From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: One question to IST stack for PV guest
Date: Fri, 18 Dec 2009 13:50:53 -0800
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To: "Kleen, Andi" <andi.kleen@intel.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>, "Jiang,
	Yunhong" <yunhong.jiang@intel.com>, Keir Fraser <keir.fraser@eu.citrix.com>, Jan Beulich <JBeulich@novell.com>
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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