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/fpu-internal.h> 26 #include <asm/isc.h> 27 28 #define KVM_MAX_VCPUS 64 29 #define KVM_USER_MEM_SLOTS 32 30 31 /* 32 * These seem to be used for allocating ->chip in the routing table, 33 * which we don't use. 4096 is an out-of-thin-air value. If we need 34 * to look at ->chip later on, we'll need to revisit this. 35 */ 36 #define KVM_NR_IRQCHIPS 1 37 #define KVM_IRQCHIP_NUM_PINS 4096 38 #define KVM_HALT_POLL_NS_DEFAULT 0 39 40 #define SIGP_CTRL_C 0x80 41 #define SIGP_CTRL_SCN_MASK 0x3f 42 43 struct sca_entry { 44 __u8 reserved0; 45 __u8 sigp_ctrl; 46 __u16 reserved[3]; 47 __u64 sda; 48 __u64 reserved2[2]; 49 } __attribute__((packed)); 50 51 union ipte_control { 52 unsigned long val; 53 struct { 54 unsigned long k : 1; 55 unsigned long kh : 31; 56 unsigned long kg : 32; 57 }; 58 }; 59 60 struct sca_block { 61 union ipte_control ipte_control; 62 __u64 reserved[5]; 63 __u64 mcn; 64 __u64 reserved2; 65 struct sca_entry cpu[64]; 66 } __attribute__((packed)); 67 68 #define CPUSTAT_STOPPED 0x80000000 69 #define CPUSTAT_WAIT 0x10000000 70 #define CPUSTAT_ECALL_PEND 0x08000000 71 #define CPUSTAT_STOP_INT 0x04000000 72 #define CPUSTAT_IO_INT 0x02000000 73 #define CPUSTAT_EXT_INT 0x01000000 74 #define CPUSTAT_RUNNING 0x00800000 75 #define CPUSTAT_RETAINED 0x00400000 76 #define CPUSTAT_TIMING_SUB 0x00020000 77 #define CPUSTAT_SIE_SUB 0x00010000 78 #define CPUSTAT_RRF 0x00008000 79 #define CPUSTAT_SLSV 0x00004000 80 #define CPUSTAT_SLSR 0x00002000 81 #define CPUSTAT_ZARCH 0x00000800 82 #define CPUSTAT_MCDS 0x00000100 83 #define CPUSTAT_SM 0x00000080 84 #define CPUSTAT_IBS 0x00000040 85 #define CPUSTAT_GED2 0x00000010 86 #define CPUSTAT_G 0x00000008 87 #define CPUSTAT_GED 0x00000004 88 #define CPUSTAT_J 0x00000002 89 #define CPUSTAT_P 0x00000001 90 91 struct kvm_s390_sie_block { 92 atomic_t cpuflags; /* 0x0000 */ 93 __u32 : 1; /* 0x0004 */ 94 __u32 prefix : 18; 95 __u32 : 1; 96 __u32 ibc : 12; 97 __u8 reserved08[4]; /* 0x0008 */ 98 #define PROG_IN_SIE (1<<0) 99 __u32 prog0c; /* 0x000c */ 100 __u8 reserved10[16]; /* 0x0010 */ 101 #define PROG_BLOCK_SIE (1<<0) 102 #define PROG_REQUEST (1<<1) 103 atomic_t prog20; /* 0x0020 */ 104 __u8 reserved24[4]; /* 0x0024 */ 105 __u64 cputm; /* 0x0028 */ 106 __u64 ckc; /* 0x0030 */ 107 __u64 epoch; /* 0x0038 */ 108 __u8 reserved40[4]; /* 0x0040 */ 109 #define LCTL_CR0 0x8000 110 #define LCTL_CR6 0x0200 111 #define LCTL_CR9 0x0040 112 #define LCTL_CR10 0x0020 113 #define LCTL_CR11 0x0010 114 #define LCTL_CR14 0x0002 115 __u16 lctl; /* 0x0044 */ 116 __s16 icpua; /* 0x0046 */ 117 #define ICTL_PINT 0x20000000 118 #define ICTL_LPSW 0x00400000 119 #define ICTL_STCTL 0x00040000 120 #define ICTL_ISKE 0x00004000 121 #define ICTL_SSKE 0x00002000 122 #define ICTL_RRBE 0x00001000 123 #define ICTL_TPROT 0x00000200 124 __u32 ictl; /* 0x0048 */ 125 __u32 eca; /* 0x004c */ 126 #define ICPT_INST 0x04 127 #define ICPT_PROGI 0x08 128 #define ICPT_INSTPROGI 0x0C 129 #define ICPT_OPEREXC 0x2C 130 #define ICPT_PARTEXEC 0x38 131 #define ICPT_IOINST 0x40 132 __u8 icptcode; /* 0x0050 */ 133 __u8 