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 <asm/debug.h> 22 #include <asm/cpu.h> 23 #include <asm/fpu/api.h> 24 #include <asm/isc.h> 25 #include <asm/guarded_storage.h> 26 27 #define KVM_S390_BSCA_CPU_SLOTS 64 28 #define KVM_S390_ESCA_CPU_SLOTS 248 29 #define KVM_MAX_VCPUS 255 30 #define KVM_USER_MEM_SLOTS 32 31 32 /* 33 * These seem to be used for allocating ->chip in the routing table, 34 * which we don't use. 4096 is an out-of-thin-air value. If we need 35 * 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 4096 39 #define KVM_HALT_POLL_NS_DEFAULT 80000 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 CPUSTAT_STOPPED 0x80000000 125 #define CPUSTAT_WAIT 0x10000000 126 #define CPUSTAT_ECALL_PEND 0x08000000 127 #define CPUSTAT_STOP_INT 0x04000000 128 #define CPUSTAT_IO_INT 0x02000000 129 #define CPUSTAT_EXT_INT 0x01000000 130 #define CPUSTAT_RUNNING 0x00800000 131 #define CPUSTAT_RETAINED 0x00400000 132 #define CPUSTAT_TIMING_SUB 0x00020000 133 #define CPUSTAT_SIE_SUB 0x00010000 134 #define CPUSTAT_RRF 0x00008000 135 #define CPUSTAT_SLSV 0x00004000 136 #define CPUSTAT_SLSR 0x00002000 137 #define CPUSTAT_ZARCH 0x00000800 138 #define CPUSTAT_MCDS 0x00000100 139 #define CPUSTAT_KSS 0x00000200 140 #define CPUSTAT_SM 0x00000080 141 #define CPUSTAT_IBS 0x00000040 142 #define CPUSTAT_GED2 0x00000010 143 #define CPUSTAT_G 0x00000008 144 #define CPUSTAT_GED 0x00000004 145 #define CPUSTAT_J 0x00000002 146 #define CPUSTAT_P 0x00000001 147 148 struct kvm_s390_sie_block { 149 atomic_t cpuflags; /* 0x0000 */ 150 __u32 : 1; /* 0x0004 */ 151 __u32 prefix : 18; 152 __u32 : 1; 153 __u32 ibc : 12; 154 __u8 reserved08[4]; /* 0x0008 */ 155 #define PROG_IN_SIE (1<<0) 156 __u32 prog0c; /* 0x000c */ 157 __u8 reserved10[16]; /* 0x0010 */ 158 #define PROG_BLOCK_SIE (1<<0) 159 #define PROG_REQUEST (1<<1) 160 atomic_t prog20; /* 0x0020 */ 161 __u8 reserved24[4]; /* 0x0024 */ 162 __u64 cputm; /* 0x0028 */ 163 __u64 ckc; /* 0x0030 */ 164 __u64 epoch; /* 0x0038 */ 165 __u32 svcc; /* 0x0040 */ 166 #define LCTL_CR0 0x8000 167 #define LCTL_CR6 0x0200 168 #define LCTL_CR9 0x0040 169 #define LCTL_CR10 0x0020 170 #define LCTL_CR11 0x0010 171 #define LCTL_CR14 0x0002 172 __u16 lctl; /* 0x0044 */ 173 __s16 icpua; /* 0x0046 */ 174 #define ICTL_OPEREXC 0x80000000 175 #define ICTL_PINT 0x20000000 176 #define ICTL_LPSW 0x00400000 177 #define ICTL_STCTL 0x00040000 178 #define ICTL_ISKE 0x00004000 179 #define ICTL_SSKE 0x00002000 180 #define ICTL_RRBE 0x00001000 181 #define ICTL_TPROT 0x00000200 182 __u32 ictl; /* 0x0048 */ 183 #define ECA_CEI 0x80000000 184 #define ECA_IB 0x40000000 185 #define ECA_SIGPI 0x10000000 186 #define ECA_MVPGI 0x01000000 187 #define ECA_AIV 0x00200000 188 #define ECA_VX 0x00020000 189 #define ECA_PROTEXCI 0x00002000 190 #define ECA_APIE 0x00000008 191 #define ECA_SII 0x00000001 192 __u32 eca; /* 0x004c */ 193 #define ICPT_INST 0x04 194 #define ICPT_PROGI 0x08 195 #define ICPT_INSTPROGI 0x0C 196 #define ICPT_EXTREQ 0x10 197 #define ICPT_EXTINT 0x14 198 #define ICPT_IOREQ 0x18 199 #define ICPT_WAIT 0x1c 200 #define ICPT_VALIDITY 0x20 201 #define ICPT_STOP 0x28 202 #define ICPT_OPEREXC 0x2C 203 #define ICPT_PARTEXEC 0x38 204 #define ICPT_IOINST 0x40 205 #define ICPT_KSS 0x5c 206 __u8 icptcode; /* 0x0050 */ 207 __u8 icptstatus; /* 0x0051 */ 208 __u16 ihcpu; /* 0x0052 */ 209 __u8 reserved54[2]; /* 0x0054 */ 210 __u16 ipa; /* 0x0056 */ 211 __u32 ipb; /* 0x0058 */ 212 __u32 scaoh; /* 0x005c */ 213 #define FPF_BPBC 0x20 214 __u8 fpf; /* 0x0060 */ 215 #define ECB_GS 0x40 216 #define ECB_TE 0x10 217 #define ECB_SRSI 0x04 218 #define ECB_HOSTPROTINT 0x02 219 __u8 ecb; /* 0x0061 */ 220 #define ECB2_CMMA 0x80 221 #define ECB2_IEP 0x20 222 #define ECB2_PFMFI 0x08 223 #define ECB2_ESCA 0x04 224 __u8 ecb2; /* 0x0062 */ 225 #define ECB3_DEA 0x08 226 #define ECB3_AES 0x04 227 #define ECB3_RI 0x01 228 __u8 ecb3; /* 0x0063 */ 229 __u32 scaol; /* 0x0064 */ 230 __u8 reserved68; /* 0x0068 */ 231 __u8 epdx; /* 0x0069 */ 232 __u8 reserved6a[2]; /* 0x006a */ 233 __u32 todpr; /* 0x006c */ 234 #define GISA_FORMAT1 0x00000001 235 __u32 gd; /* 0x0070 */ 236 __u8 reserved74[12]; /* 0x0074 */ 237 __u64 mso; /* 0x0080 */ 238 __u64 msl; /* 0x0088 */ 239 psw_t gpsw; /* 0x0090 */ 240 __u64 gg14; /* 0x00a0 */ 241 __u64 gg15; /* 0x00a8 */ 242 __u8 reservedb0[8]; /* 0x00b0 */ 243 #define HPID_KVM 0x4 244 #define HPID_VSIE 0x5 245 __u8 hpid; /* 0x00b8 */ 246 __u8 reservedb9[11]; /* 0x00b9 */ 247 __u16 extcpuaddr; /* 0x00c4 */ 248 __u16 eic; /* 0x00c6 */ 249 __u32 reservedc8; /* 0x00c8 */ 250 __u16 pgmilc; /* 0x00cc */ 251 __u16 iprcc; /* 0x00ce */ 252 __u32 dxc; /* 0x00d0 */ 253 __u16 mcn; /* 0x00d4 */ 254 __u8 perc; /* 0x00d6 */ 255 __u8 peratmid; /* 0x00d7 */ 256 __u64 peraddr; /* 0x00d8 */ 257 __u8 eai; /* 0x00e0 */ 258 __u8 peraid; /* 0x00e1 */ 259 __u8 oai; /* 0x00e2 */ 260 __u8 armid; /* 0x00e3 */ 261 __u8 reservede4[4]; /* 0x00e4 */ 262 __u64 tecmc; /* 0x00e8 */ 263 __u8 reservedf0[12]; /* 0x00f0 */ 264 #define CRYCB_FORMAT_MASK 0x00000003 265 #define CRYCB_FORMAT0 0x00000000 266 #define CRYCB_FORMAT1 0x00000001 267 #define CRYCB_FORMAT2 0x00000003 268 __u32 crycbd; /* 0x00fc */ 269 __u64 gcr[16]; /* 0x0100 */ 270 __u64 gbea; /* 0x0180 */ 271 __u8 reserved188[8]; /* 0x0188 */ 272 __u64 sdnxo; /* 0x0190 */ 273 __u8 reserved198[8]; /* 0x0198 */ 274 __u32 fac; /* 0x01a0 */ 275 __u8 reserved1a4[20]; /* 0x01a4 */ 276 __u64 cbrlo; /* 0x01b8 */ 277 __u8 reserved1c0[8]; /* 0x01c0 */ 278 #define ECD_HOSTREGMGMT 0x20000000 279 #define ECD_MEF 0x08000000 280 #define ECD_ETOKENF 0x02000000 281 __u32 ecd; /* 0x01c8 */ 282 __u8 reserved1cc[18]; /* 0x01cc */ 283 __u64 pp; /* 0x01de */ 284 __u8 reserved1e6[2]; /* 0x01e6 */ 285 __u64 itdba; /* 0x01e8 */ 286 __u64 riccbd; /* 0x01f0 */ 287 __u64 gvrd; /* 0x01f8 */ 288 } __attribute__((packed)); 289 290 struct kvm_s390_itdb { 291 __u8 data[256]; 292 }; 293 294 struct sie_page { 295 struct kvm_s390_sie_block sie_block; 296 struct mcck_volatile_info mcck_info; /* 0x0200 */ 297 __u8 reserved218[1000]; /* 0x0218 */ 298 struct kvm_s390_itdb itdb; /* 0x0600 */ 299 __u8 