Using DTB provided by EFI at 0x7feed000.
Kernel entry at 0x76000200...
Kernel args: (null)
WARNING: Cannot find freebsd,dts-version property, cannot check DTB compliance
---<<BOOT>>---
#!/bin/sh
qemu-system-arm \
-M virt \
-m 1024 \
-drive file=pflash0.img,format=raw,if=pflash,readonly=on \
-drive file=pflash1.img,format=raw,if=pflash \
-drive file=$1.img,if=virtio,cache=writethrough \
-nographic \
-serial mon:stdio
dd if=/dev/zero of=pflash0.img bs=1m count=64
dd if=/dev/zero of=pflash1.img bs=1m count=64
dd if=QEMU_EFI.fd of=pflash0.img conv=notrunc
dd if=QEMU_VARS.fd of=pflash1.img conv=notrunc
armv6 on qemu on X5675 @ 3.07GHz
real 2m52.248s
user 2m18.280s
sys 0m22.967s
PI ZERO
real 5m3.495s
user 4m26.679s
sys 0m24.696s
i5-4570R @ 2.70GHz virtual box guest
real 0m7.090s
user 0m5.652s
sys 0m0.569s
all on 13-RELEASE