1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * This file contains common definitions for working with Enlightened VMCS which 4 * are used both by Hyper-V on KVM and KVM on Hyper-V. 5 */ 6 #ifndef __KVM_X86_VMX_HYPERV_EVMCS_H 7 #define __KVM_X86_VMX_HYPERV_EVMCS_H 8 9 #include <hyperv/hvhdk.h> 10 11 #include "capabilities.h" 12 #include "vmcs12.h" 13 14 #define KVM_EVMCS_VERSION 1 15 16 /* 17 * Enlightened VMCSv1 doesn't support these: 18 * 19 * POSTED_INTR_NV = 0x00000002, 20 * GUEST_INTR_STATUS = 0x00000810, 21 * APIC_ACCESS_ADDR = 0x00002014, 22 * POSTED_INTR_DESC_ADDR = 0x00002016, 23 * EOI_EXIT_BITMAP0 = 0x0000201c, 24 * EOI_EXIT_BITMAP1 = 0x0000201e, 25 * EOI_EXIT_BITMAP2 = 0x00002020, 26 * EOI_EXIT_BITMAP3 = 0x00002022, 27 * GUEST_PML_INDEX = 0x00000812, 28 * PML_ADDRESS = 0x0000200e, 29 * VM_FUNCTION_CONTROL = 0x00002018, 30 * EPTP_LIST_ADDRESS = 0x00002024, 31 * VMREAD_BITMAP = 0x00002026, 32 * VMWRITE_BITMAP = 0x00002028, 33 * 34 * TSC_MULTIPLIER = 0x00002032, 35 * PLE_GAP = 0x00004020, 36 * PLE_WINDOW = 0x00004022, 37 * VMX_PREEMPTION_TIMER_VALUE = 0x0000482E, 38 * 39 * Currently unsupported in KVM: 40 * GUEST_IA32_RTIT_CTL = 0x00002814, 41 */ 42 #define EVMCS1_SUPPORTED_PINCTRL \ 43 (PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR | \ 44 PIN_BASED_EXT_INTR_MASK | \ 45 PIN_BASED_NMI_EXITING | \ 46 PIN_BASED_VIRTUAL_NMIS) 47 48 #define EVMCS1_SUPPORTED_EXEC_CTRL \ 49 (CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR | \ 50 CPU_BASED_HLT_EXITING | \ 51 CPU_BASED_CR3_LOAD_EXITING | \ 52 CPU_BASED_CR3_STORE_EXITING | \ 53 CPU_BASED_UNCOND_IO_EXITING | \ 54 CPU_BASED_MOV_DR_EXITING | \ 55 CPU_BASED_USE_TSC_OFFSETTING | \ 56 CPU_BASED_MWAIT_EXITING | \ 57 CPU_BASED_MONITOR_EXITING | \ 58 CPU_BASED_INVLPG_EXITING | \ 59 CPU_BASED_RDPMC_EXITING | \ 60 CPU_BASED_INTR_WINDOW_EXITING | \ 61 CPU_BASED_CR8_LOAD_EXITING | \ 62 CPU_BASED_CR8_STORE_EXITING | \ 63 CPU_BASED_RDTSC_EXITING | \ 64 CPU_BASED_TPR_SHADOW | \ 65 CPU_BASED_USE_IO_BITMAPS | \ 66 CPU_BASED_MONITOR_TRAP_FLAG | \ 67 CPU_BASED_USE_MSR_BITMAPS | \ 68 CPU_BASED_NMI_WINDOW_EXITING | \ 69 CPU_BASED_PAUSE_EXITING | \ 70 CPU_BASED_ACTIVATE_SECONDARY_CONTROLS) 71 72 #define EVMCS1_SUPPORTED_2NDEXEC \ 73 (SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE | \ 74 SECONDARY_EXEC_WBINVD_EXITING | \ 75 SECONDARY_EXEC_ENABLE_VPID | \ 76 SECONDARY_EXEC_ENABLE_EPT | \ 77 SECONDARY_EXEC_UNRESTRICTED_GUEST | \ 78 SECONDARY_EXEC_DESC | \ 79 SECONDARY_EXEC_ENABLE_RDTSCP | \ 80 SECONDARY_EXEC_ENABLE_INVPCID | \ 81 SECONDARY_EXEC_ENABLE_XSAVES | \ 82 SECONDARY_EXEC_RDSEED_EXITING | \ 83 SECONDARY_EXEC_RDRAND_EXITING | \ 84 SECONDARY_EXEC_TSC_SCALING | \ 85 SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE | \ 86 SECONDARY_EXEC_PT_USE_GPA | \ 87 SECONDARY_EXEC_PT_CONCEAL_VMX | \ 88 SECONDARY_EXEC_BUS_LOCK_DETECTION | \ 89 SECONDARY_EXEC_NOTIFY_VM_EXITING | \ 90 SECONDARY_EXEC_MODE_BASED_EPT_EXEC | \ 91 SECONDARY_EXEC_ENCLS_EXITING) 92 93 #define EVMCS1_SUPPORTED_3RDEXEC (0ULL) 94 95 #define EVMCS1_SUPPORTED_VMEXIT_CTRL \ 96 (VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR | \ 97 VM_EXIT_SAVE_DEBUG_CONTROLS | \ 98 VM_EXIT_ACK_INTR_ON_EXIT | \ 99 VM_EXIT_HOST_ADDR_SPACE_SIZE | \ 100 VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL | \ 101 VM_EXIT_SAVE_IA32_PAT | \ 102 VM_EXIT_LOAD_IA32_PAT | \ 103 VM_EXIT_SAVE_IA32_EFER | \ 104 VM_EXIT_LOAD_IA32_EFER | \ 105 VM_EXIT_CLEAR_BNDCFGS | \ 106 VM_EXIT_PT_CONCEAL_PIP | \ 107 VM_EXIT_CLEAR_IA32_RTIT_CTL) 108 109 #define EVMCS1_SUPPORTED_VMENTRY_CTRL \ 110 (VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | \ 111 VM_ENTRY_LOAD_DEBUG_CONTROLS | \ 112 VM_ENTRY_IA32E_MODE | \ 113 VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL | \ 114 VM_ENTRY_LOAD_IA32_PAT | \ 115 VM_ENTRY_LOAD_IA32_EFER | \ 116 VM_ENTRY_LOAD_BNDCFGS | \ 117 VM_ENTRY_PT_CONCEAL_PIP | \ 118 VM_ENTRY_LOAD_IA32_RTIT_CTL) 119 120 #define EVMCS1_SUPPORTED_VMFUNC (0) 121 122 struct evmcs_field { 123 u16 offset; 124 u16 clean_field; 125 }; 126 127 extern const struct evmcs_field vmcs_field_to_evmcs_1[]; 128 extern const unsigned int nr_evmcs_1_fields; 129 130 static __always_inline int evmcs_field_offset(unsigned long field, 131 u16 *clean_field) 132 { 133 const struct evmcs_field *evmcs_field; 134 unsigned int index = ENC_TO_VMCS12_IDX(field); 135 136 if (unlikely(index >= nr_evmcs_1_fields)) 137 return -ENOENT; 138 139 evmcs_field = &vmcs_field_to_evmcs_1[index]; 140 141 /* 142 * Use offset=0 to detect holes in eVMCS. This offset belongs to 143 * 'revision_id' but this field has no encoding and is supposed to 144 * be accessed directly. 145 */ 146 if (unlikely(!evmcs_field->offset)) 147 return -ENOENT; 148 149 if (clean_field) 150 *clean_field = evmcs_field->clean_field; 151 152 return evmcs_field->offset; 153 } 154 155 static inline u64 evmcs_read_any(struct hv_enlightened_vmcs *evmcs, 156 unsigned long field, u16 offset) 157 { 158 /* 159 * vmcs12_read_any() doesn't care whether the supplied structure 160 * is 'struct vmcs12' or 'struct hv_enlightened_vmcs' as it takes 161 * the exact offset of the required field, use it for convenience 162 * here. 163 */ 164 return vmcs12_read_any((void *)evmcs, field, offset); 165 } 166 167 #endif /* __KVM_X86_VMX_HYPERV_H */ 168