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Re: [Xen-devel] myrinet dma

To: Tim Freeman <tfreeman@xxxxxxxxxxx>
Subject: Re: [Xen-devel] myrinet dma
From: ron minnich <rminnich@xxxxxxxx>
Date: Wed, 25 Aug 2004 14:14:54 -0600 (MDT)
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On Wed, 25 Aug 2004, Tim Freeman wrote:

> What memory issues might arise using this in a guest domain with
> privileged drivers, in non privileged domains (with one privileged
> domain actually using the libraries), and with multiple privileged
> domains simultaneously?  Is it possible?

hairy but doable is my guess. You'll have to ask permission about where to 
set up DMA as you don't want guests splatting all over memory (I assume). 
This says to me that DOM0 or Xen have to do it for you? 

In general it'd be nice to have a way to let guests virtualize hardware 
such as myrinet. 


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