Concurrent direct network access for virtual machine monitors
Document Type
Conference Presentation
Department
Electrical and Computer Engineering
Conference Title
Proceedings - International Symposium on High-Performance Computer Architecture
Date of Presentation
8-10-2007
Abstract
This paper presents hardware and software mechanisms to enable concurrent direct network access (CDNA) by operating systems running within a virtual machine monitor. In a conventional virtual machine monitor, each operating system running within a virtual machine must access the network through a software-virtualized network interface. These virtual network interfaces are multiplexed in software onto a physical network interface, incurring significant performance overheads. The CDNA architecture improves networking efficiency and performance by dividing the tasks of traffic multiplexing, interrupt delivery, and memory protection between hardware and software in a novel way. The virtual machine monitor delivers interrupts and provides protection between virtual machines, while the network interface performs multiplexing of the network data. In effect, the CDNA architecture provides the abstraction that each virtual machine is connected directly to its own network interface. Through the use of CDNA, many of the bottlenecks imposed by software multiplexing can be eliminated without sacrificing protection, producing substantial efficiency improvements. © 2007 IEEE.
ISSN
1530-0897
First Page
306
Last Page
317
DOI
10.1109/HPCA.2007.346208
Recommended Citation
Willmann, P.,
Shafer, J.,
Carr, D.,
Menon, A.,
Rixner, S.,
Cox, A. L.,
&
Zwaenepoel, W.
(2007).
Concurrent direct network access for virtual machine monitors.
Paper presented at Proceedings - International Symposium on High-Performance Computer Architecture.
https://scholarlycommons.pacific.edu/soecs-facpres/407
