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8220e22d11
The keys used to verify the Host OS kernel are managed by firmware as secure variables. This patch loads the verification keys into the .platform keyring and revocation hashes into .blacklist keyring. This enables verification and loading of the kernels signed by the boot time keys which are trusted by firmware. Signed-off-by: Nayna Jain <nayna@linux.ibm.com> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> Signed-off-by: Eric Richter <erichte@linux.ibm.com> [mpe: Search by compatible in load_powerpc_certs(), not using format] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1573441836-3632-5-git-send-email-nayna@linux.ibm.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.