1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 /* 4 * This file contains definitions from Hyper-V Hypervisor Top-Level Functional 5 * Specification (TLFS): 6 * https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs 7 */ 8 9 #ifndef _ASM_GENERIC_HYPERV_TLFS_H 10 #define _ASM_GENERIC_HYPERV_TLFS_H 11 12 #include <linux/types.h> 13 #include <linux/bits.h> 14 #include <linux/time64.h> 15 16 /* 17 * While not explicitly listed in the TLFS, Hyper-V always runs with a page size 18 * of 4096. These definitions are used when communicating with Hyper-V using 19 * guest physical pages and guest physical page addresses, since the guest page 20 * size may not be 4096 on all architectures. 21 */ 22 #define HV_HYP_PAGE_SHIFT 12 23 #define HV_HYP_PAGE_SIZE BIT(HV_HYP_PAGE_SHIFT) 24 #define HV_HYP_PAGE_MASK (~(HV_HYP_PAGE_SIZE - 1)) 25 26 /* 27 * Hyper-V provides two categories of flags relevant to guest VMs. The 28 * "Features" category indicates specific functionality that is available 29 * to guests on this particular instance of Hyper-V. The "Features" 30 * are presented in four groups, each of which is 32 bits. The group A 31 * and B definitions are common across architectures and are listed here. 32 * However, not all flags are relevant on all architectures. 33 * 34 * Groups C and D vary across architectures and are listed in the 35 * architecture specific portion of hyperv-tlfs.h. Some of these flags exist 36 * on multiple architectures, but the bit positions are different so they 37 * cannot appear in the generic portion of hyperv-tlfs.h. 38 * 39 * The "Enlightenments" category provides recommendations on whether to use 40 * specific enlightenments that are available. The Enlighenments are a single 41 * group of 32 bits, but they vary across architectures and are listed in 42 * the architecture specific portion of hyperv-tlfs.h. 43 */ 44 45 /* 46 * Group A Features. 47 */ 48 49 /* VP Runtime register available */ 50 #define HV_MSR_VP_RUNTIME_AVAILABLE BIT(0) 51 /* Partition Reference Counter available*/ 52 #define HV_MSR_TIME_REF_COUNT_AVAILABLE BIT(1) 53 /* Basic SynIC register available */ 54 #define HV_MSR_SYNIC_AVAILABLE BIT(2) 55 /* Synthetic Timer registers available */ 56 #define HV_MSR_SYNTIMER_AVAILABLE BIT(3) 57 /* Virtual APIC assist and VP assist page registers available */ 58 #define HV_MSR_APIC_ACCESS_AVAILABLE BIT(4) 59 /* Hypercall and Guest OS ID registers available*/ 60 #define HV_MSR_HYPERCALL_AVAILABLE BIT(5) 61 /* Access virtual processor index register available*/ 62 #define HV_MSR_VP_INDEX_AVAILABLE BIT(6) 63 /* Virtual system reset register available*/ 64 #define HV_MSR_RESET_AVAILABLE BIT(7) 65 /* Access statistics page registers available */ 66 #define HV_MSR_STAT_PAGES_AVAILABLE BIT(8) 67 /* Partition reference TSC register is available */ 68 #define HV_MSR_REFERENCE_TSC_AVAILABLE BIT(9) 69 /* Partition Guest IDLE register is available */ 70 #define HV_MSR_GUEST_IDLE_AVAILABLE BIT(10) 71 /* Partition local APIC and TSC frequency registers available */ 72 #define HV_ACCESS_FREQUENCY_MSRS BIT(11) 73 /* AccessReenlightenmentControls privilege */ 74 #define HV_ACCESS_REENLIGHTENMENT BIT(13) 75 /* AccessTscInvariantControls privilege */ 76 #define HV_ACCESS_TSC_INVARIANT BIT(15) 77 78 /* 79 * Group B features. 