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 <asm/debug.h> 24 #include <asm/cpu.h> 25 #include <asm/isc.h> 26 27 #define KVM_MAX_VCPUS 64 28 #define KVM_USER_MEM_SLOTS 32 29 30 /* 31 * These seem to be used for allocating ->chip in the routing table, 32 * which we don't use. 4096 is an out-of-thin-air value. If we need 33 * to look at ->chip later on, we'll need to revisit this. 34 */ 35 #define KVM_NR_IRQCHIPS 1 36 #define KVM_IRQCHIP_NUM_PINS 4096 37 38 #define SIGP_CTRL_C 0x80 39 #define SIGP_CTRL_SCN_MASK 0x3f 40 41 struct sca_entry { 42 __u8 reserved0; 43 __u8 sigp_ctrl; 44 __u16 reserved[3]; 45 __u64 sda; 46 __u64 reserved2[2]; 47 } __attribute__((packed)); 48 49 union ipte_control { 50 unsigned long val; 51 struct { 52 unsigned long k : 1; 53 unsigned long kh : 31; 54 unsigned long kg : 32; 55 }; 56 }; 57 58 struct sca_block { 59 union ipte_control ipte_control; 60 __u64 reserved[5]; 61 __u64 mcn; 62 __u64 reserved2; 63 struct sca_entry cpu[64]; 64 } __attribute__((packed)); 65 66 #define CPUSTAT_STOPPED 0x80000000 67 #define CPUSTAT_WAIT 0x10000000 68 #define CPUSTAT_ECALL_PEND 0x08000000 69 #define CPUSTAT_STOP_INT 0x04000000 70 #define CPUSTAT_IO_INT 0x02000000 71 #define CPUSTAT_EXT_INT 0x01000000 72 #define CPUSTAT_RUNNING 0x00800000 73 #define CPUSTAT_RETAINED 0x00400000 74 #define CPUSTAT_TIMING_SUB 0x00020000 75 #define CPUSTAT_SIE_SUB 0x00010000 76 #define CPUSTAT_RRF 0x00008000 77 #define CPUSTAT_SLSV 0x00004000 78 #define CPUSTAT_SLSR 0x00002000 79 #define CPUSTAT_ZARCH 0x00000800 80 #define CPUSTAT_MCDS 0x00000100 81 #define CPUSTAT_SM 0x00000080 82 #define CPUSTAT_IBS 0x00000040 83 #define CPUSTAT_GED2 0x00000010 84 #define CPUSTAT_G 0x00000008 85 #define CPUSTAT_GED 0x00000004 86 #define CPUSTAT_J 0x00000002 87 #define CPUSTAT_P 0x00000001 88 89 struct kvm_s390_sie_block { 90 atomic_t cpuflags; /* 0x0000 */ 91 __u32 : 1; /* 0x0004 */ 92 __u32 prefix : 18; 93 __u32 : 1; 94 __u32 ibc : 12; 95 __u8 reserved08[4]; /* 0x0008 */ 96 #define PROG_IN_SIE (1<<0) 97 __u32 prog0c; /* 0x000c */ 98 __u8 reserved10[16]; /* 0x0010 */ 99 #define PROG_BLOCK_SIE (1<<0) 100 #define PROG_REQUEST (1<<1) 101 atomic_t prog20; /* 0x0020 */ 102 __u8 reserved24[4]; /* 0x0024 */ 103 __u64 cputm; /* 0x0028 */ 104 __u64 ckc; /* 0x0030 */ 105 __u64 epoch; /* 0x0038 */ 106 __u8 reserved40[4]; /* 0x0040 */ 107 #define LCTL_CR0 0x8000 108 #define LCTL_CR6 0x0200 109 #define LCTL_CR9 0x0040 110 #define LCTL_CR10 0x0020 111 #define LCTL_CR11 0x0010 112 #define LCTL_CR14 0x0002 113 __u16 lctl; /* 0x0044 */ 114 __s16 icpua; /* 0x0046 */ 115 #define ICTL_PINT 0x20000000 116 #define ICTL_LPSW 0x00400000 117 #define ICTL_STCTL 0x00040000 118 #define ICTL_ISKE 0x00004000 119 #define ICTL_SSKE 0x00002000 120 #define ICTL_RRBE 0x00001000 121 #define ICTL_TPROT 0x00000200 122 __u32 ictl; /* 0x0048 */ 123 __u32 eca; /* 0x004c */ 124 #define ICPT_INST 0x04 125 #define ICPT_PROGI 0x08 126 #define ICPT_INSTPROGI 0x0C 127 #define ICPT_OPEREXC 0x2C 128 #define ICPT_PARTEXEC 0x38 129 #define ICPT_IOINST 0x40 130 __u8 icptcode; /* 0x0050 */ 131 __u8 icptstatus; /* 