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rust-td

A demo for pure rust based td-shim.

It is derived from https://github.com/jyao1/edk2-staging/tree/TdShim/TdShimPkg.

tdx-tdcall

tdx-tdcall impl two ways:

you can edit Cargo.toml -> features -> default to enable or disable. See

  1. tdx call
default = []
  1. tdx emulate
default = ["use_tdx_emulation"]

How to build

Tools

  1. Install RUST

please use nightly-2021-08-20.

1.1. Intall xbuild

cargo install cargo-xbuild

Please reinstall cargo-xbuild, after you update the rust toolchain.

  1. Install NASM

Please make sure nasm can be found in PATH.

  1. Install LLVM

Please make sure clang can be found in PATH.

Set env:

set CC=clang
set AR=llvm-ar

Build TdShim

cargo xbuild -p rust-tdshim --target x86_64-unknown-uefi --release

Build PE format payload

pushd rust-td-payload
cargo xbuild --target x86_64-unknown-uefi --release
popd
cargo run -p rust-td-tool -- target/x86_64-unknown-uefi/release/ResetVector.bin target/x86_64-unknown-uefi/release/rust-tdshim.efi target/x86_64-unknown-uefi/release/rust-td-payload.efi target/x86_64-unknown-uefi/release/final.bin

Build Elf format payload

pushd rust-td-payload
cargo xbuild --target target.json --release
popd
cargo run -p rust-td-tool -- target/x86_64-unknown-uefi/release/ResetVector.bin target/x86_64-unknown-uefi/release/rust-tdshim.efi target/target//release/rust-td-payload target/x86_64-unknown-uefi/release/final.bin

Run

REF: https://github.com/tianocore/edk2-staging/tree/TDVF

./launch-rust-td.sh

Code Contributions

  1. install pre-commit
  2. run pre-commit install
  3. when you run git commit, pre-commit will do check-code things.

Known limitation

This package is only the sample code to show the concept. It does not have a full validation such as robustness functional test and fuzzing test. It does not meet the production quality yet. Any codes including the API definition, the libary and the drivers are subject to change.