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[Xen-devel] wait_on_xen_event_channel

Please ignore the earlier mail on this subject from me. The mail was sent out 
before it was completed!

Why does this macro take port as an argument? It does not look like the port 
argument is used in the macro.  I want to implement a blocking synchronization  
primitive in the hypervisor where the invoking vcpu will relinquish the CPU; 
and the execution would resume out of the blocking primitive when the vcpu is 
"woken up".  The wait_on_xen_event_channel appeared to be what I wanted on 
"switch out" side; however when the vcpu is awakened the execution is not 
restored where I thought it would be. 


K. Y 

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