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Re: [Xen-devel] AMD IOMMU status

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] AMD IOMMU status
From: Wei Huang <wei.huang2@xxxxxxx>
Date: Fri, 8 Jan 2010 11:17:53 -0600
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Andrew Oakley <andrew@xxxxxxxxxxxxxxxxx>
Delivery-date: 2010年1月08日 09:21:22 -0800
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Xen's support for AMD IOMMU is up-to-date. You need 800 chipset and a working BIOS to use IOMMU. There will be an option in BIOS to turn it on/off. IOMMU feature doesn't require special support from CPUs.
Best,
-Wei
Keir Fraser wrote:
AMD are actively working on it. Most recent committed patch specifically for
AMD IOMMU support was mid December.
 -- Keir
On 08/01/2010 00:10, "Andrew Oakley" <andrew@xxxxxxxxxxxxxxxxx> wrote:
There seem to be a lot of commits and discussion about VT-d support,
however there seems to be very little activity regarding device
passthrough using the AMD IOMMU. Is it "done", lacking a mantainer,
or never going to work?
A quick google showed that 8 series chipsets for desktop are likely to
be released very soon (looks like it is only the 8 series that have the
relevant IOMMU). I'm not sure if any other hardware is required for
passthrough, does anyone know if there is anything special about the
CPU?
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