Hafnium EC Service in Rust

Overview

This is a sample implementation of the EC service which runs under a dedicated secure partition in Hafnium. It is written in Rust and has dependencies on FF-A, MU UEFI, Hafnium and TFA.

Feature Status

The following components are available within this crate:

ec-service-lib - Common code used in implementation of EC SP
platform       - Contains target specific code for supported platforms

Customizations

Update memory map definitions in platforms/plat/linker folder to match the definition from your dts config file.

	load-address = <0x0 0x20400000>;
	entrypoint-offset = <0x10000>;
	image-size = <0x0 0x40000>;

MEMORY
{
	image : ORIGIN = 0x20410000, LENGTH = 2M
	rxtx_buf : ORIGIN = 0x100600A0000, LENGTH = 8K
	smem : ORIGIN = 0x10060000000, LENGTH = 8K
}

Build Instructions

From the root folder you can build all platforms using cargo build

To build for aarch64 target use cargo build --target=aarch64-unknown-none

To convert the output ELF to binary run cargo objcopy --target=aarch64-unknown-none -- -O binary output.bin

Build Validation

Before submission the following commands should all be validated.

cargo build
cargo build --target=aarch64-unknown-none
cargo +nightly fmt
cargo +nightly clippy
cargo hack --feature-powerset check
cargo deny check
cargo test