1 /* 2 * Definitions for Hyper-V guest/hypervisor interaction 3 * 4 * Copyright (c) 2017-2018 Virtuozzo International GmbH. 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 */ 9 10 #ifndef HW_HYPERV_HYPERV_PROTO_H 11 #define HW_HYPERV_HYPERV_PROTO_H 12 13 #include "qemu/bitmap.h" 14 15 /* 16 * Hypercall status code 17 */ 18 #define HV_STATUS_SUCCESS 0 19 #define HV_STATUS_INVALID_HYPERCALL_CODE 2 20 #define HV_STATUS_INVALID_HYPERCALL_INPUT 3 21 #define HV_STATUS_INVALID_ALIGNMENT 4 22 #define HV_STATUS_INVALID_PARAMETER 5 23 #define HV_STATUS_INSUFFICIENT_MEMORY 11 24 #define HV_STATUS_INVALID_CONNECTION_ID 18 25 #define HV_STATUS_INSUFFICIENT_BUFFERS 19 26 27 /* 28 * Hypercall numbers 29 */ 30 #define HV_POST_MESSAGE 0x005c 31 #define HV_SIGNAL_EVENT 0x005d 32 #define HV_HYPERCALL_FAST (1u << 16) 33 34 /* 35 * Message size 36 */ 37 #define HV_MESSAGE_PAYLOAD_SIZE 240 38 39 /* 40 * Message types 41 */ 42 #define HV_MESSAGE_NONE 0x00000000 43 #define HV_MESSAGE_VMBUS 0x00000001 44 #define HV_MESSAGE_UNMAPPED_GPA 0x80000000 45 #define HV_MESSAGE_GPA_INTERCEPT 0x80000001 46 #define HV_MESSAGE_TIMER_EXPIRED 0x80000010 47 #define HV_MESSAGE_INVALID_VP_REGISTER_VALUE 0x80000020 48 #define HV_MESSAGE_UNRECOVERABLE_EXCEPTION 0x80000021 49 #define HV_MESSAGE_UNSUPPORTED_FEATURE 0x80000022 50 #define HV_MESSAGE_EVENTLOG_BUFFERCOMPLETE 0x80000040 51 #define HV_MESSAGE_X64_IOPORT_INTERCEPT 0x80010000 52 #define HV_MESSAGE_X64_MSR_INTERCEPT 0x80010001 53 #define HV_MESSAGE_X64_CPUID_INTERCEPT 0x80010002 54 #define HV_MESSAGE_X64_EXCEPTION_INTERCEPT 0x80010003 55 #define HV_MESSAGE_X64_APIC_EOI 0x80010004 56 #define HV_MESSAGE_X64_LEGACY_FP_ERROR 0x80010005 57 58 /* 59 * Message flags 60 */ 61 #define HV_MESSAGE_FLAG_PENDING 0x1 62 63 /* 64 * Number of synthetic interrupts 65 */ 66 #define HV_SINT_COUNT 16 67 68 /* 69 * Event flags number per SINT 70 */ 71 #define HV_EVENT_FLAGS_COUNT (256 * 8) 72 73 /* 74 * Connection id valid bits 75 */ 76 #define HV_CONNECTION_ID_MASK 0x00ffffff 77 78 /* 79 * Input structure for POST_MESSAGE hypercall 80 */ 81 struct hyperv_post_message_input { 82 uint32_t connection_id; 83 uint32_t _reserved; 84 uint32_t message_type; 85 uint32_t payload_size; 86 uint8_t payload[HV_MESSAGE_PAYLOAD_SIZE]; 87 }; 88 89 /* 90 * Input structure for SIGNAL_EVENT hypercall 91 */ 92 struct hyperv_signal_event_input { 93 uint32_t connection_id; 94 uint16_t flag_number; 95 uint16_t _reserved_zero; 96 }; 97 98 /* 99 * SynIC message structures 100 */ 101 struct hyperv_message_header { 102 uint32_t message_type; 103 uint8_t payload_size; 104 uint8_t message_flags; /* HV_MESSAGE_FLAG_XX */ 105 uint8_t _reserved[2]; 106 uint64_t sender; 107 }; 108 109 struct hyperv_message { 110 struct hyperv_message_header header; 111 uint8_t payload[HV_MESSAGE_PAYLOAD_SIZE]; 112 }; 113 114 struct hyperv_message_page { 115 struct hyperv_message slot[HV_SINT_COUNT]; 116 }; 117 118 /* 119 * SynIC event flags structures 120 */ 121 struct hyperv_event_flags { 122 DECLARE_BITMAP(flags, HV_EVENT_FLAGS_COUNT); 123 }; 124 125 struct hyperv_event_flags_page { 126 struct hyperv_event_flags slot[HV_SINT_COUNT]; 127 }; 128 129 #endif 130