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/api.h> 26 #include <asm/isc.h> 27 28 #define KVM_S390_BSCA_CPU_SLOTS 64 29 #define KVM_S390_ESCA_CPU_SLOTS 248 30 #define KVM_MAX_VCPUS KVM_S390_ESCA_CPU_SLOTS 31 #define KVM_USER_MEM_SLOTS 32 32 33 /* 34 * These seem to be used for allocating ->chip in the routing table, 35 * which we don't use. 4096 is an out-of-thin-air value. If we need 36 * to look at ->chip later on, we'll need to revisit this. 37 */ 38 #define KVM_NR_IRQCHIPS 1 39 #define KVM_IRQCHIP_NUM_PINS 4096 40 #define KVM_HALT_POLL_NS_DEFAULT 0 41 42 /* s390-specific vcpu->requests bit members */ 43 #define KVM_REQ_ENABLE_IBS 8 44 #define KVM_REQ_DISABLE_IBS 9 45 46 #define SIGP_CTRL_C 0x80 47 #define SIGP_CTRL_SCN_MASK 0x3f 48 49 union bsca_sigp_ctrl { 50 __u8 value; 51 struct { 52 __u8 c : 1; 53 __u8 r : 1; 54 __u8 scn : 6; 55 }; 56 } __packed; 57 58 union esca_sigp_ctrl { 59 __u16 value; 60 struct { 61 __u8 c : 1; 62 __u8 reserved: 7; 63 __u8 scn; 64 }; 65 } __packed; 66 67 struct esca_entry { 68 union esca_sigp_ctrl sigp_ctrl; 69 __u16 reserved1[3]; 70 __u64 sda; 71 __u64 reserved2[6]; 72 } __packed; 73 74 struct bsca_entry { 75 __u8 reserved0; 76 union bsca_sigp_ctrl sigp_ctrl; 77 __u16 reserved[3]; 78 __u64 sda; 79 __u64 reserved2[2]; 80 } __attribute__((packed)); 81 82 union ipte_control { 83 unsigned long val; 84 struct { 85 unsigned long k : 1; 86 unsigned long kh : 31; 87 unsigned long kg : 32; 88 }; 89 }; 90 91 struct bsca_block { 92 union ipte_control ipte_control; 93 __u64 reserved[5]; 94 __u64 mcn; 95 __u64 reserved2; 96 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS]; 97 } __attribute__((packed)); 98 99 struct esca_block { 100 union ipte_control ipte_control; 101 __u64 reserved1[7]; 102 __u64 mcn[4]; 103 __u64 reserved2[20]; 104 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS]; 105 } __packed; 106 107 #define CPUSTAT_STOPPED 0x80000000 108 #define CPUSTAT_WAIT 0x10000000 109 #define CPUSTAT_ECALL_PEND 0x08000000 110 #define CPUSTAT_STOP_INT 0x04000000 111 #define CPUSTAT_IO_INT 0x02000000 112 #define CPUSTAT_EXT_INT 0x01000000 113 #define CPUSTAT_RUNNING 0x00800000 114 #define CPUSTAT_RETAINED 0x00400000 115 #define CPUSTAT_TIMING_SUB 0x00020000 116 #define CPUSTAT_SIE_SUB 0x00010000 117 #define CPUSTAT_RRF 0x00008000 118 #define CPUSTAT_SLSV 0x00004000 119 #define CPUSTAT_SLSR 0x00002000 120 #define CPUSTAT_ZARCH 0x00000800 121 #define CPUSTAT_MCDS 0x00000100 122 #define CPUSTAT_SM 0x00000080 123 #define CPUSTAT_IBS 0x00000040 124 #define CPUSTAT_GED2 0x00000010 125 #define CPUSTAT_G 0x00000008 126 #define CPUSTAT_GED 0x00000004 127 #define CPUSTAT_J 0x00000002 128 #define CPUSTAT_P 0x00000001 129 130 struct kvm_s390_sie_block { 131 atomic_t cpuflags; /* 0x0000 */ 132 __u32 : 1; /* 0x0004 */ 133 __u32 prefix : 18; 134 __u32 : 1; 135 __u32 ibc : 12; 136 __u8 reserved08[4]; /* 0x0008 */ 137 #define PROG_IN_SIE (1<<0) 138 __u32 prog0c; /* 0x000c */ 139 __u8 reserved10[16]; /* 0x0010 */ 140 #define PROG_BLOCK_SIE (1<<0) 141 #define PROG_REQUEST (1<<1) 142 atomic_t prog20; /* 0x0020 */ 143 __u8 reserved24[4]; /* 0x0024 */ 144 __u64 cputm; /* 0x0028 */ 145 __u64 ckc; /* 0x0030 */ 146 __u64 epoch; /* 0x0038 */ 147 __u8 reserved40[4]; /* 0x0040 */ 148 #define LCTL_CR0 0x8000 149 #define