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fb7d4377d5
The clearing of the GBPAGE CPUID bit for VMX is wrong; support for 1GB pages in EPT has no relationship to whether 1GB pages should be marked as supported in CPUID. This has no ill effect because we're only clearing the bit, but we're not marking 1GB pages as available when EPT is disabled (even though they are actually supported thanks to shadowing). Instead, forcibly enable 1GB pages in the shadow paging case. This also eliminates an instance of the undesirable "unsigned f_* = *_supported ? F(*) : 0" pattern in the common CPUID handling code, and paves the way toward eliminating ->get_lpage_level(). Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| README | ||
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.