2020
Jul 22, 2020
Attendees:
- Jerry Zhao - Panasonic
- Walt Miner - Linux Foundation
- Scott Murray - Konsulko
- Tadao Tanikawa - Panasonic
- Takashi Tsubone - Panasonic
- Mikhail Golubev - Open Synergy
- Alex Bennée - Linaro
- Francois Ozog - Linaro
- Victor Duan - Linaro
- Vincent Guittot - Linaro
- Kenji Hosokawa - ADIT
- Yuki Tsunashima - ADIT
- Jakub Luzny - GSoC student
- Parth Dode - GSoC student
Agenda:
- Topic 1: Messages & Information from AMM Meeting (Jerry, Jiancong Zhao, Walt Miner)
- VirtIO is officially declared as a new feature in AGL KK in the roadmap sharing by Walt.
- VirtIO related discussion was carried out in the advisory board, and following agreement achieved.
- agl-dev-community@lists.automotivelinux.orgIntegration of VirtIO into AGL has been accepted by Advisory Board.
- Study VirtIO as a candidate of the standard reference HAL interface for eco-system enhancement (including non-hypervisor environment)
- Keynote Session about VirtIO and a proposal of unified virtualized display by Panasonic
- Breakout Session about VirtIO technical sharing by OpenSynergy
- Topic 2: Presentation & Demo from Panasonic (Tsubone-san)
- Unified Virtual Display
- Details can be found in the keynote: https://static.sched.com/hosted_files/aglammsummer2020/3e/Device%20Virtualization%20Architecture%20in%20Automotive_Mashaige%20Mizuyama.pdf
- Topic 3: Linaro VirtIO Roadmap follow-up discussion- Technical Q&A (Alex, Vincent)
- Presentation slide : https://drive.google.com/file/d/12qcg5TNQhPYpptK3B0DAMJz-VQ0S0hZp/view?usp=sharing
Aug 5, 2020
Attendees:
- Jerry Zhao - Panasonic
- Walt Miner - Linux Foundation
- Scott Murray - Konsulko
- Tadao Tanikawa - Panasonic
- Takashi Tsubone - Panasonic
- Mikhail Golubev - Open Synergy
- Laurent Cremmer -Carmeq
- Mark Silberberger - Carmeq
- Nicolas Blazevic - Carmeq
- Alex Bennée - Linaro
- Mike Holmes - Linaro
- Victor Duan - Linaro
- Kenji Hosokawa - ADIT
- Jakub Luzny - GSoC student
- Rich Persaud
Agenda:
- Topic 1: Yocto Architecture for VirtIO FEDD integration Mikhail Golubev
- some SoC vendor's BSP kernel doesn't support Yocto Linux so that the virtio.scc may be not included.
- it's better to maintain the front end driver or the kernel configuration in AGL.
- Release candidate branch for AGL will be in January.
- general idea is on master, but for recipe (patch and yocto layer only) → sandbox, source code → code repository
Jerry, Jiancong Zhao need to check with Walt Miner on application of a new repository (JIRA ticket)
- Topic 2: VirtIO Backend Related Sharing Laurent Cremmer
- Presentation slide: AGL EG-Virt.pdf
- Topic 3: GSoC Project Progress Sharing Month #2 Parth Dode Jakub Luzny → move to next EG
Aug 19, 2020
Attendees:
- Jerry Zhao - Panasonic
- Walt Miner - Linux Foundation
- Scott Murray - Konsulko
- Tadao Tanikawa - Panasonic
- Mikhail Golubev - Open Synergy
- Laurent Cremmer -Carmeq
- Mark Silberberger - Carmeq
- Francois Ozog - Linaro
- Victor Duan - Linaro
- Kenji Hosokawa - ADIT
- Yuki Tsunashima - ADIT
- Eva Rio - Tuxera
- Joel Catala - Tuxera
- Christoph Mutz - Western Digital
- Matteo Zammattio - Western Digital
- Jakub Luzny - GSoC student
- Parth Dode - GSoC student
- Rich Persaud
Agenda:
- Topic 1: GSoC Project Progress Sharing Month #2 Parth Dode Jakub Luzny
- Topic 2: Follow-up Proposal for VirtIO Front-end Integration Mikhail Golubev
- Topic 3: Guest Speech on Xen Argo with VirtIO by Edgeform Chritopher Clark & Rich Persaud
Remaining Action Items:
- Jerry, Jiancong Zhao need to check with Walt Miner on application of a new repository (JIRA ticket)
- Walt Miner to find the editable doc for original AGL white paper.
