April 2026 monthly summary for microsoft/openvmm focused on delivering an ACPI-based CPU information reader to enable dynamic resource management in UEFI environments. Implemented the ACPI CPU Count Reader feature and integrated it with the OpenVMM codebase (commit 30762365e2f4f486c24187de1f3a62d05236c99c). No major bugs fixed this month. Business value delivered includes improved CPU inventory accuracy for guests, enabling more reliable automatic scaling and dynamic resource allocation in hypervisor deployments. Technologies demonstrated include ACPI table parsing, robust error handling in firmware contexts, and seamless code integration for open-source hypervisor tooling.

Concise monthly summary for 2025-10: Delivered reliability enhancements in storage I/O and foundational guest-based testing infrastructure across two repositories. Key features delivered include SCSI write-protection detection via MODE SENSE in microsoft/mu_basecore and the OpenTMK testing framework for guest-based scenarios with HCL integration in microsoft/openvmm. These efforts improve resilience against write attempts on read-only media and enable cross-architecture testing for hypervisor interactions.