UEFI Reset Modules

A set of simple UEFI modules that reset the system when loaded. Written in Rust with minimal dependencies and no unsafe code. Building this project produces a set of binaries:

• shutdown.efi - Powers off the system.
• cold.efi - Performs a cold reset.
• warm.efi - Performs a warm reset.

Purpose

This application is designed to be loaded by UEFI firmware and will immediately trigger a system reset. This provides a quick and convenient way to power off or reboot a system from:

• A bootable USB drive
• A UEFI shell
• UEFI HTTP boot
• Any EFI-capable firmware interface

Building

Prerequisites

• Rust 1.81+ toolchain

The project includes a rust-toolchain.toml file that automatically installs the required x86_64-unknown-uefi target. However, depending on your environment you might need to manually install the target.

Steps

To build the project:

cargo build --release --target=x86_64-unknown-uefi

The above command will produce three files of note:

• target/x86_64-unknown-uefi/release/cold.efi
• target/x86_64-unknown-uefi/release/warm.efi
• target/x86_64-unknown-uefi/release/shutdown.efi

The --target option is likely optional for any tools that respect .cargo/config.toml.

License

This project is licensed under the MIT License.