Sep 2, 2020
Attendees:
- Jerry Zhao - Panasonic
- Walt Miner - Linux Foundation
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Laurent Cremmer -Carmeq
- Mark Silberberger - Carmeq
- Francois Ozog - Linaro
- Victor Duan - Linaro
- Kenji Hosokawa - ADIT
- Yuki Tsunashima - ADIT
- Eva Rio - Tuxera
- Joel Catala - Tuxera
- Christoph Mutz - Western Digital
- Marius Vlad - Collabora
- Jakub Luzny - GSoC student
- Parth Dode - GSoC student
- Rich Persaud
Agenda:
- Topic 1: Final Presentation of GSOC Jailhouse Project Jakub Luzny Parth Dode
- Topic 2: Follow-up Q&A about virtio-argo (Chritopher Clark & Rich Persaud)
- Topic 3: Conclusion & Future Plan of AGL KK VirtIO Integration Mikhail Golubev
Mikhail Golubev please upload the slide you presented in last EG
Sep 16, 2020
Attendees:
- Jerry Zhao - Panasonic
- Walt Miner - Linux Foundation
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Laurent Cremmer -Carmeq
- Mike Holmes - Linaro
- Francois Ozog - Linaro
- Victor Duan - Linaro
- Kenji Hosokawa - ADIT
- Yuki Tsunashima - ADIT
- Tadao Tanikawa - Panasonic
- Eva Rio - Tuxera
- Joel Catala - Tuxera
- Christoph Mutz - Western Digital
- Marius Vlad - Collabora
Agenda:
- Topic 1: Future Plan of VirtIO Device in AGL
- virtio-can not virtio-vehicle (virtio-can also include LIN)
- virtio-camera: what is up with DRM?
- virtio-tuner not virtio-radio (Linux v4l2 interface)
- ACRN has smth for USB → needs to be checked
- GNSS via virito-scmi? → needs to be checked
- Mikhail Golubev to upload the slide.
Sep 30, 2020
Attendees:
- Jerry Zhao - Panasonic
- Walt Miner - Linux Foundation
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Nicolas Blazevic - Carmeq
- Victor Duan - Linaro
- Francois Ozog - Linaro
- Tadao Tanikawa - Panasonic
- Christoph Mutz - Western Digital
- Matteo Zammattio - Western Digital
- Marius Vlad - Collabora
Agenda:
- Topic 1: Future Plan of VirtIO Device in AGL
- How we can brainstorm what kind of virtio devices are necessary to AGL
- method 1: invite IVI, IC experts from other EG to join the discussion
- Email in the mailing list is okay
- Inter-EG activities are handled in the SAT
- Announce & Invite in Dev Call is also possible (most people)
- method 2: invite GENIVI AVPS member to share their progress on the automotive virtio discussion
- method 1: invite IVI, IC experts from other EG to join the discussion
- What is our policy to decide which device should be integrated into AGL
- Option 1 (most strict): Only if the device has been upstreamed and official published in the OASIS specification
- Publish of OASIS specification will be the trigger for AGL virtio porting activities
- Option 2 (moderate): If the device has been upstreamed and has a certain plan to be included in the OASIS specification in near future
- Option 3 (most loose): Any devices that Virtualization EG members have consensus
Discussion: - Upstreamed drivers are mandatory
- Depending on AGL kernel version, some new devices may not be included. Backporting from the newer kernel is needed (in some circumstances, trouble may happen) → discuss whether it can be integrated in the form inside kernel trees or out of the kernel trees
- New device drivers (not upstreamed) has the similar situation with the above
Conclusion:
Depending on the maturity of the virtio device drivers, we can put into different places → all virtio drivers can be integrated in this way - Recipe: Put the new drivers to the meta-agl-devel for developing and testing, integrate the stable drivers in the meta-agl.
