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Re: [Xen-devel] [PATCH 0 of 7 V4] amd iommu: support ATS/GPGPU passthru on IOMMUv2 systems

On 01/20/2012 05:26 PM, Jan Beulich wrote:
On 20.01.12 at 17:21, Wei Wang<wei.wang2@xxxxxxx>  wrote:
could you provide more info about your push test on amd machines? This
patch queue should not affect any amd machines that do not have iommuv2
hardware in it.

My suspicion is that the previous set still has something in it that breaks
if a system does not have a v2 IOMMU (or maybe no IOMMU at all). Did
you cross check the previous series this way (apparently you didn't
check on Intel systems, otherwise 24520:9a967990b4d2 wouldn't have
been necessary, which allowed for the fuzzy push Ian referred to)?


Hi I had tested this on old iommu systems before submission. But I can re-test it again. Non-iommu system will also be tested. It might take some in setting up an Intel machine on my side. Could Ian confirm that it works on Intel or not?


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