Yuki Kinebuchi

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Constructing an embedded device with a real-time and a general-purpose operating system has attracted attention as a promising approach to let the device balance real-time responsiveness and rich func-tionalities. This paper introduces our methodology for constructing such multi-OS platform with minimal engineering cost by assuming asymmet-ric OS(More)
Recently, the engineering cost of embedded systems is rapidly increasing due to growing sophistication of services. To deal with the problem, hybrid operating system environments have been proposed. This enables to run a RTOS and a general purpose OS concurrently and to reuse software resources on both of them. This approach is efficient in reducing(More)
System integrity monitors, such as rootkit detectors, rely critically on the ability to fetch and inspect pages containing code and data of a target system under study. To avoid being infected by malicious or compromised targets, state-of-the-art system integrity monitors rely on virtualization technology to set up a tamper-proof execution environment.(More)
In this paper, we propose a virtualization architecture for the multi-core embedded system to provide more system reliability and security while maintaining the same performance without introducing additional special hardware supports or having to implement complex protection mechanism in the virtualization layer. Virtualization has been widely used in(More)
The emergence of functional embedded systems such as cell-phones and digital appliances brought up a new issue, building a system supporting both real-time and rich services. One of the solutions is leveraging a hypervisor to integrate an RTOS and a commodity OS into a single device. However, this approach induces the limitation of application deployment;(More)
Future ambient intelligence environments will embed powerful multi-core processors to compose various functionalities into a smaller number of hardware components. This makes the maintainability of intelligent environments better because it is not easy to manage massively distributed processors. A composition kernel makes it possible to compose multiple(More)
Like existing commodity computer systems, embedded systems are no more small, static, stable nor safe. They have huge amount of source codes, interact with the inter-net, download and install applications from external, which incur the increase of bugs and security holes. To solve these problems, we propose to leverage virtualization techniques on embedded(More)
A virtualization layer makes it possible to compose multiple functionalities on a multi-core processor with minimum modifications of OS kernels and applications. A multi-core processor is a good candidate to compose various software independently developed for dedicated processors into one multi-core processor to reduce both the hardware and development(More)
The recent increase in complexity and functionality in embedded systems makes them more vulnerable to rootkit-type attacks, raising the need for integrity management systems. However, as of today there is no such system that can guarantee the system’s safety while matching the low-resource, real-time and multi-core requirements of embedded systems.(More)