040000 tree 9cf8698187fa74e7d7057e832797b8d2b708f617	baremetal
040000 tree f2870f396b824979ed4c67b731ee5612384b8f69	kvm
040000 tree 0967c642039673943251b455441b0fe3620c77f5	ovm
040000 tree b94fbdcf0cb57b60fb4ee5d8f20a197a1e1733f4	simulator
040000 tree 0975d4bc8a8c4dc3a234c8a55459a272434349f1	vmware
040000 tree 61cac3b1ecab6439110922319ea0d5eaa9d5a9e7	xen