icptstatus; /* 0x0051 */ 134 __u16 ihcpu; /* 0x0052 */ 135 __u8 reserved54[2]; /* 0x0054 */ 136 __u16 ipa; /* 0x0056 */ 137 __u32 ipb; /* 0x0058 */ 138 __u32 scaoh; /* 0x005c */ 139 __u8 reserved60; /* 0x0060 */ 140 __u8 ecb; /* 0x0061 */ 141 __u8 ecb2; /* 0x0062 */ 142 #define ECB3_AES 0x04 143 #define ECB3_DEA 0x08 144 __u8 ecb3; /* 0x0063 */ 145 __u32 scaol; /* 0x0064 */ 146 __u8 reserved68[4]; /* 0x0068 */ 147 __u32 todpr; /* 0x006c */ 148 __u8 reserved70[32]; /* 0x0070 */ 149 psw_t gpsw; /* 0x0090 */ 150 __u64 gg14; /* 0x00a0 */ 151 __u64 gg15; /* 0x00a8 */ 152 __u8 reservedb0[20]; /* 0x00b0 */ 153 __u16 extcpuaddr; /* 0x00c4 */ 154 __u16 eic; /* 0x00c6 */ 155 __u32 reservedc8; /* 0x00c8 */ 156 __u16 pgmilc; /* 0x00cc */ 157 __u16 iprcc; /* 0x00ce */ 158 __u32 dxc; /* 0x00d0 */ 159 __u16 mcn; /* 0x00d4 */ 160 __u8 perc; /* 0x00d6 */ 161 __u8 peratmid; /* 0x00d7 */ 162 __u64 peraddr; /* 0x00d8 */ 163 __u8 eai; /* 0x00e0 */ 164 __u8 peraid; /* 0x00e1 */ 165 __u8 oai; /* 0x00e2 */ 166 __u8 armid; /* 0x00e3 */ 167 __u8 reservede4[4]; /* 0x00e4 */ 168 __u64 tecmc; /* 0x00e8 */ 169 __u8 reservedf0[12]; /* 0x00f0 */ 170 #define CRYCB_FORMAT1 0x00000001 171 #define CRYCB_FORMAT2 0x00000003 172 __u32 crycbd; /* 0x00fc */ 173 __u64 gcr[16]; /* 0x0100 */ 174 __u64 gbea; /* 0x0180 */ 175 __u8 reserved188[24]; /* 0x0188 */ 176 __u32 fac; /* 0x01a0 */ 177 __u8 reserved1a4[20]; /* 0x01a4 */ 178 __u64 cbrlo; /* 0x01b8 */ 179 __u8 reserved1c0[8]; /* 0x01c0 */ 180 __u32 ecd; /* 0x01c8 */ 181 __u8 reserved1cc[18]; /* 0x01cc */ 182 __u64 pp; /* 0x01de */ 183 __u8 reserved1e6[2]; /* 0x01e6 */ 184 __u64 itdba; /* 0x01e8 */ 185 __u8 reserved1f0[16]; /* 0x01f0 */ 186 } __attribute__((packed)); 187 188 struct kvm_s390_itdb { 189 __u8 data[256]; 190 } __packed; 191 192 struct kvm_s390_vregs { 193 __vector128 vrs[32]; 194 __u8 reserved200[512]; /* for future vector expansion */ 195 } __packed; 196 197 struct sie_page { 198 struct kvm_s390_sie_block sie_block; 199 __u8 reserved200[1024]; /* 0x0200 */ 200 struct kvm_s390_itdb itdb; /* 0x0600 */ 201 __u8 reserved700[1280]; /* 0x0700 */ 202 struct kvm_s390_vregs vregs; /* 0x0c00 */ 203 } __packed; 204 205 struct kvm_vcpu_stat { 206 u32 exit_userspace; 207 u32 exit_null; 208 u32 exit_external_request; 209 u32 exit_external_interrupt; 210 u32 exit_stop_request; 211 u32 exit_validity; 212 u32 exit_instruction; 213 u32 halt_successful_poll; 214 u32 halt_attempted_poll; 215 u32 halt_wakeup; 216 u32 instruction_lctl; 217 u32 instruction_lctlg; 218 u32 instruction_stctl; 219 u32 instruction_stctg; 220 u32 exit_program_interruption; 221 u32 exit_instr_and_program; 222 u32 deliver_external_call; 223 u32 deliver_emergency_signal; 224 u32 deliver_service_signal; 225 u32 deliver_virtio_interrupt; 226 u32 deliver_stop_signal; 227 u32 deliver_prefix_signal; 228 u32 deliver_restart_signal; 229 u32 deliver_program_int; 230 u32 deliver_io_int; 231 u32 exit_wait_state; 232 u32 instruction_pfmf; 233 u32 instruction_stidp; 234 u32 instruction_spx; 235 u32 instruction_stpx; 236 u32 instruction_stap; 237 u32 instruction_storage_key; 238 u32 