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 0 42 43 /* s390-specific vcpu->requests bit members */ 44 #define KVM_REQ_ENABLE_IBS 8 45 #define KVM_REQ_DISABLE_IBS 9 46 47 #define SIGP_CTRL_C 0x80 48 #define SIGP_CTRL_SCN_MASK 0x3f 49 50 union bsca_sigp_ctrl { 51 __u8 value; 52 struct { 53 __u8 c : 1; 54 __u8 r : 1; 55 __u8 scn : 6; 56 }; 57 } __packed; 58 59 union esca_sigp_ctrl { 60 __u16 value; 61 struct { 62 __u8 c : 1; 63 __u8 reserved: 7; 64 __u8 scn; 65 }; 66 } __packed; 67 68 struct esca_entry { 69 union esca_sigp_ctrl sigp_ctrl; 70 __u16 reserved1[3]; 71 __u64 sda; 72 __u64 reserved2[6]; 73 } __packed; 74 75 struct bsca_entry { 76 __u8 reserved0; 77 union bsca_sigp_ctrl sigp_ctrl; 78 __u16 reserved[3]; 79 __u64 sda; 80 __u64 reserved2[2]; 81 } __attribute__((packed)); 82 83 union ipte_control { 84 unsigned long val; 85 struct { 86 unsigned long k : 1; 87 unsigned long kh : 31; 88 unsigned long kg : 32; 89 }; 90 }; 91 92 struct bsca_block { 93 union ipte_control ipte_control; 94 __u64 reserved[5]; 95 __u64 mcn; 96 __u64 reserved2; 97 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS]; 98 } __attribute__((packed)); 99 100 struct esca_block { 101 union ipte_control ipte_control; 102 __u64 reserved1[7]; 103 __u64 mcn[4]; 104 __u64 reserved2[20]; 105 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS]; 106 } __packed; 107 108 #define CPUSTAT_STOPPED 0x80000000 109 #define CPUSTAT_WAIT 0x10000000 110 #define CPUSTAT_ECALL_PEND 0x08000000 111 #define CPUSTAT_STOP_INT 0x04000000 112 #define CPUSTAT_IO_INT 0x02000000 113 #define CPUSTAT_EXT_INT 0x01000000 114 #define CPUSTAT_RUNNING 0x00800000 115 #define CPUSTAT_RETAINED 0x00400000 116 #define CPUSTAT_TIMING_SUB 0x00020000 117 #define CPUSTAT_SIE_SUB 0x00010000 118 #define CPUSTAT_RRF 0x00008000 119 #define CPUSTAT_SLSV 0x00004000 120 #define CPUSTAT_SLSR 0x00002000 121 #define CPUSTAT_ZARCH 0x00000800 122 #define CPUSTAT_MCDS 0x00000100 123 #define CPUSTAT_SM 0x00000080 124 #define CPUSTAT_IBS 0x00000040 125 #define CPUSTAT_GED2 0x00000010 126 #define CPUSTAT_G 0x00000008 127 #define CPUSTAT_GED 0x00000004 128 #define CPUSTAT_J 0x00000002 129 #define CPUSTAT_P 0x00000001 130 131 struct kvm_s390_sie_block { 132 atomic_t cpuflags; /* 0x0000 */ 133 __u32 : 1; /* 0x0004 */ 134 __u32 prefix : 18; 135 __u32 : 1; 136 __u32 ibc : 12; 137 __u8 reserved08[4]; /* 0x0008 */ 138 #define PROG_IN_SIE (1<<0) 139 __u32 prog0c; /* 0x000c */ 140 __u8 reserved10[16]; /* 0x0010 */ 141 #define PROG_BLOCK_SIE (1<<0) 142 #define PROG_REQUEST (1<<1) 143 atomic_t prog20; /* 0x0020 */ 144 __u8 reserved24[4]; /* 0x0024 */ 145 __u64 cputm; /* 0x0028 */ 146 __u64 ckc; /* 0x0030 */ 147 __u64 epoch; /* 0x0038 */ 148 __u8 reserved40[4]; /* 0x0040 */ 149 #define LCTL_CR0 0x8000 150 #define LCTL_CR6 0x0200 151 #define LCTL_CR9 0x0040 152 #define LCTL_CR10 0x0020 153 #define LCTL_CR11 0x0010 154 #define LCTL_CR14 0x0002 155 __u16 lctl; /* 0x0044 */ 156 __s16 icpua; /* 0x0046 */ 157 #define ICTL_PINT 0x20000000 158 #define ICTL_LPSW 0x00400000 159 #define ICTL_STCTL 0x00040000 160 #define ICTL_ISKE 0x00004000 161 #define ICTL_SSKE 0x00002000 162 #define ICTL_RRBE 0x00001000 163 #define ICTL_TPROT 0x00000200 164 __u32 ictl; /* 0x0048 */ 165 __u32 