- Openamp-system-reference - lists.openampproject.org

2026-03-25 OpenAMP System Reference Notes and Action items

by Chan King Choy, Nathalie

[Public] Hi all, Notes from the call are posted at: https://github.com/OpenAMP/openamp-system-reference/wiki/OpenAMP-System-Ref… Summary of action items: * @Stabellini, Stefano<mailto:stefano.stabellini@amd.com> to ensure ZynqMP gets addressed eventually for SystemDT flow * @Bill Mills<mailto:bill.mills@linaro.org> take a look at https://github.com/OpenAMP/openamp-system-reference/pull/101 * @Shah, Tanmay<mailto:tanmay.shah@amd.com>: Will adapt makefile to be able to specify udev install folder * @Arnaud POULIQUEN<mailto:arnaud.pouliquen@st.com> to update Zephyr for next OpenAMP release & notify system reference group to review the PRs * @Bill Mills<mailto:bill.mills@linaro.org> to invite Daniel from NXP to OpenAMP Discord to see if he can help with testing on NXP for release * Nathalie to send meeting series for Daylight Savings Please let us know if you spot any errors or important omissions. Thanks & regards, Nathalie

7 months, 2 weeks

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OpenAMP System Reference - Daylight Savings 2026

by Chan King Choy, Nathalie

Meeting notes posted at: https://github.com/OpenAMP/openamp-system-reference/wiki/OpenAMP-System-Ref… [https://st2.zoom.us/static/6.3.54678/image/new/ZoomLogo_110_25.png]<https://zoom.com/> Hi there, Nathalie Chan King Choy is inviting you to a scheduled Zoom meeting. Join Zoom Meeting<https://amd.zoom.us/j/99855591196?pwd=EMwQr8jl0vL6sS1cU4yxqqi7AZYvTa.1&from…> One tap mobile: US: +19292056099,,99855591196#,,,,*9149471546#<tel:+19292056099,,99855591196#,,,,*9149471546#> or +16699006833,,99855591196#,,,,*9149471546#<tel:+16699006833,,99855591196#,,,,*9149471546#> Meeting URL: https://amd.zoom.us/j/99855591196?pwd=EMwQr8jl0vL6sS1cU4yxqqi7AZYvTa.1&from… Meeting ID: 998 5559 1196 Passcode: JnKZe3*jjS Join by Telephone For higher quality, dial a number based on your current location. Dial: +1 929 205 6099 US (New York) +1 669 900 6833 US (San Jose) +1 720 928 9299 US (Denver) 833 928 4609 US Toll-free 833 928 4610 US Toll-free 877 853 5257 US Toll-free 888 475 4499 US Toll-free 833 548 0276 US Toll-free 833 548 0282 US Toll-free 833 928 4608 US Toll-free +91 406 480 2722 India +91 446 480 2722 India +91 806 480 2722 India +91 80 71 279 440 India +91 116 480 2722 India +91 226 480 2722 India +91 22 71 279 525 India 000 800 001 4002 India Toll-free 000 800 050 5050 India Toll-free 000 800 050 2340 India Toll-free 000 800 050 2400 India Toll-free +353 6 163 9031 Ireland +353 1 536 9320 Ireland +353 1 653 3895 Ireland 1800 719 875 Ireland Toll-free 1800 901 561 Ireland Toll-free 1800 943 965 Ireland Toll-free 1800 949 238 Ireland Toll-free +65 3158 7288 Singapore +65 3165 1065 Singapore 800 852 6054 Singapore Toll-free 1800 407 5602 Singapore Toll-free 800 101 3814 Singapore Toll-free Meeting ID: 998 5559 1196 Passcode: 9149471546 International numbers<https://amd.zoom.us/u/abcC3tB68C> Join from an H.323/SIP room system H.323: 144.195.19.161 (US West) 206.247.11.121 (US East) 221.122.88.195 (Mainland China) 137.66.136.22 (India Mumbai) 137.66.140.8 (India Hyderabad) 159.124.15.191 (Amsterdam Netherlands) 159.124.47.249 (Germany) 159.124.104.213 (Australia Sydney) 159.124.74.212 (Australia Melbourne) 170.114.134.121 (Hong Kong SAR) 170.114.180.219 (Singapore) 64.211.144.160 (Brazil) 159.124.168.213 (Canada Toronto) 159.124.196.25 (Canada Vancouver) 170.114.194.163 (Japan Tokyo) 147.124.100.25 (Japan Osaka) Meeting ID: 998 5559 1196 Passcode: 9149471546 SIP: 99855591196(a)zoomcrc.com<mailto:99855591196@zoomcrc.com> Passcode: 9149471546

