040000 tree a2225b2a2be4b7494518c1ac41541a2d23a9b973	arch
040000 tree 1dac4835d18b90787599471bdf7422e81f8fad0d	hftest
040000 tree 0a5ba7bd64910b380d8d96c552848286046cd668	linux
040000 tree 64b78253d2e182bf7cbd375dd5f6fb9fc8444cd3	vmapi