisa_int; 962 struct kvm_s390_pv pv; 963 }; 964 965 #define KVM_HVA_ERR_BAD (-1UL) 966 #define KVM_HVA_ERR_RO_BAD (-2UL) 967 968 static inline bool kvm_is_error_hva(unsigned long addr) 969 { 970 return IS_ERR_VALUE(addr); 971 } 972 973 #define ASYNC_PF_PER_VCPU 64 974 struct kvm_arch_async_pf { 975 unsigned long pfault_token; 976 }; 977 978 bool kvm_arch_can_dequeue_async_page_present(struct kvm_vcpu *vcpu); 979 980 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 981 struct kvm_async_pf *work); 982 983 bool kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 984 struct kvm_async_pf *work); 985 986 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 987 struct kvm_async_pf *work); 988 989 static inline void kvm_arch_async_page_present_queued(struct kvm_vcpu *vcpu) {} 990 991 void kvm_arch_crypto_clear_masks(struct kvm *kvm); 992 void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm, 993 unsigned long *aqm, unsigned long *adm); 994 995 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 996 extern char sie_exit; 997 998 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc); 999 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc); 1000 1001 static inline void kvm_arch_hardware_disable(void) {} 1002 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 1003 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 1004 static inline void kvm_arch_free_memslot(struct kvm *kvm, 1005 struct kvm_memory_slot *slot) {} 1006 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 1007 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 1008 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 1009 struct kvm_memory_slot *slot) {} 1010 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 1011 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 1012 1013 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 1014 1015 #endif 1016