Add definitions needed for privileged Hyper-V partitions.

These files are derived from headers exported from the hypervisor code.
This is a step toward importing headers directly, similar to Xen public
files in include/xen/interface/.

Signed-off-by: Nuno Das Neves <nunodasne...@linux.microsoft.com>
---
 include/hyperv/hvgdk.h      |   66 ++
 include/hyperv/hvgdk_ext.h  |   46 ++
 include/hyperv/hvgdk_mini.h | 1212 +++++++++++++++++++++++++++++++++++
 include/hyperv/hvhdk.h      |  733 +++++++++++++++++++++
 include/hyperv/hvhdk_mini.h |  310 +++++++++
 5 files changed, 2367 insertions(+)
 create mode 100644 include/hyperv/hvgdk.h
 create mode 100644 include/hyperv/hvgdk_ext.h
 create mode 100644 include/hyperv/hvgdk_mini.h
 create mode 100644 include/hyperv/hvhdk.h
 create mode 100644 include/hyperv/hvhdk_mini.h

diff --git a/include/hyperv/hvgdk.h b/include/hyperv/hvgdk.h
new file mode 100644
index 000000000000..af44e8034090
--- /dev/null
+++ b/include/hyperv/hvgdk.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Type definitions for the Microsoft Hypervisor.
+ */
+#ifndef _HV_HVGDK_H
+#define _HV_HVGDK_H
+
+#include "hvgdk_mini.h"
+#include "hvgdk_ext.h"
+
+/*
+ * The guest OS needs to register the guest ID with the hypervisor.
+ * The guest ID is a 64 bit entity and the structure of this ID is
+ * specified in the Hyper-V TLFS specification.
+ *
+ * While the current guideline does not specify how Linux guest ID(s)
+ * need to be generated, our plan is to publish the guidelines for
+ * Linux and other guest operating systems that currently are hosted
+ * on Hyper-V. The implementation here conforms to this yet
+ * unpublished guidelines.
+ *
+ * Bit(s)
+ * 63 - Indicates if the OS is Open Source or not; 1 is Open Source
+ * 62:56 - Os Type; Linux is 0x100
+ * 55:48 - Distro specific identification
+ * 47:16 - Linux kernel version number
+ * 15:0  - Distro specific identification
+ */
+
+#define HV_LINUX_VENDOR_ID              0x8100
+
+/*
+ * Hyper-V uses the software reserved 32 bytes in VMCB control area to expose
+ * SVM enlightenments to guests. This is documented in the TLFS doc.
+ * HV_VMX_ENLIGHTENED_VMCS or SVM_NESTED_ENLIGHTENED_VMCB_FIELDS
+ */
+struct hv_vmcb_enlightenments {
+       struct __packed hv_enlightenments_control {
+               u32 nested_flush_hypercall : 1;
+               u32 msr_bitmap : 1;
+               u32 enlightened_npt_tlb: 1;
+               u32 reserved : 29;
+       } __packed hv_enlightenments_control;
+       u32 hv_vp_id;
+       u64 hv_vm_id;
+       u64 partition_assist_page;
+       u64 reserved;
+} __packed;
+
+/* Define connection identifier type. */
+union hv_connection_id {
+       u32 asu32;
+       struct {
+               u32 id : 24;
+               u32 reserved : 8;
+       } __packed u;
+};
+
+struct hv_input_unmap_gpa_pages {
+       u64 target_partition_id;
+       u64 target_gpa_base;
+       u32 unmap_flags;
+       u32 padding;
+} __packed;
+
+#endif /* #ifndef _HV_HVGDK_H */
diff --git a/include/hyperv/hvgdk_ext.h b/include/hyperv/hvgdk_ext.h
new file mode 100644
index 000000000000..641b591ee61f
--- /dev/null
+++ b/include/hyperv/hvgdk_ext.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Type definitions for the Microsoft Hypervisor.
+ */
+#ifndef _HV_HVGDK_EXT_H
+#define _HV_HVGDK_EXT_H
+
+#include "hvgdk_mini.h"
+
+/* Extended hypercalls */
+#define HV_EXT_CALL_QUERY_CAPABILITIES         0x8001
+#define HV_EXT_CALL_MEMORY_HEAT_HINT           0x8003
+
+/* Extended hypercalls */
+enum {         /* HV_EXT_CALL */
+       HV_EXTCALL_QUERY_CAPABILITIES = 0x8001,
+       HV_EXTCALL_MEMORY_HEAT_HINT   = 0x8003,
+};
+
+/* HV_EXT_OUTPUT_QUERY_CAPABILITIES */
+#define HV_EXT_CAPABILITY_MEMORY_COLD_DISCARD_HINT BIT(8)
+
+enum {         /* HV_EXT_MEMORY_HEAT_HINT_TYPE */
+       HV_EXTMEM_HEAT_HINT_COLD = 0,
+       HV_EXTMEM_HEAT_HINT_HOT = 1,
+       HV_EXTMEM_HEAT_HINT_COLD_DISCARD = 2,
+       HV_EXTMEM_HEAT_HINT_MAX
+};
+
+/*
+ * The whole argument should fit in a page to be able to pass to the hypervisor
+ * in one hypercall.
+ */
+#define HV_MEMORY_HINT_MAX_GPA_PAGE_RANGES  \
+       ((HV_HYP_PAGE_SIZE - sizeof(struct hv_memory_hint)) / \
+               sizeof(union hv_gpa_page_range))
+
+/* HvExtCallMemoryHeatHint hypercall */
+#define HV_EXT_MEMORY_HEAT_HINT_TYPE_COLD_DISCARD      2
+struct hv_memory_hint {                /* HV_EXT_INPUT_MEMORY_HEAT_HINT */
+       u64 heat_type : 2;      /* HV_EXTMEM_HEAT_HINT_* */
+       u64 reserved : 62;
+       union hv_gpa_page_range ranges[];
+} __packed;
+
+#endif /* _HV_HVGDK_EXT_H */
diff --git a/include/hyperv/hvgdk_mini.h b/include/hyperv/hvgdk_mini.h
new file mode 100644
index 000000000000..b7dd22784c96
--- /dev/null
+++ b/include/hyperv/hvgdk_mini.h
@@ -0,0 +1,1212 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Type definitions for the Microsoft hypervisor.
+ */
+#ifndef _HV_HVGDK_MINI_H
+#define _HV_HVGDK_MINI_H
+
+#include <linux/types.h>
+#include <linux/bits.h>
+
+struct hv_u128 {
+       u64 low_part;
+       u64 high_part;
+} __packed;
+
+/* NOTE: when adding below, update hv_status_to_string() */
+#define HV_STATUS_SUCCESS                          0x0
+#define HV_STATUS_INVALID_HYPERCALL_CODE           0x2
+#define HV_STATUS_INVALID_HYPERCALL_INPUT          0x3
+#define HV_STATUS_INVALID_ALIGNMENT                0x4
+#define HV_STATUS_INVALID_PARAMETER                0x5
+#define HV_STATUS_ACCESS_DENIED                            0x6
+#define HV_STATUS_INVALID_PARTITION_STATE          0x7
+#define HV_STATUS_OPERATION_DENIED                 0x8
+#define HV_STATUS_UNKNOWN_PROPERTY                 0x9
+#define HV_STATUS_PROPERTY_VALUE_OUT_OF_RANGE      0xA
+#define HV_STATUS_INSUFFICIENT_MEMORY              0xB
+#define HV_STATUS_INVALID_PARTITION_ID             0xD
+#define HV_STATUS_INVALID_VP_INDEX                 0xE
+#define HV_STATUS_NOT_FOUND                        0x10
+#define HV_STATUS_INVALID_PORT_ID                  0x11
+#define HV_STATUS_INVALID_CONNECTION_ID                    0x12
+#define HV_STATUS_INSUFFICIENT_BUFFERS             0x13
+#define HV_STATUS_NOT_ACKNOWLEDGED                 0x14
+#define HV_STATUS_INVALID_VP_STATE                 0x15
+#define HV_STATUS_NO_RESOURCES                     0x1D
+#define HV_STATUS_PROCESSOR_FEATURE_NOT_SUPPORTED   0x20
+#define HV_STATUS_INVALID_LP_INDEX                 0x41
+#define HV_STATUS_INVALID_REGISTER_VALUE           0x50
+#define HV_STATUS_OPERATION_FAILED                 0x71
+#define HV_STATUS_TIME_OUT                         0x78
+#define HV_STATUS_CALL_PENDING                     0x79
+#define HV_STATUS_VTL_ALREADY_ENABLED              0x86
+
+/*
+ * The Hyper-V TimeRefCount register and the TSC
+ * page provide a guest VM clock with 100ns tick rate
+ */
+#define HV_CLOCK_HZ (NSEC_PER_SEC / 100)
+
+#define HV_HYP_PAGE_SHIFT              12
+#define HV_HYP_PAGE_SIZE               BIT(HV_HYP_PAGE_SHIFT)
+#define HV_HYP_PAGE_MASK               (~(HV_HYP_PAGE_SIZE - 1))
+
+#define HV_PARTITION_ID_INVALID                ((u64)0)
+#define HV_PARTITION_ID_SELF           ((u64)-1)
+
+/* Hyper-V specific model specific registers (MSRs) */
+
+#if defined(CONFIG_X86)
+/* HV_X64_SYNTHETIC_MSR */
+#define HV_X64_MSR_GUEST_OS_ID                 0x40000000
+#define HV_X64_MSR_HYPERCALL                   0x40000001
+#define HV_X64_MSR_VP_INDEX                    0x40000002
+#define HV_X64_MSR_RESET                       0x40000003
+#define HV_X64_MSR_VP_RUNTIME                  0x40000010
+#define HV_X64_MSR_TIME_REF_COUNT              0x40000020
+#define HV_X64_MSR_REFERENCE_TSC               0x40000021
+#define HV_X64_MSR_TSC_FREQUENCY               0x40000022
+#define HV_X64_MSR_APIC_FREQUENCY              0x40000023
+
+/* Define the virtual APIC registers */
+#define HV_X64_MSR_EOI                         0x40000070
+#define HV_X64_MSR_ICR                         0x40000071
+#define HV_X64_MSR_TPR                         0x40000072
+#define HV_X64_MSR_VP_ASSIST_PAGE              0x40000073
+
+/* Note: derived, not in hvgdk_mini.h */
+#define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE       0x00000001
+#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT        12
+#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK \
+               (~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
+
+/* Define synthetic interrupt controller model specific registers. */
+#define HV_X64_MSR_SCONTROL                    0x40000080
+#define HV_X64_MSR_SVERSION                    0x40000081
+#define HV_X64_MSR_SIEFP                       0x40000082
+#define HV_X64_MSR_SIMP                                0x40000083
+#define HV_X64_MSR_EOM                         0x40000084
+#define HV_X64_MSR_SIRBP                       0x40000085
+#define HV_X64_MSR_SINT0                       0x40000090
+#define HV_X64_MSR_SINT1                       0x40000091
+#define HV_X64_MSR_SINT2                       0x40000092
+#define HV_X64_MSR_SINT3                       0x40000093
+#define HV_X64_MSR_SINT4                       0x40000094
+#define HV_X64_MSR_SINT5                       0x40000095
+#define HV_X64_MSR_SINT6                       0x40000096
+#define HV_X64_MSR_SINT7                       0x40000097
+#define HV_X64_MSR_SINT8                       0x40000098
+#define HV_X64_MSR_SINT9                       0x40000099
+#define HV_X64_MSR_SINT10                      0x4000009A
+#define HV_X64_MSR_SINT11                      0x4000009B
+#define HV_X64_MSR_SINT12                      0x4000009C
+#define HV_X64_MSR_SINT13                      0x4000009D
+#define HV_X64_MSR_SINT14                      0x4000009E
+#define HV_X64_MSR_SINT15                      0x4000009F
+
+/* Define synthetic interrupt controller model specific registers for nested 
hypervisor */
+#define HV_X64_MSR_NESTED_SCONTROL             0x40001080
+#define HV_X64_MSR_NESTED_SVERSION             0x40001081
+#define HV_X64_MSR_NESTED_SIEFP                        0x40001082
+#define HV_X64_MSR_NESTED_SIMP                 0x40001083
+#define HV_X64_MSR_NESTED_EOM                  0x40001084
+#define HV_X64_MSR_NESTED_SINT0                        0x40001090
+
+/*
+ * Synthetic Timer MSRs. Four timers per vcpu.
