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_ISOLATION BIT(22) 93 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 /* 106 * The guest OS needs to register the guest ID with the hypervisor. 107 * The guest ID is a 64 bit entity and the structure of this ID is 108 * specified in the Hyper-V specification: 109 * 110 * msdn.microsoft.com/en-us/library/windows/hardware/ff542653%28v=vs.85%29.aspx 111 * 112 * While the current guideline does not specify how Linux guest ID(s) 113 * need to be generated, our plan is to publish the guidelines for 114 * Linux and other guest operating systems that currently are hosted 115 * on Hyper-V. The implementation here conforms to this yet 116 * unpublished guidelines. 117 * 118 * 119 * Bit(s) 120 * 63 - Indicates if the OS is Open Source or not; 1 is Open Source 121 * 62:56 - Os Type; Linux is 0x100 122 * 55:48 - Distro specific identification 123 * 47:16 - Linux kernel version number 124 * 15:0 - Distro specific identification 125 * 126 * 127 */ 128 129 #define HV_LINUX_VENDOR_ID 0x8100 130 131 /* 132 * Crash notification flags. 133 */ 134 #define HV_CRASH_CTL_CRASH_NOTIFY_MSG BIT_ULL(62) 135 #define HV_CRASH_CTL_CRASH_NOTIFY BIT_ULL(63) 136 137 /* Declare the various hypercall operations. */ 138 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE 0x0002 139 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003 140 #define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008 141 #define HVCALL_SEND_IPI 0x000b 142 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013 143 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX 0x0014 144 #define HVCALL_SEND_IPI_EX 0x0015 145 #define HVCALL_GET_PARTITION_ID 0x0046 146 #define HVCALL_DEPOSIT_MEMORY 0x0048 147 #define HVCALL_CREATE_VP 0x004e 148 #define HVCALL_GET_VP_REGISTERS 0x0050 149 #define HVCALL_SET_VP_REGISTERS 0x0051 150 #define HVCALL_POST_MESSAGE 0x005c 151 #define HVCALL_SIGNAL_EVENT 0x005d 152 #define HVCALL_POST_DEBUG_DATA 0x0069 153 #define HVCALL_RETRIEVE_DEBUG_DATA 0x006a 154 #define HVCALL_RESET_DEBUG_SESSION 0x006b 155 #define HVCALL_ADD_LOGICAL_PROCESSOR 0x0076 156 #define HVCALL_MAP_DEVICE_INTERRUPT 0x007c 157 #define HVCALL_UNMAP_DEVICE_INTERRUPT 0x007d 158 #define HVCALL_RETARGET_INTERRUPT 0x007e 159 #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af 160 #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0 161 162 #define HV_FLUSH_ALL_PROCESSORS BIT(0) 163 #define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) 164 #define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) 165 #define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3) 166 167 enum HV_GENERIC_SET_FORMAT { 168 HV_GENERIC_SET_SPARSE_4K, 169 HV_GENERIC_SET_ALL, 170 }; 171 172 #define HV_PARTITION_ID_SELF ((u64)-1) 173 #define HV_VP_INDEX_SELF ((u32)-2) 174 175 #define HV_HYPERCALL_RESULT_MASK GENMASK_ULL(15, 0) 176 #define HV_HYPERCALL_FAST_BIT BIT(16) 177 #define HV_HYPERCALL_VARHEAD_OFFSET 17 178 #define HV_HYPERCALL_REP_COMP_OFFSET 32 179 #define HV_HYPERCALL_REP_COMP_1 BIT_ULL(32) 180 #define HV_HYPERCALL_REP_COMP_MASK GENMASK_ULL(43, 32) 181 #define HV_HYPERCALL_REP_START_OFFSET 48 182 #define HV_HYPERCALL_REP_START_MASK GENMASK_ULL(59, 48) 183 184 /* hypercall