+Buiding system pre-requistes
+----------------------------
+1. Ubuntu 14.04 LTS desktop or server
+2. Minimum 4 CPU cores, 6 GB RAM, and 200 GB available hard drive space
+3. "VirtualBox" and "vagrant" installed
+
+Buid instruction
+----------------
+1. Clone the kvmfornfv repo from https://gerrit.opnfv.org/gerrit/kvmfornfv by
+ "git clone https://gerrit.opnfv.org/gerrit/kvmfornfv"
+2. You can modify the kernel code in kvmfornfv/kernel as you want
+3. Go to kvmfornfv/fuel-plugin/vagrant, type "vagrant destroy -f; vagrant up;
+ estroy -f", the building will start
+4. When the building completes, you should find the built fuel-plugin-kvm in
+ kvmfornfv/fuel-plugin with the name as "fuel-plugin-kvm-0.9-0.9.0-1.noarch.rpm",
+ where "0.9-0.9.0-1" is the version information for this plugin, this version info
+ may be changed in future. The built plugin incules the changes you made.