That’s a wrap! Thanks everyone for Linux Plumbers 2022

Thank you to everyone that attended Linux Plumbers 2022 both in person or virtually. After two years of being 100% virtual due to the pandemic, we were able to have a very successful hybrid conference, with 418 people registering in-person where 401 attended (96%), and 361 registered virtually and 320 who actually participated online (89%), not counting all those that used the free YouTube service. After two years of being 100% remote, we decided to keep this year’s in-person count lower than normal due to the unknowns caused by the pandemic. To compensate for the smaller venue, we tried something new, and created a virtual attendance as well. We took a different approach than other hybrid conferences, and treated this one as a virtual event with an in-person component, where the in room attendees were simply participants of the virtual event. This required all presentations to be uploaded to Big Blue Button, and the presenters presented through the virtual platform even though they were doing so on stage. This allowed the virtual attendees to be treated as first class citizens of the conference. Although we found this format a success, it wasn’t without technical difficulties, like problems with having no sound in the beginning of the first day, but that’s expected when attempting to do something for the first time. Overall, we found it to be a better experience and will continue to do so in future conferences.

We had a total of 18 microconferences (where patches are already going out on the mailing lists that are results of discussions that happened there), 16 Refereed talks, 8 Kernel Summit talks, 29 Networking and BPF Summit track talks, and 9 Toolchain track talks. There were also 17 birds-of-a-feather talks, where several were added at the last minute to solve issues that have just arrived. Most of these presentations can still be seen on video.

Stay tune for the feedback report of our attendees.

Next year Linux Plumbers will take place in North America (but not necessarily in the United States). We are still locking down on locations. As it is custom for Linux Plumbers to change chairs every year, next year will be chaired by Christian Brauner. It seems we like to have the chair live in another continent than where the conference takes place. We are hoping to find a venue that can hold at least 600 people, where we will be able to increase the number of in-person attendees.

Finally, I want to thank all those that were involved in making Linux Plumbers the best technical conference there is. This would not have happened without the hard work from the planning committee (Alice Ferrazzi, Christian Brauner, David Woodhouse, Guy Lunardi, James Bottomley, Kate Stewart, Mike Rapoport, and Paul E. McKenney), the runners of the Networking and BPF Summit track, the Toolchain track, Kernel Summit, and those that put together the very productive microconferences. I would also like to thank all those that presented as well as those who attended both in-person and virtually. I want to thank our sponsors for their continued support, and hope that this year’s conference was well worth it for them. I want to give special thanks to the Linux Foundation and their staff, who went above and beyond to make this conference run smoothly. They do a lot of work behind the scenes and the planning committee greatly appreciates it.

Before signing off from 2022, I would like to ask if anyone would be interested in volunteering with helping out at next year’s conference? We are especially looking for those that could help on a technical level, as we found running a virtual component along with a live event requires a bit more people than what we currently have. If you are interested, please send an email to contact@linuxplumbersconf.org.

Sincerely,

Steven Rostedt
Linux Plumbers 2022 Conference chair

Linux Plumbers Conference Free Live Streams Available

As with previous years, we have a free live stream available.  You can find the details here:

https://lpc.events/event/16/page/173-watch-live-free

LPC 2022 Open for Last-Minute On-Site Registrations

Against all expectations, we have now worked through the entire waitlist, courtesy of some last-minute cancellations due to late-breaking corporate travel restrictions. We are therefore re-opening general registration. So if you can somehow arrange to be in Dublin on September 12-14 at this late date, please register.

Virtual registration never has closed, and is still open.

Either way, we look forward to seeing you there!

LPC 2022 Evening Events Announcement

Linux Plumbers Conference 2022 will have evening events on Monday September 12 from 19:30 to 22:30 and on Wednesday September 14, again from 19:30 to 22:30. Tuesday is on your own, and we anticipate that a fair number of the people registered both for LPC and OSS EU might choose to attend their evening event on that day. Looking forward to seeing you all in Dublin the week after this coming one!

LPC 2022 Schedule is posted!

 

The schedule for when the miniconferences and tracks are going to occur is now posted at: https://lpc.events/event/16/timetable/#all

The runners for the miniconferences will be adding more details to each of their schedules over the coming weeks.

The Linux Plumbers Refereed track schedule and Kernel Summit schedule is now available at: https://lpc.events/event/16/timetable/#all.detailed

The leads for the networking and toolchain tracks will be adding more details to each of their schedules over the coming weeks, as well.

