INTERRUPT DETECTION DEVICE AND INFORMATION PROCESSING SYSTEM

INTERRUPT DETECTION DEVICE AND INFORMATION PROCESSING SYSTEM

PROBLEM TO BE SOLVED: To perform flexible interrupt handling by using characteristics of Message Signaled Interrupt (MSI). SOLUTION: When a PCI device #A (310) sends an MSI (801), the contents of the MSI are written to a memory 220 (802). A bridge device 100 monitors address information of messages...

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Bibliographische Detailangaben
1. Verfasser: KANETANI HIDEKAZU
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Zusammenfassung:PROBLEM TO BE SOLVED: To perform flexible interrupt handling by using characteristics of Message Signaled Interrupt (MSI). SOLUTION: When a PCI device #A (310) sends an MSI (801), the contents of the MSI are written to a memory 220 (802). A bridge device 100 monitors address information of messages from the PCI device #A (310) to the memory 220 to detect MSIs pertinent to a predetermined address area (803). Upon MSI detection, the bridge device 100 issues a new MSI (804). The new MSI is received by the PCI device #B (320) in accordance with address information of the MSI (805). The device is then started without interrupt handling by a processor (806). COPYRIGHT: (C)2010,JPO&INPIT