9b9a59db84
It might be necessary to prevent the virtual mapping creation for a requested memory region. For instance there is a "no-map" property indicating exactly this feature. In this case we need to not only reserve the specified region by pretending it doesn't exist in the memory space, but completely remove the range from system just by removing it from memblock. The same way it's done in default early_init_dt_reserve_memory_arch() method. Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Matt Redfearn <matt.redfearn@mips.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: Stefan Agner <stefan@agner.ch> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Juergen Gross <jgross@suse.com> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org |
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|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.