Research window: Past 24 hours (2026-10-08 05:00 ~ 2026-10-09 05:00, Beijing time), the first regular daily briefing window after the National Day holiday.

Sources: Google News aggregation (12 query sets in Chinese and English, via proxy), Sina Finance, ifeng.com, HSTong, 21jingji.com, Phoronix, CNX Software, Tenstorrent official website, Upbeat Technology, openRuyi official news page, RISC-V International member company website sweep (391 companies), and GitHub (XiangShan/NEMU/GEM5/difftest, DAMO XuanTie XUANTIE-RV, ESWIN, Sophgo, Nuclei, Espressif, SpacemiT (including robotics org), Sipeed, revyos, openRuyi-Project, Radxa Linkr and other organizations’ and key repositories’ push and commit searches; including ecosystem project tracking such as Chipyard and riscv-unified-db).

Index

  • Today’s Highlight: ESWIN Computing priced at HK$1.55, Hong Kong public offering 9.09x subscribed, listed on HKEX today (10-08)
  • I. Open-Source Community and Software Ecosystem
    • SpacemiT: Linux 7.4 device tree update, K3 frequency scaling, thermal and fan control enabled (10-08)
    • RevyOS: Batch kernel configuration landed, K1/K3 and EIC7700 platforms advance (10-08)
    • openRuyi: Batch SPECS package expansion, 20+ go-github series merged in one pass (10-08)
    • XiangShan: Two FEX0 backend fixes wrapped up, merged into main branch (10-08)
    • XiangShan simulation chain: NEMU opens multiple PRs, difftest supports independent accelerator clock (10-08)
    • Ecosystem shorts: Chipyard merges PMU library, riscv-unified-db adds Zkr/Sdext entries (10-08)
  • II. Product and Ecosystem Updates
    • Vayavya Labs partners with Tenstorrent: SystemC virtual platform accelerates RISC-V hardware/software development (10-07)
    • Sophgo: SG2044 merged into SDK v20261008 release commit, board codename renamed SRM31 (10-08)
    • Radxa Linkr v1.5.2 released: FN double-click to toggle hotspot, fixes Q8B resolution switching (10-08)
    • Sipeed: New Tang Mega 138K/AE350 Linux repository, NanoKVM Go board support advances (10-08)
  • III. Deep Dive on Domestic Teams
    • ESWIN Computing: H-share priced at HK$1.55, net proceeds HK$2.386 billion, grey market closed up 1.6% (10-08)
    • Zijin Semiconductor: Automotive-grade RISC-V chip shipments surpass ten million units, “cerebellum” control chip E100 in development (10-08)
    • SpacemiT: spine-triton backend fix merged, ai-gateway upgraded to 0.2.0 (10-08)
    • Espressif: esp-nn fixes RISC-V PIE kernel unaligned access issue (10-08)
  • IV. Embodied Intelligence and Robotics Special Section
    • Upbeat: Bluemag Pi drone flight controller released, SiFive E3/E2 dual-core with onboard AI (10-07)
    • SpacemiT Robotics: ros2_humanoid control chain migrated to operator socket API (10-08)
    • ZeroWire: Q8botOne palm-sized open-source quadruped robot opens crowdfunding pre-launch (10-08)
  • V. Summary and Trend Observations

Today’s Highlight: ESWIN Computing lists on HKEX today, priced at HK$1.55, public offering 9.09x subscribed

Date: 2026-10-08　Sources: Sina Finance (Gelonghui): ESWIN Computing Hong Kong public offering 9.09x subscribed, listing October 9 (10-08), HSTong: Grey market close, ESWIN Computing up 1.6% (10-08), ifeng.com (Ryanben Capital): “First RISC-V stock” expected to list in Hong Kong on October 9 (10-08)