eca; /* 0x004c */ 166 #define ICPT_INST 0x04 167 #define ICPT_PROGI 0x08 168 #define ICPT_INSTPROGI 0x0C 169 #define ICPT_OPEREXC 0x2C 170 #define ICPT_PARTEXEC 0x38 171 #define ICPT_IOINST 0x40 172 __u8 icptcode; /* 0x0050 */ 173 __u8 icptstatus; /* 0x0051 */ 174 __u16 ihcpu; /* 0x0052 */ 175 __u8 reserved54[2]; /* 0x0054 */ 176 __u16 ipa; /* 0x0056 */ 177 __u32 ipb; /* 0x0058 */ 178 __u32 scaoh; /* 0x005c */ 179 __u8 reserved60; /* 0x0060 */ 180 __u8 ecb; /* 0x0061 */ 181 __u8 ecb2; /* 0x0062 */ 182 #define ECB3_AES 0x04 183 #define ECB3_DEA 0x08 184 __u8 ecb3; /* 0x0063 */ 185 __u32 scaol; /* 0x0064 */ 186 __u8 reserved68[4]; /* 0x0068 */ 187 __u32 todpr; /* 0x006c */ 188 __u8 reserved70[32]; /* 0x0070 */ 189 psw_t gpsw; /* 0x0090 */ 190 __u64 gg14; /* 0x00a0 */ 191 __u64 gg15; /* 0x00a8 */ 192 __u8 reservedb0[20]; /* 0x00b0 */ 193 __u16 extcpuaddr; /* 0x00c4 */ 194 __u16 eic; /* 0x00c6 */ 195 __u32 reservedc8; /* 0x00c8 */ 196 __u16 pgmilc; /* 0x00cc */ 197 __u16 iprcc; /* 0x00ce */ 198 __u32 dxc; /* 0x00d0 */ 199 __u16 mcn; /* 0x00d4 */ 200 __u8 perc; /* 0x00d6 */ 201 __u8 peratmid; /* 0x00d7 */ 202 __u64 peraddr; /* 0x00d8 */ 203 __u8 eai; /* 0x00e0 */ 204 __u8 peraid; /* 0x00e1 */ 205 __u8 oai; /* 0x00e2 */ 206 __u8 armid; /* 0x00e3 */ 207 __u8 reservede4[4]; /* 0x00e4 */ 208 __u64 tecmc; /* 0x00e8 */ 209 __u8 reservedf0[12]; /* 0x00f0 */ 210 #define CRYCB_FORMAT1 0x00000001 211 #define CRYCB_FORMAT2 0x00000003 212 __u32 crycbd; /* 0x00fc */ 213 __u64 gcr[16]; /* 0x0100 */ 214 __u64 gbea; /* 0x0180 */ 215 __u8 reserved188[24]; /* 0x0188 */ 216 __u32 fac; /* 0x01a0 */ 217 __u8 reserved1a4[20]; /* 0x01a4 */ 218 __u64 cbrlo; /* 0x01b8 */ 219 __u8 reserved1c0[8]; /* 0x01c0 */ 220 __u32 ecd; /* 0x01c8 */ 221 __u8 reserved1cc[18]; /* 0x01cc */ 222 __u64 pp; /* 0x01de */ 223 __u8 reserved1e6[2]; /* 0x01e6 */ 224 __u64 itdba; /* 0x01e8 */ 225 __u64 riccbd; /* 0x01f0 */ 226 __u8 reserved1f8[8]; /* 0x01f8 */ 227 } __attribute__((packed)); 228 229 struct kvm_s390_itdb { 230 __u8 data[256]; 231 } __packed; 232 233 struct sie_page { 234 struct kvm_s390_sie_block sie_block; 235 __u8 reserved200[1024]; /* 0x0200 */ 236 struct kvm_s390_itdb itdb; /* 0x0600 */ 237 __u8 reserved700[2304]; /* 0x0700 */ 238 } __packed; 239 240 struct kvm_vcpu_stat { 241 u32 exit_userspace; 242 u32 exit_null; 243 u32 exit_external_request; 244 u32 exit_external_interrupt; 245 u32 exit_stop_request; 246 u32 exit_validity; 247 u32 exit_instruction; 248 u32 halt_successful_poll; 249 u32 halt_attempted_poll; 250 u32 halt_wakeup; 251 u32 instruction_lctl; 252 u32 instruction_lctlg; 253 u32 instruction_stctl; 254 u32 instruction_stctg; 255 u32 exit_program_interruption; 256 u32 exit_instr_and_program; 257 u32 deliver_external_call; 258 u32 deliver_emergency_signal; 259 u32 deliver_service_signal; 260 u32 deliver_virtio_interrupt; 261 u32 deliver_stop_signal; 262 u32 deliver_prefix_signal; 263 u32 deliver_restart_signal; 264 u32 deliver_program_int; 265 u32 deliver_io_int; 266 u32 exit_wait_state; 267 u32 instruction_pfmf; 268 u32 instruction_stidp; 269 u32 instruction_spx; 270 u32 instruction_stpx; 271 u32 instruction_stap; 272 u32 instruction_storage_key; 273 u32 instruction_ipte_interlock; 274 u32 instruction_stsch; 