80 */ 81 #define HV_CREATE_PARTITIONS BIT(0) 82 #define HV_ACCESS_PARTITION_ID BIT(1) 83 #define HV_ACCESS_MEMORY_POOL BIT(2) 84 #define HV_ADJUST_MESSAGE_BUFFERS BIT(3) 85 #define HV_POST_MESSAGES BIT(4) 86 #define HV_SIGNAL_EVENTS BIT(5) 87 #define HV_CREATE_PORT BIT(6) 88 #define HV_CONNECT_PORT BIT(7) 89 #define HV_ACCESS_STATS BIT(8) 90 #define HV_DEBUGGING BIT(11) 91 #define HV_CPU_MANAGEMENT BIT(12) 92 #define HV_ENABLE_EXTENDED_HYPERCALLS BIT(20) 93 #define HV_ISOLATION BIT(22) 94 95 /* 96 * TSC page layout. 97 */ 98 struct ms_hyperv_tsc_page { 99 volatile u32 tsc_sequence; 100 u32 reserved1; 101 volatile u64 tsc_scale; 102 volatile s64 tsc_offset; 103 } __packed; 104 105 union hv_reference_tsc_msr { 106 u64 as_uint64; 107 struct { 108 u64 enable:1; 109 u64 reserved:11; 110 u64 pfn:52; 111 } __packed; 112 }; 113 114 /* 115 * The guest OS needs to register the guest ID with the hypervisor. 116 * The guest ID is a 64 bit entity and the structure of this ID is 117 * specified in the Hyper-V specification: 118 * 119 * msdn.microsoft.com/en-us/library/windows/hardware/ff542653%28v=vs.85%29.aspx 120 * 121 * While the current guideline does not specify how Linux guest ID(s) 122 * need to be generated, our plan is to publish the guidelines for 123 * Linux and other guest operating systems that currently are hosted 124 * on Hyper-V. The implementation here conforms to this yet 125 * unpublished guidelines. 126 * 127 * 128 * Bit(s) 129 * 63 - Indicates if the OS is Open Source or not; 1 is Open Source 130 * 62:56 - Os Type; Linux is 0x100 131 * 55:48 - Distro specific identification 132 * 47:16 - Linux kernel version number 133 * 15:0 - Distro specific identification 134 * 135 * 136 */ 137 138 #define HV_LINUX_VENDOR_ID 0x8100 139 140 /* 141 * Crash notification flags. 142 */ 143 #define HV_CRASH_CTL_CRASH_NOTIFY_MSG BIT_ULL(62) 144 #define HV_CRASH_CTL_CRASH_NOTIFY BIT_ULL(63) 145 146 /* Declare the various hypercall operations. */ 147 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE 0x0002 148 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003 149 #define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008 150 #define HVCALL_SEND_IPI 0x000b 151 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013 152 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX 0x0014 153 #define HVCALL_SEND_IPI_EX 0x0015 154 #define HVCALL_GET_PARTITION_ID 0x0046 155 #define HVCALL_DEPOSIT_MEMORY 0x0048 156 #define HVCALL_CREATE_VP 0x004e 157 #define HVCALL_GET_VP_REGISTERS 0x0050 158 #define HVCALL_SET_VP_REGISTERS 0x0051 159 #define HVCALL_POST_MESSAGE 0x005c 160 #define HVCALL_SIGNAL_EVENT 0x005d 161 #define HVCALL_POST_DEBUG_DATA 0x0069 162 #define HVCALL_RETRIEVE_DEBUG_DATA 0x006a 163 #define HVCALL_RESET_DEBUG_SESSION 0x006b 164 #define HVCALL_ADD_LOGICAL_PROCESSOR 0x0076 165 #define HVCALL_MAP_DEVICE_INTERRUPT 0x007c 166 #define HVCALL_UNMAP_DEVICE_INTERRUPT 0x007d 167 #define HVCALL_RETARGET_INTERRUPT 0x007e 168 #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af 