Horio, S. and Takahashi, K. and Kourai, K. and Rahim, L.A. (2022) Optimized Memory Encryption for VMs Across Multiple Hosts. Lecture Notes in Networks and Systems, 312. pp. 307-315. ISSN 23673370
Full text not available from this repository.Abstract
Recently, virtual machines (VMs) with a large amount of memory are widely used. It is often not easy to migrate such a large-memory VM because VM migration requires one large destination host. To address this issue, split migration divides the memory of a VM into small pieces and transfers them to multiple destination hosts. The migrated VM exchanges its memory data between the hosts using remote paging. To prevent information leakage from the memory data in an untrusted environment, memory encryption can be used. However, encryption overhead largely affects the performance of the hosts and the VM. This paper proposes SEmigrate for optimizing the memory encryption in split migration and remote paging. SEmigrate avoids decrypting memory data at most of the destination hosts to reduce the overhead and completely prevent information leakage. Also, it selectively encrypts only the memory data containing sensitive information by analyzing the memory of the guest operating system in a VM. SEmigrate could reduce the CPU utilization during encrypted split migration by 6�20 point and improve the performance of the migrated VM with encrypted remote paging to 1.9 �. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
Item Type: | Article |
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Additional Information: | cited By 0; Conference of 13th International Conference on Intelligent Networking and Collaborative Systems, INCoS 2021 ; Conference Date: 1 September 2021 Through 3 September 2021; Conference Code:263569 |
Depositing User: | Mr Ahmad Suhairi UTP |
Date Deposited: | 19 Dec 2023 03:24 |
Last Modified: | 19 Dec 2023 03:24 |
URI: | https://khub.utp.edu.my/scholars/id/eprint/17880 |