Re: [Xen-devel] Xen PV IOMMU interface draft C

[Malcolm Crossley <malcolm.crossley@xxxxxxxxxx>]

On 29/06/15 15:52, Ian Campbell wrote:
> On Mon, 2015-06-29 at 10:40 -0400, Konrad Rzeszutek Wilk wrote:
>> On Fri, Jun 26, 2015 at 12:03:44PM +0100, Ian Campbell wrote:
>>> +ARM devs.
>>>
>>> On Fri, 2015-06-26 at 11:23 +0100, Malcolm Crossley wrote:
>>>> Hi All,
>>>
>>> I had a chat with Malcolm about this with respect to ARM.
>>>
>>> The upshot is that this does not help us to remove the dom0 1:1
>>> workaround or associated swiotlb uses on systems without an SMMU, nor
>>> does it allow us to sensibly do passthrough on systems which lack an
>>> SMMU.
>>
>> What would?
> 
> This "Xen PV IOMMU interface".
> 
> 

You only get "mediated device passthrough" on system without IOMMU's.



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