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Add code to support registering address space region for the device. The virtio driver can run as either: 1. Guest virtio driver 2. Userspace virtio driver on the host 3. Kernel virtio driver on the host In any case a memory key object is required to provide access to memory for the device. This code will be shared by network or block driver implementations. Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Link: https://lore.kernel.org/r/20200804162048.22587-12-eli@mellanox.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.