0x0051 */ 132 __u16 ihcpu; /* 0x0052 */ 133 __u8 reserved54[2]; /* 0x0054 */ 134 __u16 ipa; /* 0x0056 */ 135 __u32 ipb; /* 0x0058 */ 136 __u32 scaoh; /* 0x005c */ 137 __u8 reserved60; /* 0x0060 */ 138 __u8 ecb; /* 0x0061 */ 139 __u8 ecb2; /* 0x0062 */ 140 #define ECB3_AES 0x04 141 #define ECB3_DEA 0x08 142 __u8 ecb3; /* 0x0063 */ 143 __u32 scaol; /* 0x0064 */ 144 __u8 reserved68[4]; /* 0x0068 */ 145 __u32 todpr; /* 0x006c */ 146 __u8 reserved70[32]; /* 0x0070 */ 147 psw_t gpsw; /* 0x0090 */ 148 __u64 gg14; /* 0x00a0 */ 149 __u64 gg15; /* 0x00a8 */ 150 __u8 reservedb0[20]; /* 0x00b0 */ 151 __u16 extcpuaddr; /* 0x00c4 */ 152 __u16 eic; /* 0x00c6 */ 153 __u32 reservedc8; /* 0x00c8 */ 154 __u16 pgmilc; /* 0x00cc */ 155 __u16 iprcc; /* 0x00ce */ 156 __u32 dxc; /* 0x00d0 */ 157 __u16 mcn; /* 0x00d4 */ 158 __u8 perc; /* 0x00d6 */ 159 __u8 peratmid; /* 0x00d7 */ 160 __u64 peraddr; /* 0x00d8 */ 161 __u8 eai; /* 0x00e0 */ 162 __u8 peraid; /* 0x00e1 */ 163 __u8 oai; /* 0x00e2 */ 164 __u8 armid; /* 0x00e3 */ 165 __u8 reservede4[4]; /* 0x00e4 */ 166 __u64 tecmc; /* 0x00e8 */ 167 __u8 reservedf0[12]; /* 0x00f0 */ 168 #define CRYCB_FORMAT1 0x00000001 169 #define CRYCB_FORMAT2 0x00000003 170 __u32 crycbd; /* 0x00fc */ 171 __u64 gcr[16]; /* 0x0100 */ 172 __u64 gbea; /* 0x0180 */ 173 __u8 reserved188[24]; /* 0x0188 */ 174 __u32 fac; /* 0x01a0 */ 175 __u8 reserved1a4[20]; /* 0x01a4 */ 176 __u64 cbrlo; /* 0x01b8 */ 177 __u8 reserved1c0[8]; /* 0x01c0 */ 178 __u32 ecd; /* 0x01c8 */ 179 __u8 reserved1cc[18]; /* 0x01cc */ 180 __u64 pp; /* 0x01de */ 181 __u8 reserved1e6[2]; /* 0x01e6 */ 182 __u64 itdba; /* 0x01e8 */ 183 __u8 reserved1f0[16]; /* 0x01f0 */ 184 } __attribute__((packed)); 185 186 struct kvm_s390_itdb { 187 __u8 data[256]; 188 } __packed; 189 190 struct kvm_s390_vregs { 191 __vector128 vrs[32]; 192 __u8 reserved200[512]; /* for future vector expansion */ 193 } __packed; 194 195 struct sie_page { 196 struct kvm_s390_sie_block sie_block; 197 __u8 reserved200[1024]; /* 0x0200 */ 198 struct kvm_s390_itdb itdb; /* 0x0600 */ 199 __u8 reserved700[1280]; /* 0x0700 */ 200 struct kvm_s390_vregs vregs; /* 0x0c00 */ 201 } __packed; 202 203 struct kvm_vcpu_stat { 204 u32 exit_userspace; 205 u32 exit_null; 206 u32 exit_external_request; 207 u32 exit_external_interrupt; 208 u32 exit_stop_request; 209 u32 exit_validity; 210 u32 exit_instruction; 211 u32 halt_successful_poll; 212 u32 halt_wakeup; 213 u32 instruction_lctl; 214 u32 instruction_lctlg; 215 u32 instruction_stctl; 216 u32 instruction_stctg; 217 u32 exit_program_interruption; 218 u32 exit_instr_and_program; 219 u32 deliver_external_call; 220 u32 deliver_emergency_signal; 221 u32 deliver_service_signal; 222 u32 deliver_virtio_interrupt; 223 u32 deliver_stop_signal; 224 u32 deliver_prefix_signal; 225 u32 deliver_restart_signal; 226 u32 deliver_program_int; 227 u32 deliver_io_int; 228 u32 exit_wait_state; 229 u32 instruction_pfmf; 230 u32 instruction_stidp; 231 u32 instruction_spx; 232 u32 instruction_stpx; 233 u32 instruction_stap; 234 u32 instruction_storage_key; 235 u32 instruction_ipte_interlock; 236 u32 