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 8 46 #define KVM_REQ_DISABLE_IBS 9 47 #define KVM_REQ_ICPT_OPEREXC 10 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 } __packed; 60 61 union esca_sigp_ctrl { 62 __u16 value; 63 struct { 64 __u8 c : 1; 65 __u8 reserved: 7; 66 __u8 scn; 67 }; 68 } __packed; 69 70 struct esca_entry { 71 union esca_sigp_ctrl sigp_ctrl; 72 __u16 reserved1[3]; 73 __u64 sda; 74 __u64 reserved2[6]; 75 } __packed; 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 } __attribute__((packed)); 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 } __attribute__((packed)); 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 } __packed; 109 110 #define CPUSTAT_STOPPED 0x80000000 111 #define CPUSTAT_WAIT 0x10000000 112 #define CPUSTAT_ECALL_PEND 0x08000000 113 #define CPUSTAT_STOP_INT 0x04000000 114 #define CPUSTAT_IO_INT 0x02000000 115 #define CPUSTAT_EXT_INT 0x01000000 116 #define CPUSTAT_RUNNING 0x00800000 117 #define CPUSTAT_RETAINED 0x00400000 118 #define CPUSTAT_TIMING_SUB 0x00020000 119 #define CPUSTAT_SIE_SUB 0x00010000 120 #define CPUSTAT_RRF 0x00008000 121 #define CPUSTAT_SLSV 0x00004000 122 #define CPUSTAT_SLSR 0x00002000 123 #define CPUSTAT_ZARCH 0x00000800 124 #define CPUSTAT_MCDS 0x00000100 125 #define CPUSTAT_KSS 0x00000200 126 #define CPUSTAT_SM 0x00000080 127 #define CPUSTAT_IBS 0x00000040 128 #define CPUSTAT_GED2 0x00000010 129 #define CPUSTAT_G 0x00000008 130 #define CPUSTAT_GED 0x00000004 131 #define CPUSTAT_J 0x00000002 132 #define CPUSTAT_P 0x00000001 133 134 struct kvm_s390_sie_block { 135 atomic_t cpuflags; /* 0x0000 */ 136 __u32 : 1; /* 0x0004 */ 137 __u32 prefix : 18; 138 __u32 : 1; 139 __u32 ibc : 12; 140 __u8 reserved08[4]; /* 0x0008 */ 141 #define PROG_IN_SIE (1<<0) 142 __u32 prog0c; /* 0x000c */ 143 __u8 reserved10[16]; /* 0x0010 */ 144 #define PROG_BLOCK_SIE (1<<0) 145 #define PROG_REQUEST (1<<1) 146 atomic_t prog20; /* 0x0020 */ 147 __u8 reserved24[4]; /* 0x0024 */ 148 __u64 cputm; /* 0x0028 */ 149 __u64 ckc; /* 0x0030 */ 150 __u64 epoch; /* 0x0038 */ 151 __u32 svcc; /* 0x0040 */ 152 #define LCTL_CR0 0x8000 153 #define LCTL_CR6 0x0200 154 #define LCTL_CR9 0x0040 155 #define LCTL_CR10 0x0020 156 #define LCTL_CR11 0x0010 157 #define LCTL_CR14 0x0002 158 __u16 lctl; /* 0x0044 */ 159 __s16 icpua; /* 0x0046 */ 160 #define ICTL_OPEREXC 0x80000000 161 #define ICTL_PINT 0x20000000 162 #define ICTL_LPSW 0x00400000 163 #define ICTL_STCTL 0x00040000 164 #define ICTL_ISKE 0x00004000 165 #define ICTL_SSKE 0x00002000 166 #define ICTL_RRBE 0x00001000 167 #define ICTL_TPROT 0x00000200 168 __u32 ictl; /* 0x0048 */ 169 #define ECA_CEI 0x80000000 170 #define ECA_IB 0x40000000 171 #define ECA_SIGPI 0x10000000 172 #define ECA_MVPGI 0x01000000 173 #define ECA_VX 0x00020000 174 #define ECA_PROTEXCI 0x00002000 175 #define ECA_SII 0x00000001 176 __u32 eca; /* 0x004c */ 177 #define ICPT_INST 0x04 178 #define ICPT_PROGI 0x08 179 #define ICPT_INSTPROGI 0x0C 180 #define ICPT_EXTREQ 0x10 181 #define ICPT_EXTINT 0x14 182 #define ICPT_IOREQ 0x18 183 #define ICPT_WAIT 0x1c 184 #define ICPT_VALIDITY 0x20 185 #define ICPT_STOP 0x28 186 #define ICPT_OPEREXC 0x2C 187 #define ICPT_PARTEXEC 0x38 188 #define ICPT_IOINST 0x40 189 #define ICPT_KSS 0x5c 190 __u8 icptcode; /* 0x0050 */ 191 __u8 icptstatus; /* 0x0051 */ 192 __u16 ihcpu; /* 0x0052 */ 193 __u8 reserved54[2]; /* 0x0054 */ 194 __u16 ipa; /* 0x0056 */ 195 __u32 ipb; /* 0x0058 */ 196 __u32 scaoh; /* 0x005c */ 197 __u8 reserved60; /* 0x0060 */ 198 #define ECB_GS 0x40 199 #define ECB_TE 0x10 200 #define ECB_SRSI 0x04 201 #define ECB_HOSTPROTINT 0x02 202 __u8 ecb; /* 0x0061 */ 203 #define ECB2_CMMA 0x80 204 #define ECB2_IEP 0x20 205 #define ECB2_PFMFI 0x08 206 #define ECB2_ESCA 0x04 207 __u8 ecb2; /* 0x0062 */ 208 #define ECB3_DEA 0x08 209 #define ECB3_AES 0x04 210 #define ECB3_RI 0x01 211 __u8 ecb3; /* 0x0063 */ 212 __u32 scaol; /* 0x0064 */ 213 __u8 reserved68[4]; /* 0x0068 */ 214 __u32 todpr; /* 0x006c */ 215 __u8 reserved70[16]; /* 0x0070 */ 216 __u64 mso; /* 0x0080 */ 217 __u64 msl; /* 0x0088 */ 218 psw_t gpsw; /* 0x0090 */ 219 __u64 gg14; /* 0x00a0 */ 220 __u64 gg15; /* 0x00a8 */ 221 __u8 reservedb0[20]; /* 0x00b0 */ 222 __u16 extcpuaddr; /* 0x00c4 */ 223 __u16 eic; /* 0x00c6 */ 224 __u32 reservedc8; /* 0x00c8 */ 225 __u16 pgmilc; /* 0x00cc */ 226 __u16 iprcc; /* 0x00ce */ 227 __u32 dxc; /* 0x00d0 */ 228 __u16 mcn; /* 0x00d4 */ 229 __u8 perc; /* 0x00d6 */ 230 __u8 peratmid; /* 0x00d7 */ 231 __u64 peraddr; /* 0x00d8 */ 232 __u8 eai; /* 0x00e0 */ 233 __u8 peraid; /* 0x00e1 */ 234 __u8 oai; /* 0x00e2 */ 235 __u8 armid; /* 0x00e3 */ 236 __u8 reservede4[4]; /* 0x00e4 */ 237 __u64 tecmc; /* 0x00e8 */ 238 __u8 reservedf0[12]; /* 0x00f0 */ 239 #define CRYCB_FORMAT1 0x00000001 240 #define CRYCB_FORMAT2 0x00000003 241 __u32 crycbd; /* 0x00fc */ 242 __u64 gcr[16]; /* 0x0100 */ 243 __u64 gbea; /* 0x0180 */ 244 __u8 reserved188[8]; /* 0x0188 */ 245 __u64 sdnxo; /* 0x0190 */ 246 __u8 reserved198[8]; /* 0x0198 */ 247 __u32 fac; /* 0x01a0 */ 248 __u8 reserved1a4[20]; /* 0x01a4 */ 249 __u64 cbrlo; /* 0x01b8 */ 250 __u8 reserved1c0[8]; /* 0x01c0 */ 251 #define ECD_HOSTREGMGMT 0x20000000 252 __u32 ecd; /* 0x01c8 */ 253 __u8 reserved1cc[18]; /* 0x01cc */ 254 __u64 pp; /* 0x01de */ 255 __u8 reserved1e6[2]; /* 0x01e6 */ 256 __u64 itdba; /* 0x01e8 */ 257 __u64 riccbd; /* 0x01f0 */ 258 __u64 gvrd; /* 0x01f8 */ 259 } __attribute__((packed)); 260 261 struct kvm_s390_itdb { 262 __u8 data[256]; 263 } __packed; 264 265 struct sie_page { 266 struct kvm_s390_sie_block sie_block; 267 __u8 reserved200[1024]; /* 0x0200 */ 268 struct kvm_s390_itdb itdb; /* 0x0600 */ 269 __u8 reserved700[2304]; /* 0x0700 */ 270 } __packed; 271 272 struct kvm_vcpu_stat { 273 u64 exit_userspace; 274 u64 exit_null; 275 u64 exit_external_request; 276 u64 exit_external_interrupt; 277 u64 exit_stop_request; 278 u64 exit_validity; 279 u64 exit_instruction; 280 u64 exit_pei; 281 u64 halt_successful_poll; 282 u64 halt_attempted_poll; 