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Virtualizing Graphics Architecture of Android Mobile Platforms in KVM/ARM Environment

Title
Virtualizing Graphics Architecture of Android Mobile Platforms in KVM/ARM Environment
Authors
Park, SejinPark, ByungsuLee, UnsungPark, Chanik
Date Issued
Jul-2017
Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Abstract
With the availability of virtualization extension in mobile processors, e.g. ARM Cortex A-15, multiple virtual execution domains are efficiently supported in a mobile platform. Each execution domain requires high-performance graphics services for full-featured user interfaces such as smooth scrolling, background image blurring, and 3D images. However, graphics service is hard to be virtualized because multiple service components (e.g. ION and Fence) are involved. Moreover, the complexity of Graphical Processing Unit (GPU) device driver also makes harder virtualizing graphics service. In this paper, we propose a technique to virtualize the graphics architecture of Android mobile platform in KVM/ARM environment. The Android graphics architecture relies on underlying Linux kernel services such as the frame buffer memory allocator ION, the buffer synchronization service Fence, GPU device driver, and the display synchronization service VSync. These kernel services are provided as device files in Linux kernel. Our approach is to para-virtualize these device files based on a split device driver model. A major challenge is to translate guest-view of information into host-view of information, e.g. memory address translation, file descriptor management, and GPU Memory Management Unit (MMU) manipulation. The experimental results show that the proposed graphics virtualization technique achieved almost 84%-100% performance of native applications.
URI
http://oasis.postech.ac.kr/handle/2014.oak/92079
ISSN
1745-1361
Article Type
Article
Citation
Ieice Transactions on Information and Systems, vol. E100D, no. 7, page. 1403 - 1415, 2017-07
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 PARK, CHAN IK
Dept of Computer Science & Enginrg
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