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_G 0x00000008 84 #define CPUSTAT_GED 0x00000004 85 #define CPUSTAT_J 0x00000002 86 #define CPUSTAT_P 0x00000001 87 88 struct kvm_s390_sie_block { 89 atomic_t cpuflags; /* 0x0000 */ 90 __u32 : 1; /* 0x0004 */ 91 __u32 prefix : 18; 92 __u32 : 1; 93 __u32 ibc : 12; 94 __u8 reserved08[4]; /* 0x0008 */ 95 #define PROG_IN_SIE (1<<0) 96 __u32 prog0c; /* 0x000c */ 97 __u8 reserved10[16]; /* 0x0010 */ 98 #define PROG_BLOCK_SIE 0x00000001 99 atomic_t prog20; /* 0x0020 */ 100 __u8 reserved24[4]; /* 0x0024 */ 101 __u64 cputm; /* 0x0028 */ 102 __u64 ckc; /* 0x0030 */ 103 __u64 epoch; /* 0x0038 */ 104 __u8 reserved40[4]; /* 0x0040 */ 105 #define LCTL_CR0 0x8000 106 #define LCTL_CR6 0x0200 107 #define LCTL_CR9 0x0040 108 #define LCTL_CR10 0x0020 109 #define LCTL_CR11 0x0010 110 #define LCTL_CR14 0x0002 111 __u16 lctl; /* 0x0044 */ 112 __s16 icpua; /* 0x0046 */ 113 #define ICTL_PINT 0x20000000 114 #define ICTL_LPSW 0x00400000 115 #define ICTL_STCTL 0x00040000 116 #define ICTL_ISKE 0x00004000 117 #define ICTL_SSKE 0x00002000 118 #define ICTL_RRBE 0x00001000 119 #define ICTL_TPROT 0x00000200 120 __u32 ictl; /* 0x0048 */ 121 __u32 eca; /* 0x004c */ 122 #define ICPT_INST 0x04 123 #define ICPT_PROGI 0x08 124 #define ICPT_INSTPROGI 0x0C 125 #define ICPT_OPEREXC 0x2C 126 #define ICPT_PARTEXEC 0x38 127 #define ICPT_IOINST 0x40 128 __u8 icptcode; /* 0x0050 */ 129 __u8 icptstatus; /* 0x0051 */ 130 __u16 ihcpu; /* 0x0052 */ 131 __u8 reserved54[2]; /* 0x0054 */ 132 __u16 ipa; /* 0x0056 */ 133 __u32 ipb; /* 0x0058 */ 134 __u32 scaoh; /* 0x005c */ 135 __u8 reserved60; /* 0x0060 */ 136 __u8 ecb; /* 0x0061 */ 137 __u8 ecb2; /* 0x0062 */ 138 #define ECB3_AES 0x04 139 #define ECB3_DEA 0x08 140 __u8 ecb3; /* 0x0063 */ 141 __u32 scaol; /* 0x0064 */ 142 __u8 reserved68[4]; /* 0x0068 */ 143 __u32 todpr; /* 0x006c */ 144 __u8 reserved70[32]; /* 0x0070 */ 145 psw_t gpsw; /* 0x0090 */ 146 __u64 gg14; /* 0x00a0 */ 147 __u64 gg15; /* 0x00a8 */ 148 __u8 reservedb0[20]; /* 0x00b0 */ 149 __u16 extcpuaddr; /* 0x00c4 */ 150 __u16 eic; /* 0x00c6 */ 151 __u32 reservedc8; /* 0x00c8 */ 152 __u16 pgmilc; /* 0x00cc */ 153 __u16 iprcc; /* 0x00ce */ 154 __u32 dxc; /* 0x00d0 */ 155 __u16 mcn; /* 0x00d4 */ 156 __u8 perc; /* 0x00d6 */ 157 __u8 peratmid; /* 0x00d7 */ 158 __u64 peraddr; /* 0x00d8 */ 159 __u8 eai; /* 0x00e0 */ 160 __u8 peraid; /* 0x00e1 */ 161 __u8 oai; /* 0x00e2 */ 162 __u8 armid; /* 0x00e3 */ 163 __u8 reservede4[4]; /* 0x00e4 */ 164 __u64 tecmc; /* 0x00e8 */ 165 __u8 reservedf0[12]; /* 0x00f0 */ 166 #define CRYCB_FORMAT1 0x00000001 167 #define CRYCB_FORMAT2 0x00000003 168 __u32 crycbd; /* 0x00fc */ 169 __u64 gcr[16]; /* 0x0100 */ 170 __u64 gbea; /* 0x0180 */ 171 __u8 reserved188[24]; /* 0x0188 */ 172 __u32 fac; /* 0x01a0 */ 173 __u8 reserved1a4[20]; /* 0x01a4 */ 174 __u64 cbrlo; /* 0x01b8 */ 175 __u8 reserved1c0[30]; /* 0x01c0 */ 176 __u64 pp; /* 0x01de */ 177 __u8 reserved1e6[2]; /* 0x01e6 */ 178 __u64 itdba; /* 0x01e8 */ 179 __u8 reserved1f0[16]; /* 0x01f0 */ 180 } __attribute__((packed)); 181 182 struct kvm_s390_itdb { 183 __u8 data[256]; 184 } __packed; 185 186 struct sie_page { 187 struct kvm_s390_sie_block sie_block; 188 __u8 reserved200[1024]; /* 0x0200 */ 189 struct kvm_s390_itdb itdb; /* 0x0600 */ 190 __u8 reserved700[2304]; /* 0x0700 */ 191 } __packed; 192 193 struct kvm_vcpu_stat { 194 u32 exit_userspace; 195 u32 exit_null; 196 u32 exit_external_request; 197 u32 exit_external_interrupt; 198 u32 exit_stop_request; 199 u32 exit_validity; 200 u32 exit_instruction; 201 u32 halt_successful_poll; 202 u32 halt_wakeup; 203 u32 instruction_lctl; 204 u32 instruction_lctlg; 205 u32 instruction_stctl; 206 u32 instruction_stctg; 207 u32 exit_program_interruption; 208 u32 exit_instr_and_program; 209 u32 deliver_external_call; 210 u32 deliver_emergency_signal; 211 u32 deliver_service_signal; 212 u32 deliver_virtio_interrupt; 213 u32 deliver_stop_signal; 214 u32 deliver_prefix_signal; 215 u32 deliver_restart_signal; 216 u32 deliver_program_int; 217 u32 deliver_io_int; 218 u32 exit_wait_state; 219 u32 instruction_pfmf; 220 u32 instruction_stidp; 221 u32 instruction_spx; 222 u32 instruction_stpx; 223 u32 instruction_stap; 224 u32 instruction_storage_key; 225 u32 instruction_ipte_interlock; 226 u32 instruction_stsch; 227 u32 instruction_chsc; 228 u32 instruction_stsi; 229 u32 instruction_stfl; 230 u32 instruction_tprot; 231 u32 instruction_essa; 232 u32 instruction_sigp_sense; 233 u32 instruction_sigp_sense_running; 234 u32 instruction_sigp_external_call; 235 u32 instruction_sigp_emergency; 236 u32 instruction_sigp_cond_emergency; 237 u32 instruction_sigp_start; 238 u32 instruction_sigp_stop; 239 u32 instruction_sigp_stop_store_status; 240 u32 instruction_sigp_store_status; 241 u32 instruction_sigp_arch; 242 u32 instruction_sigp_prefix; 243 u32 instruction_sigp_restart; 244 u32 instruction_sigp_init_cpu_reset; 245 u32 instruction_sigp_cpu_reset; 246 u32 instruction_sigp_unknown; 247 u32 diagnose_10; 248 u32 diagnose_44; 249 u32 diagnose_9c; 250 }; 251 252 #define PGM_OPERATION 0x01 253 #define PGM_PRIVILEGED_OP 0x02 254 #define PGM_EXECUTE 0x03 255 #define PGM_PROTECTION 0x04 256 #define PGM_ADDRESSING 0x05 257 #define PGM_SPECIFICATION 0x06 258 #define PGM_DATA 0x07 259 #define PGM_FIXED_POINT_OVERFLOW 0x08 260 #define PGM_FIXED_POINT_DIVIDE 0x09 261 #define PGM_DECIMAL_OVERFLOW 0x0a 262 #define PGM_DECIMAL_DIVIDE 0x0b 263 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 264 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 265 #define PGM_HFP_SIGNIFICANCE 0x0e 266 #define PGM_HFP_DIVIDE 0x0f 267 #define PGM_SEGMENT_TRANSLATION 0x10 268 #define PGM_PAGE_TRANSLATION 0x11 269 #define PGM_TRANSLATION_SPEC 0x12 270 #define PGM_SPECIAL_OPERATION 0x13 271 #define PGM_OPERAND 0x15 272 #define PGM_TRACE_TABEL 0x16 273 #define PGM_SPACE_SWITCH 0x1c 274 #define PGM_HFP_SQUARE_ROOT 0x1d 275 #define PGM_PC_TRANSLATION_SPEC 0x1f 276 #define PGM_AFX_TRANSLATION 0x20 277 #define PGM_ASX_TRANSLATION 0x21 278 #define PGM_LX_TRANSLATION 0x22 279 #define PGM_EX_TRANSLATION 0x23 280 #define PGM_PRIMARY_AUTHORITY 0x24 281 #define PGM_SECONDARY_AUTHORITY 0x25 282 #define PGM_LFX_TRANSLATION 0x26 283 #define PGM_LSX_TRANSLATION 0x27 284 #define PGM_ALET_SPECIFICATION 0x28 285 #define