公开(公告)号：US20230342503A1

公开(公告)日：2023-10-26

申请号：US18344404

申请日：2023-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junhua Zhao ,  Tianhong Ding ,  Yanlei Jia ,  Qiang Xu

IPC: G06F21/74 ,  G06F21/52 ,  G06F21/57

CPC classification number: G06F21/74 ,  G06F21/52 ,  G06F21/572

Abstract: A system includes a first subsystem and a second subsystem that are used in a same chip. A security level of a first physical resource included in the first subsystem is higher than a security level of a second physical resource included in the second subsystem. The first subsystem includes an interrupt controller, and the interrupt controller is configured to manage an interrupt of a peripheral of the second subsystem. Embodiments of this application are for isolation between subsystems of different security levels in a chip.

公开(公告)号：US20250156565A1

公开(公告)日：2025-05-15

申请号：US19028057

申请日：2025-01-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guangyu Zhou ,  Junhua Zhao

IPC: G06F21/62 ,  G06F21/44

Abstract: An access control method includes an apparatus that may perform authentication on an application based on a file request of the application to detect whether the application has permission to perform a target file operation on a target resource file. When the application has the corresponding permission, the apparatus may provide a corresponding system resource for the application, to meet a running requirement of the application. Further, system resources are integrated for centralized management on permission for the system resources such that configuration difficulty and costs can be effectively reduced, and overall processing efficiency of the apparatus can be improved.