instruction_ipte_interlock; 239 u32 instruction_stsch; 240 u32 instruction_chsc; 241 u32 instruction_stsi; 242 u32 instruction_stfl; 243 u32 instruction_tprot; 244 u32 instruction_essa; 245 u32 instruction_sigp_sense; 246 u32 instruction_sigp_sense_running; 247 u32 instruction_sigp_external_call; 248 u32 instruction_sigp_emergency; 249 u32 instruction_sigp_cond_emergency; 250 u32 instruction_sigp_start; 251 u32 instruction_sigp_stop; 252 u32 instruction_sigp_stop_store_status; 253 u32 instruction_sigp_store_status; 254 u32 instruction_sigp_store_adtl_status; 255 u32 instruction_sigp_arch; 256 u32 instruction_sigp_prefix; 257 u32 instruction_sigp_restart; 258 u32 instruction_sigp_init_cpu_reset; 259 u32 instruction_sigp_cpu_reset; 260 u32 instruction_sigp_unknown; 261 u32 diagnose_10; 262 u32 diagnose_44; 263 u32 diagnose_9c; 264 u32 diagnose_258; 265 u32 diagnose_308; 266 u32 diagnose_500; 267 }; 268 269 #define PGM_OPERATION 0x01 270 #define PGM_PRIVILEGED_OP 0x02 271 #define PGM_EXECUTE 0x03 272 #define PGM_PROTECTION 0x04 273 #define PGM_ADDRESSING 0x05 274 #define PGM_SPECIFICATION 0x06 275 #define PGM_DATA 0x07 276 #define PGM_FIXED_POINT_OVERFLOW 0x08 277 #define PGM_FIXED_POINT_DIVIDE 0x09 278 #define PGM_DECIMAL_OVERFLOW 0x0a 279 #define PGM_DECIMAL_DIVIDE 0x0b 280 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 281 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 282 #define PGM_HFP_SIGNIFICANCE 0x0e 283 #define PGM_HFP_DIVIDE 0x0f 284 #define PGM_SEGMENT_TRANSLATION 0x10 285 #define PGM_PAGE_TRANSLATION 0x11 286 #define PGM_TRANSLATION_SPEC 0x12 287 #define PGM_SPECIAL_OPERATION 0x13 288 #define PGM_OPERAND 0x15 289 #define PGM_TRACE_TABEL 0x16 290 #define PGM_VECTOR_PROCESSING 0x1b 291 #define PGM_SPACE_SWITCH 0x1c 292 #define PGM_HFP_SQUARE_ROOT 0x1d 293 #define PGM_PC_TRANSLATION_SPEC 0x1f 294 #define PGM_AFX_TRANSLATION 0x20 295 #define PGM_ASX_TRANSLATION 0x21 296 #define PGM_LX_TRANSLATION 0x22 297 #define PGM_EX_TRANSLATION 0x23 298 #define PGM_PRIMARY_AUTHORITY 0x24 299 #define PGM_SECONDARY_AUTHORITY 0x25 300 #define PGM_LFX_TRANSLATION 0x26 301 #define PGM_LSX_TRANSLATION 0x27 302 #define PGM_ALET_SPECIFICATION 0x28 303 #define PGM_ALEN_TRANSLATION 0x29 304 #define PGM_ALE_SEQUENCE 0x2a 305 #define PGM_ASTE_VALIDITY 0x2b 306 #define PGM_ASTE_SEQUENCE 0x2c 307 #define PGM_EXTENDED_AUTHORITY 0x2d 308 #define PGM_LSTE_SEQUENCE 0x2e 309 #define PGM_ASTE_INSTANCE 0x2f 310 #define PGM_STACK_FULL 0x30 311 #define PGM_STACK_EMPTY 0x31 312 #define PGM_STACK_SPECIFICATION 0x32 313 #define PGM_STACK_TYPE 0x33 314 #define PGM_STACK_OPERATION 0x34 315 #define PGM_ASCE_TYPE 0x38 316 #define PGM_REGION_FIRST_TRANS 0x39 317 #define PGM_REGION_SECOND_TRANS 0x3a 318 #define PGM_REGION_THIRD_TRANS 0x3b 319 #define PGM_MONITOR 0x40 320 #define PGM_PER 0x80 321 #define PGM_CRYPTO_OPERATION 0x119 322 323 /* irq types in order of priority */ 324 enum irq_types { 325 IRQ_PEND_MCHK_EX = 0, 326 IRQ_PEND_SVC, 327 IRQ_PEND_PROG, 328 IRQ_PEND_MCHK_REP, 329 IRQ_PEND_EXT_IRQ_KEY, 330 IRQ_PEND_EXT_MALFUNC, 331 IRQ_PEND_EXT_EMERGENCY, 332 IRQ_PEND_EXT_EXTERNAL, 