The extended BPF (eBPF) virtual machine allows programs to be loaded into and executed with the kernel — and, increasingly, other environments. As the use of BPF grows, so does interest in defining what the BPF virtual machine actually is. In an effort to ensure a consistent and fair environment for defining what constitutes the official BPF language and run-time environment, and to encourage NVMe vendors to support BPF offloading, a recent effort has been undertaken to standardize BPF.