reserved700[2304]; /* 0x0700 */ 300 }; 301 302 struct kvm_vcpu_stat { 303 u64 exit_userspace; 304 u64 exit_null; 305 u64 exit_external_request; 306 u64 exit_io_request; 307 u64 exit_external_interrupt; 308 u64 exit_stop_request; 309 u64 exit_validity; 310 u64 exit_instruction; 311 u64 exit_pei; 312 u64 halt_successful_poll; 313 u64 halt_attempted_poll; 314 u64 halt_poll_invalid; 315 u64 halt_wakeup; 316 u64 instruction_lctl; 317 u64 instruction_lctlg; 318 u64 instruction_stctl; 319 u64 instruction_stctg; 320 u64 exit_program_interruption; 321 u64 exit_instr_and_program; 322 u64 exit_operation_exception; 323 u64 deliver_ckc; 324 u64 deliver_cputm; 325 u64 deliver_external_call; 326 u64 deliver_emergency_signal; 327 u64 deliver_service_signal; 328 u64 deliver_virtio; 329 u64 deliver_stop_signal; 330 u64 deliver_prefix_signal; 331 u64 deliver_restart_signal; 332 u64 deliver_program; 333 u64 deliver_io; 334 u64 deliver_machine_check; 335 u64 exit_wait_state; 336 u64 inject_ckc; 337 u64 inject_cputm; 338 u64 inject_external_call; 339 u64 inject_emergency_signal; 340 u64 inject_mchk; 341 u64 inject_pfault_init; 342 u64 inject_program; 343 u64 inject_restart; 344 u64 inject_set_prefix; 345 u64 inject_stop_signal; 346 u64 instruction_epsw; 347 u64 instruction_gs; 348 u64 instruction_io_other; 349 u64 instruction_lpsw; 350 u64 instruction_lpswe; 351 u64 instruction_pfmf; 352 u64 instruction_ptff; 353 u64 instruction_sck; 354 u64 instruction_sckpf; 355 u64 instruction_stidp; 356 u64 instruction_spx; 357 u64 instruction_stpx; 358 u64 instruction_stap; 359 u64 instruction_iske; 360 u64 instruction_ri; 361 u64 instruction_rrbe; 362 u64 instruction_sske; 363 u64 instruction_ipte_interlock; 364 u64 instruction_stsi; 365 u64 instruction_stfl; 366 u64 instruction_tb; 367 u64 instruction_tpi; 368 u64 instruction_tprot; 369 u64 instruction_tsch; 370 u64 instruction_sie; 371 u64 instruction_essa; 372 u64 instruction_sthyi; 373 u64 instruction_sigp_sense; 374 u64 instruction_sigp_sense_running; 375 u64 instruction_sigp_external_call; 376 u64 instruction_sigp_emergency; 377 u64 instruction_sigp_cond_emergency; 378 u64 instruction_sigp_start; 379 u64 instruction_sigp_stop; 380 u64 instruction_sigp_stop_store_status; 381 u64 instruction_sigp_store_status; 382 u64 instruction_sigp_store_adtl_status; 383 u64 instruction_sigp_arch; 384 u64 instruction_sigp_prefix; 385 u64 instruction_sigp_restart; 386 u64 instruction_sigp_init_cpu_reset; 387 u64 instruction_sigp_cpu_reset; 388 u64 instruction_sigp_unknown; 389 u64 diagnose_10; 390 u64 diagnose_44; 391 u64 diagnose_9c; 392 u64 diagnose_258; 393 u64 diagnose_308; 394 u64 diagnose_500; 395 u64 diagnose_other; 396 }; 397 398 #define PGM_OPERATION 0x01 399 #define PGM_PRIVILEGED_OP 0x02 400 #define PGM_EXECUTE 0x03 401 #define PGM_PROTECTION 0x04 402 #define PGM_ADDRESSING 0x05 403 #define PGM_SPECIFICATION 0x06 404 #define PGM_DATA 0x07 405 #define PGM_FIXED_POINT_OVERFLOW 0x08 406 #define PGM_FIXED_POINT_DIVIDE 0x09 407 #define PGM_DECIMAL_OVERFLOW 0x0a 408 #define