PGM_ALEN_TRANSLATION 0x29 286 #define PGM_ALE_SEQUENCE 0x2a 287 #define PGM_ASTE_VALIDITY 0x2b 288 #define PGM_ASTE_SEQUENCE 0x2c 289 #define PGM_EXTENDED_AUTHORITY 0x2d 290 #define PGM_LSTE_SEQUENCE 0x2e 291 #define PGM_ASTE_INSTANCE 0x2f 292 #define PGM_STACK_FULL 0x30 293 #define PGM_STACK_EMPTY 0x31 294 #define PGM_STACK_SPECIFICATION 0x32 295 #define PGM_STACK_TYPE 0x33 296 #define PGM_STACK_OPERATION 0x34 297 #define PGM_ASCE_TYPE 0x38 298 #define PGM_REGION_FIRST_TRANS 0x39 299 #define PGM_REGION_SECOND_TRANS 0x3a 300 #define PGM_REGION_THIRD_TRANS 0x3b 301 #define PGM_MONITOR 0x40 302 #define PGM_PER 0x80 303 #define PGM_CRYPTO_OPERATION 0x119 304 305 /* irq types in order of priority */ 306 enum irq_types { 307 IRQ_PEND_MCHK_EX = 0, 308 IRQ_PEND_SVC, 309 IRQ_PEND_PROG, 310 IRQ_PEND_MCHK_REP, 311 IRQ_PEND_EXT_IRQ_KEY, 312 IRQ_PEND_EXT_MALFUNC, 313 IRQ_PEND_EXT_EMERGENCY, 314 IRQ_PEND_EXT_EXTERNAL, 315 IRQ_PEND_EXT_CLOCK_COMP, 316 IRQ_PEND_EXT_CPU_TIMER, 317 IRQ_PEND_EXT_TIMING, 318 IRQ_PEND_EXT_SERVICE, 319 IRQ_PEND_EXT_HOST, 320 IRQ_PEND_PFAULT_INIT, 321 IRQ_PEND_PFAULT_DONE, 322 IRQ_PEND_VIRTIO, 323 IRQ_PEND_IO_ISC_0, 324 IRQ_PEND_IO_ISC_1, 325 IRQ_PEND_IO_ISC_2, 326 IRQ_PEND_IO_ISC_3, 327 IRQ_PEND_IO_ISC_4, 328 IRQ_PEND_IO_ISC_5, 329 IRQ_PEND_IO_ISC_6, 330 IRQ_PEND_IO_ISC_7, 331 IRQ_PEND_SIGP_STOP, 332 IRQ_PEND_RESTART, 333 IRQ_PEND_SET_PREFIX, 334 IRQ_PEND_COUNT 335 }; 336 337 /* 338 * Repressible (non-floating) machine check interrupts 339 * subclass bits in MCIC 340 */ 341 #define MCHK_EXTD_BIT 58 342 #define MCHK_DEGR_BIT 56 343 #define MCHK_WARN_BIT 55 344 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 345 (1UL << MCHK_EXTD_BIT) | \ 346 (1UL << MCHK_WARN_BIT)) 347 348 /* Exigent machine check interrupts subclass bits in MCIC */ 349 #define MCHK_SD_BIT 63 350 #define MCHK_PD_BIT 62 351 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 352 353 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 354 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 355 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 356 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 357 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 358 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 359 (1UL << IRQ_PEND_EXT_TIMING) | \ 360 (1UL << IRQ_PEND_EXT_HOST) | \ 361 (1UL << IRQ_PEND_EXT_SERVICE) | \ 362 (1UL << IRQ_PEND_VIRTIO) | \ 363 (1UL << IRQ_PEND_PFAULT_INIT) | \ 364 (1UL << IRQ_PEND_PFAULT_DONE)) 365 366 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 367 (1UL << IRQ_PEND_IO_ISC_1) | \ 368 (1UL << IRQ_PEND_IO_ISC_2) | \ 369 (1UL << IRQ_PEND_IO_ISC_3) | \ 370 (1UL << IRQ_PEND_IO_ISC_4) | \ 371 (1UL << IRQ_PEND_IO_ISC_5) | \ 372 (1UL << IRQ_PEND_IO_ISC_6) | \ 373 (1UL << IRQ_PEND_IO_ISC_7)) 374 375 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 376 (1UL << IRQ_PEND_MCHK_EX)) 377 378 struct kvm_s390_interrupt_info { 379 struct list_head list; 380 u64 type; 381 union { 382 struct kvm_s390_io_info io; 383 struct kvm_s390_ext_info ext; 384 struct kvm_s390_pgm_info pgm; 385 struct kvm_s390_emerg_info emerg; 386 struct kvm_s390_extcall_info extcall; 387 struct kvm_s390_prefix_info