7 months, 2 weeks

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Adding Daniel to OpenAMP discord channel

by Bill Mills

Hi Daniel, We would like to add you to the OpenAMP discord. Is that ok? What is your discord ID? Thanks, Bill -- Bill Mills Principal Technical Consultant, Linaro +1-240-643-0836 TZ: US Eastern Work Schedule: Tues/Wed/Thur

7 months, 2 weeks

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Calling for agenda: 2026-03-25 OpenAMP System Reference

by Chan King Choy, Nathalie

[Public] Hi all, Please let us know your agenda topics. Here is what I collected so far: * @Evensen, Tomas<mailto:tomas.evensen@amd.com> and @Stabellini, Stefano<mailto:stefano.stabellini@amd.com>: greater uptake of System Devicetree via openamp-system-reference * Recent PRs * https://github.com/OpenAMP/openamp-system-reference/pulls * https://github.com/OpenAMP/openamp-system-reference/pull/94 * Tanmay to ping Arnaud when ready for him to review system reference PR94 * https://github.com/OpenAMP/openamp-system-reference/pull/98 * Tanmay to address changes requested by Arnaud & need another reviewer * https://github.com/OpenAMP/openamp-system-reference/pull/99 * Sipke to respond to Arnaud's question & need another reviewer * https://github.com/OpenAMP/openamp-system-reference/pull/100 * Tanmay to address Arnaud's request & need another reviewer * https://github.com/OpenAMP/openamp-system-reference/pull/101 * Tanmay to address Arnaud's questions & need another reviewer * https://github.com/OpenAMP/openamp-demo/pulls * No open PRs * https://github.com/OpenAMP/openamp-docs/pulls * PR82 is still in draft state * https://github.com/OpenAMP/open-amp/pulls * https://github.com/OpenAMP/open-amp/pull/677 * Needs reviewers * https://github.com/OpenAMP/open-amp/pull/678 * Approved by Arnaud. Need 1 more. * https://github.com/OpenAMP/libmetal/pulls * https://github.com/OpenAMP/libmetal/pull/357 * Approved by Tanmay. Need 1 more. * https://github.com/OpenAMP/libmetal/pull/358 * Approved by Arnaud. Need 1 more. * Any upcoming features to discuss ahead of April Feature Freeze? * Any Zephyr topics? * OpenAMP docs improvement project topics? * 2026 task tracker<https://docs.google.com/spreadsheets/d/1NyVPqvcSmPVu4SjRsFHboyLPdByWo38MIAD…> / individual updates * EU CRA. Some useful resources: * FOSDEM 2026 "Why is the CRA worth a FOSS maintainer's attention?" recording<https://fosdem.org/2026/schedule/event/PFM7TL-panel_why_is_the_cra_worth_a_…> * FOSDEM 2026 "From Minimum Compliance to Meaningful Stewardship" recording<https://fosdem.org/2026/schedule/event/FEJGDD-panel_from_minimum_compliance…> * May 2025 Embedded Recipes talk by Greg KH<https://youtu.be/u44eMQpGlxA?si=JQgdirVeL1_pYU3O> * Bonus: This FOSDEM 2026 presenter did an amazing job at making Erlang's approach to CRA compliance entertaining<https://fosdem.org/2026/schedule/event/JFJV3R-story-of-the-erlang-journey-t…> * But probably the only takeaway for us is that they do have their reports go onto GitHub issues * Wishing Tomas a happy retirement Thanks & regards, Nathalie

7 months, 3 weeks

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2026-03-11 OpenAMP System Reference Notes and Action items

by Chan King Choy, Nathalie

[Public] Hi all, Notes from the call are posted at: https://github.com/OpenAMP/openamp-system-reference/wiki/OpenAMP-System-Ref… Summary of action items: * Tanmay to explore udev rules and group permissions further and email updates to list. * Prepopulate udev rules to automate device creation and permission settings. * Create a dedicated RPMsg group during package installation, with permissions ready for admin or distro to add users. * Beleswar and Devarsh * Adopt Virtio Message: For tasks involving data buffers and media/GPU interactions, prioritize Virtio Message. * RPMsg for Specific Use Cases: Utilize RPMsg for low-footprint IPC and register interface abstraction. * Collaborate on Standardization: TI to consider proposing extensions for standardized bus messages to address lifecycle event communication. * Explore Dynamic Discovery: Investigate Rob Herring's dynamic device tree approach for future device discovery enhancements. Please let us know if you spot any errors or important omissions. Thanks & regards, Nathalie

