1.参考文档：
http://kernelpanik.net/running-mac-osx-yosemite-on-kvm/
http://www.bonashen.com/post/artifice/running-mac-os-x-as-a-qemu-kvm-guest
http://wat.im/kvm-virtualization-of-osx-using-libvirt/
http://www.contrib.andrew.cmu.edu/~somlo/OSXKVM/
https://blog.ostanin.org/2014/02/11/playing-with-mac-os-x-on-kvm/
2.Mac启动时默认需要手动按一下Entry，处理方法：
To automatically boot into OS X without needing to press enter at the prompt, edit (create) the org.chameleon.boot.plist file at /Extra/org.chameleon.boot.plist. A simple example to automatically boot would be:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Timeout</key>
<string>3</string>
<key>Graphics Mode</key>
<string>1440x900x32</string>
</dict>
</plist>
https://blog.ostanin.org/2014/02/11/playing-with-mac-os-x-on-kvm/