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1. (WO2017034008) SYSTEM WITH HYPERVISOR

Pub. No.:    WO/2017/034008    International Application No.:    PCT/JP2016/074886
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Fri Aug 26 01:59:59 CEST 2016
IPC: G06F 21/53
G06F 9/46
G06F 12/14
Applicants: SELTECH CORPORATION
株式会社SELTECH
Inventors: KATO, Hidekazu
加藤 秀一
EGAWA, Shoi
江川 将偉
Title: SYSTEM WITH HYPERVISOR
Abstract:
Provided is a system (1) comprising: a processing unit (11) equipped with execution modes including a non-secure mode (3) in which access to a secure region of a memory is prohibited by a support function (12), and a secure mode (2) in which access to the secure region is permitted; and a hypervisor (20) which operates in the secure mode. The hypervisor includes: a first setting unit (23) for setting a first operation condition (21), including enabling of a first OS (30) operating in the secure mode to access the secure region and the non-secure region of the memory; and a second setting unit (24) for setting a second operation condition (22a), including enabling of a second OS (41) operating in the non-secure mode to access the non-secure region, disabling of the second OS from accessing the secure region by use of the support function, and enabling of the second OS to transit to the secure mode by accessing a first device being shared with the first OS.