The “first RISC-V stock” ESWIN Computing (01256.HK) announced its allotment results on the evening of 10-08: approximately 1.617 billion H shares in the global offering, priced at HK$1.55 per share (range HK$1.48 to HK$1.59), net proceeds of approximately HK$2.386 billion; the Hong Kong public offering was 9.09x subscribed, the international offering was 1.95x subscribed, with a one-lot allotment rate of approximately 10%. Nine cornerstone investors collectively subscribed approximately HK$1.161 billion. Grey market trading was highly volatile — opening down nearly 17%, closing up 1.61% at HK$1.57 per share, corresponding to a total market capitalization of approximately HK$34.64 billion. The company lists on the HKEX Main Board today (10-09), with approximately 35% of proceeds directed toward chip product development and iteration, and 30% toward the RISAA (RISC-V and AI) hardware/software platform.

I. Open-Source Community and Software Ecosystem

1.1 SpacemiT: Linux 7.4 Device Tree Update, K3 Frequency Scaling, Thermal and Fan Control Enabled

Date: 2026-10-08　Source: Phoronix “SpacemiT RISC-V SoCs To See More Improvements With Linux 7.4” (10-08)

The upstream kernel device tree update pull request for SpacemiT K3/K1 was sent on 10-08 (slated for Linux 7.4): K3 CPU frequency scaling support is extended to more hardware, the RFKILL node is enabled, and thermal and fan control is newly added—targeting the CTF2301 sensor chip on the K3 CoM260 system-on-module; the K3-based Muse Pi Pro, Orange Pi R2S, and Orange Pi RV2 development boards all enable CPU frequency scaling with this batch. On the K1 side, onboard EEPROM support is enabled, along with the ability to set the MAC address from EEPROM data. As one of the first mass-produced RVA23 chips, K3 continues to see upstream support converge.

1.2 RevyOS: Batch Kernel Configuration Landed, K1/K3 and EIC7700 Platforms Advanced

Date: 2026-10-08　Source: revyos/linux commit log (revyos/7.3.y branch, 10-08)

The RevyOS kernel repository (revyos/linux) pushed more than 20 configuration commits within the window: adding dp1000 and K1/K3-specific configurations (K3 display DC, K3 UFS, K1 USB2 for Banana F3); enabling the ESWIN EIC7700 architecture along with DWMAC, PINCTRL drivers, TH1520 GPU power sequencing, RTC/RESET_GPIO, and a batch of commonly used drivers; on the USB-C side, enabling Type-C role switching, TCPM, UCSI, FUSB301, and DP alternate mode. On the CI side, cross/native build jobs and a linuxboot configuration were added. Distribution kernel configurations for multiple platforms (TH1520/K1/K3/EIC7700) were rolled out in a concentrated push during the first window after the holiday.

1.3 openRuyi: Batch SPECS Package Expansion, 20-Plus go-github Series Landed at Once

Date: 2026-10-08　Source: openRuyi commit log (10-08), openRuyi commit: cgctl supports current cilium-ebpf API

The openRuyi main repository merged more than 20 SPECS commits within the window: batch-adding go-github-* series package definitions (gopsutil, gokrb5, nats.go, cassandra-gocql, aliyun-credentials-go, google-cel-go, etc.), adapting cgctl to the current cilium-ebpf API, and fixing the Go build for jcmturner-gokrb5-v8. A check against its official news page shows no new release announcements after the 2026.09 version; this batch of package expansion should be routine post-release software source supplementation, covering cloud-native and observability-related Go ecosystem dependencies.

1.4 XiangShan: Two FEX0 Backend Fixes Closed Out, Merged into Main Branch

Date: 2026-10-08　Source: XiangShan PR #6649: Preserve FEX0 output slot for x0 conversion (opened 09-29, merged 10-08), XiangShan PR #6651: Clean up unused F2vCfg in FEX0 (opened 09-29, merged 10-08)

The XiangShan backend fixes recorded in the 09-29 daily briefing officially closed out within the window: #6649 (preserving the FEX0 output slot for x0 conversion) and #6651 (removing the unused F2vCfg configuration in FEX0) were merged into the main branch in succession, both located in the issue and resource management path of the floating-point execution unit FEX0. The previously opened #6652 and #6653 (vector issue and ordering fixes) did not appear in this window’s merge records; their review trajectory remains to be tracked.

