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c4827eabe1
Document that SHADOW_ACC_TRACK_SAVED_BITS_SHIFT is directly dependent on bits 53:52 being used to track the A/D type. Remove PT64_SECOND_AVAIL_BITS_SHIFT as it is at best misleading, and at worst wrong. For PAE paging, which arguably is a variant of PT64, the bits are reserved. For MMIO SPTEs the bits are not available as they're used for the MMIO generation. For access tracked SPTEs, they are also not available as bits 56:54 are used to store the original RX bits. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210225204749.1512652-15-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.