1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * definition for kernel virtual machines on s390 4 * 5 * Copyright IBM Corp. 2008, 2018 6 * 7 * Author(s): Carsten Otte <cotte@de.ibm.com> 8 */ 9 10 11 #ifndef ASM_KVM_HOST_H 12 #define ASM_KVM_HOST_H 13 14 #include <linux/types.h> 15 #include <linux/hrtimer.h> 16 #include <linux/interrupt.h> 17 #include <linux/kvm_types.h> 18 #include <linux/kvm_host.h> 19 #include <linux/kvm.h> 20 #include <linux/seqlock.h> 21 #include <linux/module.h> 22 #include <asm/debug.h> 23 #include <asm/cpu.h> 24 #include <asm/fpu/api.h> 25 #include <asm/isc.h> 26 #include <asm/guarded_storage.h> 27 28 #define KVM_S390_BSCA_CPU_SLOTS 64 29 #define KVM_S390_ESCA_CPU_SLOTS 248 30 #define KVM_MAX_VCPUS 255 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 50000 41 42 /* s390-specific vcpu->requests bit members */ 43 #define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0) 44 #define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1) 45 #define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2) 46 #define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3) 47 #define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4) 48 #define KVM_REQ_VSIE_RESTART KVM_ARCH_REQ(5) 49 50 #define SIGP_CTRL_C 0x80 51 #define SIGP_CTRL_SCN_MASK 0x3f 52 53 union bsca_sigp_ctrl { 54 __u8 value; 55 struct { 56 __u8 c : 1; 57 __u8 r : 1; 58 __u8 scn : 6; 59 }; 60 }; 61 62 union esca_sigp_ctrl { 63 __u16 value; 64 struct { 65 __u8 c : 1; 66 __u8 reserved: 7; 67 __u8 scn; 68 }; 69 }; 70 71 struct esca_entry { 72 union esca_sigp_ctrl sigp_ctrl; 73 __u16 reserved1[3]; 74 __u64 sda; 75 __u64 reserved2[6]; 76 }; 77 78 struct bsca_entry { 79 __u8 reserved0; 80 union bsca_sigp_ctrl sigp_ctrl; 81 __u16 reserved[3]; 82 __u64 sda; 83 __u64 reserved2[2]; 84 }; 85 86 union ipte_control { 87 unsigned long val; 88 struct { 89 unsigned long k : 1; 90 unsigned long kh : 31; 91 unsigned long kg : 32; 92 }; 93 }; 94 95 struct bsca_block { 96 union ipte_control ipte_control; 97 __u64 reserved[5]; 98 __u64 mcn; 99 __u64 reserved2; 100 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS]; 101 }; 102 103 struct esca_block { 104 union ipte_control ipte_control; 105 __u64 reserved1[7]; 106 __u64 mcn[4]; 107 __u64 reserved2[20]; 108 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS]; 109 }; 110 111 /* 112 * This struct is used to store some machine check info from lowcore 113 * for machine checks that happen while the guest is running. 114 * This info in host's lowcore might be overwritten by a second machine 115 * check from host when host is in the machine check's high-level handling. 116 * The size is 24 bytes. 117 */ 118 struct mcck_volatile_info { 119 __u64 mcic; 120 __u64 failing_storage_address; 121 __u32 ext_damage_code; 122 __u32 reserved; 123 }; 124 125 #define CPUSTAT_STOPPED 0x80000000 126 #define CPUSTAT_WAIT 0x10000000 127 #define CPUSTAT_ECALL_PEND 0x08000000 128 #define CPUSTAT_STOP_INT 0x04000000 129 #define CPUSTAT_IO_INT 0x02000000 130 #define CPUSTAT_EXT_INT 0x01000000 131 #define CPUSTAT_RUNNING 0x00800000 132 #define CPUSTAT_RETAINED 0x00400000 133 #define CPUSTAT_TIMING_SUB 0x00020000 134 #define CPUSTAT_SIE_SUB 0x00010000 135 #define CPUSTAT_RRF 0x00008000 136 #define CPUSTAT_SLSV 0x00004000 137 #define CPUSTAT_SLSR 0x00002000 138 #define