Advancing Cloud Computing Capabilities on gem5 by Implementing the RISC-V Hypervisor Extension

Autor: Fragkoulis, George-Marios, Karystinos, Nikos, Papadimitriou, George, Gizopoulos, Dimitris
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: This paper presents the implementation and evaluation of the H (hypervisor) extension for the RISC-V instruction set architecture (ISA) on top of the gem5 microarchitectural simulator. The RISC-V ISA, known for its simplicity and modularity, has seen widespread adoption in various computing domains. The H extension aims to enhance RISC-V's capabilities for cloud computing and virtualization. In this paper, we present the architectural integration of the H extension into gem5, an open-source, modular platform for computer system architecture research. We detail the modifications required in gem5's CPU models and virtualization support to accommodate the H extension. We also present evaluation results regarding the performance impact and functional correctness of the extension's implementation on gem5. This study not only provides a pathway for further research and development of RISC-V extensions but also contributes valuable insights into the optimization of the gem5 simulator for advanced architectural features.
Comment: 8 pages, 6 figures, CARRV '24, November 3rd, 2024, Co-located with IEEE/ACM MICRO 2024
Databáze: arXiv