1.5 XiangShan Simulation Chain: NEMU Opens Multiple PRs in Succession, difftest Supports Independent Accelerator Clock

Date: 2026-10-08　Source: difftest PR #977: Support independent accelerator clock (10-08), NEMU PR #1242: Prevent SIP writes from latching timer interrupts, NEMU PR #1243: difftest guided memory observation, NEMU PR #1244: CHECKPOINT_HERE checkpoint mode, NEMU PR #1245: ZSTD checkpoint format error handling

The simulation chain advanced on multiple fronts within the window: difftest #977 was merged—supporting an independent accelerator clock, paving the way for multi-clock-domain comparative simulation; NEMU opened multiple PRs in succession—#1241 (preserving first-page writes on RVV cross-page store page faults, at the window edge), #1242 (preventing SIP writes from latching timer interrupts), #1243 (difftest guided memory observation), #1244 (introducing CHECKPOINT_HERE checkpoint mode, based on nemu_trap 0x105), #1245 (improved ZSTD checkpoint format error handling), and pushed the feat-matrix-mem-profiling feature branch. The checkpoint mechanism and CPU behavior fixes proceed in parallel, with the simulation infrastructure building momentum for the next round of microarchitecture iteration.

1.6 Ecosystem Shorts: Chipyard Merges PMU Library, riscv-unified-db Adds Zkr/Sdext Entries

Date: 2026-10-08　Source: Chipyard PR #2387: Merge PMU library and add PMU configuration for BOOM v3 (10-08), riscv-unified-db commit log (10-08)

The open-source SoC framework Chipyard (UC Berkeley) merged #2387 within the window: introducing the PMU (performance monitoring unit) library as a generator submodule, adding a PMU configuration for BOOM v3, and synchronously updating the submodule pointer—completing the infrastructure for hardware performance analysis of the out-of-order core. riscv-unified-db (the specification’s machine-readable database) added entries including Zkr seed CSR (with C++ backend entropy source support), the Sdext extension description, and illegal instruction handling, as the specification database’s extension coverage continues to expand.

II. Product and Ecosystem Updates

2.1 Vayavya Labs Partners with Tenstorrent: SystemC Virtual Platform Accelerates RISC-V Hardware/Software Development

Date: 2026-10-07　Source: Tenstorrent Newsroom: Vayavya Labs Partnership Announcement (10-08), PR Newswire Release (10-07)

Vayavya Labs announced it has become a virtual platform partner of Tenstorrent: leveraging its TvastaaVP platform, it will build a SystemC virtual platform for Tenstorrent’s security and system management IP, enabling earlier software development and validation before tape-out and reducing integration risk. The two companies describe the collaboration as an upgrade from a one-off modeling engagement to a multi-year partnership, and will present jointly at Tenstorrent’s RISC-V ecosystem event “The Open Frontier” (10-08) in Bangalore. Shift-left design is becoming a competitive factor for high-performance RISC-V chips.

2.2 Sophgo: SG2044 Merged into SDK v20261008 Release Commit, Board Codename Renamed SRM31

Date: 2026-10-08　Source: bootloader-riscv commit log (10-08)

Sophgo’s bootloader-riscv completed three commits for the SG2044 series within this window: renaming the board codename SRM3-C0 to SRM31, adding a release script, and merging the SDK v20261008 release commit—the firmware and SDK for the 64-core RISC-V server platform SG2044 have entered a new round of versioned delivery. Repositories including sophgo-edk2 and edk2-platforms also saw maintenance pushes during the same period (the UEFI support line for the SRM/cv series).