CPUSTAT_ZARCH 0x00000800 139 #define CPUSTAT_MCDS 0x00000100 140 #define CPUSTAT_KSS 0x00000200 141 #define CPUSTAT_SM 0x00000080 142 #define CPUSTAT_IBS 0x00000040 143 #define CPUSTAT_GED2 0x00000010 144 #define CPUSTAT_G 0x00000008 145 #define CPUSTAT_GED 0x00000004 146 #define CPUSTAT_J 0x00000002 147 #define CPUSTAT_P 0x00000001 148 149 struct kvm_s390_sie_block { 150 atomic_t cpuflags; /* 0x0000 */ 151 __u32 : 1; /* 0x0004 */ 152 __u32 prefix : 18; 153 __u32 : 1; 154 __u32 ibc : 12; 155 __u8 reserved08[4]; /* 0x0008 */ 156 #define PROG_IN_SIE (1<<0) 157 __u32 prog0c; /* 0x000c */ 158 __u8 reserved10[16]; /* 0x0010 */ 159 #define PROG_BLOCK_SIE (1<<0) 160 #define PROG_REQUEST (1<<1) 161 atomic_t prog20; /* 0x0020 */ 162 __u8 reserved24[4]; /* 0x0024 */ 163 __u64 cputm; /* 0x0028 */ 164 __u64 ckc; /* 0x0030 */ 165 __u64 epoch; /* 0x0038 */ 166 __u32 svcc; /* 0x0040 */ 167 #define LCTL_CR0 0x8000 168 #define LCTL_CR6 0x0200 169 #define LCTL_CR9 0x0040 170 #define LCTL_CR10 0x0020 171 #define LCTL_CR11 0x0010 172 #define LCTL_CR14 0x0002 173 __u16 lctl; /* 0x0044 */ 174 __s16 icpua; /* 0x0046 */ 175 #define ICTL_OPEREXC 0x80000000 176 #define ICTL_PINT 0x20000000 177 #define ICTL_LPSW 0x00400000 178 #define ICTL_STCTL 0x00040000 179 #define ICTL_ISKE 0x00004000 180 #define ICTL_SSKE 0x00002000 181 #define ICTL_RRBE 0x00001000 182 #define ICTL_TPROT 0x00000200 183 __u32 ictl; /* 0x0048 */ 184 #define ECA_CEI 0x80000000 185 #define ECA_IB 0x40000000 186 #define ECA_SIGPI 0x10000000 187 #define ECA_MVPGI 0x01000000 188 #define ECA_AIV 0x00200000 189 #define ECA_VX 0x00020000 190 #define ECA_PROTEXCI 0x00002000 191 #define ECA_APIE 0x00000008 192 #define ECA_SII 0x00000001 193 __u32 eca; /* 0x004c */ 194 #define ICPT_INST 0x04 195 #define ICPT_PROGI 0x08 196 #define ICPT_INSTPROGI 0x0C 197 #define ICPT_EXTREQ 0x10 198 #define ICPT_EXTINT 0x14 199 #define ICPT_IOREQ 0x18 200 #define ICPT_WAIT 0x1c 201 #define ICPT_VALIDITY 0x20 202 #define ICPT_STOP 0x28 203 #define ICPT_OPEREXC 0x2C 204 #define ICPT_PARTEXEC 0x38 205 #define ICPT_IOINST 0x40 206 #define ICPT_KSS 0x5c 207 __u8 icptcode; /* 0x0050 */ 208 __u8 icptstatus; /* 0x0051 */ 209 __u16 ihcpu; /* 0x0052 */ 210 __u8 reserved54[2]; /* 0x0054 */ 211 __u16 ipa; /* 0x0056 */ 212 __u32 ipb; /* 0x0058 */ 213 __u32 scaoh; /* 0x005c */ 214 #define FPF_BPBC 0x20 215 __u8 fpf; /* 0x0060 */ 216 #define ECB_GS 0x40 217 #define ECB_TE 0x10 218 #define ECB_SRSI 0x04 219 #define ECB_HOSTPROTINT 0x02 220 __u8 ecb; /* 0x0061 */ 221 #define ECB2_CMMA 0x80 222 #define ECB2_IEP 0x20 223 #define ECB2_PFMFI 0x08 224 #define ECB2_ESCA 0x04 225 __u8 ecb2; /* 0x0062 */ 226 #define ECB3_DEA 0x08 227 #define ECB3_AES 0x04 228 #define ECB3_RI 0x01 229 __u8 ecb3; /* 0x0063 */ 230 __u32 scaol; /* 0x0064 */ 231 __u8 reserved68; /* 0x0068 */ 232 __u8 epdx; /* 0x0069 */ 233 __u8 reserved6a[2]; /* 0x006a */ 234 __u32 todpr; /* 0x006c */ 235 #define GISA_FORMAT1 0x00000001 236 __u32 gd; /* 0x0070 */ 237 __u8 reserved74[12]; /* 0x0074 */ 238 __u64 mso; /* 0x0080 */ 239 __u64 msl; /* 0x0088 */ 240 psw_t gpsw; /* 0x0090 */ 241 __u64 gg14; /* 0x00a0 */ 242 __u64 gg15; /* 0x00a8 */ 243 __u8 reservedb0[8]; /* 0x00b0 */ 244 #define HPID_KVM 0x4 245 #define HPID_VSIE 0x5 246 __u8 hpid; /* 0x00b8 */ 247 __u8 reservedb9[11]; /* 0x00b9 */ 248 __u16 extcpuaddr; /* 0x00c4 */ 