公开(公告)号：US20210049112A1

公开(公告)日：2021-02-18

申请号：US16965935

申请日：2018-11-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fuzhou XIAO ,  Youzhan YIN ,  Dengzhou XIA

IPC: G06F12/14 ,  G06F21/71 ,  G06F21/53

Abstract: Embodiments of the present disclosure relate to kernel integrity protection methods and apparatuses. In an embodiment, a method includes: sending, by a first program executing at a first exception level, a request message to a second program executing at a second exception level, wherein the first exception level has lower execution privilege than the second exception level, the request message requests to perform memory access, and wherein the memory access is a preset register access or a preset memory space access, and; in response to receiving the request message, obtaining, by the second program, event information corresponding to the memory access; sending, by the second program, the event information to the first program; and processing, by the first program, the event information.