In general, computer security aims at providing confidentiality, integrity and availability to computing systems. Traditionally, researchers in the fields of computer security have used software and hardware mechanisms for implementing security in computing systems. Software only security approaches typically deal with application level and Operating System (OS) level security mechanisms. Thoug...

Full virtualization of the IA32 architecture can be achieved using hardware support. The L4 microkernel has been extended with mechanisms to leverage Intel’s VT-x technology. This work proposes a user level virtual machine monitor that complements L4’s virtualization extensions and realizes microkernel-based full virtualization of arbitrary operating systems. A prototype implementation within t...

This paper introduces various techniques and levels of virtualization and their effort in achieving process containment. Virtual machines have evolved since the 1960’s when they were initially researched, and after two decades of hibernation virtual machines are making a strong comeback. Introduced in this paper are three types of virtualization techniques: hardware-level, operating system-leve...

Question 1.�� System Virtualization A hot new topic in operating systems is system virtualization. While IBM has been offering its VM system for mainframes for many years, virtualization technologies are now migrating to PC architectures, including PowerPCand i86-based chips. A second trend is the development of multi-core machines, where a single chip essentially implements a small-scale multi...

Cloud computing has become a hot technology. The virtualization technology, one of its core support technologies, is also developing quickly. In recent years, a lot of research and practice have been done in the virtualization field. Live virtual machine migration has drawn much attention as a representative technology of the virtualization field. This paper summarizes the research progress of ...

The virtualization of IT infrastructure enables consolidation and pooling of IT resources so they are shared over diverse applications to offset the limitation of shrinking resources and growing business needs. Virtualization provides a logical abstraction of physical computing resources and creates computing environments that are not restricted by physical configuration or implementation. Virt...

With rapid rise of virtualization technology from diverse types of cloud computing service, security problems such as data safety and reliability are the issues at stake. Since damage in virtualization layer of cloud service can cause damage on all host (user) tasks, Hypervisor that provides an environment for multiple virtual operating systems can become a target of attack by hackers. This pap...

There are numerous facets to virtualization and a number of authors have presented work in this field. Hardware Level Virtualization presents an interesting method for the full utilisation of modern computer systems and for increasing the performance of such systems. In this review, literature in the field of hardware virtualization, its performance and relevant aspects of benchmarking is prese...

Virtualization technologies are experiencing a renewed interest as a way to improve system reliability, and availability, reduce costs, and provide flexibility. This paper presents the development on leverage existing cloud infrastructure and virtualization tools. We adopted some virtualization technologies which improve portability, manageability and compatibility of applications by encapsulat...