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1/* SPDX-License-Identifier: GPL-2.0 */2 3/*4 * This file contains definitions from Hyper-V Hypervisor Top-Level Functional5 * Specification (TLFS):6 * https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs7 */8 9#ifndef _ASM_GENERIC_HYPERV_TLFS_H10#define _ASM_GENERIC_HYPERV_TLFS_H11 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 size18 * of 4096. These definitions are used when communicating with Hyper-V using19 * guest physical pages and guest physical page addresses, since the guest page20 * size may not be 4096 on all architectures.21 */22#define HV_HYP_PAGE_SHIFT 1223#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. The28 * "Features" category indicates specific functionality that is available29 * 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 A31 * 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 the35 * architecture specific portion of hyperv-tlfs.h. Some of these flags exist36 * on multiple architectures, but the bit positions are different so they37 * cannot appear in the generic portion of hyperv-tlfs.h.38 *39 * The "Enlightenments" category provides recommendations on whether to use40 * specific enlightenments that are available. The Enlighenments are a single41 * group of 32 bits, but they vary across architectures and are listed in42 * 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 */98struct 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 105union 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 is117 * specified in the Hyper-V specification:118 *119 * msdn.microsoft.com/en-us/library/windows/hardware/ff542653%28v=vs.85%29.aspx120 *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 for123 * Linux and other guest operating systems that currently are hosted124 * on Hyper-V. The implementation here conforms to this yet125 * unpublished guidelines.126 *127 *128 * Bit(s)129 * 63 - Indicates if the OS is Open Source or not; 1 is Open Source130 * 62:56 - Os Type; Linux is 0x100131 * 55:48 - Distro specific identification132 * 47:16 - Linux kernel version number133 * 15:0 - Distro specific identification134 *135 *136 */137 138#define HV_LINUX_VENDOR_ID 0x8100139 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 0x0002148#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003149#define HVCALL_ENABLE_VP_VTL 0x000f150#define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008151#define HVCALL_SEND_IPI 0x000b152#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013153#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX 0x0014154#define HVCALL_SEND_IPI_EX 0x0015155#define HVCALL_GET_PARTITION_ID 0x0046156#define HVCALL_DEPOSIT_MEMORY 0x0048157#define HVCALL_CREATE_VP 0x004e158#define HVCALL_GET_VP_REGISTERS 0x0050159#define HVCALL_SET_VP_REGISTERS 0x0051160#define HVCALL_POST_MESSAGE 0x005c161#define HVCALL_SIGNAL_EVENT 0x005d162#define HVCALL_POST_DEBUG_DATA 0x0069163#define HVCALL_RETRIEVE_DEBUG_DATA 0x006a164#define HVCALL_RESET_DEBUG_SESSION 0x006b165#define HVCALL_ADD_LOGICAL_PROCESSOR 0x0076166#define HVCALL_MAP_DEVICE_INTERRUPT 0x007c167#define HVCALL_UNMAP_DEVICE_INTERRUPT 0x007d168#define HVCALL_RETARGET_INTERRUPT 0x007e169#define HVCALL_START_VP 0x0099170#define HVCALL_GET_VP_ID_FROM_APIC_ID 0x009a171#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af172#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0173#define HVCALL_MODIFY_SPARSE_GPA_PAGE_HOST_VISIBILITY 