LCTL_CR6 0x0200 150 #define LCTL_CR9 0x0040 151 #define LCTL_CR10 0x0020 152 #define LCTL_CR11 0x0010 153 #define LCTL_CR14 0x0002 154 __u16 lctl; /* 0x0044 */ 155 __s16 icpua; /* 0x0046 */ 156 #define ICTL_PINT 0x20000000 157 #define ICTL_LPSW 0x00400000 158 #define ICTL_STCTL 0x00040000 159 #define ICTL_ISKE 0x00004000 160 #define ICTL_SSKE 0x00002000 161 #define ICTL_RRBE 0x00001000 162 #define ICTL_TPROT 0x00000200 163 __u32 ictl; /* 0x0048 */ 164 __u32 eca; /* 0x004c */ 165 #define ICPT_INST 0x04 166 #define ICPT_PROGI 0x08 167 #define ICPT_INSTPROGI 0x0C 168 #define ICPT_OPEREXC 0x2C 169 #define ICPT_PARTEXEC 0x38 170 #define ICPT_IOINST 0x40 171 __u8 icptcode; /* 0x0050 */ 172 __u8 icptstatus; /* 0x0051 */ 173 __u16 ihcpu; /* 0x0052 */ 174 __u8 reserved54[2]; /* 0x0054 */ 175 __u16 ipa; /* 0x0056 */ 176 __u32 ipb; /* 0x0058 */ 177 __u32 scaoh; /* 0x005c */ 178 __u8 reserved60; /* 0x0060 */ 179 __u8 ecb; /* 0x0061 */ 180 __u8 ecb2; /* 0x0062 */ 181 #define ECB3_AES 0x04 182 #define ECB3_DEA 0x08 183 __u8 ecb3; /* 0x0063 */ 184 __u32 scaol; /* 0x0064 */ 185 __u8 reserved68[4]; /* 0x0068 */ 186 __u32 todpr; /* 0x006c */ 187 __u8 reserved70[32]; /* 0x0070 */ 188 psw_t gpsw; /* 0x0090 */ 189 __u64 gg14; /* 0x00a0 */ 190 __u64 gg15; /* 0x00a8 */ 191 __u8 reservedb0[20]; /* 0x00b0 */ 192 __u16 extcpuaddr; /* 0x00c4 */ 193 __u16 eic; /* 0x00c6 */ 194 __u32 reservedc8; /* 0x00c8 */ 195 __u16 pgmilc; /* 0x00cc */ 196 __u16 iprcc; /* 0x00ce */ 197 __u32 dxc; /* 0x00d0 */ 198 __u16 mcn; /* 0x00d4 */ 199 __u8 perc; /* 0x00d6 */ 200 __u8 peratmid; /* 0x00d7 */ 201 __u64 peraddr; /* 0x00d8 */ 202 __u8 eai; /* 0x00e0 */ 203 __u8 peraid; /* 0x00e1 */ 204 __u8 oai; /* 0x00e2 */ 205 __u8 armid; /* 0x00e3 */ 206 __u8 reservede4[4]; /* 0x00e4 */ 207 __u64 tecmc; /* 0x00e8 */ 208 __u8 reservedf0[12]; /* 0x00f0 */ 209 #define CRYCB_FORMAT1 0x00000001 210 #define CRYCB_FORMAT2 0x00000003 211 __u32 crycbd; /* 0x00fc */ 212 __u64 gcr[16]; /* 0x0100 */ 213 __u64 gbea; /* 0x0180 */ 214 __u8 reserved188[24]; /* 0x0188 */ 215 __u32 fac; /* 0x01a0 */ 216 __u8 reserved1a4[20]; /* 0x01a4 */ 217 __u64 cbrlo; /* 0x01b8 */ 218 __u8 reserved1c0[8]; /* 0x01c0 */ 219 __u32 ecd; /* 0x01c8 */ 220 __u8 reserved1cc[18]; /* 0x01cc */ 221 __u64 pp; /* 0x01de */ 222 __u8 reserved1e6[2]; /* 0x01e6 */ 223 __u64 itdba; /* 0x01e8 */ 224 __u64 riccbd; /* 0x01f0 */ 225 __u8 reserved1f8[8]; /* 0x01f8 */ 226 } __attribute__((packed)); 227 228 struct kvm_s390_itdb { 229 __u8 data[256]; 230 } __packed; 231 232 struct kvm_s390_vregs { 233 __vector128 vrs[32]; 234 __u8 reserved200[512]; /* for future vector expansion */ 235 } __packed; 236 237 struct sie_page { 238 struct kvm_s390_sie_block sie_block; 239 __u8 reserved200[1024]; /* 0x0200 */ 240 struct kvm_s390_itdb itdb; /* 0x0600 */ 241 __u8 reserved700[1280]; /* 0x0700 */ 242 struct kvm_s390_vregs vregs; /* 0x0c00 */ 243 } __packed; 244 245 struct kvm_vcpu_stat { 246 u32 exit_userspace; 247 u32 exit_null; 248 u32 exit_external_request; 249 u32 exit_external_interrupt; 250 u32 exit_stop_request; 251 u32 exit_validity; 252 u32 exit_instruction; 253 u32 halt_successful_poll; 254 u32 halt_attempted_poll; 255 u32 halt_wakeup; 256 u32 instruction_lctl; 257 u32 instruction_lctlg; 258 u32 instruction_stctl; 259 u32 instruction_stctg; 