公开(公告)号：US20240126593A1

公开(公告)日：2024-04-18

申请号：US18397184

申请日：2023-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuming WU ,  Shen CAO ,  Yutao LIU

IPC: G06F9/48

CPC classification number: G06F9/4818

Abstract: The present disclosure relates to user-mode interrupt request processing methods and apparatuses. In one example method, a central processing unit (CPU) in a kernel mode runs a second interrupt exception handler that does not include a kernel address to determine a user-mode interrupt handler corresponding to a user-mode interrupt request, switches to a user mode by using a first privilege level without context recovery, further runs the user-mode interrupt handler in the user mode, and then switches to the kernel mode by using a second privilege level without context storage.

公开(公告)号：US20230153088A1

公开(公告)日：2023-05-18

申请号：US18154560

申请日：2023-01-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuming WU ,  Fangzhou LU ,  Xie MIAO

IPC: G06F8/41

CPC classification number: G06F8/457

Abstract: This application provides a system architecture switching method and apparatus. The method includes: when a system architecture needs to be switched, transforming a first system architecture into a second system architecture, where the first system architecture represents a system architecture before switching; and providing a service for a user by using the second system architecture. Dynamic switching of a system architecture is implemented by using a transformable system architecture, so that switching of different architectures can be implemented by using only one system architecture. Therefore, only code for implementing the system architecture is required, and code overheads can be reduced in comparison with a conventional technology.