2.3 Radxa Linkr v1.5.2 Released: FN Double-Click Toggles Hotspot, Fixes Q8B Resolution Switching

Date: 2026-10-08　Source: Radxa Linkr v1.5.2 Release (10-08)

Radxa’s browser-based remote management product line Linkr released v1.5.2 (the previous version v1.5.0 was released on 09-24): the new feature is quick double-click of the FN user button to toggle the Wi-Fi hotspot on/off; improved hotspot band selection to accommodate Wi-Fi module limitations (use 5GHz when not connected or when connected via 5GHz, use 2.4GHz when connected via 2.4GHz); and fixed a resolution switching issue when using the Radxa Dragon Q8B as a video input source. Out-of-band management scenarios for development boards/NAS continue to be refined.

2.4 Sipeed: New Tang Mega 138K/AE350 Linux Repository Created, NanoKVM Go Board Support Advances

Date: 2026-10-08　Source: sipeed/Tang-Mega-138K-Linux repository (newly created), maix_ax620e_sdk commit log (10-08)

Sipeed created a new Tang-Mega-138K-Linux repository within this window, described as the “hard-core AE350 Linux repository for the Tang Mega 138K”—this FPGA development board carries an onboard 32-bit RISC-V AE350 hard core (800MHz), and this repository signals the initiation of a project to port Linux to the hard core (the repository is currently empty, an early-stage signal). During the same period, maix_ax620e_sdk’s U-Boot added NanoKVM Go board identity verification and recovery mode logo display; the SLogic/scopehal toolchain and sipeed_wiki, among 6 other repositories, also saw pushes.

III. Deep Dive on Domestic Teams

3.1 ESWIN Computing: H-share priced at HK$1.55, net proceeds HK$2.386 billion, grey market closes up 1.6%

Date: 2026-10-08　Source: Sina Finance (Gelonghui): Public offering 9.09x oversubscribed (10-08), HSTong: Grey market closes up 1.6% (10-08), 21jingji.com: IPO launch report (10-03)

Ahead of today’s listing, ESWIN Computing (01256.HK) disclosed its final allotment results (see “Today’s Highlights”): priced at HK$1.55, net proceeds of HK$2.386 billion, and the Hong Kong public offering 9.09x oversubscribed. Background data (from IPO-period reports): China’s RISC-V main-control chip market grew from RMB 1.1 billion in 2021 to RMB 37.7 billion in 2025, a CAGR of roughly 139.5%; by 2025 revenue, the company is China’s largest domestic smart-terminal human-machine interaction chip provider and third-largest domestic RISC-V main-control chip provider; this offering introduced 9 cornerstone investors (including entities under Tongfu Microelectronics and Chipmore Technology) subscribing a combined HK$1.161 billion.

3.2 Zijing Semiconductor: Automotive-grade RISC-V chip shipments surpass 10 million units, “cerebellum” control chip E100 in development

Date: 2026-10-08　Source: ifeng.com (Wangtongshe Express): Zijing Semiconductor automotive chip shipments surpass 10 million units (10-08)

Hunan Zijing Semiconductor, incubated by Great Wall Motor, disclosed during the window that automotive-grade chip shipments have surpassed 10 million units. Its M100 (China’s first open-source RISC-V core automotive-grade MCU) entered mass production and vehicle deployment on 2025-12-18, used in body control applications such as combination headlights, ambient lighting, and combination switches; IP, manufacturing, and packaging/testing are all domestically sourced, with more than 15 partner customers. On the qualification side, it has passed ISO 26262 ASIL-D process, ASIL-B product, AEC-Q100, and ASPICE certifications. Product roadmap: M200 is planned for tape-out in Q4 2026 (40nm; combination instrument cluster / T-BOX / gateway / BCM), M300 targets zone controllers, and the A100 series covers power and driver chips; for embodied intelligence, its first “cerebellum control” chip E100 (RISC-V architecture) is in development and not yet in mass production. In May 2026, Zijing partnered with Great Wall Motor and others to establish a RISC-V industry innovation center.

