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 #define HVCALL_MODIFY_SPARSE_GPA_PAGE_HOST_VISIBILITY 0x00db 162 163 /* Extended hypercalls */ 164 #define HV_EXT_CALL_QUERY_CAPABILITIES 0x8001 165 #define HV_EXT_CALL_MEMORY_HEAT_HINT 0x8003 166 167 #define HV_FLUSH_ALL_PROCESSORS BIT(0) 168 #define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) 169 #define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) 170 #define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3) 171 172 /* Extended capability bits */ 173 #define HV_EXT_CAPABILITY_MEMORY_COLD_DISCARD_HINT BIT(8) 174 175 enum HV_GENERIC_SET_FORMAT { 176 HV_GENERIC_SET_SPARSE_4K, 177 HV_GENERIC_SET_ALL, 178 }; 179 180 #define HV_PARTITION_ID_SELF ((u64)-1) 181 #define HV_VP_INDEX_SELF ((u32)-2) 182 183 #define HV_HYPERCALL_RESULT_MASK GENMASK_ULL(15, 0) 184 #define HV_HYPERCALL_FAST_BIT BIT(16) 185 #define HV_HYPERCALL_VARHEAD_OFFSET 17 186 #define HV_HYPERCALL_VARHEAD_MASK GENMASK_ULL(26, 17) 187 #define HV_HYPERCALL_RSVD0_MASK GENMASK_ULL(31, 27) 188 #define HV_HYPERCALL_REP_COMP_OFFSET 32 189 #define HV_HYPERCALL_REP_COMP_1 BIT_ULL(32) 190 #define HV_HYPERCALL_REP_COMP_MASK GENMASK_ULL(43, 32) 191 #define HV_HYPERCALL_RSVD1_MASK GENMASK_ULL(47, 44) 192 #define HV_HYPERCALL_REP_START_OFFSET 48 193 #define HV_HYPERCALL_REP_START_MASK GENMASK_ULL(59, 48) 194 #define HV_HYPERCALL_RSVD2_MASK GENMASK_ULL(63, 60) 195 #define HV_HYPERCALL_RSVD_MASK (HV_HYPERCALL_RSVD0_MASK | \ 196 HV_HYPERCALL_RSVD1_MASK | \ 197 HV_HYPERCALL_RSVD2_MASK) 198 199 /* hypercall status code */ 200 #define HV_STATUS_SUCCESS 0 201 #define HV_STATUS_INVALID_HYPERCALL_CODE 2 202 #define HV_STATUS_INVALID_HYPERCALL_INPUT 3 203 #define HV_STATUS_INVALID_ALIGNMENT 4 204 #define HV_STATUS_INVALID_PARAMETER 5 205 #define HV_STATUS_ACCESS_DENIED 6 206 #define HV_STATUS_OPERATION_DENIED 8 207 #define HV_STATUS_INSUFFICIENT_MEMORY 11 208 #define HV_STATUS_INVALID_PORT_ID 17 209 #define HV_STATUS_INVALID_CONNECTION_ID 18 210 #define HV_STATUS_INSUFFICIENT_BUFFERS 19 211 212 /* 213 * The Hyper-V TimeRefCount register and the TSC 214 * page provide a guest VM clock with 100ns tick rate 215 */ 216 #define HV_CLOCK_HZ (NSEC_PER_SEC/100) 217 218 /* Define the number of synthetic interrupt sources. */ 219 #define HV_SYNIC_SINT_COUNT (16) 220 /* Define the expected SynIC version. */ 221 #define HV_SYNIC_VERSION_1 (0x1) 222 /* Valid SynIC vectors are 16-255. */ 223 #define HV_SYNIC_FIRST_VALID_VECTOR (16) 224 225 #define HV_SYNIC_CONTROL_ENABLE (1ULL << 0) 226 #define HV_SYNIC_SIMP_ENABLE (1ULL << 0) 227 #define HV_SYNIC_SIEFP_ENABLE (1ULL << 0) 228 #define HV_SYNIC_SINT_MASKED (1ULL << 16) 229 #define HV_SYNIC_SINT_AUTO_EOI (1ULL << 17) 230 #define HV_SYNIC_SINT_VECTOR_MASK (0xFF) 231 232 #define HV_SYNIC_STIMER_COUNT (4) 233 234 /* Define synthetic interrupt controller message constants. */ 235 #define HV_MESSAGE_SIZE (256) 236 #define HV_MESSAGE_PAYLOAD_BYTE_COUNT (240) 237 #define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30) 238 239 /* 240 * Define hypervisor message types. Some of the message types 241 * are x86/x64 specific, but there's no good way to separate 242 * them out into the arch-specific version of hyperv-tlfs.h 243 * because C doesn't provide a way to extend enum types. 