CAN Controller Sharing Mechanism for Mixed Critical Systems

• Item type: Symposium(1)
• 公開日: 2018-03-02
• タイトル: CAN Controller Sharing Mechanism for Mixed Critical Systems
• タイトル / 言語: en
• タイトル: CAN Controller Sharing Mechanism for Mixed Critical Systems
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: embedded systems,mixed critical systems,automotive control systems,CAN,functional safety
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_5794
• 資源タイプ: conference paper
• 著者所属: Graduate School of Informatics,Nagoya University
• 著者所属: Graduate School of Informatics,Nagoya University
• 著者所属: Graduate School of Informatics,Nagoya University
• 著者所属(英): en
• 著者所属(英): Graduate School of Informatics,Nagoya University
• 著者所属(英): en
• 著者所属(英): Graduate School of Informatics,Nagoya University
• 著者所属(英): en
• 著者所属(英): Graduate School of Informatics,Nagoya University
• 著者名: Masataka, Ogawa; Yusuke, Kato; Shinya, Honda
• 著者名(英): Masataka, Ogawa; Yusuke, Kato; Shinya, Honda
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: Recently, high reliability is required for the development of embedded systems. Dealing with reliability requirements causes an increase in the complexly, development costs and verification costs of embedded systems. In or- der to reduce processings that must be ensured high reliability, an embedded software is divided into trusted/nontrusted partitions according to reliability required for each processing. A non-trusted partition accesses to a device may in- terfere with a trusted partition access because of sharing the device between trusted and non-trusted partitions. In the conventional device sharing method, only a trusted partition can access devices. Furthermore, if the non-trusted par- tition needs to access devices, it must request a trusted partition to deal with processings for device access. However, this method has a disadvantage that requests for device access may generate a high overhead. In this paper, we propose a device sharing mechanism Protection Wrapper that it allows to access devices without interference by the non-trusted partition and to share them with a low overhead. Applying our proposing mechanism to a CAN controller confirmed that the mechanism enabled to reduce a overhead for device sharing in comparison with the conventional method.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: Recently, high reliability is required for the development of embedded systems. Dealing with reliability requirements causes an increase in the complexly, development costs and verification costs of embedded systems. In or- der to reduce processings that must be ensured high reliability, an embedded software is divided into trusted/nontrusted partitions according to reliability required for each processing. A non-trusted partition accesses to a device may in- terfere with a trusted partition access because of sharing the device between trusted and non-trusted partitions. In the conventional device sharing method, only a trusted partition can access devices. Furthermore, if the non-trusted par- tition needs to access devices, it must request a trusted partition to deal with processings for device access. However, this method has a disadvantage that requests for device access may generate a high overhead. In this paper, we propose a device sharing mechanism Protection Wrapper that it allows to access devices without interference by the non-trusted partition and to share them with a low overhead. Applying our proposing mechanism to a CAN controller confirmed that the mechanism enabled to reduce a overhead for device sharing in comparison with the conventional method.
• 書誌情報: 組込みシステムワークショップ2017論文集; 巻 2017, p. 14-17, 発行日 2018-03-02
• 出版者 / 言語: ja
• 出版者: 情報処理学会