333 IRQ_PEND_EXT_CLOCK_COMP, 334 IRQ_PEND_EXT_CPU_TIMER, 335 IRQ_PEND_EXT_TIMING, 336 IRQ_PEND_EXT_SERVICE, 337 IRQ_PEND_EXT_HOST, 338 IRQ_PEND_PFAULT_INIT, 339 IRQ_PEND_PFAULT_DONE, 340 IRQ_PEND_VIRTIO, 341 IRQ_PEND_IO_ISC_0, 342 IRQ_PEND_IO_ISC_1, 343 IRQ_PEND_IO_ISC_2, 344 IRQ_PEND_IO_ISC_3, 345 IRQ_PEND_IO_ISC_4, 346 IRQ_PEND_IO_ISC_5, 347 IRQ_PEND_IO_ISC_6, 348 IRQ_PEND_IO_ISC_7, 349 IRQ_PEND_SIGP_STOP, 350 IRQ_PEND_RESTART, 351 IRQ_PEND_SET_PREFIX, 352 IRQ_PEND_COUNT 353 }; 354 355 /* We have 2M for virtio device descriptor pages. Smallest amount of 356 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 357 */ 358 #define KVM_S390_MAX_VIRTIO_IRQS 87381 359 360 /* 361 * Repressible (non-floating) machine check interrupts 362 * subclass bits in MCIC 363 */ 364 #define MCHK_EXTD_BIT 58 365 #define MCHK_DEGR_BIT 56 366 #define MCHK_WARN_BIT 55 367 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 368 (1UL << MCHK_EXTD_BIT) | \ 369 (1UL << MCHK_WARN_BIT)) 370 371 /* Exigent machine check interrupts subclass bits in MCIC */ 372 #define MCHK_SD_BIT 63 373 #define MCHK_PD_BIT 62 374 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 375 376 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 377 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 378 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 379 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 380 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 381 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 382 (1UL << IRQ_PEND_EXT_TIMING) | \ 383 (1UL << IRQ_PEND_EXT_HOST) | \ 384 (1UL << IRQ_PEND_EXT_SERVICE) | \ 385 (1UL << IRQ_PEND_VIRTIO) | \ 386 (1UL << IRQ_PEND_PFAULT_INIT) | \ 387 (1UL << IRQ_PEND_PFAULT_DONE)) 388 389 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 390 (1UL << IRQ_PEND_IO_ISC_1) | \ 391 (1UL << IRQ_PEND_IO_ISC_2) | \ 392 (1UL << IRQ_PEND_IO_ISC_3) | \ 393 (1UL << IRQ_PEND_IO_ISC_4) | \ 394 (1UL << IRQ_PEND_IO_ISC_5) | \ 395 (1UL << IRQ_PEND_IO_ISC_6) | \ 396 (1UL << IRQ_PEND_IO_ISC_7)) 397 398 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 399 (1UL << IRQ_PEND_MCHK_EX)) 400 401 struct kvm_s390_interrupt_info { 402 struct list_head list; 403 u64 type; 404 union { 405 struct kvm_s390_io_info io; 406 struct kvm_s390_ext_info ext; 407 struct kvm_s390_pgm_info pgm; 408 struct kvm_s390_emerg_info emerg; 409 struct kvm_s390_extcall_info extcall; 410 struct kvm_s390_prefix_info prefix; 411 struct kvm_s390_stop_info stop; 412 struct kvm_s390_mchk_info mchk; 413 }; 414 }; 415 416 struct kvm_s390_irq_payload { 417 struct kvm_s390_io_info io; 418 struct kvm_s390_ext_info ext; 419 struct kvm_s390_pgm_info pgm; 420 struct kvm_s390_emerg_info emerg; 421 struct kvm_s390_extcall_info extcall; 422 struct kvm_s390_prefix_info prefix; 423 struct kvm_s390_stop_info stop; 424 struct kvm_s390_mchk_info mchk; 425 }; 426 427 struct kvm_s390_local_interrupt { 428 spinlock_t lock; 429 struct kvm_s390_float_interrupt *float_int; 430 wait_queue_head_t *wq; 431 atomic_t *cpuflags; 432 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 433 struct