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Re: [PATCH] Allow xen to share device with domain (RE: [PATCH] RE: [Xen-

To: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Subject: Re: [PATCH] Allow xen to share device with domain (RE: [PATCH] RE: [Xen-ia64-devel] xencons interrupt problem)
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Mon, 03 Jul 2006 13:56:34 -0600
Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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On Mon, 2006-07-03 at 16:23 +0800, Tian, Kevin wrote:
> Hi, Alex,
>       Attached is an updated patch on top of yours, to address issues 
> found by far. Please review and check whether working on your box, 
> and I only did simple validation on my box since adding logic doesn't 
> affect boxes out of such scenario.
> 
>       A major change is to convert into a mutual mapping between xen 
> vector and guest vector, and thus to address injection and EOI issues.

Hi Kevin,

   Thanks for your comments, and thanks especially for this updated
patch to address them.  I'm having a little bit of trouble with the
guest calling end().  The only way I'm able to get it working reliably
is for xen to call end() in __do_IRQ().  When the responsibility is left
to the guest, the shared interrupt seems to get stuck.  I'm still trying
to debug why this might be happening.  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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