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 /* 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 /* Extended hypercalls */ 163 #define HV_EXT_CALL_QUERY_CAPABILITIES 0x8001 164 #define HV_EXT_CALL_MEMORY_HEAT_HINT 0x8003 165 166 #define HV_FLUSH_ALL_PROCESSORS BIT(0) 167 #define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) 168 #define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) 169 #define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3) 170 171 /* Extended capability bits */ 172 #define HV_EXT_CAPABILITY_MEMORY_COLD_DISCARD_HINT BIT(8) 173 174 enum HV_GENERIC_SET_FORMAT { 175 HV_GENERIC_SET_SPARSE_4K, 176 HV_GENERIC_SET_ALL, 177 }; 178 179 #define HV_PARTITION_ID_SELF ((u64)-1) 180 #define HV_VP_INDEX_SELF ((u32)-2) 181 182 #define HV_HYPERCALL_RESULT_MASK GENMASK_ULL(15, 0) 183 #define HV_HYPERCALL_FAST_BIT BIT(16) 184 #define HV_HYPERCALL_VARHEAD_OFFSET 17 185 #define HV_HYPERCALL_REP_COMP_OFFSET 32 186 #define HV_HYPERCALL_REP_COMP_1 BIT_ULL(32) 187 #define HV_HYPERCALL_REP_COMP_MASK GENMASK_ULL(43, 32) 188 #define HV_HYPERCALL_REP_START_OFFSET 48 189 #define HV_HYPERCALL_REP_START_MASK GENMASK_ULL(59, 48) 190 191 /* hypercall status code */ 192 #define HV_STATUS_SUCCESS 0 193 #define HV_STATUS_INVALID_HYPERCALL_CODE 2 194 #define HV_STATUS_INVALID_HYPERCALL_INPUT 3 195 #define HV_STATUS_INVALID_ALIGNMENT 4 196 #define HV_STATUS_INVALID_PARAMETER 5 197 #define HV_STATUS_ACCESS_DENIED 6 198 #define HV_STATUS_OPERATION_DENIED 8 199 #define HV_STATUS_INSUFFICIENT_MEMORY 11 200 #define HV_STATUS_INVALID_PORT_ID 17 201 #define HV_STATUS_INVALID_CONNECTION_ID 18 202 #define HV_STATUS_INSUFFICIENT_BUFFERS 19 203 204 /* 205 * The Hyper-V TimeRefCount register and the TSC 206 * page provide a guest VM clock with 100ns tick rate 207 */ 208 #define HV_CLOCK_HZ (NSEC_PER_SEC/100) 209 210 /* Define the number of synthetic interrupt sources. */ 211 #define HV_SYNIC_SINT_COUNT (16) 212 /* Define the expected SynIC version. */ 213 #define HV_SYNIC_VERSION_1 (0x1) 214 /* Valid SynIC vectors are 16-255. */ 215 #define HV_SYNIC_FIRST_VALID_VECTOR (16) 216 217 #define HV_SYNIC_CONTROL_ENABLE (1ULL << 0) 218 #define HV_SYNIC_SIMP_ENABLE (1ULL << 0) 219 #define HV_SYNIC_SIEFP_ENABLE (1ULL << 0) 220 #define HV_SYNIC_SINT_MASKED (1ULL << 16) 221 #define HV_SYNIC_SINT_AUTO_EOI (1ULL << 17) 222 #define HV_SYNIC_SINT_VECTOR_MASK (0xFF) 223 224 #define HV_SYNIC_STIMER_COUNT (4) 225 226 /* Define synthetic interrupt controller message constants. */ 227 #define HV_MESSAGE_SIZE (256) 228 #define HV_MESSAGE_PAYLOAD_BYTE_COUNT (240) 229 #define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30) 230 231 /* 232 * Define hypervisor message types. Some of the message types 233 * are x86/x64 specific, but there's no good way to separate 234 * them out into the arch-specific version of hyperv-tlfs.h 235 * because C doesn't provide a way to extend enum types. 236 * Keeping them all in the arch neutral hyperv-tlfs.h seems 237 * the least messy compromise. 