249 __u16 eic; /* 0x00c6 */ 250 __u32 reservedc8; /* 0x00c8 */ 251 __u16 pgmilc; /* 0x00cc */ 252 __u16 iprcc; /* 0x00ce */ 253 __u32 dxc; /* 0x00d0 */ 254 __u16 mcn; /* 0x00d4 */ 255 __u8 perc; /* 0x00d6 */ 256 __u8 peratmid; /* 0x00d7 */ 257 __u64 peraddr; /* 0x00d8 */ 258 __u8 eai; /* 0x00e0 */ 259 __u8 peraid; /* 0x00e1 */ 260 __u8 oai; /* 0x00e2 */ 261 __u8 armid; /* 0x00e3 */ 262 __u8 reservede4[4]; /* 0x00e4 */ 263 __u64 tecmc; /* 0x00e8 */ 264 __u8 reservedf0[12]; /* 0x00f0 */ 265 #define CRYCB_FORMAT_MASK 0x00000003 266 #define CRYCB_FORMAT0 0x00000000 267 #define CRYCB_FORMAT1 0x00000001 268 #define CRYCB_FORMAT2 0x00000003 269 __u32 crycbd; /* 0x00fc */ 270 __u64 gcr[16]; /* 0x0100 */ 271 __u64 gbea; /* 0x0180 */ 272 __u8 reserved188[8]; /* 0x0188 */ 273 __u64 sdnxo; /* 0x0190 */ 274 __u8 reserved198[8]; /* 0x0198 */ 275 __u32 fac; /* 0x01a0 */ 276 __u8 reserved1a4[20]; /* 0x01a4 */ 277 __u64 cbrlo; /* 0x01b8 */ 278 __u8 reserved1c0[8]; /* 0x01c0 */ 279 #define ECD_HOSTREGMGMT 0x20000000 280 #define ECD_MEF 0x08000000 281 #define ECD_ETOKENF 0x02000000 282 #define ECD_ECC 0x00200000 283 __u32 ecd; /* 0x01c8 */ 284 __u8 reserved1cc[18]; /* 0x01cc */ 285 __u64 pp; /* 0x01de */ 286 __u8 reserved1e6[2]; /* 0x01e6 */ 287 __u64 itdba; /* 0x01e8 */ 288 __u64 riccbd; /* 0x01f0 */ 289 __u64 gvrd; /* 0x01f8 */ 290 } __attribute__((packed)); 291 292 struct kvm_s390_itdb { 293 __u8 data[256]; 294 }; 295 296 struct sie_page { 297 struct kvm_s390_sie_block sie_block; 298 struct mcck_volatile_info mcck_info; /* 0x0200 */ 299 __u8 reserved218[1000]; /* 0x0218 */ 300 struct kvm_s390_itdb itdb; /* 0x0600 */ 301 __u8 reserved700[2304]; /* 0x0700 */ 302 }; 303 304 struct kvm_vcpu_stat { 305 u64 exit_userspace; 306 u64 exit_null; 307 u64 exit_external_request; 308 u64 exit_io_request; 309 u64 exit_external_interrupt; 310 u64 exit_stop_request; 311 u64 exit_validity; 312 u64 exit_instruction; 313 u64 exit_pei; 314 u64 halt_successful_poll; 315 u64 halt_attempted_poll; 316 u64 halt_poll_invalid; 317 u64 halt_no_poll_steal; 318 u64 halt_wakeup; 319 u64 instruction_lctl; 320 u64 instruction_lctlg; 321 u64 instruction_stctl; 322 u64 instruction_stctg; 323 u64 exit_program_interruption; 324 u64 exit_instr_and_program; 325 u64 exit_operation_exception; 326 u64 deliver_ckc; 327 u64 deliver_cputm; 328 u64 deliver_external_call; 329 u64 deliver_emergency_signal; 330 u64 deliver_service_signal; 331 u64 deliver_virtio; 332 u64 deliver_stop_signal; 333 u64 deliver_prefix_signal; 334 u64 deliver_restart_signal; 335 u64 deliver_program; 336 u64 deliver_io; 337 u64 deliver_machine_check; 338 u64 exit_wait_state; 339 u64 inject_ckc; 340 u64 inject_cputm; 341 u64 inject_external_call; 342 u64 inject_emergency_signal; 343 u64 inject_mchk; 344 u64 inject_pfault_init; 345 u64 inject_program; 346 u64 inject_restart; 347 u64 inject_set_prefix; 348 u64 inject_stop_signal; 349 u64 instruction_epsw; 350 u64 instruction_gs; 351 u64 instruction_io_other; 352 u64 instruction_lpsw; 353 u64 instruction_lpswe; 354 u64 instruction_pfmf; 355 u64 instruction_ptff; 356 u64 instruction_sck; 357 u64 instruction_sckpf; 358 u64 instruction_stidp; 359 u64 instruction_spx; 360 u64 instruction_stpx; 361 u64 instruction_stap; 362 u64 instruction_iske; 363 u64 instruction_ri; 364 u64 instruction_rrbe; 365 u64 instruction_sske; 