status code */ 185 #define HV_STATUS_SUCCESS 0 186 #define HV_STATUS_INVALID_HYPERCALL_CODE 2 187 #define HV_STATUS_INVALID_HYPERCALL_INPUT 3 188 #define HV_STATUS_INVALID_ALIGNMENT 4 189 #define HV_STATUS_INVALID_PARAMETER 5 190 #define HV_STATUS_OPERATION_DENIED 8 191 #define HV_STATUS_INSUFFICIENT_MEMORY 11 192 #define HV_STATUS_INVALID_PORT_ID 17 193 #define HV_STATUS_INVALID_CONNECTION_ID 18 194 #define HV_STATUS_INSUFFICIENT_BUFFERS 19 195 196 /* 197 * The Hyper-V TimeRefCount register and the TSC 198 * page provide a guest VM clock with 100ns tick rate 199 */ 200 #define HV_CLOCK_HZ (NSEC_PER_SEC/100) 201 202 /* Define the number of synthetic interrupt sources. */ 203 #define HV_SYNIC_SINT_COUNT (16) 204 /* Define the expected SynIC version. */ 205 #define HV_SYNIC_VERSION_1 (0x1) 206 /* Valid SynIC vectors are 16-255. */ 207 #define HV_SYNIC_FIRST_VALID_VECTOR (16) 208 209 #define HV_SYNIC_CONTROL_ENABLE (1ULL << 0) 210 #define HV_SYNIC_SIMP_ENABLE (1ULL << 0) 211 #define HV_SYNIC_SIEFP_ENABLE (1ULL << 0) 212 #define HV_SYNIC_SINT_MASKED (1ULL << 16) 213 #define HV_SYNIC_SINT_AUTO_EOI (1ULL << 17) 214 #define HV_SYNIC_SINT_VECTOR_MASK (0xFF) 215 216 #define HV_SYNIC_STIMER_COUNT (4) 217 218 /* Define synthetic interrupt controller message constants. */ 219 #define HV_MESSAGE_SIZE (256) 220 #define HV_MESSAGE_PAYLOAD_BYTE_COUNT (240) 221 #define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30) 222 223 /* Define synthetic interrupt controller message flags. */ 224 union hv_message_flags { 225 __u8 asu8; 226 struct { 227 __u8 msg_pending:1; 228 __u8 reserved:7; 229 } __packed; 230 }; 231 232 /* Define port identifier type. */ 233 union hv_port_id { 234 __u32 asu32; 235 struct { 236 __u32 id:24; 237 __u32 reserved:8; 238 } __packed u; 239 }; 240 241 /* Define synthetic interrupt controller message header. */ 242 struct hv_message_header { 243 __u32 message_type; 244 __u8 payload_size; 245 union hv_message_flags message_flags; 246 __u8 reserved[2]; 247 union { 248 __u64 sender; 249 union hv_port_id port; 250 }; 251 } __packed; 252 253 /* Define synthetic interrupt controller message format. */ 254 struct hv_message { 255 struct hv_message_header header; 256 union { 257 __u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT]; 258 } u; 259 } __packed; 260 261 /* Define the synthetic interrupt message page layout. */ 262 struct hv_message_page { 263 struct hv_message sint_message[HV_SYNIC_SINT_COUNT]; 264 } __packed; 265 266 /* Define timer message payload structure. */ 267 struct hv_timer_message_payload { 268 __u32 timer_index; 269 __u32 reserved; 270 __u64 expiration_time; /* When the timer expired */ 271 __u64 delivery_time; /* When the message was delivered */ 272 } __packed; 273 274 275 /* Define synthetic interrupt controller flag constants. */ 276 #define HV_EVENT_FLAGS_COUNT (256 * 8) 277 #define HV_EVENT_FLAGS_LONG_COUNT (256 / sizeof(unsigned long)) 278 279 /* 280 * Synthetic timer configuration. 