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The LoongArch architecture is quite different from other architectures. When the allocating of KFENCE itself is done, it is mapped to the direct mapping configuration window [1] by default on LoongArch. It means that it is not possible to use the page table mapped mode which required by the KFENCE system and therefore it should be remapped to the appropriate region. This patch adds architecture specific implementation details for KFENCE. In particular, this implements the required interface in <asm/kfence.h>. Tested this patch by running the testcases and all passed. [1] https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#virtual-address-space-and-address-translation-mode Signed-off-by: Enze Li <lienze@kylinos.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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.