Hi edk2, As UEFI event group mechanism, we can register callbacks under event group. For example, register two event callbacks and will be signal in ReadyToBoot. Status = gBS->CreateEventEx (

I don't really understand your question. If you are looking for functions that parse string representations of integers into integer variables, "MdePkg/Include/Library/BaseLib.h" has:

The way I generally do this (for OVMF) is as follows: - run a complete NOOPT build - run a command like: objdump -S

Hi I want to check some .efi and call format stuff. However I don't know exactly how to produce assembly output from edk2 gcc. I was trying to tweak .dsc. The problem is that the last file is compile

HI Is there some library like UefiLib, with some function working like scanf()? For example, print() shares some things with printf(), but I can't find any related to input working that way. Really

Just because I mentioned RuntimeServicesSupported, I guess it makes sense to reference this spec ticket too: https://mantis.uefi.org/mantis/view.php?id=2049 Thanks Laszlo

Locking the boot order by way of causing SetVariable to fail for the OS seems wrong to me. BDS is platform policy. A platform BDS implementation can simply re-generate all Boot#### variables, and the

Thank you very much Laszlo, and Happy New Year. There's still some problems. Apparently the optimizer is stripping out the fixed array that I'm using to save and print the text file. I know that this

(Side comment: please always check the returns status.) This call looks invalid (undefined behavior), likely due to a copy/paste error. It should be: text_file->Read (text_file, ...) ^^^^^^^^^

Hi I've wrote another little program trying to focus on this (it was added into

Hi, I am new to UEFI development and trying to set up physical machine debugging environment using UEFI Development Kit Debugger Tool (UDK) but unsuccessful so far. Can someone assist me to figure

No problem. Thanks for looking into this, Tim. :)

I have found out how to debug on the VS. https://docs.microsoft.com/zh-tw/visualstudio/debugger/how-to-debug-an-executable-not-part-of-a-visual-studio-solution?view=vs-2019 Thank you.

Sunny -- Thanks for the clarification. Tim

I build and run Emulator with below command. edksetup.bat Rebuild build -p EmulatorPkg\EmulatorPkg.dsc -t VS2017 -a IA32 cd Build\EmulatorIA32\DEBUG_VS2017\IA32 type WinHost.exe Thanks Liming

Hi Sean, Thanks for checking this further and bringing this to the Microsoft OS team. Yeah, your guess is part of the solution that I'm working on. I'm making a spec'd way to fix this and will

Hi Tim, You can check the section 2.2.2.1 Critical Data. The Boot order is identified as critical data that should be protected. Yes, we can see this case on server platforms (enterprise solution

Sunny, Thanks for your comments. Thanks, Ray

Sorry for the delay. Somehow I didn't catch the follow-up email. Thanks for checking my comments, Ray and Ashish. Yeah, agree. 2.b is better. I will review the code change. Regards, Sunny Wang

Hi Liming, Thanks for the information. But may I know how to do that in VS? Is it possible to build the EDK2 by the VS? Now I am building it by the Windows command line.