Recently in the latest Intel SDM, you can find that there is a new exception type, Virtualization Exception, in Chapter 6 (Interrupt and Exception Handling) of VOL2.
What is it? How to use it? ...
x86 and ARM processors both provide many hardware enforced security features, e.g. NX (No-eXecute) for executable space protection, to help system software engineers to build a secure computing environment. This article summaries those security features for both x86/Intel and ARM architectures, and explains how are they used by Operating System.