Supporting Intel(r) SGX on Multi-Package Platforms

Intel(r) Software Guard Extensions (SGX) was originally released on client platforms and later extended to single socket server platforms. As developers have become familiar with the capabilities of the technology, the applicability of this capability in the cloud has been tested. Various Cloud Service Providers (CSPs) are demonstrating the value of using SGX based Trusted Execution Environments (TEE) to create a new paradigm of Confidential Cloud Computing. This paper describes the additional platform enhancements we believe are necessary to deliver a user programmable Trusted Execution Environment that scales to cloud usages, performs and is secure on multi-package platforms.