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9a5bff7f5e
Use KVM_PAGES_PER_HPAGE() instead of open coding equivalent logic that is
anything but obvious.
No functional change intended, and verified by compiling with the below
assertions:
BUILD_BUG_ON((1UL << KVM_HPAGE_GFN_SHIFT(PG_LEVEL_4K)) !=
KVM_PAGES_PER_HPAGE(PG_LEVEL_4K));
BUILD_BUG_ON((1UL << KVM_HPAGE_GFN_SHIFT(PG_LEVEL_2M)) !=
KVM_PAGES_PER_HPAGE(PG_LEVEL_2M));
BUILD_BUG_ON((1UL << KVM_HPAGE_GFN_SHIFT(PG_LEVEL_1G)) !=
KVM_PAGES_PER_HPAGE(PG_LEVEL_1G));
Link: https://lore.kernel.org/r/20240809194335.1726916-19-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.