March 2021 - Rust-vmm - lists.opendev.org

interest in other Unixes?
by Allison Randal 31 Aug '23

31 Aug '23

Hi all, How interested would you be in patches for Unix family operating systems other than Linux? I'm working on a prototype lightweight VMM on the Illumos Kernel and Bhyve ioctl interface, and I'm planning to reuse rust-vmm libraries where I can. I prefer to work upstream on shared libraries, but I totally understand if the focus here is Linux, and patches for other Unix family operating systems are undesirable. As a concrete example of how non-disruptive this can be, the patch I'm debating whether to submit is a 4 line substitution in vmm-sys-util, which changes [#cfg(unix)] to [#cfg(linux)]. Right now, those lines are checking for target_family = "unix", but the code in question is actually unique to Linux, and fails to compile on other Unix family operating systems (mostly due to type errors, and using features that only exist on Linux), so it really should be checking target_os = "linux" instead. The specific changes are lines 8, 17, and 19, in src/lib.rs, which determine whether to use the code in the architecture-specific 'unix' directory, and whether to use the bitflags library (which is only used by the 'unix' directory). And, line 183 in src/errno.rs testing a very specific string message as the text for libc::EBADF, which has slightly different wording on other Unix family operating systems. That simple substitution makes it possible to use both vmm-sys-util and vm-memory on Illumos (since vm-memory was only using architecture-independent parts of vmm-sys-util for temp files in tests, and nothing in the 'unix' directory). I haven't started systematically testing other rust-vmm libraries for non-Linux compatibility yet, but I expect I'll find similar patterns. (Full disclosure: I personally prefer Linux Kernel and KVM, but this is paid work, and sparks enough intellectual curiosity for me to be willing to do it.) Thanks for any thoughts, Allison

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vPTG April 2021 Team Signup
by Kendall Nelson 23 Mar '21

23 Mar '21

Greetings! As you hopefully already know, our next PTG will be virtual again, and held from Monday, April 19 to Friday, April 23. We will have the same schedule set up available as last time with three windows of time spread across the day to cover all timezones with breaks in between. To signup your team, you must complete BOTH the survey[1] AND reserve time in the ethercalc[2] by March 25 at 7:00 UTC. We ask that the PTL/SIG Chair/Team lead sign up for time to have their discussions in with 4 rules/guidelines. 1. Cross project discussions (like SIGs or support project teams) should be scheduled towards the start of the week so that any discussions that might shape those of other teams happen first. 2. No team should sign up for more than 4 hours per UTC day to help keep participants actively engaged. 3. No team should sign up for more than 16 hours across all time slots to avoid burning out our contributors and to enable participation in multiple teams discussions. Again, you need to fill out BOTH the ethercalc AND the survey to complete your team's sign up. If you have any issues with signing up your team, due to conflict or otherwise, please let me know! While we are trying to empower you to make your own decisions as to when you meet and for how long (after all, you know your needs and teams timezones better than we do), we are here to help! Once your team is signed up, please register! And remind your team to register! Registration is free, but since it will be how we contact you with passwords, event details, etc. it is still important! Continue to check back for updates at openstack.org/ptg. -the Kendalls (diablo_rojo & wendallkaters) [1] Team Survey: https://openinfrafoundation.formstack.com/forms/april2021_vptg_survey [2] Ethercalc Signup: https://ethercalc.net/oz7q0gds9zfi [3] PTG Registration: https://april2021-ptg.eventbrite.com

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Hosting vhost-user servers in rust-vmm?
by Sergio Lopez 17 Mar '21

17 Mar '21

Hi, It's very likely that, along this year, we'll start seeing a number of new vhost-user device implementations based on rust-vmm crates. I think it'd be very valuable to have a centralized place to host those crates, so both final users and developers can easily find them, and I have the feeling that rust-vmm can be that place. Do you think rust-vmm is the right place for them? Would we need to update the Community docs to reflect the presence of such components? Thanks, Sergio.