238 */ 239 enum hv_message_type { 240 HVMSG_NONE = 0x00000000, 241 242 /* Memory access messages. */ 243 HVMSG_UNMAPPED_GPA = 0x80000000, 244 HVMSG_GPA_INTERCEPT = 0x80000001, 245 246 /* Timer notification messages. */ 247 HVMSG_TIMER_EXPIRED = 0x80000010, 248 249 /* Error messages. */ 250 HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020, 251 HVMSG_UNRECOVERABLE_EXCEPTION = 0x80000021, 252 HVMSG_UNSUPPORTED_FEATURE = 0x80000022, 253 254 /* Trace buffer complete messages. */ 255 HVMSG_EVENTLOG_BUFFERCOMPLETE = 0x80000040, 256 257 /* Platform-specific processor intercept messages. */ 258 HVMSG_X64_IOPORT_INTERCEPT = 0x80010000, 259 HVMSG_X64_MSR_INTERCEPT = 0x80010001, 260 HVMSG_X64_CPUID_INTERCEPT = 0x80010002, 261 HVMSG_X64_EXCEPTION_INTERCEPT = 0x80010003, 262 HVMSG_X64_APIC_EOI = 0x80010004, 263 HVMSG_X64_LEGACY_FP_ERROR = 0x80010005 264 }; 265 266 /* Define synthetic interrupt controller message flags. */ 267 union hv_message_flags { 268 __u8 asu8; 269 struct { 270 __u8 msg_pending:1; 271 __u8 reserved:7; 272 } __packed; 273 }; 274 275 /* Define port identifier type. */ 276 union hv_port_id { 277 __u32 asu32; 278 struct { 279 __u32 id:24; 280 __u32 reserved:8; 281 } __packed u; 282 }; 283 284 /* Define synthetic interrupt controller message header. */ 285 struct hv_message_header { 286 __u32 message_type; 287 __u8 payload_size; 288 union hv_message_flags message_flags; 289 __u8 reserved[2]; 290 union { 291 __u64 sender; 292 union hv_port_id port; 293 }; 294 } __packed; 295 296 /* Define synthetic interrupt controller message format. */ 297 struct hv_message { 298 struct hv_message_header header; 299 union { 300 __u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT]; 301 } u; 302 } __packed; 303 304 /* Define the synthetic interrupt message page layout. */ 305 struct hv_message_page { 306 struct hv_message sint_message[HV_SYNIC_SINT_COUNT]; 307 } __packed; 308 309 /* Define timer message payload structure. */ 310 struct hv_timer_message_payload { 311 __u32 timer_index; 312 __u32 reserved; 313 __u64 expiration_time; /* When the timer expired */ 314 __u64 delivery_time; /* When the message was delivered */ 315 } __packed; 316 317 318 /* Define synthetic interrupt controller flag constants. */ 319 #define HV_EVENT_FLAGS_COUNT (256 * 8) 320 #define HV_EVENT_FLAGS_LONG_COUNT (256 / sizeof(unsigned long)) 321 322 /* 323 * Synthetic timer configuration. 324 */ 325 union hv_stimer_config { 326 u64 as_uint64; 327 struct { 328 u64 enable:1; 329 u64 periodic:1; 330 u64 lazy:1; 331 u64 auto_enable:1; 332 u64 apic_vector:8; 333 u64 direct_mode:1; 334 u64 reserved_z0:3; 335 u64 sintx:4; 336 u64 reserved_z1:44; 337 } __packed; 338 }; 339 340 341 /* Define the synthetic interrupt controller event flags format. */ 342 union hv_synic_event_flags { 343 unsigned long flags[HV_EVENT_FLAGS_LONG_COUNT]; 344 }; 345 346 /* Define SynIC control register. */ 347 union hv_synic_scontrol { 348 u64 as_uint64; 349 struct { 350 u64 enable:1; 351 u64 reserved:63; 352 } __packed; 353 }; 354 355 /* Define synthetic interrupt source. */ 356 union hv_synic_sint { 357 u64 as_uint64; 358 struct { 359 u64 vector:8; 360 u64 reserved1:8; 361 u64 masked:1; 362 u64 auto_eoi:1; 363 u64 polling:1; 364 u64 reserved2:45; 365 } __packed; 366 }; 367 368 /* Define the format of the SIMP register */ 369 union hv_synic_simp { 370 u64 as_uint64; 371 struct { 372 u64 simp_enabled:1; 373 u64 preserved:11; 