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EP80579 Software for Security Applications on Intel
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QuickAssist Technology
August 2009 PG
Order Number: 320183 37
ASD Hardware Services—Security Software
Figure 7. ISR Sequence Diagram
Ring Controller Interrupt
occurs
Interrupt
QAT-AL
Init QATAL
Create BH
Register BH
Schedule function
Register the
interrupt Handler
for the Ring
Controller
Interrupt on
Rings 0 – 31?
Invoke ASD
Schedule function
Schedule BH
Handler
Call the QATAL Top Half Handler Function
Return IRQ Handled
BH Scheduled QATAL BH Handler Invoked
ASDOS
ASD Handler
Function