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Mykola Kvach 62fd5ab3e1 drivers: xen: gnttab: do Xen node mapping inside driver
Move memory mapping of Xen node to Grant Table driver system init
function. After moving mapping we don't need anymore records of
xen-xen node into 'mmu_regions' array, so they were deleted from
all SoCs: Rcar Gen3/Gen4 and XenVM.

We need at least 16M of virtual address space to map memory of Xen
node, so the virtual memory sized has been increased to 32 MB, it
should be enough for basic use-cases and mapping of 16M mem region
of Xen node.

Unfortunately, after moving we also need to increase number of XLAT
tables. The previous code was more efficient if we talking about
usage of XLAT tables, because it mapped grant tables using a higher-
order table that allows mapping blocks of 2MB. And after the changes
is maps every 4KB page, so we need more XLAT tables.

Increase number of grant frames, it is needed to sync stage 1 and stage 2
memory mappings, previously we map only one page on stage 2 and further
usage of unmap regions can cause MMU translation errors.

Perform mapping stage 1 before mapping for stage 2 (add to physmap),
because right after stage 1 we can try to access memory and if it is
unmap in stage 2, error will be received during translation.

Note: Xen Grant Table driver doesn't use Zephyr Device Model.

Authored-by: Mykola Kvach <mykola_kvach@epam.com>
Co-authored-by: Oleksii Moisieiev <oleksii_moisieiev@epam.com>
Signed-off-by: Mykola Kvach <mykola_kvach@epam.com>
2023-09-15 11:15:00 +01:00
.github ci: bump zephyrproject-rtos/action-first-interaction v1.1.1-zephyr-4 2023-09-13 17:32:38 -04:00
arch modules: acpica: Fix header inclusion issue 2023-09-15 05:41:04 -04:00
boards drivers: xen: gnttab: do Xen node mapping inside driver 2023-09-15 11:15:00 +01:00
cmake cmake: expose TOOLCHAIN_HAS_PICOLIBC to kconfig 2023-09-13 17:36:46 -04:00
doc doc: release: 3.5: Add note about shared interrupt support 2023-09-14 08:35:12 +02:00
drivers drivers: xen: gnttab: do Xen node mapping inside driver 2023-09-15 11:15:00 +01:00
dts dts: arm64: intel: Add support for sip_svc for agilex5 2023-09-15 09:26:49 +02:00
include/zephyr toolchain: do not allow including toolchain-specific headers 2023-09-15 09:27:30 +02:00
kernel kernel: move timeout_q.h to kernel/include 2023-09-12 12:55:36 -04:00
lib libc: picolibc: disable prompt for PICOLIBC_USE_MODULE... 2023-09-13 17:36:46 -04:00
misc misc: generated: update configs.c template with <zephyr/...> prefix 2022-05-09 12:45:29 -04:00
modules modules/acpica: CMakeLists.txt: move conditional to beginning of file 2023-09-15 09:26:14 +02:00
samples samples: subsys: shell_module: Add support for intel_socfpga_agilex series 2023-09-15 09:26:49 +02:00
scripts west: fix wrong zsh completion 2023-09-15 09:27:20 +02:00
share sysbuild: Make the image processing order well-defined 2023-09-05 15:27:04 +02:00
snippets snippets: support for EXTRA_DTC_OVERLAY_FILE and EXTRA_CONF_FILE 2023-05-25 13:31:53 +00:00
soc drivers: xen: gnttab: do Xen node mapping inside driver 2023-09-15 11:15:00 +01:00
submanifests
subsys Bluetooth: Controller: Fix missing lazy calculation for Central ISO 2023-09-15 09:27:37 +02:00
tests toolchain: only include <zephyr/toolchain.h> 2023-09-15 09:27:30 +02:00
.checkpatch.conf checkpatch: Remove ext/ from excludes 2022-11-30 12:06:55 -05:00
.clang-format clang-format: flag *_SECTION_FOREACH as for loop 2023-05-26 11:04:54 -05:00
.codecov.yml yamllint: fix all yamllint comments errors 2023-01-04 01:16:45 +09:00
.editorconfig editorconfig: Improve verbosity 2022-04-28 08:55:39 -04:00
.gitattributes gitattributes: consider SVG files generated 2021-10-14 12:42:44 -04:00
.gitignore scripts: compliance: add a check for missing west area maintainer enties 2023-09-14 08:13:57 -07:00
.gitlint gitlint: Stop ignoring merge, revert, fixup and squash commits 2022-01-10 08:13:36 -05:00
.mailmap mailmap: sort alphabetically 2023-05-15 13:23:32 -04:00
.yamllint scripts: compliance: add support for YAMLLint 2023-01-04 17:29:23 +01:00
CMakeLists.txt cmake: add Zephyr image output files as byproducts 2023-08-22 12:31:43 +02:00
CODE_OF_CONDUCT.md
CODEOWNERS CODEOWNERS: add codeowner of MAX11102-17 2023-09-14 08:32:46 -05:00
CONTRIBUTING.rst
Kconfig
Kconfig.zephyr Kconfig.zephyr: check priorities by default 2023-08-24 15:35:37 +02:00
LICENSE
MAINTAINERS.yml include: arch: arm: Remove aarch32 directory 2023-09-13 10:08:05 +01:00
README.rst readme: Add support for light/dark modes in the logo 2022-11-18 08:58:59 +01:00
VERSION release: bump main to v3.4.99 2023-06-16 13:29:34 -04:00
version.h.in kernel: banner: Allow for customising version 2023-08-21 10:09:46 +02:00
west.yml toolchain: only include <zephyr/toolchain.h> 2023-09-15 09:27:30 +02:00
zephyr-env.cmd
zephyr-env.sh everywhere: fix typos 2022-03-18 13:24:08 -04:00