260 u32 exit_program_interruption; 261 u32 exit_instr_and_program; 262 u32 deliver_external_call; 263 u32 deliver_emergency_signal; 264 u32 deliver_service_signal; 265 u32 deliver_virtio_interrupt; 266 u32 deliver_stop_signal; 267 u32 deliver_prefix_signal; 268 u32 deliver_restart_signal; 269 u32 deliver_program_int; 270 u32 deliver_io_int; 271 u32 exit_wait_state; 272 u32 instruction_pfmf; 273 u32 instruction_stidp; 274 u32 instruction_spx; 275 u32 instruction_stpx; 276 u32 instruction_stap; 277 u32 instruction_storage_key; 278 u32 instruction_ipte_interlock; 279 u32 instruction_stsch; 280 u32 instruction_chsc; 281 u32 instruction_stsi; 282 u32 instruction_stfl; 283 u32 instruction_tprot; 284 u32 instruction_essa; 285 u32 instruction_sigp_sense; 286 u32 instruction_sigp_sense_running; 287 u32 instruction_sigp_external_call; 288 u32 instruction_sigp_emergency; 289 u32 instruction_sigp_cond_emergency; 290 u32 instruction_sigp_start; 291 u32 instruction_sigp_stop; 292 u32 instruction_sigp_stop_store_status; 293 u32 instruction_sigp_store_status; 294 u32 instruction_sigp_store_adtl_status; 295 u32 instruction_sigp_arch; 296 u32 instruction_sigp_prefix; 297 u32 instruction_sigp_restart; 298 u32 instruction_sigp_init_cpu_reset; 299 u32 instruction_sigp_cpu_reset; 300 u32 instruction_sigp_unknown; 301 u32 diagnose_10; 302 u32 diagnose_44; 303 u32 diagnose_9c; 304 u32 diagnose_258; 305 u32 diagnose_308; 306 u32 diagnose_500; 307 }; 308 309 #define PGM_OPERATION 0x01 310 #define PGM_PRIVILEGED_OP 0x02 311 #define PGM_EXECUTE 0x03 312 #define PGM_PROTECTION 0x04 313 #define PGM_ADDRESSING 0x05 314 #define PGM_SPECIFICATION 0x06 315 #define PGM_DATA 0x07 316 #define PGM_FIXED_POINT_OVERFLOW 0x08 317 #define PGM_FIXED_POINT_DIVIDE 0x09 318 #define PGM_DECIMAL_OVERFLOW 0x0a 319 #define PGM_DECIMAL_DIVIDE 0x0b 320 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 321 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 322 #define PGM_HFP_SIGNIFICANCE 0x0e 323 #define PGM_HFP_DIVIDE 0x0f 324 #define PGM_SEGMENT_TRANSLATION 0x10 325 #define PGM_PAGE_TRANSLATION 0x11 326 #define PGM_TRANSLATION_SPEC 0x12 327 #define PGM_SPECIAL_OPERATION 0x13 328 #define PGM_OPERAND 0x15 329 #define PGM_TRACE_TABEL 0x16 330 #define PGM_VECTOR_PROCESSING 0x1b 331 #define PGM_SPACE_SWITCH 0x1c 332 #define PGM_HFP_SQUARE_ROOT 0x1d 333 #define PGM_PC_TRANSLATION_SPEC 0x1f 334 #define PGM_AFX_TRANSLATION 0x20 335 #define PGM_ASX_TRANSLATION 0x21 336 #define PGM_LX_TRANSLATION 0x22 337 #define PGM_EX_TRANSLATION 0x23 338 #define PGM_PRIMARY_AUTHORITY 0x24 339 #define PGM_SECONDARY_AUTHORITY 0x25 340 #define PGM_LFX_TRANSLATION 0x26 341 #define PGM_LSX_TRANSLATION 0x27 342 #define PGM_ALET_SPECIFICATION 0x28 343 #define PGM_ALEN_TRANSLATION 0x29 344 #define PGM_ALE_SEQUENCE 0x2a 345 #define PGM_ASTE_VALIDITY 0x2b 346 #define PGM_ASTE_SEQUENCE 0x2c 347 #define PGM_EXTENDED_AUTHORITY 0x2d 348 #define PGM_LSTE_SEQUENCE 0x2e 349 #define PGM_ASTE_INSTANCE 0x2f 350 #define PGM_STACK_FULL 0x30 351 #define PGM_STACK_EMPTY 0x31 352 #define PGM_STACK_SPECIFICATION 0x32 353 #define PGM_STACK_TYPE 0x33 354 #define PGM_STACK_OPERATION 0x34 355 #define PGM_ASCE_TYPE 0x38 356 #define PGM_REGION_FIRST_TRANS 0x39 357 #define PGM_REGION_SECOND_TRANS 0x3a 358 #define