PGM_DECIMAL_DIVIDE 0x0b 409 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 410 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 411 #define PGM_HFP_SIGNIFICANCE 0x0e 412 #define PGM_HFP_DIVIDE 0x0f 413 #define PGM_SEGMENT_TRANSLATION 0x10 414 #define PGM_PAGE_TRANSLATION 0x11 415 #define PGM_TRANSLATION_SPEC 0x12 416 #define PGM_SPECIAL_OPERATION 0x13 417 #define PGM_OPERAND 0x15 418 #define PGM_TRACE_TABEL 0x16 419 #define PGM_VECTOR_PROCESSING 0x1b 420 #define PGM_SPACE_SWITCH 0x1c 421 #define PGM_HFP_SQUARE_ROOT 0x1d 422 #define PGM_PC_TRANSLATION_SPEC 0x1f 423 #define PGM_AFX_TRANSLATION 0x20 424 #define PGM_ASX_TRANSLATION 0x21 425 #define PGM_LX_TRANSLATION 0x22 426 #define PGM_EX_TRANSLATION 0x23 427 #define PGM_PRIMARY_AUTHORITY 0x24 428 #define PGM_SECONDARY_AUTHORITY 0x25 429 #define PGM_LFX_TRANSLATION 0x26 430 #define PGM_LSX_TRANSLATION 0x27 431 #define PGM_ALET_SPECIFICATION 0x28 432 #define PGM_ALEN_TRANSLATION 0x29 433 #define PGM_ALE_SEQUENCE 0x2a 434 #define PGM_ASTE_VALIDITY 0x2b 435 #define PGM_ASTE_SEQUENCE 0x2c 436 #define PGM_EXTENDED_AUTHORITY 0x2d 437 #define PGM_LSTE_SEQUENCE 0x2e 438 #define PGM_ASTE_INSTANCE 0x2f 439 #define PGM_STACK_FULL 0x30 440 #define PGM_STACK_EMPTY 0x31 441 #define PGM_STACK_SPECIFICATION 0x32 442 #define PGM_STACK_TYPE 0x33 443 #define PGM_STACK_OPERATION 0x34 444 #define PGM_ASCE_TYPE 0x38 445 #define PGM_REGION_FIRST_TRANS 0x39 446 #define PGM_REGION_SECOND_TRANS 0x3a 447 #define PGM_REGION_THIRD_TRANS 0x3b 448 #define PGM_MONITOR 0x40 449 #define PGM_PER 0x80 450 #define PGM_CRYPTO_OPERATION 0x119 451 452 /* irq types in ascend order of priorities */ 453 enum irq_types { 454 IRQ_PEND_SET_PREFIX = 0, 455 IRQ_PEND_RESTART, 456 IRQ_PEND_SIGP_STOP, 457 IRQ_PEND_IO_ISC_7, 458 IRQ_PEND_IO_ISC_6, 459 IRQ_PEND_IO_ISC_5, 460 IRQ_PEND_IO_ISC_4, 461 IRQ_PEND_IO_ISC_3, 462 IRQ_PEND_IO_ISC_2, 463 IRQ_PEND_IO_ISC_1, 464 IRQ_PEND_IO_ISC_0, 465 IRQ_PEND_VIRTIO, 466 IRQ_PEND_PFAULT_DONE, 467 IRQ_PEND_PFAULT_INIT, 468 IRQ_PEND_EXT_HOST, 469 IRQ_PEND_EXT_SERVICE, 470 IRQ_PEND_EXT_TIMING, 471 IRQ_PEND_EXT_CPU_TIMER, 472 IRQ_PEND_EXT_CLOCK_COMP, 473 IRQ_PEND_EXT_EXTERNAL, 474 IRQ_PEND_EXT_EMERGENCY, 475 IRQ_PEND_EXT_MALFUNC, 476 IRQ_PEND_EXT_IRQ_KEY, 477 IRQ_PEND_MCHK_REP, 478 IRQ_PEND_PROG, 479 IRQ_PEND_SVC, 480 IRQ_PEND_MCHK_EX, 481 IRQ_PEND_COUNT 482 }; 483 484 /* We have 2M for virtio device descriptor pages. Smallest amount of 485 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 486 */ 487 #define KVM_S390_MAX_VIRTIO_IRQS 87381 488 489 /* 490 * Repressible (non-floating) machine check interrupts 491 * subclass bits in MCIC 492 */ 493 #define MCHK_EXTD_BIT 58 494 #define MCHK_DEGR_BIT 56 495 #define MCHK_WARN_BIT 55 496 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 497 (1UL << MCHK_EXTD_BIT) | \ 498 (1UL << MCHK_WARN_BIT)) 499 500 /* Exigent machine check interrupts subclass bits in MCIC */ 501 #define MCHK_SD_BIT 63 502 #define MCHK_PD_BIT 62 503 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 504 505 