问题
Single core worked with fs.py at a5bc2291391b0497fdc60fdc960e07bcecebfb8f (Nov 2018), but multicore hanged in early in the boot process. Is multicore KVM supported on ARM
回答1:
As of October 2019, gem5's ARM KVM is generally not robust enough to be generally recommended.
Multicore works on some setups and fails on others, so there are likely outstanding bugs.
There are also issues with GICv2 vs GICv3 version incompatibilities: only GICv2 hosts were supported.
It is likely not extremely hard to get it working, but it does require someone to sit down and focus on it for a few weeks.
来源：https://stackoverflow.com/questions/53523087/how-to-run-gem5-on-kvm-on-arm-with-multiple-cores