283 u64 halt_poll_invalid; 284 u64 halt_wakeup; 285 u64 instruction_lctl; 286 u64 instruction_lctlg; 287 u64 instruction_stctl; 288 u64 instruction_stctg; 289 u64 exit_program_interruption; 290 u64 exit_instr_and_program; 291 u64 exit_operation_exception; 292 u64 deliver_external_call; 293 u64 deliver_emergency_signal; 294 u64 deliver_service_signal; 295 u64 deliver_virtio_interrupt; 296 u64 deliver_stop_signal; 297 u64 deliver_prefix_signal; 298 u64 deliver_restart_signal; 299 u64 deliver_program_int; 300 u64 deliver_io_int; 301 u64 exit_wait_state; 302 u64 instruction_pfmf; 303 u64 instruction_stidp; 304 u64 instruction_spx; 305 u64 instruction_stpx; 306 u64 instruction_stap; 307 u64 instruction_storage_key; 308 u64 instruction_ipte_interlock; 309 u64 instruction_stsch; 310 u64 instruction_chsc; 311 u64 instruction_stsi; 312 u64 instruction_stfl; 313 u64 instruction_tprot; 314 u64 instruction_sie; 315 u64 instruction_essa; 316 u64 instruction_sthyi; 317 u64 instruction_sigp_sense; 318 u64 instruction_sigp_sense_running; 319 u64 instruction_sigp_external_call; 320 u64 instruction_sigp_emergency; 321 u64 instruction_sigp_cond_emergency; 322 u64 instruction_sigp_start; 323 u64 instruction_sigp_stop; 324 u64 instruction_sigp_stop_store_status; 325 u64 instruction_sigp_store_status; 326 u64 instruction_sigp_store_adtl_status; 327 u64 instruction_sigp_arch; 328 u64 instruction_sigp_prefix; 329 u64 instruction_sigp_restart; 330 u64 instruction_sigp_init_cpu_reset; 331 u64 instruction_sigp_cpu_reset; 332 u64 instruction_sigp_unknown; 333 u64 diagnose_10; 334 u64 diagnose_44; 335 u64 diagnose_9c; 336 u64 diagnose_258; 337 u64 diagnose_308; 338 u64 diagnose_500; 339 }; 340 341 #define PGM_OPERATION 0x01 342 #define PGM_PRIVILEGED_OP 0x02 343 #define PGM_EXECUTE 0x03 344 #define PGM_PROTECTION 0x04 345 #define PGM_ADDRESSING 0x05 346 #define PGM_SPECIFICATION 0x06 347 #define PGM_DATA 0x07 348 #define PGM_FIXED_POINT_OVERFLOW 0x08 349 #define PGM_FIXED_POINT_DIVIDE 0x09 350 #define PGM_DECIMAL_OVERFLOW 0x0a 351 #define PGM_DECIMAL_DIVIDE 0x0b 352 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 353 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 354 #define PGM_HFP_SIGNIFICANCE 0x0e 355 #define PGM_HFP_DIVIDE 0x0f 356 #define PGM_SEGMENT_TRANSLATION 0x10 357 #define PGM_PAGE_TRANSLATION 0x11 358 #define PGM_TRANSLATION_SPEC 0x12 359 #define PGM_SPECIAL_OPERATION 0x13 360 #define PGM_OPERAND 0x15 361 #define PGM_TRACE_TABEL 0x16 362 #define PGM_VECTOR_PROCESSING 0x1b 363 #define PGM_SPACE_SWITCH 0x1c 364 #define PGM_HFP_SQUARE_ROOT 0x1d 365 #define PGM_PC_TRANSLATION_SPEC 0x1f 366 #define PGM_AFX_TRANSLATION 0x20 367 #define PGM_ASX_TRANSLATION 0x21 368 #define PGM_LX_TRANSLATION 0x22 369 #define PGM_EX_TRANSLATION 0x23 370 #define PGM_PRIMARY_AUTHORITY 0x24 371 #define PGM_SECONDARY_AUTHORITY 0x25 372 #define PGM_LFX_TRANSLATION 0x26 373 #define PGM_LSX_TRANSLATION 0x27 374 #define PGM_ALET_SPECIFICATION 0x28 375 #define