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 506 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 507 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 508 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 509 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 510 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 511 (1UL << IRQ_PEND_EXT_TIMING) | \ 512 (1UL << IRQ_PEND_EXT_HOST) | \ 513 (1UL << IRQ_PEND_EXT_SERVICE) | \ 514 (1UL << IRQ_PEND_VIRTIO) | \ 515 (1UL << IRQ_PEND_PFAULT_INIT) | \ 516 (1UL << IRQ_PEND_PFAULT_DONE)) 517 518 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 519 (1UL << IRQ_PEND_IO_ISC_1) | \ 520 (1UL << IRQ_PEND_IO_ISC_2) | \ 521 (1UL << IRQ_PEND_IO_ISC_3) | \ 522 (1UL << IRQ_PEND_IO_ISC_4) | \ 523 (1UL << IRQ_PEND_IO_ISC_5) | \ 524 (1UL << IRQ_PEND_IO_ISC_6) | \ 525 (1UL << IRQ_PEND_IO_ISC_7)) 526 527 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 528 (1UL << IRQ_PEND_MCHK_EX)) 529 530 struct kvm_s390_interrupt_info { 531 struct list_head list; 532 u64 type; 533 union { 534 struct kvm_s390_io_info io; 535 struct kvm_s390_ext_info ext; 536 struct kvm_s390_pgm_info pgm; 537 struct kvm_s390_emerg_info emerg; 538 struct kvm_s390_extcall_info extcall; 539 struct kvm_s390_prefix_info prefix; 540 struct kvm_s390_stop_info stop; 541 struct kvm_s390_mchk_info mchk; 542 }; 543 }; 544 545 struct kvm_s390_irq_payload { 546 struct kvm_s390_io_info io; 547 struct kvm_s390_ext_info ext; 548 struct kvm_s390_pgm_info pgm; 549 struct kvm_s390_emerg_info emerg; 550 struct kvm_s390_extcall_info extcall; 551 struct kvm_s390_prefix_info prefix; 552 struct kvm_s390_stop_info stop; 553 struct kvm_s390_mchk_info mchk; 554 }; 555 556 struct kvm_s390_local_interrupt { 557 spinlock_t lock; 558 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 559 struct kvm_s390_irq_payload irq; 560 unsigned long pending_irqs; 561 }; 562 563 #define FIRQ_LIST_IO_ISC_0 0 564 #define FIRQ_LIST_IO_ISC_1 1 565 #define FIRQ_LIST_IO_ISC_2 2 566 #define FIRQ_LIST_IO_ISC_3 3 567 #define FIRQ_LIST_IO_ISC_4 4 568 #define FIRQ_LIST_IO_ISC_5 5 569 #define FIRQ_LIST_IO_ISC_6 6 570 #define FIRQ_LIST_IO_ISC_7 7 571 #define FIRQ_LIST_PFAULT 8 572 #define FIRQ_LIST_VIRTIO 9 573 #define FIRQ_LIST_COUNT 10 574 #define FIRQ_CNTR_IO 0 575 #define FIRQ_CNTR_SERVICE 1 576 #define FIRQ_CNTR_VIRTIO 2 577 #define FIRQ_CNTR_PFAULT 3 578 #define FIRQ_MAX_COUNT 4 579 580 /* mask the AIS mode for a given ISC */ 581 #define AIS_MODE_MASK(isc) (0x80 >> isc) 582 583 #define KVM_S390_AIS_MODE_ALL 0 584 #define KVM_S390_AIS_MODE_SINGLE 1 585 586 struct kvm_s390_float_interrupt { 587 unsigned long pending_irqs; 588 spinlock_t lock; 589 struct list_head lists[FIRQ_LIST_COUNT]; 590 int counters[FIRQ_MAX_COUNT]; 591 struct kvm_s390_mchk_info mchk; 592 struct kvm_s390_ext_info srv_signal; 593 int next_rr_cpu; 594 struct mutex ais_lock; 595 u8 simm; 596 u8 nimm; 597 }; 598 599 struct kvm_hw_wp_info_arch { 600 unsigned long addr; 601 unsigned long phys_addr; 602 int len; 603 char *old_data; 604 }; 605 606 struct