169 #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0 170 #define HVCALL_MODIFY_SPARSE_GPA_PAGE_HOST_VISIBILITY 0x00db 171 172 /* Extended hypercalls */ 173 #define HV_EXT_CALL_QUERY_CAPABILITIES 0x8001 174 #define HV_EXT_CALL_MEMORY_HEAT_HINT 0x8003 175 176 #define HV_FLUSH_ALL_PROCESSORS BIT(0) 177 #define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) 178 #define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) 179 #define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3) 180 181 /* Extended capability bits */ 182 #define HV_EXT_CAPABILITY_MEMORY_COLD_DISCARD_HINT BIT(8) 183 184 enum HV_GENERIC_SET_FORMAT { 185 HV_GENERIC_SET_SPARSE_4K, 186 HV_GENERIC_SET_ALL, 187 }; 188 189 #define HV_PARTITION_ID_SELF ((u64)-1) 190 #define HV_VP_INDEX_SELF ((u32)-2) 191 192 #define HV_HYPERCALL_RESULT_MASK GENMASK_ULL(15, 0) 193 #define HV_HYPERCALL_FAST_BIT BIT(16) 194 #define HV_HYPERCALL_VARHEAD_OFFSET 17 195 #define HV_HYPERCALL_VARHEAD_MASK GENMASK_ULL(26, 17) 196 #define HV_HYPERCALL_RSVD0_MASK GENMASK_ULL(31, 27) 197 #define HV_HYPERCALL_REP_COMP_OFFSET 32 198 #define HV_HYPERCALL_REP_COMP_1 BIT_ULL(32) 199 #define HV_HYPERCALL_REP_COMP_MASK GENMASK_ULL(43, 32) 200 #define HV_HYPERCALL_RSVD1_MASK GENMASK_ULL(47, 44) 201 #define HV_HYPERCALL_REP_START_OFFSET 48 202 #define HV_HYPERCALL_REP_START_MASK GENMASK_ULL(59, 48) 203 #define HV_HYPERCALL_RSVD2_MASK GENMASK_ULL(63, 60) 204 #define HV_HYPERCALL_RSVD_MASK (HV_HYPERCALL_RSVD0_MASK | \ 205 HV_HYPERCALL_RSVD1_MASK | \ 206 HV_HYPERCALL_RSVD2_MASK) 207 208 /* hypercall status code */ 209 #define HV_STATUS_SUCCESS 0 210 #define HV_STATUS_INVALID_HYPERCALL_CODE 2 211 #define HV_STATUS_INVALID_HYPERCALL_INPUT 3 212 #define HV_STATUS_INVALID_ALIGNMENT 4 213 #define HV_STATUS_INVALID_PARAMETER 5 214 #define HV_STATUS_ACCESS_DENIED 6 215 #define HV_STATUS_OPERATION_DENIED 8 216 #define HV_STATUS_INSUFFICIENT_MEMORY 11 217 #define HV_STATUS_INVALID_PORT_ID 17 218 #define HV_STATUS_INVALID_CONNECTION_ID 18 219 #define HV_STATUS_INSUFFICIENT_BUFFERS 19 220 221 /* 222 * The Hyper-V TimeRefCount register and the TSC 223 * page provide a guest VM clock with 100ns tick rate 224 */ 225 #define HV_CLOCK_HZ (NSEC_PER_SEC/100) 226 227 /* Define the number of synthetic interrupt sources. */ 228 #define HV_SYNIC_SINT_COUNT (16) 229 /* Define the expected SynIC version. */ 230 #define HV_SYNIC_VERSION_1 (0x1) 231 /* Valid SynIC vectors are 16-255. */ 232 #define HV_SYNIC_FIRST_VALID_VECTOR (16) 233 234 #define HV_SYNIC_CONTROL_ENABLE (1ULL << 0) 235 #define HV_SYNIC_SIMP_ENABLE (1ULL << 0) 236 #define HV_SYNIC_SIEFP_ENABLE (1ULL << 0) 237 #define HV_SYNIC_SINT_MASKED (1ULL << 16) 238 #define HV_SYNIC_SINT_AUTO_EOI (1ULL << 17) 239 #define HV_SYNIC_SINT_VECTOR_MASK (0xFF) 240 241 #define HV_SYNIC_STIMER_COUNT (4) 242 243 /* Define synthetic interrupt controller message constants. */ 244 #define HV_MESSAGE_SIZE (256) 245 #define HV_MESSAGE_PAYLOAD_BYTE_COUNT (240) 246 #define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30) 247 248 /* 249 * Define hypervisor message types. Some of the message types 250 * are x86/x64 specific, but there's no good way to separate 251 * them out into the arch-specific version of hyperv-tlfs.h 252 * because C doesn't provide a way to extend enum types. 