3.3 SpacemiT: spine-triton backend fixes merged, ai-gateway upgraded to 0.2.0

Date: 2026-10-08　Source: spine-triton commit log (10-08), ai-gateway PR #44: gateway upgraded to 0.2.0 (10-08), mpp commit log (10-08)

SpacemiT’s software stack saw multiple updates during the window: spine-triton (the Triton compilation stack for K3) merged the feat/spacemit-backend-fixes branch into main twice in succession (closing out the backend fix line) and pointed GitHub workflow build artifacts to the official release; ai-gateway merged #44 to reach 0.2.0 (following earlier additions of a model download API, error classification, and failure logging), with ai-sdk updating its gateway submodule in sync; mpp, the media processing library, added optional Matroska file input to demux; and docs-ros completed English synchronization of its ROS2 documentation. The AI and multimedia toolchain around K3 continues to mature.

3.4 Espressif: esp-nn fixes unaligned access issue in RISC-V PIE kernels

Date: 2026-10-08　Source: esp-nn commit log (10-08)

Espressif’s esp-nn (neural network operator library) merged a batch of RISC-V-related fixes during the window: enabling unaligned stores in the RISC-V PIE kernel for max_pool, setting the PIE unaligned access bit at each kernel entry (this fix targets issues caused by unaligned stores on ESP32-P4), plus adding six CONV_2D shape tests from GitHub issue #36 and switching CI to the esp-emu 0.46 emulator. On the esp-idf side, 14 merges during the window focused mainly on SPI / USB Host / low-power fixes (routine maintenance); the Espressif organization pushed to 30 repositories in total during the window.

IV. Embodied Intelligence and Robotics Special Section

4.1 Upbeat: Bluemag Pi Drone Flight Controller Released, with SiFive E3/E2 Dual-Core and Onboard AI

Date: 2026-10-07　Source: Upbeat Technology: Bluemag Pi Press Release (10-07), PR Newswire English Release

Taiwan-based Upbeat Technology has released the Bluemag Pi sensor-integrated AI flight controller board: built on its UP301 SoC (SiFive E3 and E2 dual-core RISC-V architecture), with multi-core task partitioning that separates flight-critical tasks from communication/navigation/system management; it runs the Apache NuttX RTOS and is compatible with the PX4, ArduPilot, and Betaflight open-source flight control stacks. Onboard features include dual IMUs, a barometer, and dual GNSS receivers (sensor fusion cross-validation), a 4-in-1 ESC, and MAVLink telemetry. It targets long-endurance fixed-wing aircraft, commercial multirotors, and unmanned surface vessels; it will be demonstrated live at CEATEC 2026 (October 13–16, Chiba), alongside an extended showcase of its product lines including humanoid robot hands.

4.2 SpacemiT Robotics: ros2_humanoid Control Chain Migrated to Operator Socket API

Date: 2026-10-08　Source: ros2_humanoid commit log (10-08)

Within this window, the spacemit-robotics organization updated ros2_humanoid: ROS control was migrated to the operator socket API—following the earlier architectural direction in which humanoid_linglong added operator startup and bootstrapping services, and humanoid_common introduced operator services and remote clients. The organization of the humanoid robot control chain continues to evolve toward an “operator–actuator” decoupling.

4.3 ZeroWire: Q8botOne Palm-Sized Quadruped Robot Opens Crowdfunding Prelaunch

Date: 2026-10-08　Source: CNX Software: Q8botOne coverage (10-08), Crowd Supply crowdfunding page

ZeroWire Robotics’ Q8botOne palm-sized open-source quadruped robot has entered its prelaunch phase on Crowd Supply: ESP32-C3-MINI-N4 (RISC-V) as the main controller, 8 DYNAMIXEL XL series smart servos, a parallel-leg structure, and a cable-free integrated PCB design. It weighs approximately 250 grams, can trot, jump, and carry roughly twice its own weight; the hardware (Altium schematics, Gerber files, BOM, 3D CAD) along with firmware and Python control software will all be open-sourced, and a pre-paired wireless controller is included. Compared with PWM servo solutions of the same size, smart servos support joint feedback and PID tuning, targeting maker and educational/research scenarios.