366 u64 instruction_ipte_interlock; 367 u64 instruction_stsi; 368 u64 instruction_stfl; 369 u64 instruction_tb; 370 u64 instruction_tpi; 371 u64 instruction_tprot; 372 u64 instruction_tsch; 373 u64 instruction_sie; 374 u64 instruction_essa; 375 u64 instruction_sthyi; 376 u64 instruction_sigp_sense; 377 u64 instruction_sigp_sense_running; 378 u64 instruction_sigp_external_call; 379 u64 instruction_sigp_emergency; 380 u64 instruction_sigp_cond_emergency; 381 u64 instruction_sigp_start; 382 u64 instruction_sigp_stop; 383 u64 instruction_sigp_stop_store_status; 384 u64 instruction_sigp_store_status; 385 u64 instruction_sigp_store_adtl_status; 386 u64 instruction_sigp_arch; 387 u64 instruction_sigp_prefix; 388 u64 instruction_sigp_restart; 389 u64 instruction_sigp_init_cpu_reset; 390 u64 instruction_sigp_cpu_reset; 391 u64 instruction_sigp_unknown; 392 u64 diagnose_10; 393 u64 diagnose_44; 394 u64 diagnose_9c; 395 u64 diagnose_9c_ignored; 396 u64 diagnose_258; 397 u64 diagnose_308; 398 u64 diagnose_500; 399 u64 diagnose_other; 400 }; 401 402 #define PGM_OPERATION 0x01 403 #define PGM_PRIVILEGED_OP 0x02 404 #define PGM_EXECUTE 0x03 405 #define PGM_PROTECTION 0x04 406 #define PGM_ADDRESSING 0x05 407 #define PGM_SPECIFICATION 0x06 408 #define PGM_DATA 0x07 409 #define PGM_FIXED_POINT_OVERFLOW 0x08 410 #define PGM_FIXED_POINT_DIVIDE 0x09 411 #define PGM_DECIMAL_OVERFLOW 0x0a 412 #define PGM_DECIMAL_DIVIDE 0x0b 413 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c 414 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d 415 #define PGM_HFP_SIGNIFICANCE 0x0e 416 #define PGM_HFP_DIVIDE 0x0f 417 #define PGM_SEGMENT_TRANSLATION 0x10 418 #define PGM_PAGE_TRANSLATION 0x11 419 #define PGM_TRANSLATION_SPEC 0x12 420 #define PGM_SPECIAL_OPERATION 0x13 421 #define PGM_OPERAND 0x15 422 #define PGM_TRACE_TABEL 0x16 423 #define PGM_VECTOR_PROCESSING 0x1b 424 #define PGM_SPACE_SWITCH 0x1c 425 #define PGM_HFP_SQUARE_ROOT 0x1d 426 #define PGM_PC_TRANSLATION_SPEC 0x1f 427 #define PGM_AFX_TRANSLATION 0x20 428 #define PGM_ASX_TRANSLATION 0x21 429 #define PGM_LX_TRANSLATION 0x22 430 #define PGM_EX_TRANSLATION 0x23 431 #define PGM_PRIMARY_AUTHORITY 0x24 432 #define PGM_SECONDARY_AUTHORITY 0x25 433 #define PGM_LFX_TRANSLATION 0x26 434 #define PGM_LSX_TRANSLATION 0x27 435 #define PGM_ALET_SPECIFICATION 0x28 436 #define PGM_ALEN_TRANSLATION 0x29 437 #define PGM_ALE_SEQUENCE 0x2a 438 #define PGM_ASTE_VALIDITY 0x2b 439 #define PGM_ASTE_SEQUENCE 0x2c 440 #define PGM_EXTENDED_AUTHORITY 0x2d 441 #define PGM_LSTE_SEQUENCE 0x2e 442 #define PGM_ASTE_INSTANCE 0x2f 443 #define PGM_STACK_FULL 0x30 444 #define PGM_STACK_EMPTY 0x31 445 #define PGM_STACK_SPECIFICATION 0x32 446 #define PGM_STACK_TYPE 0x33 447 #define PGM_STACK_OPERATION 0x34 448 #define PGM_ASCE_TYPE 0x38 449 #define PGM_REGION_FIRST_TRANS 0x39 450 #define PGM_REGION_SECOND_TRANS 0x3a 451 #define PGM_REGION_THIRD_TRANS 0x3b 452 #define PGM_MONITOR 0x40 453 #define PGM_PER 0x80 454 #define PGM_CRYPTO_OPERATION 0x119 455 456 /* irq types in ascend order of priorities */ 457 enum irq_types { 458 IRQ_PEND_SET_PREFIX = 0, 459 IRQ_PEND_RESTART, 460 IRQ_PEND_SIGP_STOP, 461 IRQ_PEND_IO_ISC_7, 462 IRQ_PEND_IO_ISC_6, 463 IRQ_PEND_IO_ISC_5, 464 IRQ_PEND_IO_ISC_4, 465 IRQ_PEND_IO_ISC_3, 466 IRQ_PEND_IO_ISC_2, 467 IRQ_PEND_IO_ISC_1, 468 IRQ_PEND_IO_ISC_0, 469 