- Source Code: Staging (new drivers) & Src (stable drivers)
- Option 1 (most strict): Only if the device has been upstreamed and official published in the OASIS specification
- How we can brainstorm what kind of virtio devices are necessary to AGL
- Topic 2: OpenSynergy Plans for ALS VirtIO PoC & AGL KK Contribution Mikhail Golubev
OpenSynergy will distribute the PoC after KK contribution as a reference implementation of VirtIO. Jan Simon has suggested distributing methods such as "accepting terms" which already used by some AGL mebmer.
Oct 14, 2020
Attendees:
- Jerry Zhao - Panasonic
- Walt Miner - Linux Foundation
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Laurent Cremmer -Carmeq
- Mark Silberberger - Carmeq
- Nicolas Blazevic - Carmeq
- Mike Holmes - Linaro
- Alex Bennée - Linaro
- Victor Duan - Linaro
- Misami Hiramatsu - Linaro
- Kenji Hosokawa - ADIT
- Tadao Tanikawa - Panasonic
Agenda:
- Topic 1: Linaro Sharing for ALS PoC VICTOR DUAN
- AGL is working as a guest (front end)
- Hypervisor: KVM & Xen
- Hardware: different ARM boards (Socionext Developer Box, Armas 8040 MacchiatoBin)
- portability across different platform (independent from SoC & Hypervisor)
- virtio devices: virtio-net, virtio-blk, virtio-gpu. future: virtio-video, virtio-rpmb and etc.
- no special preference on whether virtio-pci or virtio-mmio
- the memory access limit will be not in the scope of the demo
- Xen hypervisor: similar approach to crosvm
- Original Target: End of this month (but it is postponed)
- for the ALS: blk, network and framebuffer (audio will be difficult for the current schedule)
- Work will be open.
- Progress can be traced in the following path: https://collaborate.linaro.org/pages/viewpage.action?pageId=147423498
- Topic 2: ALS Presentation
Video Submit Deadline: ? Walt Miner
Walt Miner to update the attendee of today's meeting
fix the link issue on the Wiki
Nov 11, 2020
Attendees:
- Jerry Zhao - Panasonic
- Walt Miner - Linux Foundation
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Mark Silberberger - Carmeq
- Alex Bennée - Linaro
- Victor Duan - Linaro
- Tadao Tanikawa - Panasonic
- Christoph Mutz - Western Digital
- Joel Catala - Tuxera
Agenda:
- Topic 1: Virtualization Webinar
Webinar: Device Virtualization Architecture, PanasonicWhen:
Thursday, 12 November 2020
10:00pm to 11:00pm
(UTC+00:00) UTCWhere:
Registration Required - See link belowOrganizer: Emily Olin eolin@linuxfoundation.org
Description:
AGL Community:
We are very excited to kick-off a new webinar series that will feature presentations from AGL members on open source technologies, trends, product/project updates, tutorials, and more.
Please register to join us for our first webinar on November 12th at 2:00 pm PT:
Device Virtualization Architecture in Automotive
Mizuyama Masashige, Automotive CTO, Panasonic
Thursday, November 12 at 2:00 PM Pacific
(Friday, November 13 at 7:00 am Japan)
- Topic 2: ALS Presentation & AGL KK VirtIO Porting Progress Checking
- Linaro: Jellyfish
a) KVM works fine. → working fine on the real board
b) Xen Dom0 works fine. has some trouble with DomU (on QEMU is okay, but on hardware still some ongoing issues)?