275 u32 instruction_chsc; 276 u32 instruction_stsi; 277 u32 instruction_stfl; 278 u32 instruction_tprot; 279 u32 instruction_essa; 280 u32 instruction_sigp_sense; 281 u32 instruction_sigp_sense_running; 282 u32 instruction_sigp_external_call; 283 u32 instruction_sigp_emergency; 284 u32 instruction_sigp_cond_emergency; 285 u32 instruction_sigp_start; 286 u32 instruction_sigp_stop; 287 u32 instruction_sigp_stop_store_status; 288 u32 instruction_sigp_store_status; 289 u32 instruction_sigp_store_adtl_status; 290 u32 instruction_sigp_arch; 291 u32 instruction_sigp_prefix; 292 u32 instruction_sigp_restart; 293 u32 instruction_sigp_init_cpu_reset; 294 u32 instruction_sigp_cpu_reset; 295 u32 instruction_sigp_unknown; 296 u32 diagnose_10; 297 u32 diagnose_44; 298 u32 diagnose_9c; 299 u32 diagnose_258; 300 u32 diagnose_308; 301 u32 diagnose_500; 302 }; 303 304 #define PGM_OPERATION 0x01 305 #define PGM_PRIVILEGED_OP 0x02 306 #define PGM_EXECUTE 0x03 307 #define PGM_PROTECTION 0x04 308 #define PGM_ADDRESSING 0x05 309 #define PGM_SPECIFICATION 0x06 310 #define PGM_DATA 0x07 311 #define PGM_FIXED_POINT_OVERFLOW 0x08 312 #define PGM_FIXED_POINT_DIVIDE 0x09 313 #define PGM_DECIMAL_OVERFLOW 0x0a 314 #define PGM_DECIMAL_DIVIDE 0x0b 315 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 316 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 317 #define PGM_HFP_SIGNIFICANCE 0x0e 318 #define PGM_HFP_DIVIDE 0x0f 319 #define PGM_SEGMENT_TRANSLATION 0x10 320 #define PGM_PAGE_TRANSLATION 0x11 321 #define PGM_TRANSLATION_SPEC 0x12 322 #define PGM_SPECIAL_OPERATION 0x13 323 #define PGM_OPERAND 0x15 324 #define PGM_TRACE_TABEL 0x16 325 #define PGM_VECTOR_PROCESSING 0x1b 326 #define PGM_SPACE_SWITCH 0x1c 327 #define PGM_HFP_SQUARE_ROOT 0x1d 328 #define PGM_PC_TRANSLATION_SPEC 0x1f 329 #define PGM_AFX_TRANSLATION 0x20 330 #define PGM_ASX_TRANSLATION 0x21 331 #define PGM_LX_TRANSLATION 0x22 332 #define PGM_EX_TRANSLATION 0x23 333 #define PGM_PRIMARY_AUTHORITY 0x24 334 #define PGM_SECONDARY_AUTHORITY 0x25 335 #define PGM_LFX_TRANSLATION 0x26 336 #define PGM_LSX_TRANSLATION 0x27 337 #define PGM_ALET_SPECIFICATION 0x28 338 #define PGM_ALEN_TRANSLATION 0x29 339 #define PGM_ALE_SEQUENCE 0x2a 340 #define PGM_ASTE_VALIDITY 0x2b 341 #define PGM_ASTE_SEQUENCE 0x2c 342 #define PGM_EXTENDED_AUTHORITY 0x2d 343 #define PGM_LSTE_SEQUENCE 0x2e 344 #define PGM_ASTE_INSTANCE 0x2f 345 #define PGM_STACK_FULL 0x30 346 #define PGM_STACK_EMPTY 0x31 347 #define PGM_STACK_SPECIFICATION 0x32 348 #define PGM_STACK_TYPE 0x33 349 #define PGM_STACK_OPERATION 0x34 350 #define PGM_ASCE_TYPE 0x38 351 #define PGM_REGION_FIRST_TRANS 0x39 352 #define PGM_REGION_SECOND_TRANS 0x3a 353 #define PGM_REGION_THIRD_TRANS 0x3b 354 #define PGM_MONITOR 0x40 355 #define PGM_PER 0x80 356 #define PGM_CRYPTO_OPERATION 0x119 357 358 /* irq types in order of priority */ 359 enum irq_types { 360 IRQ_PEND_MCHK_EX = 0, 361 IRQ_PEND_SVC, 362 IRQ_PEND_PROG, 363 IRQ_PEND_MCHK_REP, 364 IRQ_PEND_EXT_IRQ_KEY, 365 IRQ_PEND_EXT_MALFUNC, 366 IRQ_PEND_EXT_EMERGENCY, 367 IRQ_PEND_EXT_EXTERNAL, 368 IRQ_PEND_EXT_CLOCK_COMP, 369 IRQ_PEND_EXT_CPU_TIMER, 370 IRQ_PEND_EXT_TIMING, 371 IRQ_PEND_EXT_SERVICE, 372 IRQ_PEND_EXT_HOST, 373 IRQ_PEND_PFAULT_INIT, 374 