公开(公告)号：US20180225143A1

公开(公告)日：2018-08-09

申请号：US15947491

申请日：2018-04-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun MA ,  Tianhong DING ,  Zhaozhe TONG

IPC: G06F9/48 ,  G06F13/24 ,  G06F11/07 ,  G06F1/24

CPC classification number: G06F9/48 ,  G06F1/24 ,  G06F9/4812 ,  G06F11/0757 ,  G06F11/0793 ,  G06F13/24

Abstract: A method and an apparatus execute a non-maskable interrupt. The method includes: obtaining a secure interrupt request in a non-secure mode, and interrupting an operation of an operating system OS, where the secure interrupt request cannot be masked; entering a secure mode by using the secure interrupt request, and saving, in the secure mode, an interrupt context of an OS status when the operation of the OS is interrupted; returning to the non-secure mode to execute user-defined processing; after the user-defined processing is completed, entering the secure mode again, and resuming the OS status in the secure mode according to the interrupt context; and returning to the non-secure mode again, and continuing to execute an operation of the OS. The method and the apparatus for executing a non-maskable interrupt in embodiments of the present invention can easily implement an NMI mechanism without depending on hardware.

公开(公告)号：US20210208925A1

公开(公告)日：2021-07-08

申请号：US17207186

申请日：2021-03-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun MA ,  Tianhong DING ,  Zhaozhe TONG

IPC: G06F9/48 ,  G06F1/24 ,  G06F11/07 ,  G06F13/24

Abstract: Method and systems for executing a non-maskable interrupt are provided. In one aspect, a method for executing a non-maskable interrupt includes: obtaining an interrupt request in a non-secure mode, and interrupting an operation of an operating system (OS); saving, in a secure mode, a status of the OS when the operation of the OS is interrupted; executing, in the non-secure mode, a procedure defined for the interrupt request; resume, in the secure mode, the status of the OS; and after resuming the status of the OS, continue executing the operation of the OS in the non-secure mode.

公开(公告)号：US20200034187A1

公开(公告)日：2020-01-30

申请号：US16592144

申请日：2019-10-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun MA ,  Tianhong DING ,  Zhaozhe TONG

IPC: G06F9/48 ,  G06F1/24 ,  G06F11/07 ,  G06F13/24

Abstract: The present invention discloses a method and an apparatus for executing a non-maskable interrupt. The method includes: obtaining a secure interrupt request in a non-secure mode, and interrupting an operation of an operating system OS, where the secure interrupt request cannot be masked; entering a secure mode by using the secure interrupt request, and saving, in the secure mode, an interrupt context of an OS status when the operation of the OS is interrupted; returning to the non-secure mode to execute user-defined processing; after the user-defined processing is completed, entering the secure mode again, and resuming the OS status in the secure mode according to the interrupt context; and returning to the non-secure mode again, and continuing to execute an operation of the OS. The method and the apparatus for executing a non-maskable interrupt in embodiments of the present invention can easily implement an NMI mechanism without depending on hardware.