[2020-01-03] Mr. Shih-Wei Li, Columbia University, "Cloud Virtual Machine Security and Arm based Virtualization Systems"

Poster:Post date:2019-12-27
Title: Cloud Virtual Machine Security and Arm based Virtualization Systems
Date: 2020-01-03 2:20pm-3:30pm
Location: R103, CSIE
Speaker: Mr. Shih-Wei Li, Columbia University
Hosted by: Prof. Hsu-Chun Hsiao


The availability of cost-effective, commodity cloud providers has pushed increasing numbers of companies and users to move their data and computation off site into virtual machines (VMs) running on hosts in the cloud. Hypervisors are widely deployed by cloud computing providers to support VMs, but their growing complexity poses a security risk as large codebases contain many vulnerabilities. In the first part of the talk, I will introduce HypSec, a new hypervisor design for retrofitting an existing commodity hypervisor to protect the confidentiality and integrity of VMs. We have used HypSec to retrofit KVM, a widely used commodity hypervisor. The implementation has a trusted computing base of only a few thousand lines of code, many orders of magnitude less than KVM while only incurring modest performance overhead for real application workloads. In the second part of the talk, I will discuss Arm based virtualization. Arm has been widely used in embedded systems and recently applied to server platforms. I will cover the design of virtualization systems on Arm and how they leverage hardware support.
Shih-Wei Li is a PhD candidate in Computer Science at Columbia University, advised by Professor Jason Nieh. He received his BS from National Chiao Tung University, MS from National Tsing Hua University, both in Computer Science. His interests span across areas in operating systems, security, and virtualization. In particular, he focuses on topics in Arm virtualization.
Last modification time:2019-12-27 PM 2:33

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