Patent · US Active

Precise error injection for driver testing

US10552190B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Herwig Elfering · Eppelheim, DE
Thomas Glaesser · Eppelheim, DE
Karlo Petri · Eppelheim, DE
Bernd Simmet · Eppelheim, DE

Key dates

Filing date	Jan 16, 2017
Grant date	Feb 4, 2020
Priority date	—
Expiry date	May 3, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F2009/45579
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method is provided for verifying functional correctness of a device driver for a controller hardware component being emulated in an emulation environment including a virtual processor. The method includes providing a communication device in the emulation environment. The communication device receives at least one execution condition and an error injection command from a communication device driver associated with the communication device. The controller hardware component executes device operation commands received from the device driver. Based on the communication device determining that the at least one execution condition is fulfilled while the device operation commands are executed, the method provides for the communication device to: halt the operation of the virtual processor; inject an error into the controller hardware component by executing the error injection command; and resume the operation of the virtual processor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.