RE: [Xen-devel] Re: VT-d could not work on ThinkPad T500 well

["Han, Weidong" <weidong.han@xxxxxxxxx>]

Christian Tramnitz wrote:
> Keir Fraser wrote:
>> Try adding iommu_inclusive_mapping to your Xen command line.
> 
> Although being a workaround, would it hurt to make that the default
> behaviour when iommu is enabled?

iommu_inclusive_mapping just works around BIOS issue, it won't impact VT-d 
functionality.

Does your system hang at the iommu fault?  Does iommu_inclusive_mapping really 
work around your issue? 

Regards,
Weidong

> There seem to be more broken implementations around than actually
> working... 
> 
> 
> Best regards,
>     Christian
> 
> 
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