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Re: [Xen-devel] [VTD][PATCH] Change xc_assign_device()



On 10/12/07 09:52, "Zhai, Edwin" <edwin.zhai@xxxxxxxxx> wrote:

> On Mon, Dec 10, 2007 at 09:00:49AM +0000, Keir Fraser wrote:
>> Then the whole lot should be done in qemu-dm and it sounds like the error
>> handling needs to be improved.
> 
> Can we figure out a better way for communication between qemu-dm and Xend?
> After creation, qemu-dm is detached from Xend without any tools to notify
> Xend.
> 
> Maybe, Xend can poll the xenstore for qemu-dm device assignment success?

Writing an error node in xenstore would be good. Apart from that, qemu-dm
shutting down the domain should provide notification to Xen that something's
gone wrong. The main problem is that in a command-line environment there's
not really a way to notify the user or administrator. Then again, that's
what GUIs are for (or some other higher-level wrapper over xm and xend --
there are plenty).

 -- Keir



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