Xen virtio implementation → only supported virtio blk device
- OpenSynergy:
Mikhail Golubev please upload the slides you presented here.
on-schedule for the KK virtio porting
Suggestion: Upload the demo video of EG PoC after ALS demo onto the AGL official Youtube channel
Pending Mikhail Golubev VICTOR DUAN to check internally if this is okay
(https://www.youtube.com/channel/UC1axavgir413w00rwBHPAtQ)
Nov 25, 2020
Attendees:
Agenda:
- Topic 1: VirtIO KK Porting Progress Mikhail Golubev
- AGL KK progress is fine.
- only virtio-input multi-touch patch is still not available because not upstreamed in the Linux kernel main line (waiting for the LKML to accept)
- Yocto machine: merged in the AGL and additionally
- Question: demo image (set-up)
→ hypervisor distribution: Mikhail Golubevcheck internally
→ QEMU can also be also considered.
VICTOR DUAN tell us where we can find the implementation of Linaro's ALS QEMU demo- ALS image is the qemuarm64 JJ image from the website
- QEMU is lightly patched: https://patchew.org/QEMU/20201105175153.30489-1-alex.bennee@linaro.org/
- Question: Passthrough for GPU-3d?
- yes, for ALS
- for KK porting and reference implementation. VirtIO-gpu3d will be used insead
- Topic 2: ALS Presentation from Demo Jerry, Jiancong Zhao
- General arrangement for ALS Jerry, Jiancong Zhao
- Jerry, Jiancong Zhao will ask for the registration code for
- ALS Demo sharing with Q&A - Linaro VICTOR DUAN Alex
- backend for real hardware: put it into the Dom0
- Dom0 can be directly
- ALS Demo sharing with Q&A - OpenSynergy Mikhail Golubev
- General arrangement for ALS Jerry, Jiancong Zhao
Dec 9, 2020
Attendees:
Agenda:
- Virtual F2F Session in SAT
- ALS 2020 video:
- Linaro:
- OpenSynergy:
- ALS 2020 video:
2021
Jan 13, 2021
Attendees:
- Jerry Zhao - Panasonic
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Laurent Cremmer - Carmeq
- Victor Duan - Linaro
- Tadao Tanikawa - Panasonic
- Binghua - Qualcomm
- Sonic - ?
Agenda:
- Quick summary of virtual SAT on
- virtio devices in the list https://confluence.automotivelinux.org/display/VE/Support+VirtIO+Front+End+Driver+in+AGL has already be commited as a new machine (virtio-aarch64) in meta-agl-devel by
- new virtio machine accepted to meta-agl with SAT approval.
- Mikhail Golubev will commit the migration from meta-agl-devel to meta-agl by
- Progress of virtio reference implementation Mikhail Golubev
- The PoC will be ready by April and able to request download from AGL websites
- The backend and HV are proprietary but frontend (including virtio drivers) are open and can be customized
→ Announce the new virtio feature and reference implementation on KK in AB and AMM(?) Walt Miner
→ After moving to meta-agl, it can be announced
A draft of two/three scentences are needed
Build Instruction → e.g. https://docs.automotivelinux.org/en/master/#0_Getting_Started/2_Building_AGL_Image/5_2_Raspberry_Pi_4/
Jan-Simon Moeller create new category for virt-EG to write documentation about virtio
- Collaboration proposal from RHSA-EG (Mazda is the leader)
- Present the reference implementation PoC in AMM
- What is the deadline for CFP
- Workshop for discussion about virtio planned to be held after new year (rough plan)
- 1st Open Discussion Workshop: Optimization of VirtIO-gpu3d (how to achieve zero-copy in gpu 3d mode)
- 2nd Open Discussion Workshop: What devices need to be virtualized for an virtual AGL (what else virtio-devices needed for AGL) TBD
- Future EG Planning
- 1st Workshop (virtio-gpu3d topic) → Jerry, Jiancong Zhao will email to invite community members (especially gpu, mesa/virgl expert to join)
- normal EG session
- TBD: 2nd Workshop (necessary virtual devices for AGL) → Jerry, Jiancong Zhao will email to invite community members (especially gpu and virtio expert to join)
Walt Miner please share the google doc link of past EG white paper.
