TrenchBoot hardware requirements

TrenchBoot by itself doesn't have any special requirements, just use the requirements of target OS or hypervisor as a base. However, the same can't be said about vendors DRTM implementation, and those differ between vendors.

Intel

For Intel, you need a TXT-capable chipset and TXT-capable CPU. In addition, a TPM is required. It shouldn't make a difference whether it is a discrete chip (dTPM) or firmware TPM (fTPM) running in a CPU's trusted execution environment, but version (1.2 or 2.0) must be supported by the processor, or more specifically, the SINIT Authenticated Code Module (ACM) for given CPU family. Refer to Late Launch Overview for more information about the role and source of ACM.

Depending on firmware, TXT may need to be manually enabled in setup.

AMD

On AMD, DRTM implementation is tightly connected to Secure Virtual Machine (SVM) extensions. This is a virtualization technology included in all recent (last decade or even longer) CPUs. Contrary to Intel, a discrete TPM (dTPM) is required on AMD, but its version doesn't matter - the counterpart to ACM (which must be signed by Intel) is implemented by TrenchBoot with support for both TPM 1.2 and 2.0.

Depending on firmware, SVM (which may be labeled also as virtualization or AMD-V) may need to be manually enabled in setup.

Caveats

While the above information summarizes requirements provided by respective vendors, it doesn't necessarily mean that the platform meeting those conditions will fully work. It is possible that the firmware doesn't initialize all of the parts required by DRTM, or ACM is buggy, or there is an issue with microcode that doesn't properly start a dynamic launch event. A list of such quirks can be found here.