+ */
+#define HV_X64_MSR_STIMER0_CONFIG              0x400000B0
+#define HV_X64_MSR_STIMER0_COUNT               0x400000B1
+#define HV_X64_MSR_STIMER1_CONFIG              0x400000B2
+#define HV_X64_MSR_STIMER1_COUNT               0x400000B3
+#define HV_X64_MSR_STIMER2_CONFIG              0x400000B4
+#define HV_X64_MSR_STIMER2_COUNT               0x400000B5
+#define HV_X64_MSR_STIMER3_CONFIG              0x400000B6
+#define HV_X64_MSR_STIMER3_COUNT               0x400000B7
+
+/* Hyper-V guest idle MSR */
+#define HV_X64_MSR_GUEST_IDLE                  0x400000F0
+
+/* Hyper-V guest crash notification MSR's */
+#define HV_X64_MSR_CRASH_P0                    0x40000100
+#define HV_X64_MSR_CRASH_P1                    0x40000101
+#define HV_X64_MSR_CRASH_P2                    0x40000102
+#define HV_X64_MSR_CRASH_P3                    0x40000103
+#define HV_X64_MSR_CRASH_P4                    0x40000104
+#define HV_X64_MSR_CRASH_CTL                   0x40000105
+
+/* NOTE: derived, not in hvgdk_mini.h */
+#define HV_X64_MSR_CRASH_PARAMS                \
+               (1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0))
+
+#define HV_IPI_LOW_VECTOR       0x10
+#define HV_IPI_HIGH_VECTOR      0xff
+
+struct hv_reenlightenment_control {
+       u64 vector : 8;
+       u64 reserved1 : 8;
+       u64 enabled : 1;
+       u64 reserved2 : 15;
+       u64 target_vp : 32;
+}  __packed;
+
+struct hv_tsc_emulation_status {        /* HV_TSC_EMULATION_STATUS */
+       u64 inprogress : 1;
+       u64 reserved : 63;
+} __packed;
+
+struct hv_tsc_emulation_control {       /* HV_TSC_INVARIANT_CONTROL */
+       u64 enabled : 1;
+       u64 reserved : 63;
+} __packed;
+
+/* TSC emulation after migration */
+#define HV_X64_MSR_REENLIGHTENMENT_CONTROL     0x40000106
+#define HV_X64_MSR_TSC_EMULATION_CONTROL       0x40000107
+#define HV_X64_MSR_TSC_EMULATION_STATUS                0x40000108
+#define HV_X64_MSR_TSC_INVARIANT_CONTROL       0x40000118
+#define HV_EXPOSE_INVARIANT_TSC                BIT_ULL(0)
+
+#endif /* CONFIG_X86 */
+
+struct hv_get_partition_id {    /* HV_OUTPUT_GET_PARTITION_ID */
+       u64 partition_id;
+} __packed;
+
+/* HV_CRASH_CTL_REG_CONTENTS */
+#define HV_CRASH_CTL_CRASH_NOTIFY_MSG           BIT_ULL(62)
+#define HV_CRASH_CTL_CRASH_NOTIFY               BIT_ULL(63)
+
+union hv_reference_tsc_msr {
+       u64 as_uint64;
+       struct {
+               u64 enable : 1;
+               u64 reserved : 11;
+               u64 pfn : 52;
+       } __packed;
+};
+
+/* The maximum number of sparse vCPU banks which can be encoded by 'struct 
hv_vpset' */
+#define HV_MAX_SPARSE_VCPU_BANKS (64)
+/* The number of vCPUs in one sparse bank */
+#define HV_VCPUS_PER_SPARSE_BANK (64)
+
+/* Some of Hyper-V structs do not use hv_vpset where linux uses them */
+struct hv_vpset {       /* HV_VP_SET */
+       u64 format;
+       u64 valid_bank_mask;
+       u64 bank_contents[];
+} __packed;
+
+/*
+ * Version info reported by hypervisor
+ * Changed to a union for convenience
+ */
+union hv_hypervisor_version_info {
+       struct {
+               u32 build_number;
+
+               u32 minor_version : 16;
+               u32 major_version : 16;
+
+               u32 service_pack;
+
+               u32 service_number : 24;
+               u32 service_branch : 8;
+       };
+       struct {
+               u32 eax;
+               u32 ebx;
+               u32 ecx;
+               u32 edx;
+       };
+};
+
+/* HV_CPUID_FUNCTION */
+#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS  0x40000000
+#define HYPERV_CPUID_INTERFACE                 0x40000001
+#define HYPERV_CPUID_VERSION                   0x40000002
+#define HYPERV_CPUID_FEATURES                  0x40000003
+#define HYPERV_CPUID_ENLIGHTMENT_INFO          0x40000004
+#define HYPERV_CPUID_IMPLEMENT_LIMITS          0x40000005
+#define HYPERV_CPUID_CPU_MANAGEMENT_FEATURES   0x40000007
+#define HYPERV_CPUID_NESTED_FEATURES           0x4000000A
+#define HYPERV_CPUID_ISOLATION_CONFIG          0x4000000C
+
+#define HYPERV_CPUID_VIRT_STACK_INTERFACE       0x40000081
+#define HYPERV_VS_INTERFACE_EAX_SIGNATURE       0x31235356  /* "VS#1" */
+
+#define HYPERV_CPUID_VIRT_STACK_PROPERTIES      0x40000082
+/* Support for the extended IOAPIC RTE format */
+#define HYPERV_VS_PROPERTIES_EAX_EXTENDED_IOAPIC_RTE    BIT(2)
+
+#define HYPERV_HYPERVISOR_PRESENT_BIT           0x80000000
+#define HYPERV_CPUID_MIN                        0x40000005
+#define HYPERV_CPUID_MAX                        0x4000ffff
+
+/* HV_PARTITION_PRIVILEGE_MASK */
+#define HV_MSR_VP_RUNTIME_AVAILABLE                    BIT(0)
+#define HV_MSR_TIME_REF_COUNT_AVAILABLE                        BIT(1)
+#define HV_MSR_SYNIC_AVAILABLE                         BIT(2)
+#define HV_MSR_SYNTIMER_AVAILABLE                      BIT(3)
+#define HV_MSR_APIC_ACCESS_AVAILABLE                   BIT(4)
+#define HV_MSR_HYPERCALL_AVAILABLE                     BIT(5)
+#define HV_MSR_VP_INDEX_AVAILABLE                      BIT(6)
+#define HV_MSR_RESET_AVAILABLE                         BIT(7)
+#define HV_MSR_STAT_PAGES_AVAILABLE                    BIT(8)
+#define HV_MSR_REFERENCE_TSC_AVAILABLE                 BIT(9)
+#define HV_MSR_GUEST_IDLE_AVAILABLE                    BIT(10)
+#define HV_ACCESS_FREQUENCY_MSRS                       BIT(11)
+#define HV_ACCESS_REENLIGHTENMENT                      BIT(13)
+#define HV_ACCESS_TSC_INVARIANT                                BIT(15)
+
+/* HV_PARTITION_PRIVILEGE_MASK */
+#define HV_CREATE_PARTITIONS                           BIT(0)
+#define HV_ACCESS_PARTITION_ID                         BIT(1)
+#define HV_ACCESS_MEMORY_POOL                          BIT(2)
+#define HV_ADJUST_MESSAGE_BUFFERS                      BIT(3)
+#define HV_POST_MESSAGES                               BIT(4)
+#define HV_SIGNAL_EVENTS                               BIT(5)
+#define HV_CREATE_PORT                                 BIT(6)
+#define HV_CONNECT_PORT                                        BIT(7)
+#define HV_ACCESS_STATS                                        BIT(8)
+#define HV_DEBUGGING                                   BIT(11)
+#define HV_CPU_MANAGEMENT                              BIT(12)
+#define HV_ENABLE_EXTENDED_HYPERCALLS                  BIT(20)
+#define HV_ISOLATION                                   BIT(22)
+
+#if defined(CONFIG_X86)
+/* HV_X64_HYPERVISOR_FEATURES (EDX) */
+#define HV_X64_MWAIT_AVAILABLE                         BIT(0)
+#define HV_X64_GUEST_DEBUGGING_AVAILABLE               BIT(1)
+#define HV_X64_PERF_MONITOR_AVAILABLE                  BIT(2)
+#define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE      BIT(3)
+#define HV_X64_HYPERCALL_XMM_INPUT_AVAILABLE           BIT(4)
+#define HV_X64_GUEST_IDLE_STATE_AVAILABLE              BIT(5)
+#define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE            BIT(8)
+#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE           BIT(10)
+#define HV_FEATURE_DEBUG_MSRS_AVAILABLE                        BIT(11)
+/*
+ * Support for returning hypercall output block via XMM
+ * registers is available
+ */
+#define HV_X64_HYPERCALL_XMM_OUTPUT_AVAILABLE          BIT(15)
+/* stimer Direct Mode is available */
+#define HV_STIMER_DIRECT_MODE_AVAILABLE                        BIT(19)
+
+/* HV_X64_ENLIGHTENMENT_INFORMATION */
+#define HV_X64_AS_SWITCH_RECOMMENDED                   BIT(0)
+#define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED             BIT(1)
+#define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED            BIT(2)
+#define HV_X64_APIC_ACCESS_RECOMMENDED                 BIT(3)
+#define HV_X64_SYSTEM_RESET_RECOMMENDED                        BIT(4)
+#define HV_X64_RELAXED_TIMING_RECOMMENDED              BIT(5)
+#define HV_DEPRECATING_AEOI_RECOMMENDED                        BIT(9)
+#define HV_X64_CLUSTER_IPI_RECOMMENDED                 BIT(10)
+#define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED          BIT(11)
+#define HV_X64_HYPERV_NESTED                           BIT(12)
+#define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED            BIT(14)
+#define HV_X64_USE_MMIO_HYPERCALLS                     BIT(21)
+
+/* HYPERV_CPUID_ISOLATION_CONFIG.EBX bits. */
+#define HV_ISOLATION_TYPE                              GENMASK(3, 0)
+#define HV_SHARED_GPA_BOUNDARY_ACTIVE                  BIT(5)
+#define HV_SHARED_GPA_BOUNDARY_BITS                    GENMASK(11, 6)
+
+/* HYPERV_CPUID_FEATURES.ECX bits. */
+#define HV_VP_DISPATCH_INTERRUPT_INJECTION_AVAILABLE   BIT(9)
+#define HV_VP_GHCB_ROOT_MAPPING_AVAILABLE              BIT(10)
+
+enum hv_isolation_type {
+       HV_ISOLATION_TYPE_NONE  = 0,    /* HV_PARTITION_ISOLATION_TYPE_NONE */
+       HV_ISOLATION_TYPE_VBS   = 1,
+       HV_ISOLATION_TYPE_SNP   = 2,
+       HV_ISOLATION_TYPE_TDX   = 3
+};
+
+union hv_x64_msr_hypercall_contents {
+       u64 as_uint64;
+       struct {
+               u64 enable : 1;
+               u64 reserved : 11;
+               u64 guest_physical_address : 52;
+       } __packed;
+};
+#endif /* CONFIG_X86 */
+
+#if defined(CONFIG_ARM64)
+#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE   BIT(8)
+#define HV_STIMER_DIRECT_MODE_AVAILABLE                BIT(13)
+#endif /* CONFIG_ARM64 */
+
+#if defined(CONFIG_X86)
+#define HV_MAXIMUM_PROCESSORS      2048
+#elif defined(CONFIG_ARM64) /* CONFIG_X86 */
+#define HV_MAXIMUM_PROCESSORS      320
+#endif /* CONFIG_ARM64 */
+
+#define HV_MAX_VP_INDEX                        (HV_MAXIMUM_PROCESSORS - 1)
+#define HV_VP_INDEX_SELF               ((u32)-2)
+#define HV_ANY_VP                      ((u32)-1)
+
+union hv_vp_assist_msr_contents {       /* HV_REGISTER_VP_ASSIST_PAGE */
+       u64 as_uint64;
+       struct {
+               u64 enable : 1;
+               u64 reserved : 11;
+               u64 pfn : 52;
+       } __packed;
+};
+
+/* Declare the various hypercall operations. */
+/* HV_CALL_CODE */