- Last but important:
- Thanks so much for all the EG members for great work in 2020! Happy new year!
Jan 20, 2021
Attendees:
- Jerry Zhao - Panasonic
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Vasyl Vavrychuk - OpenSynergy
- Andriy Tryshnivsky - OpenSynergy
- Laurent Cremmer - Carmeq
- Mark Silberberg - Volkswagen
Victor Duan - Linaro- Alex Bennée (Stratos Tech Lead) - Linaro
- Peter Griffin (Multimedia Tech Lead) - Linaro
- Tadao Tanikawa - Panasonic
- Binghua - Qualcomm
- Marius Vlad - Collabora
- Tadao Tanikawa - Panasonic
- Kenji Hosokawa - ADIT
Harunobu Kurokawa - Renesas
Masahiro Hasegawa - Renesas
- Tomeu Vizoso
Venkata Ramalinga Prasad Tadepalli
- Parag Borkar - OpenSynergy
Agenda:
- 1st VirtIO Workshop: VirtIO GPU-3d Performance - How to achieve Zero-Copy with AGL
- Open Synergy Slides (How to achieve zero-copy on Renesas SoC)
VirtIO_GPU_3D_Workshop.pdf- cache coherence between CPU/GPU
- Discussion Points:
- Does VirtIO GPU supports zero-copy in QEMU, crosvm, etc?
- crosvm uses host allocations, is it requirement for something?
- progress in crosvm is on-going and realted to Vulkan.
- crosvm use the virtio-pci (to expose host memory to guest - which also avoid memory copy)
- Any available standard solution/platform to solve this zero-copy for the AGL community
- Tomeu: Collabora is having project in ChromeBook (which is more focusing on gaming) but expose host memory to guest
- Alex: not using virtio-pci may be the limitation (kiran explained why it is not because limitation →with 64 bit PCI addressing the windows are more than large enough)
- Conclusion: there's no good solution available at the moment for zero-copy mechanism for automotive use case
- Note: sometimes, copying smaller buffers ( < 4k) is faster then using zero copying
- Does virglrender supports zero-copy of OpenGL buffers (vertex buffer, element buffer, etc.)?
- there are some mechanisms in virglrender. no copy happened. (although some limitation may exist)
- EXT_image_dma_buf_import fails with EGL_BAD_ACCESS
- Tomeu: Reason is that specific platform stride requirements are not propagated to the guest. New IOCTL exist to propagate stride info to the guest, but not mainlined yet.
https://gitlab.freedesktop.org/olv/drm-misc-next/-/commit/6b2013a48528fc9ea1e82c6b68c85521f6d03041
- why stride information is needed in guest? This info will be pitched to MESA3d.
- GPU/display supports only 32-bit addresses. Issue: ensure device guest (mesa) allocates memory form lower addresses
- Bounce buffers:
- Stratos prj is interested in a mechanism to limit guest's allocations to a particular mem window (potentially, breaking virtio driver mem model)
- Kernel dma pools are being looked at. This will result in memcpy from userspace to kernel dma capable pool (page cache as well?)
- Bounce buffers:
- Tomeu: Reason is that specific platform stride requirements are not propagated to the guest. New IOCTL exist to propagate stride info to the guest, but not mainlined yet.
- Virglrenderer tests fails on R-CAR
- Does VirtIO GPU supports zero-copy in QEMU, crosvm, etc?