prefix; 388 struct kvm_s390_stop_info stop; 389 struct kvm_s390_mchk_info mchk; 390 }; 391 }; 392 393 struct kvm_s390_irq_payload { 394 struct kvm_s390_io_info io; 395 struct kvm_s390_ext_info ext; 396 struct kvm_s390_pgm_info pgm; 397 struct kvm_s390_emerg_info emerg; 398 struct kvm_s390_extcall_info extcall; 399 struct kvm_s390_prefix_info prefix; 400 struct kvm_s390_stop_info stop; 401 struct kvm_s390_mchk_info mchk; 402 }; 403 404 struct kvm_s390_local_interrupt { 405 spinlock_t lock; 406 struct kvm_s390_float_interrupt *float_int; 407 wait_queue_head_t *wq; 408 atomic_t *cpuflags; 409 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 410 struct kvm_s390_irq_payload irq; 411 unsigned long pending_irqs; 412 }; 413 414 struct kvm_s390_float_interrupt { 415 spinlock_t lock; 416 struct list_head list; 417 atomic_t active; 418 int next_rr_cpu; 419 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; 420 unsigned int irq_count; 421 }; 422 423 struct kvm_hw_wp_info_arch { 424 unsigned long addr; 425 unsigned long phys_addr; 426 int len; 427 char *old_data; 428 }; 429 430 struct kvm_hw_bp_info_arch { 431 unsigned long addr; 432 int len; 433 }; 434 435 /* 436 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 437 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 438 * arch/s390/include/uapi/asm/kvm.h 439 */ 440 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 441 442 #define guestdbg_enabled(vcpu) \ 443 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 444 #define guestdbg_sstep_enabled(vcpu) \ 445 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 446 #define guestdbg_hw_bp_enabled(vcpu) \ 447 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 448 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 449 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 450 451 struct kvm_guestdbg_info_arch { 452 unsigned long cr0; 453 unsigned long cr9; 454 unsigned long cr10; 455 unsigned long cr11; 456 struct kvm_hw_bp_info_arch *hw_bp_info; 457 struct kvm_hw_wp_info_arch *hw_wp_info; 458 int nr_hw_bp; 459 int nr_hw_wp; 460 unsigned long last_bp; 461 }; 462 463 struct kvm_vcpu_arch { 464 struct kvm_s390_sie_block *sie_block; 465 s390_fp_regs host_fpregs; 466 unsigned int host_acrs[NUM_ACRS]; 467 s390_fp_regs guest_fpregs; 468 struct kvm_s390_local_interrupt local_int; 469 struct hrtimer ckc_timer; 470 struct kvm_s390_pgm_info pgm; 471 union { 472 struct cpuid cpu_id; 473 u64 stidp_data; 474 }; 475 struct gmap *gmap; 476 struct kvm_guestdbg_info_arch guestdbg; 477 unsigned long pfault_token; 478 unsigned long pfault_select; 479 unsigned long pfault_compare; 480 }; 481 482 struct kvm_vm_stat { 483 u32 remote_tlb_flush; 484 }; 485 486 struct kvm_arch_memory_slot { 487 }; 488 489 struct s390_map_info { 490 struct list_head list; 491 __u64 guest_addr; 492 __u64 addr; 493 struct page *page; 494 }; 495 496 struct s390_io_adapter { 497 unsigned int id; 498 int isc; 499 bool maskable; 500 bool masked; 501 bool swap; 502 struct rw_semaphore maps_lock; 503 struct list_head maps; 504 atomic_t nr_maps; 505 }; 506 507 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 508 #define