191 lines
4.7 KiB
ReStructuredText
191 lines
4.7 KiB
ReStructuredText
.. _acrnctl:
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acrnctl and acrnd
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#################
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Description
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***********
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The ``acrnctl`` tool helps users create, delete, launch, and stop a User
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OS (UOS). The tool runs under the Service OS, and UOSs should be based
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on ``acrn-dm``. The daemon for acrn-manager is `acrnd`_.
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Usage
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=====
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You can see the available ``acrnctl`` commands by running:
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.. code-block:: none
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# acrnctl help
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support:
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list
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start
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stop [--force/-f]
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del
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add
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pause
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continue
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suspend
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resume
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reset
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blkrescan
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Use acrnctl [cmd] help for details
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.. note::
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You must run ``acrnctl`` with root privileges.
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Here are some usage examples:
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Add a VM
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========
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The ``add`` command lets you add a VM by specifying a
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script that will launch a UOS, for example ``launch_uos.sh``:
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.. code-block:: none
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# acrnctl add launch_uos.sh -U 1
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vm1-14:59:30 added
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If a ``-C`` option is also specified, the VM is launched in a runC
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container::
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# acrnctl add launch_uos.sh -C
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.. note:: You can download an `example launch_uos.sh script
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<https://raw.githubusercontent.com/projectacrn/acrnhypervisor/master/devicemodel/samples/nuc/launch_uos.sh>`_
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that supports the ``-C`` (``run_container`` function) option. You may refer to :ref:`acrn-dm_qos`
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for more details about this option.
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Note that the launch script must only launch one UOS instance.
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The VM name is important. ``acrnctl`` searches VMs by their
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names so duplicate VM names are not allowed. If the
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launch script changes the VM name at launch time, ``acrnctl``
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will not recognize it.
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Delete VMs
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==========
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Use the ``delete`` command with a VM name to delete that VM:
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.. code-block:: none
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# acrnctl del vm1-14:59:30
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List VMs
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========
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Use the ``list`` command to display VMs and their state:
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.. code-block:: none
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# acrnctl list
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vm1-14:59:30 untracked
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vm-yocto stopped
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vm-android stopped
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Start VM
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========
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If a VM is in a ``stopped`` state, you can start it with the ``start``
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command:
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.. code-block:: none
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# acrnctl start vm-yocto
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Stop VM
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=======
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Use the ``stop`` command to stop one or more running VM:
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.. code-block:: none
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# acrnctl stop vm-yocto vm1-14:59:30 vm-android
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Use the optional ``-f`` or ``--force`` argument to force the stop operation.
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This will trigger an immediate shutdown of the User VM by the ACRN Device Model
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and can be useful when the User VM is in a bad state and not shutting down
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gracefully by itself.
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.. code-block:: none
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# acrnctl stop -f vm-yocto
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RESCAN BLOCK DEVICE
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===================
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Use the ``blkrescan`` command to trigger a rescan of
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virtio-blk device by guest VM, in order to revalidate and
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update the backend file.
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.. code-block:: none
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# acrnctl blkrescan vmname slot,newfilepath
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vmname: Name of VM with dummy backend file attached to virtio-blk device.
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slot: Slot number of the virtio-blk device.
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newfilepath: File path for the backend of virtio-blk device.
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acrnctl blkrescan vm1 6,actual_file.img
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.. note:: blkrescan is only supported when VM is launched with
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empty backend file (using **nodisk**) for virtio-blk device.
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Replacing a valid backend file is not supported and will
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result in error.
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.. _acrnd:
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acrnd
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*****
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The ``acrnd`` daemon process provides a way for launching or resuming a UOS
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should the UOS shut down, either planned or unexpected. A UOS can ask ``acrnd``
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to set up a timer to make sure the UOS is running, even if the SOS is
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suspended or stopped.
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Usage
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=====
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You can see the available ``acrnd`` commands by running:
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.. code-block:: none
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$ acrnd -h
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acrnd - Daemon for ACRN VM Management
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[Usage] acrnd [-t] [-d delay] [-h]
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-t: print messages to stdout
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-d: delay the autostarting of VMs, <0-60> in second (not available in the
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``RELEASE=1`` build)
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-h: print this message
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Normally, ``acrnd`` runs silently (messages are directed to
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``/dev/null``). Use the ``-t`` option to direct messages to ``stdout``,
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useful for debugging.
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The ``acrnd`` daemon stores pending UOS work to ``/usr/share/acrn/conf/timer_list``
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and sets an RTC timer to wake up the SOS or bring the SOS back up again.
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When ``acrnd`` daemon is restarted, it restores the previously saved timer
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list and launches the UOSs at the right time.
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A ``systemd`` service file (``acrnd.service``) is installed by default that will
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start the ``acrnd`` daemon when the Service OS comes up.
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You can restart/stop acrnd service using ``systemctl``
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.. note::
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You must run ``acrnd`` with root privileges.
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Build and Install
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*****************
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Source code for both ``acrnctl`` and ``acrnd`` is in the ``tools/acrn-manager`` folder.
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Change to that folder and run:
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.. code-block:: none
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# make
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# make install
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