kvm_hw_bp_info_arch { 607 unsigned long addr; 608 int len; 609 }; 610 611 /* 612 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 613 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 614 * arch/s390/include/uapi/asm/kvm.h 615 */ 616 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 617 618 #define guestdbg_enabled(vcpu) \ 619 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 620 #define guestdbg_sstep_enabled(vcpu) \ 621 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 622 #define guestdbg_hw_bp_enabled(vcpu) \ 623 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 624 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 625 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 626 627 struct kvm_guestdbg_info_arch { 628 unsigned long cr0; 629 unsigned long cr9; 630 unsigned long cr10; 631 unsigned long cr11; 632 struct kvm_hw_bp_info_arch *hw_bp_info; 633 struct kvm_hw_wp_info_arch *hw_wp_info; 634 int nr_hw_bp; 635 int nr_hw_wp; 636 unsigned long last_bp; 637 }; 638 639 struct kvm_vcpu_arch { 640 struct kvm_s390_sie_block *sie_block; 641 /* if vsie is active, currently executed shadow sie control block */ 642 struct kvm_s390_sie_block *vsie_block; 643 unsigned int host_acrs[NUM_ACRS]; 644 struct gs_cb *host_gscb; 645 struct fpu host_fpregs; 646 struct kvm_s390_local_interrupt local_int; 647 struct hrtimer ckc_timer; 648 struct kvm_s390_pgm_info pgm; 649 struct gmap *gmap; 650 /* backup location for the currently enabled gmap when scheduled out */ 651 struct gmap *enabled_gmap; 652 struct kvm_guestdbg_info_arch guestdbg; 653 unsigned long pfault_token; 654 unsigned long pfault_select; 655 unsigned long pfault_compare; 656 bool cputm_enabled; 657 /* 658 * The seqcount protects updates to cputm_start and sie_block.cputm, 659 * this way we can have non-blocking reads with consistent values. 660 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 661 * values and to start/stop/enable/disable cpu timer accounting. 662 */ 663 seqcount_t cputm_seqcount; 664 __u64 cputm_start; 665 bool gs_enabled; 666 bool skey_enabled; 667 }; 668 669 struct kvm_vm_stat { 670 u64 inject_io; 671 u64 inject_float_mchk; 672 u64 inject_pfault_done; 673 u64 inject_service_signal; 674 u64 inject_virtio; 675 u64 remote_tlb_flush; 676 }; 677 678 struct kvm_arch_memory_slot { 679 }; 680 681 struct s390_map_info { 682 struct list_head list; 683 __u64 guest_addr; 684 __u64 addr; 685 struct page *page; 686 }; 687 688 struct s390_io_adapter { 689 unsigned int id; 690 int isc; 691 bool maskable; 692 bool masked; 693 bool swap; 694 bool suppressible; 695 struct rw_semaphore maps_lock; 696 struct list_head maps; 697 atomic_t nr_maps; 698 }; 699 700 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 701 #define MAX_S390_ADAPTER_MAPS 256 702 703 /* maximum size of facilities and facility mask is 2k bytes */ 704 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 705 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 706 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 707 