April 2025: Delivered core updates to the Arceos Hypervisor in arceos-hypervisor/axvisor, including a rebase and percpu version update to improve performance and compatibility (commit e347de19b2b65cbdcd26a6c0b8baac53bd09db1a). Implemented a more robust testing workflow by redirecting make output to a log file and adding panic checks, boosting diagnosability. Updated BIOS image path handling and added a new PCI memory region to support future PCI devices. These changes enhance stability, extensibility, and CI reliability for PCI-backed workloads.

January 2025 monthly summary for arceos-hypervisor/axvisor: Key feature delivered: Rust Edition 2024 upgrade and build system modernization. The work migrated the project to Rust Edition 2024, updated toolchains and dependencies, and refactored the build system and configuration management to improve organization and maintainability. CI/CD workflows, Makefile, and configuration files were updated to align with the new edition. No major bugs fixed this month. Overall impact: improved maintainability, future-proofing, and smoother release processes for axvisor. Technologies demonstrated: Rust 2024 edition, modern build system, CI/CD, Makefile, dependency management, configuration management.

December 2024 monthly summary: Delivered two major virtualization feature enhancements across arceos-hypervisor components, with a focus on flexible memory management and expanded guest support. The work aligned with the roadmap to increase VM performance, isolation, and deployment flexibility in emulated environments. No explicit major bugs fixed this month; efforts centered on feature delivery, stabilization, and preparing for broader workloads.

November 2024 monthly summary: Delivered stability and performance improvements across arceos-hypervisor modules, with a focus on virtualization reliability and boot/relocation correctness. Key accomplishments include an ARM IRQ handling upgrade via AxVCpuHalImpl with per-CPU VM integration and dependency updates to improve IRQ reliability and performance, a boot pagetable mapping fix for riscv64_qemu_virt to ensure proper boot initialization, and a migration synchronization fix ensuring correct task relocation based on affinity by spawning a dedicated migration task and synchronizing the on_cpu flag across CPUs.