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Date: Thu, 03 Apr 2014 14:17:29 +0200
From: Alexander Graf <agraf@suse.com>
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Subject: Re: [Qemu-devel] [PATCH v5 08/11] spapr-iommu: add SPAPR VFIO IOMMU
	device
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To: Alexey Kardashevskiy <aik@ozlabs.ru>, Alex Williamson <alex.williamson@redhat.com>
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, Alexander Graf <agraf@suse.de>


On 12.03.14 06:52, Alexey Kardashevskiy wrote:
> This adds SPAPR VFIO IOMMU device in order to support DMA operations
> for VFIO devices.

Sorry if this has been mentioned before, but why exactly do you need a 
separate IOMMU for VFIO? Couldn't the existing IOMMU backend drive things?


Alex