IRQ_PEND_VIRTIO, 470 IRQ_PEND_PFAULT_DONE, 471 IRQ_PEND_PFAULT_INIT, 472 IRQ_PEND_EXT_HOST, 473 IRQ_PEND_EXT_SERVICE, 474 IRQ_PEND_EXT_TIMING, 475 IRQ_PEND_EXT_CPU_TIMER, 476 IRQ_PEND_EXT_CLOCK_COMP, 477 IRQ_PEND_EXT_EXTERNAL, 478 IRQ_PEND_EXT_EMERGENCY, 479 IRQ_PEND_EXT_MALFUNC, 480 IRQ_PEND_EXT_IRQ_KEY, 481 IRQ_PEND_MCHK_REP, 482 IRQ_PEND_PROG, 483 IRQ_PEND_SVC, 484 IRQ_PEND_MCHK_EX, 485 IRQ_PEND_COUNT 486 }; 487 488 /* We have 2M for virtio device descriptor pages. Smallest amount of 489 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 490 */ 491 #define KVM_S390_MAX_VIRTIO_IRQS 87381 492 493 /* 494 * Repressible (non-floating) machine check interrupts 495 * subclass bits in MCIC 496 */ 497 #define MCHK_EXTD_BIT 58 498 #define MCHK_DEGR_BIT 56 499 #define MCHK_WARN_BIT 55 500 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ 501 (1UL << MCHK_EXTD_BIT) | \ 502 (1UL << MCHK_WARN_BIT)) 503 504 /* Exigent machine check interrupts subclass bits in MCIC */ 505 #define MCHK_SD_BIT 63 506 #define MCHK_PD_BIT 62 507 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) 508 509 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ 510 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ 511 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ 512 (1UL << IRQ_PEND_EXT_MALFUNC) | \ 513 (1UL << IRQ_PEND_EXT_EMERGENCY) | \ 514 (1UL << IRQ_PEND_EXT_EXTERNAL) | \ 515 (1UL << IRQ_PEND_EXT_TIMING) | \ 516 (1UL << IRQ_PEND_EXT_HOST) | \ 517 (1UL << IRQ_PEND_EXT_SERVICE) | \ 518 (1UL << IRQ_PEND_VIRTIO) | \ 519 (1UL << IRQ_PEND_PFAULT_INIT) | \ 520 (1UL << IRQ_PEND_PFAULT_DONE)) 521 522 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ 523 (1UL << IRQ_PEND_IO_ISC_1) | \ 524 (1UL << IRQ_PEND_IO_ISC_2) | \ 525 (1UL << IRQ_PEND_IO_ISC_3) | \ 526 (1UL << IRQ_PEND_IO_ISC_4) | \ 527 (1UL << IRQ_PEND_IO_ISC_5) | \ 528 (1UL << IRQ_PEND_IO_ISC_6) | \ 529 (1UL << IRQ_PEND_IO_ISC_7)) 530 531 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ 532 (1UL << IRQ_PEND_MCHK_EX)) 533 534 struct kvm_s390_interrupt_info { 535 struct list_head list; 536 u64 type; 537 union { 538 struct kvm_s390_io_info io; 539 struct kvm_s390_ext_info ext; 540 struct kvm_s390_pgm_info pgm; 541 struct kvm_s390_emerg_info emerg; 542 struct kvm_s390_extcall_info extcall; 543 struct kvm_s390_prefix_info prefix; 544 struct kvm_s390_stop_info stop; 545 struct kvm_s390_mchk_info mchk; 546 }; 547 }; 548 549 struct kvm_s390_irq_payload { 550 struct kvm_s390_io_info io; 551 struct kvm_s390_ext_info ext; 552 struct kvm_s390_pgm_info pgm; 553 struct kvm_s390_emerg_info emerg; 554 struct kvm_s390_extcall_info extcall; 555 struct kvm_s390_prefix_info prefix; 556 struct kvm_s390_stop_info stop; 557 struct kvm_s390_mchk_info mchk; 558 }; 559 560 struct kvm_s390_local_interrupt { 561 spinlock_t lock; 562 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); 563 struct kvm_s390_irq_payload irq; 564 unsigned long pending_irqs; 565 }; 566 567 #define FIRQ_LIST_IO_ISC_0 0 568 #define FIRQ_LIST_IO_ISC_1 1 569 #define FIRQ_LIST_IO_ISC_2 2 570 #define FIRQ_LIST_IO_ISC_3 3 571 #define FIRQ_LIST_IO_ISC_4 4 572 #define FIRQ_LIST_IO_ISC_5 5 573 #define FIRQ_LIST_IO_ISC_6 6 574 #define FIRQ_LIST_IO_ISC_7 7 575 #define FIRQ_LIST_PFAULT 8 576 #define FIRQ_LIST_VIRTIO 9 577 #define FIRQ_LIST_COUNT 10 578 #define FIRQ_CNTR_IO 0 579 #define