Intel Trust Domain Extensions (TDX)
Intel Trust Domain Extensions (TDX) is Intel's confidential computing technology used to provide Trusted Execution Environments. TDX is used to deploy virtual workloads in trust domains (TDs) to provide hardware-based isolation by managing and encrypting memory to maintain integrity and confidentiality of CPU states within TDs.
On Oracle Linux 9 and Oracle Linux 10, UEK 8U2 includes guest and hypervisor support for TDX.
See https://www.intel.com/content/www/us/en/developer/tools/trust-domain-extensions/overview.html for more information.
Note:
Confidential computing using TDX is a technical preview feature when used outside of OCI.