August 2020 - Stratos-dev - op-lists.linaro.org

FM radio abstraction in Android / Virtio

by François Ozog

Hi Tom Is there an existing abstraction of an FM radio in Àdroid ? Or a combination of devices / interfaces ? The background question is : can fm radio be abstracted easily in Virtio ? Cheers FF -- François-Frédéric Ozog | *Director Linaro Edge & Fog Computing Group* T: +33.67221.6485 francois.ozog(a)linaro.org | Skype: ffozog

5 years

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Re: [Stratos-dev] Project Stratos deliverables and STR-9

by François Ozog

On Wed, 12 Aug 2020 at 00:44, Stefano Stabellini via Stratos-dev <stratos-dev(a)op-lists.linaro.org> wrote: > > Hi all, > > I am writing this email in regards to Project Stratos following up on > Mike's suggestion to clarify the deliverables. > > Project Stratos has three main deliverables: > > 1) type-1 hypervisor boot orchestration > 2) VMM with safety island and Trust Zone components > 3) refactored, optimized virtio > > > We had a few discussions on the topics and I think we are all on the > same page, but I thought it would be good to expand a bit on them and > also get in your feedback on 3). > > > 1) corresponds to STR-10. In the short term it means adding system > device tree support for static hypervisors with a reference implementation > in Xen. It involves adding support for virtual machines to the system > device tree specification, and implement the specification in Xen. > > 2) corresponds to STR-11. The current wording is a bit confusing. We > haven't settled on whether it should be based on Zephyr or based on > Rust. I don't have a strong opinion either way but I have a preference > for Zephyr. In any case, 2) is about having a non-Linux dom0 environment > that can boot on the Cortex-As or out-of-cluster on the Cortex-Rs/Ms (to > monitor VMs running on the Cortex-As.) I am not sure there is an "exclusive or" between Zephyr and Rust. I think we can think of VMMs as: - Rust unikernel running in a cortex A partition - Zephyr app - Rust Zephyr app on Cortex M Are those possible targets ? I also think that the Zephyr App is the most interesting step at present. > > 3) is about addressing some of virtio's limitations particularly evident > with type-1 hypervisors. In the short term it means getting Virtio to > run well with a type-1, Xen being the reference. In particular, this > deliverable is expected to enable virtio backends to run well in an > unprivileged virtual machine environment. (Today, the virtio backends > have to run in an environment with privileges over the entire system.) > > > 3) is supposed to correspond to STR-9, but actually I don't think > STR-9's description matches the virtio deliverable that we have under > Stratos. It looks like STR-9 comes from LBI-24, not from LBI-40. > > If my understanding is correct, should we create a new STR Jira ticket > to cover 3)? > > > Cheers, > > Stefano > -- > Stratos-dev mailing list > Stratos-dev(a)op-lists.linaro.org > https://op-lists.linaro.org/mailman/listinfo/stratos-dev -- François-Frédéric Ozog | Director Linaro Edge & Fog Computing Group T: +33.67221.6485 francois.ozog(a)linaro.org | Skype: ffozog

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Project Stratos Sync

by Mike Holmes

All Alex and I will be ou fo rthis call. I am sure Linaro can still host the call if we think there is value to getting together and I will organise that, please let me know. Mike Title: Project Stratos Sync Discuss the latest Project Stratos devlopments.Mailing listhttps://op-lists.linaro.org/mailman/listinfo/stratos-devAgenda - feel free to suggest items on the mailing listhttps://collaborate.linaro.org/display/STR/Meeting+notesPrevious AgendaVirtualization infrastructure enhancements Agenda When: Thu 20 Aug 2020 4pm – 5:05pm United Kingdom Time Joining info: Join with Google Meet https://meet.google.com/uak-yrcj-tyd Join by phone (GB) +44 20 3956 3214 (PIN: 706606273) More phone numbers: https://tel.meet/uak-yrcj-tyd?pin=4387074781142&hs=0 Who: * Mike Holmes- organiser * souvik.chakravarty(a)arm.com * Joakim Bech * Anmar Oueja * sreemeno(a)qti.qualcomm.com * Tom Gall * pratikp(a)quicinc.com * Sumit Semwal * David Brazdil * François Ozog * ilias.apalodimas(a)linaro.org * Bill Fletcher * svaddagi(a)qti.qualcomm.com * David Rusling * Don Harbin * shashi.mallela(a)linaro.org * atouzni(a)qti.qualcomm.com * randy.linnell(a)linaro.org * Sandeep Patil * matt.spencer(a)arm.com * ruchika.gupta(a)linaro.org * victor.duan(a)linaro.org * adelva(a)google.com * Mathieu Poirier * Alex Bennée * Mark Orvek * bogdan.costinescu(a)nxp.com * tsoni(a)quicinc.com * srinivas.kalaga(a)huawei.com * bogdan.vlad(a)nxp.com * peng.fan(a)nxp.com * stratos-dev(a)op-lists.linaro.org * ed.doxat(a)arm.com