kvm_s390_irq_payload irq; 434 unsigned long pending_irqs; 435 }; 436 437 #define FIRQ_LIST_IO_ISC_0 0 438 #define FIRQ_LIST_IO_ISC_1 1 439 #define FIRQ_LIST_IO_ISC_2 2 440 #define FIRQ_LIST_IO_ISC_3 3 441 #define FIRQ_LIST_IO_ISC_4 4 442 #define FIRQ_LIST_IO_ISC_5 5 443 #define FIRQ_LIST_IO_ISC_6 6 444 #define FIRQ_LIST_IO_ISC_7 7 445 #define FIRQ_LIST_PFAULT 8 446 #define FIRQ_LIST_VIRTIO 9 447 #define FIRQ_LIST_COUNT 10 448 #define FIRQ_CNTR_IO 0 449 #define FIRQ_CNTR_SERVICE 1 450 #define FIRQ_CNTR_VIRTIO 2 451 #define FIRQ_CNTR_PFAULT 3 452 #define FIRQ_MAX_COUNT 4 453 454 struct kvm_s390_float_interrupt { 455 unsigned long pending_irqs; 456 spinlock_t lock; 457 struct list_head lists[FIRQ_LIST_COUNT]; 458 int counters[FIRQ_MAX_COUNT]; 459 struct kvm_s390_mchk_info mchk; 460 struct kvm_s390_ext_info srv_signal; 461 int next_rr_cpu; 462 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; 463 }; 464 465 struct kvm_hw_wp_info_arch { 466 unsigned long addr; 467 unsigned long phys_addr; 468 int len; 469 char *old_data; 470 }; 471 472 struct kvm_hw_bp_info_arch { 473 unsigned long addr; 474 int len; 475 }; 476 477 /* 478 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 479 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 480 * arch/s390/include/uapi/asm/kvm.h 481 */ 482 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 483 484 #define guestdbg_enabled(vcpu) \ 485 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 486 #define guestdbg_sstep_enabled(vcpu) \ 487 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 488 #define guestdbg_hw_bp_enabled(vcpu) \ 489 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 490 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 491 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 492 493 struct kvm_guestdbg_info_arch { 494 unsigned long cr0; 495 unsigned long cr9; 496 unsigned long cr10; 497 unsigned long cr11; 498 struct kvm_hw_bp_info_arch *hw_bp_info; 499 struct kvm_hw_wp_info_arch *hw_wp_info; 500 int nr_hw_bp; 501 int nr_hw_wp; 502 unsigned long last_bp; 503 }; 504 505 struct kvm_vcpu_arch { 506 struct kvm_s390_sie_block *sie_block; 507 unsigned int host_acrs[NUM_ACRS]; 508 struct fpu host_fpregs; 509 struct fpu guest_fpregs; 510 struct kvm_s390_local_interrupt local_int; 511 struct hrtimer ckc_timer; 512 struct kvm_s390_pgm_info pgm; 513 union { 514 struct cpuid cpu_id; 515 u64 stidp_data; 516 }; 517 struct gmap *gmap; 518 struct kvm_guestdbg_info_arch guestdbg; 519 unsigned long pfault_token; 520 unsigned long pfault_select; 521 unsigned long pfault_compare; 522 }; 523 524 struct kvm_vm_stat { 525 u32 remote_tlb_flush; 526 }; 527 528 struct kvm_arch_memory_slot { 529 }; 530 531 struct s390_map_info { 532 struct list_head list; 533 __u64 guest_addr; 534 __u64 addr; 535 struct page *page; 536 }; 537 538 struct s390_io_adapter { 539 unsigned int id; 540 int isc; 541 bool maskable; 542 bool masked; 543 bool swap; 544 struct rw_semaphore maps_lock; 545 struct list_head maps; 546 atomic_t nr_maps; 547 }; 548 549 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 550 #define