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 29 #define KVM_S390_BSCA_CPU_SLOTS 64 30 #define KVM_S390_ESCA_CPU_SLOTS 248 31 #define KVM_MAX_VCPUS KVM_S390_ESCA_CPU_SLOTS 32 #define KVM_USER_MEM_SLOTS 32 33 34 /* 35 * These seem to be used for allocating ->chip in the routing table, 36 * which we don't use. 4096 is an out-of-thin-air value. If we need 37 * to look at ->chip later on, we'll need to revisit this. 38 */ 39 #define KVM_NR_IRQCHIPS 1 40 #define KVM_IRQCHIP_NUM_PINS 4096 41 #define KVM_HALT_POLL_NS_DEFAULT 80000 42 43 /* s390-specific vcpu->requests bit members */ 44 #define KVM_REQ_ENABLE_IBS 8 45 #define KVM_REQ_DISABLE_IBS 9 46 #define KVM_REQ_ICPT_OPEREXC 10 47 48 #define SIGP_CTRL_C 0x80 49 #define SIGP_CTRL_SCN_MASK 0x3f 50 51 union bsca_sigp_ctrl { 52 __u8 value; 53 struct { 54 __u8 c : 1; 55 __u8 r : 1; 56 __u8 scn : 6; 57 }; 58 } __packed; 59 60 union esca_sigp_ctrl { 61 __u16 value; 62 struct { 63 __u8 c : 1; 64 __u8 reserved: 7; 65 __u8 scn; 66 }; 67 } __packed; 68 69 struct esca_entry { 70 union esca_sigp_ctrl sigp_ctrl; 71 __u16 reserved1[3]; 72 __u64 sda; 73 __u64 reserved2[6]; 74 } __packed; 75 76 struct bsca_entry { 77 __u8 reserved0; 78 union bsca_sigp_ctrl sigp_ctrl; 79 __u16 reserved[3]; 80 __u64 sda; 81 __u64 reserved2[2]; 82 } __attribute__((packed)); 83 84 union ipte_control { 85 unsigned long val; 86 struct { 87 unsigned long k : 1; 88 unsigned long kh : 31; 89 unsigned long kg : 32; 90 }; 91 }; 92 93 struct bsca_block { 94 union ipte_control ipte_control; 95 __u64 reserved[5]; 96 __u64 mcn; 97 __u64 reserved2; 98 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS]; 99 } __attribute__((packed)); 100 101 struct esca_block { 102 union ipte_control ipte_control; 103 __u64 reserved1[7]; 104 __u64 mcn[4]; 105 __u64 reserved2[20]; 106 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS]; 107 } __packed; 108 109 #define CPUSTAT_STOPPED 0x80000000 110 #define CPUSTAT_WAIT 0x10000000 111 #define CPUSTAT_ECALL_PEND 0x08000000 112 #define CPUSTAT_STOP_INT 0x04000000 113 #define CPUSTAT_IO_INT 0x02000000 114 #define CPUSTAT_EXT_INT 0x01000000 115 #define CPUSTAT_RUNNING 0x00800000 116 #define CPUSTAT_RETAINED 0x00400000 117 #define CPUSTAT_TIMING_SUB 0x00020000 118 #define CPUSTAT_SIE_SUB 0x00010000 119 #define CPUSTAT_RRF 0x00008000 120 #define CPUSTAT_SLSV 0x00004000 121 #define CPUSTAT_SLSR 0x00002000 122 #define CPUSTAT_ZARCH 0x00000800 123 #define CPUSTAT_MCDS 0x00000100 124 #define CPUSTAT_SM 0x00000080 125 #define CPUSTAT_IBS 0x00000040 126 #define CPUSTAT_GED2 0x00000010 127 #define CPUSTAT_G 0x00000008 128 #define CPUSTAT_GED 0x00000004 129 #define CPUSTAT_J 0x00000002 130 #define CPUSTAT_P 0x00000001 131 132 struct kvm_s390_sie_block { 133 atomic_t cpuflags; /* 0x0000 */ 134 __u32 : 1; /* 0x0004 */ 135 __u32 prefix : 18; 136 __u32 : 1; 137 __u32 ibc : 12; 138 __u8 reserved08[4]; /* 0x0008 */ 139 #define PROG_IN_SIE (1<<0) 140 __u32 prog0c; /* 0x000c */ 141 __u8 reserved10[16]; /* 0x0010 */ 142 #define PROG_BLOCK_SIE (1<<0) 143 #define PROG_REQUEST (1<<1) 144 atomic_t prog20; /* 0x0020 */ 145 __u8 reserved24[4]; /* 0x0024 */ 146 __u64 cputm; /* 0x0028 */ 147 __u64 ckc; /* 0x0030 */ 148 __u64 epoch; /* 0x0038 */ 149 __u32 svcc; /* 0x0040 */ 150 #define LCTL_CR0 0x8000 151 #define LCTL_CR6 0x0200 152 #define LCTL_CR9 0x0040 153 #define LCTL_CR10 0x0020 154 #define LCTL_CR11 0x0010 155 #define LCTL_CR14 0x0002 156 __u16 lctl; /* 0x0044 */ 157 __s16 icpua; /* 0x0046 */ 158 #define ICTL_OPEREXC 0x80000000 159 #define ICTL_PINT 0x20000000 160 #define ICTL_LPSW 0x00400000 161 #define ICTL_STCTL 0x00040000 162 #define ICTL_ISKE 0x00004000 163 #define ICTL_SSKE 0x00002000 164 #define ICTL_RRBE 0x00001000 165 #define ICTL_TPROT 0x00000200 166 __u32 ictl; /* 0x0048 */ 167 __u32 eca; /* 0x004c */ 168 #define ICPT_INST 0x04 169 #define ICPT_PROGI 0x08 170 #define ICPT_INSTPROGI 0x0C 171 #define ICPT_EXTINT 0x14 172 #define ICPT_VALIDITY 0x20 173 #define ICPT_STOP 0x28 174 #define ICPT_OPEREXC 0x2C 175 #define ICPT_PARTEXEC 0x38 176 #define ICPT_IOINST 0x40 177 __u8 icptcode; /* 0x0050 */ 178 __u8 icptstatus; /* 0x0051 */ 179 __u16 ihcpu; /* 0x0052 */ 180 __u8 reserved54[2]; /* 0x0054 */ 181 __u16 ipa; /* 0x0056 */ 182 __u32 ipb; /* 0x0058 */ 183 __u32 scaoh; /* 0x005c */ 184 __u8 reserved60; /* 0x0060 */ 185 __u8 ecb; /* 0x0061 */ 186 __u8 ecb2; /* 0x0062 */ 187 #define ECB3_AES 0x04 188 #define ECB3_DEA 0x08 189 __u8 ecb3; /* 0x0063 */ 190 __u32 scaol; /* 0x0064 */ 191 __u8 reserved68[4]; /* 0x0068 */ 192 __u32 todpr; /* 0x006c */ 193 __u8 reserved70[16]; /* 0x0070 */ 194 __u64 mso; /* 0x0080 */ 195 __u64 msl; /* 0x0088 */ 196 psw_t gpsw; /* 0x0090 */ 197 __u64 gg14; /* 0x00a0 */ 198 __u64 gg15; /* 0x00a8 */ 199 __u8 reservedb0[20]; /* 0x00b0 */ 200 __u16 extcpuaddr; /* 0x00c4 */ 201 __u16 eic; /* 0x00c6 */ 202 __u32 reservedc8; /* 0x00c8 */ 203 __u16 pgmilc; /* 0x00cc */ 204 __u16 iprcc; /* 0x00ce */ 205 __u32 dxc; /* 0x00d0 */ 206 __u16 mcn; /* 0x00d4 */ 207 __u8 perc; /* 0x00d6 */ 208 __u8 peratmid; /* 0x00d7 */ 209 __u64 peraddr; /* 0x00d8 */ 210 __u8 eai; /* 0x00e0 */ 211 __u8 peraid; /* 0x00e1 */ 212 __u8 oai; /* 0x00e2 */ 213 __u8 armid; /* 0x00e3 */ 214 __u8 reservede4[4]; /* 0x00e4 */ 215 __u64 tecmc; /* 0x00e8 */ 216 __u8 reservedf0[12]; /* 0x00f0 */ 217 #define CRYCB_FORMAT1 0x00000001 218 #define CRYCB_FORMAT2 0x00000003 219 __u32 crycbd; /* 0x00fc */ 220 __u64 gcr[16]; /* 0x0100 */ 221 __u64 gbea; /* 0x0180 */ 222 __u8 reserved188[24]; /* 0x0188 */ 223 __u32 fac; /* 0x01a0 */ 224 __u8 reserved1a4[20]; /* 0x01a4 */ 225 __u64 cbrlo; /* 0x01b8 */ 226 __u8 reserved1c0[8]; /* 0x01c0 */ 227 __u32 ecd; /* 0x01c8 */ 228 __u8 reserved1cc[18]; /* 0x01cc */ 229 __u64 pp; /* 0x01de */ 230 __u8 reserved1e6[2]; /* 0x01e6 */ 231 __u64 itdba; /* 0x01e8 */ 232 __u64 riccbd; /* 0x01f0 */ 233 __u64 gvrd; /* 0x01f8 */ 234 } __attribute__((packed)); 235 236 struct kvm_s390_itdb { 237 __u8 data[256]; 238 } __packed; 239 240 struct sie_page { 241 struct kvm_s390_sie_block sie_block; 