253 * Keeping them all in the arch neutral hyperv-tlfs.h seems 254 * the least messy compromise. 255 */ 256 enum hv_message_type { 257 HVMSG_NONE = 0x00000000, 258 259 /* Memory access messages. */ 260 HVMSG_UNMAPPED_GPA = 0x80000000, 261 HVMSG_GPA_INTERCEPT = 0x80000001, 262 263 /* Timer notification messages. */ 264 HVMSG_TIMER_EXPIRED = 0x80000010, 265 266 /* Error messages. */ 267 HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020, 268 HVMSG_UNRECOVERABLE_EXCEPTION = 0x80000021, 269 HVMSG_UNSUPPORTED_FEATURE = 0x80000022, 270 271 /* Trace buffer complete messages. */ 272 HVMSG_EVENTLOG_BUFFERCOMPLETE = 0x80000040, 273 274 /* Platform-specific processor intercept messages. */ 275 HVMSG_X64_IOPORT_INTERCEPT = 0x80010000, 276 HVMSG_X64_MSR_INTERCEPT = 0x80010001, 277 HVMSG_X64_CPUID_INTERCEPT = 0x80010002, 278 HVMSG_X64_EXCEPTION_INTERCEPT = 0x80010003, 279 HVMSG_X64_APIC_EOI = 0x80010004, 280 HVMSG_X64_LEGACY_FP_ERROR = 0x80010005 281 }; 282 283 /* Define synthetic interrupt controller message flags. */ 284 union hv_message_flags { 285 __u8 asu8; 286 struct { 287 __u8 msg_pending:1; 288 __u8 reserved:7; 289 } __packed; 290 }; 291 292 /* Define port identifier type. */ 293 union hv_port_id { 294 __u32 asu32; 295 struct { 296 __u32 id:24; 297 __u32 reserved:8; 298 } __packed u; 299 }; 300 301 /* Define synthetic interrupt controller message header. */ 302 struct hv_message_header { 303 __u32 message_type; 304 __u8 payload_size; 305 union hv_message_flags message_flags; 306 __u8 reserved[2]; 307 union { 308 __u64 sender; 309 union hv_port_id port; 310 }; 311 } __packed; 312 313 /* Define synthetic interrupt controller message format. */ 314 struct hv_message { 315 struct hv_message_header header; 316 union { 317 __u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT]; 318 } u; 319 } __packed; 320 321 /* Define the synthetic interrupt message page layout. */ 322 struct hv_message_page { 323 struct hv_message sint_message[HV_SYNIC_SINT_COUNT]; 324 } __packed; 325 326 /* Define timer message payload structure. */ 327 struct hv_timer_message_payload { 328 __u32 timer_index; 329 __u32 reserved; 330 __u64 expiration_time; /* When the timer expired */ 331 __u64 delivery_time; /* When the message was delivered */ 332 } __packed; 333 334 335 /* Define synthetic interrupt controller flag constants. */ 336 #define HV_EVENT_FLAGS_COUNT (256 * 8) 337 #define HV_EVENT_FLAGS_LONG_COUNT (256 / sizeof(unsigned long)) 338 339 /* 340 * Synthetic timer configuration. 341 */ 342 union hv_stimer_config { 343 u64 as_uint64; 344 struct { 345 u64 enable:1; 346 u64 periodic:1; 347 u64 lazy:1; 348 u64 auto_enable:1; 349 u64 apic_vector:8; 350 u64 direct_mode:1; 351 u64 reserved_z0:3; 352 u64 sintx:4; 353 u64 reserved_z1:44; 354 } __packed; 355 }; 356 357 358 /* Define the synthetic interrupt controller event flags format. */ 359 union hv_synic_event_flags { 360 unsigned long flags[HV_EVENT_FLAGS_LONG_COUNT]; 361 }; 362 363 /* Define SynIC control register. */ 364 union hv_synic_scontrol { 365 u64 as_uint64; 366 struct { 367 u64 enable:1; 368 u64 reserved:63; 369 } __packed; 370 }; 371 372 /* Define synthetic interrupt source. */ 373 union hv_synic_sint { 374 u64 as_uint64; 375 struct { 376 u64 vector:8; 377 u64 reserved1:8; 378 u64 masked:1; 379 u64 auto_eoi:1; 380 u64 polling:1; 381 u64 reserved2:45; 382 } __packed; 383 }; 384 385 /* Define the format of the SIMP register */ 386 union hv_synic_simp { 387 u64 as_uint64; 388 struct { 389 u64 simp_enabled:1; 390 u64 preserved:11; 391 u64 base_simp_gpa:52; 392 } __packed; 393 }; 394 395 /* Define the format of the SIEFP register */ 396 union hv_synic_siefp { 397 u64 as_uint64; 398 struct { 399 u64 siefp_enabled:1; 400 u64 preserved:11; 401 u64 base_siefp_gpa:52; 402 } __packed; 403 }; 404 405 struct hv_vpset { 406 u64 format; 407 u64 valid_bank_mask; 408 u64 bank_contents[]; 409 } __packed; 410 411 /* HvCallSendSyntheticClusterIpi hypercall */ 412 struct hv_send_ipi { 413 u32 vector; 414 u32 reserved; 415 u64 cpu_mask; 416 } __packed; 417 418 /* HvCallSendSyntheticClusterIpiEx hypercall */ 419 struct hv_send_ipi_ex { 420 u32 vector; 421 u32 reserved; 422 struct hv_vpset vp_set; 423 } __packed; 424 425 /* HvFlushGuestPhysicalAddressSpace hypercalls */ 426 struct hv_guest_mapping_flush { 427 u64 address_space; 428 u64 flags; 429 } __packed; 430 431 /* 432 * HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited 433 * by the bitwidth of "additional_pages" in union hv_gpa_page_range. 434 */ 435 #define HV_MAX_FLUSH_PAGES (2048) 436 #define HV_GPA_PAGE_RANGE_PAGE_SIZE_2MB 0 437 #define HV_GPA_PAGE_RANGE_PAGE_SIZE_1GB 1 438 439 /* HvFlushGuestPhysicalAddressList, HvExtCallMemoryHeatHint hypercall */ 440 union hv_gpa_page_range { 441 u64 address_space; 442 struct { 443 u64 additional_pages:11; 444 u64 largepage:1; 445 u64 basepfn:52; 446 } page; 447 struct { 448 u64 reserved:12; 449 u64 page_size:1; 450 u64 reserved1:8; 451 u64 base_large_pfn:43; 452 }; 453 }; 454 455 /* 456 * All input flush parameters should be in single page. The max flush 457 * count is equal with how many entries of union hv_gpa_page_range can 458 * be populated into the input parameter page. 459 */ 460 #define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) / \ 461 sizeof(union hv_gpa_page_range)) 462 463 struct hv_guest_mapping_flush_list { 464 u64 address_space; 465 u64 flags; 466 union hv_gpa_page_range gpa_list[HV_MAX_FLUSH_REP_COUNT]; 467 }; 468 469 /* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */ 470 struct hv_tlb_flush { 471 u64 address_space; 472 u64 flags; 473 u64 processor_mask; 474 u64 gva_list[]; 475 } __packed; 476 477 /* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */ 478 struct hv_tlb_flush_ex { 479 u64 address_space; 480 u64 flags; 481 struct hv_vpset hv_vp_set; 482 u64 gva_list[]; 483 } __packed; 484 485 /* HvGetPartitionId hypercall (output only) */ 486 struct hv_get_partition_id { 487 u64 partition_id; 488 } __packed; 489 490 /* HvDepositMemory hypercall */ 491 struct hv_deposit_memory { 492 u64 partition_id; 493 u64 gpa_page_list[]; 494 } __packed; 495 496 struct hv_proximity_domain_flags { 497 u32 proximity_preferred : 1; 