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8227f40ade
Instead of crawling through the MTRR register state, use the new cache_map for looking up the cache type(s) of a memory region. This allows now to set the uniform parameter according to the uniformity of the cache mode of the region, instead of setting it only if the complete region is mapped by a single MTRR. This now includes even the region covered by the fixed MTRR registers. Make sure uniform is always set. [ bp: Massage. ] [ jgross: Explain mtrr_type_lookup() logic. ] Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Tested-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20230502120931.20719-14-jgross@suse.com Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> |
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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 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.