242 __u8 reserved200[1024]; /* 0x0200 */ 243 struct kvm_s390_itdb itdb; /* 0x0600 */ 244 __u8 reserved700[2304]; /* 0x0700 */ 245 } __packed; 246 247 struct kvm_vcpu_stat { 248 u32 exit_userspace; 249 u32 exit_null; 250 u32 exit_external_request; 251 u32 exit_external_interrupt; 252 u32 exit_stop_request; 253 u32 exit_validity; 254 u32 exit_instruction; 255 u32 exit_pei; 256 u32 halt_successful_poll; 257 u32 halt_attempted_poll; 258 u32 halt_poll_invalid; 259 u32 halt_wakeup; 260 u32 instruction_lctl; 261 u32 instruction_lctlg; 262 u32 instruction_stctl; 263 u32 instruction_stctg; 264 u32 exit_program_interruption; 265 u32 exit_instr_and_program; 266 u32 exit_operation_exception; 267 u32 deliver_external_call; 268 u32 deliver_emergency_signal; 269 u32 deliver_service_signal; 270 u32 deliver_virtio_interrupt; 271 u32 deliver_stop_signal; 272 u32 deliver_prefix_signal; 273 u32 deliver_restart_signal; 274 u32 deliver_program_int; 275 u32 deliver_io_int; 276 u32 exit_wait_state; 277 u32 instruction_pfmf; 278 u32 instruction_stidp; 279 u32 instruction_spx; 280 u32 instruction_stpx; 281 u32 instruction_stap; 282 u32 instruction_storage_key; 283 u32 instruction_ipte_interlock; 284 u32 instruction_stsch; 285 u32 instruction_chsc; 286 u32 instruction_stsi; 287 u32 instruction_stfl; 288 u32 instruction_tprot; 289 u32 instruction_sie; 290 u32 instruction_essa; 291 u32 instruction_sthyi; 292 u32 instruction_sigp_sense; 293 u32 instruction_sigp_sense_running; 294 u32 instruction_sigp_external_call; 295 u32 instruction_sigp_emergency; 296 u32 instruction_sigp_cond_emergency; 297 u32 instruction_sigp_start; 298 u32 instruction_sigp_stop; 299 u32 instruction_sigp_stop_store_status; 300 u32 instruction_sigp_store_status; 301 u32 instruction_sigp_store_adtl_status; 302 u32 instruction_sigp_arch; 303 u32 instruction_sigp_prefix; 304 u32 instruction_sigp_restart; 305 u32 instruction_sigp_init_cpu_reset; 306 u32 instruction_sigp_cpu_reset; 307 u32 instruction_sigp_unknown; 308 u32 diagnose_10; 309 u32 diagnose_44; 310 u32 diagnose_9c; 311 u32 diagnose_258; 312 u32 diagnose_308; 313 u32 diagnose_500; 314 }; 315 316 #define PGM_OPERATION 0x01 317 #define PGM_PRIVILEGED_OP 0x02 318 #define PGM_EXECUTE 0x03 319 #define PGM_PROTECTION 0x04 320 #define PGM_ADDRESSING 0x05 321 #define PGM_SPECIFICATION 0x06 322 #define PGM_DATA 0x07 323 #define PGM_FIXED_POINT_OVERFLOW 0x08 324 #define PGM_FIXED_POINT_DIVIDE 0x09 325 #define PGM_DECIMAL_OVERFLOW 0x0a 326 #define PGM_DECIMAL_DIVIDE 0x0b 327 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 328 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 329 #define PGM_HFP_SIGNIFICANCE 0x0e 330 #define PGM_HFP_DIVIDE 0x0f 331 #define PGM_SEGMENT_TRANSLATION 0x10 332 #define PGM_PAGE_TRANSLATION 0x11 333 #define PGM_TRANSLATION_SPEC 0x12 334 #define PGM_SPECIAL_OPERATION 0x13 335 #define PGM_OPERAND 0x15 336 #define PGM_TRACE_TABEL 0x16 337 #define PGM_VECTOR_PROCESSING 0x1b 338 #define PGM_SPACE_SWITCH 0x1c 339 #define PGM_HFP_SQUARE_ROOT 