374 u64 base_simp_gpa:52; 375 } __packed; 376 }; 377 378 /* Define the format of the SIEFP register */ 379 union hv_synic_siefp { 380 u64 as_uint64; 381 struct { 382 u64 siefp_enabled:1; 383 u64 preserved:11; 384 u64 base_siefp_gpa:52; 385 } __packed; 386 }; 387 388 struct hv_vpset { 389 u64 format; 390 u64 valid_bank_mask; 391 u64 bank_contents[]; 392 } __packed; 393 394 /* HvCallSendSyntheticClusterIpi hypercall */ 395 struct hv_send_ipi { 396 u32 vector; 397 u32 reserved; 398 u64 cpu_mask; 399 } __packed; 400 401 /* HvCallSendSyntheticClusterIpiEx hypercall */ 402 struct hv_send_ipi_ex { 403 u32 vector; 404 u32 reserved; 405 struct hv_vpset vp_set; 406 } __packed; 407 408 /* HvFlushGuestPhysicalAddressSpace hypercalls */ 409 struct hv_guest_mapping_flush { 410 u64 address_space; 411 u64 flags; 412 } __packed; 413 414 /* 415 * HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited 416 * by the bitwidth of "additional_pages" in union hv_gpa_page_range. 417 */ 418 #define HV_MAX_FLUSH_PAGES (2048) 419 #define HV_GPA_PAGE_RANGE_PAGE_SIZE_2MB 0 420 #define HV_GPA_PAGE_RANGE_PAGE_SIZE_1GB 1 421 422 /* HvFlushGuestPhysicalAddressList, HvExtCallMemoryHeatHint hypercall */ 423 union hv_gpa_page_range { 424 u64 address_space; 425 struct { 426 u64 additional_pages:11; 427 u64 largepage:1; 428 u64 basepfn:52; 429 } page; 430 struct { 431 u64 reserved:12; 432 u64 page_size:1; 433 u64 reserved1:8; 434 u64 base_large_pfn:43; 435 }; 436 }; 437 438 /* 439 * All input flush parameters should be in single page. The max flush 440 * count is equal with how many entries of union hv_gpa_page_range can 441 * be populated into the input parameter page. 442 */ 443 #define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) / \ 444 sizeof(union hv_gpa_page_range)) 445 446 struct hv_guest_mapping_flush_list { 447 u64 address_space; 448 u64 flags; 449 union hv_gpa_page_range gpa_list[HV_MAX_FLUSH_REP_COUNT]; 450 }; 451 452 /* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */ 453 struct hv_tlb_flush { 454 u64 address_space; 455 u64 flags; 456 u64 processor_mask; 457 u64 gva_list[]; 458 } __packed; 459 460 /* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */ 461 struct hv_tlb_flush_ex { 462 u64 address_space; 463 u64 flags; 464 struct hv_vpset hv_vp_set; 465 u64 gva_list[]; 466 } __packed; 467 468 /* HvGetPartitionId hypercall (output only) */ 469 struct hv_get_partition_id { 470 u64 partition_id; 471 } __packed; 472 473 /* HvDepositMemory hypercall */ 474 struct hv_deposit_memory { 475 u64 partition_id; 476 u64 gpa_page_list[]; 477 } __packed; 478 479 struct hv_proximity_domain_flags { 480 u32 proximity_preferred : 1; 481 u32 reserved : 30; 482 u32 proximity_info_valid : 1; 483 } __packed; 484 485 /* Not a union in windows but useful for zeroing */ 486 union hv_proximity_domain_info { 487 struct { 488 u32 domain_id; 489 struct hv_proximity_domain_flags flags; 490 }; 491 u64 as_uint64; 492 } __packed; 493 494 struct hv_lp_startup_status { 495 u64 hv_status; 496 u64 substatus1; 497 u64 substatus2; 498 u64 substatus3; 499 u64 substatus4; 500 u64 substatus5; 501 u64 substatus6; 502 } __packed; 503 504 /* HvAddLogicalProcessor hypercall */ 505 struct hv_add_logical_processor_in { 506 u32 lp_index; 507 u32 apic_id; 508 union hv_proximity_domain_info proximity_domain_info; 509 u64 flags; 510 } __packed; 511 512 struct hv_add_logical_processor_out { 513 struct hv_lp_startup_status startup_status; 514 } __packed; 515 516 enum HV_SUBNODE_TYPE 517 { 518 HvSubnodeAny = 0, 519 HvSubnodeSocket = 1, 520 HvSubnodeAmdNode = 2, 521 HvSubnodeL3 = 3, 522 HvSubnodeCount = 4, 523 HvSubnodeInvalid = -1 524 }; 525 526 /* HvCreateVp hypercall */ 527 struct hv_create_vp { 528 u64 partition_id; 529 u32 vp_index; 530 u8 padding[3]; 531 u8 subnode_type; 532 u64 subnode_id; 533 union hv_proximity_domain_info proximity_domain_info; 534 u64 flags; 535 } __packed; 536 537 enum hv_interrupt_source { 538 HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */ 539 HV_INTERRUPT_SOURCE_IOAPIC, 540 }; 541 542 union hv_msi_address_register { 543 u32 as_uint32; 544 struct { 545 u32 reserved1:2; 546 u32 destination_mode:1; 547 u32 redirection_hint:1; 548 u32 reserved2:8; 549 u32 destination_id:8; 550 u32 msi_base:12; 551 }; 552 } __packed; 553 554 union hv_msi_data_register { 555 u32 as_uint32; 556 struct { 557 u32 vector:8; 558 u32 delivery_mode:3; 559 u32 reserved1:3; 560 u32 level_assert:1; 561 u32 trigger_mode:1; 562 u32 reserved2:16; 563 }; 564 } __packed; 565 566 /* HvRetargetDeviceInterrupt hypercall */ 567 union hv_msi_entry { 568 u64 as_uint64; 569 struct { 570 union hv_msi_address_register address; 571 union hv_msi_data_register data; 572 } __packed; 573 }; 574 575 union hv_ioapic_rte { 576 u64 as_uint64; 577 578 struct { 579 u32 vector:8; 580 u32 delivery_mode:3; 581 u32 destination_mode:1; 582 u32 delivery_status:1; 583 u32 interrupt_polarity:1; 584 u32 remote_irr:1; 585 u32 trigger_mode:1; 586 u32 interrupt_mask:1; 587 u32 reserved1:15; 588 589 u32 reserved2:24; 590 u32 destination_id:8; 591 }; 592 593 struct { 594 u32 low_uint32; 595 u32 high_uint32; 596 }; 597 } __packed; 598 599 struct hv_interrupt_entry { 600 u32 source; 601 u32 reserved1; 602 union { 603 union hv_msi_entry msi_entry; 604 union hv_ioapic_rte ioapic_rte; 605 }; 606 } __packed; 607 608 /* 609 * flags for hv_device_interrupt_target.flags 610 */ 611 #define HV_DEVICE_INTERRUPT_TARGET_MULTICAST 1 612 #define HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET 2 613 614 struct hv_device_interrupt_target { 615 u32 vector; 616 u32 flags; 617 union { 618 u64 vp_mask; 619 struct hv_vpset vp_set; 620 }; 621 } __packed; 622 623 struct hv_retarget_device_interrupt { 624 u64 partition_id; /* use "self" */ 625 u64 device_id; 626 struct hv_interrupt_entry int_entry; 627 u64 reserved2; 628 struct hv_device_interrupt_target int_target; 629 } __packed __aligned(8); 630 631 632 /* HvGetVpRegisters hypercall input with variable size reg name list*/ 633 struct hv_get_vp_registers_input { 634 struct { 635 u64 partitionid; 636 u32 vpindex; 637 u8 inputvtl; 638 u8 padding[3]; 639 } header; 640 struct input { 641 u32 name0; 642 u32 name1; 643 } element[]; 644 } __packed; 645 646 647 /* HvGetVpRegisters returns an array of these output elements */ 648 struct hv_get_vp_registers_output { 649 union { 650 struct { 651 u32 a; 652 u32 b; 653 u32 c; 654 u32 d; 655 } as32 __packed; 656 struct { 657 u64 low; 