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5b937a1ed6
AMD Cyan Skillfish (Family 17h, Model 47h, Stepping 0h) has an error that causes RDSEED to always return 0xffffffff, while RDRAND works correctly. Mask the RDSEED cap for this CPU so that both /proc/cpuinfo and direct CPUID read report RDSEED as unavailable. [ bp: Move to amd.c, massage. ] Signed-off-by: Mikhail Paulyshka <me@mixaill.net> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Cc: <stable@kernel.org> Link: https://lore.kernel.org/20250524145319.209075-1-me@mixaill.net |
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| README | ||
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 reStructuredText 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.