Feb 3, 2021
Attendees:
- Jerry Zhao - Panasonic
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Vasyl Vavrychuk - OpenSynergy
Andriy Tryshnivsky - OpenSynergyLaurent Cremmer - CarmeqMark Silberberg - VolkswagenVictor Duan - Linaro- Francis Ozog - Linaro
- Masami Hiramatsu - Linaro
Alex Bennée (Stratos Tech Lead) - LinaroPeter Griffin (Multimedia Tech Lead) - Linaro- Tadao Tanikawa - Panasonic
- Binghua - Qualcomm
Marius Vlad - Collabora- Tadao Tanikawa - Panasonic
- Kenji Hosokawa - ADIT
Agenda:
- Development Progress of VirtIO feature for KK
- virtio machine (virtio-aarch) has been merged to meta-agl (thanks Jan-Simon Moeller)
- virtio related documentation (how to build, how to deploy) has been pushed but pending for review:
https://gerrit.automotivelinux.org/gerrit/q/topic:%22SPEC-3778-virtio-documentation%22+(status:open%20OR%20status:merged)- 1 bitbake build (multi-config)
- multi-config can create image with backend and frontend in one build (one place) → still possible to build/update specific VM
- documentation still need to be updated
- 1 bitbake build (multi-config)
- Include virtio as KK feature into release note (Walt Miner, Jan-Simon Moeller)
- Trial on KVM and Xen (Linaro Alex Bennée)
- Development Progress of AGL KK VirtIO Reference Demo on Reference Hardware Mikhail Golubev
- Sample virtio building for Reference Hardware EG
- Next Workshop about VirtIO-GPU
- Summary of 1st Workshop
- Candidate:
Feb 17, 2021
Attendees:
- Jerry Zhao - Panasonic
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Vasyl Vavrychuk - OpenSynergy
- Parag Borkar - OpenSynergy
Andriy Tryshnivsky - OpenSynergyLaurent Cremmer - CarmeqMark Silberberg - VolkswagenVictor Duan - Linaro- Francis Ozog - Linaro
- Masami Hiramatsu - Linaro
- Alex Bennée (Stratos Tech Lead) - Linaro
- Peter Griffin (Multimedia Tech Lead) - Linaro
- Tadao Tanikawa - Panasonic
- Binghua - Qualcomm
Marius Vlad - Collabora- Tadao Tanikawa - Panasonic
- Kenji Hosokawa - ADIT
Agenda: 2nd workshop to Discuss how to achieve zero-copy for VirtIO GPU (3d mode)
Workshop Topic:
Follow up discussion on how to achieve Zero-Copy for VirtIO-GPU (3d mode)
Workshop Agenda:
- Quick review of 1st workshop discussion*
*For the 1st workshop meeting notes, please find at https://confluence.automotivelinux.org/display/VE/Meeting+Agenda#MeetingAgenda-Jan20,2021 - Discussion on two methods to achieve zero-copy: dynamic vs dedicated heap
- GPU/CPU cache coherency challenges
- Host allocation (share hostmem with guest) vs Guest allocation
- ChromeOS uses dynamic hostside allocation
- does host allocation and sharing introduce security concerns?
- (over to Parag, OpenSynergy)
- Dynamic vs Dedicated hostside allocation
- where in host memory needs to be exposed to guest
- host also has knowledge of where the real HW can see
- Dedicated GPU heap (VRAM):
- Idea: have a dedicated inter-vm shared mem area, guest requests buf params from hosts and allocates objects in shared memory and "sends" objects to host (paddrs)
- What is needed to be done:
- virtio gpu kernel driver adaptations → allocations from vram will be needed as well
- MESA3d adaptations?
- virgl adaptations
- Can VFIO on Intel be applicable to the zero-copy case?
- Which address space are buffers in? Can we use IOMMU for that?
- IOMMU is a must have to defeat against DMA attacks
- Intel pioneered VFIO; Huawei did develop so called "warpdrive" technology
- François-Frédéric Ozogto check if the Huawei guy would like to give a speech on "warpdrive" in the Virtualization EG?
