2025-10 Monthly summary for linux-riscv/linux focusing on virtualization memory management improvements and test coverage. Delivered key feature enhancements for KVM guest_memfd, along with a strengthened self-test framework, driving reliability and broader memory-sharing capabilities for KVM guests on riscv.

September 2025 monthly summary for linux-riscv/linux focusing on KVM-related work across selftests, SEV/SVM/AVIC, and x86 state management. Delivered features and stability improvements with expanded test coverage, refined security controls, and clearer state handling, driving reliability, security, and performance visibility for virtualization workloads.

For 2025-07, delivered targeted improvements in the geerlingguy/linux repo focused on virtualization reliability, correctness of capability reporting, and maintainability. Key contributions include refactoring KVM APIC vector handling to improve readability, future usability, and a minor size optimization; hardening TDX capability reporting by zero-initializing kvm_tdx_capabilities to prevent uninitialized data from leaking to userspace; and correcting PCI Immediate Readiness detection to reflect device status even without PM support. These changes reduce risk of incorrect userspace data, improve guest stability and security posture, and establish a solid foundation for future KVM/TDX/PCI enhancements.

Month: 2024-11 — The focus was stabilizing the KVM APICv interrupt path in the analogdevicesinc/linux repository to improve virtualization reliability and customer workloads that depend on APICv behavior. Delivered a targeted bug fix to ensure correct APICv interrupt injection when APICv is disabled, reducing the risk of missed interrupts in edge cases and improving host stability in virtualized environments.