281 */ 282 union hv_stimer_config { 283 u64 as_uint64; 284 struct { 285 u64 enable:1; 286 u64 periodic:1; 287 u64 lazy:1; 288 u64 auto_enable:1; 289 u64 apic_vector:8; 290 u64 direct_mode:1; 291 u64 reserved_z0:3; 292 u64 sintx:4; 293 u64 reserved_z1:44; 294 } __packed; 295 }; 296 297 298 /* Define the synthetic interrupt controller event flags format. */ 299 union hv_synic_event_flags { 300 unsigned long flags[HV_EVENT_FLAGS_LONG_COUNT]; 301 }; 302 303 /* Define SynIC control register. */ 304 union hv_synic_scontrol { 305 u64 as_uint64; 306 struct { 307 u64 enable:1; 308 u64 reserved:63; 309 } __packed; 310 }; 311 312 /* Define synthetic interrupt source. */ 313 union hv_synic_sint { 314 u64 as_uint64; 315 struct { 316 u64 vector:8; 317 u64 reserved1:8; 318 u64 masked:1; 319 u64 auto_eoi:1; 320 u64 polling:1; 321 u64 reserved2:45; 322 } __packed; 323 }; 324 325 /* Define the format of the SIMP register */ 326 union hv_synic_simp { 327 u64 as_uint64; 328 struct { 329 u64 simp_enabled:1; 330 u64 preserved:11; 331 u64 base_simp_gpa:52; 332 } __packed; 333 }; 334 335 /* Define the format of the SIEFP register */ 336 union hv_synic_siefp { 337 u64 as_uint64; 338 struct { 339 u64 siefp_enabled:1; 340 u64 preserved:11; 341 u64 base_siefp_gpa:52; 342 } __packed; 343 }; 344 345 struct hv_vpset { 346 u64 format; 347 u64 valid_bank_mask; 348 u64 bank_contents[]; 349 } __packed; 350 351 /* HvCallSendSyntheticClusterIpi hypercall */ 352 struct hv_send_ipi { 353 u32 vector; 354 u32 reserved; 355 u64 cpu_mask; 356 } __packed; 357 358 /* HvCallSendSyntheticClusterIpiEx hypercall */ 359 struct hv_send_ipi_ex { 360 u32 vector; 361 u32 reserved; 362 struct hv_vpset vp_set; 363 } __packed; 364 365 /* HvFlushGuestPhysicalAddressSpace hypercalls */ 366 struct hv_guest_mapping_flush { 367 u64 address_space; 368 u64 flags; 369 } __packed; 370 371 /* 372 * HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited 373 * by the bitwidth of "additional_pages" in union hv_gpa_page_range. 374 */ 375 #define HV_MAX_FLUSH_PAGES (2048) 376 377 /* HvFlushGuestPhysicalAddressList hypercall */ 378 union hv_gpa_page_range { 379 u64 address_space; 380 struct { 381 u64 additional_pages:11; 382 u64 largepage:1; 383 u64 basepfn:52; 384 } page; 385 }; 386 387 /* 388 * All input flush parameters should be in single page. The max flush 389 * count is equal with how many entries of union hv_gpa_page_range can 390 * be populated into the input parameter page. 391 */ 392 #define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) / \ 393 sizeof(union hv_gpa_page_range)) 394 395 struct hv_guest_mapping_flush_list { 396 u64 address_space; 397 u64 flags; 398 union hv_gpa_page_range gpa_list[HV_MAX_FLUSH_REP_COUNT]; 399 }; 400 401 /* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */ 402 struct hv_tlb_flush { 403 u64 address_space; 404 u64 flags; 405 u64 processor_mask; 406 u64 gva_list[]; 407 } __packed; 408 409 /* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */ 410 struct hv_tlb_flush_ex { 411 u64 address_space; 412 u64 flags; 413 struct hv_vpset hv_vp_set; 414 u64 gva_list[]; 415 } __packed; 416 417 /* HvGetPartitionId hypercall (output only) */ 418 struct hv_get_partition_id { 419 u64 partition_id; 420 } __packed; 421 422 /* HvDepositMemory hypercall */ 423 struct hv_deposit_memory { 424 u64 partition_id; 425 u64 gpa_page_list[]; 426 } __packed; 427 428 struct hv_proximity_domain_flags { 429 u32 proximity_preferred : 1; 430 u32 reserved : 30; 431 u32 