- WarpDrive details:
- Type 1/2 HV: does the problem also apply to T2 HV?
- There should be no difference between T1/2 HV, the same problem exists.
- Xen HV:
- QEmu - generic virtio backend for Xen
- Virtio patches are being discussed
- Updates from GPU workshop #1
- Stride requirements were found (for RCar), hardcoded, but visual artifacts can be seen → activity postponed
- Discuss on how we should move forward
- Slides:
March 3, 2021
Attendees:
- Jerry Zhao - Panasonic
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Vasyl Vavrychuk - OpenSynergy
Andriy Tryshnivsky - OpenSynergyLaurent Cremmer - CarmeqMark Silberberg - VolkswagenVictor Duan - Linaro- Francis Ozog - Linaro
- Masami Hiramatsu - Linaro
Alex Bennée (Stratos Tech Lead) - LinaroPeter Griffin (Multimedia Tech Lead) - Linaro- Tadao Tanikawa - Panasonic
- Binghua - Qualcomm
Marius Vlad - Collabora- Tadao Tanikawa - Panasonic
- Kenji Hosokawa - ADIT
Agenda:
- Question from Hosokawa-san:
- would like to watch the archive of unified HMI demo
- ALS Presentation from Virt-EG: Eugene Kheyfets
- Webinar on Device Virtualization:
- would like to know when the unified HMI
- would like to watch the archive of unified HMI demo
- GSoC Proposal from Virt-EG
- Link: https://wiki.linuxfoundation.org/gsoc/2021-gsoc-agl
Experience Level: Description
Beginner:
Task #1: webcam demo app - write an app exposing the v4l webcam feed
your task will be to develop an QT/QML-based application to display the a webcam feed - talk to jsmoeller (at) linuxfoundation.org
Intermediate:
Task #2: demo app for the IIO service. Display sensor data from the iio-service on the display.
Your task will be to develop an QT/QML-based application to show data from sensors - talk to jsmoeller (at) linuxfoundation.org
Advanced:
Task #3: Platform Development - create or enhance the container image
Your task will be to either create or enhance a container-based setup using AGL - talk to jsmoeller (at) linuxfoundation.org
Advanced++:
Task #4 integration of ROS (Robot OS - meta-ros) - talk to jsmoeller (at) linuxfoundation.org
Task #5 extend the jailhouse support
- VirtIO KK Release
- VirtIO related documentation disappeared.
https://docs.automotivelinux.org/en/master/- available on the git but not on the webpage (Jan-Simon Moelleris checking)
- it seems to related to broswer cache and Jan to check further. But for virtio documentation it became alive again. https://docs.automotivelinux.org/en/master/#0_Getting_Started/2_Building_AGL_Image/5_4_Virtio/
- VirtIO related documentation disappeared.
- All Member Meeting (Mar 16~17)
- https://events.linuxfoundation.org/agl-amm/program/schedule/
- Introduction to Automotive Grade Linux - Walt Miner, The Linux Foundation
- Mention Virt-EG work VirtIO? Any input/slide need from us?
- Will introduce KK features
- Jerry, Jiancong Zhaoto prepare a slide about Virt-EG work and send to Walt by
- (Virtualization Related) Obtaining VirtIO-enabled Virtualized AGL KK Reference Demo Distribution - Mikhail Golubev, OpenSynergy GmbH
- deadline for recording video is Friday.
- (Virtualization Related) Software Define Architecture in a Car: Using VIRTIO to Change the Way the Car Software is Developed. - Tero Salminen, OpenSynergy GmbH
- (Virtualization Related) HTML5 on the AGL Demo Platform with Chromium and WAM - Lorenzo Tilve & Antía Puentes, Igalia
- (by EG member Kenji Hosokawa ) Functions and Requirements of Production Readiness Profile - Riku Nomoto, Woven Alpha, Inc. & Kenji Hosokawa, Advanced Driver Information Technology Corp.
