1 /** @file 2 GUID for EFI (NVRAM) Variables. 3 4 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> 5 SPDX-License-Identifier: BSD-2-Clause-Patent 6 7 @par Revision Reference: 8 GUID defined in UEFI 2.1 9 **/ 10 11 #ifndef __GLOBAL_VARIABLE_GUID_H__ 12 #define __GLOBAL_VARIABLE_GUID_H__ 13 14 #define EFI_GLOBAL_VARIABLE \ 15 { \ 16 0x8BE4DF61, 0x93CA, 0x11d2, {0xAA, 0x0D, 0x00, 0xE0, 0x98, 0x03, 0x2B, 0x8C } \ 17 } 18 19 extern EFI_GUID gEfiGlobalVariableGuid; 20 21 // 22 // Follow UEFI 2.4 spec: 23 // To prevent name collisions with possible future globally defined variables, 24 // other internal firmware data variables that are not defined here must be 25 // saved with a unique VendorGuid other than EFI_GLOBAL_VARIABLE or 26 // any other GUID defined by the UEFI Specification. Implementations must 27 // only permit the creation of variables with a UEFI Specification-defined 28 // VendorGuid when these variables are documented in the UEFI Specification. 29 // 30 // Note: except the globally defined variables defined below, the spec also defines 31 // L"Boot####" - A boot load option. 32 // L"Driver####" - A driver load option. 33 // L"SysPrep####" - A System Prep application load option. 34 // L"Key####" - Describes hot key relationship with a Boot#### load option. 35 // The attribute for them is NV+BS+RT, #### is a printed hex value, and no 0x or h 36 // is included in the hex value. They can not be expressed as a #define like other globally 37 // defined variables, it is because we can not list the Boot0000, Boot0001, etc one by one. 38 // 39 40 /// 41 /// The language codes that the firmware supports. This value is deprecated. 42 /// Its attribute is BS+RT. 43 /// 44 #define EFI_LANG_CODES_VARIABLE_NAME L"LangCodes" 45 /// 46 /// The language code that the system is configured for. This value is deprecated. 47 /// Its attribute is NV+BS+RT. 48 /// 49 #define EFI_LANG_VARIABLE_NAME L"Lang" 50 /// 51 /// The firmware's boot managers timeout, in seconds, before initiating the default boot selection. 52 /// Its attribute is NV+BS+RT. 53 /// 54 #define EFI_TIME_OUT_VARIABLE_NAME L"Timeout" 55 /// 56 /// The language codes that the firmware supports. 57 /// Its attribute is BS+RT. 58 /// 59 #define EFI_PLATFORM_LANG_CODES_VARIABLE_NAME L"PlatformLangCodes" 60 /// 61 /// The language code that the system is configured for. 62 /// Its attribute is NV+BS+RT. 63 /// 64 #define EFI_PLATFORM_LANG_VARIABLE_NAME L"PlatformLang" 65 /// 66 /// The device path of the default input/output/error output console. 67 /// Its attribute is NV+BS+RT. 68 /// 69 #define EFI_CON_IN_VARIABLE_NAME L"ConIn" 70 #define EFI_CON_OUT_VARIABLE_NAME L"ConOut" 71 #define EFI_ERR_OUT_VARIABLE_NAME L"ErrOut" 72 /// 73 /// The device path of all possible input/output/error output devices. 74 /// Its attribute is BS+RT. 75 /// 76 #define EFI_CON_IN_DEV_VARIABLE_NAME L"ConInDev" 77 #define EFI_CON_OUT_DEV_VARIABLE_NAME L"ConOutDev" 78 #define EFI_ERR_OUT_DEV_VARIABLE_NAME L"ErrOutDev" 79 /// 80 /// The ordered boot option load list. 81 /// Its attribute is NV+BS+RT. 82 /// 83 #define EFI_BOOT_ORDER_VARIABLE_NAME L"BootOrder" 84 /// 85 /// The boot option for the next boot only. 86 /// Its attribute is NV+BS+RT. 87 /// 88 #define EFI_BOOT_NEXT_VARIABLE_NAME L"BootNext" 89 /// 90 /// The boot option that was selected for the current boot. 91 /// Its attribute is BS+RT. 92 /// 93 #define EFI_BOOT_CURRENT_VARIABLE_NAME L"BootCurrent" 94 /// 95 /// The