1 /* 2 * definition for kernel virtual machines on s390 3 * 4 * Copyright IBM Corp. 2008, 2009 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License (version 2 only) 8 * as published by the Free Software Foundation. 9 * 10 * Author(s): Carsten Otte <cotte@de.ibm.com> 11 */ 12 13 14 #ifndef ASM_KVM_HOST_H 15 #define ASM_KVM_HOST_H 16 17 #include <linux/types.h> 18 #include <linux/hrtimer.h> 19 #include <linux/interrupt.h> 20 #include <linux/kvm_types.h> 21 #include <linux/kvm_host.h> 22 #include <linux/kvm.h> 23 #include <linux/seqlock.h> 24 #include <asm/debug.h> 25 #include <asm/cpu.h> 26 #include <asm/fpu/api.h> 27 #include <asm/isc.h> 28 #include <asm/guarded_storage.h> 29 30 #define KVM_S390_BSCA_CPU_SLOTS 64 31 #define KVM_S390_ESCA_CPU_SLOTS 248 32 #define KVM_MAX_VCPUS 255 33 #define KVM_USER_MEM_SLOTS 32 34 35 /* 36 * These seem to be used for allocating ->chip in the routing table, 37 * which we don't use. 4096 is an out-of-thin-air value. If we need 38 * to look at ->chip later on, we'll need to revisit this. 39 */ 40 #define KVM_NR_IRQCHIPS 1 41 #define KVM_IRQCHIP_NUM_PINS 4096 42 #define KVM_HALT_POLL_NS_DEFAULT 80000 43 44 /* s390-specific vcpu->requests bit members */ 45 #define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0) 46 #define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1) 47 #define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2) 48 #define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3) 49 #define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4) 50 51 #define SIGP_CTRL_C 0x80 52 #define SIGP_CTRL_SCN_MASK 0x3f 53 54 union bsca_sigp_ctrl { 55 __u8 value; 56 struct { 57 __u8 c : 1; 58 __u8 r : 1; 59 __u8 scn : 6; 60 }; 61 }; 62 63 union esca_sigp_ctrl { 64 __u16 value; 65 struct { 66 __u8 c : 1; 67 __u8 reserved: 7; 68 __u8 scn; 69 }; 70 }; 71 72 struct esca_entry { 73 union esca_sigp_ctrl sigp_ctrl; 74 __u16 reserved1[3]; 75 __u64 sda; 76 __u64 reserved2[6]; 77 }; 78 79 struct bsca_entry { 80 __u8 reserved0; 81 union bsca_sigp_ctrl sigp_ctrl; 82 __u16 reserved[3]; 83 __u64 sda; 84 __u64 reserved2[2]; 85 }; 86 87 union ipte_control { 88 unsigned long val; 89 struct { 90 unsigned long k : 1; 91 unsigned long kh : 31; 92 unsigned long kg : 32; 93 }; 94 }; 95 96 struct bsca_block { 97 union ipte_control ipte_control; 98 __u64 reserved[5]; 99 __u64 mcn; 100 __u64 reserved2; 101 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS]; 102 }; 103 104 struct esca_block { 105 union ipte_control ipte_control; 106 __u64 reserved1[7]; 107 __u64 mcn[4]; 108 __u64 reserved2[20]; 109 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS]; 110 }; 111 112 /* 113 * This struct is used to store some machine check info from lowcore 114 * for machine checks that happen while the guest is running. 115 * This info in host's lowcore might be overwritten by a second machine 116 * check from host when host is in the machine check's high-level handling. 117 * The size is 24 bytes. 