I think community is familiar with a BIOS's replacement which is UEFI.
I found that UEFI contains the module with name SMM (System Management Mode), which is running at the highest priority exception level of a processor.
That is why I am asking if it possible to run secure monitor with secure operating system with UEFI, at the same time not breaking the model of the latest one?
If it is possible, than how to do it and what is the boot flow then?
Thank you!