EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS, DataSize, &CSDNEnable );ASSERT(Status); DEBUG ((EFI_D_ERROR," [CSDN]: Setvariable CSDNEnable 0x%x.\n", CSDNEnable));CSDNEnable = 0; DataSize = sizeo
现行的UEFI Spec 2.7Chap 8.2详细描述了Variable Services。 UEFI中很多module中都应用了Variable Service,作为一种Runtime Service,Variable可以向OS传递信息。 那么在与OS联调的时候,如何在OS中读取Variable呢?本文将描述如何在Windows下读取和写入UEFI中的Variable(参考MFST的online docAccess UEFI firmware variables from...
EFI_VARIABLE_RUNTIME_ACCESS, DataSize, &Data ); Print (L" [testParam] : Setvariable Data 0x%x. GUID %g ,status:%d\n",Data,&Guid,Status); Data = 0; Status = gRT->GetVariable (Name, &Guid, NULL, &DataSize, &Data); Print (L" [testParam] : GetVariable Data 0x%x. status:%d\n"...
EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 其他安全要求 UEFI 签名数据库汇报。 UEFI 2.3.1 第 27 节已采用更新经过身份验证的变量的新机制。 Windows 需要此机制。 受信任的执行环境。 Microsoft 开发了一个 EFI 协议,用于与受信任的执行环境(Tr企业版)交互,其功能类似于受信任的计算组(TCG)受...
extern EFI_GUID mMyWizardDriverFormSetGuid; extern CHAR16 mIfrVariableName[]; 然后对三个函数进行改造,之前这三个函数都没有实现具体功能: MyWizardDriverHiiConfigAccessExtractConfig()、MyWizardDriverHiiConfigAccessRouteConfig()和MyWizardDriverHiiConfigAccessCallback()。
This is a set of Python modules and a helper application "uefivars" to introspect and modify UEFI variable stores. Why do I need this? UEFI variable stores are typically opaque to users. You access them using UEFI runtime services as function calls. However, the data is then stored in a...
从Windows 10 版本 1803 开始,通用 Windows 应用可以使用GetFirmwareEnvironmentVariable和SetFirmwareEnvironmentVariable(及其“ex”变体,) 执行以下操作来访问 UEFI 固件变量: 在清单中声明Microsoft.firmwareRead_cw5n1h2txyewy自定义功能以读取固件变量,以及/或Microsoft.firmwareWrite_cw5n1h2txyewy写入固件变量...
To access the UEFI menu, users must have a connection to the BlueField console either through a UART serial port or the virtual RShim console device. The console should be configured to 115200 8N1. The UEFI's UI window size is 80 columns and 25 rows. Configure your terminal size accordingly...
loadimg = (EFI_LOADED_IMAGE_PROTOCOL *)1; // 检查是否启用了 UEFI 安全启动 if ( !((__int64 (__fastcall *)(const wchar_t *, EFI_GUID *, _QWORD, EFI_LOADED_IMAGE_PROTOCOL **, EFI_LOADED_IMAGE_PROTOCOL **))::SystemTable->RuntimeServices->GetVariable)( L"SecureBoot", &EFI_SIMPLE...
Issue-4554302: Boot issue in UEFI variable authentication. lucasjeppesen2024 年11 月 22 日 15:036 I could boot it with encryption in Jetson 35.6/jetpack 5.1.4 my steps generate ekb using gen_ekb.py from optee(git://nv-tegra.nvidia.com/tegra/optee-src/nv-optee.git) on tagjetson_...