1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * tools/testing/selftests/kvm/include/x86_64/hyperv.h 4 * 5 * Copyright (C) 2021, Red Hat, Inc. 6 * 7 */ 8 9 #ifndef SELFTEST_KVM_HYPERV_H 10 #define SELFTEST_KVM_HYPERV_H 11 12 #define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS 0x40000000 13 #define HYPERV_CPUID_INTERFACE 0x40000001 14 #define HYPERV_CPUID_VERSION 0x40000002 15 #define HYPERV_CPUID_FEATURES 0x40000003 16 #define HYPERV_CPUID_ENLIGHTMENT_INFO 0x40000004 17 #define HYPERV_CPUID_IMPLEMENT_LIMITS 0x40000005 18 #define HYPERV_CPUID_CPU_MANAGEMENT_FEATURES 0x40000007 19 #define HYPERV_CPUID_NESTED_FEATURES 0x4000000A 20 #define HYPERV_CPUID_SYNDBG_VENDOR_AND_MAX_FUNCTIONS 0x40000080 21 #define HYPERV_CPUID_SYNDBG_INTERFACE 0x40000081 22 #define HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES 0x40000082 23 24 #define HV_X64_MSR_GUEST_OS_ID 0x40000000 25 #define HV_X64_MSR_HYPERCALL 0x40000001 26 #define HV_X64_MSR_VP_INDEX 0x40000002 27 #define HV_X64_MSR_RESET 0x40000003 28 #define HV_X64_MSR_VP_RUNTIME 0x40000010 29 #define HV_X64_MSR_TIME_REF_COUNT 0x40000020 30 #define HV_X64_MSR_REFERENCE_TSC 0x40000021 31 #define HV_X64_MSR_TSC_FREQUENCY 0x40000022 32 #define HV_X64_MSR_APIC_FREQUENCY 0x40000023 33 #define HV_X64_MSR_EOI 0x40000070 34 #define HV_X64_MSR_ICR 0x40000071 35 #define HV_X64_MSR_TPR 0x40000072 36 #define HV_X64_MSR_VP_ASSIST_PAGE 0x40000073 37 #define HV_X64_MSR_SCONTROL 0x40000080 38 #define HV_X64_MSR_SVERSION 0x40000081 39 #define HV_X64_MSR_SIEFP 0x40000082 40 #define HV_X64_MSR_SIMP 0x40000083 41 #define HV_X64_MSR_EOM 0x40000084 42 #define HV_X64_MSR_SINT0 0x40000090 43 #define HV_X64_MSR_SINT1 0x40000091 44 #define HV_X64_MSR_SINT2 0x40000092 45 #define HV_X64_MSR_SINT3 0x40000093 46 #define HV_X64_MSR_SINT4 0x40000094 47 #define HV_X64_MSR_SINT5 0x40000095 48 #define HV_X64_MSR_SINT6 0x40000096 49 #define HV_X64_MSR_SINT7 0x40000097 50 #define HV_X64_MSR_SINT8 0x40000098 51 #define HV_X64_MSR_SINT9 0x40000099 52 #define HV_X64_MSR_SINT10 0x4000009A 53 #define HV_X64_MSR_SINT11 0x4000009B 54 #define HV_X64_MSR_SINT12 0x4000009C 55 #define HV_X64_MSR_SINT13 0x4000009D 56 #define HV_X64_MSR_SINT14 0x4000009E 57 #define HV_X64_MSR_SINT15 0x4000009F 58 #define HV_X64_MSR_STIMER0_CONFIG 0x400000B0 59 #define HV_X64_MSR_STIMER0_COUNT 0x400000B1 60 #define HV_X64_MSR_STIMER1_CONFIG 0x400000B2 61 #define HV_X64_MSR_STIMER1_COUNT 0x400000B3 62 #define HV_X64_MSR_STIMER2_CONFIG 0x400000B4 63 #define HV_X64_MSR_STIMER2_COUNT 0x400000B5 64 #define HV_X64_MSR_STIMER3_CONFIG 0x400000B6 65 #define HV_X64_MSR_STIMER3_COUNT 0x400000B7 66 #define HV_X64_MSR_GUEST_IDLE 0x400000F0 67 #define HV_X64_MSR_CRASH_P0 0x40000100 68 #define HV_X64_MSR_CRASH_P1 0x40000101 69 #define HV_X64_MSR_CRASH_P2 0x40000102 70 #define HV_X64_MSR_CRASH_P3 0x40000103 71 #define HV_X64_MSR_CRASH_P4 0x40000104 72 #define HV_X64_MSR_CRASH_CTL 