5 results about "Non-maskable interrupt" patented technology

The invention discloses a virtual CPU thread positioning method and device, equipment and a storage medium, and the virtual CPU thread positioning method comprises the steps: in a physical LAPIC transparent transmission mode, receiving a virtual CPU thread positioning request initiated through a debugging interface of a target virtual machine; executing the target operation on each virtual CPU of the target virtual machine; the target operation comprises the steps of determining a physical CPU of a host machine where the target virtual CPU is located; sending a non-maskable interrupt NMI to the determined physical CPU to force the target virtual CPU to exit from the virtual machine mode to the host machine mode; and in the NMI processing flow of the host machine, outputting a kernel stack, on the host machine side, of the thread of the target virtual CPU to a kernel log. By applying the technical scheme provided by the invention, the effective positioning of the virtual CPU thread in the physical LAPIC transparent transmission mode is realized.

An embodiment of the present invention provides a UVM-based interrupt verification method, apparatus, device, and storage medium. The apparatus includes: a sequence generation unit configured to generate an excitation sequence applied to a design under test, wherein the excitation sequence includes a plurality of sequentially arranged sequence items, and the plurality of sequence items include regular sequence items and exclusive sequence items with exclusive constraints applied thereto; a sequence arbitration unit configured to obtain each excitation sequence and arbitrate the sequence items in the excitation sequence according to the order of the sequence items in the excitation sequence, the position of the exclusive sequence in the entire excitation sequence, and the exclusive method of the exclusive sequence, so as to reorder the sequence items; and a driving unit configured to send each sequence item to the design under test according to the order of the reordered sequence items. This embodiment can easily implement the monitoring and response to common priority interrupt types and non-maskable interrupt types.

The application provides a terminal device charging mode switching control method and device, equipment and storage medium, the method is applied to the terminal device with charging input and reverse power supply function, the terminal includes application processor, microcontroller and notification control circuit connected with both, the circuit is provided with first and second two notification channels, respectively connecting the non-maskable interrupt pin and general pin of application processor. In the above method, the microcontroller is responsible for the device type and working mode identification when the external device is connected; when the first type of emergency event is identified, the non-maskable wake-up interrupt signal is sent to the application processor through the first channel, and the application processor is forced to wake up for processing; when the second type of ordinary state event is identified, the state update signal is sent to the application processor through the second channel, and the signal only updates the state register without triggering the interrupt to wake up the application processor in sleep.

The application provides an abnormality monitoring method and device of a network node, a vehicle, equipment and a medium, and relates to the technical field of vehicles. The method uses a hardware-based non-maskable interrupt to trigger communication abnormality monitoring of a local node at a fixed time, avoiding the monitoring process from being invalid when the software system level is stuck or blocked. When communication abnormality is monitored, channel state information and program running state information are obtained from a hardware register, and the information is recorded in communication abnormality information together with vehicle network state information and a timestamp determined based on a hardware clock. After communication is restored, the recorded information is sent to a network abnormality processing device, which provides multi-dimensional abnormality information at the hardware level and the software level, and provides data support for rapid positioning of a problem node and software layer exception troubleshooting. The method realizes independent monitoring of the node, which is not limited by the vehicle network state and is not affected by the program running state at the software system level.

The present invention belongs to the field of airborne embedded software, and particularly relates to a watchdog monitoring method applicable to flight control software. It includes: Step 1: Perform a first setting on the watchdog and enable the watchdog in the first stage of the execution of the flight control software, and perform a second setting on the watchdog and enable the watchdog again in the second stage of the execution of the flight control software. Among them, the first stage is from the start of the computer to the completion of the loading of the operating system and before jumping to execute the application program branch; the second stage is the stage of executing the normal working mode, and the normal working mode is the periodic application of the system. Step 2: After the second setting is completed, perform interrupt hookup: Hook the watchdog interrupt to the Machine check interrupt source through the interrupt hookup function provided by the operating system to complete the triggering response hookup of an event-type non-maskable interrupt. Step 3: After the interrupt hookup is completed, perform a reset test according to the test judgment condition. It meets the special requirements for the safety of the flight control software.