118 */ 119 struct mcck_volatile_info { 120 __u64 mcic; 121 __u64 failing_storage_address; 122 __u32 ext_damage_code; 123 __u32 reserved; 124 }; 125 126 #define CPUSTAT_STOPPED 0x80000000 127 #define CPUSTAT_WAIT 0x10000000 128 #define CPUSTAT_ECALL_PEND 0x08000000 129 #define CPUSTAT_STOP_INT 0x04000000 130 #define CPUSTAT_IO_INT 0x02000000 131 #define CPUSTAT_EXT_INT 0x01000000 132 #define CPUSTAT_RUNNING 0x00800000 133 #define CPUSTAT_RETAINED 0x00400000 134 #define CPUSTAT_TIMING_SUB 0x00020000 135 #define CPUSTAT_SIE_SUB 0x00010000 136 #define CPUSTAT_RRF 0x00008000 137 #define CPUSTAT_SLSV 0x00004000 138 #define CPUSTAT_SLSR 0x00002000 139 #define CPUSTAT_ZARCH 0x00000800 140 #define CPUSTAT_MCDS 0x00000100 141 #define CPUSTAT_KSS 0x00000200 142 #define CPUSTAT_SM 0x00000080 143 #define CPUSTAT_IBS 0x00000040 144 #define CPUSTAT_GED2 0x00000010 145 #define CPUSTAT_G 0x00000008 146 #define CPUSTAT_GED 0x00000004 147 #define CPUSTAT_J 0x00000002 148 #define CPUSTAT_P 0x00000001 149 150 struct kvm_s390_sie_block { 151 atomic_t cpuflags; /* 0x0000 */ 152 __u32 : 1; /* 0x0004 */ 153 __u32 prefix : 18; 154 __u32 : 1; 155 __u32 ibc : 12; 156 __u8 reserved08[4]; /* 0x0008 */ 157 #define PROG_IN_SIE (1<<0) 158 __u32 prog0c; /* 0x000c */ 159 __u8 reserved10[16]; /* 0x0010 */ 160 #define PROG_BLOCK_SIE (1<<0) 161 #define PROG_REQUEST (1<<1) 162 atomic_t prog20; /* 0x0020 */ 163 __u8 reserved24[4]; /* 0x0024 */ 164 __u64 cputm; /* 0x0028 */ 165 __u64 ckc; /* 0x0030 */ 166 __u64 epoch; /* 0x0038 */ 167 __u32 svcc; /* 0x0040 */ 168 #define LCTL_CR0 0x8000 169 #define LCTL_CR6 0x0200 170 #define LCTL_CR9 0x0040 171 #define LCTL_CR10 0x0020 172 #define LCTL_CR11 0x0010 173 #define LCTL_CR14 0x0002 174 __u16 lctl; /* 0x0044 */ 175 __s16 icpua; /* 0x0046 */ 176 #define ICTL_OPEREXC 0x80000000 177 #define ICTL_PINT 0x20000000 178 #define ICTL_LPSW 0x00400000 179 #define ICTL_STCTL 0x00040000 180 #define ICTL_ISKE 0x00004000 181 #define ICTL_SSKE 0x00002000 182 #define ICTL_RRBE 0x00001000 183 #define ICTL_TPROT 0x00000200 184 __u32 ictl; /* 0x0048 */ 185 #define ECA_CEI 0x80000000 186 #define ECA_IB 0x40000000 187 #define ECA_SIGPI 0x10000000 188 #define ECA_MVPGI 0x01000000 189 #define ECA_VX 0x00020000 190 #define ECA_PROTEXCI 0x00002000 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 __u8 reserved60; /* 0x0060 */ 214 #define ECB_GS 0x40 215 #define ECB_TE 0x10 216 #define ECB_SRSI 0x04 217 #define ECB_HOSTPROTINT 0x02 218 __u8 ecb; /* 0x0061 */ 219 #define ECB2_CMMA 0x80 220 #define ECB2_IEP 0x20 221 #define ECB2_PFMFI 0x08 222 #define ECB2_ESCA 0x04 223 __u8 ecb2; /* 0x0062 */ 224 #define ECB3_DEA 0x08 225 #define ECB3_AES 0x04 226 #define ECB3_RI 0x01 227 __u8 ecb3; /* 0x0063 */ 228 __u32 scaol; /* 0x0064 */ 229 __u8 reserved68[4]; /* 0x0068 */ 230 __u32 todpr; /* 0x006c */ 231 __u8 reserved70[16]; /* 0x0070 */ 232 __u64 mso; /* 0x0080 */ 233 __u64 msl; /* 0x0088 */ 234 psw_t gpsw; /* 0x0090 */ 235 __u64 gg14; /* 0x00a0 */ 236 __u64 gg15; /* 0x00a8 */ 237 __u8 reservedb0[20]; /* 0x00b0 */ 238 __u16 extcpuaddr; /* 0x00c4 */ 239 __u16 eic; /* 0x00c6 */ 240 __u32 reservedc8; /* 0x00c8 */ 241 __u16 pgmilc; /* 0x00cc */ 242 __u16 iprcc; /* 0x00ce */ 243 __u32 dxc; /* 0x00d0 */ 244 __u16 mcn; /* 0x00d4 */ 245 __u8 perc; /* 0x00d6 */ 246 __u8 peratmid; /* 0x00d7 */ 247 __u64 peraddr; /* 0x00d8 */ 248 __u8 eai; /* 0x00e0 */ 249 __u8 peraid; /* 0x00e1 */ 250 __u8 oai; /* 0x00e2 */ 251 __u8 armid; /* 0x00e3 */ 252 __u8 reservede4[4]; /* 0x00e4 */ 253 __u64 tecmc; /* 0x00e8 */ 254 __u8 reservedf0[12]; /* 0x00f0 */ 255 #define CRYCB_FORMAT1 0x00000001 