PGM_REGION_THIRD_TRANS 0x3b 359 #define PGM_MONITOR 0x40 360 #define PGM_PER 0x80 361 #define PGM_CRYPTO_OPERATION 0x119 362 363 /* irq types in order of priority */ 364 enum irq_types { 365 IRQ_PEND_MCHK_EX = 0, 366 IRQ_PEND_SVC, 367 IRQ_PEND_PROG, 368 IRQ_PEND_MCHK_REP, 369 IRQ_PEND_EXT_IRQ_KEY, 370 IRQ_PEND_EXT_MALFUNC, 371 IRQ_PEND_EXT_EMERGENCY, 372 IRQ_PEND_EXT_EXTERNAL, 373 IRQ_PEND_EXT_CLOCK_COMP, 374 IRQ_PEND_EXT_CPU_TIMER, 375 IRQ_PEND_EXT_TIMING, 376 IRQ_PEND_EXT_SERVICE, 377 IRQ_PEND_EXT_HOST, 378 IRQ_PEND_PFAULT_INIT, 379 IRQ_PEND_PFAULT_DONE, 380 IRQ_PEND_VIRTIO, 381 IRQ_PEND_IO_ISC_0, 382 IRQ_PEND_IO_ISC_1, 383 IRQ_PEND_IO_ISC_2, 384 IRQ_PEND_IO_ISC_3, 385 IRQ_PEND_IO_ISC_4, 386 IRQ_PEND_IO_ISC_5, 387 IRQ_PEND_IO_ISC_6, 388 IRQ_PEND_IO_ISC_7, 389 IRQ_PEND_SIGP_STOP, 390 IRQ_PEND_RESTART, 391 IRQ_PEND_SET_PREFIX, 392 IRQ_PEND_COUNT 393 }; 394 395 /* We have 2M for virtio device descriptor pages. Smallest amount of 396 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 397 */ 398 #define KVM_S390_MAX_VIRTIO_IRQS 87381 399 400 /* 401 * Repressible (non-floating) machine check interrupts 402 * subclass bits in MCIC 403 */ 404 #define MCHK_EXTD_BIT 58 405 #define MCHK_DEGR_BIT 56 406 #define MCHK_WARN_BIT 55 407 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 408 (1UL << MCHK_EXTD_BIT) | \ 409 (1UL << MCHK_WARN_BIT)) 410 411 /* Exigent machine check interrupts subclass bits in MCIC */ 412 #define MCHK_SD_BIT 63 413 #define MCHK_PD_BIT 62 414 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 415 416 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 417 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 418 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 419 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 420 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 421 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 422 (1UL << IRQ_PEND_EXT_TIMING) | \ 423 (1UL << IRQ_PEND_EXT_HOST) | \ 424 (1UL << IRQ_PEND_EXT_SERVICE) | \ 425 (1UL << IRQ_PEND_VIRTIO) | \ 426 (1UL << IRQ_PEND_PFAULT_INIT) | \ 427 (1UL << IRQ_PEND_PFAULT_DONE)) 428 429 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 430 (1UL << IRQ_PEND_IO_ISC_1) | \ 431 (1UL << IRQ_PEND_IO_ISC_2) | \ 432 (1UL << IRQ_PEND_IO_ISC_3) | \ 433 (1UL << IRQ_PEND_IO_ISC_4) | \ 434 (1UL << IRQ_PEND_IO_ISC_5) | \ 435 (1UL << IRQ_PEND_IO_ISC_6) | \ 436 (1UL << IRQ_PEND_IO_ISC_7)) 437 438 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 439 (1UL << IRQ_PEND_MCHK_EX)) 440 441 struct kvm_s390_interrupt_info { 442 struct list_head list; 443 u64 type; 444 union { 445 struct kvm_s390_io_info io; 446 struct kvm_s390_ext_info ext; 447 struct kvm_s390_pgm_info pgm; 448 struct kvm_s390_emerg_info emerg; 449 struct kvm_s390_extcall_info extcall; 450 struct kvm_s390_prefix_info prefix; 451 struct kvm_s390_stop_info stop; 452 struct kvm_s390_mchk_info mchk; 453 }; 454 }; 455 456 struct kvm_s390_irq_payload { 457 struct kvm_s390_io_info io; 458 struct kvm_s390_ext_info ext; 459 struct kvm_s390_pgm_info pgm; 460 struct kvm_s390_emerg_info emerg; 461 struct kvm_s390_extcall_info extcall; 462 struct kvm_s390_prefix_info prefix; 463 struct kvm_s390_stop_info stop; 464 struct kvm_s390_mchk_info mchk; 465 }; 466 467 struct kvm_s390_local_interrupt { 468 