MAX_S390_ADAPTER_MAPS 256 551 552 /* maximum size of facilities and facility mask is 2k bytes */ 553 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 554 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 555 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 556 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 557 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 558 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 559 560 struct kvm_s390_fac { 561 /* facility list requested by guest */ 562 __u64 list[S390_ARCH_FAC_LIST_SIZE_U64]; 563 /* facility mask supported by kvm & hosting machine */ 564 __u64 mask[S390_ARCH_FAC_LIST_SIZE_U64]; 565 }; 566 567 struct kvm_s390_cpu_model { 568 struct kvm_s390_fac *fac; 569 struct cpuid cpu_id; 570 unsigned short ibc; 571 }; 572 573 struct kvm_s390_crypto { 574 struct kvm_s390_crypto_cb *crycb; 575 __u32 crycbd; 576 __u8 aes_kw; 577 __u8 dea_kw; 578 }; 579 580 struct kvm_s390_crypto_cb { 581 __u8 reserved00[72]; /* 0x0000 */ 582 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 583 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 584 __u8 reserved80[128]; /* 0x0080 */ 585 }; 586 587 struct kvm_arch{ 588 struct sca_block *sca; 589 debug_info_t *dbf; 590 struct kvm_s390_float_interrupt float_int; 591 struct kvm_device *flic; 592 struct gmap *gmap; 593 int css_support; 594 int use_irqchip; 595 int use_cmma; 596 int user_cpu_state_ctrl; 597 int user_sigp; 598 int user_stsi; 599 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 600 wait_queue_head_t ipte_wq; 601 int ipte_lock_count; 602 struct mutex ipte_mutex; 603 spinlock_t start_stop_lock; 604 struct kvm_s390_cpu_model model; 605 struct kvm_s390_crypto crypto; 606 u64 epoch; 607 }; 608 609 #define KVM_HVA_ERR_BAD (-1UL) 610 #define KVM_HVA_ERR_RO_BAD (-2UL) 611 612 static inline bool kvm_is_error_hva(unsigned long addr) 613 { 614 return IS_ERR_VALUE(addr); 615 } 616 617 #define ASYNC_PF_PER_VCPU 64 618 struct kvm_arch_async_pf { 619 unsigned long pfault_token; 620 }; 621 622 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 623 624 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 625 struct kvm_async_pf *work); 626 627 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 628 struct kvm_async_pf *work); 629 630 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 631 struct kvm_async_pf *work); 632 633 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 634 extern char sie_exit; 635 636 static inline void kvm_arch_hardware_disable(void) {} 637 static inline void kvm_arch_check_processor_compat(void *rtn) {} 638 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 639 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 640 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 641 static inline void kvm_arch_free_memslot(struct kvm *kvm, 642 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 643 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {} 644 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 645 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 646 struct kvm_memory_slot *slot) {} 647 648 #endif 649