FIRQ_CNTR_SERVICE 1 580 #define FIRQ_CNTR_VIRTIO 2 581 #define FIRQ_CNTR_PFAULT 3 582 #define FIRQ_MAX_COUNT 4 583 584 /* mask the AIS mode for a given ISC */ 585 #define AIS_MODE_MASK(isc) (0x80 >> isc) 586 587 #define KVM_S390_AIS_MODE_ALL 0 588 #define KVM_S390_AIS_MODE_SINGLE 1 589 590 struct kvm_s390_float_interrupt { 591 unsigned long pending_irqs; 592 spinlock_t lock; 593 struct list_head lists[FIRQ_LIST_COUNT]; 594 int counters[FIRQ_MAX_COUNT]; 595 struct kvm_s390_mchk_info mchk; 596 struct kvm_s390_ext_info srv_signal; 597 int next_rr_cpu; 598 struct mutex ais_lock; 599 u8 simm; 600 u8 nimm; 601 }; 602 603 struct kvm_hw_wp_info_arch { 604 unsigned long addr; 605 unsigned long phys_addr; 606 int len; 607 char *old_data; 608 }; 609 610 struct kvm_hw_bp_info_arch { 611 unsigned long addr; 612 int len; 613 }; 614 615 /* 616 * Only the upper 16 bits of kvm_guest_debug->control are arch specific. 617 * Further KVM_GUESTDBG flags which an be used from userspace can be found in 618 * arch/s390/include/uapi/asm/kvm.h 619 */ 620 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 621 622 #define guestdbg_enabled(vcpu) \ 623 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) 624 #define guestdbg_sstep_enabled(vcpu) \ 625 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) 626 #define guestdbg_hw_bp_enabled(vcpu) \ 627 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) 628 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ 629 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) 630 631 struct kvm_guestdbg_info_arch { 632 unsigned long cr0; 633 unsigned long cr9; 634 unsigned long cr10; 635 unsigned long cr11; 636 struct kvm_hw_bp_info_arch *hw_bp_info; 637 struct kvm_hw_wp_info_arch *hw_wp_info; 638 int nr_hw_bp; 639 int nr_hw_wp; 640 unsigned long last_bp; 641 }; 642 643 struct kvm_vcpu_arch { 644 struct kvm_s390_sie_block *sie_block; 645 /* if vsie is active, currently executed shadow sie control block */ 646 struct kvm_s390_sie_block *vsie_block; 647 unsigned int host_acrs[NUM_ACRS]; 648 struct gs_cb *host_gscb; 649 struct fpu host_fpregs; 650 struct kvm_s390_local_interrupt local_int; 651 struct hrtimer ckc_timer; 652 struct kvm_s390_pgm_info pgm; 653 struct gmap *gmap; 654 /* backup location for the currently enabled gmap when scheduled out */ 655 struct gmap *enabled_gmap; 656 struct kvm_guestdbg_info_arch guestdbg; 657 unsigned long pfault_token; 658 unsigned long pfault_select; 659 unsigned long pfault_compare; 660 bool cputm_enabled; 661 /* 662 * The seqcount protects updates to cputm_start and sie_block.cputm, 663 * this way we can have non-blocking reads with consistent values. 664 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these 665 * values and to start/stop/enable/disable cpu timer accounting. 666 */ 667 seqcount_t cputm_seqcount; 668 __u64 cputm_start; 669 bool gs_enabled; 670 bool skey_enabled; 671 }; 672 673 struct kvm_vm_stat { 674 u64 inject_io; 675 u64 inject_float_mchk; 676 u64 inject_pfault_done; 677 u64 inject_service_signal; 678 u64 inject_virtio; 679 u64 remote_tlb_flush; 680 }; 681 682 struct kvm_arch_memory_slot { 683 }; 684 685 struct s390_map_info { 686 struct list_head list; 687 __u64 guest_addr; 688 __u64 addr; 689 struct page *page; 690 }; 691 692 struct s390_io_adapter { 693 unsigned int id; 694 int isc; 695 bool maskable; 