The guest channel message definitions and functions in guest_channel.h are needed by applications and need to be made public.
This worked pre-20.11, but now with all the meson/ninja changes, making these apps externally no longer works. To fix, we need to move the header file with the API definitions for the channel commands public, and rename the functions accordingly. The main change is to rename channel_commands.h to rte_power_guest_channel.h so that it gets picked up by the installer and copied to /usr/local/include. Other changes include renaming #defines to have RTE_ at the beginning instead of CPU_. Finally we refactor the code to work with those changes. --- v2 changes - re-worked from monolithic patch to a 6 patch patchset for easier review v3 changes - Ensure both functions added to the API are tagged as experimental
