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The PSP can return a "firmware error" code of -1 in circumstances where the PSP has not actually been called. To make this protocol unambiguous, name the value SEV_RET_NO_FW_CALL. [ bp: Massage a bit. ] Signed-off-by: Peter Gonda <pgonda@google.com> Signed-off-by: Dionna Glaze <dionnaglaze@google.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/20221207010210.2563293-2-dionnaglaze@google.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.