V. Summary and Trend Observations

  • Capital markets and mass production milestones arrived on the same day: ESWIN Computing listed on the Hong Kong Stock Exchange today (priced at HK$1.55, with public offering 9.09x oversubscribed), while Zijing Semiconductor’s automotive-grade RISC-V chips surpassed ten million units shipped—RISC-V’s visibility is rising simultaneously on both the capital markets and automotive mass production fronts.
  • Kernel and distribution activity resumed at full speed after the holiday: SpacemiT K3/K1 upstream device tree support was finalized (slated for Linux 7.4), RevyOS rolled out over 20 kernel configuration commits at once (including ESWIN EIC7700 and linuxboot), and openRuyi expanded its Go ecosystem packages in bulk.
  • The XiangShan ecosystem advanced on both simulation and fix fronts: Two FEX0 backend fixes were formally merged; NEMU opened multiple PRs on the same day (checkpoint mechanism, SIP/RVV fixes, difftest-guided observation), with difftest now supporting independent accelerator clocks, building momentum for the next round of microarchitecture iteration and multi-clock-domain verification.
  • The ecosystem is expanding toward both ends of the design spectrum: On the left end, Tenstorrent is accelerating IP development through virtual platform collaboration, and Chipyard has filled in PMU infrastructure; on the right end, edge products continue to emerge (Upbeat’s drone flight controller, the Q8botOne quadruped robot), as RISC-V keeps placing its pieces in safety-critical real-time systems and robotics scenarios.
  • To watch: ESWIN’s first-day trading performance; the trajectory of the review queue for XiangShan #6652/#6653 and others; follow-up commits to the Sipeed AE350 Linux repository; and the pace of componentization rollout for SpacemiT ai-gateway 0.2.0.

Appendix: Complete Source List

Source Verification Table

Source Verification Result
Hacker News Hit “AI agent designs a complete RISC-V CPU” (Tom’s Hardware) — verified publication date as 2026-04, a resurfaced old article, not included; discussions of old projects such as SERV do not constitute news
Google News aggregation (12 query sets in Chinese and English, via proxy) English side hit SpacemiT Linux 7.4, Vayavya×Tenstorrent, Upbeat, Q8botOne, etc. (included); Chinese side hit ESWIN pricing and dark pool, Zijin Semiconductor (included); DAMO XuanTie / DAMO Academy / Espressif queries returned gambling SEO and stock market noise, filtered out semantically
Phoronix / CNX / i-programmer RSS SpacemiT Linux 7.4 (included 1.1), Q8botOne (included 4.3); Efinix Sapphire RV64 was covered in the previous issue, not repeated
GitHub organization check (24-hour window) Pushes within window: espressif 30, spacemit-com 9, sipeed 6, openRuyi-Project 6, sophgo 5, spacemit-robotics 1, revyos 1, radxa-linkr 1; XUANTIE-RV, eswincomputing, Nuclei-Software, openhwgroup 0 within window
Key repositories (XiangShan family and ecosystem) XiangShan / NEMU / difftest / GEM5 / XSCache all had pushes or PR activity (included 1.4 / 1.5); Chipyard, riscv-unified-db included 1.6
openRuyi dual sources Official website: no new releases after 2026.09; GitHub: 20+ SPECS batch package expansion (included 1.3)
Member company website sweep Swept 391 companies: 228 unchanged, 98 with routine page updates (corporate news and section rotation, no substantive RISC-V developments), 65 failed to scrape (including ISCAS, Beijing Institute of Open Source Chip, Tencent, etc.); no member-side items included
English vendor queries (SiFive / Andes / Tenstorrent / SpacemiT / Milk-V, etc.) Tenstorrent hit virtual platform partnership (included 2.1), SiFive side hit Upbeat product release (included 4.1); no new releases from other vendors within window