spinlock_t lock; 469 struct kvm_s390_float_interrupt *float_int; 470 wait_queue_head_t *wq; 471 atomic_t *cpuflags; 472 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 473 struct kvm_s390_irq_payload irq; 474 unsigned long pending_irqs; 475 }; 476 477 #define FIRQ_LIST_IO_ISC_0 0 478 #define FIRQ_LIST_IO_ISC_1 1 479 #define FIRQ_LIST_IO_ISC_2 2 480 #define FIRQ_LIST_IO_ISC_3 3 481 #define FIRQ_LIST_IO_ISC_4 4 482 #define FIRQ_LIST_IO_ISC_5 5 483 #define FIRQ_LIST_IO_ISC_6 6 484 #define FIRQ_LIST_IO_ISC_7 7 485 #define FIRQ_LIST_PFAULT 8 486 #define FIRQ_LIST_VIRTIO 9 487 #define FIRQ_LIST_COUNT 10 488 #define FIRQ_CNTR_IO 0 489 #define FIRQ_CNTR_SERVICE 1 490 #define FIRQ_CNTR_VIRTIO 2 491 #define FIRQ_CNTR_PFAULT 3 492 #define FIRQ_MAX_COUNT 4 493 494 struct kvm_s390_float_interrupt { 495 unsigned long pending_irqs; 496 spinlock_t lock; 497 struct list_head lists[FIRQ_LIST_COUNT]; 498 int counters[FIRQ_MAX_COUNT]; 499 struct kvm_s390_mchk_info mchk; 500 struct kvm_s390_ext_info srv_signal; 501 int next_rr_cpu; 502 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; 503 }; 504 505 struct kvm_hw_wp_info_arch { 506 unsigned long addr; 507 unsigned long phys_addr; 508 int len; 509 char *old_data; 510 }; 511 512 struct kvm_hw_bp_info_arch { 513 unsigned long addr; 514 int len; 515 }; 516 517 /* 518 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 519 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 520 * arch/s390/include/uapi/asm/kvm.h 521 */ 522 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 523 524 #define guestdbg_enabled(vcpu) \ 525 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 526 #define guestdbg_sstep_enabled(vcpu) \ 527 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 528 #define guestdbg_hw_bp_enabled(vcpu) \ 529 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 530 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 531 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 532 533 struct kvm_guestdbg_info_arch { 534 unsigned long cr0; 535 unsigned long cr9; 536 unsigned long cr10; 537 unsigned long cr11; 538 struct kvm_hw_bp_info_arch *hw_bp_info; 539 struct kvm_hw_wp_info_arch *hw_wp_info; 540 int nr_hw_bp; 541 int nr_hw_wp; 542 unsigned long last_bp; 543 }; 544 545 struct kvm_vcpu_arch { 546 struct kvm_s390_sie_block *sie_block; 547 unsigned int host_acrs[NUM_ACRS]; 548 struct fpu host_fpregs; 549 struct fpu guest_fpregs; 550 struct kvm_s390_local_interrupt local_int; 551 struct hrtimer ckc_timer; 552 struct kvm_s390_pgm_info pgm; 553 union { 554 struct cpuid cpu_id; 555 u64 stidp_data; 556 }; 557 struct gmap *gmap; 558 struct kvm_guestdbg_info_arch guestdbg; 559 unsigned long pfault_token; 560 unsigned long pfault_select; 561 unsigned long pfault_compare; 562 }; 563 564 struct kvm_vm_stat { 565 u32 remote_tlb_flush; 566 }; 567 568 struct kvm_arch_memory_slot { 569 }; 570 571 struct s390_map_info { 572 struct list_head list; 573 __u64 guest_addr; 574 __u64 addr; 575 struct page *page; 576 }; 577 578 struct s390_io_adapter { 579 unsigned int id; 580 int isc; 581 bool maskable; 582 bool masked; 583 bool swap; 584 struct rw_semaphore maps_lock; 585 struct list_head maps; 586 atomic_t nr_maps; 587 }; 588 589 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 590 #define