Sharif Digital Repository

When multicore processors entered in industry and parallel processing became popular, most challenges have started. Some of the challenges include binding and time sharing of an application with deadline meating constraint. Another important challenge is that, these kinds of processors become more susceptible to transient faults. Among solutions to the mentioned challenges, virtualization which was one of the well known ones becomes applicable again because of some of its advantages such as flexibility, high abstraction and low cost implementation. But this technology has some drawbacks too. It can make system complex and leads to memory and performance overhead. Constructing a reliable... 

Over the last years, research about writable virtual machine introspection has been started. This approach has the benefits of readonly virtual machine introspection. Additionally, it has more applications, such as automated defense against malware programs, than the read-only approach. In the read-only VMI, data is gathered from virtual machine hardware states and then analysis in virtual machine monitor. In writable one, hypervisor can modify virtual machine kernel state. Consistency issue is an essential challenge for out-vm writable VMI. In the best of our knowledge, only one implementation try to solve this consistency issue. However it cannot resolve this issue completely. Other VMI...