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784a46618f
write_pkru() was originally used just to write to the PKRU register. It was mercifully short and sweet and was not out of place in pgtable.h with some other pkey-related code. But, later work included a requirement to also modify the task XSAVE buffer when updating the register. This really is more related to the XSAVE architecture than to paging. Move the read/write_pkru() to asm/pkru.h. pgtable.h won't miss them. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210623121455.102647114@linutronix.de |
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| README | ||
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.