SPDX license identifiers are used throughout the code to state the licensing terms of each file clearly. This boils down to:
GPL-2.0 for the EVL core in kernel space.
GPL-2.0 WITH Linux-syscall-note for the UAPI bits exported to user-space, so that libevl knows at build time about the ABI details of the system call interface implemented by the EVL core.
MIT for all code from libevl, which implements the EVL system call wrappers, utilities and test programs.
Except where otherwise noted, the EVL documentation - including contents of this site - is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.