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE             0x0002
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST              0x0003
+#define HVCALL_NOTIFY_LONG_SPIN_WAIT                   0x0008
+#define HVCALL_SEND_IPI                                        0x000b
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX          0x0013
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX           0x0014
+#define HVCALL_SEND_IPI_EX                             0x0015
+#define HVCALL_CREATE_PARTITION                                0x0040
+#define HVCALL_INITIALIZE_PARTITION                    0x0041
+#define HVCALL_FINALIZE_PARTITION                      0x0042
+#define HVCALL_DELETE_PARTITION                                0x0043
+#define HVCALL_GET_PARTITION_PROPERTY                  0x0044
+#define HVCALL_SET_PARTITION_PROPERTY                  0x0045
+#define HVCALL_GET_PARTITION_ID                                0x0046
+#define HVCALL_DEPOSIT_MEMORY                          0x0048
+#define HVCALL_WITHDRAW_MEMORY                         0x0049
+#define HVCALL_MAP_GPA_PAGES                           0x004b
+#define HVCALL_UNMAP_GPA_PAGES                         0x004c
+#define HVCALL_CREATE_VP                               0x004e
+#define HVCALL_DELETE_VP                               0x004f
+#define HVCALL_GET_VP_REGISTERS                                0x0050
+#define HVCALL_SET_VP_REGISTERS                                0x0051
+#define HVCALL_DELETE_PORT                             0x0058
+#define HVCALL_DISCONNECT_PORT                         0x005b
+#define HVCALL_POST_MESSAGE                            0x005c
+#define HVCALL_SIGNAL_EVENT                            0x005d
+#define HVCALL_POST_DEBUG_DATA                         0x0069
+#define HVCALL_RETRIEVE_DEBUG_DATA                     0x006a
+#define HVCALL_RESET_DEBUG_SESSION                     0x006b
+#define HVCALL_ADD_LOGICAL_PROCESSOR                   0x0076
+#define HVCALL_GET_SYSTEM_PROPERTY                     0x007b
+#define HVCALL_MAP_DEVICE_INTERRUPT                    0x007c
+#define HVCALL_UNMAP_DEVICE_INTERRUPT                  0x007d
+#define HVCALL_RETARGET_INTERRUPT                      0x007e
+#define HVCALL_NOTIFY_PORT_RING_EMPTY                  0x008b
+#define HVCALL_ASSERT_VIRTUAL_INTERRUPT                        0x0094
+#define HVCALL_CREATE_PORT                             0x0095
+#define HVCALL_CONNECT_PORT                            0x0096
+#define HVCALL_START_VP                                        0x0099
+#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE      0x00af
+#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST       0x00b0
+#define HVCALL_DISPATCH_VP                             0x00c2
+#define HVCALL_MODIFY_SPARSE_GPA_PAGE_HOST_VISIBILITY  0x00db
+#define HVCALL_MAP_VP_STATE_PAGE                       0x00e1
+#define HVCALL_UNMAP_VP_STATE_PAGE                     0x00e2
+#define HVCALL_GET_VP_STATE                            0x00e3
+#define HVCALL_SET_VP_STATE                            0x00e4
+#define HVCALL_MMIO_READ                               0x0106
+#define HVCALL_MMIO_WRITE                              0x0107
+
+/* HV_HYPERCALL_INPUT */
+#define HV_HYPERCALL_RESULT_MASK       GENMASK_ULL(15, 0)
+#define HV_HYPERCALL_FAST_BIT          BIT(16)
+#define HV_HYPERCALL_VARHEAD_OFFSET    17
+#define HV_HYPERCALL_NESTED            BIT(31)
+#define HV_HYPERCALL_REP_COMP_OFFSET   32
+#define HV_HYPERCALL_REP_COMP_1                BIT_ULL(32)
+#define HV_HYPERCALL_REP_COMP_MASK     GENMASK_ULL(43, 32)
+#define HV_HYPERCALL_REP_START_OFFSET  48
+#define HV_HYPERCALL_REP_START_MASK    GENMASK_ULL(59, 48)
+
+/* HvFlushGuestPhysicalAddressSpace hypercalls */
+struct hv_guest_mapping_flush {
+       u64 address_space;
+       u64 flags;
+} __packed;
+
+/*
+ *  HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited
+ *  by the bitwidth of "additional_pages" in union hv_gpa_page_range.
+ */
+#define HV_MAX_FLUSH_PAGES (2048)
+#define HV_GPA_PAGE_RANGE_PAGE_SIZE_2MB                0
+#define HV_GPA_PAGE_RANGE_PAGE_SIZE_1GB                1
+
+#define HV_FLUSH_ALL_PROCESSORS                        BIT(0)
+#define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES    BIT(1)
+#define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY      BIT(2)
+#define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT     BIT(3)
+
+/* HvFlushGuestPhysicalAddressList, HvExtCallMemoryHeatHint hypercall */
+union hv_gpa_page_range {
+       u64 address_space;
+       struct {
+               u64 additional_pages : 11;
+               u64 largepage : 1;
+               u64 basepfn : 52;
+       } page;
+       struct {
+               u64 reserved : 12;
+               u64 page_size : 1;
+               u64 reserved1 : 8;
+               u64 base_large_pfn : 43;
+       };
+};
+
+/*
+ * All input flush parameters should be in single page. The max flush
+ * count is equal with how many entries of union hv_gpa_page_range can
+ * be populated into the input parameter page.
+ */
+#define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) / \
+                               sizeof(union hv_gpa_page_range))
+
+struct hv_guest_mapping_flush_list {
+       u64 address_space;
+       u64 flags;
+       union hv_gpa_page_range gpa_list[HV_MAX_FLUSH_REP_COUNT];
+};
+
+struct hv_tlb_flush {   /* HV_INPUT_FLUSH_VIRTUAL_ADDRESS_LIST */
+       u64 address_space;
+       u64 flags;
+       u64 processor_mask;
+       u64 gva_list[];
+} __packed;
+
+/* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */
+struct hv_tlb_flush_ex {
+       u64 address_space;
+       u64 flags;
+       struct hv_vpset hv_vp_set;
+       u64 gva_list[];
+} __packed;
+
+struct ms_hyperv_tsc_page {     /* HV_REFERENCE_TSC_PAGE */
+       volatile u32 tsc_sequence;
+       u32 reserved1;
+       volatile u64 tsc_scale;
+       volatile s64 tsc_offset;
+} __packed;
+
+/* Define the number of synthetic interrupt sources. */
+#define HV_SYNIC_SINT_COUNT (16)
+
+/* Hyper-V defined statically assigned SINTs */
+#define HV_SYNIC_INTERCEPTION_SINT_INDEX 0x00000000
+#define HV_SYNIC_IOMMU_FAULT_SINT_INDEX  0x00000001
+#define HV_SYNIC_VMBUS_SINT_INDEX       0x00000002
+#define HV_SYNIC_FIRST_UNUSED_SINT_INDEX 0x00000005
+
+/* mshv assigned SINT for doorbell */
+#define HV_SYNIC_DOORBELL_SINT_INDEX     HV_SYNIC_FIRST_UNUSED_SINT_INDEX
+
+enum hv_interrupt_type {
+       HV_X64_INTERRUPT_TYPE_FIXED             = 0x0000,
+       HV_X64_INTERRUPT_TYPE_LOWESTPRIORITY    = 0x0001,
+       HV_X64_INTERRUPT_TYPE_SMI               = 0x0002,
+       HV_X64_INTERRUPT_TYPE_REMOTEREAD        = 0x0003,
+       HV_X64_INTERRUPT_TYPE_NMI               = 0x0004,
+       HV_X64_INTERRUPT_TYPE_INIT              = 0x0005,
+       HV_X64_INTERRUPT_TYPE_SIPI              = 0x0006,
+       HV_X64_INTERRUPT_TYPE_EXTINT            = 0x0007,
+       HV_X64_INTERRUPT_TYPE_LOCALINT0         = 0x0008,
+       HV_X64_INTERRUPT_TYPE_LOCALINT1         = 0x0009,
+       HV_X64_INTERRUPT_TYPE_MAXIMUM           = 0x000A,
+};
+
+/* Define synthetic interrupt source. */
+union hv_synic_sint {
+       u64 as_uint64;
+       struct {
+               u64 vector : 8;
+               u64 reserved1 : 8;
+               u64 masked : 1;
+               u64 auto_eoi : 1;
+               u64 polling : 1;
+               u64 as_intercept : 1;
+               u64 proxy : 1;
+               u64 reserved2 : 43;
+       } __packed;
+};
+
+union hv_x64_xsave_xfem_register {
+       u64 as_uint64;
+       struct {
+               u32 low_uint32;
+               u32 high_uint32;
+       } __packed;
+       struct {
+               u64 legacy_x87 : 1;
+               u64 legacy_sse : 1;
+               u64 avx : 1;
+               u64 mpx_bndreg : 1;
+               u64 mpx_bndcsr : 1;
+               u64 avx_512_op_mask : 1;
+               u64 avx_512_zmmhi : 1;
+               u64 avx_512_zmm16_31 : 1;
+               u64 rsvd8_9 : 2;
+               u64 pasid : 1;
+               u64 cet_u : 1;
+               u64 cet_s : 1;
+               u64 rsvd13_16 : 4;
+               u64 xtile_cfg : 1;
+               u64 xtile_data : 1;
+               u64 rsvd19_63 : 45;
+       } __packed;
+};
+
+/* Synthetic timer configuration */
+union hv_stimer_config {        /* HV_X64_MSR_STIMER_CONFIG_CONTENTS */
+       u64 as_uint64;
+       struct {
+               u64 enable : 1;
+               u64 periodic : 1;
+               u64 lazy : 1;
+               u64 auto_enable : 1;
+               u64 apic_vector : 8;
+               u64 direct_mode : 1;
+               u64 reserved_z0 : 3;
+               u64 sintx : 4;
+               u64 reserved_z1 : 44;
+       } __packed;
+};
+
+/* Define the number of synthetic timers */
+#define HV_SYNIC_STIMER_COUNT  (4)
+
+/* Define port identifier type. */
+union hv_port_id {
+       u32 asu32;
+       struct {
+               u32 id : 24;
+               u32 reserved : 8;
+       } __packed u;
+};
+
+#define HV_MESSAGE_SIZE                        (256)
+#define HV_MESSAGE_PAYLOAD_BYTE_COUNT  (240)
+#define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30)
+
+/* Define hypervisor message types. */
+enum hv_message_type {
+       HVMSG_NONE                              = 0x00000000,
+
+       /* Memory access messages. */
+       HVMSG_UNMAPPED_GPA                      = 0x80000000,
+       HVMSG_GPA_INTERCEPT                     = 0x80000001,
+
+       /* Timer notification messages. */
+       HVMSG_TIMER_EXPIRED                     = 0x80000010,
+
+       /* Error messages. */
+       HVMSG_INVALID_VP_REGISTER_VALUE         = 0x80000020,
+       HVMSG_UNRECOVERABLE_EXCEPTION           = 0x80000021,
+       HVMSG_UNSUPPORTED_FEATURE               = 0x80000022,
+
+       /*
+        * Opaque intercept message. The original intercept message is only
+        * accessible from the mapped intercept message page.