instruction_stsch; 237 u32 instruction_chsc; 238 u32 instruction_stsi; 239 u32 instruction_stfl; 240 u32 instruction_tprot; 241 u32 instruction_essa; 242 u32 instruction_sigp_sense; 243 u32 instruction_sigp_sense_running; 244 u32 instruction_sigp_external_call; 245 u32 instruction_sigp_emergency; 246 u32 instruction_sigp_cond_emergency; 247 u32 instruction_sigp_start; 248 u32 instruction_sigp_stop; 249 u32 instruction_sigp_stop_store_status; 250 u32 instruction_sigp_store_status; 251 u32 instruction_sigp_store_adtl_status; 252 u32 instruction_sigp_arch; 253 u32 instruction_sigp_prefix; 254 u32 instruction_sigp_restart; 255 u32 instruction_sigp_init_cpu_reset; 256 u32 instruction_sigp_cpu_reset; 257 u32 instruction_sigp_unknown; 258 u32 diagnose_10; 259 u32 diagnose_44; 260 u32 diagnose_9c; 261 }; 262 263 #define PGM_OPERATION 0x01 264 #define PGM_PRIVILEGED_OP 0x02 265 #define PGM_EXECUTE 0x03 266 #define PGM_PROTECTION 0x04 267 #define PGM_ADDRESSING 0x05 268 #define PGM_SPECIFICATION 0x06 269 #define PGM_DATA 0x07 270 #define PGM_FIXED_POINT_OVERFLOW 0x08 271 #define PGM_FIXED_POINT_DIVIDE 0x09 272 #define PGM_DECIMAL_OVERFLOW 0x0a 273 #define PGM_DECIMAL_DIVIDE 0x0b 274 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 275 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 276 #define PGM_HFP_SIGNIFICANCE 0x0e 277 #define PGM_HFP_DIVIDE 0x0f 278 #define PGM_SEGMENT_TRANSLATION 0x10 279 #define PGM_PAGE_TRANSLATION 0x11 280 #define PGM_TRANSLATION_SPEC 0x12 281 #define PGM_SPECIAL_OPERATION 0x13 282 #define PGM_OPERAND 0x15 283 #define PGM_TRACE_TABEL 0x16 284 #define PGM_VECTOR_PROCESSING 0x1b 285 #define PGM_SPACE_SWITCH 0x1c 286 #define PGM_HFP_SQUARE_ROOT 0x1d 287 #define PGM_PC_TRANSLATION_SPEC 0x1f 288 #define PGM_AFX_TRANSLATION 0x20 289 #define PGM_ASX_TRANSLATION 0x21 290 #define PGM_LX_TRANSLATION 0x22 291 #define PGM_EX_TRANSLATION 0x23 292 #define PGM_PRIMARY_AUTHORITY 0x24 293 #define PGM_SECONDARY_AUTHORITY 0x25 294 #define PGM_LFX_TRANSLATION 0x26 295 #define PGM_LSX_TRANSLATION 0x27 296 #define PGM_ALET_SPECIFICATION 0x28 297 #define PGM_ALEN_TRANSLATION 0x29 298 #define PGM_ALE_SEQUENCE 0x2a 299 #define PGM_ASTE_VALIDITY 0x2b 300 #define PGM_ASTE_SEQUENCE 0x2c 301 #define PGM_EXTENDED_AUTHORITY 0x2d 302 #define PGM_LSTE_SEQUENCE 0x2e 303 #define PGM_ASTE_INSTANCE 0x2f 304 #define PGM_STACK_FULL 0x30 305 #define PGM_STACK_EMPTY 0x31 306 #define PGM_STACK_SPECIFICATION 0x32 307 #define PGM_STACK_TYPE 0x33 308 #define PGM_STACK_OPERATION 0x34 309 #define PGM_ASCE_TYPE 0x38 310 #define PGM_REGION_FIRST_TRANS 0x39 311 #define PGM_REGION_SECOND_TRANS 0x3a 312 #define PGM_REGION_THIRD_TRANS 0x3b 313 #define PGM_MONITOR 0x40 314 #define PGM_PER 0x80 315 #define PGM_CRYPTO_OPERATION 0x119 316 317 /* irq types in order of priority */ 318 enum irq_types { 319 IRQ_PEND_MCHK_EX = 0, 320 IRQ_PEND_SVC, 321 IRQ_PEND_PROG, 322 IRQ_PEND_MCHK_REP, 323 IRQ_PEND_EXT_IRQ_KEY, 324 IRQ_PEND_EXT_MALFUNC, 325 IRQ_PEND_EXT_EMERGENCY, 326 IRQ_PEND_EXT_EXTERNAL, 327 IRQ_PEND_EXT_CLOCK_COMP, 328 IRQ_PEND_EXT_CPU_TIMER, 329 IRQ_PEND_EXT_TIMING, 330 