Paper Info
Title
Detection of Service Level Agreement (SLA) Violation in Memory Management in Virtual Machines
Abstract
In cloud computing, quality of services is often enforced through Service Level Agreement (SLA) between end users and cloud providers. While SLAs on hardware resources such as CPU cycles or bandwidth can be monitored by low layer sensors, the enforcement of security SLAs stays a very challenging problem. Several high level architectures for security SLAs have been proposed. However, details still need to be filled before they can be deployed. In this paper, we propose to design mechanisms to detect violations of security SLAs. Specifically, we focus on unauthorized accesses to memory pages of a virtual machine and violation of the memory deduplication policies. Through measuring the accumulated memory access latency, we try to derive out whether or not the memory pages have been swapped out and the order of accesses to them. These events will then be compared to access commands issued by the local VM. In this way, unauthorized memory accesses or violation of deduplication policies can be detected. Compared to existing approaches, our mechanisms do not need explicit help from the hypervisor or third parties. Therefore, it can detect SLA violations even when they are initiated by the hypervisor. We implement our approaches under VMWare with Windows virtual machines. Our experiment results show that the VM can effectively detect the violations with small increases in overhead.
Year
DOI
Venue
2015
10.1109/ICCCN.2015.7288394
2015 24th International Conference on Computer Communication and Networks (ICCCN)
Keywords
Field
DocType
service level agreement violation,memory management,virtual machines,cloud computing,memory page unauthorized access,memory deduplication policies violation,accumulated memory access latency,memory page swapping,memory page access order,VMWare,Windows virtual machine
Memory protection,Uniform memory access,Physical address,Virtual memory,Computer science,Computer network,Data diffusion machine,Memory management,Page fault,Memory map,Operating system
Conference
ISSN
Citations 
PageRank 
1095-2055
0
0.34
References 
Authors
29
3
Name
Order
Citations
PageRank
Xiongwei Xie151.09
Weichao Wang250033.87
Tuan-fa Qin31410.24