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The mtty driver exposes a PCI serial device to userspace and therefore makes an easy target for a sample device supporting migration. The device does not make use of DMA, therefore we can easily claim support for the migration P2P states, as well as dirty logging. This implementation also makes use of PRE_COPY support in order to provide migration stream compatibility testing, which should generally be considered good practice. Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/r/20231016224736.2575718-3-alex.williamson@redhat.com Signed-off-by: Alex Williamson <alex.williamson@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.