Re: [patch 0/8] [Intel IOMMU] Support for Intel Virtualization Technology for Directed I/O

[Ashok Raj]

On Tue, Apr 10, 2007 at 09:49:55AM +0200, Andi Kleen wrote:
> On Monday 09 April 2007 23:55:52 Ashok Raj wrote:
> 
> > Please help review and provide feedback.
> 
> High level question: how did you solve the "user X server needs IOMMU bypass"
> problem?

There is no special consideration for user space. Since all useful memeory is 
mapped 1-1, guess user space would work as is. Unless iam missing something 
here.. so yes.. there is no protection with 1-1, but guess its like 
compatibility mode until the code gets converted over.

Keith: cced says some of the user space side also is getting converted over with
some driver support possibly. So this is an interim problem until X catches up
with it.
> 
> -Andi
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