Linux 6.14 Kernel: KVM Virtualization Gets a Boost

The upcoming Linux 6.14 kernel includes a significant number of updates to its Kernel-based Virtual Machine (KVM) subsystem. Improvements include removing redundant TLB flushes on AMD CPUs, an overhaul of the KVM x86 CPUID feature infrastructure for better vCPU capability tracking, continued work on Intel Trust Domain Extensions (TDX) VM support, refined VM-exit handling for improved VMX/SVM parity, and added Zabha, Svvptc, and Ziccrse extension support for RISC-V KVM guests. These changes promise enhanced performance and stability for virtual machines.