IRQ_PEND_PFAULT_DONE, 375 IRQ_PEND_VIRTIO, 376 IRQ_PEND_IO_ISC_0, 377 IRQ_PEND_IO_ISC_1, 378 IRQ_PEND_IO_ISC_2, 379 IRQ_PEND_IO_ISC_3, 380 IRQ_PEND_IO_ISC_4, 381 IRQ_PEND_IO_ISC_5, 382 IRQ_PEND_IO_ISC_6, 383 IRQ_PEND_IO_ISC_7, 384 IRQ_PEND_SIGP_STOP, 385 IRQ_PEND_RESTART, 386 IRQ_PEND_SET_PREFIX, 387 IRQ_PEND_COUNT 388 }; 389 390 /* We have 2M for virtio device descriptor pages. Smallest amount of 391 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 392 */ 393 #define KVM_S390_MAX_VIRTIO_IRQS 87381 394 395 /* 396 * Repressible (non-floating) machine check interrupts 397 * subclass bits in MCIC 398 */ 399 #define MCHK_EXTD_BIT 58 400 #define MCHK_DEGR_BIT 56 401 #define MCHK_WARN_BIT 55 402 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 403 (1UL << MCHK_EXTD_BIT) | \ 404 (1UL << MCHK_WARN_BIT)) 405 406 /* Exigent machine check interrupts subclass bits in MCIC */ 407 #define MCHK_SD_BIT 63 408 #define MCHK_PD_BIT 62 409 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 410 411 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 412 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 413 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 414 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 415 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 416 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 417 (1UL << IRQ_PEND_EXT_TIMING) | \ 418 (1UL << IRQ_PEND_EXT_HOST) | \ 419 (1UL << IRQ_PEND_EXT_SERVICE) | \ 420 (1UL << IRQ_PEND_VIRTIO) | \ 421 (1UL << IRQ_PEND_PFAULT_INIT) | \ 422 (1UL << IRQ_PEND_PFAULT_DONE)) 423 424 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 425 (1UL << IRQ_PEND_IO_ISC_1) | \ 426 (1UL << IRQ_PEND_IO_ISC_2) | \ 427 (1UL << IRQ_PEND_IO_ISC_3) | \ 428 (1UL << IRQ_PEND_IO_ISC_4) | \ 429 (1UL << IRQ_PEND_IO_ISC_5) | \ 430 (1UL << IRQ_PEND_IO_ISC_6) | \ 431 (1UL << IRQ_PEND_IO_ISC_7)) 432 433 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 434 (1UL << IRQ_PEND_MCHK_EX)) 435 436 struct kvm_s390_interrupt_info { 437 struct list_head list; 438 u64 type; 439 union { 440 struct kvm_s390_io_info io; 441 struct kvm_s390_ext_info ext; 442 struct kvm_s390_pgm_info pgm; 443 struct kvm_s390_emerg_info emerg; 444 struct kvm_s390_extcall_info extcall; 445 struct kvm_s390_prefix_info prefix; 446 struct kvm_s390_stop_info stop; 447 struct kvm_s390_mchk_info mchk; 448 }; 449 }; 450 451 struct kvm_s390_irq_payload { 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 struct kvm_s390_local_interrupt { 463 spinlock_t lock; 464 struct kvm_s390_float_interrupt *float_int; 465 struct swait_queue_head *wq; 466 atomic_t *cpuflags; 467 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 468 struct kvm_s390_irq_payload irq; 469 unsigned long pending_irqs; 470 }; 471 472 #define FIRQ_LIST_IO_ISC_0 0 473 #define FIRQ_LIST_IO_ISC_1 1 474 #define FIRQ_LIST_IO_ISC_2 2 475 #define FIRQ_LIST_IO_ISC_3 3 476 #define FIRQ_LIST_IO_ISC_4 4 477 #define FIRQ_LIST_IO_ISC_5 5 478 #define FIRQ_LIST_IO_ISC_6 6 479 #define FIRQ_LIST_IO_ISC_7 7 480 #define FIRQ_LIST_PFAULT 8 481 #define FIRQ_LIST_VIRTIO 9 482 #define FIRQ_LIST_COUNT 10 483 #define FIRQ_CNTR_IO 0 484 #define FIRQ_CNTR_SERVICE 1 485 #define FIRQ_CNTR_VIRTIO 2 486 #define FIRQ_CNTR_PFAULT 3 487 #define