OrgACRN
/
acrn-hypervisor
mirror of https://github.com/projectacrn/acrn-hypervisor.git
1
0
Fork 0
Code Issues Releases Wiki Activity
acrn-hypervisor/devicemodel
History
Minggui Cao 0e49f85a25 improve memory allocation for UOS by hugeTLB mmap 
check if there are enough free huge pages(1GB & 2MB now) for UOS,
if no, it will try to reserve more pages for UOS.

here are two examples
1. if system has free huge pages: 1 page of 1GB size, 0 page of 2MB.
one UOS need 2GB + 500MB memory, it will try to reserve one more 1GB
page and 250 2MB pages from system. If enough free system memory, it
can succeed.

2. if system has free huge pages: 4 pages of 1GB size, 0 page of 2MB.
one UOS need 2GB + 500MB, 1GB huge pages 4 > 2, it's enough, and 2 pages
left. It will try to reserve 250 2MB pages from system free memory,
if failed, it will try to release 1 of the 2 left 1GB pages. And then
try to reserve 250 2MB pages.

Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
 		2018-06-21 17:01:23 +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 improve memory allocation for UOS by hugeTLB mmap 2018-06-21 17:01:23 +08:00
hw IOC mediator: Implement VM monitor operations 2018-06-21 11:27:15 +08:00
include HV: treewide: enforce unsignedness of pcpu_id 2018-06-21 16:59:21 +08:00
samples script: add plane restriction parameters for NUC 2018-06-20 13:24:08 +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/