2025-12-04 Linaro Data Center Group steering committee Meeting Agenda/Minutes

When? 4th Thursday of each month.

Zoom connection details

• Meeting ID: 938 5333 7073

• Computer: https://linaro-org.zoom.us/j/93853337073

• Dial by your location

  • Find your local number: https://linaro-org.zoom.us/u/adhLE3WFEg

• Previous meeting minutes: 2025-10-23 Linaro Data Center Group steering committee Meeting Agenda/Minutes

• Live Migration on CCA

• Project Updates

• Events

• AOB

• INSERT

• Live Migration on CCA

  • Presentation by Mathias Brossard, from Arm

Open

• Project Updates

  • Deploy CCA on Arm Platforms (DCAP)

    • Updates since last meeting:

      • Continue work on Device Assignment with DMA enablement.

      • CodeLinaro repository being migrated to GitLab.

    • Last stable status:

      • Device Assignment:

        • QEMU as an emulator platform compliant with cca/v10 branches from Arm and RME 1.1 alpha12, along with documentation

      • Kata Containers

        • Rust runtime support proposed upstream.

      • Standardization work

        • RATS documents in IETF review

          • CMW (attestation)

          • RATS Endorsements (attestation)

          • EAT measured components (attestation)

        • RATS documents under development

          • AR4SI / EAR (attestation)

          • CoRIM (attestation supply chain)

          • Epoch markers (attestation)

          • Arm CCA Token (attestation)

          • Arm CCA endorsements (attestation supply chain)

          • Arm PSA endorsements (attestation supply chain)

          • CoSERV w/ Arm, Fujitsu (plus, AMD and Alibaba Cloud)  (attestation supply chain)

          • EAT device attestation profile (attestation)

        • Attested TLS

          • TLS attestation

          • Attested channels using TLS authenticators

  • Performance Optimization (PO)

    • Updates since last meeting:

      • Vector Length Agnostic SVE2 implementation of Poly1305 merged upstream.

      • Neon and Neon/AES enabelment of SM4 for platforms without SM4 CE submitted for review.

      • Armv8 assembly implementation of Camellia including the byte-sliced SIMD (Neon/AES) implementation submitted for review.

    • Last stable status:

      • Get all patches submitted for review accepted upstream.

  • Big Data & Data Science (BDDS)

    • Updates since last meeting:

      • Apache Doris: improve vstring functions performance with SVE intrinsics

    • Last stable status:

      • Bigtop Manager 1.1 released.

      • Apache Doris: port AVX2 intrinsics to SVE intrinsics.

  • Enhanced Software-Defined-Storage on Arm Servers (STOR)

    • Updates since last meeting:

      • MLPerf 2.0 unet3d model training test run on JuiceFS

    • Last stable status:

      • Finish the JuiceFS MLPerf storage 2.0 test, analysis, and recommendations summary.

• Events

  • IETF 124: 1-7 November, Montreal, Canada

    • Linaro and Arm attended remotely.

    • Lots of good progress on the numerous standardization efforts we have.

  • KubeCon North America: 10-13 November, 2025, Atlanta, GA, USA

    • Kevin, from Linaro, attended.

  • Linux Plumbers: 11-13 December 2025, Tokyo, Japan

    • Linaro will be attending and participating in the Confidential Computing microconference.

• AOB

  • See you in the future!