+        */
+       HVMSG_OPAQUE_INTERCEPT                  = 0x8000003F,
+
+       /* Trace buffer complete messages. */
+       HVMSG_EVENTLOG_BUFFERCOMPLETE           = 0x80000040,
+
+       /* Hypercall intercept */
+       HVMSG_HYPERCALL_INTERCEPT               = 0x80000050,
+
+       /* SynIC intercepts */
+       HVMSG_SYNIC_EVENT_INTERCEPT             = 0x80000060,
+       HVMSG_SYNIC_SINT_INTERCEPT              = 0x80000061,
+       HVMSG_SYNIC_SINT_DELIVERABLE    = 0x80000062,
+
+       /* Async call completion intercept */
+       HVMSG_ASYNC_CALL_COMPLETION             = 0x80000070,
+
+       /* Root scheduler messages */
+       HVMSG_SCHEDULER_VP_SIGNAL_BITSET        = 0x80000100,
+       HVMSG_SCHEDULER_VP_SIGNAL_PAIR          = 0x80000101,
+
+       /* Platform-specific processor intercept messages. */
+       HVMSG_X64_IO_PORT_INTERCEPT             = 0x80010000,
+       HVMSG_X64_MSR_INTERCEPT                 = 0x80010001,
+       HVMSG_X64_CPUID_INTERCEPT               = 0x80010002,
+       HVMSG_X64_EXCEPTION_INTERCEPT           = 0x80010003,
+       HVMSG_X64_APIC_EOI                      = 0x80010004,
+       HVMSG_X64_LEGACY_FP_ERROR               = 0x80010005,
+       HVMSG_X64_IOMMU_PRQ                     = 0x80010006,
+       HVMSG_X64_HALT                          = 0x80010007,
+       HVMSG_X64_INTERRUPTION_DELIVERABLE      = 0x80010008,
+       HVMSG_X64_SIPI_INTERCEPT                = 0x80010009,
+};
+
+/* Define the format of the SIMP register */
+union hv_synic_simp {
+       u64 as_uint64;
+       struct {
+               u64 simp_enabled : 1;
+               u64 preserved : 11;
+               u64 base_simp_gpa : 52;
+       } __packed;
+};
+
+union hv_message_flags {
+       u8 asu8;
+       struct {
+               u8 msg_pending : 1;
+               u8 reserved : 7;
+       } __packed;
+};
+
+struct hv_message_header {
+       u32 message_type;
+       u8 payload_size;
+       union hv_message_flags message_flags;
+       u8 reserved[2];
+       union {
+               u64 sender;
+               union hv_port_id port;
+       };
+} __packed;
+
+/*
+ * Message format for notifications delivered via
+ * intercept message(as_intercept=1)
+ */
+struct hv_notification_message_payload {
+       u32 sint_index;
+} __packed;
+
+struct hv_message {
+       struct hv_message_header header;
+       union {
+               u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];
+       } u;
+} __packed;
+
+/* Define the synthetic interrupt message page layout. */
+struct hv_message_page {
+       struct hv_message sint_message[HV_SYNIC_SINT_COUNT];
+} __packed;
+
+struct hv_x64_segment_register {
+       u64 base;
+       u32 limit;
+       u16 selector;
+       union {
+               struct {
+                       u16 segment_type : 4;
+                       u16 non_system_segment : 1;
+                       u16 descriptor_privilege_level : 2;
+                       u16 present : 1;
+                       u16 reserved : 4;
+                       u16 available : 1;
+                       u16 _long : 1;
+                       u16 _default : 1;
+                       u16 granularity : 1;
+               } __packed;
+               u16 attributes;
+       };
+} __packed;
+
+struct hv_x64_table_register {
+       u16 pad[3];
+       u16 limit;
+       u64 base;
+} __packed;
+
+union hv_input_vtl {
+       u8 as_uint8;
+       struct {
+               u8 target_vtl : 4;
+               u8 use_target_vtl : 1;
+               u8 reserved_z : 3;
+       };
+} __packed;
+
+struct hv_init_vp_context {
+       u64 rip;
+       u64 rsp;
+       u64 rflags;
+
+       struct hv_x64_segment_register cs;
+       struct hv_x64_segment_register ds;
+       struct hv_x64_segment_register es;
+       struct hv_x64_segment_register fs;
+       struct hv_x64_segment_register gs;
+       struct hv_x64_segment_register ss;
+       struct hv_x64_segment_register tr;
+       struct hv_x64_segment_register ldtr;
+
+       struct hv_x64_table_register idtr;
+       struct hv_x64_table_register gdtr;
+
+       u64 efer;
+       u64 cr0;
+       u64 cr3;
+       u64 cr4;
+       u64 msr_cr_pat;
+} __packed;
+
+struct hv_enable_vp_vtl {
+       u64                             partition_id;
+       u32                             vp_index;
+       union hv_input_vtl              target_vtl;
+       u8                              mbz0;
+       u16                             mbz1;
+       struct hv_init_vp_context       vp_context;
+} __packed;
+
+struct hv_nested_enlightenments_control {
+       struct {
+               u32 directhypercall : 1;
+               u32 reserved : 31;
+       } __packed features;
+       struct {
+               u32 inter_partition_comm : 1;
+               u32 reserved : 31;
+       } __packed hypercall_controls;
+} __packed;
+
+/* Define virtual processor assist page structure. */
+struct hv_vp_assist_page {
+       u32 apic_assist;
+       u32 reserved1;
+       u32 vtl_entry_reason;
+       u32 vtl_reserved;
+       u64 vtl_ret_x64rax;
+       u64 vtl_ret_x64rcx;
+       struct hv_nested_enlightenments_control nested_control;
+       u8 enlighten_vmentry;
+       u8 reserved2[7];
+       u64 current_nested_vmcs;
+       u8 synthetic_time_unhalted_timer_expired;
+       u8 reserved3[7];
+       u8 virtualization_fault_information[40];
+       u8 reserved4[8];
+       u8 intercept_message[256];
+       u8 vtl_ret_actions[256];
+} __packed;
+
+enum hv_register_name {
+       /* Suspend Registers */
+       HV_REGISTER_EXPLICIT_SUSPEND                            = 0x00000000,
+       HV_REGISTER_INTERCEPT_SUSPEND                           = 0x00000001,
+       HV_REGISTER_DISPATCH_SUSPEND                            = 0x00000003,
+
+       /* Version - 128-bit result same as CPUID 0x40000002 */
+       HV_REGISTER_HYPERVISOR_VERSION                          = 0x00000100,
+
+       /* Feature Access (registers are 128 bits) - same as CPUID 0x40000003 - 
0x4000000B */
+       HV_REGISTER_PRIVILEGES_AND_FEATURES_INFO                = 0x00000200,
+       HV_REGISTER_FEATURES_INFO                               = 0x00000201,
+       HV_REGISTER_IMPLEMENTATION_LIMITS_INFO                  = 0x00000202,
+       HV_REGISTER_HARDWARE_FEATURES_INFO                      = 0x00000203,
+       HV_REGISTER_CPU_MANAGEMENT_FEATURES_INFO                = 0x00000204,
+       HV_REGISTER_SVM_FEATURES_INFO                           = 0x00000205,
+       HV_REGISTER_SKIP_LEVEL_FEATURES_INFO                    = 0x00000206,
+       HV_REGISTER_NESTED_VIRT_FEATURES_INFO                   = 0x00000207,
+       HV_REGISTER_IPT_FEATURES_INFO                           = 0x00000208,
+
+       /* Guest Crash Registers */
+       HV_REGISTER_GUEST_CRASH_P0                              = 0x00000210,
+       HV_REGISTER_GUEST_CRASH_P1                              = 0x00000211,
+       HV_REGISTER_GUEST_CRASH_P2                              = 0x00000212,
+       HV_REGISTER_GUEST_CRASH_P3                              = 0x00000213,
+       HV_REGISTER_GUEST_CRASH_P4                              = 0x00000214,
+       HV_REGISTER_GUEST_CRASH_CTL                             = 0x00000215,
+
+       /* Misc */
+       HV_REGISTER_VP_RUNTIME                                  = 0x00090000,
+       HV_REGISTER_GUEST_OS_ID                                 = 0x00090002,
+       HV_REGISTER_VP_INDEX                                    = 0x00090003,
+       HV_REGISTER_TIME_REF_COUNT                              = 0x00090004,
+       HV_REGISTER_CPU_MANAGEMENT_VERSION                      = 0x00090007,
+       HV_REGISTER_VP_ASSIST_PAGE                              = 0x00090013,
+       HV_REGISTER_VP_ROOT_SIGNAL_COUNT                        = 0x00090014,
+       HV_REGISTER_REFERENCE_TSC                               = 0x00090017,
+
+       /* Hypervisor-defined Registers (Synic) */
+       HV_REGISTER_SINT0                                       = 0x000A0000,
+       HV_REGISTER_SINT1                                       = 0x000A0001,
+       HV_REGISTER_SINT2                                       = 0x000A0002,
+       HV_REGISTER_SINT3                                       = 0x000A0003,
+       HV_REGISTER_SINT4                                       = 0x000A0004,
+       HV_REGISTER_SINT5                                       = 0x000A0005,
+       HV_REGISTER_SINT6                                       = 0x000A0006,
+       HV_REGISTER_SINT7                                       = 0x000A0007,
+       HV_REGISTER_SINT8                                       = 0x000A0008,
+       HV_REGISTER_SINT9                                       = 0x000A0009,
+       HV_REGISTER_SINT10                                      = 0x000A000A,
+       HV_REGISTER_SINT11                                      = 0x000A000B,
+       HV_REGISTER_SINT12                                      = 0x000A000C,
+       HV_REGISTER_SINT13                                      = 0x000A000D,
+       HV_REGISTER_SINT14                                      = 0x000A000E,
+       HV_REGISTER_SINT15                                      = 0x000A000F,
+       HV_REGISTER_SCONTROL                                    = 0x000A0010,
+       HV_REGISTER_SVERSION                                    = 0x000A0011,
+       HV_REGISTER_SIEFP                                       = 0x000A0012,
+       HV_REGISTER_SIMP                                        = 0x000A0013,
+       HV_REGISTER_EOM                                         = 0x000A0014,
+       HV_REGISTER_SIRBP                                       = 0x000A0015,
+
+       HV_REGISTER_NESTED_SINT0                                = 0x000A1000,
+       HV_REGISTER_NESTED_SINT1                                = 0x000A1001,
+       HV_REGISTER_NESTED_SINT2                                = 0x000A1002,
+       HV_REGISTER_NESTED_SINT3                                = 0x000A1003,
+       HV_REGISTER_NESTED_SINT4                                = 0x000A1004,
+       HV_REGISTER_NESTED_SINT5                                = 0x000A1005,
+       HV_REGISTER_NESTED_SINT6                                = 0x000A1006,
+       HV_REGISTER_NESTED_SINT7                                = 0x000A1007,
+       HV_REGISTER_NESTED_SINT8                                = 0x000A1008,
+       HV_REGISTER_NESTED_SINT9                                = 0x000A1009,
+       HV_REGISTER_NESTED_SINT10                               = 0x000A100A,
+       HV_REGISTER_NESTED_SINT11                               = 0x000A100B,
+       HV_REGISTER_NESTED_SINT12                               = 0x000A100C,
+       HV_REGISTER_NESTED_SINT13                               = 0x000A100D,
+       HV_REGISTER_NESTED_SINT14                               = 0x000A100E,
+       HV_REGISTER_NESTED_SINT15                               = 0x000A100F,
+       HV_REGISTER_NESTED_SCONTROL                             = 0x000A1010,
