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    • 2. 发明公开
    • METHOD AND APPARATUS FOR EXECUTING NON-MASKABLE INTERRUPT
    • 用于执行不可屏蔽中断的方法和设备
    • EP3306470A1
    • 2018-04-11
    • EP16854908.7
    • 2016-10-09
    • Huawei Technologies Co., Ltd.
    • MA, JunDING, TianhongTONG, Zhaozhe
    • G06F9/48
    • G06F9/48G06F1/24G06F9/4812G06F11/0757G06F11/0793G06F13/24
    • 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 without depending on hardware.
    • 本发明公开了一种用于执行不可屏蔽中断的方法和设备。 该方法包括:以非安全模式获得安全中断请求,并中断操作系统OS的操作,其中该安全中断请求不能被屏蔽; 通过使用安全中断请求进入安全模式,并且当OS的操作被中断时,在安全模式下保存OS状态的中断上下文; 返回到非安全模式以执行用户定义的处理; 在用户定义的处理完成之后,再次进入安全模式,并根据中断上下文以安全模式恢复OS状态; 并再次返回到非安全模式,并继续执行OS的操作。 在本发明的实施例中用于执行不可屏蔽中断的方法和设备可以容易地实现NMI而不依赖于硬件。