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Re: [Rust-VMM] rust-vmm sync meeting
by Florescu, Andreea 09 Mar '21

09 Mar '21

Thanks everyone for joining! Here are the meeting minutes: * Logging: https://github.com/rust-vmm/vhost-user-backend/issues/4 * whats the idomatic way to do logging across the various crates? * typically people use the log crate and build on top of it: https://crates.io/crates/log * alternative proposal: hide all logging & metrics behind an interface that defines relevant events * example of usage: https://github.com/rust-vmm/vm-superio/blob/c9ecf106d4d8d38fdc8e91e254a7f78… * for now this is used only for metrics * CH is using a macro for events: https://github.com/cloud-hypervisor/cloud-hypervisor/blob/master/event_moni… * let's use this issue to continue the discussion: https://github.com/rust-vmm/community/issues/104 * for debugging & developing we can use the log crate * also an open question about metrics (what/where/how many/how filtered) * Public roadmap for 2021: * https://github.com/orgs/rust-vmm/projects/3 * Use label: "roadmap 2021" * Search for roadmap issues: https://github.com/search?q=org%3Arust-vmm+label%3A%22roadmap+2021%22&type=… * Branching policy for crates and release lifecycle management * we've been doing branch releases for security vulnerabilities * we do not have a policy for releases (how long do we support them)? * QEMU: * dev on master * before releases they're looking more into what gets into master (i.e. only bug fixes) * release branch * 3 release/year * CH: * release every 6 weeks * use dependabot * does not support older versions of CH (only support for latest version) * Proposal: * Handle releases on a case by case basis * Proposal for branches: branch when need to (i.e. breaking changes & security releases) * fandree@ add this to the community readme * master support? * only when there is a new change that is needed or when crates are not published * releases on demand to support different projects (release just a versioned tag on master, ad-hoc branch for security backports on a release tag) * obviously master tries to stay stable with CI keeping tests green - cost of a release should be small * kvm-bindings * CH tried to autogenerate new bindings, and it did not work * we need to add documentation (if it does not exist) on how to generate them * State of AArch64 support? * crate support should be complete: kvm-ioctls, linux-loader; used in production Firecracker & Cloud Hypervisor * removing dependency on libfdt options: * rust crate for generating the DT (only static FDT) * ACPI: there is a push to use it by default * adding support to vmm-reference for ARM: https://github.com/rust-vmm/vmm-reference/issues/90 * Support for other hypervisors (!KVM): * did not have time to discuss this; we'll discuss it at the next sync meeting ________________________________ From: Florescu, Andreea Sent: Wednesday, March 3, 2021 3:19 PM To: Barbu, Iulian; Loghin, Laura; Ochescu, Catalin; Horobeanu, Dan; Iordache, Alexandra; Agache, Alexandru; meet(a)chime.aws; pin+2352511775(a)chime.aws; rust-vmm(a)lists.opendev.org Cc: M. Dodson; Ceyhun Ertürk; Catangiu, Adrian Costin; Zach Reizner; Wise, Bob; Liguori, Anthony; Trilok Soni; Dylan Reid; luka.perkov(a)sartura.hr; Brendan Burns; Alex Bennée Subject: rust-vmm sync meeting When: Monday, March 8, 2021 11:00 AM-12:00 PM. Where: Meeting Agenda: https://etherpad.opendev.org/p/rust-vmm-sync-2021 ==============Conference Bridge Information============== You have been invited to an online meeting, powered by Amazon Chime. Chime meeting ID: 2352511775 Join via Chime clients (manually): Select 'Meetings > Join a Meeting', and enter 2352511775 Join via Chime clients (auto-call): If you invite auto-call as attendee, Chime will call you when the meeting starts, select 'Answer' Join via browser screen share: https://chime.aws/2352511775 Join via phone (US): +1-929-432-4463,,,2352511775#<tel:+1-929-432-4463,,,2352511775#> Join via phone (US toll-free): +1-855-552-4463,,,2352511775#<tel:+1-855-552-4463,,,2352511775#> International dial-in: https://chime.aws/dialinnumbers/ In-room video system: Ext: 62000, Meeting PIN: 2352511775# ================================================= ================Before your meeting:================ * Learn how to use the touch panel<https://it.amazon.com/en/help/articles/use-the-meeting-room-touch-panel>. * Prefer a video? Watch these touch panel how-to videos<https://broadcast.amazon.com/videos/98363>. * Find out more about room layouts<https://it.amazon.com/en/help/articles/conference-room-configurations>. * Get more information at it.amazon.com/meetings<https://it.amazon.com/en/servicecatalog/meetings>. ================================================ Created with Amazon Meetings<https://meetings.amazon.com> (fandree@, edit this series<https://meetings.amazon.com/#/meeting/new?entryID=Meetings-1614777141769-fa…>) Amazon Development Center (Romania) S.R.L. registered office: 27A Sf. Lazar Street, UBC5, floor 2, Iasi, Iasi County, 700045, Romania. Registered in Romania. Registration number J22/2621/2005.

