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
Jiaqing Zhao 75b031b63c dm: pci: read dsm size from igd device for igd passthrough 
Currently the DSM (Data of Stolen Memory) size was hardcoded to 64M in
ACRN, meaning that users must set "DVMT Pre-Allocated" to 64M in order
to make IGD passthrough (GVT-d) to work. This patch reads the BIOS-
configured memory size from GGC (GMCH Graphics Control, 0x50) register
and passthrough corresponding area to guest.

Tracked-On: #8432
Signed-off-by: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
Reviewed-by: Jian Jun Chen <jian.jun.chen@intel.com>
 		2023-07-27 12:23:12 +08:00
..
arch/x86 Update copyright year range in code headers 2022-07-15 11:48:35 +08:00
bios OVMF release v3.0 2022-03-31 09:06:34 +08:00
core asyncio: refine the setup ioctl 2022-11-25 10:43:34 +08:00
hw dm: pci: read dsm size from igd device for igd passthrough 2023-07-27 12:23:12 +08:00
include dm: pci: read dsm size from igd device for igd passthrough 2023-07-27 12:23:12 +08:00
lib Update copyright year range in code headers 2022-07-15 11:48:35 +08:00
log Update copyright year range in code headers 2022-07-15 11:48:35 +08:00
Makefile dm: change the version format 2022-11-21 13:23:28 +08:00
README.rst doc: terminology cleanup in DM readme 2021-11-24 06:29:25 -08:00
samples acrn-config: Reorg config tool folder 2021-01-27 11:08:28 +08:00

README.rst 

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

Introduction
============

The ACRN Device Model provides **device sharing** capabilities between the
Service VM and post-launched User VMs. It is a component that is used in
conjunction with the `ACRN Hypervisor`_ and is installed within the Service
VM.

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