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447112d7ed
Snapshot VMX's LBR capabilities once during module initialization instead of calling into perf every time a vCPU reconfigures its vPMU. This will allow massaging the LBR capabilities, e.g. if the CPU doesn't support callstacks, without having to remember to update multiple locations. Opportunistically tag vmx_get_perf_capabilities() with __init, as it's only called from vmx_set_cpu_caps(). Reviewed-by: Mingwei Zhang <mizhang@google.com> Link: https://lore.kernel.org/r/20240307011344.835640-2-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.