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Re: [Xen-devel] fooey. no interrupts.

To: ron minnich <rminnich@xxxxxxxx>
Subject: Re: [Xen-devel] fooey. no interrupts.
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Mon, 09 Aug 2004 14:52:13 +0100
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> On Mon, 9 Aug 2004, Keir Fraser wrote:
> 
> > Unmasking evtchn_upcall_mask and evtchn_mask[] need special attention
> > because a pending interrupt will not automatically get raised as it
> > would on real hardware ---- think of it like an edge-triggered
> > interrupt where you lost the edge because the line was masked. So what
> > we do in Linux is:
> 
> in any event, if clock interrupts are enabled, shouldn't I get an 
> interrupt 500 ms later? Or am I misreading the code.

Yes, you'll get the interrupt sometime later, the next time Xen is
returning execution to you.

 -- Keir


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