PGM_ALEN_TRANSLATION 0x29 376 #define PGM_ALE_SEQUENCE 0x2a 377 #define PGM_ASTE_VALIDITY 0x2b 378 #define PGM_ASTE_SEQUENCE 0x2c 379 #define PGM_EXTENDED_AUTHORITY 0x2d 380 #define PGM_LSTE_SEQUENCE 0x2e 381 #define PGM_ASTE_INSTANCE 0x2f 382 #define PGM_STACK_FULL 0x30 383 #define PGM_STACK_EMPTY 0x31 384 #define PGM_STACK_SPECIFICATION 0x32 385 #define PGM_STACK_TYPE 0x33 386 #define PGM_STACK_OPERATION 0x34 387 #define PGM_ASCE_TYPE 0x38 388 #define PGM_REGION_FIRST_TRANS 0x39 389 #define PGM_REGION_SECOND_TRANS 0x3a 390 #define PGM_REGION_THIRD_TRANS 0x3b 391 #define PGM_MONITOR 0x40 392 #define PGM_PER 0x80 393 #define PGM_CRYPTO_OPERATION 0x119 394 395 /* irq types in order of priority */ 396 enum irq_types { 397 IRQ_PEND_MCHK_EX = 0, 398 IRQ_PEND_SVC, 399 IRQ_PEND_PROG, 400 IRQ_PEND_MCHK_REP, 401 IRQ_PEND_EXT_IRQ_KEY, 402 IRQ_PEND_EXT_MALFUNC, 403 IRQ_PEND_EXT_EMERGENCY, 404 IRQ_PEND_EXT_EXTERNAL, 405 IRQ_PEND_EXT_CLOCK_COMP, 406 IRQ_PEND_EXT_CPU_TIMER, 407 IRQ_PEND_EXT_TIMING, 408 IRQ_PEND_EXT_SERVICE, 409 IRQ_PEND_EXT_HOST, 410 IRQ_PEND_PFAULT_INIT, 411 IRQ_PEND_PFAULT_DONE, 412 IRQ_PEND_VIRTIO, 413 IRQ_PEND_IO_ISC_0, 414 IRQ_PEND_IO_ISC_1, 415 IRQ_PEND_IO_ISC_2, 416 IRQ_PEND_IO_ISC_3, 417 IRQ_PEND_IO_ISC_4, 418 IRQ_PEND_IO_ISC_5, 419 IRQ_PEND_IO_ISC_6, 420 IRQ_PEND_IO_ISC_7, 421 IRQ_PEND_SIGP_STOP, 422 IRQ_PEND_RESTART, 423 IRQ_PEND_SET_PREFIX, 424 IRQ_PEND_COUNT 425 }; 426 427 /* We have 2M for virtio device descriptor pages. Smallest amount of 428 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 429 */ 430 #define KVM_S390_MAX_VIRTIO_IRQS 87381 431 432 /* 433 * Repressible (non-floating) machine check interrupts 434 * subclass bits in MCIC 435 */ 436 #define MCHK_EXTD_BIT 58 437 #define MCHK_DEGR_BIT 56 438 #define MCHK_WARN_BIT 55 439 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 440 (1UL << MCHK_EXTD_BIT) | \ 441 (1UL << MCHK_WARN_BIT)) 442 443 /* Exigent machine check interrupts subclass bits in MCIC */ 444 #define MCHK_SD_BIT 63 445 #define MCHK_PD_BIT 62 446 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 447 448 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 449 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 450 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 451 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 452 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 453 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 454 (1UL << IRQ_PEND_EXT_TIMING) | \ 455 (1UL << IRQ_PEND_EXT_HOST) | \ 456 (1UL << IRQ_PEND_EXT_SERVICE) | \ 457 (1UL << IRQ_PEND_VIRTIO) | \ 458 (1UL << IRQ_PEND_PFAULT_INIT) | \ 459 (1UL << IRQ_PEND_PFAULT_DONE)) 460 461 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 462 (1UL << IRQ_PEND_IO_ISC_1) | \ 463 (1UL << IRQ_PEND_IO_ISC_2) | \ 464 (1UL << IRQ_PEND_IO_ISC_3) | \ 465 (1UL << IRQ_PEND_IO_ISC_4) | \ 466 (1UL << IRQ_PEND_IO_ISC_5) | \ 467 (1UL << IRQ_PEND_IO_ISC_6) | \ 468 (1UL << IRQ_PEND_IO_ISC_7)) 469 470 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 