This Manual of Intel is used to reference to virtualization development. From last resourced I uploaded, I found some distinguish that it is different from 31 chapter of this version of resource.

If you want to search some instructions of Intel, it is a terrible material which includes four volumes(basic architecture, instruction set references, system programming guide and Model-specific registers). recommend strongly to use! I found it spend much energy. If you have other excellent resource, share with me.