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We explicitly unmount the VirtIO device (used to transfer files into the simulated system) at the end of a run (when the connection is closed) in order to make checkpointing the simulated system easier. gem5 supports checkpointing the state of the simulation when it is terminated, and future simulations are able to resume from this snapshot. However, for the checkpoint to work correctly, we need to make sure that there is no shared state between the simulated system and the host. This mandates that we disconnect the VirtIO device prior to taking a checkpoint.
devlib
======
``devlib`` exposes an interface for interacting with and collecting
measurements from a variety of devices (such as mobile phones, tablets and
development boards) running a Linux-based operating system.
Installation
------------
::
sudo -H pip install devlib
Usage
-----
Please refer to the "Overview" section of the `documentation <http://devlib.readthedocs.io/en/latest/>`_.
License
-------
This package is distributed under `Apache v2.0 License <http://www.apache.org/licenses/LICENSE-2.0>`_.
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-----------------------------------
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