proximity_info_valid : 1; 432 } __packed; 433 434 /* Not a union in windows but useful for zeroing */ 435 union hv_proximity_domain_info { 436 struct { 437 u32 domain_id; 438 struct hv_proximity_domain_flags flags; 439 }; 440 u64 as_uint64; 441 } __packed; 442 443 struct hv_lp_startup_status { 444 u64 hv_status; 445 u64 substatus1; 446 u64 substatus2; 447 u64 substatus3; 448 u64 substatus4; 449 u64 substatus5; 450 u64 substatus6; 451 } __packed; 452 453 /* HvAddLogicalProcessor hypercall */ 454 struct hv_add_logical_processor_in { 455 u32 lp_index; 456 u32 apic_id; 457 union hv_proximity_domain_info proximity_domain_info; 458 u64 flags; 459 } __packed; 460 461 struct hv_add_logical_processor_out { 462 struct hv_lp_startup_status startup_status; 463 } __packed; 464 465 enum HV_SUBNODE_TYPE 466 { 467 HvSubnodeAny = 0, 468 HvSubnodeSocket = 1, 469 HvSubnodeAmdNode = 2, 470 HvSubnodeL3 = 3, 471 HvSubnodeCount = 4, 472 HvSubnodeInvalid = -1 473 }; 474 475 /* HvCreateVp hypercall */ 476 struct hv_create_vp { 477 u64 partition_id; 478 u32 vp_index; 479 u8 padding[3]; 480 u8 subnode_type; 481 u64 subnode_id; 482 union hv_proximity_domain_info proximity_domain_info; 483 u64 flags; 484 } __packed; 485 486 enum hv_interrupt_source { 487 HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */ 488 HV_INTERRUPT_SOURCE_IOAPIC, 489 }; 490 491 union hv_msi_address_register { 492 u32 as_uint32; 493 struct { 494 u32 reserved1:2; 495 u32 destination_mode:1; 496 u32 redirection_hint:1; 497 u32 reserved2:8; 498 u32 destination_id:8; 499 u32 msi_base:12; 500 }; 501 } __packed; 502 503 union hv_msi_data_register { 504 u32 as_uint32; 505 struct { 506 u32 vector:8; 507 u32 delivery_mode:3; 508 u32 reserved1:3; 509 u32 level_assert:1; 510 u32 trigger_mode:1; 511 u32 reserved2:16; 512 }; 513 } __packed; 514 515 /* HvRetargetDeviceInterrupt hypercall */ 516 union hv_msi_entry { 517 u64 as_uint64; 518 struct { 519 union hv_msi_address_register address; 520 union hv_msi_data_register data; 521 } __packed; 522 }; 523 524 union hv_ioapic_rte { 525 u64 as_uint64; 526 527 struct { 528 u32 vector:8; 529 u32 delivery_mode:3; 530 u32 destination_mode:1; 531 u32 delivery_status:1; 532 u32 interrupt_polarity:1; 533 u32 remote_irr:1; 534 u32 trigger_mode:1; 535 u32 interrupt_mask:1; 536 u32 reserved1:15; 537 538 u32 reserved2:24; 539 u32 destination_id:8; 540 }; 541 542 struct { 543 u32 low_uint32; 544 u32 high_uint32; 545 }; 546 } __packed; 547 548 struct hv_interrupt_entry { 549 u32 source; 550 u32 reserved1; 551 union { 552 union hv_msi_entry msi_entry; 553 union hv_ioapic_rte ioapic_rte; 554 }; 555 } __packed; 556 557 /* 558 * flags for hv_device_interrupt_target.flags 559 */ 560 #define HV_DEVICE_INTERRUPT_TARGET_MULTICAST 1 561 #define HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET 2 562 563 struct hv_device_interrupt_target { 564 u32 vector; 565 u32 flags; 566 union { 567 u64 vp_mask; 568 struct hv_vpset vp_set; 569 }; 570 } __packed; 571 572 struct hv_retarget_device_interrupt { 573 u64 partition_id; /* use "self" */ 574 u64 device_id; 575 struct hv_interrupt_entry int_entry; 576 u64 reserved2; 577 struct hv_device_interrupt_target int_target; 578 } __packed __aligned(8); 579 580 581 /* HvGetVpRegisters