696 bool masked; 697 bool swap; 698 bool suppressible; 699 struct rw_semaphore maps_lock; 700 struct list_head maps; 701 atomic_t nr_maps; 702 }; 703 704 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) 705 #define MAX_S390_ADAPTER_MAPS 256 706 707 /* maximum size of facilities and facility mask is 2k bytes */ 708 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) 709 #define S390_ARCH_FAC_LIST_SIZE_U64 \ 710 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) 711 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE 712 #define S390_ARCH_FAC_MASK_SIZE_U64 \ 713 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) 714 715 struct kvm_s390_cpu_model { 716 /* facility mask supported by kvm & hosting machine */ 717 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64]; 718 struct kvm_s390_vm_cpu_subfunc subfuncs; 719 /* facility list requested by guest (in dma page) */ 720 __u64 *fac_list; 721 u64 cpuid; 722 unsigned short ibc; 723 }; 724 725 struct kvm_s390_module_hook { 726 int (*hook)(struct kvm_vcpu *vcpu); 727 struct module *owner; 728 }; 729 730 struct kvm_s390_crypto { 731 struct kvm_s390_crypto_cb *crycb; 732 struct kvm_s390_module_hook *pqap_hook; 733 __u32 crycbd; 734 __u8 aes_kw; 735 __u8 dea_kw; 736 __u8 apie; 737 }; 738 739 #define APCB0_MASK_SIZE 1 740 struct kvm_s390_apcb0 { 741 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */ 742 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */ 743 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */ 744 __u64 reserved18; /* 0x0018 */ 745 }; 746 747 #define APCB1_MASK_SIZE 4 748 struct kvm_s390_apcb1 { 749 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */ 750 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */ 751 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */ 752 __u64 reserved60[4]; /* 0x0060 */ 753 }; 754 755 struct kvm_s390_crypto_cb { 756 struct kvm_s390_apcb0 apcb0; /* 0x0000 */ 757 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */ 758 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ 759 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ 760 struct kvm_s390_apcb1 apcb1; /* 0x0080 */ 761 }; 762 763 struct kvm_s390_gisa { 764 union { 765 struct { /* common to all formats */ 766 u32 next_alert; 767 u8 ipm; 768 u8 reserved01[2]; 769 u8 iam; 770 }; 771 struct { /* format 0 */ 772 u32 next_alert; 773 u8 ipm; 774 u8 reserved01; 775 u8 : 6; 776 u8 g : 1; 777 u8 c : 1; 778 u8 iam; 779 u8 reserved02[4]; 780 u32 airq_count; 781 } g0; 782 struct { /* format 1 */ 783 u32 next_alert; 784 u8 ipm; 785 u8 simm; 786 u8 nimm; 787 u8 iam; 788 u8 aism[8]; 789 u8 : 6; 790 u8 g : 1; 791 u8 c : 1; 792 u8 reserved03[11]; 793 u32 airq_count; 794 } g1; 795 struct { 796 u64 word[4]; 797 } u64; 798 }; 799 }; 800 801 struct kvm_s390_gib { 802 u32 alert_list_origin; 803 u32 reserved01; 804 u8:5; 805 u8 nisc:3; 806 u8 reserved03[3]; 807 u32 reserved04[5]; 808 }; 809 810 /* 811 * sie_page2 has to be allocated as DMA because fac_list, crycb and 812 * gisa need 31bit addresses in the sie control block. 