Re: [Xen-devel] IOMMU support in Xen

On Thu, Mar 11, 2010 at 01:49:16PM -0600, Kaushik Kumar Ram wrote:
> I am trying to find out what support exists today for hardware IOMMUs in Xen. 

AMD + Intel.
> In particular, I am interested in how the IOMMU support is used in guest and 
> driver domains.   

Google for "Intel VT-D specification". Take a look at
http://download.intel.com/technology/computing/vptech/Intel(r)_VT_for_Direct_IO.pdf
 

or  http://developer.amd.com/documentation/articles/pages/892006101.aspx

> 
> Any information (including pointers to the source code or documents) will be 
> much appreciated. 

xen/xen/drivers/passthrough/* has lots of source code.
> 
> Thanks.
> -Kaushik
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