On Tue, Apr 19, 2005 at 01:38:10PM +0100, Christian Limpach wrote:
> > Will HYPERVISOR_block() return when there is an event pending, even if
> > evtchn_upcall_mask is nonzero ?
> 
> yes, HYPERVISOR_block() will reenable events in a race-free manner, i.e.
> you want to call HYPERVISOR_block() with events disabled and it will return
> immediately if there are already pending events.

ha, but events will be reenabled (evtchn_upcall_mask will be reset to 0),
right ? If so we can't really run in complete polling mode ...

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
     NetBSD: 26 ans d'experience feront toujours la difference
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