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The AMD IOMMU XT mode enables interrupt remapping with 32-bit destination APIC ID, which is required for x2APIC. The feature is available when the XTSup bit is set in the IOMMU Extended Feature register and/or the IVHD Type 10h IOMMU Feature Reporting field. For more information, please see section "IOMMU x2APIC Support" of the AMD I/O Virtualization Technology (IOMMU) Specification. Cc: Joerg Roedel <jroedel@suse.de> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.