0x00db174#define HVCALL_MMIO_READ 0x0106175#define HVCALL_MMIO_WRITE 0x0107176 177/* Extended hypercalls */178#define HV_EXT_CALL_QUERY_CAPABILITIES 0x8001179#define HV_EXT_CALL_MEMORY_HEAT_HINT 0x8003180 181#define HV_FLUSH_ALL_PROCESSORS BIT(0)182#define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1)183#define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2)184#define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3)185 186/* Extended capability bits */187#define HV_EXT_CAPABILITY_MEMORY_COLD_DISCARD_HINT BIT(8)188 189enum HV_GENERIC_SET_FORMAT {190 HV_GENERIC_SET_SPARSE_4K,191 HV_GENERIC_SET_ALL,192};193 194#define HV_PARTITION_ID_SELF ((u64)-1)195#define HV_VP_INDEX_SELF ((u32)-2)196 197#define HV_HYPERCALL_RESULT_MASK GENMASK_ULL(15, 0)198#define HV_HYPERCALL_FAST_BIT BIT(16)199#define HV_HYPERCALL_VARHEAD_OFFSET 17200#define HV_HYPERCALL_VARHEAD_MASK GENMASK_ULL(26, 17)201#define HV_HYPERCALL_RSVD0_MASK GENMASK_ULL(31, 27)202#define HV_HYPERCALL_NESTED BIT_ULL(31)203#define HV_HYPERCALL_REP_COMP_OFFSET 32204#define HV_HYPERCALL_REP_COMP_1 BIT_ULL(32)205#define HV_HYPERCALL_REP_COMP_MASK GENMASK_ULL(43, 32)206#define HV_HYPERCALL_RSVD1_MASK GENMASK_ULL(47, 44)207#define HV_HYPERCALL_REP_START_OFFSET 48208#define HV_HYPERCALL_REP_START_MASK GENMASK_ULL(59, 48)209#define HV_HYPERCALL_RSVD2_MASK GENMASK_ULL(63, 60)210#define HV_HYPERCALL_RSVD_MASK (HV_HYPERCALL_RSVD0_MASK | \211 HV_HYPERCALL_RSVD1_MASK | \212 HV_HYPERCALL_RSVD2_MASK)213 214/* hypercall status code */215#define HV_STATUS_SUCCESS 0216#define HV_STATUS_INVALID_HYPERCALL_CODE 2217#define HV_STATUS_INVALID_HYPERCALL_INPUT 3218#define HV_STATUS_INVALID_ALIGNMENT 4219#define HV_STATUS_INVALID_PARAMETER 5220#define HV_STATUS_ACCESS_DENIED 6221#define HV_STATUS_OPERATION_DENIED 8222#define HV_STATUS_INSUFFICIENT_MEMORY 11223#define HV_STATUS_INVALID_PORT_ID 17224#define HV_STATUS_INVALID_CONNECTION_ID 18225#define HV_STATUS_INSUFFICIENT_BUFFERS 19226#define HV_STATUS_TIME_OUT 120227#define HV_STATUS_VTL_ALREADY_ENABLED 134228 229/*230 * The Hyper-V TimeRefCount register and the TSC231 * page provide a guest VM clock with 100ns tick rate232 */233#define HV_CLOCK_HZ (NSEC_PER_SEC/100)234 235/* Define the number of synthetic interrupt sources. */236#define HV_SYNIC_SINT_COUNT (16)237/* Define the expected SynIC version. */238#define HV_SYNIC_VERSION_1 (0x1)239/* Valid SynIC vectors are 16-255. */240#define HV_SYNIC_FIRST_VALID_VECTOR (16)241 242#define HV_SYNIC_CONTROL_ENABLE (1ULL << 0)243#define HV_SYNIC_SIMP_ENABLE (1ULL << 0)244#define HV_SYNIC_SIEFP_ENABLE (1ULL << 0)245#define HV_SYNIC_SINT_MASKED (1ULL << 16)246#define HV_SYNIC_SINT_AUTO_EOI (1ULL << 17)247#define HV_SYNIC_SINT_VECTOR_MASK (0xFF)248 249#define HV_SYNIC_STIMER_COUNT (4)250 251/* Define synthetic interrupt controller message constants. */252#define HV_MESSAGE_SIZE (256)253#define HV_MESSAGE_PAYLOAD_BYTE_COUNT (240)254#define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30)255 256/*257 * Define hypervisor message types. Some of the message types258 * are x86/x64 specific, but there's no good way to separate259 * them out into the arch-specific version of hyperv-tlfs.h260 * because C doesn't provide a way to extend enum types.261 * Keeping them all in the arch neutral hyperv-tlfs.h seems262 * the least messy compromise.263 */264enum hv_message_type {265 HVMSG_NONE = 0x00000000,266 267 /* Memory access messages. */268 