244 * Keeping them all in the arch neutral hyperv-tlfs.h seems 245 * the least messy compromise. 246 */ 247 enum hv_message_type { 248 HVMSG_NONE = 0x00000000, 249 250 /* Memory access messages. */ 251 HVMSG_UNMAPPED_GPA = 0x80000000, 252 HVMSG_GPA_INTERCEPT = 0x80000001, 253 254 /* Timer notification messages. */ 255 HVMSG_TIMER_EXPIRED = 0x80000010, 256 257 /* Error messages. */ 258 HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020, 259 HVMSG_UNRECOVERABLE_EXCEPTION = 0x80000021, 260 HVMSG_UNSUPPORTED_FEATURE = 0x80000022, 261 262 /* Trace buffer complete messages. */ 263 HVMSG_EVENTLOG_BUFFERCOMPLETE = 0x80000040, 264 265 /* Platform-specific processor intercept messages. */ 266 HVMSG_X64_IOPORT_INTERCEPT = 0x80010000, 267 HVMSG_X64_MSR_INTERCEPT = 0x80010001, 268 HVMSG_X64_CPUID_INTERCEPT = 0x80010002, 269 HVMSG_X64_EXCEPTION_INTERCEPT = 0x80010003, 270 HVMSG_X64_APIC_EOI = 0x80010004, 271 HVMSG_X64_LEGACY_FP_ERROR = 0x80010005 272 }; 273 274 /* Define synthetic interrupt controller message flags. */ 275 union hv_message_flags { 276 __u8 asu8; 277 struct { 278 __u8 msg_pending:1; 279 __u8 reserved:7; 280 } __packed; 281 }; 282 283 /* Define port identifier type. */ 284 union hv_port_id { 285 __u32 asu32; 286 struct { 287 __u32 id:24; 288 __u32 reserved:8; 289 } __packed u; 290 }; 291 292 /* Define synthetic interrupt controller message header. */ 293 struct hv_message_header { 294 __u32 message_type; 295 __u8 payload_size; 296 union hv_message_flags message_flags; 297 __u8 reserved[2]; 298 union { 299 __u64 sender; 300 union hv_port_id port; 301 }; 302 } __packed; 303 304 /* Define synthetic interrupt controller message format. */ 305 struct hv_message { 306 struct hv_message_header header; 307 union { 308 __u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT]; 309 } u; 310 } __packed; 311 312 /* Define the synthetic interrupt message page layout. */ 313 struct hv_message_page { 314 struct hv_message sint_message[HV_SYNIC_SINT_COUNT]; 315 } __packed; 316 317 /* Define timer message payload structure. */ 318 struct hv_timer_message_payload { 319 __u32 timer_index; 320 __u32 reserved; 321 __u64 expiration_time; /* When the timer expired */ 322 __u64 delivery_time; /* When the message was delivered */ 323 } __packed; 324 325 326 /* Define synthetic interrupt controller flag constants. */ 327 #define HV_EVENT_FLAGS_COUNT (256 * 8) 328 #define HV_EVENT_FLAGS_LONG_COUNT (256 / sizeof(unsigned long)) 329 330 /* 331 * Synthetic timer configuration. 332 */ 333 union hv_stimer_config { 334 u64 as_uint64; 335 struct { 336 u64 enable:1; 337 u64 periodic:1; 338 u64 lazy:1; 339 u64 auto_enable:1; 340 u64 apic_vector:8; 341 u64 direct_mode:1; 342 u64 reserved_z0:3; 343 u64 sintx:4; 344 u64 reserved_z1:44; 345 } __packed; 346 }; 347 348 349 /* Define the synthetic interrupt controller event flags format. */ 350 union hv_synic_event_flags { 351 unsigned long flags[HV_EVENT_FLAGS_LONG_COUNT]; 352 }; 353 354 /* Define SynIC control register. */ 355 union hv_synic_scontrol { 356 