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 /* 224 * Define hypervisor message types. Some of the message types 225 * are x86/x64 specific, but there's no good way to separate 226 * them out into the arch-specific version of hyperv-tlfs.h 227 * because C doesn't provide a way to extend enum types. 228 * Keeping them all in the arch neutral hyperv-tlfs.h seems 229 * the least messy compromise. 230 */ 231 enum hv_message_type { 232 HVMSG_NONE = 0x00000000, 233 234 /* Memory access messages. */ 235 HVMSG_UNMAPPED_GPA = 0x80000000, 236 HVMSG_GPA_INTERCEPT = 0x80000001, 237 238 /* Timer notification messages. */ 239 HVMSG_TIMER_EXPIRED = 0x80000010, 240 241 /* Error messages. */ 242 HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020, 243 HVMSG_UNRECOVERABLE_EXCEPTION = 0x80000021, 244 HVMSG_UNSUPPORTED_FEATURE = 0x80000022, 245 246 /* Trace buffer complete messages. */ 247 HVMSG_EVENTLOG_BUFFERCOMPLETE = 0x80000040, 248 249 /* Platform-specific processor intercept messages. */ 250 HVMSG_X64_IOPORT_INTERCEPT = 0x80010000, 251 HVMSG_X64_MSR_INTERCEPT = 0x80010001, 252 HVMSG_X64_CPUID_INTERCEPT = 0x80010002, 253 HVMSG_X64_EXCEPTION_INTERCEPT = 0x80010003, 254 HVMSG_X64_APIC_EOI = 0x80010004, 255 HVMSG_X64_LEGACY_FP_ERROR = 0x80010005 256 }; 257 258 /* Define synthetic interrupt controller message flags. */ 259 union hv_message_flags { 260 __u8 asu8; 261 struct { 262 __u8 msg_pending:1; 263 __u8 reserved:7; 264 } __packed; 265 }; 266 267 /* Define port identifier type. */ 268 union hv_port_id { 269 __u32 asu32; 270 struct { 271 __u32 id:24; 272 __u32 reserved:8; 273 } __packed u; 274 }; 275 276 /* Define synthetic interrupt controller message header. */ 277 struct hv_message_header { 278 __u32 message_type; 279 __u8 payload_size; 280 union hv_message_flags message_flags; 281 __u8 reserved[2]; 282 union { 283 __u64 sender; 284 union hv_port_id port; 285 }; 286 } __packed; 287 288 /* Define synthetic interrupt controller message format. */ 289 struct hv_message { 290 struct hv_message_header header; 291 union { 292 __u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT]; 293 } u; 294 } __packed; 295 296 /* Define the synthetic interrupt message page layout. */ 297 struct hv_message_page { 298 struct hv_message sint_message[HV_SYNIC_SINT_COUNT]; 299 } __packed; 300 301 /* Define timer message payload structure. */ 302 struct hv_timer_message_payload { 303 __u32 timer_index; 304 __u32 reserved; 305 __u64 expiration_time; /* When the timer expired */ 306 __u64 delivery_time; /* When the message was delivered */ 307 } __packed; 308 309 310 /* Define synthetic interrupt controller flag constants. */ 311 #define HV_EVENT_FLAGS_COUNT (256 * 8) 312 #define HV_EVENT_FLAGS_LONG_COUNT (256 / sizeof(unsigned long)) 313 314 /* 315 * Synthetic timer configuration. 316 */ 317 union hv_stimer_config { 318 u64 as_uint64; 319 struct { 320 u64 enable:1; 321 u64 periodic:1; 322 u64 lazy:1; 323 u64 auto_enable:1; 324 u64 apic_vector:8; 325 u64 direct_mode:1; 326 u64 reserved_z0:3; 327 u64 sintx:4; 328 u64 reserved_z1:44; 329 } __packed; 330 }; 331 332 333 /* Define the synthetic interrupt controller event flags format. */ 334 union hv_synic_event_flags { 335 unsigned long flags[HV_EVENT_FLAGS_LONG_COUNT]; 336 }; 337 338 /* Define SynIC control register. */ 339 union hv_synic_scontrol { 340 u64 as_uint64; 341 struct { 342 u64 enable:1; 343 u64 reserved:63; 344 } __packed; 345 }; 346 347 /* Define synthetic interrupt source. */ 348 union hv_synic_sint { 349 u64 as_uint64; 350 struct { 351 u64 vector:8; 352 u64 reserved1:8; 353 u64 masked:1; 354 u64 auto_eoi:1; 355 u64 polling:1; 356 u64 reserved2:45; 357 } __packed; 358 }; 359 360 /* Define the format of the SIMP register */ 361 union hv_synic_simp { 362 u64 as_uint64; 363 struct { 364 u64 simp_enabled:1; 365 u64 preserved:11; 366 u64 base_simp_gpa:52; 367 } __packed; 368 }; 369 370 /* Define the format of the SIEFP register */ 371 union hv_synic_siefp { 372 u64 as_uint64; 373 struct { 374 u64 siefp_enabled:1; 375 u64 preserved:11; 376 u64 base_siefp_gpa:52; 377 } __packed; 378 }; 379 380 struct hv_vpset { 381 u64 format; 382 u64 valid_bank_mask; 383 u64 bank_contents[]; 384 } __packed; 385 386 /* HvCallSendSyntheticClusterIpi hypercall */ 387 struct hv_send_ipi { 388 u32 vector; 389 u32 reserved; 390 u64 cpu_mask; 391 } __packed; 392 393 /* HvCallSendSyntheticClusterIpiEx hypercall */ 394 struct hv_send_ipi_ex { 395 u32 vector; 396 u32 reserved; 397 struct hv_vpset vp_set; 398 } __packed; 399 400 /* HvFlushGuestPhysicalAddressSpace hypercalls */ 401 struct hv_guest_mapping_flush { 402 u64 address_space; 403 u64 flags; 404 } __packed; 405 406 /* 407 * HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited 408 * by the bitwidth of "additional_pages" in union hv_gpa_page_range. 