256 #define CRYCB_FORMAT2 0x00000003 257 __u32 crycbd; /* 0x00fc */ 258 __u64 gcr[16]; /* 0x0100 */ 259 __u64 gbea; /* 0x0180 */ 260 __u8 reserved188[8]; /* 0x0188 */ 261 __u64 sdnxo; /* 0x0190 */ 262 __u8 reserved198[8]; /* 0x0198 */ 263 __u32 fac; /* 0x01a0 */ 264 __u8 reserved1a4[20]; /* 0x01a4 */ 265 __u64 cbrlo; /* 0x01b8 */ 266 __u8 reserved1c0[8]; /* 0x01c0 */ 267 #define ECD_HOSTREGMGMT 0x20000000 268 __u32 ecd; /* 0x01c8 */ 269 __u8 reserved1cc[18]; /* 0x01cc */ 270 __u64 pp; /* 0x01de */ 271 __u8 reserved1e6[2]; /* 0x01e6 */ 272 __u64 itdba; /* 0x01e8 */ 273 __u64 riccbd; /* 0x01f0 */ 274 __u64 gvrd; /* 0x01f8 */ 275 } __attribute__((packed)); 276 277 struct kvm_s390_itdb { 278 __u8 data[256]; 279 }; 280 281 struct sie_page { 282 struct kvm_s390_sie_block sie_block; 283 struct mcck_volatile_info mcck_info; /* 0x0200 */ 284 __u8 reserved218[1000]; /* 0x0218 */ 285 struct kvm_s390_itdb itdb; /* 0x0600 */ 286 __u8 reserved700[2304]; /* 0x0700 */ 287 }; 288 289 struct kvm_vcpu_stat { 290 u64 exit_userspace; 291 u64 exit_null; 292 u64 exit_external_request; 293 u64 exit_external_interrupt; 294 u64 exit_stop_request; 295 u64 exit_validity; 296 u64 exit_instruction; 297 u64 exit_pei; 298 u64 halt_successful_poll; 299 u64 halt_attempted_poll; 300 u64 halt_poll_invalid; 301 u64 halt_wakeup; 302 u64 instruction_lctl; 303 u64 instruction_lctlg; 304 u64 instruction_stctl; 305 u64 instruction_stctg; 306 u64 exit_program_interruption; 307 u64 exit_instr_and_program; 308 u64 exit_operation_exception; 309 u64 deliver_external_call; 310 u64 deliver_emergency_signal; 311 u64 deliver_service_signal; 312 u64 deliver_virtio_interrupt; 313 u64 deliver_stop_signal; 314 u64 deliver_prefix_signal; 315 u64 deliver_restart_signal; 316 u64 deliver_program_int; 317 u64 deliver_io_int; 318 u64 exit_wait_state; 319 u64 instruction_pfmf; 320 u64 instruction_stidp; 321 u64 instruction_spx; 322 u64 instruction_stpx; 323 u64 instruction_stap; 324 u64 instruction_storage_key; 325 u64 instruction_ipte_interlock; 326 u64 instruction_stsch; 327 u64 instruction_chsc; 328 u64 instruction_stsi; 329 u64 instruction_stfl; 330 u64 instruction_tprot; 331 u64 instruction_sie; 332 u64 instruction_essa; 333 u64 instruction_sthyi; 334 u64 instruction_sigp_sense; 335 u64 instruction_sigp_sense_running; 336 u64 instruction_sigp_external_call; 337 u64 instruction_sigp_emergency; 338 u64 instruction_sigp_cond_emergency; 339 u64 instruction_sigp_start; 340 u64 instruction_sigp_stop; 341 u64 instruction_sigp_stop_store_status; 342 u64 instruction_sigp_store_status; 343 u64 instruction_sigp_store_adtl_status; 344 u64 instruction_sigp_arch; 345 u64 instruction_sigp_prefix; 346 u64 instruction_sigp_restart; 347 u64 instruction_sigp_init_cpu_reset; 348 u64 instruction_sigp_cpu_reset; 349 u64 instruction_sigp_unknown; 350 u64 diagnose_10; 351 u64 diagnose_44; 352 u64 diagnose_9c; 353 u64 diagnose_258; 354 u64 diagnose_308; 355 u64 diagnose_500; 356 }; 357 358 #define PGM_OPERATION 0x01 359 #define PGM_PRIVILEGED_OP 0x02 360 #define PGM_EXECUTE 0x03 361 #define PGM_PROTECTION 0x04 362 #define PGM_ADDRESSING 0x05 363 #define PGM_SPECIFICATION 0x06 364 #define PGM_DATA 0x07 365 #define PGM_FIXED_POINT_OVERFLOW 0x08 366 #define PGM_FIXED_POINT_DIVIDE 0x09 367 #define PGM_DECIMAL_OVERFLOW 