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Project Stratos deliverables and STR-9

by Stefano Stabellini

Hi all, I am writing this email in regards to Project Stratos following up on Mike's suggestion to clarify the deliverables. Project Stratos has three main deliverables: 1) type-1 hypervisor boot orchestration 2) VMM with safety island and Trust Zone components 3) refactored, optimized virtio We had a few discussions on the topics and I think we are all on the same page, but I thought it would be good to expand a bit on them and also get in your feedback on 3). 1) corresponds to STR-10. In the short term it means adding system device tree support for static hypervisors with a reference implementation in Xen. It involves adding support for virtual machines to the system device tree specification, and implement the specification in Xen. 2) corresponds to STR-11. The current wording is a bit confusing. We haven't settled on whether it should be based on Zephyr or based on Rust. I don't have a strong opinion either way but I have a preference for Zephyr. In any case, 2) is about having a non-Linux dom0 environment that can boot on the Cortex-As or out-of-cluster on the Cortex-Rs/Ms (to monitor VMs running on the Cortex-As.) 3) is about addressing some of virtio's limitations particularly evident with type-1 hypervisors. In the short term it means getting Virtio to run well with a type-1, Xen being the reference. In particular, this deliverable is expected to enable virtio backends to run well in an unprivileged virtual machine environment. (Today, the virtio backends have to run in an environment with privileges over the entire system.) 3) is supposed to correspond to STR-9, but actually I don't think STR-9's description matches the virtio deliverable that we have under Stratos. It looks like STR-9 comes from LBI-24, not from LBI-40. If my understanding is correct, should we create a new STR Jira ticket to cover 3)? Cheers, Stefano

5 years, 1 month

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Interesting QEMU thread on Rust

by Alex Bennée

Hi, People on this list might be interested on a thread currently being discussed on qemu-devel: From: Stefan Hajnoczi <stefanha(a)gmail.com> Date: Thu, 6 Aug 2020 11:24:13 +0100 Message-ID: <CAJSP0QWF8g7r5VqU_PRbskWZU3ahCq+eobR8GexUcPrAiYoCPQ(a)mail.gmail.com> Subject: Why QEMU should move from C to Rust (clickbait alert ;)) Or via: https://lists.gnu.org/archive/html/qemu-devel/2020-08/msg00800.html One of the interesting parts of the discussion was the idea of writing more device emulation in Rust. This is an idea that has been talked about before but Stefan did point me towards: https://github.com/slp/qsd which is a vhost-user storage daemon written in Rust. It uses a couple of support libraries: https://github.com/slp/vhostuser_rs https://github.com/slp/vhost-user-blk There is discussion about if the QEMU project should host these in a separate repository (so not attached to the main qemu code base) but as a reference source of vhost-user daemons. I'm going to have a play and see if they build on standard distro Rusts and how quickly I can parity match my rpmb daemon. -- Alex Bennée

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Updated invitation with note: Project Stratos Sync @ Thu 20 Aug 2020 4pm - 5:05pm (BST) (stratos-dev@op-lists.linaro.org)

