On Tue, 2013-03-19 at 20:22 -0700, H. Peter Anvin wrote: > 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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