The theme of the hypervisor is closely related to the hardware used with it. Thus, it is difficult to recognize the hypervisor without knowing the details of the equipment.
So, if the hypervisor is implemented on ARMv7, you need to look at the implementation of the hypervisor along with hardware support, for example. a virtualization extension or a security extension provided by hardware.
A good entry is available on the genodra web page. You will also find an article on extending security.
This documentation is for ARMv7 hardware.
ARMv7 Cortex A: Architecture Reference Guide provides more detailed information on the hardware support needed for the hypervisor.
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