FIRQ_MAX_COUNT 4 488 489 struct kvm_s390_float_interrupt { 490 unsigned long pending_irqs; 491 spinlock_t lock; 492 struct list_head lists[FIRQ_LIST_COUNT]; 493 int counters[FIRQ_MAX_COUNT]; 494 struct kvm_s390_mchk_info mchk; 495 struct kvm_s390_ext_info srv_signal; 496 int next_rr_cpu; 497 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; 498 }; 499 500 struct kvm_hw_wp_info_arch { 501 unsigned long addr; 502 unsigned long phys_addr; 503 int len; 504 char *old_data; 505 }; 506 507 struct kvm_hw_bp_info_arch { 508 unsigned long addr; 509 int len; 510 }; 511 512 /* 513 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 514 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 515 * arch/s390/include/uapi/asm/kvm.h 516 */ 517 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 518 519 #define guestdbg_enabled(vcpu) \ 520 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 521 #define guestdbg_sstep_enabled(vcpu) \ 522 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 523 #define guestdbg_hw_bp_enabled(vcpu) \ 524 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 525 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 526 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 527 528 struct kvm_guestdbg_info_arch { 529 unsigned long cr0; 530 unsigned long cr9; 531 unsigned long cr10; 532 unsigned long cr11; 533 struct kvm_hw_bp_info_arch *hw_bp_info; 534 struct kvm_hw_wp_info_arch *hw_wp_info; 535 int nr_hw_bp; 536 int nr_hw_wp; 537 unsigned long last_bp; 538 }; 539 540 struct kvm_vcpu_arch { 541 struct kvm_s390_sie_block *sie_block; 542 unsigned int host_acrs[NUM_ACRS]; 543 struct fpu host_fpregs; 544 struct kvm_s390_local_interrupt local_int; 545 struct hrtimer ckc_timer; 546 struct kvm_s390_pgm_info pgm; 547 union { 548 struct cpuid cpu_id; 549 u64 stidp_data; 550 }; 551 struct gmap *gmap; 552 struct kvm_guestdbg_info_arch guestdbg; 553 unsigned long pfault_token; 554 unsigned long pfault_select; 555 unsigned long pfault_compare; 556 bool cputm_enabled; 557 /* 558 * The seqcount protects updates to cputm_start and sie_block.cputm, 559 * this way we can have non-blocking reads with consistent values. 560 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 561 * values and to start/stop/enable/disable cpu timer accounting. 562 */ 563 seqcount_t cputm_seqcount; 564 __u64 cputm_start; 565 }; 566 567 struct kvm_vm_stat { 568 u32 remote_tlb_flush; 569 }; 570 571 struct kvm_arch_memory_slot { 572 }; 573 574 struct s390_map_info { 575 struct list_head list; 576 __u64 guest_addr; 577 __u64 addr; 578 struct page *page; 579 }; 580 581 struct s390_io_adapter { 582 unsigned int id; 583 int isc; 584 bool maskable; 585 bool masked; 586 bool swap; 587 struct rw_semaphore maps_lock; 588 struct list_head maps; 589 atomic_t nr_maps; 590 }; 591 592 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 593 #define MAX_S390_ADAPTER_MAPS 256 594 595 /* maximum size of facilities and facility mask is 2k bytes */ 596 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 597 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 598 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 599 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 600 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 