Consolidated Display System for Automotive using XenGT Automotive - PowerPoint PPT Presentation

Consolidated Display System for Automotive using XenGT Automotive Linux Summit 1-2 June, Tokyo Bumhyeon Baek*, Honggul Jun, Woosung Kim LG Electronics Inc.

1. Background  The smart space for users is expanding over home and especially car, which is the second most friendly space.  The automotive cockpit is constantly challenged to deliver optimum solutions which can effectively provide valuable support to driving and help create a comfortable and safe environment inside the vehicle. 1) 2) 3) 1) http://www.seriouswonder.com/futuristic-self-driving-car-design-by-rinspeed/ 2) http://galleryhip.com/future-car-interior-design.html 3) http://www.theregister.co.uk/Print/2012/03/05/car_week_future_car_tech/ 1/10

2. Automotive Cockpit Trend Stand-alone Connected Integrated • Separated Functionality • Free form Large Display • Cross-function Multiple Display • No Information Sharing • Multiple information Integrated • Information Sharing • Straightforward HMI * • Intuitive HMI • Complicated HMI 1) 3) 2) 4) Hyndai Elantra 1) 3) http://cartype.com/pages/738/gauge_clusters http://www.gizmag.com/volkswagen-golf-r-touch/35472/ 2) http://www.automotion.lu/article/tesla-insane-mode-les- 4) http://mattfinbowdesign.com * HMI: Human Machine Interface reactions-en-video 2/10

3. Advantages & Requirements of Consolidated Display System  Advantages  Benefits  OEM Collaboration for UX Differentiation UX/UI Integration HMI  Full Re-configurable value creation Display Integration  Safety & Convenience with Reliability OS Consolidation System  Efficient Resource Management (CPU & GPU) SoC Consolidation  Requirements Cluster and IVI can be concurrently displayed on one display. • Cluster and IVI system can share GPU to show graphical and multiple infortainment. • They can communicate with each other for display consistency. • IVI can exploit HMI such as touch. • 3/10

4. GPU virtualization of XenGT  XenGT is a GPU Virtualization Technology. Qemu is a emulator that supports virtualization when executing under the Xen hypervisor. • The Xen uses Qemu to emulate PC hardware, including BIOS, IDE disk controller. Dom0 is a privileged domain which contains drivers for hardware, as well as the toolstack • to control VMs. Domain 0 is often referred to as Dom0. VM is unprivileged domain with no access to the hardware. • Xen is an open-source (GPL) type-1 or baremental hypervisor. •  XenGT implements a mediated pass-through architecture, running a native graphic driver in VMs to archieve high performance. https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt 4/10

5. Overall Architecture Dom0 VM1 Factor Feature CPU Intel Core i3-4010U xl Qemu (tool of xen) Memory 8G RAM SDL System Hypervisor XenGT configuration (based on XEN) Mediator OS Dom0: Ubuntu 14.04 Graphics Graphics VM: Ubuntu 14.04 driver driver Scheduler Hypervisor (Xen) CPU GPU Framebuffer VM’s Framebuffer Customized part Data 21.5 ” Large Display Control http://events.linuxfoundation.org/sites/events/files/slides/XenGT-LinuxCollaborationSummit-final_1.pdf 5/10

6. Graphic overlay architecture using XenGT Dom0 VM1 Dom0 App DomU App Qemu Compositor (X11, Weston) SDL IVI Cluster + overlaped Kernel DRM DRM Dom0’s Memory- VM’s Memory - Mediator (vgt driver) mapped register mapped register Xen(Hypervisor) Physical Memory- GPU Framebuffer VM’s Framebuffer mapped register Customized part 21.5 ” Large Display Data Control 6/10

7. Inter-Domain Communication  This module provides message-based communication mechanism between Dom0 and VM. Dom0 VM1 Event Buffer Cluster IVI Kernel Kernel I/O Event I/O Event Misc device file Misc device file (/dev/idc) (/dev/idc) IDC Frontend Driver IDC Backend Driver Data Buffer Xenstore Data Buffer Grant Table Notify Notify Event Channel Xen(Hypervisor) Meta Data for shared memory Developed part Data Control 7/10

8. Demo  We displayed the result of system in CES 2015. ※ This figure is not real image because the output is a LGE confidential. Because of you Cluster layer IVI layer Touch area 8/10

9. Conclusions  Consolidated display system is based on virtualization technology.  Cluster and IVI system can directly access to GPU for graphical and multiple information integration.  The cluster and IVI screen are overlayed, it allows us to use digital cluster and IVI at the same time. 9/10

10. Future work  Micro-kernel and Real-time kernel approach for Dom0 Fast boot •  Para-Virtualization Drivers for specific SoC  Guest OSes Support compatibility Linux-based OS • Such as Android, QNX, GENIVI and webOS  ISO 26262 certification 10/10

Thank you Questions?

Speaker : Bumhyeon Baek Honggul Jun Senior Research Engineer at LG Electronics Principal Research Engineer at LG Electronics E-mail: bumhyeon.baek@lge.com E-mail: honggul.jun@lge.com Woosung Kim Chief Research Engineer at LG Electronics E-mail: rain.kim@lge.com