mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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e3f4e34c01
There are 2 eventfds for one virtqueue, one is for kick and the other is for notify. eventfd used for kick is associated with a PIO/MMIO region. eventfd used for notify is associated with a MSIx/INTx. The eventfd pair is registered to VHM thru VHM char dev. VHM irqfd currently only support MSIx. If INTx is used, vhost proxy uses mevent to poll the call fd from vhost then inject interrupt to guest. Tracked-On: #1329 Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com> Acked-by: Yu Wang <yu1.wang@intel.com>
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 \
libusb-devel
* For Fedora 27
.. code-block:: console
sudo dnf install gcc \
libuuid-devel \
openssl-devel \
libpciaccess-devel \
libusb-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 \
libusb
* On Fedora 27
.. code-block:: console
sudo dnf install openssl-libs \
zlib \
libpciaccess \
libuuid \
libusb
.. _`ACRN Hypervisor`: https://github.com/projectacrn/acrn-hypervisor
.. _`Project ACRN documentation`: https://projectacrn.github.io/