658 u64 high; 659 } as64 __packed; 660 }; 661 }; 662 663 /* HvSetVpRegisters hypercall with variable size reg name/value list*/ 664 struct hv_set_vp_registers_input { 665 struct { 666 u64 partitionid; 667 u32 vpindex; 668 u8 inputvtl; 669 u8 padding[3]; 670 } header; 671 struct { 672 u32 name; 673 u32 padding1; 674 u64 padding2; 675 u64 valuelow; 676 u64 valuehigh; 677 } element[]; 678 } __packed; 679 680 enum hv_device_type { 681 HV_DEVICE_TYPE_LOGICAL = 0, 682 HV_DEVICE_TYPE_PCI = 1, 683 HV_DEVICE_TYPE_IOAPIC = 2, 684 HV_DEVICE_TYPE_ACPI = 3, 685 }; 686 687 typedef u16 hv_pci_rid; 688 typedef u16 hv_pci_segment; 689 typedef u64 hv_logical_device_id; 690 union hv_pci_bdf { 691 u16 as_uint16; 692 693 struct { 694 u8 function:3; 695 u8 device:5; 696 u8 bus; 697 }; 698 } __packed; 699 700 union hv_pci_bus_range { 701 u16 as_uint16; 702 703 struct { 704 u8 subordinate_bus; 705 u8 secondary_bus; 706 }; 707 } __packed; 708 709 union hv_device_id { 710 u64 as_uint64; 711 712 struct { 713 u64 reserved0:62; 714 u64 device_type:2; 715 }; 716 717 /* HV_DEVICE_TYPE_LOGICAL */ 718 struct { 719 u64 id:62; 720 u64 device_type:2; 721 } logical; 722 723 /* HV_DEVICE_TYPE_PCI */ 724 struct { 725 union { 726 hv_pci_rid rid; 727 union hv_pci_bdf bdf; 728 }; 729 730 hv_pci_segment segment; 731 union hv_pci_bus_range shadow_bus_range; 732 733 u16 phantom_function_bits:2; 734 u16 source_shadow:1; 735 736 u16 rsvdz0:11; 737 u16 device_type:2; 738 } pci; 739 740 /* HV_DEVICE_TYPE_IOAPIC */ 741 struct { 742 u8 ioapic_id; 743 u8 rsvdz0; 744 u16 rsvdz1; 745 u16 rsvdz2; 746 747 u16 rsvdz3:14; 748 u16 device_type:2; 749 } ioapic; 750 751 /* HV_DEVICE_TYPE_ACPI */ 752 struct { 753 u32 input_mapping_base; 754 u32 input_mapping_count:30; 755 u32 device_type:2; 756 } acpi; 757 } __packed; 758 759 enum hv_interrupt_trigger_mode { 760 HV_INTERRUPT_TRIGGER_MODE_EDGE = 0, 761 HV_INTERRUPT_TRIGGER_MODE_LEVEL = 1, 762 }; 763 764 struct hv_device_interrupt_descriptor { 765 u32 interrupt_type; 766 u32 trigger_mode; 767 u32 vector_count; 768 u32 reserved; 769 struct hv_device_interrupt_target target; 770 } __packed; 771 772 struct hv_input_map_device_interrupt { 773 u64 partition_id; 774 u64 device_id; 775 u64 flags; 776 struct hv_interrupt_entry logical_interrupt_entry; 777 struct hv_device_interrupt_descriptor interrupt_descriptor; 778 } __packed; 779 780 struct hv_output_map_device_interrupt { 781 struct hv_interrupt_entry interrupt_entry; 782 } __packed; 783 784 struct hv_input_unmap_device_interrupt { 785 u64 partition_id; 786 u64 device_id; 787 struct hv_interrupt_entry interrupt_entry; 788 } __packed; 789 790 #define HV_SOURCE_SHADOW_NONE 0x0 791 #define HV_SOURCE_SHADOW_BRIDGE_BUS_RANGE 0x1 792 793 /* 794 * The whole argument should fit in a page to be able to pass to the hypervisor 795 * in one hypercall. 796 */ 797 #define HV_MEMORY_HINT_MAX_GPA_PAGE_RANGES \ 798 ((HV_HYP_PAGE_SIZE - sizeof(struct hv_memory_hint)) / \ 799 sizeof(union hv_gpa_page_range)) 800 801 /* HvExtCallMemoryHeatHint hypercall */ 802 #define HV_EXT_MEMORY_HEAT_HINT_TYPE_COLD_DISCARD 2 803 struct hv_memory_hint { 804 u64 type:2; 805 u64 reserved:62; 806 union hv_gpa_page_range ranges[]; 807 } __packed; 808 809 #endif 810