498 u32 reserved : 30; 499 u32 proximity_info_valid : 1; 500 } __packed; 501 502 /* Not a union in windows but useful for zeroing */ 503 union hv_proximity_domain_info { 504 struct { 505 u32 domain_id; 506 struct hv_proximity_domain_flags flags; 507 }; 508 u64 as_uint64; 509 } __packed; 510 511 struct hv_lp_startup_status { 512 u64 hv_status; 513 u64 substatus1; 514 u64 substatus2; 515 u64 substatus3; 516 u64 substatus4; 517 u64 substatus5; 518 u64 substatus6; 519 } __packed; 520 521 /* HvAddLogicalProcessor hypercall */ 522 struct hv_add_logical_processor_in { 523 u32 lp_index; 524 u32 apic_id; 525 union hv_proximity_domain_info proximity_domain_info; 526 u64 flags; 527 } __packed; 528 529 struct hv_add_logical_processor_out { 530 struct hv_lp_startup_status startup_status; 531 } __packed; 532 533 enum HV_SUBNODE_TYPE 534 { 535 HvSubnodeAny = 0, 536 HvSubnodeSocket = 1, 537 HvSubnodeAmdNode = 2, 538 HvSubnodeL3 = 3, 539 HvSubnodeCount = 4, 540 HvSubnodeInvalid = -1 541 }; 542 543 /* HvCreateVp hypercall */ 544 struct hv_create_vp { 545 u64 partition_id; 546 u32 vp_index; 547 u8 padding[3]; 548 u8 subnode_type; 549 u64 subnode_id; 550 union hv_proximity_domain_info proximity_domain_info; 551 u64 flags; 552 } __packed; 553 554 enum hv_interrupt_source { 555 HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */ 556 HV_INTERRUPT_SOURCE_IOAPIC, 557 }; 558 559 union hv_ioapic_rte { 560 u64 as_uint64; 561 562 struct { 563 u32 vector:8; 564 u32 delivery_mode:3; 565 u32 destination_mode:1; 566 u32 delivery_status:1; 567 u32 interrupt_polarity:1; 568 u32 remote_irr:1; 569 u32 trigger_mode:1; 570 u32 interrupt_mask:1; 571 u32 reserved1:15; 572 573 u32 reserved2:24; 574 u32 destination_id:8; 575 }; 576 577 struct { 578 u32 low_uint32; 579 u32 high_uint32; 580 }; 581 } __packed; 582 583 struct hv_interrupt_entry { 584 u32 source; 585 u32 reserved1; 586 union { 587 union hv_msi_entry msi_entry; 588 union hv_ioapic_rte ioapic_rte; 589 }; 590 } __packed; 591 592 /* 593 * flags for hv_device_interrupt_target.flags 594 */ 595 #define HV_DEVICE_INTERRUPT_TARGET_MULTICAST 1 596 #define HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET 2 597 598 struct hv_device_interrupt_target { 599 u32 vector; 600 u32 flags; 601 union { 602 u64 vp_mask; 603 struct hv_vpset vp_set; 604 }; 605 } __packed; 606 607 struct hv_retarget_device_interrupt { 608 u64 partition_id; /* use "self" */ 609 u64 device_id; 610 struct hv_interrupt_entry int_entry; 611 u64 reserved2; 612 struct hv_device_interrupt_target int_target; 613 } __packed __aligned(8); 614 615 616 /* HvGetVpRegisters hypercall input with variable size reg name list*/ 617 struct hv_get_vp_registers_input { 618 struct { 619 u64 partitionid; 620 u32 vpindex; 621 u8 inputvtl; 622 u8 padding[3]; 623 } header; 624 struct input { 625 u32 name0; 626 u32 name1; 627 } element[]; 628 } __packed; 629 630 631 /* HvGetVpRegisters returns an array of these output elements */ 632 struct hv_get_vp_registers_output { 633 union { 634 struct { 635 u32 a; 636 u32 b; 637 u32 c; 638 u32 d; 639 } as32 __packed; 640 struct { 641 u64 low; 642 u64 high; 643 } as64 __packed; 644 }; 645 }; 646 647 /* HvSetVpRegisters hypercall with variable size reg name/value list*/ 648 struct hv_set_vp_registers_input { 649 struct { 650 u64 partitionid; 651 u32 vpindex; 652 u8 inputvtl; 653 u8 padding[3]; 654 } header; 655 struct { 656 u32 name; 657 u32 padding1; 658 u64 padding2; 659 u64 valuelow; 660 u64 valuehigh; 661 } element[]; 662 } __packed; 663 664 enum hv_device_type { 665 HV_DEVICE_TYPE_LOGICAL = 0, 666 HV_DEVICE_TYPE_PCI = 1, 667 HV_DEVICE_TYPE_IOAPIC = 2, 668 HV_DEVICE_TYPE_ACPI = 3, 669 }; 670 671 typedef u16 hv_pci_rid; 672 typedef u16 hv_pci_segment; 673 typedef u64 hv_logical_device_id; 674 union hv_pci_bdf { 675 u16 as_uint16; 676 677 struct { 678 u8 function:3; 679 u8 device:5; 680 u8 bus; 681 }; 682 } __packed; 683 684 union hv_pci_bus_range { 685 u16 as_uint16; 686 687 struct { 688 u8 subordinate_bus; 689 u8 secondary_bus; 690 }; 691 } __packed; 692 693 union hv_device_id { 694 u64 as_uint64; 695 696 struct { 697 u64 reserved0:62; 698 u64 device_type:2; 699 }; 700 701 /* HV_DEVICE_TYPE_LOGICAL */ 702 struct { 703 u64 id:62; 704 u64 device_type:2; 705 } logical; 706 707 /* HV_DEVICE_TYPE_PCI */ 708 struct { 709 union { 710 hv_pci_rid rid; 711 union hv_pci_bdf bdf; 712 }; 713 714 hv_pci_segment segment; 715 union hv_pci_bus_range shadow_bus_range; 716 717 u16 phantom_function_bits:2; 718 u16 source_shadow:1; 719 720 u16 rsvdz0:11; 721 u16 device_type:2; 722 } pci; 723 724 /* HV_DEVICE_TYPE_IOAPIC */ 725 struct { 726 u8 ioapic_id; 727 u8 rsvdz0; 728 u16 rsvdz1; 729 u16 rsvdz2; 730 731 u16 rsvdz3:14; 732 u16 device_type:2; 733 } ioapic; 734 735 /* HV_DEVICE_TYPE_ACPI */ 736 struct { 737 u32 input_mapping_base; 738 u32 input_mapping_count:30; 739 u32 device_type:2; 740 } acpi; 741 } __packed; 742 743 enum hv_interrupt_trigger_mode { 744 HV_INTERRUPT_TRIGGER_MODE_EDGE = 0, 745 HV_INTERRUPT_TRIGGER_MODE_LEVEL = 1, 746 }; 747 748 struct hv_device_interrupt_descriptor { 749 u32 interrupt_type; 750 u32 trigger_mode; 751 u32 vector_count; 752 u32 reserved; 753 struct hv_device_interrupt_target target; 754 } __packed; 755 756 struct hv_input_map_device_interrupt { 757 u64 partition_id; 758 u64 device_id; 759 u64 flags; 760 struct hv_interrupt_entry logical_interrupt_entry; 761 struct hv_device_interrupt_descriptor interrupt_descriptor; 762 } __packed; 763 764 struct hv_output_map_device_interrupt { 765 struct hv_interrupt_entry interrupt_entry; 766 } __packed; 767 768 struct hv_input_unmap_device_interrupt { 769 u64 partition_id; 770 u64 device_id; 771 struct hv_interrupt_entry interrupt_entry; 772 } __packed; 773 774 #define HV_SOURCE_SHADOW_NONE 0x0 775 #define HV_SOURCE_SHADOW_BRIDGE_BUS_RANGE 0x1 776 777 /* 778 * The whole argument should fit in a page to be able to pass to the hypervisor 779 * in one hypercall. 780 */ 781 #define HV_MEMORY_HINT_MAX_GPA_PAGE_RANGES \ 782 ((HV_HYP_PAGE_SIZE - sizeof(struct hv_memory_hint)) / \ 783 sizeof(union hv_gpa_page_range)) 784 785 /* HvExtCallMemoryHeatHint hypercall */ 786 #define HV_EXT_MEMORY_HEAT_HINT_TYPE_COLD_DISCARD 2 787 struct hv_memory_hint { 788 u64 type:2; 789 u64 reserved:62; 790 union hv_gpa_page_range ranges[]; 791 } __packed; 792 793 #endif 794