[Xen-devel] Re: One question to IST stack for PV guest

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 12/18/2009 01:43 PM, Kleen, Andi wrote:
>    
> > What are the requirements here?  Are these events delivered to dom0 to
> > indicate that something needs attention on the machine, or are they
> > delivered synchronously to whatever domain is currently running to say
> > that something bad needs immediate attention?
> >      
> Both can happen (and also some more like "something happened somewhere, Just 
> FYI").
> They are all distingushed by different status bits.
>    
If they're not synchronous, then why not use a normal virq event channel?

    J

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