- IC-EG Leader: Haraki-san haraki@hhq.suzuki.co.jp for virtualized IC use case
- IC-EG QM (VirtIO) with AGL
- FuSa features with ELISA
- ElISA Information;
- IVI-EG Leader: Nomoto-san riku.nomoto@woven-planet.global
- IC-EG Leader: Haraki-san haraki@hhq.suzuki.co.jp for virtualized IC use case
- Follow-up of last workshop on VirtIO-gpu
- Can VFIO on Intel be applicable to the zero-copy case?
- Which address space are buffers in? Can we use IOMMU for that?
- IOMMU is a must have to defeat against DMA attacks
Intel pioneered VFIO; Huawei did develop so called "warpdrive" technology → mainly for "server" hardware acceleration encryption & decryption (kind of passthrough but can be shared across different VMs)
https://connect.linaro.org/resources/bkk19/bkk19-401/Type 1 hypervisor can passtrhough device for guest VM easily. But driver need to be have in the front end guest. (will be dependent onto SoC platform)
IOMMU should be able used but not used in the crosvm (instead, used host allocation). Coherent memory is needed.
- Linaro Hiramatsu's comment: to share the memory between the guest, I think we need ivshmem like driver. (but that is not transparent)
Mail from Kenneth (Huawei)
Hello, Jerry,
Nice meeting you. We are happy to discuss UADK with colleagues of the same profession. We are just afraid that we cannot give what you need;). Because it seems you are looking for VFIO rather than UADK. We tried to merge our requirement to VFIO initially. But we gave up after the first RFC. To us, the major down side of VFIO is that it is a practical device. But we don’t take it a device. We take it a heterogeneous CPU. In UADK, the process attach to the accelerator, the accelerator share whole or part of the address space of the process. So the process can deliver task to the accelerator without warrying how to copy data to the accelerator. So there is no independent device is created, no DNA operation is provided. It is just for sharing memory between CPU and the accelerator. Because of this, we solve different set of problem. E.g. we have to take care of process-cloning to duplicate/stop the interface to child process.
But it seem you are looking for a solution to isolate some GPU resource for particular VM. This is exactly what VFIO trying to do.
So now it is you who may want to tell me. Are you guys really want to know the detail of UADK? J
Cheers
- Can VFIO on Intel be applicable to the zero-copy case?
- Future Activity of EG
- Welcome proposal from members
- Feature List for 2021
- Roadmap for Virt-EG of 2021
- Walt need to present to SAT within two weeks
March 17, 2021
Attendees:
- Jerry Zhao - Panasonic
- Jan-Simon Moeller - Linux Foundation
- Scott Murray - Konsulko
- Mikhail Golubev - Open Synergy
- Masami Hiramatsu - Linaro
- Kenji Hosokawa - ADIT
- Anmol -
- Nedeljko Miljevic
Agenda:
- Add a hashtag in the mailing list (agl-virt)
- Road map discussion (EG Members voting required)
2021 Roadmap
March 31, 2021
Attendees:
Agenda:
- (30m) Guest Speaker's Sharing about Container & DRM activities in IC-EG
Damian Hobson-Garcia - (3m) Quick summary of F2F SAT
- Cooperate with IVI-EG and IC-EG in SAT, especially
- Define necessary devices for overall AGL (also find missing virtio frontends)
- Define common device interface (take advantage of virtio driver I/F) for both virt and non-virt AGL
- (Not discussed in SAT yet) port IVI and IC profile (from IVI-EG and IC-EG) on the top of virt-EG's work (maybe can have a collaborative demo in some events?)
- In to enhance cooperation with other EGs Jerry, Jiancong Zhao plans to join other EGs' call as an audience - (20m) Follow-up discussion & Final Conclusion on 2021 Roadmap
- (7m) Wrap-up