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8d862c270b
Undefine SPEC_CTRL_SSBD, which is #defined by msr-index.h to represent the enable flag in MSR_IA32_SPEC_CTRL, to avoid issues with the macro being unpacked into its raw value when passed to KVM's F() macro. This will allow using multiple layers of macros in F() and friends, e.g. to harden against incorrect usage of F(). No functional change intended (cpuid.c doesn't consume SPEC_CTRL_SSBD). Link: https://lore.kernel.org/r/20241128013424.4096668-28-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@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 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.