409 */ 410 #define HV_MAX_FLUSH_PAGES (2048) 411 412 /* HvFlushGuestPhysicalAddressList hypercall */ 413 union hv_gpa_page_range { 414 u64 address_space; 415 struct { 416 u64 additional_pages:11; 417 u64 largepage:1; 418 u64 basepfn:52; 419 } page; 420 }; 421 422 /* 423 * All input flush parameters should be in single page. The max flush 424 * count is equal with how many entries of union hv_gpa_page_range can 425 * be populated into the input parameter page. 426 */ 427 #define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) / \ 428 sizeof(union hv_gpa_page_range)) 429 430 struct hv_guest_mapping_flush_list { 431 u64 address_space; 432 u64 flags; 433 union hv_gpa_page_range gpa_list[HV_MAX_FLUSH_REP_COUNT]; 434 }; 435 436 /* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */ 437 struct hv_tlb_flush { 438 u64 address_space; 439 u64 flags; 440 u64 processor_mask; 441 u64 gva_list[]; 442 } __packed; 443 444 /* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */ 445 struct hv_tlb_flush_ex { 446 u64 address_space; 447 u64 flags; 448 struct hv_vpset hv_vp_set; 449 u64 gva_list[]; 450 } __packed; 451 452 /* HvGetPartitionId hypercall (output only) */ 453 struct hv_get_partition_id { 454 u64 partition_id; 455 } __packed; 456 457 /* HvDepositMemory hypercall */ 458 struct hv_deposit_memory { 459 u64 partition_id; 460 u64 gpa_page_list[]; 461 } __packed; 462 463 struct hv_proximity_domain_flags { 464 u32 proximity_preferred : 1; 465 u32 reserved : 30; 466 u32 proximity_info_valid : 1; 467 } __packed; 468 469 /* Not a union in windows but useful for zeroing */ 470 union hv_proximity_domain_info { 471 struct { 472 u32 domain_id; 473 struct hv_proximity_domain_flags flags; 474 }; 475 u64 as_uint64; 476 } __packed; 477 478 struct hv_lp_startup_status { 479 u64 hv_status; 480 u64 substatus1; 481 u64 substatus2; 482 u64 substatus3; 483 u64 substatus4; 484 u64 substatus5; 485 u64 substatus6; 486 } __packed; 487 488 /* HvAddLogicalProcessor hypercall */ 489 struct hv_add_logical_processor_in { 490 u32 lp_index; 491 u32 apic_id; 492 union hv_proximity_domain_info proximity_domain_info; 493 u64 flags; 494 } __packed; 495 496 struct hv_add_logical_processor_out { 497 struct hv_lp_startup_status startup_status; 498 } __packed; 499 500 enum HV_SUBNODE_TYPE 501 { 502 HvSubnodeAny = 0, 503 HvSubnodeSocket = 1, 504 HvSubnodeAmdNode = 2, 505 HvSubnodeL3 = 3, 506 HvSubnodeCount = 4, 507 HvSubnodeInvalid = -1 508 }; 509 510 /* HvCreateVp hypercall */ 511 struct hv_create_vp { 512 u64 partition_id; 513 u32 vp_index; 514 u8 padding[3]; 515 u8 subnode_type; 516 u64 subnode_id; 517 union hv_proximity_domain_info proximity_domain_info; 518 u64 flags; 519 } __packed; 520 521 enum hv_interrupt_source { 522 HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */ 523 HV_INTERRUPT_SOURCE_IOAPIC, 524 }; 525 526 union hv_msi_address_register { 527 u32 as_uint32; 528 struct { 529 u32 reserved1:2; 530 u32 destination_mode:1; 531 u32 redirection_hint:1; 532 u32 reserved2:8; 533 u32 destination_id:8; 534 u32 msi_base:12; 535 }; 536 } __packed; 537 538 union hv_msi_data_register { 539 u32 as_uint32; 540 struct { 541 u32 vector:8; 542 u32 delivery_mode:3; 543 u32 reserved1:3; 544 u32 level_assert:1; 545 u32 trigger_mode:1; 546 u32 reserved2:16; 547 }; 548 } __packed; 549 550 /* HvRetargetDeviceInterrupt hypercall */ 551 union hv_msi_entry { 552 u64 as_uint64; 553 struct { 554 union hv_msi_address_register address; 555 union hv_msi_data_register data; 556 } __packed; 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 #endif 778