hypercall input with variable size reg name list*/ 582 struct hv_get_vp_registers_input { 583 struct { 584 u64 partitionid; 585 u32 vpindex; 586 u8 inputvtl; 587 u8 padding[3]; 588 } header; 589 struct input { 590 u32 name0; 591 u32 name1; 592 } element[]; 593 } __packed; 594 595 596 /* HvGetVpRegisters returns an array of these output elements */ 597 struct hv_get_vp_registers_output { 598 union { 599 struct { 600 u32 a; 601 u32 b; 602 u32 c; 603 u32 d; 604 } as32 __packed; 605 struct { 606 u64 low; 607 u64 high; 608 } as64 __packed; 609 }; 610 }; 611 612 /* HvSetVpRegisters hypercall with variable size reg name/value list*/ 613 struct hv_set_vp_registers_input { 614 struct { 615 u64 partitionid; 616 u32 vpindex; 617 u8 inputvtl; 618 u8 padding[3]; 619 } header; 620 struct { 621 u32 name; 622 u32 padding1; 623 u64 padding2; 624 u64 valuelow; 625 u64 valuehigh; 626 } element[]; 627 } __packed; 628 629 enum hv_device_type { 630 HV_DEVICE_TYPE_LOGICAL = 0, 631 HV_DEVICE_TYPE_PCI = 1, 632 HV_DEVICE_TYPE_IOAPIC = 2, 633 HV_DEVICE_TYPE_ACPI = 3, 634 }; 635 636 typedef u16 hv_pci_rid; 637 typedef u16 hv_pci_segment; 638 typedef u64 hv_logical_device_id; 639 union hv_pci_bdf { 640 u16 as_uint16; 641 642 struct { 643 u8 function:3; 644 u8 device:5; 645 u8 bus; 646 }; 647 } __packed; 648 649 union hv_pci_bus_range { 650 u16 as_uint16; 651 652 struct { 653 u8 subordinate_bus; 654 u8 secondary_bus; 655 }; 656 } __packed; 657 658 union hv_device_id { 659 u64 as_uint64; 660 661 struct { 662 u64 reserved0:62; 663 u64 device_type:2; 664 }; 665 666 /* HV_DEVICE_TYPE_LOGICAL */ 667 struct { 668 u64 id:62; 669 u64 device_type:2; 670 } logical; 671 672 /* HV_DEVICE_TYPE_PCI */ 673 struct { 674 union { 675 hv_pci_rid rid; 676 union hv_pci_bdf bdf; 677 }; 678 679 hv_pci_segment segment; 680 union hv_pci_bus_range shadow_bus_range; 681 682 u16 phantom_function_bits:2; 683 u16 source_shadow:1; 684 685 u16 rsvdz0:11; 686 u16 device_type:2; 687 } pci; 688 689 /* HV_DEVICE_TYPE_IOAPIC */ 690 struct { 691 u8 ioapic_id; 692 u8 rsvdz0; 693 u16 rsvdz1; 694 u16 rsvdz2; 695 696 u16 rsvdz3:14; 697 u16 device_type:2; 698 } ioapic; 699 700 /* HV_DEVICE_TYPE_ACPI */ 701 struct { 702 u32 input_mapping_base; 703 u32 input_mapping_count:30; 704 u32 device_type:2; 705 } acpi; 706 } __packed; 707 708 enum hv_interrupt_trigger_mode { 709 HV_INTERRUPT_TRIGGER_MODE_EDGE = 0, 710 HV_INTERRUPT_TRIGGER_MODE_LEVEL = 1, 711 }; 712 713 struct hv_device_interrupt_descriptor { 714 u32 interrupt_type; 715 u32 trigger_mode; 716 u32 vector_count; 717 u32 reserved; 718 struct hv_device_interrupt_target target; 719 } __packed; 720 721 struct hv_input_map_device_interrupt { 722 u64 partition_id; 723 u64 device_id; 724 u64 flags; 725 struct hv_interrupt_entry logical_interrupt_entry; 726 struct hv_device_interrupt_descriptor interrupt_descriptor; 727 } __packed; 728 729 struct hv_output_map_device_interrupt { 730 struct hv_interrupt_entry interrupt_entry; 731 } __packed; 732 733 struct hv_input_unmap_device_interrupt { 734 u64 partition_id; 735 u64 device_id; 736 struct hv_interrupt_entry interrupt_entry; 737 } __packed; 738 739 #define HV_SOURCE_SHADOW_NONE 0x0 740 #define HV_SOURCE_SHADOW_BRIDGE_BUS_RANGE 0x1 741 742 #endif 743