HVMSG_UNMAPPED_GPA = 0x80000000,269 HVMSG_GPA_INTERCEPT = 0x80000001,270 271 /* Timer notification messages. */272 HVMSG_TIMER_EXPIRED = 0x80000010,273 274 /* Error messages. */275 HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020,276 HVMSG_UNRECOVERABLE_EXCEPTION = 0x80000021,277 HVMSG_UNSUPPORTED_FEATURE = 0x80000022,278 279 /* Trace buffer complete messages. */280 HVMSG_EVENTLOG_BUFFERCOMPLETE = 0x80000040,281 282 /* Platform-specific processor intercept messages. */283 HVMSG_X64_IOPORT_INTERCEPT = 0x80010000,284 HVMSG_X64_MSR_INTERCEPT = 0x80010001,285 HVMSG_X64_CPUID_INTERCEPT = 0x80010002,286 HVMSG_X64_EXCEPTION_INTERCEPT = 0x80010003,287 HVMSG_X64_APIC_EOI = 0x80010004,288 HVMSG_X64_LEGACY_FP_ERROR = 0x80010005289};290 291/* Define synthetic interrupt controller message flags. */292union hv_message_flags {293 __u8 asu8;294 struct {295 __u8 msg_pending:1;296 __u8 reserved:7;297 } __packed;298};299 300/* Define port identifier type. */301union hv_port_id {302 __u32 asu32;303 struct {304 __u32 id:24;305 __u32 reserved:8;306 } __packed u;307};308 309/* Define synthetic interrupt controller message header. */310struct hv_message_header {311 __u32 message_type;312 __u8 payload_size;313 union hv_message_flags message_flags;314 __u8 reserved[2];315 union {316 __u64 sender;317 union hv_port_id port;318 };319} __packed;320 321/* Define synthetic interrupt controller message format. */322struct hv_message {323 struct hv_message_header header;324 union {325 __u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];326 } u;327} __packed;328 329/* Define the synthetic interrupt message page layout. */330struct hv_message_page {331 struct hv_message sint_message[HV_SYNIC_SINT_COUNT];332} __packed;333 334/* Define timer message payload structure. */335struct hv_timer_message_payload {336 __u32 timer_index;337 __u32 reserved;338 __u64 expiration_time; /* When the timer expired */339 __u64 delivery_time; /* When the message was delivered */340} __packed;341 342 343/* Define synthetic interrupt controller flag constants. */344#define HV_EVENT_FLAGS_COUNT (256 * 8)345#define HV_EVENT_FLAGS_LONG_COUNT (256 / sizeof(unsigned long))346 347/*348 * Synthetic timer configuration.349 */350union hv_stimer_config {351 u64 as_uint64;352 struct {353 u64 enable:1;354 u64 periodic:1;355 u64 lazy:1;356 u64 auto_enable:1;357 u64 apic_vector:8;358 u64 direct_mode:1;359 u64 reserved_z0:3;360 u64 sintx:4;361 u64 reserved_z1:44;362 } __packed;363};364 365 366/* Define the synthetic interrupt controller event flags format. */367union hv_synic_event_flags {368 unsigned long flags[HV_EVENT_FLAGS_LONG_COUNT];369};370 371/* Define SynIC control register. */372union hv_synic_scontrol {373 u64 as_uint64;374 struct {375 u64 enable:1;376 u64 reserved:63;377 } __packed;378};379 380/* Define synthetic interrupt source. */381union hv_synic_sint {382 u64 as_uint64;383 struct {384 u64 vector:8;385 u64 reserved1:8;386 u64 masked:1;387 u64 auto_eoi:1;388 u64 polling:1;389 u64 reserved2:45;390 } __packed;391};392 393/* Define the format of the SIMP register */394union hv_synic_simp {395 u64 as_uint64;396 struct {397 u64 simp_enabled:1;398 u64 preserved:11;399 u64 base_simp_gpa:52;400 } __packed;401};402 403/* Define the format of the SIEFP register */404union hv_synic_siefp {405 u64 as_uint64;406 struct {407 u64 siefp_enabled:1;408 u64 preserved:11;409 u64 base_siefp_gpa:52;410 } __packed;411};412 413struct hv_vpset {414 