+       HV_REGISTER_NESTED_SVERSION                             = 0x000A1011,
+       HV_REGISTER_NESTED_SIFP                                 = 0x000A1012,
+       HV_REGISTER_NESTED_SIPP                                 = 0x000A1013,
+       HV_REGISTER_NESTED_EOM                                  = 0x000A1014,
+       HV_REGISTER_NESTED_SIRBP                                = 0x000a1015,
+
+       /* Hypervisor-defined Registers (Synthetic Timers) */
+       HV_REGISTER_STIMER0_CONFIG                              = 0x000B0000,
+       HV_REGISTER_STIMER0_COUNT                               = 0x000B0001,
+
+       /* VSM */
+       HV_X64_REGISTER_VSM_VP_STATUS                           = 0x000D0003,
+};
+
+/*
+ * Arch compatibility regs for use with hv_set/get_register
+ */
+#if defined(CONFIG_X86)
+
+/*
+ * To support arch-generic code calling hv_set/get_register:
+ * - On x86, HV_MSR_ indicates an MSR accessed via rdmsrl/wrmsrl
+ * - On ARM, HV_MSR_ indicates a VP register accessed via hypercall
+ */
+#define HV_MSR_CRASH_P0                (HV_X64_MSR_CRASH_P0)
+#define HV_MSR_CRASH_P1                (HV_X64_MSR_CRASH_P1)
+#define HV_MSR_CRASH_P2                (HV_X64_MSR_CRASH_P2)
+#define HV_MSR_CRASH_P3                (HV_X64_MSR_CRASH_P3)
+#define HV_MSR_CRASH_P4                (HV_X64_MSR_CRASH_P4)
+#define HV_MSR_CRASH_CTL       (HV_X64_MSR_CRASH_CTL)
+
+#define HV_MSR_VP_INDEX                (HV_X64_MSR_VP_INDEX)
+#define HV_MSR_TIME_REF_COUNT  (HV_X64_MSR_TIME_REF_COUNT)
+#define HV_MSR_REFERENCE_TSC   (HV_X64_MSR_REFERENCE_TSC)
+
+#define HV_MSR_SINT0           (HV_X64_MSR_SINT0)
+#define HV_MSR_SVERSION                (HV_X64_MSR_SVERSION)
+#define HV_MSR_SCONTROL                (HV_X64_MSR_SCONTROL)
+#define HV_MSR_SIEFP           (HV_X64_MSR_SIEFP)
+#define HV_MSR_SIMP            (HV_X64_MSR_SIMP)
+#define HV_MSR_EOM             (HV_X64_MSR_EOM)
+#define HV_MSR_SIRBP           (HV_X64_MSR_SIRBP)
+
+#define HV_MSR_NESTED_SCONTROL (HV_X64_MSR_NESTED_SCONTROL)
+#define HV_MSR_NESTED_SVERSION (HV_X64_MSR_NESTED_SVERSION)
+#define HV_MSR_NESTED_SIEFP    (HV_X64_MSR_NESTED_SIEFP)
+#define HV_MSR_NESTED_SIMP     (HV_X64_MSR_NESTED_SIMP)
+#define HV_MSR_NESTED_EOM      (HV_X64_MSR_NESTED_EOM)
+#define HV_MSR_NESTED_SINT0    (HV_X64_MSR_NESTED_SINT0)
+
+#define HV_MSR_STIMER0_CONFIG  (HV_X64_MSR_STIMER0_CONFIG)
+#define HV_MSR_STIMER0_COUNT   (HV_X64_MSR_STIMER0_COUNT)
+
+#elif defined(CONFIG_ARM64) /* CONFIG_X86 */
+
+#define HV_MSR_CRASH_P0                (HV_REGISTER_GUEST_CRASH_P0)
+#define HV_MSR_CRASH_P1                (HV_REGISTER_GUEST_CRASH_P1)
+#define HV_MSR_CRASH_P2                (HV_REGISTER_GUEST_CRASH_P2)
+#define HV_MSR_CRASH_P3                (HV_REGISTER_GUEST_CRASH_P3)
+#define HV_MSR_CRASH_P4                (HV_REGISTER_GUEST_CRASH_P4)
+#define HV_MSR_CRASH_CTL       (HV_REGISTER_GUEST_CRASH_CTL)
+
+#define HV_MSR_VP_INDEX                (HV_REGISTER_VP_INDEX)
+#define HV_MSR_TIME_REF_COUNT  (HV_REGISTER_TIME_REF_COUNT)
+#define HV_MSR_REFERENCE_TSC   (HV_REGISTER_REFERENCE_TSC)
+
+#define HV_MSR_SINT0           (HV_REGISTER_SINT0)
+#define HV_MSR_SCONTROL                (HV_REGISTER_SCONTROL)
+#define HV_MSR_SIEFP           (HV_REGISTER_SIEFP)
+#define HV_MSR_SIMP            (HV_REGISTER_SIMP)
+#define HV_MSR_EOM             (HV_REGISTER_EOM)
+#define HV_MSR_SIRBP           (HV_REGISTER_SIRBP)
+
+#define HV_MSR_STIMER0_CONFIG  (HV_REGISTER_STIMER0_CONFIG)
+#define HV_MSR_STIMER0_COUNT   (HV_REGISTER_STIMER0_COUNT)
+
+#endif /* CONFIG_ARM64 */
+
+union hv_explicit_suspend_register {
+       u64 as_uint64;
+       struct {
+               u64 suspended : 1;
+               u64 reserved : 63;
+       } __packed;
+};
+
+union hv_intercept_suspend_register {
+       u64 as_uint64;
+       struct {
+               u64 suspended : 1;
+               u64 reserved : 63;
+       } __packed;
+};
+
+union hv_dispatch_suspend_register {
+       u64 as_uint64;
+       struct {
+               u64 suspended : 1;
+               u64 reserved : 63;
+       } __packed;
+};
+
+union hv_x64_interrupt_state_register {
+       u64 as_uint64;
+       struct {
+               u64 interrupt_shadow : 1;
+               u64 nmi_masked : 1;
+               u64 reserved : 62;
+       } __packed;
+};
+
+union hv_x64_pending_interruption_register {
+       u64 as_uint64;
+       struct {
+               u32 interruption_pending : 1;
+               u32 interruption_type : 3;
+               u32 deliver_error_code : 1;
+               u32 instruction_length : 4;
+               u32 nested_event : 1;
+               u32 reserved : 6;
+               u32 interruption_vector : 16;
+               u32 error_code;
+       } __packed;
+};
+
+union hv_register_value {
+       struct hv_u128 reg128;
+       u64 reg64;
+       u32 reg32;
+       u16 reg16;
+       u8 reg8;
+
+       struct hv_x64_segment_register segment;
+       struct hv_x64_table_register table;
+       union hv_explicit_suspend_register explicit_suspend;
+       union hv_intercept_suspend_register intercept_suspend;
+       union hv_dispatch_suspend_register dispatch_suspend;
+       union hv_x64_interrupt_state_register interrupt_state;
+       union hv_x64_pending_interruption_register pending_interruption;
+};
+
+#if defined(CONFIG_ARM64)
+/* HvGetVpRegisters returns an array of these output elements */
+struct hv_get_vp_registers_output {
+       union {
+               struct {
+                       u32 a;
+                       u32 b;
+                       u32 c;
+                       u32 d;
+               } as32 __packed;
+               struct {
+                       u64 low;
+                       u64 high;
+               } as64 __packed;
+       };
+};
+
+#endif /* CONFIG_ARM64 */
+
+struct hv_register_assoc {
+       u32 name;                       /* enum hv_register_name */
+       u32 reserved1;
+       u64 reserved2;
+       union hv_register_value value;
+} __packed;
+
+struct hv_input_get_vp_registers {
+       u64 partition_id;
+       u32 vp_index;
+       union hv_input_vtl input_vtl;
+       u8  rsvd_z8;
+       u16 rsvd_z16;
+       u32 names[];
+} __packed;
+
+struct hv_input_set_vp_registers {
+       u64 partition_id;
+       u32 vp_index;
+       union hv_input_vtl input_vtl;
+       u8  rsvd_z8;
+       u16 rsvd_z16;
+       struct hv_register_assoc elements[];
+} __packed;
+
+#define HV_UNMAP_GPA_LARGE_PAGE                0x2
+
+/* HvCallSendSyntheticClusterIpi hypercall */
+struct hv_send_ipi {    /* HV_INPUT_SEND_SYNTHETIC_CLUSTER_IPI */
+       u32 vector;
+       u32 reserved;
+       u64 cpu_mask;
+} __packed;
+
+#define        HV_X64_VTL_MASK                 GENMASK(3, 0)
+
+/* Hyper-V memory host visibility */
+enum hv_mem_host_visibility {
+       VMBUS_PAGE_NOT_VISIBLE          = 0,
+       VMBUS_PAGE_VISIBLE_READ_ONLY    = 1,
+       VMBUS_PAGE_VISIBLE_READ_WRITE   = 3
+};
+
+/* HvCallModifySparseGpaPageHostVisibility hypercall */
+#define HV_MAX_MODIFY_GPA_REP_COUNT    ((PAGE_SIZE / sizeof(u64)) - 2)
+struct hv_gpa_range_for_visibility {
+       u64 partition_id;
+       u32 host_visibility : 2;
+       u32 reserved0 : 30;
+       u32 reserved1;
+       u64 gpa_page_list[HV_MAX_MODIFY_GPA_REP_COUNT];
+} __packed;
+
+#if defined(CONFIG_X86)
+union hv_msi_address_register { /* HV_MSI_ADDRESS */
+       u32 as_uint32;
+       struct {
+               u32 reserved1 : 2;
+               u32 destination_mode : 1;
+               u32 redirection_hint : 1;
+               u32 reserved2 : 8;
+               u32 destination_id : 8;
+               u32 msi_base : 12;
+       };
+} __packed;
+
+union hv_msi_data_register {    /* HV_MSI_ENTRY.Data */
+       u32 as_uint32;
+       struct {
+               u32 vector : 8;
+               u32 delivery_mode : 3;
+               u32 reserved1 : 3;
+               u32 level_assert : 1;
+               u32 trigger_mode : 1;
+               u32 reserved2 : 16;
+       };
+} __packed;
+
+union hv_msi_entry {    /* HV_MSI_ENTRY */
+
+       u64 as_uint64;
+       struct {
+               union hv_msi_address_register address;
+               union hv_msi_data_register data;
+       } __packed;
+};
+
+#elif defined(CONFIG_ARM64) /* CONFIG_X86 */
+
+union hv_msi_entry {
+       u64 as_uint64[2];
+       struct {
+               u64 address;
+               u32 data;
+               u32 reserved;
+       } __packed;
+};
+#endif /* CONFIG_ARM64 */
+
+union hv_ioapic_rte {
+       u64 as_uint64;
+
+       struct {
+               u32 vector : 8;
+               u32 delivery_mode : 3;
+               u32 destination_mode : 1;
+               u32 delivery_status : 1;
+               u32 interrupt_polarity : 1;
+               u32 remote_irr : 1;
+               u32 trigger_mode : 1;
+               u32 interrupt_mask : 1;
+               u32 reserved1 : 15;
+
+               u32 reserved2 : 24;
+               u32 destination_id : 8;
+       };
+
+       struct {
+               u32 low_uint32;
+               u32 high_uint32;
+       };
+} __packed;
+
+enum hv_interrupt_source {      /* HV_INTERRUPT_SOURCE */
+       HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */
+       HV_INTERRUPT_SOURCE_IOAPIC,
+};
+
+struct hv_interrupt_entry {     /* HV_INTERRUPT_ENTRY */
+       u32 source;
+       u32 reserved1;
+       union {
+               union hv_msi_entry msi_entry;
+               union hv_ioapic_rte ioapic_rte;
+       };
+} __packed;
+
+#define HV_DEVICE_INTERRUPT_TARGET_MULTICAST           1
+#define HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET       2
+
+struct hv_device_interrupt_target {     /* HV_DEVICE_INTERRUPT_TARGET */
+       u32 vector;
+       u32 flags;              /* HV_DEVICE_INTERRUPT_TARGET_* above */
+       union {
+               u64 vp_mask;
+               struct hv_vpset vp_set;
+       };
+} __packed;
+
+struct hv_retarget_device_interrupt {   /* HV_INPUT_RETARGET_DEVICE_INTERRUPT 
*/
+       u64 partition_id;               /* use "self" */
+       u64 device_id;
+       struct hv_interrupt_entry int_entry;
+       u64 reserved2;
+       struct hv_device_interrupt_target int_target;
+} __packed __aligned(8);
+
+/* Data structures for HVCALL_MMIO_READ and HVCALL_MMIO_WRITE */
+#define HV_HYPERCALL_MMIO_MAX_DATA_LENGTH 64
+
+struct hv_mmio_read_input { /* HV_INPUT_MEMORY_MAPPED_IO_READ */
+       u64 gpa;
+       u32 size;
+       u32 reserved;
+} __packed;
+
+struct hv_mmio_read_output {
+       u8 data[HV_HYPERCALL_MMIO_MAX_DATA_LENGTH];
+} __packed;
+
+struct hv_mmio_write_input {
+       u64 gpa;
+       u32 size;
+       u32 reserved;
+       u8 data[HV_HYPERCALL_MMIO_MAX_DATA_LENGTH];
+} __packed;
+
+#endif /* _HV_HVGDK_MINI_H */
diff --git a/include/hyperv/hvhdk.h b/include/hyperv/hvhdk.h
new file mode 100644
index 000000000000..64407c2a3809
--- /dev/null
+++ b/include/hyperv/hvhdk.h
@@ -0,0 +1,733 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Type definitions for the Microsoft hypervisor.
