Interrupt sharing system assigning each interrupt request signal to a select one of system interrupt signals based on characteristic data of each peripheral device
 A mechanism that automatically configures the manner in which interrupt signals are shared in order to avoid system failures and improves the system performance is herein disclosed. The mechanism executes as part of the system BIOS during system initialization or reset. The mechanism utilizes information found in the configuration register space to determine the characteristics of the device. The device characteristics are used to determine which devices share IRQ signals. In this manner, devices that cause system failures due to sharing interrupt signals are not assigned a common interrupt signal thereby minimizing system failures and improving the overall system performance. 
Hewlett-Packard Company
G
G06F
inventional
Phillip Jiangang Kai Kamran
Pham Ding Xu Mostafavi