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rust-vmm sync meeting
by Florescu, Andreea 08 Mar '21

08 Mar '21

Meeting Agenda: https://etherpad.opendev.org/p/rust-vmm-sync-2021 ==============Conference Bridge Information============== You have been invited to an online meeting, powered by Amazon Chime. Chime meeting ID: 6592165432 Join via Chime clients (manually): Select 'Meetings > Join a Meeting', and enter 6592165432 Join via Chime clients (auto-call): If you invite auto-call as attendee, Chime will call you when the meeting starts, select 'Answer' Join via browser screen share: https://chime.aws/6592165432 Join via phone (US): +1-929-432-4463,,,6592165432#<tel:+1-929-432-4463,,,6592165432#> Join via phone (US toll-free): +1-855-552-4463,,,6592165432#<tel:+1-855-552-4463,,,6592165432#> International dial-in: https://chime.aws/dialinnumbers/ In-room video system: Ext: 62000, Meeting PIN: 6592165432# ================================================= ================Before your meeting:================ * Learn how to use the touch panel<https://it.amazon.com/en/help/articles/use-the-meeting-room-touch-panel>. * Prefer a video? Watch these touch panel how-to videos<https://broadcast.amazon.com/videos/98363>. * Find out more about room layouts<https://it.amazon.com/en/help/articles/conference-room-configurations>. * Get more information at it.amazon.com/meetings<https://it.amazon.com/en/servicecatalog/meetings>. ================================================ Created with Amazon Meetings<https://meetings.amazon.com> (fandree@, edit this series<https://meetings.amazon.com/#/meeting/new?entryID=Meetings-1614777589627-fa…>) Amazon Development Center (Romania) S.R.L. registered office: 27A Sf. Lazar Street, UBC5, floor 2, Iasi, Iasi County, 700045, Romania. Registered in Romania. Registration number J22/2621/2005.

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rust-vmm sync meeting
by Florescu, Andreea 08 Mar '21

08 Mar '21

Meeting Agenda: https://etherpad.opendev.org/p/rust-vmm-sync-2021 ==============Conference Bridge Information============== You have been invited to an online meeting, powered by Amazon Chime. Chime meeting ID: 6592165432 Join via Chime clients (manually): Select 'Meetings > Join a Meeting', and enter 6592165432 Join via Chime clients (auto-call): If you invite auto-call as attendee, Chime will call you when the meeting starts, select 'Answer' Join via browser screen share: https://chime.aws/6592165432 Join via phone (US): +1-929-432-4463,,,6592165432#<tel:+1-929-432-4463,,,6592165432#> Join via phone (US toll-free): +1-855-552-4463,,,6592165432#<tel:+1-855-552-4463,,,6592165432#> International dial-in: https://chime.aws/dialinnumbers/ In-room video system: Ext: 62000, Meeting PIN: 6592165432# ================================================= ================Before your meeting:================ * Learn how to use the touch panel<https://it.amazon.com/en/help/articles/use-the-meeting-room-touch-panel>. * Prefer a video? Watch these touch panel how-to videos<https://broadcast.amazon.com/videos/98363>. * Find out more about room layouts<https://it.amazon.com/en/help/articles/conference-room-configurations>. * Get more information at it.amazon.com/meetings<https://it.amazon.com/en/servicecatalog/meetings>. ================================================ Created with Amazon Meetings<https://meetings.amazon.com> (fandree@, edit this series<https://meetings.amazon.com/#/meeting/new?entryID=Meetings-1614777589627-fa…>) Amazon Development Center (Romania) S.R.L. registered office: 27A Sf. Lazar Street, UBC5, floor 2, Iasi, Iasi County, 700045, Romania. Registered in Romania. Registration number J22/2621/2005.

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[Action Required] rust-vmm sync meetings
by Florescu, Andreea 03 Mar '21

03 Mar '21

Hey folks, In the last week sync meeting we discussed about recreating the bi-weekly rust-vmm sync meeting. I created a poll to see when most people can join: https://doodle.com/poll/nrrsivwytgc5zy9n?utm_source=poll&utm_medium=link ? The poll will close on 2021-03-01 so please choose your preferred hour by then. I'll schedule recurring meetings (every 2 weeks, on Monday) starting with ?2021-03-08. Thanks, Andreea Amazon Development Center (Romania) S.R.L. registered office: 27A Sf. Lazar Street, UBC5, floor 2, Iasi, Iasi County, 700045, Romania. Registered in Romania. Registration number J22/2621/2005.

