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5–26 Alpha Architecture Handbook
5.6.4.6 Multiprocessor Send/Receive Interrupt
If one processor writes some shared data, then sends an interrupt to a second processor, and
that processor receives the interrupt, then accesses the shared data, the sequence from Section
5.6.4.3 must be used:
First Processor Second Processor
:
Pick up ownership of process con-
text data structure memory.
MB
Assign new ASN or invalidate
TBs.
Save state of current process.
Restore state of new process.
MB
Pass ownership of process context
data structure memory.
:
⇒
:
Pickup ownership of new process context
data structure memory.
:MB
Assign new ASN or invalidate TBs.
Save state of current process.
Restore state of new process.
MB
Pass ownership of old process context data
structure memory.
:
Execute code for new process that accesses
memory that is not common to all processes.