EXTENDED MESSAGE SIGNALED INTERRUPTS (MSI) MESSAGE DATA

EXTENDED MESSAGE SIGNALED INTERRUPTS (MSI) MESSAGE DATA

Extended message signaled interrupts (MSI) data are disclosed. In one aspect, MSI bits are modified to include a system level identifier. In an exemplary aspect, an upper sixteen bits of the MSI message data are modified to be the system level identifier. By providing the system level identifier wit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PATEL, Piyush, YIFRACH, Shaul Yohai, GIL, Amit, PANIAN, James Lionel, ROSENBERG, Ofer
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:Extended message signaled interrupts (MSI) data are disclosed. In one aspect, MSI bits are modified to include a system level identifier. In an exemplary aspect, an upper sixteen bits of the MSI message data are modified to be the system level identifier. By providing the system level identifier within the MSI message data, an interrupt controller can verify the interrupt source.