+ */
+#ifndef _HV_HVHDK_H
+#define _HV_HVHDK_H
+
+#include <linux/build_bug.h>
+
+#include "hvhdk_mini.h"
+#include "hvgdk.h"
+
+/* Bits for dirty mask of hv_vp_register_page */
+#define HV_X64_REGISTER_CLASS_GENERAL  0
+#define HV_X64_REGISTER_CLASS_IP       1
+#define HV_X64_REGISTER_CLASS_XMM      2
+#define HV_X64_REGISTER_CLASS_SEGMENT  3
+#define HV_X64_REGISTER_CLASS_FLAGS    4
+
+#define HV_VP_REGISTER_PAGE_VERSION_1  1u
+
+struct hv_vp_register_page {
+       u16 version;
+       u8 isvalid;
+       u8 rsvdz;
+       u32 dirty;
+       union {
+               struct {
+                       /* General purpose registers
+                        * (HV_X64_REGISTER_CLASS_GENERAL)
+                        */
+                       union {
+                               struct {
+                                       u64 rax;
+                                       u64 rcx;
+                                       u64 rdx;
+                                       u64 rbx;
+                                       u64 rsp;
+                                       u64 rbp;
+                                       u64 rsi;
+                                       u64 rdi;
+                                       u64 r8;
+                                       u64 r9;
+                                       u64 r10;
+                                       u64 r11;
+                                       u64 r12;
+                                       u64 r13;
+                                       u64 r14;
+                                       u64 r15;
+                               } __packed;
+
+                               u64 gp_registers[16];
+                       };
+                       /* Instruction pointer (HV_X64_REGISTER_CLASS_IP) */
+                       u64 rip;
+                       /* Flags (HV_X64_REGISTER_CLASS_FLAGS) */
+                       u64 rflags;
+               } __packed;
+
+               u64 registers[18];
+       };
+       /* Volatile XMM registers (HV_X64_REGISTER_CLASS_XMM) */
+       union {
+               struct {
+                       struct hv_u128 xmm0;
+                       struct hv_u128 xmm1;
+                       struct hv_u128 xmm2;
+                       struct hv_u128 xmm3;
+                       struct hv_u128 xmm4;
+                       struct hv_u128 xmm5;
+               } __packed;
+
+               struct hv_u128 xmm_registers[6];
+       };
+       /* Segment registers (HV_X64_REGISTER_CLASS_SEGMENT) */
+       union {
+               struct {
+                       struct hv_x64_segment_register es;
+                       struct hv_x64_segment_register cs;
+                       struct hv_x64_segment_register ss;
+                       struct hv_x64_segment_register ds;
+                       struct hv_x64_segment_register fs;
+                       struct hv_x64_segment_register gs;
+               } __packed;
+
+               struct hv_x64_segment_register segment_registers[6];
+       };
+       /* Misc. control registers (cannot be set via this interface) */
+       u64 cr0;
+       u64 cr3;
+       u64 cr4;
+       u64 cr8;
+       u64 efer;
+       u64 dr7;
+       union hv_x64_pending_interruption_register pending_interruption;
+       union hv_x64_interrupt_state_register interrupt_state;
+       u64 instruction_emulation_hints;
+} __packed;
+
+#define HV_PARTITION_PROCESSOR_FEATURES_BANKS 2
+
+union hv_partition_processor_features {
+       u64 as_uint64[HV_PARTITION_PROCESSOR_FEATURES_BANKS];
+       struct {
+               u64 sse3_support : 1;
+               u64 lahf_sahf_support : 1;
+               u64 ssse3_support : 1;
+               u64 sse4_1_support : 1;
+               u64 sse4_2_support : 1;
+               u64 sse4a_support : 1;
+               u64 xop_support : 1;
+               u64 pop_cnt_support : 1;
+               u64 cmpxchg16b_support : 1;
+               u64 altmovcr8_support : 1;
+               u64 lzcnt_support : 1;
+               u64 mis_align_sse_support : 1;
+               u64 mmx_ext_support : 1;
+               u64 amd3dnow_support : 1;
+               u64 extended_amd3dnow_support : 1;
+               u64 page_1gb_support : 1;
+               u64 aes_support : 1;
+               u64 pclmulqdq_support : 1;
+               u64 pcid_support : 1;
+               u64 fma4_support : 1;
+               u64 f16c_support : 1;
+               u64 rd_rand_support : 1;
+               u64 rd_wr_fs_gs_support : 1;
+               u64 smep_support : 1;
+               u64 enhanced_fast_string_support : 1;
+               u64 bmi1_support : 1;
+               u64 bmi2_support : 1;
+               u64 hle_support_deprecated : 1;
+               u64 rtm_support_deprecated : 1;
+               u64 movbe_support : 1;
+               u64 npiep1_support : 1;
+               u64 dep_x87_fpu_save_support : 1;
+               u64 rd_seed_support : 1;
+               u64 adx_support : 1;
+               u64 intel_prefetch_support : 1;
+               u64 smap_support : 1;
+               u64 hle_support : 1;
+               u64 rtm_support : 1;
+               u64 rdtscp_support : 1;
+               u64 clflushopt_support : 1;
+               u64 clwb_support : 1;
+               u64 sha_support : 1;
+               u64 x87_pointers_saved_support : 1;
+               u64 invpcid_support : 1;
+               u64 ibrs_support : 1;
+               u64 stibp_support : 1;
+               u64 ibpb_support: 1;
+               u64 unrestricted_guest_support : 1;
+               u64 mdd_support : 1;
+               u64 fast_short_rep_mov_support : 1;
+               u64 l1dcache_flush_support : 1;
+               u64 rdcl_no_support : 1;
+               u64 ibrs_all_support : 1;
+               u64 skip_l1df_support : 1;
+               u64 ssb_no_support : 1;
+               u64 rsb_a_no_support : 1;
+               u64 virt_spec_ctrl_support : 1;
+               u64 rd_pid_support : 1;
+               u64 umip_support : 1;
+               u64 mbs_no_support : 1;
+               u64 mb_clear_support : 1;
+               u64 taa_no_support : 1;
+               u64 tsx_ctrl_support : 1;
+               /*
+                * N.B. The final processor feature bit in bank 0 is reserved to
+                * simplify potential downlevel backports.
+                */
+               u64 reserved_bank0 : 1;
+
+               /* N.B. Begin bank 1 processor features. */
+               u64 acount_mcount_support : 1;
+               u64 tsc_invariant_support : 1;
+               u64 cl_zero_support : 1;
+               u64 rdpru_support : 1;
+               u64 la57_support : 1;
+               u64 mbec_support : 1;
+               u64 nested_virt_support : 1;
+               u64 psfd_support : 1;
+               u64 cet_ss_support : 1;
+               u64 cet_ibt_support : 1;
+               u64 vmx_exception_inject_support : 1;
+               u64 enqcmd_support : 1;
+               u64 umwait_tpause_support : 1;
+               u64 movdiri_support : 1;
+               u64 movdir64b_support : 1;
+               u64 cldemote_support : 1;
+               u64 serialize_support : 1;
+               u64 tsc_deadline_tmr_support : 1;
+               u64 tsc_adjust_support : 1;
+               u64 fzlrep_movsb : 1;
+               u64 fsrep_stosb : 1;
+               u64 fsrep_cmpsb : 1;
+               u64 reserved_bank1 : 42;
+       } __packed;
+};
+
+union hv_partition_processor_xsave_features {
+       struct {
+               u64 xsave_support : 1;
+               u64 xsaveopt_support : 1;
+               u64 avx_support : 1;
+               u64 reserved1 : 61;
+       } __packed;
+       u64 as_uint64;
+};
+
+struct hv_partition_creation_properties {
+       union hv_partition_processor_features disabled_processor_features;
+       union hv_partition_processor_xsave_features
+               disabled_processor_xsave_features;
+} __packed;
+
+#define HV_PARTITION_SYNTHETIC_PROCESSOR_FEATURES_BANKS 1
+
+union hv_partition_synthetic_processor_features {
+       u64 as_uint64[HV_PARTITION_SYNTHETIC_PROCESSOR_FEATURES_BANKS];
+
+       struct {
+               u64 hypervisor_present : 1;
+               /* Support for HV#1: (CPUID leaves 0x40000000 - 0x40000006)*/
+               u64 hv1 : 1;
+               u64 access_vp_run_time_reg : 1; /* HV_X64_MSR_VP_RUNTIME */
+               u64 access_partition_reference_counter : 1; /* 
HV_X64_MSR_TIME_REF_COUNT */
+               u64 access_synic_regs : 1; /* SINT-related registers */
+               /*
+                * Access to HV_X64_MSR_STIMER0_CONFIG through
+                * HV_X64_MSR_STIMER3_COUNT.
+                */
+               u64 access_synthetic_timer_regs : 1;
+               u64 access_intr_ctrl_regs : 1; /* APIC MSRs and VP assist page*/
+               /* HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL */
+               u64 access_hypercall_regs : 1;
+               u64 access_vp_index : 1;
+               u64 access_partition_reference_tsc : 1;
+               u64 access_guest_idle_reg : 1;
+               u64 access_frequency_regs : 1;
+               u64 reserved_z12 : 1;
+               u64 reserved_z13 : 1;
+               u64 reserved_z14 : 1;
+               u64 enable_extended_gva_ranges_for_flush_virtual_address_list : 
1;
+               u64 reserved_z16 : 1;
+               u64 reserved_z17 : 1;
+               /* Use fast hypercall output. Corresponds to privilege. */
+               u64 fast_hypercall_output : 1;
+               u64 reserved_z19 : 1;
+               u64 start_virtual_processor : 1; /* Can start VPs */
+               u64 reserved_z21 : 1;
+               /* Synthetic timers in direct mode. */
+               u64 direct_synthetic_timers : 1;
+               u64 reserved_z23 : 1;
+               u64 extended_processor_masks : 1;
+
+               /* Enable various hypercalls */
+               u64 tb_flush_hypercalls : 1;
+               u64 synthetic_cluster_ipi : 1;
+               u64 notify_long_spin_wait : 1;
+               u64 query_numa_distance : 1;
+               u64 signal_events : 1;
+               u64 retarget_device_interrupt : 1;
+               u64 restore_time : 1;
+
+               /* EnlightenedVmcs nested enlightenment is supported. */
+               u64 enlightened_vmcs : 1;
+               u64 reserved : 31;
+       } __packed;
+};
+
+#define HV_MAKE_COMPATIBILITY_VERSION(major_, minor_)  \
+       ((u32)((major_) << 8 | (minor_)))
+
+#define HV_COMPATIBILITY_21_H2         HV_MAKE_COMPATIBILITY_VERSION(0X6, 0X9)
+
+union hv_partition_isolation_properties {
+       u64 as_uint64;
+       struct {
+               u64 isolation_type: 5;
+               u64 isolation_host_type : 2;
+               u64 rsvd_z: 5;
+               u64 shared_gpa_boundary_page_number: 52;
+       } __packed;
+};
+
+/*
+ * Various isolation types supported by MSHV.
+ */
+#define HV_PARTITION_ISOLATION_TYPE_NONE            0
+#define HV_PARTITION_ISOLATION_TYPE_SNP             2
+#define HV_PARTITION_ISOLATION_TYPE_TDX             3
+
+/*
+ * Various host isolation types supported by MSHV.