u64 format;415 u64 valid_bank_mask;416 u64 bank_contents[];417} __packed;418 419/* The maximum number of sparse vCPU banks which can be encoded by 'struct hv_vpset' */420#define HV_MAX_SPARSE_VCPU_BANKS (64)421/* The number of vCPUs in one sparse bank */422#define HV_VCPUS_PER_SPARSE_BANK (64)423 424/* HvCallSendSyntheticClusterIpi hypercall */425struct hv_send_ipi {426 u32 vector;427 u32 reserved;428 u64 cpu_mask;429} __packed;430 431/* HvCallSendSyntheticClusterIpiEx hypercall */432struct hv_send_ipi_ex {433 u32 vector;434 u32 reserved;435 struct hv_vpset vp_set;436} __packed;437 438/* HvFlushGuestPhysicalAddressSpace hypercalls */439struct hv_guest_mapping_flush {440 u64 address_space;441 u64 flags;442} __packed;443 444/*445 * HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited446 * by the bitwidth of "additional_pages" in union hv_gpa_page_range.447 */448#define HV_MAX_FLUSH_PAGES (2048)449#define HV_GPA_PAGE_RANGE_PAGE_SIZE_2MB 0450#define HV_GPA_PAGE_RANGE_PAGE_SIZE_1GB 1451 452/* HvFlushGuestPhysicalAddressList, HvExtCallMemoryHeatHint hypercall */453union hv_gpa_page_range {454 u64 address_space;455 struct {456 u64 additional_pages:11;457 u64 largepage:1;458 u64 basepfn:52;459 } page;460 struct {461 u64 reserved:12;462 u64 page_size:1;463 u64 reserved1:8;464 u64 base_large_pfn:43;465 };466};467 468/*469 * All input flush parameters should be in single page. The max flush470 * count is equal with how many entries of union hv_gpa_page_range can471 * be populated into the input parameter page.472 */473#define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) / \474 sizeof(union hv_gpa_page_range))475 476struct hv_guest_mapping_flush_list {477 u64 address_space;478 u64 flags;479 union hv_gpa_page_range gpa_list[HV_MAX_FLUSH_REP_COUNT];480};481 482/* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */483struct hv_tlb_flush {484 u64 address_space;485 u64 flags;486 u64 processor_mask;487 u64 gva_list[];488} __packed;489 490/* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */491struct hv_tlb_flush_ex {492 u64 address_space;493 u64 flags;494 struct hv_vpset hv_vp_set;495 u64 gva_list[];496} __packed;497 498/* HvGetPartitionId hypercall (output only) */499struct hv_get_partition_id {500 u64 partition_id;501} __packed;502 503/* HvDepositMemory hypercall */504struct hv_deposit_memory {505 u64 partition_id;506 u64 gpa_page_list[];507} __packed;508 509struct hv_proximity_domain_flags {510 u32 proximity_preferred : 1;511 u32 reserved : 30;512 u32 proximity_info_valid : 1;513} __packed;514 515struct hv_proximity_domain_info {516 u32 domain_id;517 struct hv_proximity_domain_flags flags;518} __packed;519 520struct hv_lp_startup_status {521 u64 hv_status;522 u64 substatus1;523 u64 substatus2;524 u64 substatus3;525 u64 substatus4;526 u64 substatus5;527 u64 substatus6;528} __packed;529 530/* HvAddLogicalProcessor hypercall */531struct hv_input_add_logical_processor {532 u32 lp_index;533 u32 apic_id;534 struct hv_proximity_domain_info proximity_domain_info;535} __packed;536 537struct hv_output_add_logical_processor {538 struct hv_lp_startup_status startup_status;539} __packed;540 541enum HV_SUBNODE_TYPE542{543 HvSubnodeAny = 0,544 HvSubnodeSocket = 1,545 HvSubnodeAmdNode = 2,546 HvSubnodeL3 = 3,547 HvSubnodeCount = 4,548 HvSubnodeInvalid = -1549};550 551/* HvCreateVp hypercall */552struct hv_create_vp {553 u64 partition_id;554 u32 vp_index;555 u8 padding[3];556 u8 subnode_type;557 