Project ACRN hypervisor
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Shuo Liu 383bc5100a virtio: config changed notify interface
Some virtio PCI devices can change the device configuration state, as
reflected in the device-specific configuration region of the device. In
this case:
 * If MSI-X capability is disabled:
    1. Set the second lower bit of the ISR Status field for the device
    2. Send the appropriate PCI interrupt for the device.
 * If MSI-X capability is enabled:
    1. If config_msix_vector is not NO_VECTOR, request the appropriate
       MSI-X interrupt message for the device, config_msix_vector sets
       the MSI-X Table entry number.

A single interrupt MAY indicate both that one or more virtqueue has been
used and that the configuration space has changed.

Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Reviewed-by: Hao Li <hao.l.li@intel.com>
2018-03-23 13:47:05 -07:00
core Enable FORTIFY and FORMAT SECURITY compile flags 2018-03-20 14:39:37 +08:00
hw dm: add ACPI info for ipu pass-through 2018-03-21 15:00:16 +08:00
include virtio: config changed notify interface 2018-03-23 13:47:05 -07:00
samples update launch_uos.sh script 2018-03-19 16:39:18 +08:00
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README.rst README.rst: convert to ReST and add details 2018-03-09 16:13:57 +08:00

ACRN Device Model
#################

Introduction
============
The ACRN Device Model provides **device sharing** capabilities between the Service OS and Guest OSs. It is a component that is used in conjunction with the `ACRN Hypervisor`_ and this is installed within the Service OS. You can find out more about Project ACRN on the `Project ACRN documentation`_ website.


Building the Device Model
=========================

Build dependencies
******************

* For Clear Linux

.. code-block:: console

   sudo swupd bundle-add os-clr-on-clr \
          os-utils-gui-dev

* For CentOS

.. code-block:: console

   sudo yum install gcc \
          libuuid-devel \
          openssl-devel \
          libpciaccess-devel

* For Fedora 27

.. code-block:: console

   sudo dnf install gcc \
          libuuid-devel \
          openssl-devel \
          libpciaccess-devel

Build
*****
To build the Device Model

.. code-block:: console

   make

To clean the build artefacts

.. code-block:: console

   make clean

Runtime dependencies
********************

* On CentOS

.. code-block:: console

   sudo yum install openssl-libs \
                    zlib \
                    libpciaccess \
                    libuuid

* On Fedora 27

.. code-block:: console

   sudo dnf install openssl-libs \
                    zlib \
                    libpciaccess \
                    libuuid

.. _`ACRN Hypervisor`: https://github.com/projectacrn/acrn-hypervisor
.. _`Project ACRN documentation`: https://projectacrn.github.io/