View source for Huawei technologies co., ltd. (20240126593). USER-MODE INTERRUPT REQUEST PROCESSING METHOD AND APPARATUS simplified abstract

=USER-MODE INTERRUPT REQUEST PROCESSING METHOD AND APPARATUS=


==Organization Name==

[[:Category:huawei technologies co., ltd.|huawei technologies co., ltd.]]


[[Category:huawei technologies co., ltd.]]

==Inventor(s)==

[[:Category:Yuming Wu of Shanghai (CN)|Yuming Wu of Shanghai (CN)]][[Category:Yuming Wu of Shanghai (CN)]]

[[:Category:Shen Cao of Shanghai (CN)|Shen Cao of Shanghai (CN)]][[Category:Shen Cao of Shanghai (CN)]]

[[:Category:Yutao Liu of Dresden (DE)|Yutao Liu of Dresden (DE)]][[Category:Yutao Liu of Dresden (DE)]]

==USER-MODE INTERRUPT REQUEST PROCESSING METHOD AND APPARATUS - A simplified explanation of the abstract==


This abstract first appeared for US patent application 20240126593 titled 'USER-MODE INTERRUPT REQUEST PROCESSING METHOD AND APPARATUS

==Simplified Explanation==

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.

* Central processing unit (CPU) runs a second interrupt exception handler in kernel mode.
* The handler does not include a kernel address to determine a user-mode interrupt handler.
* Switches to a user mode using a first privilege level without context recovery.
* Runs the user-mode interrupt handler in the user mode.
* Switches back to kernel mode using a second privilege level without context storage.

== Potential Applications ==
This technology could be applied in operating systems, embedded systems, and real-time systems where efficient user-mode interrupt handling is crucial.

== Problems Solved ==
This technology solves the problem of efficiently processing user-mode interrupt requests without the need for context recovery and storage, improving overall system performance.

== Benefits ==
The benefits of this technology include faster user-mode interrupt handling, reduced overhead, and improved system responsiveness.

== Potential Commercial Applications ==
Potential commercial applications of this technology include in smartphones, IoT devices, industrial automation systems, and any system requiring efficient interrupt handling.

== Possible Prior Art ==
One possible prior art could be the traditional method of handling interrupts in kernel mode, which may involve more overhead and context switching compared to the user-mode interrupt handling described in this disclosure.

=== Unanswered Questions ===

=== How does this technology impact system security? ===
This article does not delve into the security implications of handling interrupts in user mode. It would be interesting to explore how this method affects system security and potential vulnerabilities.

=== What are the limitations of this user-mode interrupt handling method? ===
The article does not discuss any limitations or drawbacks of this technology. It would be valuable to understand any constraints or challenges associated with implementing this method in different systems.


==Original Abstract Submitted==

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.



[[Category:G06F9/48]]