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rust-vmm sync meeting
by Florescu, Andreea 03 Mar '21

03 Mar '21

Meeting Agenda: https://etherpad.opendev.org/p/rust-vmm-sync-2021 ==============Conference Bridge Information============== You have been invited to an online meeting, powered by Amazon Chime. Chime meeting ID: 6592165432 Join via Chime clients (manually): Select 'Meetings > Join a Meeting', and enter 6592165432 Join via Chime clients (auto-call): If you invite auto-call as attendee, Chime will call you when the meeting starts, select 'Answer' Join via browser screen share: https://chime.aws/6592165432 Join via phone (US): +1-929-432-4463,,,6592165432#<tel:+1-929-432-4463,,,6592165432#> Join via phone (US toll-free): +1-855-552-4463,,,6592165432#<tel:+1-855-552-4463,,,6592165432#> International dial-in: https://chime.aws/dialinnumbers/ In-room video system: Ext: 62000, Meeting PIN: 6592165432# ================================================= ================Before your meeting:================ * Learn how to use the touch panel<https://it.amazon.com/en/help/articles/use-the-meeting-room-touch-panel>. * Prefer a video? Watch these touch panel how-to videos<https://broadcast.amazon.com/videos/98363>. * Find out more about room layouts<https://it.amazon.com/en/help/articles/conference-room-configurations>. * Get more information at it.amazon.com/meetings<https://it.amazon.com/en/servicecatalog/meetings>. ================================================ Created with Amazon Meetings<https://meetings.amazon.com> (fandree@, edit this series<https://meetings.amazon.com/#/meeting/new?entryID=Meetings-1614777589627-fa…>) Amazon Development Center (Romania) S.R.L. registered office: 27A Sf. Lazar Street, UBC5, floor 2, Iasi, Iasi County, 700045, Romania. Registered in Romania. Registration number J22/2621/2005.

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rust-vmm sync meeting
by Florescu, Andreea 03 Mar '21

03 Mar '21

Meeting Agenda: https://etherpad.opendev.org/p/rust-vmm-sync-2021 ==============Conference Bridge Information============== You have been invited to an online meeting, powered by Amazon Chime. Chime meeting ID: 2352511775 Join via Chime clients (manually): Select 'Meetings > Join a Meeting', and enter 2352511775 Join via Chime clients (auto-call): If you invite auto-call as attendee, Chime will call you when the meeting starts, select 'Answer' Join via browser screen share: https://chime.aws/2352511775 Join via phone (US): +1-929-432-4463,,,2352511775#<tel:+1-929-432-4463,,,2352511775#> Join via phone (US toll-free): +1-855-552-4463,,,2352511775#<tel:+1-855-552-4463,,,2352511775#> International dial-in: https://chime.aws/dialinnumbers/ In-room video system: Ext: 62000, Meeting PIN: 2352511775# ================================================= ================Before your meeting:================ * Learn how to use the touch panel<https://it.amazon.com/en/help/articles/use-the-meeting-room-touch-panel>. * Prefer a video? Watch these touch panel how-to videos<https://broadcast.amazon.com/videos/98363>. * Find out more about room layouts<https://it.amazon.com/en/help/articles/conference-room-configurations>. * Get more information at it.amazon.com/meetings<https://it.amazon.com/en/servicecatalog/meetings>. ================================================ Created with Amazon Meetings<https://meetings.amazon.com> (fandree@, edit this series<https://meetings.amazon.com/#/meeting/new?entryID=Meetings-1614777141769-fa…>) Amazon Development Center (Romania) S.R.L. registered office: 27A Sf. Lazar Street, UBC5, floor 2, Iasi, Iasi County, 700045, Romania. Registered in Romania. Registration number J22/2621/2005.

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April 2021 PTG Dates & Registration
by Kendall Waters 01 Mar '21

01 Mar '21

Hello Everyone! I'm sure you all have been anxiously awaiting the announcement of the dates for the next virtual PTG[1]! The PTG will take place April 19-23, 2021! PTG registration is now open[2]. Like last time, it is free, but we will again be using it to communicate details about the event (schedules, passwords, etc), so please take two minutes to register! Early next week we will send out info to mailing lists about signing up teams. Also, the same as last time, we will have an ethercalc signup and a survey to gather some other data about your team. Can't wait to see you all there! -the Kendalls (diablo_rojo & wendallkaters) [1] https://www.openstack.org/ptg/ <https://www.openstack.org/ptg/> [2] https://april2021-ptg.eventbrite.com <https://april2021-ptg.eventbrite.com/>

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