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2a47c26e55
Pull x86 microcode loading updates from Borislav Petkov: - Add microcode staging support on Intel: it moves the sole microcode blobs loading to a non-critical path so that microcode loading latencies are kept at minimum. The actual "directing" the hardware to load microcode is the only step which is done on the critical path. This scheme is also opportunistic as in: on a failure, the machinery falls back to normal loading - Add the capability to the AMD side of the loader to select one of two per-family/model/stepping patches: one is pre-Entrysign and the other is post-Entrysign; with the goal to take care of machines which haven't updated their BIOS yet - something they should absolutely do as this is the only proper Entrysign fix - Other small cleanups and fixlets * tag 'x86_microcode_for_v6.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode: Mark early_parse_cmdline() as __init x86/microcode/AMD: Select which microcode patch to load x86/microcode/intel: Enable staging when available x86/microcode/intel: Support mailbox transfer x86/microcode/intel: Implement staging handler x86/microcode/intel: Define staging state struct x86/microcode/intel: Establish staging control logic x86/microcode: Introduce staging step to reduce late-loading time x86/cpu/topology: Make primary thread mask available with SMP=n
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.