Hi，all UefiDevicePathLibCreateDeviceNode may return NULL when NodeLength is smaller than a device path header or there is not enough memory to allocate. But after calling UefiDevicePathLibCreateDevice

UEFI specification states that there is a way to work with HII data from the OS (section "OS Runtime Utilization"), i.e. it is possible to create a form browser application and read/modify platform HI

Hello! I've noticed that the EFI_HII_CONFIG_ROUTING_PROTOCOL.ExportConfig() function doesn't dump configurations for efivarstorage's. But at the same time it is possible to get these configurations wi

Chipset may support the special reset with power on memory. This reset can keep power of DRAM, then DRAM content can be kept. On capsule update, chipset will trig this reset. After reset, next boot is

Hello, We have platforms running UEFI firmware that support capsules with FMP header version 2 from edk2-stable202002. We would like to upgrade our UEFI firmware to edk2-stable202105 where the capsule

Hello! I'm trying to understand the usage of `[DefaultStores]` in the DSC file. For example: ``` [DefaultStores] 0|STANDARD 1|MANUFACTURING ``` Is this `DefaultStores` mechanics connected with the `de

Hi all, My platform information is as follows: Minnowboard Max. I use i2cdetect under Linux to detect multiple I2c buses, such as: I2c-0 Synopsys DesignWare I2C adapter I2c-10 SMBus I801 adapter at 20

Hi all, I use the \MdeModulePkg\Bus\I2c\I2cDxe driver and load the driver with the following command: load I2cDxe.efi As a result, both I2cHostDriverSupported and I2cBusDriverSupported get the returne

Yes. Architectural protocol is mandatory in UEFI implementation. Edk2 is UEFI implementation. Thanks Liming > -----邮件原件----- > 发件人: discuss@edk2.groups.io <discuss@edk2.groups.io> 代表 Fabrice > DECROP

Hi, To my understanding, Real Time Clock Dxe driver is part of what is called “Architetural Protocol”. My question is : Are Architectural protocol mandatory in order to complete the boot of EDK2 ? Doe

Hello! I was reading about UEFI capsule update, and as I understood it correctly OS saves new BIOS image into DRAM and passes a pointer to the new image via NVRAM variable. Then the OS causes system r

Hi. I have an Intel DQ57TM. It's running the original Tunnel Mountain UEFI development firmware (SDV.TM.B12) Basically what is discussed in the following: https://uefi.org/sites/default/files/resource

Hello all, My team is attempting to develop a way for our device firmware to update in the UEFI space. It seems to us that capsules are the standard procedure. I'm finding a lot of information about c

Hello, I am looking to submit a patch to EDK2 and I just wanted to make sure I do things correctly. From what I can tell in the contributing wiki I can create PR on github to test things, but I also n

I'm submitting a PR for EDK2 to add 1 new file and edit 6 existing files. The 6 existing files all pass all checks and tests. The 1 new file had a error from patchchecker python script for LF on all l

Hey there folks. I'd like to make a formal bugreport on Bugzilla, but as I'm new to this project, I can't have an account yet. So, I'm writing here. What I am attempting to do: boot a system via PXE-I

There is has an example of I2cDxe driver in edk2, the path is \MdeModulePkg\Bus\I2c\I2cDxe. However, I can't find an I2C example related to the app. I use the following function, try to get the I2C ha

Hello, Don't really know whether similar issue was already reported in the past, but: I faced it while was following through the arcticle "How to debug OVMF with QEMU using WinDbg" (https://github.com

The secure boot framework finally invokes PKCS7_verify() of OpenSSL. It has been verified that PKCS7_verify() does not support verifying the contents of an RSA-PSS signature. The CMS_verify() interfac

The secure boot framework finally invokes PKCS7_verify() of OpenSSL. It has been verified that PKCS7_verify() does not support verifying the contents of an RSA-PSS signature. The CMS_verify() interfac