公开(公告)号：US20160267026A1

公开(公告)日：2016-09-15

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: G06F12/14 ,  G06F9/455 ,  G06F21/57

CPC classification number: G06F12/1458 ,  G06F9/4411 ,  G06F9/4555 ,  G06F21/00 ,  G06F21/572 ,  G06F21/62 ,  G06F21/78 ,  G06F2009/45583 ,  G06F2212/1052 ,  G06F2221/2141

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.

Abstract translation: 用于访问物理资源的方法和装置用于通过多内核操作系统中的第一Light OS限制对其他光系统内核Light OS的物理资源的访问，并确保在Light OS之间访问物理资源的安全性。 由安全固件执行的方法包括：接收与由第一Light OS要访问的物理资源相对应的物理地址; 确定对应于物理资源的物理地址是否超出界限; 并且如果与物理资源对应的物理地址在范围内，则向第一Light OS发送访问连续性信号; 或者如果与物理资源对应的物理地址超出范围，则向第一Light OS发送访问错误信号。