MAX_S390_ADAPTER_MAPS 256 509 510 /* maximum size of facilities and facility mask is 2k bytes */ 511 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 512 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 513 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 514 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 515 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 516 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 517 518 struct kvm_s390_fac { 519 /* facility list requested by guest */ 520 __u64 list[S390_ARCH_FAC_LIST_SIZE_U64]; 521 /* facility mask supported by kvm & hosting machine */ 522 __u64 mask[S390_ARCH_FAC_LIST_SIZE_U64]; 523 }; 524 525 struct kvm_s390_cpu_model { 526 struct kvm_s390_fac *fac; 527 struct cpuid cpu_id; 528 unsigned short ibc; 529 }; 530 531 struct kvm_s390_crypto { 532 struct kvm_s390_crypto_cb *crycb; 533 __u32 crycbd; 534 __u8 aes_kw; 535 __u8 dea_kw; 536 }; 537 538 struct kvm_s390_crypto_cb { 539 __u8 reserved00[72]; /* 0x0000 */ 540 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 541 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 542 __u8 reserved80[128]; /* 0x0080 */ 543 }; 544 545 struct kvm_arch{ 546 struct sca_block *sca; 547 debug_info_t *dbf; 548 struct kvm_s390_float_interrupt float_int; 549 struct kvm_device *flic; 550 struct gmap *gmap; 551 int css_support; 552 int use_irqchip; 553 int use_cmma; 554 int user_cpu_state_ctrl; 555 int user_sigp; 556 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 557 wait_queue_head_t ipte_wq; 558 int ipte_lock_count; 559 struct mutex ipte_mutex; 560 spinlock_t start_stop_lock; 561 struct kvm_s390_cpu_model model; 562 struct kvm_s390_crypto crypto; 563 u64 epoch; 564 }; 565 566 #define KVM_HVA_ERR_BAD (-1UL) 567 #define KVM_HVA_ERR_RO_BAD (-2UL) 568 569 static inline bool kvm_is_error_hva(unsigned long addr) 570 { 571 return IS_ERR_VALUE(addr); 572 } 573 574 #define ASYNC_PF_PER_VCPU 64 575 struct kvm_arch_async_pf { 576 unsigned long pfault_token; 577 }; 578 579 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 580 581 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 582 struct kvm_async_pf *work); 583 584 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 585 struct kvm_async_pf *work); 586 587 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 588 struct kvm_async_pf *work); 589 590 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 591 extern char sie_exit; 592 593 static inline void kvm_arch_hardware_disable(void) {} 594 static inline void kvm_arch_check_processor_compat(void *rtn) {} 595 static inline void kvm_arch_exit(void) {} 596 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 597 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 598 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 599 static inline void kvm_arch_free_memslot(struct kvm *kvm, 600 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 601 static inline void kvm_arch_memslots_updated(struct kvm *kvm) {} 602 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 603 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 604 struct kvm_memory_slot *slot) {} 605 606 #endif 607