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c953cc987a
Use clear_mce_nospec() to restore WB mode for the kernel linear mapping of a pmem page that was marked 'HWPoison'. A page with 'HWPoison' set has also been marked UC in PAT (page attribute table) via set_mce_nospec() to prevent speculative retrievals of poison. The 'HWPoison' flag is only cleared when overwriting an entire page. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.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 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.