+ */
+#define HV_PARTITION_ISOLATION_HOST_TYPE_NONE       0x0
+#define HV_PARTITION_ISOLATION_HOST_TYPE_HARDWARE   0x1
+#define HV_PARTITION_ISOLATION_HOST_TYPE_RESERVED   0x2
+
+/* Note: Exo partition is enabled by default */
+#define HV_PARTITION_CREATION_FLAG_EXO_PARTITION                    BIT(8)
+#define HV_PARTITION_CREATION_FLAG_LAPIC_ENABLED                    BIT(13)
+#define HV_PARTITION_CREATION_FLAG_INTERCEPT_MESSAGE_PAGE_ENABLED   BIT(19)
+#define HV_PARTITION_CREATION_FLAG_X2APIC_CAPABLE                   BIT(22)
+
+struct hv_input_create_partition {
+       u64 flags;
+       struct hv_proximity_domain_info proximity_domain_info;
+       u32 compatibility_version;
+       u32 padding;
+       struct hv_partition_creation_properties partition_creation_properties;
+       union hv_partition_isolation_properties isolation_properties;
+} __packed;
+
+struct hv_output_create_partition {
+       u64 partition_id;
+} __packed;
+
+struct hv_input_initialize_partition {
+       u64 partition_id;
+} __packed;
+
+struct hv_input_finalize_partition {
+       u64 partition_id;
+} __packed;
+
+struct hv_input_delete_partition {
+       u64 partition_id;
+} __packed;
+
+struct hv_input_get_partition_property {
+       u64 partition_id;
+       u32 property_code; /* enum hv_partition_property_code */
+       u32 padding;
+} __packed;
+
+struct hv_output_get_partition_property {
+       u64 property_value;
+} __packed;
+
+struct hv_input_set_partition_property {
+       u64 partition_id;
+       u32 property_code; /* enum hv_partition_property_code */
+       u32 padding;
+       u64 property_value;
+} __packed;
+
+enum hv_vp_state_page_type {
+       HV_VP_STATE_PAGE_REGISTERS = 0,
+       HV_VP_STATE_PAGE_INTERCEPT_MESSAGE = 1,
+       HV_VP_STATE_PAGE_COUNT
+};
+
+struct hv_input_map_vp_state_page {
+       u64 partition_id;
+       u32 vp_index;
+       u32 type; /* enum hv_vp_state_page_type */
+} __packed;
+
+struct hv_output_map_vp_state_page {
+       u64 map_location; /* GPA page number */
+} __packed;
+
+struct hv_input_unmap_vp_state_page {
+       u64 partition_id;
+       u32 vp_index;
+       u32 type; /* enum hv_vp_state_page_type */
+} __packed;
+
+struct hv_opaque_intercept_message {
+       u32 vp_index;
+} __packed;
+
+enum hv_port_type {
+       HV_PORT_TYPE_MESSAGE = 1,
+       HV_PORT_TYPE_EVENT   = 2,
+       HV_PORT_TYPE_MONITOR = 3,
+       HV_PORT_TYPE_DOORBELL = 4       /* Root Partition only */
+};
+
+struct hv_port_info {
+       u32 port_type; /* enum hv_port_type */
+       u32 padding;
+       union {
+               struct {
+                       u32 target_sint;
+                       u32 target_vp;
+                       u64 rsvdz;
+               } message_port_info;
+               struct {
+                       u32 target_sint;
+                       u32 target_vp;
+                       u16 base_flag_number;
+                       u16 flag_count;
+                       u32 rsvdz;
+               } event_port_info;
+               struct {
+                       u64 monitor_address;
+                       u64 rsvdz;
+               } monitor_port_info;
+               struct {
+                       u32 target_sint;
+                       u32 target_vp;
+                       u64 rsvdz;
+               } doorbell_port_info;
+       };
+} __packed;
+
+struct hv_connection_info {
+       u32 port_type;
+       u32 padding;
+       union {
+               struct {
+                       u64 rsvdz;
+               } message_connection_info;
+               struct {
+                       u64 rsvdz;
+               } event_connection_info;
+               struct {
+                       u64 monitor_address;
+               } monitor_connection_info;
+               struct {
+                       u64 gpa;
+                       u64 trigger_value;
+                       u64 flags;
+               } doorbell_connection_info;
+       };
+} __packed;
+
+/* Define synthetic interrupt controller flag constants. */
+#define HV_EVENT_FLAGS_COUNT           (256 * 8)
+#define HV_EVENT_FLAGS_BYTE_COUNT      (256)
+#define HV_EVENT_FLAGS32_COUNT         (256 / sizeof(u32))
+
+/* linux side we create long version of flags to use long bit ops on flags */
+#define HV_EVENT_FLAGS_UL_COUNT                (256 / sizeof(ulong))
+
+/* Define the synthetic interrupt controller event flags format. */
+union hv_synic_event_flags {
+       unsigned char flags8[HV_EVENT_FLAGS_BYTE_COUNT];
+       u32 flags32[HV_EVENT_FLAGS32_COUNT];
+       ulong flags[HV_EVENT_FLAGS_UL_COUNT];  /* linux only */
+};
+
+struct hv_synic_event_flags_page {
+       volatile union hv_synic_event_flags event_flags[HV_SYNIC_SINT_COUNT];
+};
+
+#define HV_SYNIC_EVENT_RING_MESSAGE_COUNT 63
+
+struct hv_synic_event_ring {
+       u8  signal_masked;
+       u8  ring_full;
+       u16 reserved_z;
+       u32 data[HV_SYNIC_EVENT_RING_MESSAGE_COUNT];
+} __packed;
+
+struct hv_synic_event_ring_page {
+       struct hv_synic_event_ring sint_event_ring[HV_SYNIC_SINT_COUNT];
+};
+
+/* Define SynIC control register. */
+union hv_synic_scontrol {
+       u64 as_uint64;
+       struct {
+               u64 enable : 1;
+               u64 reserved : 63;
+       } __packed;
+};
+
+/* Define the format of the SIEFP register */
+union hv_synic_siefp {
+       u64 as_uint64;
+       struct {
+               u64 siefp_enabled : 1;
+               u64 preserved : 11;
+               u64 base_siefp_gpa : 52;
+       } __packed;
+};
+
+union hv_synic_sirbp {
+       u64 as_uint64;
+       struct {
+               u64 sirbp_enabled : 1;
+               u64 preserved : 11;
+               u64 base_sirbp_gpa : 52;
+       } __packed;
+};
+
+union hv_interrupt_control {
+       u64 as_uint64;
+       struct {
+               u32 interrupt_type; /* enum hv_interrupt_type */
+               u32 level_triggered : 1;
+               u32 logical_dest_mode : 1;
+               u32 rsvd : 30;
+       } __packed;
+};
+
+struct hv_stimer_state {
+       struct {
+               u32 undelivered_msg_pending : 1;
+               u32 reserved : 31;
+       } __packed flags;
+       u32 resvd;
+       u64 config;
+       u64 count;
+       u64 adjustment;
+       u64 undelivered_exp_time;
+} __packed;
+
+struct hv_synthetic_timers_state {
+       struct hv_stimer_state timers[HV_SYNIC_STIMER_COUNT];
+       u64 reserved[5];
+} __packed;
+
+union hv_input_delete_vp {
+       u64 as_uint64[2];
+       struct {
+               u64 partition_id;
+               u32 vp_index;
+               u8 reserved[4];
+       } __packed;
+} __packed;
+
+struct hv_input_assert_virtual_interrupt {
+       u64 partition_id;
+       union hv_interrupt_control control;
+       u64 dest_addr; /* cpu's apic id */
+       u32 vector;
+       u8 target_vtl;
+       u8 rsvd_z0;
+       u16 rsvd_z1;
+} __packed;
+
+struct hv_input_create_port {
+       u64 port_partition_id;
+       union hv_port_id port_id;
+       u8 port_vtl;
+       u8 min_connection_vtl;
+       u16 padding;
+       u64 connection_partition_id;
+       struct hv_port_info port_info;
+       struct hv_proximity_domain_info proximity_domain_info;
+} __packed;
+
+union hv_input_delete_port {
+       u64 as_uint64[2];
+       struct {
+               u64 port_partition_id;
+               union hv_port_id port_id;
+               u32 reserved;
+       };
+} __packed;
+
+struct hv_input_connect_port {
+       u64 connection_partition_id;
+       union hv_connection_id connection_id;
+       u8 connection_vtl;
+       u8 rsvdz0;
+       u16 rsvdz1;
+       u64 port_partition_id;
+       union hv_port_id port_id;
+       u32 reserved2;
+       struct hv_connection_info connection_info;
+       struct hv_proximity_domain_info proximity_domain_info;
+} __packed;
+
+union hv_input_disconnect_port {
+       u64 as_uint64[2];
+       struct {
+               u64 connection_partition_id;
+               union hv_connection_id connection_id;
+               u32 is_doorbell: 1;
+               u32 reserved: 31;
+       } __packed;
+} __packed;
+
+union hv_input_notify_port_ring_empty {
+       u64 as_uint64;
+       struct {
+               u32 sint_index;
+               u32 reserved;
+       };
+} __packed;
+
+struct hv_vp_state_data_xsave {
+       u64 flags;
+       union hv_x64_xsave_xfem_register states;
+} __packed;
+
+/*
+ * For getting and setting VP state, there are two options based on the state 
type:
+ *
+ *     1.) Data that is accessed by PFNs in the input hypercall page. This is 
used
+ *         for state which may not fit into the hypercall pages.
+ *     2.) Data that is accessed directly in the input\output hypercall pages.
+ *         This is used for state that will always fit into the hypercall 
pages.
+ *
+ * In the future this could be dynamic based on the size if needed.
+ *
+ * Note these hypercalls have an 8-byte aligned variable header size as per 
the tlfs
+ */
+
+#define HV_GET_SET_VP_STATE_TYPE_PFN   BIT(31)
+
+enum hv_get_set_vp_state_type {
+       /* HvGetSetVpStateLocalInterruptControllerState - APIC/GIC state */
+       HV_GET_SET_VP_STATE_LAPIC_STATE      = 0 | HV_GET_SET_VP_STATE_TYPE_PFN,
+       HV_GET_SET_VP_STATE_XSAVE            = 1 | HV_GET_SET_VP_STATE_TYPE_PFN,
+       HV_GET_SET_VP_STATE_SIM_PAGE         = 2 | HV_GET_SET_VP_STATE_TYPE_PFN,
+       HV_GET_SET_VP_STATE_SIEF_PAGE        = 3 | HV_GET_SET_VP_STATE_TYPE_PFN,
+       HV_GET_SET_VP_STATE_SYNTHETIC_TIMERS = 4,
+};
+
+struct hv_vp_state_data {
+       u32 type;
+       u32 rsvd;
+       struct hv_vp_state_data_xsave xsave;
+} __packed;
+
+struct hv_input_get_vp_state {
+       u64 partition_id;
+       u32 vp_index;
+       u8 input_vtl;
+       u8 rsvd0;
+       u16 rsvd1;
+       struct hv_vp_state_data state_data;
+       u64 output_data_pfns[];
+} __packed;
+
+union hv_output_get_vp_state {
+       struct hv_synthetic_timers_state synthetic_timers_state;
+} __packed;
+
+union hv_input_set_vp_state_data {
+       u64 pfns;
+       u8 bytes;
+} __packed;
+
+struct hv_input_set_vp_state {
+       u64 partition_id;
+       u32 vp_index;
+       u8 input_vtl;
+       u8 rsvd0;
+       u16 rsvd1;
+       struct hv_vp_state_data state_data;
+       union hv_input_set_vp_state_data data[];
+} __packed;
+
+/*
+ * Dispatch state for the VP communicated by the hypervisor to the
+ * VP-dispatching thread in the root on return from HVCALL_DISPATCH_VP.
+ */
+enum hv_vp_dispatch_state {
+       HV_VP_DISPATCH_STATE_INVALID    = 0,
+       HV_VP_DISPATCH_STATE_BLOCKED    = 1,
+       HV_VP_DISPATCH_STATE_READY      = 2,
+};
+
+/*
+ * Dispatch event that caused the current dispatch state on return from
+ * HVCALL_DISPATCH_VP.
+ */
+enum hv_vp_dispatch_event {
+       HV_VP_DISPATCH_EVENT_INVALID    = 0x00000000,
+       HV_VP_DISPATCH_EVENT_SUSPEND    = 0x00000001,
+       HV_VP_DISPATCH_EVENT_INTERCEPT  = 0x00000002,
+};
+
+#define HV_ROOT_SCHEDULER_MAX_VPS_PER_CHILD_PARTITION   1024
+/* The maximum array size of HV_GENERIC_SET (vp_set) buffer */
+#define HV_GENERIC_SET_QWORD_COUNT(max) (((((max) - 1) >> 6) + 1) + 2)
+
+struct hv_vp_signal_bitset_scheduler_message {
+       u64 partition_id;
+       u32 overflow_count;
+       u16 vp_count;
+       u16 reserved;
+
+#define BITSET_BUFFER_SIZE \
+       
HV_GENERIC_SET_QWORD_COUNT(HV_ROOT_SCHEDULER_MAX_VPS_PER_CHILD_PARTITION)
+       union {
+               struct hv_vpset bitset;
+               u64 bitset_buffer[BITSET_BUFFER_SIZE];
+       } vp_bitset;
+#undef BITSET_BUFFER_SIZE
+} __packed;
+
+static_assert(sizeof(struct hv_vp_signal_bitset_scheduler_message) <=
+       (sizeof(struct hv_message) - sizeof(struct hv_message_header)));
+
+#define HV_MESSAGE_MAX_PARTITION_VP_PAIR_COUNT \
+       (((sizeof(struct hv_message) - sizeof(struct hv_message_header)) / \
+        (sizeof(u64 /* partition id */) + sizeof(u32 /* vp index */))) - 1)
+
+struct hv_vp_signal_pair_scheduler_message {
+       u32 overflow_count;
+       u8 vp_count;
+       u8 reserved1[3];
+
+       u64 partition_ids[HV_MESSAGE_MAX_PARTITION_VP_PAIR_COUNT];
+       u32 vp_indexes[HV_MESSAGE_MAX_PARTITION_VP_PAIR_COUNT];
+
+       u8 reserved2[4];
+} __packed;
+
+static_assert(sizeof(struct hv_vp_signal_pair_scheduler_message) ==
+       (sizeof(struct hv_message) - sizeof(struct hv_message_header)));
+
+/* Input and output structures for HVCALL_DISPATCH_VP */
+#define HV_DISPATCH_VP_FLAG_CLEAR_INTERCEPT_SUSPEND    0x1
+#define HV_DISPATCH_VP_FLAG_ENABLE_CALLER_INTERRUPTS   0x2
+#define HV_DISPATCH_VP_FLAG_SET_CALLER_SPEC_CTRL       0x4
+#define HV_DISPATCH_VP_FLAG_SKIP_VP_SPEC_FLUSH         0x8
+#define HV_DISPATCH_VP_FLAG_SKIP_CALLER_SPEC_FLUSH     0x10
+#define HV_DISPATCH_VP_FLAG_SKIP_CALLER_USER_SPEC_FLUSH        0x20
+
+struct hv_input_dispatch_vp {
+       u64 partition_id;
+       u32 vp_index;
+       u32 flags;
+       u64 time_slice; /* in 100ns */
+       u64 spec_ctrl;
+} __packed;
+
+struct hv_output_dispatch_vp {
+       u32 dispatch_state; /* enum hv_vp_dispatch_state */
+       u32 dispatch_event; /* enum hv_vp_dispatch_event */
+} __packed;
+
+#endif /* _HV_HVHDK_H */
diff --git a/include/hyperv/hvhdk_mini.h b/include/hyperv/hvhdk_mini.h
new file mode 100644
index 000000000000..46938b664f0c
--- /dev/null
+++ b/include/hyperv/hvhdk_mini.h
@@ -0,0 +1,310 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Type definitions for the Microsoft Hypervisor.