For those that are registered as in person, you are free to continue to submit Birds of a Feather(BOF) sessions. They will be allocated space in the BOF rooms on a first come, first serve basis. Please note that the BOFs will not be recorded.

We’re looking forward to a great 3 days of presentations and discussions. We hope you can join us either in-person or virtually!

Microconferences at Linux Plumbers Conference: Rust

Linux Plumbers Conference 2022 is pleased to host the Rust MC

Rust is a systems programming language that is making great strides in becoming the next big one in the domain.

Rust for Linux aims to bring it into the kernel since it has a key property that makes it very interesting to consider as the second language in the kernel: it guarantees no undefined behavior takes place (as long as unsafe code is sound). This includes no use-after-free mistakes, no double frees, no data races, etc.

This microconference intends to cover talks and discussions on both Rust for Linux as well as other non-kernel Rust topics.

Possible Rust for Linux topics:

  • Bringing Rust into the kernel (e.g. status update, next steps…).
  • Use cases for Rust around the kernel (e.g. drivers, subsystems…).
  • Integration with kernel systems and infrastructure (e.g. wrapping existing subsystems safely, build system, documentation, testing, maintenance…).

Possible Rust topics:

  • Language and standard library (e.g. upcoming features, memory model…).
  • Compilers and codegen (e.g. rustc improvements, LLVM and Rust, rustc_codegen_gcc, gccrs…).
  • Other tooling and new ideas (Cargo, Miri, Clippy, Compiler Explorer, Coccinelle for Rust…).
  • Educational material.
  • Any other Rust topic within the Linux ecosystem.

Please come and join us in the discussion about Rust in the Linux ecosystem.

We hope to see you there!

Microconferences at Linux Plumbers Conference: Power Management and Thermal Control

Linux Plumbers Conference 2022 is pleased to host the Power Management and Thermal Control Microconference

The Power Management and Thermal Control microconference focuses on frameworks related to power management and thermal control, CPU and device power-management mechanisms, and thermal-control methods. In particular, we are interested in extending the energy-efficient scheduling concept beyond the energy-aware scheduling (EAS), improving the thermal control framework in the kernel to cover more use cases and making system-wide suspend (and power management in general) more robust.

The goal is to facilitate cross-framework and cross-platform discussions that can help improve energy-awareness and thermal control in Linux.

Suggested topics:

  • Energy-efficient scheduling beyond EAS
  • Per-CPU idle injection from user space for thermal control
  • A generic energy model description
  • Extending the DTPM framework by adding more supported devices to it
  • Thermal control core code improvements
  • Combining DTPM with the thermal control framework
  • Generic DVFS support for SCMI-based platforms
  • Improving the genpd governor for CPUs
  • More integration between PM-runtime and system-wide PM

Please come and join us in the discussion about keeping your systems cool.

We hope to see you there!

Microconferences at Linux Plumbers Conference: System Boot and Security

Linux Plumbers Conference 2022 is pleased to host the System Boot and Security Microconference

In the fourth year in a row, System Boot and Security microconference is are going to bring together people interested in the firmware, bootloaders, system boot, security, etc., and discuss all these topics. This year we would particularly like to focus on better communication and closer cooperation between different Free Software and Open Source projects. In the past we have seen that the lack of cooperation’s between projects very often delays introduction of very interesting and important features with TrenchBoot being very prominent example.

The System Boot and Security MC is very important to improve such communication and cooperation, but it is not limited to this kind of problems. We would like to encourage all stakeholders to bring and discuss issues that they encounter in the broad sense of system boot and security.

Expected topics:

  • TPMs, HSMs, secure elements
  • Roots of Trust: SRTM and DRTM
  • Intel TXT, SGX, TDX
  • AMD SKINIT, SEV
  • ARM DRTM
  • Growing Attestation ecosystem,
  • IMA
  • TrenchBoot, tboot
  • UEFI, coreboot, U-Boot, LinuxBoot, hostboot
  • Measured Boot, Verified Boot, UEFI Secure Boot, UEFI Secure Boot Advanced Targeting (SBAT)
  • shim
  • boot loaders: GRUB2, SeaBIOS, network boot, PXE, iPXE,
  • u-root
  • OpenBMC, u-bmc
  • legal, organizational and other similar issues relevant for people interested in system boot and security.

Please come and join us in the discussion about how to keep your system secure from the very boot.

We hope to see you there!

