New Phrack article. Given they release like one a year, figured it warranted posting a link.

Title : Hypervisor Necromancy; Reanimating Kernel Protectors

Author: Aris Thallas
Date: 2020 Feb 14

"In this (rather long) article we will be investigating methods to emulate proprietary hypervisors under QEMU, which will allow researchers to interact with them in a controlled manner and debug them. Specifically, we will be presenting a minimal framework developed to bootstrap Samsung S8+
proprietary hypervisor as a demonstration, providing details and insights on key concepts on ARM low level development and virtualization extensions for interested readers to create their own frameworks and Actually Compile And Boot them ;). Finally, we will be investigating fuzzing implementations under this setup."

http://phrack.org/papers/...