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26d4be3ea1
BIOS now sets the x2apic enabled bit (and the ACPI table) for extended APIC modes. Use that bit to indicate if extended mode is set. [ bp: Fixup subject prefix, merge subsequent fix https://lkml.kernel.org/r/20210415220626.223955-1-mike.travis@hpe.com ] Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210408160047.1703-1-mike.travis@hpe.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.