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e5359dcc61
The iommufd self test uses an xarray to store the pfns and their orders to emulate a page table. Slightly modify the amdv1 page table to create a real page table that has similar properties: - 2k base granule to simulate something like a 4k page table on a 64K PAGE_SIZE ARM system - Contiguous page support for every PFN order - Dirty tracking AMDv1 is the closest format, as it is the only one that already supports every page size. Tweak it to have only 5 levels and an 11 bit base granule and compile it separately as a format variant. Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Samiullah Khawaja <skhawaja@google.com> Tested-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com> Tested-by: Pasha Tatashin <pasha.tatashin@soleen.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> |
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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 reStructuredText 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.