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acrn-hypervisor
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acrn-hypervisor/devicemodel
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Shiqing Gao b435c74e91 dm: fix the error code issues in passthrough.c 
With current implementation:
vm_init_vdevs only handles the negative error code, while passthru_init
returns positive error code when error occurs.
This causes unexpected dm crash since the real error is not being
handled properly.

What this patch does:
Change the error code to be negative value in passthru_init because it
is common in Linux kernel to return negative value when error occurs.

v2 -> v3
* add more comments about the reason to convert the return value

v1 -> v2:
* add a wrapper API to convert the error returned from pci_system_init
  to the ERROR we defined in DM
* use the defined errno as the return value rather than -1

Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
 		2018-06-08 12:05:25 +08:00
..
arch/x86 DM: cleanup for header inclusions 2018-06-07 14:35:30 +08:00
bios dm: add vSBL binary in bios directory 2018-06-05 21:51:50 +08:00
core DM: cleanup for header inclusions 2018-06-07 14:35:30 +08:00
hw dm: fix the error code issues in passthrough.c 2018-06-08 12:05:25 +08:00
include DM: implement emulated npk pci device 2018-06-07 16:11:49 +08:00
samples dm: remove -U option in launch script. 2018-06-07 16:48:33 +08:00
MAINTAINERS update home page information 2018-05-15 17:19:39 +08:00
Makefile DM: implement emulated npk pci device 2018-06-07 16:11:49 +08:00
README.rst DM USB: involve the libusb 2018-05-29 10:35:05 +08:00

README.rst 

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/