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[Xen-devel] xen_blk driver

I have some trouble understanding the interface between the blkfront and 
blkback drivers. When a dom1 is created, after xlblk_init() is called, the 
wait_for_blkif() routine waits for a connection of some kind until it times out 
with a "xen_blk: Timeout connecting to device!". Is this a connection from 
Xend, Xen or dom0 it's waiting for? How is this connection timed to occur 
exactly when wait_for_blkif() is looping?


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