linux-kernel - Re: [Intel IOMMU 00/10] Intel IOMMU support, take #2

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Message-Id: <20070625234550.058635cb.akpm@linux-foundation.org>
Date:	Mon, 25 Jun 2007 23:45:50 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Keshavamurthy, Anil S" <anil.s.keshavamurthy@...el.com>
Cc:	linux-kernel@...r.kernel.org, ak@...e.de, gregkh@...e.de,
	muli@...ibm.com, suresh.b.siddha@...el.com, arjan@...ux.intel.com,
	ashok.raj@...el.com, davem@...emloft.net, clameter@....com
Subject: Re: [Intel IOMMU 00/10] Intel IOMMU support, take #2

On Tue, 19 Jun 2007 14:37:01 -0700 "Keshavamurthy, Anil S" <anil.s.keshavamurthy@...el.com> wrote:

> 	This patch supports the upcomming Intel IOMMU hardware
> a.k.a. Intel(R) Virtualization Technology for Directed I/O 
> Architecture

So...  what's all this code for?

I assume that the intent here is to speed things up under Xen, etc?  Do we
have any benchmark results to help us to decide whether a merge would be
justified?

Does it slow anything down?
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