I hope you’ll be able to throw in some words to help me decide what best suits me.

I work on a bring up of a CPU, consiting of ARM Cortex-A, supporting the newest (or almost the newest) ARMv9+.

I am planning to use TF-A to get myself going with the El3 firmware developing, and now I am currently doubting how to best simulate the Cortex-A processor.

qemu-system-aarch64 –cpu help doesn’t give me the specific cortex-a CPU I intend to work with – The newest I see there is cortex-a72 which is ARMv8.

Thus, I started considering using fast-modles.
Is there anyone experienced with any of QEMU or fast-modles and can share from his/her experience what is more suited?
How much efforts will it require?

Any help will be greatly appreciated.

P.S If anyone also knows the difference between QEMU –machine and –cpu it might also be useful.
What’s the difference between specifying the CPU or the virtual machine?