IRQ_PEND_EXT_SERVICE, 331 IRQ_PEND_EXT_HOST, 332 IRQ_PEND_PFAULT_INIT, 333 IRQ_PEND_PFAULT_DONE, 334 IRQ_PEND_VIRTIO, 335 IRQ_PEND_IO_ISC_0, 336 IRQ_PEND_IO_ISC_1, 337 IRQ_PEND_IO_ISC_2, 338 IRQ_PEND_IO_ISC_3, 339 IRQ_PEND_IO_ISC_4, 340 IRQ_PEND_IO_ISC_5, 341 IRQ_PEND_IO_ISC_6, 342 IRQ_PEND_IO_ISC_7, 343 IRQ_PEND_SIGP_STOP, 344 IRQ_PEND_RESTART, 345 IRQ_PEND_SET_PREFIX, 346 IRQ_PEND_COUNT 347 }; 348 349 /* We have 2M for virtio device descriptor pages. Smallest amount of 350 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 351 */ 352 #define KVM_S390_MAX_VIRTIO_IRQS 87381 353 354 /* 355 * Repressible (non-floating) machine check interrupts 356 * subclass bits in MCIC 357 */ 358 #define MCHK_EXTD_BIT 58 359 #define MCHK_DEGR_BIT 56 360 #define MCHK_WARN_BIT 55 361 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 362 (1UL << MCHK_EXTD_BIT) | \ 363 (1UL << MCHK_WARN_BIT)) 364 365 /* Exigent machine check interrupts subclass bits in MCIC */ 366 #define MCHK_SD_BIT 63 367 #define MCHK_PD_BIT 62 368 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 369 370 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 371 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 372 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 373 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 374 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 375 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 376 (1UL << IRQ_PEND_EXT_TIMING) | \ 377 (1UL << IRQ_PEND_EXT_HOST) | \ 378 (1UL << IRQ_PEND_EXT_SERVICE) | \ 379 (1UL << IRQ_PEND_VIRTIO) | \ 380 (1UL << IRQ_PEND_PFAULT_INIT) | \ 381 (1UL << IRQ_PEND_PFAULT_DONE)) 382 383 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 384 (1UL << IRQ_PEND_IO_ISC_1) | \ 385 (1UL << IRQ_PEND_IO_ISC_2) | \ 386 (1UL << IRQ_PEND_IO_ISC_3) | \ 387 (1UL << IRQ_PEND_IO_ISC_4) | \ 388 (1UL << IRQ_PEND_IO_ISC_5) | \ 389 (1UL << IRQ_PEND_IO_ISC_6) | \ 390 (1UL << IRQ_PEND_IO_ISC_7)) 391 392 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 393 (1UL << IRQ_PEND_MCHK_EX)) 394 395 struct kvm_s390_interrupt_info { 396 struct list_head list; 397 u64 type; 398 union { 399 struct kvm_s390_io_info io; 400 struct kvm_s390_ext_info ext; 401 struct kvm_s390_pgm_info pgm; 402 struct kvm_s390_emerg_info emerg; 403 struct kvm_s390_extcall_info extcall; 404 struct kvm_s390_prefix_info prefix; 405 struct kvm_s390_stop_info stop; 406 struct kvm_s390_mchk_info mchk; 407 }; 408 }; 409 410 struct kvm_s390_irq_payload { 411 struct kvm_s390_io_info io; 412 struct kvm_s390_ext_info ext; 413 struct kvm_s390_pgm_info pgm; 414 struct kvm_s390_emerg_info emerg; 415 struct kvm_s390_extcall_info extcall; 416 struct kvm_s390_prefix_info prefix; 417 struct kvm_s390_stop_info stop; 418 struct kvm_s390_mchk_info mchk; 419 }; 420 421 struct kvm_s390_local_interrupt { 422 spinlock_t lock; 423 struct kvm_s390_float_interrupt *float_int; 424 wait_queue_head_t *wq; 425 atomic_t *cpuflags; 426 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 427 struct kvm_s390_irq_payload irq; 428 unsigned long pending_irqs; 429 }; 430 431 #define FIRQ_LIST_IO_ISC_0 