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[Xen-devel] Re: [RFC] implement "trap-process-return"-like behavior with grant ring + evtchn

On Thu, 2011-06-23 at 09:40 +0100, Wei Liu wrote:
> On Thu, Jun 23, 2011 at 3:42 PM, Ian Campbell
> <Ian.Campbell@xxxxxxxxxxxxx> wrote:
> > If you cannot sleep in the context these activities are happening in
> > then I think you can use the evtchn poll hypercall to block until the
> > evtchn is triggered
> I looked through do_event_channel_op and didn't see a polling
> operation. Which hypercall are you referring to?

Oh, I forgot -- it's a schedop, see SCHEDOP_poll in


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