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 708 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 709 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 710 711 struct kvm_s390_cpu_model { 712 /* facility mask supported by kvm & hosting machine */ 713 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 714 struct kvm_s390_vm_cpu_subfunc subfuncs; 715 /* facility list requested by guest (in dma page) */ 716 __u64 *fac_list; 717 u64 cpuid; 718 unsigned short ibc; 719 }; 720 721 struct kvm_s390_crypto { 722 struct kvm_s390_crypto_cb *crycb; 723 __u32 crycbd; 724 __u8 aes_kw; 725 __u8 dea_kw; 726 __u8 apie; 727 }; 728 729 #define APCB0_MASK_SIZE 1 730 struct kvm_s390_apcb0 { 731 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */ 732 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */ 733 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */ 734 __u64 reserved18; /* 0x0018 */ 735 }; 736 737 #define APCB1_MASK_SIZE 4 738 struct kvm_s390_apcb1 { 739 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */ 740 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */ 741 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */ 742 __u64 reserved60[4]; /* 0x0060 */ 743 }; 744 745 struct kvm_s390_crypto_cb { 746 struct kvm_s390_apcb0 apcb0; /* 0x0000 */ 747 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */ 748 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 749 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 750 struct kvm_s390_apcb1 apcb1; /* 0x0080 */ 751 }; 752 753 struct kvm_s390_gisa { 754 union { 755 struct { /* common to all formats */ 756 u32 next_alert; 757 u8 ipm; 758 u8 reserved01[2]; 759 u8 iam; 760 }; 761 struct { /* format 0 */ 762 u32 next_alert; 763 u8 ipm; 764 u8 reserved01; 765 u8 : 6; 766 u8 g : 1; 767 u8 c : 1; 768 u8 iam; 769 u8 reserved02[4]; 770 u32 airq_count; 771 } g0; 772 struct { /* format 1 */ 773 u32 next_alert; 774 u8 ipm; 775 u8 simm; 776 u8 nimm; 777 u8 iam; 778 u8 aism[8]; 779 u8 : 6; 780 u8 g : 1; 781 u8 c : 1; 782 u8 reserved03[11]; 783 u32 airq_count; 784 } g1; 785 struct { 786 u64 word[4]; 787 } u64; 788 }; 789 }; 790 791 struct kvm_s390_gib { 792 u32 alert_list_origin; 793 u32 reserved01; 794 u8:5; 795 u8 nisc:3; 796 u8 reserved03[3]; 797 u32 reserved04[5]; 798 }; 799 800 /* 801 * sie_page2 has to be allocated as DMA because fac_list, crycb and 802 * gisa need 31bit addresses in the sie control block. 803 */ 804 struct sie_page2 { 805 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 806 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 807 struct kvm_s390_gisa gisa; /* 0x0900 */ 808 struct kvm *kvm; /* 0x0920 */ 809 u8 reserved928[0x1000 - 0x928]; /* 0x0928 */ 810 }; 811 812 struct kvm_s390_vsie { 813 struct mutex mutex; 814 struct radix_tree_root addr_to_page; 815 int page_count; 816 int next; 817 struct page *pages[KVM_MAX_VCPUS]; 818 }; 819 820 struct kvm_s390_gisa_iam { 821 u8 mask; 822 spinlock_t ref_lock; 823 u32 ref_count[MAX_ISC + 1]; 824 }; 825 826 struct kvm_s390_gisa_interrupt { 827 struct kvm_s390_gisa *origin; 828 