u64 as_uint64; 357 struct { 358 u64 enable:1; 359 u64 reserved:63; 360 } __packed; 361 }; 362 363 /* Define synthetic interrupt source. */ 364 union hv_synic_sint { 365 u64 as_uint64; 366 struct { 367 u64 vector:8; 368 u64 reserved1:8; 369 u64 masked:1; 370 u64 auto_eoi:1; 371 u64 polling:1; 372 u64 reserved2:45; 373 } __packed; 374 }; 375 376 /* Define the format of the SIMP register */ 377 union hv_synic_simp { 378 u64 as_uint64; 379 struct { 380 u64 simp_enabled:1; 381 u64 preserved:11; 382 u64 base_simp_gpa:52; 383 } __packed; 384 }; 385 386 /* Define the format of the SIEFP register */ 387 union hv_synic_siefp { 388 u64 as_uint64; 389 struct { 390 u64 siefp_enabled:1; 391 u64 preserved:11; 392 u64 base_siefp_gpa:52; 393 } __packed; 394 }; 395 396 struct hv_vpset { 397 u64 format; 398 u64 valid_bank_mask; 399 u64 bank_contents[]; 400 } __packed; 401 402 /* HvCallSendSyntheticClusterIpi hypercall */ 403 struct hv_send_ipi { 404 u32 vector; 405 u32 reserved; 406 u64 cpu_mask; 407 } __packed; 408 409 /* HvCallSendSyntheticClusterIpiEx hypercall */ 410 struct hv_send_ipi_ex { 411 u32 vector; 412 u32 reserved; 413 struct hv_vpset vp_set; 414 } __packed; 415 416 /* HvFlushGuestPhysicalAddressSpace hypercalls */ 417 struct hv_guest_mapping_flush { 418 u64 address_space; 419 u64 flags; 420 } __packed; 421 422 /* 423 * HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited 424 * by the bitwidth of "additional_pages" in union hv_gpa_page_range. 425 */ 426 #define HV_MAX_FLUSH_PAGES (2048) 427 #define HV_GPA_PAGE_RANGE_PAGE_SIZE_2MB 0 428 #define HV_GPA_PAGE_RANGE_PAGE_SIZE_1GB 1 429 430 /* HvFlushGuestPhysicalAddressList, HvExtCallMemoryHeatHint hypercall */ 431 union hv_gpa_page_range { 432 u64 address_space; 433 struct { 434 u64 additional_pages:11; 435 u64 largepage:1; 436 u64 basepfn:52; 437 } page; 438 struct { 439 u64 reserved:12; 440 u64 page_size:1; 441 u64 reserved1:8; 442 u64 base_large_pfn:43; 443 }; 444 }; 445 446 /* 447 * All input flush parameters should be in single page. The max flush 448 * count is equal with how many entries of union hv_gpa_page_range can 449 * be populated into the input parameter page. 450 */ 451 #define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) / \ 452 sizeof(union hv_gpa_page_range)) 453 454 struct hv_guest_mapping_flush_list { 455 u64 address_space; 456 u64 flags; 457 union hv_gpa_page_range gpa_list[HV_MAX_FLUSH_REP_COUNT]; 458 }; 459 460 /* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */ 461 struct hv_tlb_flush { 462 u64 address_space; 463 u64 flags; 464 u64 processor_mask; 465 u64 gva_list[]; 466 } __packed; 467 468 /* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */ 469 struct hv_tlb_flush_ex { 470 u64 address_space; 471 u64 flags; 472 struct hv_vpset hv_vp_set; 473 u64 gva_list[]; 474 } __packed; 475 476 /* HvGetPartitionId hypercall (output only) */ 477 struct hv_get_partition_id { 478 u64 partition_id; 479 } __packed; 480 481 /* HvDepositMemory hypercall */ 482 struct hv_deposit_memory { 483 u64 partition_id; 484 u64 gpa_page_list[]; 485 } __packed; 486 487 struct hv_proximity_domain_flags { 488 u32 proximity_preferred : 1; 489 u32 