8 months

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OpenAMP System Reference - WARNING EU/NA time zone offset weird weeks!

by Chan King Choy, Nathalie

[AMD Official Use Only - AMD Internal Distribution Only] Reminder due to time zone changes. Starting in 25 minutes. Get Outlook for iOS<https://aka.ms/o0ukef> ________________________________ From: Chan King Choy, Nathalie Sent: Thursday, October 30, 2025 1:54:25 PM To: Chan King Choy, Nathalie <nathalie.chan-king-choy(a)amd.com>; OpenAMP System Reference <openamp-system-reference(a)lists.openampproject.org> Cc: Ashfield, Bruce <bruce.ashfield(a)amd.com>; Nathalie Chan King Choy <nathalie-ckc(a)kestrel-omnitech.com>; Iuliana Prodan <iuliana.prodan(a)nxp.com>; Shah, Tanmay <tanmay.shah(a)amd.com>; Ed Mooring <ed.mooring(a)gmail.com>; Bill Mills <bill.mills(a)linaro.org>; Milea, Danut Gabriel (Danut) <Danut.Milea(a)windriver.com> Subject: OpenAMP System Reference - WARNING EU/NA time zone offset weird weeks! When: Wednesday, March 11, 2026 9:00 AM-10:00 AM. Where: https://amd.zoom.us/j/97464922416?pwd=kQYKa6KZ0w3HkECTq5egycdBaZWXB7.1 Nathalie Chan King Choy is inviting you to a scheduled Zoom meeting. Join Zoom Meeting https://amd.zoom.us/j/97464922416?pwd=kQYKa6KZ0w3HkECTq5egycdBaZWXB7.1 Meeting ID: 974 6492 2416 Passcode: qh!x@*V2## --- Join by SIP • 97464922416(a)zoomcrc.com<mailto:97464922416@zoomcrc.com> Passcode: 3217100567 Join instructions https://amd.zoom.us/meetings/97464922416/invitations?signature=2zd2Jemi_cTU…

8 months

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Calling for agenda: 2026-03-11 OpenAMP System Reference - WARNING EU/NA time zone offset weird weeks!

by Chan King Choy, Nathalie

[Public] [CC OpenAMP board on this one, since proposing EU CRA topic - let me know if you want to join & don't have the meeting invite] Hi all, Reminder for Europe that the appointment will appear in your calendar at a different time than usual, since North America just did our time change over the weekend. Note that Dan can't make it this week @Arnaud POULIQUEN<mailto:arnaud.pouliquen@st.com>: You had suggested that we decide based on # of topics if we should cancel this week due to low volume. What do you think? Please let us know your agenda topics. Here is what I collected so far: * RPMsg IOCTL access without root permissions from Linux userspace<https://lists.openampproject.org/archives/list/openamp-system-reference@lis…> * Discussion on list between @Shah, Tanmay<mailto:tanmay.shah@amd.com>, @Arnaud POULIQUEN<mailto:arnaud.pouliquen@st.com> and @Hatle, Mark<mailto:mark.hatle@amd.com> * EU CRA: I think Dan was interested in being part of this discussion. Some useful resources: * FOSDEM 2026 "Why is the CRA worth a FOSS maintainer's attention?" recording<https://fosdem.org/2026/schedule/event/PFM7TL-panel_why_is_the_cra_worth_a_…> * FOSDEM 2026 "From Minimum Compliance to Meaningful Stewardship" recording<https://fosdem.org/2026/schedule/event/FEJGDD-panel_from_minimum_compliance…> * May 2025 Embedded Recipes talk by Greg KH<https://youtu.be/u44eMQpGlxA?si=JQgdirVeL1_pYU3O> * Bonus: This FOSDEM 2026 presenter did an amazing job at making Erlang's approach to CRA compliance entertaining<https://fosdem.org/2026/schedule/event/JFJV3R-story-of-the-erlang-journey-t…> * But probably the only takeaway for us is that they do have their reports go onto GitHub issues * Recent PRs * https://github.com/OpenAMP/openamp-system-reference/pulls * https://github.com/OpenAMP/openamp-system-reference/pull/94 * Tanmay believes existing doc is not enough, maybe can update the documentation * Tanmay to ping Arnaud when ready for him to review system reference PR94 * https://github.com/OpenAMP/openamp-demo/pulls * No open PRs * https://github.com/OpenAMP/openamp-docs/pulls * PR82 is still in draft state * https://github.com/OpenAMP/open-amp/pulls * Only stale PRs remain * https://github.com/OpenAMP/libmetal/pulls * Only stale PRs remain * Any Zephyr topics? * OpenAMP docs improvement project topics? * 2026 task tracker<https://docs.google.com/spreadsheets/d/1NyVPqvcSmPVu4SjRsFHboyLPdByWo38MIAD…> / individual updates Thanks & regards, Nathalie