Microconferences at Linux Plumbers Conference: VFIO/IOMMU/PCI

Linux Plumbers Conference 2022 is pleased to host the VFIO/IOMMU/PCI Microconference

The PCI interconnect specification, the devices that implement it, and the system IOMMUs that provide memory and access control to them are nowadays a de-facto standard for connecting high-speed components, incorporating more and more features such as:

  • Address Translation Service (ATS)/Page Request Interface (PRI)
  • Single-root I/O Virtualization (SR-IOV)/Process Address Space ID (PASID)
  • Shared Virtual Addressing (SVA)
  • Remote Direct Memory Access (RDMA)
  • Peer-to-Peer DMA (P2PDMA)
  • Cache Coherent Interconnect for Accelerators (CCIX)
  • Compute Express Link (CXL)
  • Data Object Exchange (DOE)
  • Component Measurement and Authentication (CMA)
  • Integrity and Data Encryption (IDE)
  • Security Protocol and Data Model (SPDM)
  • Gen-Z

These features are aimed at high-performance systems, server and desktop computing, embedded and SoC platforms, virtualization, and ubiquitous IoT devices.

The kernel code that enables these new system features focuses on coordination between the PCI devices, the IOMMUs they are connected to and the VFIO layer used to manage them (for userspace access and device passthrough) with related kernel interfaces and userspace APIs to be designed in-sync and in a clean way for all three sub-systems.

The VFIO/IOMMU/PCI micro-conference focuses on the kernel code that enables these new system features that often require coordination between the VFIO, IOMMU and PCI sub-systems.

Tentative topics include (but not limited to):

  • PCI
    • Cache Coherent Interconnect for Accelerators (CCIX)/Compute Express Link (CXL) expansion memory and accelerators management
    • Data Object Exchange (DOE)
    • Integrity and Data Encryption (IDE)
    • Component Measurement and Authentication (CMA)
    • Security Protocol and Data Model (SPDM)
    • I/O Address Space ID Allocator (IOASID)
    • INTX/MSI IRQ domain consolidation
    • Gen-Z interconnect fabric
    • ARM64 architecture and hardware
    • PCI native host controllers/endpoints drivers current challenges and improvements (e.g., state of PCI quirks, etc.)
    • PCI error handling and management e.g., Advanced Error Reporting (AER), Downstream Port Containment (DPC), ACPI Platform Error Interface (APEI) and Error Disconnect Recover (EDR)
    • Power management and devices supporting Active-state Power Management (ASPM)
    • Peer-to-Peer DMA (P2PDMA)
    • Resources claiming/assignment consolidation
    • Probing of native PCIe controllers and general reset implementation
    • Prefetchable vs non-prefetchable BAR address mappings
    • Untrusted/external devices management
    • DMA ownership models
    • Thunderbolt, DMA, RDMA and USB4 security
  • VFIO
    • Write-combine on non-x86 architectures
    • I/O Page Fault (IOPF) for passthrough devices
    • Shared Virtual Addressing (SVA) interface
    • Single-root I/O Virtualization(SRIOV)/Process Address Space ID (PASID) integration
    • PASID in SRIOV virtual functions
    • Device assignment/sub-assignment
  • IOMMU
    • /dev/iommufd development
    • IOMMU virtualization
    • IOMMU drivers SVA interface
    • DMA-API layer interactions and the move towards generic dma-ops for IOMMU drivers
    • Possible IOMMU core changes (e.g., better integration with device-driver core, etc.)

Come and join us in the discussion in helping Linux keep up with the new features being added to the PCI interconnect specification.

We hope to see you there !

Microconferences at Linux Plumbers Conference: Android

Linux Plumbers Conference 2022 is pleased to host the Android Microconference

Continuing in the same direction as last year, this year’s Android microconference will be an opportunity to foster collaboration between the Android and Linux kernel communities. Discussions will be centered on the goal of ensuring that both the Android and Linux development moves in a lockstep fashion going forward.

Projected topics:

  • io_uring in Android
  • MGLRU results on Android
  • Hermetic builds with Bazel
  • Android kernel testing updates
  • pKVM
  • erofs as a replacement for f2fs and the deprecation of ext4
  • eBPF-based FUSE
  • stgdiff tools
  • Technical debt
  • Parallelized suspend/resume
  • CPU DVFS for guest thread migrations

Please come and join us in the discussion of making Android a better partner with Linux.

We hope to see you there!

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