0x1d 340 #define PGM_PC_TRANSLATION_SPEC 0x1f 341 #define PGM_AFX_TRANSLATION 0x20 342 #define PGM_ASX_TRANSLATION 0x21 343 #define PGM_LX_TRANSLATION 0x22 344 #define PGM_EX_TRANSLATION 0x23 345 #define PGM_PRIMARY_AUTHORITY 0x24 346 #define PGM_SECONDARY_AUTHORITY 0x25 347 #define PGM_LFX_TRANSLATION 0x26 348 #define PGM_LSX_TRANSLATION 0x27 349 #define PGM_ALET_SPECIFICATION 0x28 350 #define PGM_ALEN_TRANSLATION 0x29 351 #define PGM_ALE_SEQUENCE 0x2a 352 #define PGM_ASTE_VALIDITY 0x2b 353 #define PGM_ASTE_SEQUENCE 0x2c 354 #define PGM_EXTENDED_AUTHORITY 0x2d 355 #define PGM_LSTE_SEQUENCE 0x2e 356 #define PGM_ASTE_INSTANCE 0x2f 357 #define PGM_STACK_FULL 0x30 358 #define PGM_STACK_EMPTY 0x31 359 #define PGM_STACK_SPECIFICATION 0x32 360 #define PGM_STACK_TYPE 0x33 361 #define PGM_STACK_OPERATION 0x34 362 #define PGM_ASCE_TYPE 0x38 363 #define PGM_REGION_FIRST_TRANS 0x39 364 #define PGM_REGION_SECOND_TRANS 0x3a 365 #define PGM_REGION_THIRD_TRANS 0x3b 366 #define PGM_MONITOR 0x40 367 #define PGM_PER 0x80 368 #define PGM_CRYPTO_OPERATION 0x119 369 370 /* irq types in order of priority */ 371 enum irq_types { 372 IRQ_PEND_MCHK_EX = 0, 373 IRQ_PEND_SVC, 374 IRQ_PEND_PROG, 375 IRQ_PEND_MCHK_REP, 376 IRQ_PEND_EXT_IRQ_KEY, 377 IRQ_PEND_EXT_MALFUNC, 378 IRQ_PEND_EXT_EMERGENCY, 379 IRQ_PEND_EXT_EXTERNAL, 380 IRQ_PEND_EXT_CLOCK_COMP, 381 IRQ_PEND_EXT_CPU_TIMER, 382 IRQ_PEND_EXT_TIMING, 383 IRQ_PEND_EXT_SERVICE, 384 IRQ_PEND_EXT_HOST, 385 IRQ_PEND_PFAULT_INIT, 386 IRQ_PEND_PFAULT_DONE, 387 IRQ_PEND_VIRTIO, 388 IRQ_PEND_IO_ISC_0, 389 IRQ_PEND_IO_ISC_1, 390 IRQ_PEND_IO_ISC_2, 391 IRQ_PEND_IO_ISC_3, 392 IRQ_PEND_IO_ISC_4, 393 IRQ_PEND_IO_ISC_5, 394 IRQ_PEND_IO_ISC_6, 395 IRQ_PEND_IO_ISC_7, 396 IRQ_PEND_SIGP_STOP, 397 IRQ_PEND_RESTART, 398 IRQ_PEND_SET_PREFIX, 399 IRQ_PEND_COUNT 400 }; 401 402 /* We have 2M for virtio device descriptor pages. Smallest amount of 403 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 404 */ 405 #define KVM_S390_MAX_VIRTIO_IRQS 87381 406 407 /* 408 * Repressible (non-floating) machine check interrupts 409 * subclass bits in MCIC 410 */ 411 #define MCHK_EXTD_BIT 58 412 #define MCHK_DEGR_BIT 56 413 #define MCHK_WARN_BIT 55 414 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 415 (1UL << MCHK_EXTD_BIT) | \ 416 (1UL << MCHK_WARN_BIT)) 417 418 /* Exigent machine check interrupts subclass bits in MCIC */ 419 #define MCHK_SD_BIT 63 420 #define MCHK_PD_BIT 62 421 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 422 423 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 424 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 425 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 426 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 427 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 428 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 429 (1UL << IRQ_PEND_EXT_TIMING) | \ 430 (1UL << IRQ_PEND_EXT_HOST) | \ 431 (1UL << IRQ_PEND_EXT_SERVICE) | \ 432 (1UL << IRQ_PEND_VIRTIO) | \ 433 (1UL << IRQ_PEND_PFAULT_INIT) | \ 