struct kvm_s390_gisa_iam alert; 829 struct hrtimer timer; 830 u64 expires; 831 DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS); 832 }; 833 834 struct kvm_arch{ 835 void *sca; 836 int use_esca; 837 rwlock_t sca_lock; 838 debug_info_t *dbf; 839 struct kvm_s390_float_interrupt float_int; 840 struct kvm_device *flic; 841 struct gmap *gmap; 842 unsigned long mem_limit; 843 int css_support; 844 int use_irqchip; 845 int use_cmma; 846 int use_pfmfi; 847 int use_skf; 848 int user_cpu_state_ctrl; 849 int user_sigp; 850 int user_stsi; 851 int user_instr0; 852 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 853 wait_queue_head_t ipte_wq; 854 int ipte_lock_count; 855 struct mutex ipte_mutex; 856 spinlock_t start_stop_lock; 857 struct sie_page2 *sie_page2; 858 struct kvm_s390_cpu_model model; 859 struct kvm_s390_crypto crypto; 860 struct kvm_s390_vsie vsie; 861 u8 epdx; 862 u64 epoch; 863 int migration_mode; 864 atomic64_t cmma_dirty_pages; 865 /* subset of available cpu features enabled by user space */ 866 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 867 DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS); 868 struct kvm_s390_gisa_interrupt gisa_int; 869 }; 870 871 #define KVM_HVA_ERR_BAD (-1UL) 872 #define KVM_HVA_ERR_RO_BAD (-2UL) 873 874 static inline bool kvm_is_error_hva(unsigned long addr) 875 { 876 return IS_ERR_VALUE(addr); 877 } 878 879 #define ASYNC_PF_PER_VCPU 64 880 struct kvm_arch_async_pf { 881 unsigned long pfault_token; 882 }; 883 884 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 885 886 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 887 struct kvm_async_pf *work); 888 889 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 890 struct kvm_async_pf *work); 891 892 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 893 struct kvm_async_pf *work); 894 895 void kvm_arch_crypto_clear_masks(struct kvm *kvm); 896 void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm, 897 unsigned long *aqm, unsigned long *adm); 898 899 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 900 extern char sie_exit; 901 902 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc); 903 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc); 904 905 static inline void kvm_arch_hardware_disable(void) {} 906 static inline void kvm_arch_check_processor_compat(void *rtn) {} 907 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 908 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 909 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 910 static inline void kvm_arch_free_memslot(struct kvm *kvm, 911 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 912 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 913 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 914 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 915 struct kvm_memory_slot *slot) {} 916 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 917 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 918 919 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 920 921 #endif 922