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Hari Bathini
2e6bd221d9
Kernels built with CONFIG_PPC_EARLY_DEBUG_OPAL enabled expects r8 & r9 to be filled with OPAL base & entry addresses respectively. Setting these registers allows the kernel to perform OPAL calls before the device tree is parsed. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/159602303975.575379.5032301944162937479.stgit@hbathini
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.