reserved : 30; 490 u32 proximity_info_valid : 1; 491 } __packed; 492 493 /* Not a union in windows but useful for zeroing */ 494 union hv_proximity_domain_info { 495 struct { 496 u32 domain_id; 497 struct hv_proximity_domain_flags flags; 498 }; 499 u64 as_uint64; 500 } __packed; 501 502 struct hv_lp_startup_status { 503 u64 hv_status; 504 u64 substatus1; 505 u64 substatus2; 506 u64 substatus3; 507 u64 substatus4; 508 u64 substatus5; 509 u64 substatus6; 510 } __packed; 511 512 /* HvAddLogicalProcessor hypercall */ 513 struct hv_add_logical_processor_in { 514 u32 lp_index; 515 u32 apic_id; 516 union hv_proximity_domain_info proximity_domain_info; 517 u64 flags; 518 } __packed; 519 520 struct hv_add_logical_processor_out { 521 struct hv_lp_startup_status startup_status; 522 } __packed; 523 524 enum HV_SUBNODE_TYPE 525 { 526 HvSubnodeAny = 0, 527 HvSubnodeSocket = 1, 528 HvSubnodeAmdNode = 2, 529 HvSubnodeL3 = 3, 530 HvSubnodeCount = 4, 531 HvSubnodeInvalid = -1 532 }; 533 534 /* HvCreateVp hypercall */ 535 struct hv_create_vp { 536 u64 partition_id; 537 u32 vp_index; 538 u8 padding[3]; 539 u8 subnode_type; 540 u64 subnode_id; 541 union hv_proximity_domain_info proximity_domain_info; 542 u64 flags; 543 } __packed; 544 545 enum hv_interrupt_source { 546 HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */ 547 HV_INTERRUPT_SOURCE_IOAPIC, 548 }; 549 550 union hv_ioapic_rte { 551 u64 as_uint64; 552 553 struct { 554 u32 vector:8; 555 u32 delivery_mode:3; 556 u32 destination_mode:1; 557 u32 delivery_status:1; 558 u32 interrupt_polarity:1; 559 u32 remote_irr:1; 560 u32 trigger_mode:1; 561 u32 interrupt_mask:1; 562 u32 reserved1:15; 563 564 u32 reserved2:24; 565 u32 destination_id:8; 566 }; 567 568 struct { 569 u32 low_uint32; 570 u32 high_uint32; 571 }; 572 } __packed; 573 574 struct hv_interrupt_entry { 575 u32 source; 576 u32 reserved1; 577 union { 578 union hv_msi_entry msi_entry; 579 union hv_ioapic_rte ioapic_rte; 580 }; 581 } __packed; 582 583 /* 584 * flags for hv_device_interrupt_target.flags 585 */ 586 #define HV_DEVICE_INTERRUPT_TARGET_MULTICAST 1 587 #define HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET 2 588 589 struct hv_device_interrupt_target { 590 u32 vector; 591 u32 flags; 592 union { 593 u64 vp_mask; 594 struct hv_vpset vp_set; 595 }; 596 } __packed; 597 598 struct hv_retarget_device_interrupt { 599 u64 partition_id; /* use "self" */ 600 u64 device_id; 601 struct hv_interrupt_entry int_entry; 602 u64 reserved2; 603 struct hv_device_interrupt_target int_target; 604 } __packed __aligned(8); 605 606 607 /* HvGetVpRegisters hypercall input with variable size reg name list*/ 608 struct hv_get_vp_registers_input { 609 struct { 610 u64 partitionid; 611 u32 vpindex; 612 u8 inputvtl; 613 u8 padding[3]; 614 } header; 615 struct input { 616 u32 name0; 617 u32 name1; 618 } element[]; 619 } __packed; 620 621 622 /* HvGetVpRegisters returns an array of these output elements */ 623 struct hv_get_vp_registers_output { 624 union { 625 struct { 626 u32 a; 627 u32 b; 628 u32 c; 629 u32 d; 630 } as32 __packed; 631 struct { 632 u64 low; 633 u64 high; 634 } as64 __packed; 635 }; 636 }; 637 638 /* HvSetVpRegisters hypercall with variable size reg name/value list*/ 639 struct hv_set_vp_registers_input { 640 struct { 641 u64 partitionid; 642 u32 vpindex; 643 u8 inputvtl; 644 u8 padding[3]; 645 } header; 646 struct { 647 u32 name; 648 u32 padding1; 649 u64 padding2; 650 u64 valuelow; 651 u64 valuehigh; 652 } element[]; 653 } __packed; 654 655 enum hv_device_type { 656 HV_DEVICE_TYPE_LOGICAL = 0, 657 HV_DEVICE_TYPE_PCI = 1, 658 HV_DEVICE_TYPE_IOAPIC = 2, 659 HV_DEVICE_TYPE_ACPI = 3, 660 }; 661 662 typedef u16 hv_pci_rid; 663 typedef u16 hv_pci_segment; 664 typedef u64 hv_logical_device_id; 665 union hv_pci_bdf { 666 u16 as_uint16; 667 668 struct { 669 u8 function:3; 670 u8 device:5; 671 u8 bus; 672 }; 673 } __packed; 674 675 union hv_pci_bus_range { 676 u16 as_uint16; 677 678 struct { 679 u8 subordinate_bus; 680 u8 secondary_bus; 681 }; 682 } __packed; 683 684 union hv_device_id { 685 u64 as_uint64; 686 687 struct { 688 u64 reserved0:62; 689 u64 device_type:2; 690 }; 691 692 /* HV_DEVICE_TYPE_LOGICAL */ 693 struct { 694 u64 id:62; 695 u64 device_type:2; 696 } logical; 697 698 /* HV_DEVICE_TYPE_PCI */ 699 struct { 700 union { 701 hv_pci_rid rid; 702 union hv_pci_bdf bdf; 703 }; 704 705 hv_pci_segment segment; 706 union hv_pci_bus_range shadow_bus_range; 707 708 u16 phantom_function_bits:2; 709 u16 source_shadow:1; 710 711 u16 rsvdz0:11; 712 u16 device_type:2; 713 } pci; 714 715 /* HV_DEVICE_TYPE_IOAPIC */ 716 struct { 717 u8 ioapic_id; 718 u8 rsvdz0; 719 u16 rsvdz1; 720 u16 rsvdz2; 721 722 u16 rsvdz3:14; 723 u16 device_type:2; 724 } ioapic; 725 726 /* HV_DEVICE_TYPE_ACPI */ 727 struct { 728 u32 input_mapping_base; 729 u32 input_mapping_count:30; 730 u32 device_type:2; 731 } acpi; 732 } __packed; 733 734 enum hv_interrupt_trigger_mode { 735 HV_INTERRUPT_TRIGGER_MODE_EDGE = 0, 736 HV_INTERRUPT_TRIGGER_MODE_LEVEL = 1, 737 }; 738 739 struct hv_device_interrupt_descriptor { 740 u32 interrupt_type; 741 u32 trigger_mode; 742 u32 vector_count; 743 u32 reserved; 744 struct hv_device_interrupt_target target; 745 } __packed; 746 747 struct hv_input_map_device_interrupt { 748 u64 partition_id; 749 u64 device_id; 750 u64 flags; 751 struct hv_interrupt_entry logical_interrupt_entry; 752 struct hv_device_interrupt_descriptor interrupt_descriptor; 753 } __packed; 754 755 struct hv_output_map_device_interrupt { 756 struct hv_interrupt_entry interrupt_entry; 757 } __packed; 758 759 struct hv_input_unmap_device_interrupt { 760 u64 partition_id; 761 u64 device_id; 762 struct hv_interrupt_entry interrupt_entry; 763 } __packed; 764 765 #define HV_SOURCE_SHADOW_NONE 0x0 766 #define HV_SOURCE_SHADOW_BRIDGE_BUS_RANGE 0x1 767 768 /* 769 * The whole argument should fit in a page to be able to pass to the hypervisor 770 * in one hypercall. 771 */ 772 #define HV_MEMORY_HINT_MAX_GPA_PAGE_RANGES \ 773 ((HV_HYP_PAGE_SIZE - sizeof(struct hv_memory_hint)) / \ 774 sizeof(union hv_gpa_page_range)) 775 776 /* HvExtCallMemoryHeatHint hypercall */ 777 #define HV_EXT_MEMORY_HEAT_HINT_TYPE_COLD_DISCARD 2 778 struct hv_memory_hint { 779 u64 type:2; 780 u64 reserved:62; 781 union hv_gpa_page_range ranges[]; 782 } __packed; 783 784 #endif 785