0x0a 368 #define PGM_DECIMAL_DIVIDE 0x0b 369 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 370 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 371 #define PGM_HFP_SIGNIFICANCE 0x0e 372 #define PGM_HFP_DIVIDE 0x0f 373 #define PGM_SEGMENT_TRANSLATION 0x10 374 #define PGM_PAGE_TRANSLATION 0x11 375 #define PGM_TRANSLATION_SPEC 0x12 376 #define PGM_SPECIAL_OPERATION 0x13 377 #define PGM_OPERAND 0x15 378 #define PGM_TRACE_TABEL 0x16 379 #define PGM_VECTOR_PROCESSING 0x1b 380 #define PGM_SPACE_SWITCH 0x1c 381 #define PGM_HFP_SQUARE_ROOT 0x1d 382 #define PGM_PC_TRANSLATION_SPEC 0x1f 383 #define PGM_AFX_TRANSLATION 0x20 384 #define PGM_ASX_TRANSLATION 0x21 385 #define PGM_LX_TRANSLATION 0x22 386 #define PGM_EX_TRANSLATION 0x23 387 #define PGM_PRIMARY_AUTHORITY 0x24 388 #define PGM_SECONDARY_AUTHORITY 0x25 389 #define PGM_LFX_TRANSLATION 0x26 390 #define PGM_LSX_TRANSLATION 0x27 391 #define PGM_ALET_SPECIFICATION 0x28 392 #define PGM_ALEN_TRANSLATION 0x29 393 #define PGM_ALE_SEQUENCE 0x2a 394 #define PGM_ASTE_VALIDITY 0x2b 395 #define PGM_ASTE_SEQUENCE 0x2c 396 #define PGM_EXTENDED_AUTHORITY 0x2d 397 #define PGM_LSTE_SEQUENCE 0x2e 398 #define PGM_ASTE_INSTANCE 0x2f 399 #define PGM_STACK_FULL 0x30 400 #define PGM_STACK_EMPTY 0x31 401 #define PGM_STACK_SPECIFICATION 0x32 402 #define PGM_STACK_TYPE 0x33 403 #define PGM_STACK_OPERATION 0x34 404 #define PGM_ASCE_TYPE 0x38 405 #define PGM_REGION_FIRST_TRANS 0x39 406 #define PGM_REGION_SECOND_TRANS 0x3a 407 #define PGM_REGION_THIRD_TRANS 0x3b 408 #define PGM_MONITOR 0x40 409 #define PGM_PER 0x80 410 #define PGM_CRYPTO_OPERATION 0x119 411 412 /* irq types in order of priority */ 413 enum irq_types { 414 IRQ_PEND_MCHK_EX = 0, 415 IRQ_PEND_SVC, 416 IRQ_PEND_PROG, 417 IRQ_PEND_MCHK_REP, 418 IRQ_PEND_EXT_IRQ_KEY, 419 IRQ_PEND_EXT_MALFUNC, 420 IRQ_PEND_EXT_EMERGENCY, 421 IRQ_PEND_EXT_EXTERNAL, 422 IRQ_PEND_EXT_CLOCK_COMP, 423 IRQ_PEND_EXT_CPU_TIMER, 424 IRQ_PEND_EXT_TIMING, 425 IRQ_PEND_EXT_SERVICE, 426 IRQ_PEND_EXT_HOST, 427 IRQ_PEND_PFAULT_INIT, 428 IRQ_PEND_PFAULT_DONE, 429 IRQ_PEND_VIRTIO, 430 IRQ_PEND_IO_ISC_0, 431 IRQ_PEND_IO_ISC_1, 432 IRQ_PEND_IO_ISC_2, 433 IRQ_PEND_IO_ISC_3, 434 IRQ_PEND_IO_ISC_4, 435 IRQ_PEND_IO_ISC_5, 436 IRQ_PEND_IO_ISC_6, 437 IRQ_PEND_IO_ISC_7, 438 IRQ_PEND_SIGP_STOP, 439 IRQ_PEND_RESTART, 440 IRQ_PEND_SET_PREFIX, 441 IRQ_PEND_COUNT 442 }; 443 444 /* We have 2M for virtio device descriptor pages. Smallest amount of 445 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 446 */ 447 #define KVM_S390_MAX_VIRTIO_IRQS 87381 448 449 /* 450 * Repressible (non-floating) machine check interrupts 451 * subclass bits in MCIC 452 */ 453 #define MCHK_EXTD_BIT 58 454 #define MCHK_DEGR_BIT 56 455 #define MCHK_WARN_BIT 55 456 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 457 (1UL << MCHK_EXTD_BIT) | \ 458 (1UL << MCHK_WARN_BIT)) 459 460 /* Exigent machine check interrupts subclass bits in MCIC */ 461 #define MCHK_SD_BIT 63 462 #define MCHK_PD_BIT 62 463 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 464 465 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 466 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 467 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 468 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 469 