813 */ 814 struct sie_page2 { 815 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ 816 struct kvm_s390_crypto_cb crycb; /* 0x0800 */ 817 struct kvm_s390_gisa gisa; /* 0x0900 */ 818 struct kvm *kvm; /* 0x0920 */ 819 u8 reserved928[0x1000 - 0x928]; /* 0x0928 */ 820 }; 821 822 struct kvm_s390_vsie { 823 struct mutex mutex; 824 struct radix_tree_root addr_to_page; 825 int page_count; 826 int next; 827 struct page *pages[KVM_MAX_VCPUS]; 828 }; 829 830 struct kvm_s390_gisa_iam { 831 u8 mask; 832 spinlock_t ref_lock; 833 u32 ref_count[MAX_ISC + 1]; 834 }; 835 836 struct kvm_s390_gisa_interrupt { 837 struct kvm_s390_gisa *origin; 838 struct kvm_s390_gisa_iam alert; 839 struct hrtimer timer; 840 u64 expires; 841 DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS); 842 }; 843 844 struct kvm_arch{ 845 void *sca; 846 int use_esca; 847 rwlock_t sca_lock; 848 debug_info_t *dbf; 849 struct kvm_s390_float_interrupt float_int; 850 struct kvm_device *flic; 851 struct gmap *gmap; 852 unsigned long mem_limit; 853 int css_support; 854 int use_irqchip; 855 int use_cmma; 856 int use_pfmfi; 857 int use_skf; 858 int user_cpu_state_ctrl; 859 int user_sigp; 860 int user_stsi; 861 int user_instr0; 862 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; 863 wait_queue_head_t ipte_wq; 864 int ipte_lock_count; 865 struct mutex ipte_mutex; 866 spinlock_t start_stop_lock; 867 struct sie_page2 *sie_page2; 868 struct kvm_s390_cpu_model model; 869 struct kvm_s390_crypto crypto; 870 struct kvm_s390_vsie vsie; 871 u8 epdx; 872 u64 epoch; 873 int migration_mode; 874 atomic64_t cmma_dirty_pages; 875 /* subset of available cpu features enabled by user space */ 876 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); 877 DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS); 878 struct kvm_s390_gisa_interrupt gisa_int; 879 }; 880 881 #define KVM_HVA_ERR_BAD (-1UL) 882 #define KVM_HVA_ERR_RO_BAD (-2UL) 883 884 static inline bool kvm_is_error_hva(unsigned long addr) 885 { 886 return IS_ERR_VALUE(addr); 887 } 888 889 #define ASYNC_PF_PER_VCPU 64 890 struct kvm_arch_async_pf { 891 unsigned long pfault_token; 892 }; 893 894 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); 895 896 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, 897 struct kvm_async_pf *work); 898 899 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 900 struct kvm_async_pf *work); 901 902 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, 903 struct kvm_async_pf *work); 904 905 void kvm_arch_crypto_clear_masks(struct kvm *kvm); 906 void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm, 907 unsigned long *aqm, unsigned long *adm); 908 909 extern int sie64a(struct kvm_s390_sie_block *, u64 *); 910 extern char sie_exit; 911 912 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc); 913 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc); 914 915 static inline void kvm_arch_hardware_disable(void) {} 916 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 917 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} 918 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 919 static inline void kvm_arch_free_memslot(struct kvm *kvm, 920 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} 921 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 922 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 923 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 924 struct kvm_memory_slot *slot) {} 925 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 926 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 927 928 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu); 929 930 #endif 931