0x40000105 73 #define HV_X64_MSR_REENLIGHTENMENT_CONTROL 0x40000106 74 #define HV_X64_MSR_TSC_EMULATION_CONTROL 0x40000107 75 #define HV_X64_MSR_TSC_EMULATION_STATUS 0x40000108 76 #define HV_X64_MSR_TSC_INVARIANT_CONTROL 0x40000118 77 78 #define HV_X64_MSR_SYNDBG_CONTROL 0x400000F1 79 #define HV_X64_MSR_SYNDBG_STATUS 0x400000F2 80 #define HV_X64_MSR_SYNDBG_SEND_BUFFER 0x400000F3 81 #define HV_X64_MSR_SYNDBG_RECV_BUFFER 0x400000F4 82 #define HV_X64_MSR_SYNDBG_PENDING_BUFFER 0x400000F5 83 #define HV_X64_MSR_SYNDBG_OPTIONS 0x400000FF 84 85 /* HYPERV_CPUID_FEATURES.EAX */ 86 #define HV_MSR_VP_RUNTIME_AVAILABLE BIT(0) 87 #define HV_MSR_TIME_REF_COUNT_AVAILABLE BIT(1) 88 #define HV_MSR_SYNIC_AVAILABLE BIT(2) 89 #define HV_MSR_SYNTIMER_AVAILABLE BIT(3) 90 #define HV_MSR_APIC_ACCESS_AVAILABLE BIT(4) 91 #define HV_MSR_HYPERCALL_AVAILABLE BIT(5) 92 #define HV_MSR_VP_INDEX_AVAILABLE BIT(6) 93 #define HV_MSR_RESET_AVAILABLE BIT(7) 94 #define HV_MSR_STAT_PAGES_AVAILABLE BIT(8) 95 #define HV_MSR_REFERENCE_TSC_AVAILABLE BIT(9) 96 #define HV_MSR_GUEST_IDLE_AVAILABLE BIT(10) 97 #define HV_ACCESS_FREQUENCY_MSRS BIT(11) 98 #define HV_ACCESS_REENLIGHTENMENT BIT(13) 99 #define HV_ACCESS_TSC_INVARIANT BIT(15) 100 101 /* HYPERV_CPUID_FEATURES.EBX */ 102 #define HV_CREATE_PARTITIONS BIT(0) 103 #define HV_ACCESS_PARTITION_ID BIT(1) 104 #define HV_ACCESS_MEMORY_POOL BIT(2) 105 #define HV_ADJUST_MESSAGE_BUFFERS BIT(3) 106 #define HV_POST_MESSAGES BIT(4) 107 #define HV_SIGNAL_EVENTS BIT(5) 108 #define HV_CREATE_PORT BIT(6) 109 #define HV_CONNECT_PORT BIT(7) 110 #define HV_ACCESS_STATS BIT(8) 111 #define HV_DEBUGGING BIT(11) 112 #define HV_CPU_MANAGEMENT BIT(12) 113 #define HV_ISOLATION BIT(22) 114 115 /* HYPERV_CPUID_FEATURES.EDX */ 116 #define HV_X64_MWAIT_AVAILABLE BIT(0) 117 #define HV_X64_GUEST_DEBUGGING_AVAILABLE BIT(1) 118 #define HV_X64_PERF_MONITOR_AVAILABLE BIT(2) 119 #define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE BIT(3) 120 #define HV_X64_HYPERCALL_XMM_INPUT_AVAILABLE BIT(4) 121 #define HV_X64_GUEST_IDLE_STATE_AVAILABLE BIT(5) 122 #define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE BIT(8) 123 #define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE BIT(10) 124 #define HV_FEATURE_DEBUG_MSRS_AVAILABLE BIT(11) 125 #define HV_STIMER_DIRECT_MODE_AVAILABLE BIT(19) 126 127 /* HYPERV_CPUID_ENLIGHTMENT_INFO.EAX */ 128 #define HV_X64_AS_SWITCH_RECOMMENDED BIT(0) 129 #define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED BIT(1) 130 #define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED BIT(2) 131 #define HV_X64_APIC_ACCESS_RECOMMENDED BIT(3) 132 #define HV_X64_SYSTEM_RESET_RECOMMENDED BIT(4) 133 #define HV_X64_RELAXED_TIMING_RECOMMENDED BIT(5) 134 #define HV_DEPRECATING_AEOI_RECOMMENDED BIT(9) 135 #define HV_X64_CLUSTER_IPI_RECOMMENDED BIT(10) 136 #define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED BIT(11) 137 #define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED BIT(14) 138 139 /* HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES.EAX */ 140 #define HV_X64_SYNDBG_CAP_ALLOW_KERNEL_DEBUGGING BIT(1) 141 142 /* Hypercalls */ 143 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE 0x0002 144 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003 145 #define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008 146 #define HVCALL_SEND_IPI 0x000b 147 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013 148 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX 0x0014 149 #define HVCALL_SEND_IPI_EX 0x0015 150 #define HVCALL_GET_PARTITION_ID 0x0046 151 #define HVCALL_DEPOSIT_MEMORY 0x0048 152 #define HVCALL_CREATE_VP 0x004e 153 #define HVCALL_GET_VP_REGISTERS 0x0050 154 #define HVCALL_SET_VP_REGISTERS 0x0051 155 #define HVCALL_POST_MESSAGE 0x005c 156 #define HVCALL_SIGNAL_EVENT 0x005d 157 #define HVCALL_POST_DEBUG_DATA 0x0069 158 #define HVCALL_RETRIEVE_DEBUG_DATA 0x006a 159 #define HVCALL_RESET_DEBUG_SESSION 0x006b 160 #define HVCALL_ADD_LOGICAL_PROCESSOR 0x0076 161 #define HVCALL_MAP_DEVICE_INTERRUPT 0x007c 162 #define HVCALL_UNMAP_DEVICE_INTERRUPT 0x007d 163 #define HVCALL_RETARGET_INTERRUPT 0x007e 164 #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af 165 #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0 166 167 #define HV_FLUSH_ALL_PROCESSORS BIT(0) 168 #define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) 169 #define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) 170 #define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3) 171 172 /* hypercall status code */ 173 #define HV_STATUS_SUCCESS 0 174 #define HV_STATUS_INVALID_HYPERCALL_CODE 2 175 #define HV_STATUS_INVALID_HYPERCALL_INPUT 3 176 #define HV_STATUS_INVALID_ALIGNMENT 4 177 #define HV_STATUS_INVALID_PARAMETER 5 178 #define HV_STATUS_ACCESS_DENIED 6 179 #define HV_STATUS_OPERATION_DENIED 8 180 #define HV_STATUS_INSUFFICIENT_MEMORY 11 181 #define HV_STATUS_INVALID_PORT_ID 17 182 #define HV_STATUS_INVALID_CONNECTION_ID 18 183 #define HV_STATUS_INSUFFICIENT_BUFFERS 19 184 185 /* hypercall options */ 186 #define HV_HYPERCALL_FAST_BIT BIT(16) 187 188 static inline uint8_t hyperv_hypercall(u64 control, vm_vaddr_t input_address, 189 vm_vaddr_t output_address, 190 uint64_t *hv_status) 191 { 192 uint64_t error_code; 193 uint8_t vector; 194 195 /* Note both the hypercall and the "asm safe" clobber r9-r11. */ 196 asm volatile("mov %[output_address], %%r8\n\t" 197 KVM_ASM_SAFE("vmcall") 198 : "=a" (*hv_status), 199 "+c" (control), "+d" (input_address), 200 KVM_ASM_SAFE_OUTPUTS(vector, error_code) 201 : [output_address] "r"(output_address), 202 "a" (-EFAULT) 203 : "cc", "memory", "r8", KVM_ASM_SAFE_CLOBBERS); 204 return vector; 205 } 206 207 /* Proper HV_X64_MSR_GUEST_OS_ID value */ 208 #define HYPERV_LINUX_OS_ID ((u64)0x8100 << 48) 209 210 #endif /* !SELFTEST_KVM_HYPERV_H */ 211