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5429478d03
Add helpers to handle 64-bit APIC read/writes via MSRs to deduplicate the x2APIC and Hyper-V code needed to service reads/writes to ICR. Future support for IPI virtualization will add yet another path where KVM must handle 64-bit APIC MSR reads/write (to ICR). Opportunistically fix the comment in the write path; ICR2 holds the destination (if there's no shorthand), not the vector. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220204214205.3306634-9-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.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 Restructured Text 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.