8 months

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Calling for agenda: 2026-02-25 OpenAMP System Reference

by Chan King Choy, Nathalie

[Public] Hi all, Please let us know your agenda topics. Here is what I collected so far: * RPMsg IOCTL access without root permissions from Linux userspace<https://lists.openampproject.org/archives/list/openamp-system-reference@lis…> * Discussion on list between @Shah, Tanmay<mailto:tanmay.shah@amd.com>, @Arnaud POULIQUEN<mailto:arnaud.pouliquen@st.com> and @Hatle, Mark<mailto:mark.hatle@amd.com> * Recent PRs * https://github.com/OpenAMP/openamp-system-reference/pulls * https://github.com/OpenAMP/openamp-system-reference/pull/94 * Tanmay believes existing doc is not enough, maybe can update the documentation * Tanmay to ping Arnaud when ready for him to review system reference PR94 * https://github.com/OpenAMP/openamp-demo/pulls * No open PRs * https://github.com/OpenAMP/openamp-docs/pulls * PR82 is still in draft state * https://github.com/OpenAMP/open-amp/pulls * https://github.com/OpenAMP/open-amp/pull/676 * Arnaud approved. Need 1 more approver. * https://github.com/OpenAMP/libmetal/pulls * Only stale PRs remain * Any Zephyr topics? * OpenAMP docs improvement project topics? * 2026 task tracker<https://docs.google.com/spreadsheets/d/1NyVPqvcSmPVu4SjRsFHboyLPdByWo38MIAD…> / individual updates Thanks & regards, Nathalie

8 months, 2 weeks

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2026-02-11 OpenAMP System Reference Notes and Action items

by Chan King Choy, Nathalie

[Public] Hi all, Notes from the call are posted at: https://github.com/OpenAMP/openamp-system-reference/wiki/OpenAMP-System-Ref… Summary of action items: * Tanmay to look into the Linux kernel patch for -1 -> Linux allocate next endpoint & see if makes sense to try to upstream it * Nathalie: Put RPMsg IOCTL access topic on agenda for next meeting, since we have folks OOO, unless resolved on mailing list * Tanmay to ping Arnaud when ready for him to review system reference PR94 * Arnaud can create ticket for Sipke to work on making shell block change in other OpenAMP repos * Ed & Tanmay to review the outstanding docs PRs Please let us know if you spot any errors or important omissions. Thanks & regards, Nathalie

9 months

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RPMsg IOCTL access without root permissions from Linux userspace

by Shah, Tanmay

Hi all, I am working on remoteproc auto-boot feature. While working on this, I realized it should be possible to achieve RPMsg communication without root access given to the user. Existing demos doesn't support it, but I want to open discussion on how that can be achieved. One way discussed was, to use IOCTLS to create RPMSg devices, and I had open issue here: https://github.com/OpenAMP/openamp-system-reference/issues/50 I tried to modify echo_test[1] demo and use IOCTLS instead of accessing devices from sysfs directly, but that still need root access. My goal is to design following workflow for the RPMsg communication with the remote processor: 1. Linux device-tree has auto-boot property enabled. 2. During boot, driver parses auto-boot related properties, loads fw and boots rproc automatically (without user's involvement) 3. After boot, rproc firmware does name service announcement of RPMsg channels. 4. Linux creates RPMsg devices and ept based on above announcement. 5. Userspace apps uses RPMsg ioctls to create ept and rpmsg devices. 6. Userspace apps uses created devices for RPMsg communication with the remote processor. As per my testing, as of now step-5 and step-6 needs root access. Ideally userspace apps should be able to create/read/write/close rpmsg devices without root access (for security purposes). Is there any other way this problem is solved? I appreciate your input. Thank You, Tanmay References: [1] https://github.com/OpenAMP/openamp-system-reference/blob/main/examples/linu…

9 months

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