434 (1UL << IRQ_PEND_PFAULT_DONE)) 435 436 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 437 (1UL << IRQ_PEND_IO_ISC_1) | \ 438 (1UL << IRQ_PEND_IO_ISC_2) | \ 439 (1UL << IRQ_PEND_IO_ISC_3) | \ 440 (1UL << IRQ_PEND_IO_ISC_4) | \ 441 (1UL << IRQ_PEND_IO_ISC_5) | \ 442 (1UL << IRQ_PEND_IO_ISC_6) | \ 443 (1UL << IRQ_PEND_IO_ISC_7)) 444 445 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 446 (1UL << IRQ_PEND_MCHK_EX)) 447 448 struct kvm_s390_interrupt_info { 449 struct list_head list; 450 u64 type; 451 union { 452 struct kvm_s390_io_info io; 453 struct kvm_s390_ext_info ext; 454 struct kvm_s390_pgm_info pgm; 455 struct kvm_s390_emerg_info emerg; 456 struct kvm_s390_extcall_info extcall; 457 struct kvm_s390_prefix_info prefix; 458 struct kvm_s390_stop_info stop; 459 struct kvm_s390_mchk_info mchk; 460 }; 461 }; 462 463 struct kvm_s390_irq_payload { 464 struct kvm_s390_io_info io; 465 struct kvm_s390_ext_info ext; 466 struct kvm_s390_pgm_info pgm; 467 struct kvm_s390_emerg_info emerg; 468 struct kvm_s390_extcall_info extcall; 469 struct kvm_s390_prefix_info prefix; 470 struct kvm_s390_stop_info stop; 471 struct kvm_s390_mchk_info mchk; 472 }; 473 474 struct kvm_s390_local_interrupt { 475 spinlock_t lock; 476 struct kvm_s390_float_interrupt *float_int; 477 struct swait_queue_head *wq; 478 atomic_t *cpuflags; 479 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 480 struct kvm_s390_irq_payload irq; 481 unsigned long pending_irqs; 482 }; 483 484 #define FIRQ_LIST_IO_ISC_0 0 485 #define FIRQ_LIST_IO_ISC_1 1 486 #define FIRQ_LIST_IO_ISC_2 2 487 #define FIRQ_LIST_IO_ISC_3 3 488 #define FIRQ_LIST_IO_ISC_4 4 489 #define FIRQ_LIST_IO_ISC_5 5 490 #define FIRQ_LIST_IO_ISC_6 6 491 #define FIRQ_LIST_IO_ISC_7 7 492 #define FIRQ_LIST_PFAULT 8 493 #define FIRQ_LIST_VIRTIO 9 494 #define FIRQ_LIST_COUNT 10 495 #define FIRQ_CNTR_IO 0 496 #define FIRQ_CNTR_SERVICE 1 497 #define FIRQ_CNTR_VIRTIO 2 498 #define FIRQ_CNTR_PFAULT 3 499 #define FIRQ_MAX_COUNT 4 500 501 struct kvm_s390_float_interrupt { 502 unsigned long pending_irqs; 503 spinlock_t lock; 504 struct list_head lists[FIRQ_LIST_COUNT]; 505 int counters[FIRQ_MAX_COUNT]; 506 struct kvm_s390_mchk_info mchk; 507 struct kvm_s390_ext_info srv_signal; 508 int next_rr_cpu; 509 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; 510 }; 511 512 struct kvm_hw_wp_info_arch { 513 unsigned long addr; 514 unsigned long phys_addr; 515 int len; 516 char *old_data; 517 }; 518 519 struct kvm_hw_bp_info_arch { 520 unsigned long addr; 521 int len; 522 }; 523 524 /* 525 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 526 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 527 * arch/s390/include/uapi/asm/kvm.h 528 */ 529 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 530 531 #define guestdbg_enabled(vcpu) \ 532 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 533 #define guestdbg_sstep_enabled(vcpu) \ 534 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 535 #define guestdbg_hw_bp_enabled(vcpu) \ 536 