Intel® Trust Domain Extensions(TDX) refers to an Intel technology that extends Virtual Machine Extensions(VMX) and Multi-Key Total Memory Encryption(MK-TME) with a new kind of virtual machine guest called a Trust Domain(TD). A TD runs in a CPU mode that protects the confidentiality of its memory contents and its CPU state from any other software, including the hosting Virtual Machine Monitor (VMM). Please get more details from TDX White Papers and Specifications
This repository helps to:
- Build individual component's package or install pre-build binaries on IaaS host or create PaaS guest image for quick evaluation
- Generate the patchsets for deep dive in source code level
- Test, hack and debug the TDX technology
- Dump guest VM measurement and generate TD quote report for TDX E2E attestation
- Measured boot and Secure boot for TDX guest VM
Intel® TDX(Trust Domain Extensions) MVP Stack includes the components in below diagram:
Name | Stack | Description |
---|---|---|
TDX Host Kernel | IaaS Host | The modified kernel for baremetal server with TDX KVM patches |
TDX Qemu-KVM | IaaS Host | The modified Qemu VMM to support to create TDX guest VM |
TDX Libvirt | IaaS Host | The modified libvirt to create TDX guest domain via Qemu |
TDVF | IaaS Host | The modified OVMF(Open Source Virtual Firmware) to support TDX guest boot like page accept, TDX measurement |
TDX Guest Kernel | PaaS VM | The modified kernel for guest VM with TDX patches |
TDX Grub2 | VM Guest | The modified grub for guest VM to support TDX measurement |
TDX shim | VM Guest | The modified shim for guest VM to support TDX measurement |
The component can be installed via pre-build distro package or built from scratch.
TBD
To build all components, run the following commands:
cd build/centos-stream-8
./build-repo.sh
This will build all packages and create two repositories, one for guest and one for host. Move the host repo to a known location:
sudo mkdir -p /srv/
sudo mv repo/host /srv/tdx-host
To use the repo, create the following file as /etc/yum.repos.d/tdx-host-local.repo
:
[tdx-host-local]
name=tdx-host-local
baseurl=file:///srv/tdx-host
enabled=1
gpgcheck=0
module_hotfixes=true
Finally, install packages as follows:
sudo dnf install intel-mvp-tdx-host-kernel intel-mvp-tdx-tdvf intel-mvp-tdx-qemu-kvm intel-mvp-tdx-libvirt
After building TDX components packages please refer to Setup TDX Guest Image to install them into cloud image. It uses
CentOS Stream 8
as example distro.
You can start-qemu.sh to create TD guest quickly as below. Please get detail grub/direct boot template for qemu-kvm and libvirt at Launch TD Guest.
- Launch a TDX guest via direct boot
./start-qemu.sh -i td-guest-rhel-8.5.qcow2 -k vmlinuz-rhel-8.5
- Launch a TDX guest via grub boot
./start-qemu.sh -i td-guest-rhel-8.5.qcow2 -b grub
- Launch a debug version TDX guest with debug version OVMF
./start-qemu.sh -i td-guest-rhel-8.5.qcow2 -k vmlinuz-rhel-8.5 -d
- Launch a non-TDX guest
./start-qemu.sh -i td-guest-rhel-8.5.qcow2 -k vmlinuz-rhel-8.5 -t efi
After TDX guest image is created, please refer to TDX Tests to run tests. It uses
CentOS Stream 8
as example distro.