From: H. Peter Anvin
Date: Tue Mar 19 2013 - 23:22:50 EST

On 03/19/2013 08:18 PM, Alex Williamson wrote:
>> The "pinning" process needs to involve a call to the kernel to process
>> the page for DMA (pinning the page and opening it in the iommu) and
>> return a transaction address, of course.
>> I think we have the interface for that in vfio, but I haven't followed
>> that work.
> Yes, vfio does this and is meant to provide a secure-boot-friendly PCI
> passthrough interface. Thanks,

Right, and presumably vfio does *not* require CAP_SYS_RAWIO, right?


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