公开(公告)号：US10180915B2

公开(公告)日：2019-01-15

申请号：US15160863

申请日：2016-05-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chen Zheng ,  Long Fu ,  Jianfeng Zhan ,  Lixin Zhang

IPC: H04L29/06 ,  G06F12/14 ,  G06F9/4401 ,  G06F21/00 ,  G06F9/455 ,  G06F21/57 ,  G06F21/62 ,  G06F21/78

Abstract: A method and an apparatus for accessing physical resources, is used to restrict access to physical resources of other light system kernel Light OSs by a first Light OS in a multi-kernel operating system and ensure security of accessing physical resources among the Light OSs. A method, executed by secure firmware, includes: receiving a physical address corresponding to a physical resource to be accessed by the first Light OS; determining whether the physical address corresponding to the physical resource is out of bounds; and if the physical address corresponding to the physical resource is within bounds, sending an access continuity signal to the first Light OS; or if the physical address corresponding to the physical resource is out of bounds, sending an access error signal to the first Light OS.