u64 subnode_id;558 struct hv_proximity_domain_info proximity_domain_info;559 u64 flags;560} __packed;561 562enum hv_interrupt_source {563 HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */564 HV_INTERRUPT_SOURCE_IOAPIC,565};566 567union hv_ioapic_rte {568 u64 as_uint64;569 570 struct {571 u32 vector:8;572 u32 delivery_mode:3;573 u32 destination_mode:1;574 u32 delivery_status:1;575 u32 interrupt_polarity:1;576 u32 remote_irr:1;577 u32 trigger_mode:1;578 u32 interrupt_mask:1;579 u32 reserved1:15;580 581 u32 reserved2:24;582 u32 destination_id:8;583 };584 585 struct {586 u32 low_uint32;587 u32 high_uint32;588 };589} __packed;590 591struct hv_interrupt_entry {592 u32 source;593 u32 reserved1;594 union {595 union hv_msi_entry msi_entry;596 union hv_ioapic_rte ioapic_rte;597 };598} __packed;599 600/*601 * flags for hv_device_interrupt_target.flags602 */603#define HV_DEVICE_INTERRUPT_TARGET_MULTICAST 1604#define HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET 2605 606struct hv_device_interrupt_target {607 u32 vector;608 u32 flags;609 union {610 u64 vp_mask;611 struct hv_vpset vp_set;612 };613} __packed;614 615struct hv_retarget_device_interrupt {616 u64 partition_id; /* use "self" */617 u64 device_id;618 struct hv_interrupt_entry int_entry;619 u64 reserved2;620 struct hv_device_interrupt_target int_target;621} __packed __aligned(8);622 623/*624 * These Hyper-V registers provide information equivalent to the CPUID625 * instruction on x86/x64.626 */627#define HV_REGISTER_HYPERVISOR_VERSION 0x00000100 /*CPUID 0x40000002 */628#define HV_REGISTER_FEATURES 0x00000200 /*CPUID 0x40000003 */629#define HV_REGISTER_ENLIGHTENMENTS 0x00000201 /*CPUID 0x40000004 */630 631/*632 * Synthetic register definitions equivalent to MSRs on x86/x64633 */634#define HV_REGISTER_GUEST_CRASH_P0 0x00000210635#define HV_REGISTER_GUEST_CRASH_P1 0x00000211636#define HV_REGISTER_GUEST_CRASH_P2 0x00000212637#define HV_REGISTER_GUEST_CRASH_P3 0x00000213638#define HV_REGISTER_GUEST_CRASH_P4 0x00000214639#define HV_REGISTER_GUEST_CRASH_CTL 0x00000215640 641#define HV_REGISTER_GUEST_OS_ID 0x00090002642#define HV_REGISTER_VP_INDEX 0x00090003643#define HV_REGISTER_TIME_REF_COUNT 0x00090004644#define HV_REGISTER_REFERENCE_TSC 0x00090017645 646#define HV_REGISTER_SINT0 0x000A0000647#define HV_REGISTER_SCONTROL 0x000A0010648#define HV_REGISTER_SIEFP 0x000A0012649#define HV_REGISTER_SIMP 0x000A0013650#define HV_REGISTER_EOM 0x000A0014651 652#define HV_REGISTER_STIMER0_CONFIG 0x000B0000653#define HV_REGISTER_STIMER0_COUNT 0x000B0001654 655/* HvGetVpRegisters hypercall input with variable size reg name list*/656struct hv_get_vp_registers_input {657 struct {658 u64 partitionid;659 u32 vpindex;660 u8 inputvtl;661 u8 padding[3];662 } header;663 struct input {664 u32 name0;665 u32 name1;666 } element[];667} __packed;668 669/* HvGetVpRegisters returns an array of these output elements */670struct hv_get_vp_registers_output {671 union {672 struct {673 u32 a;674 u32 b;675 u32 c;676 u32 d;677 } as32 __packed;678 struct {679 u64 low;680 u64 high;681 } as64 __packed;682 };683};684 685/* HvSetVpRegisters hypercall with variable size reg name/value list*/686struct hv_set_vp_registers_input {687 struct {688 u64 partitionid;689 u32 vpindex;690 u8 inputvtl;691 u8 padding[3];692 } header;693 struct {694 u32 name;695 u32 padding1;696 u64 padding2;697 u64 valuelow;698 u64 valuehigh;699 } element[];700} __packed;701 702enum hv_device_type {703 HV_DEVICE_TYPE_LOGICAL = 0,704 HV_DEVICE_TYPE_PCI = 1,705 HV_DEVICE_TYPE_IOAPIC = 2,706 HV_DEVICE_TYPE_ACPI = 3,707};708 709typedef u16 hv_pci_rid;710typedef u16 hv_pci_segment;711typedef u64 hv_logical_device_id;712union hv_pci_bdf {713 u16 as_uint16;714 715 struct {716 u8 function:3;717 u8 device:5;718 u8 bus;719 };720} __packed;721 722union hv_pci_bus_range {723 u16 as_uint16;724 725 struct {726 u8 subordinate_bus;727 u8 secondary_bus;728 };729} __packed;730 731union hv_device_id {732 u64 as_uint64;733 734 struct {735 u64 reserved0:62;736 u64 device_type:2;737 };738 739 /* HV_DEVICE_TYPE_LOGICAL */740 struct {741 u64 id:62;742 u64 device_type:2;743 } logical;744 745 /* HV_DEVICE_TYPE_PCI */746 struct {747 union {748 hv_pci_rid rid;749 union hv_pci_bdf bdf;750 };751 752 hv_pci_segment segment;753 union hv_pci_bus_range shadow_bus_range;754 755 u16 phantom_function_bits:2;756 u16 source_shadow:1;757 758 u16 rsvdz0:11;759 u16 device_type:2;760 } pci;761 762 /* HV_DEVICE_TYPE_IOAPIC */763 struct {764 u8 ioapic_id;765 u8 rsvdz0;766 u16 rsvdz1;767 u16 rsvdz2;768 769 u16 rsvdz3:14;770 u16 device_type:2;771 } ioapic;772 773 /* HV_DEVICE_TYPE_ACPI */774 struct {775 u32 input_mapping_base;776 u32 input_mapping_count:30;777 u32 device_type:2;778 } acpi;779} __packed;780 781enum hv_interrupt_trigger_mode {782 HV_INTERRUPT_TRIGGER_MODE_EDGE = 0,783 HV_INTERRUPT_TRIGGER_MODE_LEVEL = 1,784};785 786struct hv_device_interrupt_descriptor {787 u32 interrupt_type;788 u32 trigger_mode;789 u32 vector_count;790 u32 reserved;791 struct hv_device_interrupt_target target;792} __packed;793 794struct hv_input_map_device_interrupt {795 u64 partition_id;796 u64 device_id;797 u64 flags;798 struct hv_interrupt_entry logical_interrupt_entry;799 struct hv_device_interrupt_descriptor interrupt_descriptor;800} __packed;801 802struct hv_output_map_device_interrupt {803 struct hv_interrupt_entry interrupt_entry;804} __packed;805 806struct hv_input_unmap_device_interrupt {807 u64 partition_id;808 u64 device_id;809 struct hv_interrupt_entry interrupt_entry;810} __packed;811 812#define HV_SOURCE_SHADOW_NONE 0x0813#define HV_SOURCE_SHADOW_BRIDGE_BUS_RANGE 0x1814 815/*816 * Version info reported by hypervisor817 */818union hv_hypervisor_version_info {819 struct {820 u32 build_number;821 822 u32 minor_version : 16;823 u32 major_version : 16;824 825 u32 service_pack;826 827 u32 service_number : 24;828 u32 service_branch : 8;829 };830 struct {831 u32 eax;832 u32 ebx;833 u32 ecx;834 u32 edx;835 };836};837 838/*839 * The whole argument should fit in a page to be able to pass to the hypervisor840 * in one hypercall.841 */842#define HV_MEMORY_HINT_MAX_GPA_PAGE_RANGES \843 ((HV_HYP_PAGE_SIZE - sizeof(struct hv_memory_hint)) / \844 sizeof(union hv_gpa_page_range))845 846/* HvExtCallMemoryHeatHint hypercall */847#define HV_EXT_MEMORY_HEAT_HINT_TYPE_COLD_DISCARD 2848struct hv_memory_hint {849 u64 type:2;850 u64 reserved:62;851 union hv_gpa_page_range ranges[];852} __packed;853 854/* Data structures for HVCALL_MMIO_READ and HVCALL_MMIO_WRITE */855#define HV_HYPERCALL_MMIO_MAX_DATA_LENGTH 64856 857struct hv_mmio_read_input {858 u64 gpa;859 u32 size;860 u32 reserved;861} __packed;862 863struct hv_mmio_read_output {864 u8 data[HV_HYPERCALL_MMIO_MAX_DATA_LENGTH];865} __packed;866 867struct hv_mmio_write_input {868 u64 gpa;869 u32 size;870 u32 reserved;871 u8 data[HV_HYPERCALL_MMIO_MAX_DATA_LENGTH];872} __packed;873 874#endif875