MAX_S390_ADAPTER_MAPS 256 591 592 /* maximum size of facilities and facility mask is 2k bytes */ 593 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 594 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 595 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 596 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 597 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 598 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 599 600 struct kvm_s390_fac { 601 /* facility list requested by guest */ 602 __u64 list[S390_ARCH_FAC_LIST_SIZE_U64]; 603 /* facility mask supported by kvm & hosting machine */ 604 __u64 mask[S390_ARCH_FAC_LIST_SIZE_U64]; 605 }; 606 607 struct kvm_s390_cpu_model { 608 struct kvm_s390_fac *fac; 609 struct cpuid cpu_id; 610 unsigned short ibc; 611 }; 612 613 struct kvm_s390_crypto { 614 struct kvm_s390_crypto_cb *crycb; 615 __u32 crycbd; 616 __u8 aes_kw; 617 __u8 dea_kw; 618 }; 619 620 struct kvm_s390_crypto_cb { 621 __u8 reserved00[72]; /* 0x0000 */ 622 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 623 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 624 __u8 reserved80[128]; /* 0x0080 */ 625 }; 626 627 struct kvm_arch{ 628 void *sca; 629 int use_esca; 630 rwlock_t sca_lock; 631 debug_info_t *dbf; 632 struct kvm_s390_float_interrupt float_int; 633 struct kvm_device *flic; 634 struct gmap *gmap; 635 unsigned long mem_limit; 636 int css_support; 637 int use_irqchip; 638 int use_cmma; 639 int user_cpu_state_ctrl; 640 int user_sigp; 641 int user_stsi; 642 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 643 wait_queue_head_t ipte_wq; 644 int ipte_lock_count; 645 struct mutex ipte_mutex; 646 spinlock_t start_stop_lock; 647 struct kvm_s390_cpu_model model; 648 struct kvm_s390_crypto crypto; 649 u64 epoch; 650 }; 651 652 #define KVM_HVA_ERR_BAD (-1UL) 653 #define KVM_HVA_ERR_RO_BAD (-2UL) 654 655 static inline bool kvm_is_error_hva(unsigned long addr) 656 { 657 return IS_ERR_VALUE(addr); 658 } 659 660 #define ASYNC_PF_PER_VCPU 64 661 struct kvm_arch_async_pf { 662 unsigned long pfault_token; 663 }; 664 665 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 666 667 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 668 struct kvm_async_pf *work); 669 670 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 671 struct kvm_async_pf *work); 672 673 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 674 struct kvm_async_pf *work); 675 676 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 677 extern char sie_exit; 678 679 static inline void kvm_arch_hardware_disable(void) {} 680 static inline void kvm_arch_check_processor_compat(void *rtn) {} 681 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 682 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 683 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 684 static inline void kvm_arch_free_memslot(struct kvm *kvm, 685 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 686 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {} 687 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 688 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 689 struct kvm_memory_slot *slot) {} 690 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 691 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 692 693 #endif 694