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_PORT_ID 17 25 #define HV_STATUS_INVALID_CONNECTION_ID 18 26 #define HV_STATUS_INSUFFICIENT_BUFFERS 19 27 28 /* 29 * Hypercall numbers 30 */ 31 #define HV_POST_MESSAGE 0x005c 32 #define HV_SIGNAL_EVENT 0x005d 33 #define HV_HYPERCALL_FAST (1u << 16) 34 35 /* 36 * Message size 37 */ 38 #define HV_MESSAGE_PAYLOAD_SIZE 240 39 40 /* 41 * Message types 42 */ 43 #define HV_MESSAGE_NONE 0x00000000 44 #define HV_MESSAGE_VMBUS 0x00000001 45 #define HV_MESSAGE_UNMAPPED_GPA 0x80000000 46 #define HV_MESSAGE_GPA_INTERCEPT 0x80000001 47 #define HV_MESSAGE_TIMER_EXPIRED 0x80000010 48 #define HV_MESSAGE_INVALID_VP_REGISTER_VALUE 0x80000020 49 #define HV_MESSAGE_UNRECOVERABLE_EXCEPTION 0x80000021 50 #define HV_MESSAGE_UNSUPPORTED_FEATURE 0x80000022 51 #define HV_MESSAGE_EVENTLOG_BUFFERCOMPLETE 0x80000040 52 #define HV_MESSAGE_X64_IOPORT_INTERCEPT 0x80010000 53 #define HV_MESSAGE_X64_MSR_INTERCEPT 0x80010001 54 #define HV_MESSAGE_X64_CPUID_INTERCEPT 0x80010002 55 #define HV_MESSAGE_X64_EXCEPTION_INTERCEPT 0x80010003 56 #define HV_MESSAGE_X64_APIC_EOI 0x80010004 57 #define HV_MESSAGE_X64_LEGACY_FP_ERROR 0x80010005 58 59 /* 60 * Message flags 61 */ 62 #define HV_MESSAGE_FLAG_PENDING 0x1 63 64 /* 65 * Number of synthetic interrupts 66 */ 67 #define HV_SINT_COUNT 16 68 69 /* 70 * Event flags number per SINT 71 */ 72 #define HV_EVENT_FLAGS_COUNT (256 * 8) 73 74 /* 75 * Connection id valid bits 76 */ 77 #define HV_CONNECTION_ID_MASK 0x00ffffff 78 79 /* 80 * Input structure for POST_MESSAGE hypercall 81 */ 82 struct hyperv_post_message_input { 83 uint32_t connection_id; 84 uint32_t _reserved; 85 uint32_t message_type; 86 uint32_t payload_size; 87 uint8_t payload[HV_MESSAGE_PAYLOAD_SIZE]; 88 }; 89 90 /* 91 * Input structure for SIGNAL_EVENT hypercall 92 */ 93 struct hyperv_signal_event_input { 94 uint32_t connection_id; 95 uint16_t flag_number; 96 uint16_t _reserved_zero; 97 }; 98 99 /* 100 * SynIC message structures 101 */ 102 struct hyperv_message_header { 103 uint32_t message_type; 104 uint8_t payload_size; 105 uint8_t message_flags; /* HV_MESSAGE_FLAG_XX */ 106 uint8_t _reserved[2]; 107 uint64_t sender; 108 }; 109 110 struct hyperv_message { 111 struct hyperv_message_header header; 112 uint8_t payload[HV_MESSAGE_PAYLOAD_SIZE]; 113 }; 114 115 struct hyperv_message_page { 116 struct hyperv_message slot[HV_SINT_COUNT]; 117 }; 118 119 /* 120 * SynIC event flags structures 121 */ 122 struct hyperv_event_flags { 123 DECLARE_BITMAP(flags, HV_EVENT_FLAGS_COUNT); 124 }; 125 126 struct hyperv_event_flags_page { 127 struct hyperv_event_flags slot[HV_SINT_COUNT]; 128 }; 129 130 #endif 131