Attempt to create a minimal EDK2 for OnePlus 5.
The phone boots EDK2 & enters crashdump 900E mode after sitting for ~10 seconds on a screen with:
Error: Failed to enable MMU
- Continuous Display
- ...
- ...
Tested on Ubuntu 20.04 & Arch Linux.
First, clone EDK2:
cd ..
git clone https://github.com/tianocore/edk2.git --recursive
git clone https://github.com/tianocore/edk2-platforms.git
You should have all three directories (edk2, edk2-platforms & edk2-oneplus5) side by side.
Next, install the dependencies:
Ubuntu 20.04:
sudo apt install build-essential uuid-dev acpica-tools git nasm python3-pip gcc-aarch64-linux-gnu abootimg p7zip-full bsdiff
sudo pip3 install uefi_firmware
Arch Linux:
sudo pacman -S --needed base-devel acpica git nasm python aarch64-linux-gnu-gcc p7zip bsdiff
yay -S --needed abootimg-git uefi-firmware-parser-git
Then, extract the XBL binary from your device (the powerful dd will serve you), name it xbl.elf and place it in the current directory.
Now execute ./extract-xbl.sh to get the proprietary blobs extracted.
If you just cloned this, also run ./firstrun.sh.
Finally, ./build.sh.
Then fastboot boot uefi.img.
This is based on fxsheep's edk2-sagit, which is based on zhuowei's edk2-pixel3.
SimpleFbDxe screen driver is from imbushuo's Lumia950XLPkg.
Special thanks to @lemon1ice, @gus33000 and @imbushuo for guidance.