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 470 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 471 (1UL << IRQ_PEND_EXT_TIMING) | \ 472 (1UL << IRQ_PEND_EXT_HOST) | \ 473 (1UL << IRQ_PEND_EXT_SERVICE) | \ 474 (1UL << IRQ_PEND_VIRTIO) | \ 475 (1UL << IRQ_PEND_PFAULT_INIT) | \ 476 (1UL << IRQ_PEND_PFAULT_DONE)) 477 478 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 479 (1UL << IRQ_PEND_IO_ISC_1) | \ 480 (1UL << IRQ_PEND_IO_ISC_2) | \ 481 (1UL << IRQ_PEND_IO_ISC_3) | \ 482 (1UL << IRQ_PEND_IO_ISC_4) | \ 483 (1UL << IRQ_PEND_IO_ISC_5) | \ 484 (1UL << IRQ_PEND_IO_ISC_6) | \ 485 (1UL << IRQ_PEND_IO_ISC_7)) 486 487 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 488 (1UL << IRQ_PEND_MCHK_EX)) 489 490 struct kvm_s390_interrupt_info { 491 struct list_head list; 492 u64 type; 493 union { 494 struct kvm_s390_io_info io; 495 struct kvm_s390_ext_info ext; 496 struct kvm_s390_pgm_info pgm; 497 struct kvm_s390_emerg_info emerg; 498 struct kvm_s390_extcall_info extcall; 499 struct kvm_s390_prefix_info prefix; 500 struct kvm_s390_stop_info stop; 501 struct kvm_s390_mchk_info mchk; 502 }; 503 }; 504 505 struct kvm_s390_irq_payload { 506 struct kvm_s390_io_info io; 507 struct kvm_s390_ext_info ext; 508 struct kvm_s390_pgm_info pgm; 509 struct kvm_s390_emerg_info emerg; 510 struct kvm_s390_extcall_info extcall; 511 struct kvm_s390_prefix_info prefix; 512 struct kvm_s390_stop_info stop; 513 struct kvm_s390_mchk_info mchk; 514 }; 515 516 struct kvm_s390_local_interrupt { 517 spinlock_t lock; 518 struct kvm_s390_float_interrupt *float_int; 519 struct swait_queue_head *wq; 520 atomic_t *cpuflags; 521 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 522 struct kvm_s390_irq_payload irq; 523 unsigned long pending_irqs; 524 }; 525 526 #define FIRQ_LIST_IO_ISC_0 0 527 #define FIRQ_LIST_IO_ISC_1 1 528 #define FIRQ_LIST_IO_ISC_2 2 529 #define FIRQ_LIST_IO_ISC_3 3 530 #define FIRQ_LIST_IO_ISC_4 4 531 #define FIRQ_LIST_IO_ISC_5 5 532 #define FIRQ_LIST_IO_ISC_6 6 533 #define FIRQ_LIST_IO_ISC_7 7 534 #define FIRQ_LIST_PFAULT 8 535 #define FIRQ_LIST_VIRTIO 9 536 #define FIRQ_LIST_COUNT 10 537 #define FIRQ_CNTR_IO 0 538 #define FIRQ_CNTR_SERVICE 1 539 #define FIRQ_CNTR_VIRTIO 2 540 #define FIRQ_CNTR_PFAULT 3 541 #define FIRQ_MAX_COUNT 4 542 543 /* mask the AIS mode for a given ISC */ 544 #define AIS_MODE_MASK(isc) (0x80 >> isc) 545 546 #define KVM_S390_AIS_MODE_ALL 0 547 #define KVM_S390_AIS_MODE_SINGLE 1 548 549 struct kvm_s390_float_interrupt { 550 unsigned long pending_irqs; 551 spinlock_t lock; 552 struct list_head lists[FIRQ_LIST_COUNT]; 553 int counters[FIRQ_MAX_COUNT]; 554 struct kvm_s390_mchk_info mchk; 555 struct kvm_s390_ext_info srv_signal; 556 int next_rr_cpu; 557 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; 558 struct mutex ais_lock; 559 u8 simm; 560 u8 nimm; 561 }; 562 563 struct kvm_hw_wp_info_arch { 564 unsigned long addr; 565 unsigned long phys_addr; 566 int len; 567 char *old_data; 568 }; 569 570 struct kvm_hw_bp_info_arch { 571 unsigned long addr; 572 int len; 573 }; 574 575 /* 576 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 577 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 578 * arch/s390/include/uapi/asm/kvm.h 579 */ 580 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 581 582 #define