471 (1UL << IRQ_PEND_MCHK_EX)) 472 473 struct kvm_s390_interrupt_info { 474 struct list_head list; 475 u64 type; 476 union { 477 struct kvm_s390_io_info io; 478 struct kvm_s390_ext_info ext; 479 struct kvm_s390_pgm_info pgm; 480 struct kvm_s390_emerg_info emerg; 481 struct kvm_s390_extcall_info extcall; 482 struct kvm_s390_prefix_info prefix; 483 struct kvm_s390_stop_info stop; 484 struct kvm_s390_mchk_info mchk; 485 }; 486 }; 487 488 struct kvm_s390_irq_payload { 489 struct kvm_s390_io_info io; 490 struct kvm_s390_ext_info ext; 491 struct kvm_s390_pgm_info pgm; 492 struct kvm_s390_emerg_info emerg; 493 struct kvm_s390_extcall_info extcall; 494 struct kvm_s390_prefix_info prefix; 495 struct kvm_s390_stop_info stop; 496 struct kvm_s390_mchk_info mchk; 497 }; 498 499 struct kvm_s390_local_interrupt { 500 spinlock_t lock; 501 struct kvm_s390_float_interrupt *float_int; 502 struct swait_queue_head *wq; 503 atomic_t *cpuflags; 504 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 505 struct kvm_s390_irq_payload irq; 506 unsigned long pending_irqs; 507 }; 508 509 #define FIRQ_LIST_IO_ISC_0 0 510 #define FIRQ_LIST_IO_ISC_1 1 511 #define FIRQ_LIST_IO_ISC_2 2 512 #define FIRQ_LIST_IO_ISC_3 3 513 #define FIRQ_LIST_IO_ISC_4 4 514 #define FIRQ_LIST_IO_ISC_5 5 515 #define FIRQ_LIST_IO_ISC_6 6 516 #define FIRQ_LIST_IO_ISC_7 7 517 #define FIRQ_LIST_PFAULT 8 518 #define FIRQ_LIST_VIRTIO 9 519 #define FIRQ_LIST_COUNT 10 520 #define FIRQ_CNTR_IO 0 521 #define FIRQ_CNTR_SERVICE 1 522 #define FIRQ_CNTR_VIRTIO 2 523 #define FIRQ_CNTR_PFAULT 3 524 #define FIRQ_MAX_COUNT 4 525 526 /* mask the AIS mode for a given ISC */ 527 #define AIS_MODE_MASK(isc) (0x80 >> isc) 528 529 #define KVM_S390_AIS_MODE_ALL 0 530 #define KVM_S390_AIS_MODE_SINGLE 1 531 532 struct kvm_s390_float_interrupt { 533 unsigned long pending_irqs; 534 spinlock_t lock; 535 struct list_head lists[FIRQ_LIST_COUNT]; 536 int counters[FIRQ_MAX_COUNT]; 537 struct kvm_s390_mchk_info mchk; 538 struct kvm_s390_ext_info srv_signal; 539 int next_rr_cpu; 540 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; 541 struct mutex ais_lock; 542 u8 simm; 543 u8 nimm; 544 }; 545 546 struct kvm_hw_wp_info_arch { 547 unsigned long addr; 548 unsigned long phys_addr; 549 int len; 550 char *old_data; 551 }; 552 553 struct kvm_hw_bp_info_arch { 554 unsigned long addr; 555 int len; 556 }; 557 558 /* 559 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 560 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 561 * arch/s390/include/uapi/asm/kvm.h 562 */ 563 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 564 565 #define guestdbg_enabled(vcpu) \ 566 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 567 #define guestdbg_sstep_enabled(vcpu) \ 568 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 569 #define guestdbg_hw_bp_enabled(vcpu) \ 570 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 571 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 572 