by Mike Holmes

This event has been changed with this note: "A Stratos Collaborate page has been created to gather realated documents and meeting notes" Title: Project Stratos Sync Discuss the latest Project Stratos devlopments.Mailing listhttps://op-lists.linaro.org/mailman/listinfo/stratos-devAgenda - feel free to suggest items on the mailing listhttps://collaborate.linaro.org/display/STR/Meeting+notesPrevious AgendaVirtualization infrastructure enhancements Agenda (changed) When: Thu 20 Aug 2020 4pm – 5:05pm United Kingdom Time Joining info: Join with Google Meet https://meet.google.com/uak-yrcj-tyd Join by phone (GB) +44 20 3956 3214 (PIN: 706606273) More phone numbers: https://tel.meet/uak-yrcj-tyd?pin=4387074781142&hs=0 Calendar: stratos-dev(a)op-lists.linaro.org Who: * Mike Holmes- organiser * souvik.chakravarty(a)arm.com * Joakim Bech * Anmar Oueja * sreemeno(a)qti.qualcomm.com * Tom Gall * pratikp(a)quicinc.com * Sumit Semwal * David Brazdil * François Ozog * ilias.apalodimas(a)linaro.org * Bill Fletcher * svaddagi(a)qti.qualcomm.com * David Rusling * Don Harbin * shashi.mallela(a)linaro.org * atouzni(a)qti.qualcomm.com * randy.linnell(a)linaro.org * Sandeep Patil * matt.spencer(a)arm.com * ruchika.gupta(a)linaro.org * victor.duan(a)linaro.org * adelva(a)google.com * Mathieu Poirier * Alex Bennée * bogdan.costinescu(a)nxp.com * tsoni(a)quicinc.com * srinivas.kalaga(a)huawei.com * bogdan.vlad(a)nxp.com * peng.fan(a)nxp.com * stratos-dev(a)op-lists.linaro.org Event details: https://www.google.com/calendar/event?action=VIEW&eid=NXZzczhsdjNkbTVsMWdoY… Invitation from Google Calendar: https://www.google.com/calendar/ You are receiving this courtesy email at the account stratos-dev(a)op-lists.linaro.org because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively, you can sign up for a Google Account at https://www.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organiser and be added to the guest list, invite others regardless of their own invitation status or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

5 years, 1 month

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Updated invitation with note: Project Stratos Sync @ Every 2 weeks from 4pm to 5:05pm on Thursday (BST) (stratos-dev@op-lists.linaro.org)

by Mike Holmes

This event has been changed with this note: "A Stratos Collaborate page has been created to gather realated documents and meeting notes" Title: Project Stratos Sync Discuss the latest Project Stratos devlopments.Mailing listhttps://op-lists.linaro.org/mailman/listinfo/stratos-devAgenda - feel free to suggest items on the mailing listhttps://collaborate.linaro.org/display/STR/Meeting+notesPrevious AgendaVirtualization infrastructure enhancements Agenda (changed) When: Every 2 weeks from 4pm to 5:05pm on Thursday United Kingdom Time Joining info: Join with Google Meet https://meet.google.com/uak-yrcj-tyd Join by phone (GB) +44 20 3956 3214 (PIN: 706606273) More phone numbers: https://tel.meet/uak-yrcj-tyd?pin=4387074781142&hs=0 Calendar: stratos-dev(a)op-lists.linaro.org Who: * Mike Holmes- organiser * souvik.chakravarty(a)arm.com * Joakim Bech * bogdan.costinescu(a)nxp.com * Anmar Oueja * sreemeno(a)qti.qualcomm.com * tsoni(a)quicinc.com * Tom Gall * pratikp(a)quicinc.com * Sumit Semwal * David Brazdil * François Ozog * ilias.apalodimas(a)linaro.org * Bill Fletcher * svaddagi(a)qti.qualcomm.com * srinivas.kalaga(a)huawei.com * David Rusling * Don Harbin * shashi.mallela(a)linaro.org * atouzni(a)qti.qualcomm.com * randy.linnell(a)linaro.org * Sandeep Patil * matt.spencer(a)arm.com * ruchika.gupta(a)linaro.org * victor.duan(a)linaro.org * bogdan.vlad(a)nxp.com * adelva(a)google.com * peng.fan(a)nxp.com * stratos-dev(a)op-lists.linaro.org * Mathieu Poirier * Alex Bennée Event details: https://www.google.com/calendar/event?action=VIEW&eid=NXZzczhsdjNkbTVsMWdoY… Invitation from Google Calendar: https://www.google.com/calendar/ You are receiving this courtesy email at the account stratos-dev(a)op-lists.linaro.org because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively, you can sign up for a Google Account at https://www.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organiser and be added to the guest list, invite others regardless of their own invitation status or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