guestdbg_enabled(vcpu) \ 583 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 584 #define guestdbg_sstep_enabled(vcpu) \ 585 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 586 #define guestdbg_hw_bp_enabled(vcpu) \ 587 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 588 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 589 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 590 591 struct kvm_guestdbg_info_arch { 592 unsigned long cr0; 593 unsigned long cr9; 594 unsigned long cr10; 595 unsigned long cr11; 596 struct kvm_hw_bp_info_arch *hw_bp_info; 597 struct kvm_hw_wp_info_arch *hw_wp_info; 598 int nr_hw_bp; 599 int nr_hw_wp; 600 unsigned long last_bp; 601 }; 602 603 struct kvm_vcpu_arch { 604 struct kvm_s390_sie_block *sie_block; 605 /* if vsie is active, currently executed shadow sie control block */ 606 struct kvm_s390_sie_block *vsie_block; 607 unsigned int host_acrs[NUM_ACRS]; 608 struct gs_cb *host_gscb; 609 struct fpu host_fpregs; 610 struct kvm_s390_local_interrupt local_int; 611 struct hrtimer ckc_timer; 612 struct kvm_s390_pgm_info pgm; 613 struct gmap *gmap; 614 /* backup location for the currently enabled gmap when scheduled out */ 615 struct gmap *enabled_gmap; 616 struct kvm_guestdbg_info_arch guestdbg; 617 unsigned long pfault_token; 618 unsigned long pfault_select; 619 unsigned long pfault_compare; 620 bool cputm_enabled; 621 /* 622 * The seqcount protects updates to cputm_start and sie_block.cputm, 623 * this way we can have non-blocking reads with consistent values. 624 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 625 * values and to start/stop/enable/disable cpu timer accounting. 626 */ 627 seqcount_t cputm_seqcount; 628 __u64 cputm_start; 629 bool gs_enabled; 630 }; 631 632 struct kvm_vm_stat { 633 ulong remote_tlb_flush; 634 }; 635 636 struct kvm_arch_memory_slot { 637 }; 638 639 struct s390_map_info { 640 struct list_head list; 641 __u64 guest_addr; 642 __u64 addr; 643 struct page *page; 644 }; 645 646 struct s390_io_adapter { 647 unsigned int id; 648 int isc; 649 bool maskable; 650 bool masked; 651 bool swap; 652 bool suppressible; 653 struct rw_semaphore maps_lock; 654 struct list_head maps; 655 atomic_t nr_maps; 656 }; 657 658 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 659 #define MAX_S390_ADAPTER_MAPS 256 660 661 /* maximum size of facilities and facility mask is 2k bytes */ 662 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 663 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 664 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 665 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 666 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 667 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 668 669 struct kvm_s390_cpu_model { 670 /* facility mask supported by kvm & hosting machine */ 671 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 672 /* facility list requested by guest (in dma page) */ 673 __u64 *fac_list; 674 u64 cpuid; 675 unsigned short ibc; 676 }; 677 678 struct kvm_s390_crypto { 679 struct kvm_s390_crypto_cb *crycb; 680 __u32 crycbd; 681 __u8 aes_kw; 682 __u8 dea_kw; 683 }; 684 685 struct kvm_s390_crypto_cb { 686 __u8 reserved00[72]; /* 0x0000 */ 687 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 688 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 689 __u8 reserved80[128]; /* 0x0080 */ 690 }; 691 692 /* 693 * sie_page2 has to be allocated as DMA because fac_list and crycb need 694 * 31bit addresses in the sie control block. 