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <picture>
         <source media="(prefers-color-scheme: dark)" srcset="doc/_static/images/logo-readme-dark.svg">
         <source media="(prefers-color-scheme: light)" srcset="doc/_static/images/logo-readme-light.svg">
         <img src="doc/_static/images/logo-readme-light.svg">
       </picture>
     </p>
   </a>

   <a href="https://bestpractices.coreinfrastructure.org/projects/74"><img
   src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
   <a
   href="https://github.com/zephyrproject-rtos/zephyr/actions/workflows/twister.yaml?query=branch%3Amain">
   <img
   src="https://github.com/zephyrproject-rtos/zephyr/actions/workflows/twister.yaml/badge.svg?event=push"></a>


The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM (Cortex-A,
Cortex-R, Cortex-M), Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V,
SPARC, MIPS, and a large number of `supported boards`_.

.. below included in doc/introduction/introduction.rst


Getting Started
***************

Welcome to Zephyr! See the `Introduction to Zephyr`_ for a high-level overview,
and the documentation's `Getting Started Guide`_ to start developing.

.. start_include_here

Community Support
*****************

Community support is provided via mailing lists and Discord; see the Resources
below for details.

.. _project-resources:

Resources
*********

Here's a quick summary of resources to help you find your way around:

* **Help**: `Asking for Help Tips`_
* **Documentation**: http://docs.zephyrproject.org (`Getting Started Guide`_)
* **Source Code**: https://github.com/zephyrproject-rtos/zephyr is the main
  repository; https://elixir.bootlin.com/zephyr/latest/source contains a
  searchable index
* **Releases**: https://github.com/zephyrproject-rtos/zephyr/releases
* **Samples and example code**: see `Sample and Demo Code Examples`_
* **Mailing Lists**: users@lists.zephyrproject.org and
  devel@lists.zephyrproject.org are the main user and developer mailing lists,
  respectively. You can join the developer's list and search its archives at
  `Zephyr Development mailing list`_. The other `Zephyr mailing list
  subgroups`_ have their own archives and sign-up pages.
* **Nightly CI Build Status**: https://lists.zephyrproject.org/g/builds
  The builds@lists.zephyrproject.org mailing list archives the CI nightly build results.
* **Chat**: Real-time chat happens in Zephyr's Discord Server. Use
  this `Discord Invite`_ to register.
* **Contributing**: see the `Contribution Guide`_
* **Wiki**: `Zephyr GitHub wiki`_
* **Issues**: https://github.com/zephyrproject-rtos/zephyr/issues
* **Security Issues**: Email vulnerabilities@zephyrproject.org to report
  security issues; also see our `Security`_ documentation. Security issues are
  tracked separately at https://zephyrprojectsec.atlassian.net.
* **Zephyr Project Website**: https://zephyrproject.org

.. _Discord Invite: https://chat.zephyrproject.org
.. _supported boards: http://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: http://docs.zephyrproject.org
.. _Introduction to Zephyr: http://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: http://docs.zephyrproject.org/latest/develop/getting_started/index.html
.. _Contribution Guide: http://docs.zephyrproject.org/latest/contribute/index.html
.. _Zephyr GitHub wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _Zephyr Development mailing list: https://lists.zephyrproject.org/g/devel
.. _Zephyr mailing list subgroups: https://lists.zephyrproject.org/g/main/subgroups
.. _Sample and Demo Code Examples: http://docs.zephyrproject.org/latest/samples/index.html
.. _Security: http://docs.zephyrproject.org/latest/security/index.html
.. _Asking for Help Tips: https://docs.zephyrproject.org/latest/develop/getting_started/index.html#asking-for-help