Skip to content

Commit

Permalink
Add new guide to help those that are looking for to emulate instead o…
Browse files Browse the repository at this point in the history
…f use physical boards
  • Loading branch information
camilamacedo86 committed Sep 23, 2023
1 parent 056775d commit f5dc007
Show file tree
Hide file tree
Showing 7 changed files with 118 additions and 0 deletions.
Binary file added source/_static/qemu/example_factory_arm64.png
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Binary file added source/_static/qemu/example_login.png
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
110 changes: 110 additions & 0 deletions source/getting-started/emulation-with-qemu/index.rst
Original file line number Diff line number Diff line change
@@ -0,0 +1,110 @@
.. _gs-emulation-with-qemu:

Device Emulation Using QEMU
=============================

.. note::

This tutorial is designed to assist you in getting started with using QEMU to emulate devices on your desktop. Please note that we are selecting a specific FoundriesFactory® to establish an environment for experimenting with the Foundries® solution. This approach will enable you to engage with subsequent tutorials and enhance your skills.

Prerequisites and Pre-Work
---------------------------

- Ensure that you have installed `QEMU <https://www.qemu.org/download/>`_.
- Create a :ref:`ref-factory` for the platform ``QEMU Arm 64 bit`` as described in the guide :ref:`gs-select-platform`:

.. figure:: /_static/qemu/example_factory_arm64.png
:width: 900
:align: center
:alt: QEMU Arm 64 bit example factory

Emulating Device
--------------------------

1. Go to the `Targets` tab of your Factory and download the ``lmp-base-console-image-qemuarm64-secureboot.wic.gz`` image and the ``flash.bin``:

.. figure:: /_static/qemu/example_required_artefacts.png
:width: 900
:align: center
:alt: Artefacts which are required to run the image with QEMU

2. Make a directory for the artifacts and cd into it:

.. code-block:: shell
mkdir -p lmp-qemu/arm64
cd lmp-qemu/arm64
3. Copy the Artefacts to the ``lmp-qemu/arm64`` directory :

.. code-block:: shell
cp <path-where-dir>/lmp-base-console-image-qemuarm64-secureboot.wic.gz .
cp <path-where-dir>/flash.bin .
4. Decompress the image:

.. code-block:: shell
gunzip lmp-base-console-image-qemuarm64-secureboot.wic.gz
5. Convert the Disk to QCOW2 Format:

Use ``qemu-img`` to convert your raw disk image to the QCOW2 format. This step can sometimes make the image more amenable to virtualization.

.. code-block:: shell
qemu-img convert -f raw -O qcow2 lmp-base-console-image-qemuarm64-secureboot.wic lmp-base-console-image-qemuarm64-secureboot.qcow2
6. Resize the Image:

Resize the new QCOW2 image to a size that’s a multiple of the sector size. Let’s resize it to 4GB for simplicity.

.. code-block:: shell
qemu-img resize lmp-base-console-image-qemuarm64-secureboot.qcow2 4G
7. Run QEMU with the New Image:

Once you’ve converted and resized the image, you can then use it with your QEMU command.

.. code-block:: shell
qemu-system-aarch64 \
-m 2048 \
-cpu cortex-a57 \
-smp 2 \
-machine acpi=off \
-bios flash.bin \
-device virtio-net-device,netdev=net0,mac=52:54:00:12:35:02 \
-device virtio-serial-device \
-drive id=disk0,file=lmp-base-console-image-qemuarm64-secureboot.qcow2,if=none,format=qcow2 \
-device virtio-blk-device,drive=disk0 \
-netdev user,id=net0,hostfwd=tcp::2222-:22 \
-object rng-random,filename=/dev/urandom,id=rng0 \
-device virtio-rng-pci,rng=rng0 \
-chardev null,id=virtcon \
-machine virt,secure=on \
-nographic
8. Log into the booted system:

By default, the ``username`` and ``password`` to log in your device after boot are ``fio/fio``. We recommend changing them once you are in development.

.. figure:: /_static/qemu/example_login.png
:width: 900
:align: center
:alt: Login

.. note::

If you are not prompted for login, press ``Enter`` to check if it gets displayed.

.. note::

If you encounter a QEMU terminal where common commands like ``ls`` are unresponsive and a login prompt is absent, it likely indicates that your image did not boot successfully. Note that for this specific platform, we are using the ``-bios=flash.bin`` flag to boot the system, but the flags and configurations may vary depending on the selected platform.

Check warning on line 105 in source/getting-started/emulation-with-qemu/index.rst

View workflow job for this annotation

GitHub Actions / runner / vale

[vale] reported by reviewdog 🐶 [Fio-docs.sentence-length] Aim for sentences no longer than 25 words Raw Output: {"message": "[Fio-docs.sentence-length] Aim for sentences no longer than 25 words", "location": {"path": "source/getting-started/emulation-with-qemu/index.rst", "range": {"start": {"line": 105, "column": 4}}}, "severity": "INFO"}

Next Step
--------------------------

At this point, you have successfully set up the device. You are now able to :ref:`gs-register` and proceed with the following tutorials.
4 changes: 4 additions & 0 deletions source/getting-started/flash-device/index.rst
Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,10 @@ Prerequisites and Pre-Work
- Ethernet cable (if choosing Wired)
- Console access to your hardware via UART serial (if choosing WiFi)

.. note::

If you are just getting started and prefer to emulate the device rather than using a physical board, make sure to refer to the guide :ref:`gs-emulation-with-qemu`. Following this guide will lead you through "Flashing the Image" just like this guide, enabling you to proceed with the subsequent steps to :ref:`gs-register`.

.. _gs-download:

Downloading the LmP System Image
Expand Down
1 change: 1 addition & 0 deletions source/index.rst
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ OE/Yocto Project, the Linux microPlatform™ and Docker®.
getting-started/register-device/index
getting-started/install-fioctl/index
getting-started/building-deploying-app/index
getting-started/emulation-with-qemu/index

.. toctree::
:maxdepth: 1
Expand Down
3 changes: 3 additions & 0 deletions source/reference-manual/qemu/qemu.rst
Original file line number Diff line number Diff line change
Expand Up @@ -11,3 +11,6 @@ Qemu
arm64
riscv64

.. note::

If you are just getting started and prefer to emulate the device rather than using a physical board, make sure to refer to the guide :ref:`gs-emulation-with-qemu`. Following this guide will lead you through the same result of :ref:`gs-flash-device`, enabling you to proceed with the subsequent steps to :ref:`gs-register`.

0 comments on commit f5dc007

Please sign in to comment.