On Wed, Mar 23, 2022 at 04:37:50PM +0100, Niklas Schnelle wrote:
> > +/*
> > + * This holds a pinned page list for multiple areas of IO address space.
> > The
> > + * pages always originate from a linear chunk of userspace VA. Multiple
> > + * io_pagetable's, through their iopt_area's, can share
On Fri, 2022-03-18 at 14:27 -0300, Jason Gunthorpe wrote:
> The top of the data structure provides an IO Address Space (IOAS) that is
> similar to a VFIO container. The IOAS allows map/unmap of memory into
> ranges of IOVA called iopt_areas. Domains and in-kernel users (like VFIO
> mdevs) can be
The top of the data structure provides an IO Address Space (IOAS) that is
similar to a VFIO container. The IOAS allows map/unmap of memory into
ranges of IOVA called iopt_areas. Domains and in-kernel users (like VFIO
mdevs) can be attached to the IOAS to access the PFNs that those IOVA
areas
