Disaggregated computing for distributed confidential computing environment

US11893425B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Reshma Lal · Portland, US
• Pradeep M. Pappachan · Hillsboro, US
• Luis Kida · Beaverton, US
• Soham Jayesh Desai · Hillsboro, US
• Sujoy Sen · Beaverton, US
• Selvakumar Panneer · Portland, US
• Robert O. Sharp · Austin, US

Key dates

• Filing date: Nov 19, 2021
• Grant date: Feb 6, 2024
• Expiry date: Jun 29, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L9/3242
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An apparatus to facilitate disaggregated computing for a distributed confidential computing environment is disclosed. The apparatus includes a processor executing a trusted execution environment (TEE) comprising a field-programmable gate array (FPGA) driver to interface with an FPGA device that is remote to the apparatus; and a remote memory-mapped input/output (MMIO) driver to expose the FPGA device as a legacy device to the FPGA driver, wherein the processor to utilize the remote MMIO driver to: enumerate the FPGA device using FPGA enumeration data provided by a remote management controller of the FPGA device, the FPGA enumeration data comprising a configuration space and device details; load function drivers for the FPGA device in the TEE; create corresponding device files in the TEE based on the FPGA enumeration data; and handle remote MMIO reads and writes to the FPGA device via a network transport protocol.