Arm ServerReady is a program to make sure that the ecosystem is enabled to support the ARM server, making sure that all the operating systems just work and can be installed without a lot of patches and stuff. They ask ODM and Silicon Providers to work with ARM to comply with the standards to make sure everything just is working. Linaro LEG also did an SBSA QEMU effort, that is well aligned with the Arm ServerReady Program letting people run the tests even before the hardware is available.
You can find the slideshow about this here: https://www.slideshare.net/linaroorg/hkg18317-arm-server-ready-program