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 573 574 struct kvm_guestdbg_info_arch { 575 unsigned long cr0; 576 unsigned long cr9; 577 unsigned long cr10; 578 unsigned long cr11; 579 struct kvm_hw_bp_info_arch *hw_bp_info; 580 struct kvm_hw_wp_info_arch *hw_wp_info; 581 int nr_hw_bp; 582 int nr_hw_wp; 583 unsigned long last_bp; 584 }; 585 586 struct kvm_vcpu_arch { 587 struct kvm_s390_sie_block *sie_block; 588 /* if vsie is active, currently executed shadow sie control block */ 589 struct kvm_s390_sie_block *vsie_block; 590 unsigned int host_acrs[NUM_ACRS]; 591 struct gs_cb *host_gscb; 592 struct fpu host_fpregs; 593 struct kvm_s390_local_interrupt local_int; 594 struct hrtimer ckc_timer; 595 struct kvm_s390_pgm_info pgm; 596 struct gmap *gmap; 597 /* backup location for the currently enabled gmap when scheduled out */ 598 struct gmap *enabled_gmap; 599 struct kvm_guestdbg_info_arch guestdbg; 600 unsigned long pfault_token; 601 unsigned long pfault_select; 602 unsigned long pfault_compare; 603 bool cputm_enabled; 604 /* 605 * The seqcount protects updates to cputm_start and sie_block.cputm, 606 * this way we can have non-blocking reads with consistent values. 607 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 608 * values and to start/stop/enable/disable cpu timer accounting. 609 */ 610 seqcount_t cputm_seqcount; 611 __u64 cputm_start; 612 bool gs_enabled; 613 }; 614 615 struct kvm_vm_stat { 616 ulong remote_tlb_flush; 617 }; 618 619 struct kvm_arch_memory_slot { 620 }; 621 622 struct s390_map_info { 623 struct list_head list; 624 __u64 guest_addr; 625 __u64 addr; 626 struct page *page; 627 }; 628 629 struct s390_io_adapter { 630 unsigned int id; 631 int isc; 632 bool maskable; 633 bool masked; 634 bool swap; 635 bool suppressible; 636 struct rw_semaphore maps_lock; 637 struct list_head maps; 638 atomic_t nr_maps; 639 }; 640 641 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 642 #define MAX_S390_ADAPTER_MAPS 256 643 644 /* maximum size of facilities and facility mask is 2k bytes */ 645 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 646 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 647 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 648 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 649 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 650 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 651 652 struct kvm_s390_cpu_model { 653 /* facility mask supported by kvm & hosting machine */ 654 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 655 /* facility list requested by guest (in dma page) */ 656 __u64 *fac_list; 657 u64 cpuid; 658 unsigned short ibc; 659 }; 660 661 struct kvm_s390_crypto { 662 struct kvm_s390_crypto_cb *crycb; 663 __u32 crycbd; 664 __u8 aes_kw; 665 __u8 dea_kw; 666 }; 667 668 struct kvm_s390_crypto_cb { 669 __u8 reserved00[72]; /* 0x0000 */ 670 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 671 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 672 __u8 reserved80[128]; /* 0x0080 */ 673 }; 674 675 /* 676 * sie_page2 has to be allocated as DMA because fac_list and crycb need 677 * 31bit addresses in the sie control block. 