695 */ 696 struct sie_page2 { 697 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 698 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 699 u8 reserved900[0x1000 - 0x900]; /* 0x0900 */ 700 }; 701 702 struct kvm_s390_vsie { 703 struct mutex mutex; 704 struct radix_tree_root addr_to_page; 705 int page_count; 706 int next; 707 struct page *pages[KVM_MAX_VCPUS]; 708 }; 709 710 struct kvm_s390_migration_state { 711 unsigned long bitmap_size; /* in bits (number of guest pages) */ 712 atomic64_t dirty_pages; /* number of dirty pages */ 713 unsigned long *pgste_bitmap; 714 }; 715 716 struct kvm_arch{ 717 void *sca; 718 int use_esca; 719 rwlock_t sca_lock; 720 debug_info_t *dbf; 721 struct kvm_s390_float_interrupt float_int; 722 struct kvm_device *flic; 723 struct gmap *gmap; 724 unsigned long mem_limit; 725 int css_support; 726 int use_irqchip; 727 int use_cmma; 728 int user_cpu_state_ctrl; 729 int user_sigp; 730 int user_stsi; 731 int user_instr0; 732 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 733 wait_queue_head_t ipte_wq; 734 int ipte_lock_count; 735 struct mutex ipte_mutex; 736 struct ratelimit_state sthyi_limit; 737 spinlock_t start_stop_lock; 738 struct sie_page2 *sie_page2; 739 struct kvm_s390_cpu_model model; 740 struct kvm_s390_crypto crypto; 741 struct kvm_s390_vsie vsie; 742 u64 epoch; 743 struct kvm_s390_migration_state *migration_state; 744 /* subset of available cpu features enabled by user space */ 745 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 746 }; 747 748 #define KVM_HVA_ERR_BAD (-1UL) 749 #define KVM_HVA_ERR_RO_BAD (-2UL) 750 751 static inline bool kvm_is_error_hva(unsigned long addr) 752 { 753 return IS_ERR_VALUE(addr); 754 } 755 756 #define ASYNC_PF_PER_VCPU 64 757 struct kvm_arch_async_pf { 758 unsigned long pfault_token; 759 }; 760 761 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 762 763 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 764 struct kvm_async_pf *work); 765 766 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 767 struct kvm_async_pf *work); 768 769 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 770 struct kvm_async_pf *work); 771 772 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 773 extern char sie_exit; 774 775 static inline void kvm_arch_hardware_disable(void) {} 776 static inline void kvm_arch_check_processor_compat(void *rtn) {} 777 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 778 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 779 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 780 static inline void kvm_arch_free_memslot(struct kvm *kvm, 781 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 782 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {} 783 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 784 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 785 struct kvm_memory_slot *slot) {} 786 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 787 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 788 789 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 790 791 #endif 792