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 537 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 538 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 539 540 struct kvm_guestdbg_info_arch { 541 unsigned long cr0; 542 unsigned long cr9; 543 unsigned long cr10; 544 unsigned long cr11; 545 struct kvm_hw_bp_info_arch *hw_bp_info; 546 struct kvm_hw_wp_info_arch *hw_wp_info; 547 int nr_hw_bp; 548 int nr_hw_wp; 549 unsigned long last_bp; 550 }; 551 552 struct kvm_vcpu_arch { 553 struct kvm_s390_sie_block *sie_block; 554 /* if vsie is active, currently executed shadow sie control block */ 555 struct kvm_s390_sie_block *vsie_block; 556 unsigned int host_acrs[NUM_ACRS]; 557 struct fpu host_fpregs; 558 struct kvm_s390_local_interrupt local_int; 559 struct hrtimer ckc_timer; 560 struct kvm_s390_pgm_info pgm; 561 struct gmap *gmap; 562 /* backup location for the currently enabled gmap when scheduled out */ 563 struct gmap *enabled_gmap; 564 struct kvm_guestdbg_info_arch guestdbg; 565 unsigned long pfault_token; 566 unsigned long pfault_select; 567 unsigned long pfault_compare; 568 bool cputm_enabled; 569 /* 570 * The seqcount protects updates to cputm_start and sie_block.cputm, 571 * this way we can have non-blocking reads with consistent values. 572 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 573 * values and to start/stop/enable/disable cpu timer accounting. 574 */ 575 seqcount_t cputm_seqcount; 576 __u64 cputm_start; 577 }; 578 579 struct kvm_vm_stat { 580 u32 remote_tlb_flush; 581 }; 582 583 struct kvm_arch_memory_slot { 584 }; 585 586 struct s390_map_info { 587 struct list_head list; 588 __u64 guest_addr; 589 __u64 addr; 590 struct page *page; 591 }; 592 593 struct s390_io_adapter { 594 unsigned int id; 595 int isc; 596 bool maskable; 597 bool masked; 598 bool swap; 599 struct rw_semaphore maps_lock; 600 struct list_head maps; 601 atomic_t nr_maps; 602 }; 603 604 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 605 #define MAX_S390_ADAPTER_MAPS 256 606 607 /* maximum size of facilities and facility mask is 2k bytes */ 608 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 609 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 610 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 611 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 612 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 613 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 614 615 struct kvm_s390_cpu_model { 616 /* facility mask supported by kvm & hosting machine */ 617 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 618 /* facility list requested by guest (in dma page) */ 619 __u64 *fac_list; 620 u64 cpuid; 621 unsigned short ibc; 622 }; 623 624 struct kvm_s390_crypto { 625 struct kvm_s390_crypto_cb *crycb; 626 __u32 crycbd; 627 __u8 aes_kw; 628 __u8 dea_kw; 629 }; 630 631 struct kvm_s390_crypto_cb { 632 __u8 reserved00[72]; /* 0x0000 */ 633 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 634 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 635 __u8 reserved80[128]; /* 0x0080 */ 636 }; 637 638 /* 639 * sie_page2 has to be allocated as DMA because fac_list and crycb need 640 * 31bit addresses in the sie control block. 