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ptdump is a debugfs interface used to dump the kernel page tables. It provides a comprehensive overview about the kernel's virtual memory layout, page table entries and associated page attributes. A document detailing how to enable ptdump in the kernel and analyse its output has been added. Changes in V2: - Corrected command to cat /sys/kernel/debug/kernel_page_tables Changes in V1: https://lore.kernel.org/all/20230613064845.1882177-1-chaitanyas.prakash@arm.com/ Cc: Will Deacon <will@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> CC: linux-arm-kernel@lists.infradead.org Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com> Link: https://lore.kernel.org/r/20230619083802.76092-1-chaitanyas.prakash@arm.com [catalin.marinas@arm.com: various minor fixups; sorted index.rst in alphabetical order] Signed-off-by: Catalin Marinas <catalin.marinas@arm.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.