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28d3417a94
This patch extends the sysfs attribute mkvps for CCA cards to show the states and master key verification patterns for the old, current and new ASYM master key registers. With this patch now all relevant master key verification patterns related to a CCA HSM are available with the mkvps sysfs attribute. This is a requirement for some exploiters like the kubernetes cex plugin or initrd code needing to verify the master key verification patterns on HSMs before use. A sample output: cat /sys/devices/ap/card04/04.0005/mkvps AES NEW: empty 0x0000000000000000 AES CUR: valid 0xe9a49a58cd039bed AES OLD: valid 0x7d10d17bc8a409c4 APKA NEW: empty 0x0000000000000000 APKA CUR: valid 0x5f2f27aaa2d59b4a APKA OLD: valid 0x82a5e2cd5030d5ec ASYM NEW: empty 0x00000000000000000000000000000000 ASYM CUR: valid 0x650c25a89c27e716d0e692b6c83f10e5 ASYM OLD: valid 0xf8ae2acf8bfc57f0a0957c732c16078b Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Jörg Schmidbauer <jschmidb@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@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.