601 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 602 603 struct kvm_s390_cpu_model { 604 /* facility mask supported by kvm & hosting machine */ 605 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 606 /* facility list requested by guest (in dma page) */ 607 __u64 *fac_list; 608 struct cpuid cpu_id; 609 unsigned short ibc; 610 }; 611 612 struct kvm_s390_crypto { 613 struct kvm_s390_crypto_cb *crycb; 614 __u32 crycbd; 615 __u8 aes_kw; 616 __u8 dea_kw; 617 }; 618 619 struct kvm_s390_crypto_cb { 620 __u8 reserved00[72]; /* 0x0000 */ 621 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 622 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 623 __u8 reserved80[128]; /* 0x0080 */ 624 }; 625 626 /* 627 * sie_page2 has to be allocated as DMA because fac_list and crycb need 628 * 31bit addresses in the sie control block. 629 */ 630 struct sie_page2 { 631 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 632 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 633 u8 reserved900[0x1000 - 0x900]; /* 0x0900 */ 634 } __packed; 635 636 struct kvm_arch{ 637 void *sca; 638 int use_esca; 639 rwlock_t sca_lock; 640 debug_info_t *dbf; 641 struct kvm_s390_float_interrupt float_int; 642 struct kvm_device *flic; 643 struct gmap *gmap; 644 unsigned long mem_limit; 645 int css_support; 646 int use_irqchip; 647 int use_cmma; 648 int user_cpu_state_ctrl; 649 int user_sigp; 650 int user_stsi; 651 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 652 wait_queue_head_t ipte_wq; 653 int ipte_lock_count; 654 struct mutex ipte_mutex; 655 spinlock_t start_stop_lock; 656 struct sie_page2 *sie_page2; 657 struct kvm_s390_cpu_model model; 658 struct kvm_s390_crypto crypto; 659 u64 epoch; 660 }; 661 662 #define KVM_HVA_ERR_BAD (-1UL) 663 #define KVM_HVA_ERR_RO_BAD (-2UL) 664 665 static inline bool kvm_is_error_hva(unsigned long addr) 666 { 667 return IS_ERR_VALUE(addr); 668 } 669 670 #define ASYNC_PF_PER_VCPU 64 671 struct kvm_arch_async_pf { 672 unsigned long pfault_token; 673 }; 674 675 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 676 677 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 678 struct kvm_async_pf *work); 679 680 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 681 struct kvm_async_pf *work); 682 683 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 684 struct kvm_async_pf *work); 685 686 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 687 extern char sie_exit; 688 689 static inline void kvm_arch_hardware_disable(void) {} 690 static inline void kvm_arch_check_processor_compat(void *rtn) {} 691 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 692 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 693 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 694 static inline void kvm_arch_free_memslot(struct kvm *kvm, 695 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 696 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {} 697 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 698 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 699 struct kvm_memory_slot *slot) {} 700 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 701 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 702 703 #endif 704