types of boot options supported by the boot manager. Should be treated as read-only. 96 /// Its attribute is BS+RT. 97 /// 98 #define EFI_BOOT_OPTION_SUPPORT_VARIABLE_NAME L"BootOptionSupport" 99 /// 100 /// The ordered driver load option list. 101 /// Its attribute is NV+BS+RT. 102 /// 103 #define EFI_DRIVER_ORDER_VARIABLE_NAME L"DriverOrder" 104 /// 105 /// The ordered System Prep Application load option list. 106 /// Its attribute is NV+BS+RT. 107 /// 108 #define EFI_SYS_PREP_ORDER_VARIABLE_NAME L"SysPrepOrder" 109 /// 110 /// Identifies the level of hardware error record persistence 111 /// support implemented by the platform. This variable is 112 /// only modified by firmware and is read-only to the OS. 113 /// Its attribute is NV+BS+RT. 114 /// 115 #define EFI_HW_ERR_REC_SUPPORT_VARIABLE_NAME L"HwErrRecSupport" 116 /// 117 /// Whether the system is operating in setup mode (1) or not (0). 118 /// All other values are reserved. Should be treated as read-only. 119 /// Its attribute is BS+RT. 120 /// 121 #define EFI_SETUP_MODE_NAME L"SetupMode" 122 /// 123 /// The Key Exchange Key Signature Database. 124 /// Its attribute is NV+BS+RT+AT. 125 /// 126 #define EFI_KEY_EXCHANGE_KEY_NAME L"KEK" 127 /// 128 /// The public Platform Key. 129 /// Its attribute is NV+BS+RT+AT. 130 /// 131 #define EFI_PLATFORM_KEY_NAME L"PK" 132 /// 133 /// Array of GUIDs representing the type of signatures supported 134 /// by the platform firmware. Should be treated as read-only. 135 /// Its attribute is BS+RT. 136 /// 137 #define EFI_SIGNATURE_SUPPORT_NAME L"SignatureSupport" 138 /// 139 /// Whether the platform firmware is operating in Secure boot mode (1) or not (0). 140 /// All other values are reserved. Should be treated as read-only. 141 /// Its attribute is BS+RT. 142 /// 143 #define EFI_SECURE_BOOT_MODE_NAME L"SecureBoot" 144 /// 145 /// The OEM's default Key Exchange Key Signature Database. Should be treated as read-only. 146 /// Its attribute is BS+RT. 147 /// 148 #define EFI_KEK_DEFAULT_VARIABLE_NAME L"KEKDefault" 149 /// 150 /// The OEM's default public Platform Key. Should be treated as read-only. 151 /// Its attribute is BS+RT. 152 /// 153 #define EFI_PK_DEFAULT_VARIABLE_NAME L"PKDefault" 154 /// 155 /// The OEM's default secure boot signature store. Should be treated as read-only. 156 /// Its attribute is BS+RT. 157 /// 158 #define EFI_DB_DEFAULT_VARIABLE_NAME L"dbDefault" 159 /// 160 /// The OEM's default secure boot blacklist signature store. Should be treated as read-only. 161 /// Its attribute is BS+RT. 162 /// 163 #define EFI_DBX_DEFAULT_VARIABLE_NAME L"dbxDefault" 164 /// 165 /// The OEM's default secure boot timestamp signature store. Should be treated as read-only. 166 /// Its attribute is BS+RT. 167 /// 168 #define EFI_DBT_DEFAULT_VARIABLE_NAME L"dbtDefault" 169 /// 170 /// Allows the firmware to indicate supported features and actions to the OS. 171 /// Its attribute is BS+RT. 172 /// 173 #define EFI_OS_INDICATIONS_SUPPORT_VARIABLE_NAME L"OsIndicationsSupported" 174 /// 175 /// Allows the OS to request the firmware to enable certain features and to take certain actions. 176 /// Its attribute is NV+BS+RT. 177 /// 178 #define EFI_OS_INDICATIONS_VARIABLE_NAME L"OsIndications" 179 /// 180 /// Whether the system is configured to use only vendor provided 181 /// keys or not. Should be treated as read-only. 182 /// Its attribute is BS+RT. 183 /// 184 #define EFI_VENDOR_KEYS_VARIABLE_NAME L"VendorKeys" 185 186 #endif 187