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Drop the unnecessary and dangerous value-terminated behavior of direct_access_msrs, and simply iterate over the actual size of the array. The use in svm_set_x2apic_msr_interception() is especially sketchy, as it relies on unused capacity being zero-initialized, and '0' being outside the range of x2APIC MSRs. To ensure the array and shadow_msr_intercept stay synchronized, simply assert that their sizes are identical (note the six 64-bit-only MSRs). Note, direct_access_msrs will soon be removed entirely; keeping the assert synchronized with the array isn't expected to be along-term maintenance burden. Reviewed-by: Chao Gao <chao.gao@intel.com> Link: https://lore.kernel.org/r/20250610225737.156318-6-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.
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