0 432 #define FIRQ_LIST_IO_ISC_1 1 433 #define FIRQ_LIST_IO_ISC_2 2 434 #define FIRQ_LIST_IO_ISC_3 3 435 #define FIRQ_LIST_IO_ISC_4 4 436 #define FIRQ_LIST_IO_ISC_5 5 437 #define FIRQ_LIST_IO_ISC_6 6 438 #define FIRQ_LIST_IO_ISC_7 7 439 #define FIRQ_LIST_PFAULT 8 440 #define FIRQ_LIST_VIRTIO 9 441 #define FIRQ_LIST_COUNT 10 442 #define FIRQ_CNTR_IO 0 443 #define FIRQ_CNTR_SERVICE 1 444 #define FIRQ_CNTR_VIRTIO 2 445 #define FIRQ_CNTR_PFAULT 3 446 #define FIRQ_MAX_COUNT 4 447 448 struct kvm_s390_float_interrupt { 449 unsigned long pending_irqs; 450 spinlock_t lock; 451 struct list_head lists[FIRQ_LIST_COUNT]; 452 int counters[FIRQ_MAX_COUNT]; 453 struct kvm_s390_mchk_info mchk; 454 struct kvm_s390_ext_info srv_signal; 455 int next_rr_cpu; 456 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; 457 }; 458 459 struct kvm_hw_wp_info_arch { 460 unsigned long addr; 461 unsigned long phys_addr; 462 int len; 463 char *old_data; 464 }; 465 466 struct kvm_hw_bp_info_arch { 467 unsigned long addr; 468 int len; 469 }; 470 471 /* 472 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 473 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 474 * arch/s390/include/uapi/asm/kvm.h 475 */ 476 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 477 478 #define guestdbg_enabled(vcpu) \ 479 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 480 #define guestdbg_sstep_enabled(vcpu) \ 481 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 482 #define guestdbg_hw_bp_enabled(vcpu) \ 483 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 484 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 485 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 486 487 struct kvm_guestdbg_info_arch { 488 unsigned long cr0; 489 unsigned long cr9; 490 unsigned long cr10; 491 unsigned long cr11; 492 struct kvm_hw_bp_info_arch *hw_bp_info; 493 struct kvm_hw_wp_info_arch *hw_wp_info; 494 int nr_hw_bp; 495 int nr_hw_wp; 496 unsigned long last_bp; 497 }; 498 499 struct kvm_vcpu_arch { 500 struct kvm_s390_sie_block *sie_block; 501 s390_fp_regs host_fpregs; 502 unsigned int host_acrs[NUM_ACRS]; 503 s390_fp_regs guest_fpregs; 504 struct kvm_s390_vregs *host_vregs; 505 struct kvm_s390_local_interrupt local_int; 506 struct hrtimer ckc_timer; 507 struct kvm_s390_pgm_info pgm; 508 union { 509 struct cpuid cpu_id; 510 u64 stidp_data; 511 }; 512 struct gmap *gmap; 513 struct kvm_guestdbg_info_arch guestdbg; 514 unsigned long pfault_token; 515 unsigned long pfault_select; 516 unsigned long pfault_compare; 517 }; 518 519 struct kvm_vm_stat { 520 u32 remote_tlb_flush; 521 }; 522 523 struct kvm_arch_memory_slot { 524 }; 525 526 struct s390_map_info { 527 struct list_head list; 528 __u64 guest_addr; 529 __u64 addr; 530 struct page *page; 531 }; 532 533 struct s390_io_adapter { 534 unsigned int id; 535 int isc; 536 bool maskable; 537 bool masked; 538 bool swap; 539 struct rw_semaphore maps_lock; 540 struct list_head maps; 541 atomic_t nr_maps; 542 }; 543 544 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 545 #define MAX_S390_ADAPTER_MAPS 256 546 547 /* maximum size of