678 */ 679 struct sie_page2 { 680 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 681 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 682 u8 reserved900[0x1000 - 0x900]; /* 0x0900 */ 683 } __packed; 684 685 struct kvm_s390_vsie { 686 struct mutex mutex; 687 struct radix_tree_root addr_to_page; 688 int page_count; 689 int next; 690 struct page *pages[KVM_MAX_VCPUS]; 691 }; 692 693 struct kvm_arch{ 694 void *sca; 695 int use_esca; 696 rwlock_t sca_lock; 697 debug_info_t *dbf; 698 struct kvm_s390_float_interrupt float_int; 699 struct kvm_device *flic; 700 struct gmap *gmap; 701 unsigned long mem_limit; 702 int css_support; 703 int use_irqchip; 704 int use_cmma; 705 int user_cpu_state_ctrl; 706 int user_sigp; 707 int user_stsi; 708 int user_instr0; 709 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 710 wait_queue_head_t ipte_wq; 711 int ipte_lock_count; 712 struct mutex ipte_mutex; 713 struct ratelimit_state sthyi_limit; 714 spinlock_t start_stop_lock; 715 struct sie_page2 *sie_page2; 716 struct kvm_s390_cpu_model model; 717 struct kvm_s390_crypto crypto; 718 struct kvm_s390_vsie vsie; 719 u64 epoch; 720 /* subset of available cpu features enabled by user space */ 721 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 722 }; 723 724 #define KVM_HVA_ERR_BAD (-1UL) 725 #define KVM_HVA_ERR_RO_BAD (-2UL) 726 727 static inline bool kvm_is_error_hva(unsigned long addr) 728 { 729 return IS_ERR_VALUE(addr); 730 } 731 732 #define ASYNC_PF_PER_VCPU 64 733 struct kvm_arch_async_pf { 734 unsigned long pfault_token; 735 }; 736 737 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 738 739 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 740 struct kvm_async_pf *work); 741 742 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 743 struct kvm_async_pf *work); 744 745 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 746 struct kvm_async_pf *work); 747 748 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 749 extern char sie_exit; 750 751 static inline void kvm_arch_hardware_disable(void) {} 752 static inline void kvm_arch_check_processor_compat(void *rtn) {} 753 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 754 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 755 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 756 static inline void kvm_arch_free_memslot(struct kvm *kvm, 757 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 758 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {} 759 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 760 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 761 struct kvm_memory_slot *slot) {} 762 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 763 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 764 765 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 766 767 #endif 768