641 */ 642 struct sie_page2 { 643 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 644 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 645 u8 reserved900[0x1000 - 0x900]; /* 0x0900 */ 646 } __packed; 647 648 struct kvm_s390_vsie { 649 struct mutex mutex; 650 struct radix_tree_root addr_to_page; 651 int page_count; 652 int next; 653 struct page *pages[KVM_MAX_VCPUS]; 654 }; 655 656 struct kvm_arch{ 657 void *sca; 658 int use_esca; 659 rwlock_t sca_lock; 660 debug_info_t *dbf; 661 struct kvm_s390_float_interrupt float_int; 662 struct kvm_device *flic; 663 struct gmap *gmap; 664 unsigned long mem_limit; 665 int css_support; 666 int use_irqchip; 667 int use_cmma; 668 int user_cpu_state_ctrl; 669 int user_sigp; 670 int user_stsi; 671 int user_instr0; 672 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 673 wait_queue_head_t ipte_wq; 674 int ipte_lock_count; 675 struct mutex ipte_mutex; 676 struct ratelimit_state sthyi_limit; 677 spinlock_t start_stop_lock; 678 struct sie_page2 *sie_page2; 679 struct kvm_s390_cpu_model model; 680 struct kvm_s390_crypto crypto; 681 struct kvm_s390_vsie vsie; 682 u64 epoch; 683 /* subset of available cpu features enabled by user space */ 684 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 685 }; 686 687 #define KVM_HVA_ERR_BAD (-1UL) 688 #define KVM_HVA_ERR_RO_BAD (-2UL) 689 690 static inline bool kvm_is_error_hva(unsigned long addr) 691 { 692 return IS_ERR_VALUE(addr); 693 } 694 695 #define ASYNC_PF_PER_VCPU 64 696 struct kvm_arch_async_pf { 697 unsigned long pfault_token; 698 }; 699 700 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 701 702 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 703 struct kvm_async_pf *work); 704 705 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 706 struct kvm_async_pf *work); 707 708 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 709 struct kvm_async_pf *work); 710 711 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 712 extern char sie_exit; 713 714 static inline void kvm_arch_hardware_disable(void) {} 715 static inline void kvm_arch_check_processor_compat(void *rtn) {} 716 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 717 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 718 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 719 static inline void kvm_arch_free_memslot(struct kvm *kvm, 720 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 721 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {} 722 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 723 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 724 struct kvm_memory_slot *slot) {} 725 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 726 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 727 728 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 729 730 #endif 731