+ */
+#ifndef _HV_HVHDK_MINI_H
+#define _HV_HVHDK_MINI_H
+
+#include "hvgdk_mini.h"
+
+/*
+ * Doorbell connection_info flags.
+ */
+#define HV_DOORBELL_FLAG_TRIGGER_SIZE_MASK  0x00000007
+#define HV_DOORBELL_FLAG_TRIGGER_SIZE_ANY   0x00000000
+#define HV_DOORBELL_FLAG_TRIGGER_SIZE_BYTE  0x00000001
+#define HV_DOORBELL_FLAG_TRIGGER_SIZE_WORD  0x00000002
+#define HV_DOORBELL_FLAG_TRIGGER_SIZE_DWORD 0x00000003
+#define HV_DOORBELL_FLAG_TRIGGER_SIZE_QWORD 0x00000004
+#define HV_DOORBELL_FLAG_TRIGGER_ANY_VALUE  0x80000000
+
+/* Each generic set contains 64 elements */
+#define HV_GENERIC_SET_SHIFT           (6)
+#define HV_GENERIC_SET_MASK            (63)
+
+enum hv_generic_set_format {
+       HV_GENERIC_SET_SPARSE_4K,
+       HV_GENERIC_SET_ALL,
+};
+
+enum hv_scheduler_type {
+       HV_SCHEDULER_TYPE_LP = 1, /* Classic scheduler w/o SMT */
+       HV_SCHEDULER_TYPE_LP_SMT = 2, /* Classic scheduler w/ SMT */
+       HV_SCHEDULER_TYPE_CORE_SMT = 3, /* Core scheduler */
+       HV_SCHEDULER_TYPE_ROOT = 4, /* Root / integrated scheduler */
+       HV_SCHEDULER_TYPE_MAX
+};
+
+enum hv_partition_property_code {
+       /* Privilege properties */
+       HV_PARTITION_PROPERTY_PRIVILEGE_FLAGS                   = 0x00010000,
+       HV_PARTITION_PROPERTY_SYNTHETIC_PROC_FEATURES           = 0x00010001,
+
+       /* Resource properties */
+       HV_PARTITION_PROPERTY_GPA_PAGE_ACCESS_TRACKING          = 0x00050005,
+       HV_PARTITION_PROPERTY_UNIMPLEMENTED_MSR_ACTION          = 0x00050017,
+
+       /* Compatibility properties */
+       HV_PARTITION_PROPERTY_PROCESSOR_XSAVE_FEATURES          = 0x00060002,
+       HV_PARTITION_PROPERTY_MAX_XSAVE_DATA_SIZE               = 0x00060008,
+       HV_PARTITION_PROPERTY_PROCESSOR_CLOCK_FREQUENCY         = 0x00060009,
+};
+
+enum hv_system_property {
+       /* Add more values when needed */
+       HV_SYSTEM_PROPERTY_SCHEDULER_TYPE = 15,
+};
+
+struct hv_input_get_system_property {
+       u32 property_id; /* enum hv_system_property */
+       union {
+               u32 as_uint32;
+               /* More fields to be filled in when needed */
+       };
+} __packed;
+
+struct hv_output_get_system_property {
+       union {
+               u32 scheduler_type; /* enum hv_scheduler_type */
+       };
+} __packed;
+
+struct hv_proximity_domain_flags {
+       u32 proximity_preferred : 1;
+       u32 reserved : 30;
+       u32 proximity_info_valid : 1;
+} __packed;
+
+struct hv_proximity_domain_info {
+       u32 domain_id;
+       struct hv_proximity_domain_flags flags;
+} __packed;
+
+/* HvDepositMemory hypercall */
+struct hv_deposit_memory {     /* HV_INPUT_DEPOSIT_MEMORY */
+       u64 partition_id;
+       u64 gpa_page_list[];
+} __packed;
+
+struct hv_input_withdraw_memory {
+       u64 partition_id;
+       struct hv_proximity_domain_info proximity_domain_info;
+} __packed;
+
+struct hv_output_withdraw_memory {
+       DECLARE_FLEX_ARRAY(u64, gpa_page_list);
+} __packed;
+
+/* HV Map GPA (Guest Physical Address) Flags */
+#define HV_MAP_GPA_PERMISSIONS_NONE           0x0
+#define HV_MAP_GPA_READABLE                   0x1
+#define HV_MAP_GPA_WRITABLE                   0x2
+#define HV_MAP_GPA_KERNEL_EXECUTABLE          0x4
+#define HV_MAP_GPA_USER_EXECUTABLE            0x8
+#define HV_MAP_GPA_EXECUTABLE                 0xC
+#define HV_MAP_GPA_PERMISSIONS_MASK           0xF
+#define HV_MAP_GPA_ADJUSTABLE              0x8000
+#define HV_MAP_GPA_NO_ACCESS              0x10000
+#define HV_MAP_GPA_NOT_CACHED            0x200000
+#define HV_MAP_GPA_LARGE_PAGE          0x80000000
+
+struct hv_input_map_gpa_pages {
+       u64 target_partition_id;
+       u64 target_gpa_base;
+       u32 map_flags;
+       u32 padding;
+       u64 source_gpa_page_list[];
+} __packed;
+
+union hv_gpa_page_access_state_flags {
+       struct {
+               u64 clear_accessed : 1;
+               u64 set_accessed : 1;
+               u64 clear_dirty : 1;
+               u64 set_dirty : 1;
+               u64 reserved : 60;
+       } __packed;
+       u64 as_uint64;
+};
+
+struct hv_input_get_gpa_pages_access_state {
+       u64  partition_id;
+       union hv_gpa_page_access_state_flags flags;
+       u64 hv_gpa_page_number;
+} __packed;
+
+union hv_gpa_page_access_state {
+       struct {
+               u8 accessed : 1;
+               u8 dirty : 1;
+               u8 reserved: 6;
+       };
+       u8 as_uint8;
+} __packed;
+
+struct hv_lp_startup_status {
+       u64 hv_status;
+       u64 substatus1;
+       u64 substatus2;
+       u64 substatus3;
+       u64 substatus4;
+       u64 substatus5;
+       u64 substatus6;
+} __packed;
+
+struct hv_input_add_logical_processor {
+       u32 lp_index;
+       u32 apic_id;
+       struct hv_proximity_domain_info proximity_domain_info;
+} __packed;
+
+struct hv_output_add_logical_processor {
+       struct hv_lp_startup_status startup_status;
+} __packed;
+
+enum { /* HV_SUBNODE_TYPE */
+       HV_SUBNODE_ANY          = 0,
+       HV_SUBNODE_SOCKET,
+       HV_SUBNODE_CLUSTER,
+       HV_SUBNODE_L3,
+       HV_SUBNODE_COUNT,
+       HV_SUBNODE_INVALID      = -1
+};
+
+struct hv_create_vp {  /* HV_INPUT_CREATE_VP */
+       u64 partition_id;
+       u32 vp_index;
+       u8 padding[3];
+       u8 subnode_type;
+       u64 subnode_id;
+       struct hv_proximity_domain_info proximity_domain_info;
+       u64 flags;
+} __packed;
+
+/* HV_INTERRUPT_TRIGGER_MODE */
+enum hv_interrupt_trigger_mode {
+       HV_INTERRUPT_TRIGGER_MODE_EDGE  = 0,
+       HV_INTERRUPT_TRIGGER_MODE_LEVEL = 1,
+};
+
+/* HV_DEVICE_INTERRUPT_DESCRIPTOR */
+struct hv_device_interrupt_descriptor {
+       u32 interrupt_type;
+       u32 trigger_mode;
+       u32 vector_count;
+       u32 reserved;
+       struct hv_device_interrupt_target target;
+} __packed;
+
+/* HV_INPUT_MAP_DEVICE_INTERRUPT */
+struct hv_input_map_device_interrupt {
+       u64 partition_id;
+       u64 device_id;
+       u32 flags;
+       u32 base_irt_idx;
+       struct hv_interrupt_entry logical_interrupt_entry;
+       struct hv_device_interrupt_descriptor interrupt_descriptor;
+} __packed;
+
+/* HV_OUTPUT_MAP_DEVICE_INTERRUPT */
+struct hv_output_map_device_interrupt {
+       struct hv_interrupt_entry interrupt_entry;
+} __packed;
+
+/* HV_INPUT_UNMAP_DEVICE_INTERRUPT */
+struct hv_input_unmap_device_interrupt {
+       u64 partition_id;
+       u64 device_id;
+       struct hv_interrupt_entry interrupt_entry;
+       u32 flags;
+} __packed;
+
+#define HV_SOURCE_SHADOW_NONE              0x0
+#define HV_SOURCE_SHADOW_BRIDGE_BUS_RANGE   0x1
+
+struct hv_send_ipi_ex { /* HV_INPUT_SEND_SYNTHETIC_CLUSTER_IPI_EX */
+       u32 vector;
+       u32 reserved;
+       struct hv_vpset vp_set;
+} __packed;
+
+typedef u16 hv_pci_rid;                /* HV_PCI_RID */
+typedef u16 hv_pci_segment;    /* HV_PCI_SEGMENT */
+typedef u64 hv_logical_device_id;
+union hv_pci_bdf {     /* HV_PCI_BDF */
+       u16 as_uint16;
+
+       struct {
+               u8 function : 3;
+               u8 device : 5;
+               u8 bus;
+       };
+} __packed;
+
+union hv_pci_bus_range {
+       u16 as_uint16;
+
+       struct {
+               u8 subordinate_bus;
+               u8 secondary_bus;
+       };
+} __packed;
+
+enum hv_device_type {          /* HV_DEVICE_TYPE */
+       HV_DEVICE_TYPE_LOGICAL  = 0,
+       HV_DEVICE_TYPE_PCI      = 1,
+       HV_DEVICE_TYPE_IOAPIC   = 2,
+       HV_DEVICE_TYPE_ACPI     = 3,
+};
+
+union hv_device_id {           /* HV_DEVICE_ID */
+       u64 as_uint64;
+
+       struct {
+               u64 reserved0 : 62;
+               u64 device_type : 2;
+       };
+
+       /* HV_DEVICE_TYPE_LOGICAL */
+       struct {
+               u64 id : 62;
+               u64 device_type : 2;
+       } logical;
+
+       /* HV_DEVICE_TYPE_PCI */
+       struct {
+               union {
+                       hv_pci_rid rid;
+                       union hv_pci_bdf bdf;
+               };
+
+               hv_pci_segment segment;
+               union hv_pci_bus_range shadow_bus_range;
+
+               u16 phantom_function_bits : 2;
+               u16 source_shadow : 1;
+
+               u16 rsvdz0 : 11;
+               u16 device_type : 2;
+       } pci;
+
+       /* HV_DEVICE_TYPE_IOAPIC */
+       struct {
+               u8 ioapic_id;
+               u8 rsvdz0;
+               u16 rsvdz1;
+               u16 rsvdz2;
+
+               u16 rsvdz3 : 14;
+               u16 device_type : 2;
+       } ioapic;
+
+       /* HV_DEVICE_TYPE_ACPI */
+       struct {
+               u32 input_mapping_base;
+               u32 input_mapping_count : 30;
+               u32 device_type : 2;
+       } acpi;
+} __packed;
+
+#endif /* _HV_HVHDK_MINI_H */
-- 
2.34.1


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