I'm running armbian 23.08 bookworm on an orange pi 5 plus. I'm trying to run VMs that boot with UEFI, but these are hanging. I suspect a bug in the vendor kernel (5.10.160-rk35xx), since this works fine on an AWS bare metal arm64 host.
Example:
```
$ sudo apt install qemu-system qemu-efi-aarch64
...
$ cp /usr/share/AAVMF/AAVMF_VARS.fd ./aavmf_efivars.fd
$ qemu-system-aarch64 \
-machine virt \
-cpu max \
-drive if=pflash,unit=0,format=raw,readonly=on,file=/usr/share/AAVMF/AAVMF_CODE.fd \
-drive file=aavmf_efivars.fd,format=raw,if=pflash
-net none \
-nographic \
-enable-kvm
```
This hangs for me (to exit press C-a x). If I remove `-enable-kvm`, the UEFI shell loads.