policy: use Result enum instead of bool #140

	on:
	push:
	paths-ignore:
	- "**.md"
	pull_request:
	paths-ignore:
	- "**.md"
	workflow_dispatch:

	name: main

	env:
	AS: nasm
	RUST_TOOLCHAIN: nightly-2023-08-28
	TOOLCHAIN_PROFILE: minimal

	jobs:
	build_migtd:
	name: Build final migtd
	runs-on: ubuntu-20.04
	timeout-minutes: 45

	steps:
	# Install first since it's needed to build NASM
	- name: Install LLVM and Clang
	uses: KyleMayes/install-llvm-action@v1
	with:
	version: "10.0"
	directory: ${{ runner.temp }}/llvm

	- name: Install NASM
	uses: ilammy/setup-nasm@v1

	- name: Install tools for sgx lib
	run: sudo apt-get install build-essential ocaml ocamlbuild automake autoconf libtool wget python-is-python3 libssl-dev git cmake perl

	- name: Checkout sources
	uses: actions/checkout@v2
	with:
	submodules: recursive

	- name: Install toolchain
	uses: actions-rs/toolchain@v1
	with:
	profile: ${{ env.TOOLCHAIN_PROFILE }}
	toolchain: ${{ env.RUST_TOOLCHAIN }}
	override: true
	components: rust-src

	- name: Run cargo install cargo-xbuild
	uses: actions-rs/cargo@v1
	with:
	command: install
	args: cargo-xbuild

	- name: Preparation Work
	run: bash sh_script/preparation.sh

	- name: Build Migtd Final Binary
	run: bash sh_script/build_final.sh -t migtd -c -a on

	- name: Build Migtd Final Binary Using Vmcall-Vsock
	run: bash sh_script/build_final.sh -t migtd -d vmcall -c -a on

	- name: Build Migtd Final Binary Using virtio-serial
	run: bash sh_script/build_final.sh -t migtd -d serial -c -a on

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