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Calculate huge_page_disallowed in __direct_map() and FNAME(fetch) in preparation for reworking the calculation so that it preserves the requested map level and eventually to avoid flagging a shadow page as being disallowed for being used as a large/huge page when it couldn't have been huge in the first place, e.g. because the backing page in the host is not large. Pass the error code into the helpers and use it to recalcuate exec and write_fault instead adding yet more booleans to the parameters. Opportunistically use huge_page_disallowed instead of lpage_disallowed to match the nomenclature used within the mapping helpers (though even they have existing inconsistencies). No functional change intended. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Message-Id: <20200923183735.584-4-sean.j.christopherson@intel.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.