5 years, 1 month

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Updated invitation with note: Project Stratos Sync @ Thu 6 Aug 2020 4pm - 5:05pm (BST) (stratos-dev@op-lists.linaro.org)

by Mike Holmes

This event has been changed with this note: "A Stratos Collaborate page has been created to gather realated documents and meeting notes" Title: Project Stratos Sync Discuss the latest Project Stratos devlopments.Mailing listhttps://op-lists.linaro.org/mailman/listinfo/stratos-devAgenda - feel free to suggest items on the mailing listhttps://collaborate.linaro.org/display/STR/Meeting+notesPrevious AgendaVirtualization infrastructure enhancements Agenda (changed) When: Thu 6 Aug 2020 4pm – 5:05pm United Kingdom Time Joining info: Join with Google Meet https://meet.google.com/uak-yrcj-tyd Join by phone (GB) +44 20 3956 3214 (PIN: 706606273) More phone numbers: https://tel.meet/uak-yrcj-tyd?pin=4387074781142&hs=0 Calendar: stratos-dev(a)op-lists.linaro.org Who: * Mike Holmes- organiser * souvik.chakravarty(a)arm.com * Joakim Bech * Anmar Oueja * sreemeno(a)qti.qualcomm.com * Tom Gall * pratikp(a)quicinc.com * Sumit Semwal * David Brazdil * François Ozog * ilias.apalodimas(a)linaro.org * Bill Fletcher * svaddagi(a)qti.qualcomm.com * David Rusling * Don Harbin * shashi.mallela(a)linaro.org * atouzni(a)qti.qualcomm.com * randy.linnell(a)linaro.org * Sandeep Patil * matt.spencer(a)arm.com * ruchika.gupta(a)linaro.org * victor.duan(a)linaro.org * adelva(a)google.com * Mathieu Poirier * Alex Bennée * bogdan.costinescu(a)nxp.com * tsoni(a)quicinc.com * srinivas.kalaga(a)huawei.com * bogdan.vlad(a)nxp.com * peng.fan(a)nxp.com * stratos-dev(a)op-lists.linaro.org Event details: https://www.google.com/calendar/event?action=VIEW&eid=NXZzczhsdjNkbTVsMWdoY… Invitation from Google Calendar: https://www.google.com/calendar/ You are receiving this courtesy email at the account stratos-dev(a)op-lists.linaro.org because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively, you can sign up for a Google Account at https://www.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organiser and be added to the guest list, invite others regardless of their own invitation status or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

5 years, 1 month

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Project Stratos Sync

by Mike Holmes

Hi All Do we have any technical topics for this weeks general call ? Mike Title: Project Stratos Sync Discuss the latest Project Stratos devlopments. When: Thu 6 Aug 2020 4pm – 5:05pm United Kingdom Time Joining info: Join with Google Meet https://meet.google.com/uak-yrcj-tyd Join by phone (GB) +44 20 3956 3214 (PIN: 706606273) More phone numbers: https://tel.meet/uak-yrcj-tyd?pin=4387074781142&hs=0 Who: * Mike Holmes- organiser * souvik.chakravarty(a)arm.com * Joakim Bech * Anmar Oueja * sreemeno(a)qti.qualcomm.com * Tom Gall * pratikp(a)quicinc.com * Sumit Semwal * David Brazdil * François Ozog * ilias.apalodimas(a)linaro.org * Bill Fletcher * svaddagi(a)qti.qualcomm.com * David Rusling * Don Harbin * shashi.mallela(a)linaro.org * atouzni(a)qti.qualcomm.com * randy.linnell(a)linaro.org * Sandeep Patil * matt.spencer(a)arm.com * ruchika.gupta(a)linaro.org * victor.duan(a)linaro.org * adelva(a)google.com * Mathieu Poirier * bogdan.costinescu(a)nxp.com * tsoni(a)quicinc.com * srinivas.kalaga(a)huawei.com * bogdan.vlad(a)nxp.com * peng.fan(a)nxp.com * stratos-dev(a)op-lists.linaro.org Attachments: * Virtualization infrastructure enhancements Agenda - https://docs.google.com/document/d/1R4nlRrMvZzmvTFWvL-lobJr6J3TGNxBBlar_Ls7…

5 years, 1 month

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Stratos-dev August 2020