facilities and facility mask is 2k bytes */ 548 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 549 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 550 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 551 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 552 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 553 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 554 555 struct kvm_s390_fac { 556 /* facility list requested by guest */ 557 __u64 list[S390_ARCH_FAC_LIST_SIZE_U64]; 558 /* facility mask supported by kvm & hosting machine */ 559 __u64 mask[S390_ARCH_FAC_LIST_SIZE_U64]; 560 }; 561 562 struct kvm_s390_cpu_model { 563 struct kvm_s390_fac *fac; 564 struct cpuid cpu_id; 565 unsigned short ibc; 566 }; 567 568 struct kvm_s390_crypto { 569 struct kvm_s390_crypto_cb *crycb; 570 __u32 crycbd; 571 __u8 aes_kw; 572 __u8 dea_kw; 573 }; 574 575 struct kvm_s390_crypto_cb { 576 __u8 reserved00[72]; /* 0x0000 */ 577 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 578 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 579 __u8 reserved80[128]; /* 0x0080 */ 580 }; 581 582 struct kvm_arch{ 583 struct sca_block *sca; 584 debug_info_t *dbf; 585 struct kvm_s390_float_interrupt float_int; 586 struct kvm_device *flic; 587 struct gmap *gmap; 588 int css_support; 589 int use_irqchip; 590 int use_cmma; 591 int user_cpu_state_ctrl; 592 int user_sigp; 593 int user_stsi; 594 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 595 wait_queue_head_t ipte_wq; 596 int ipte_lock_count; 597 struct mutex ipte_mutex; 598 spinlock_t start_stop_lock; 599 struct kvm_s390_cpu_model model; 600 struct kvm_s390_crypto crypto; 601 u64 epoch; 602 }; 603 604 #define KVM_HVA_ERR_BAD (-1UL) 605 #define KVM_HVA_ERR_RO_BAD (-2UL) 606 607 static inline bool kvm_is_error_hva(unsigned long addr) 608 { 609 return IS_ERR_VALUE(addr); 610 } 611 612 #define ASYNC_PF_PER_VCPU 64 613 struct kvm_arch_async_pf { 614 unsigned long pfault_token; 615 }; 616 617 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 618 619 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 620 struct kvm_async_pf *work); 621 622 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 623 struct kvm_async_pf *work); 624 625 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 626 struct kvm_async_pf *work); 627 628 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 629 extern char sie_exit; 630 631 static inline void kvm_arch_hardware_disable(void) {} 632 static inline void kvm_arch_check_processor_compat(void *rtn) {} 633 static inline void kvm_arch_exit(void) {} 634 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 635 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 636 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 637 static inline void kvm_arch_free_memslot(struct kvm *kvm, 638 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 639 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {} 640 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 641 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 642 struct kvm_memory_slot *slot) {} 643 644 #endif 645