qemu-system-aarch64 emulate raspi, but no wifi

[jeffery9]

download SD image from https://nightly.odoo.com/master/iotbox/iotboxv21_10.zip

and run vm with the following command

qemu-system-arm \
  -M versatilepb \
  -cpu arm1176 \
  -m 256 \
  -hda ./iotbox.img \
  -net user,hostfwd=tcp::5022-:22 \
  -dtb ./versatile-pb-buster.dtb \
  -kernel ./kernel-qemu-4.19.50-buster \
  -append 'root=/dev/sda2 panic=1' \
  -no-reboot

it reports hub 0 with no nics, and halt PI.

details as

WARNING: Image format was not specified for './iotbox.img' and probing guessed raw.
         Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
         Specify the 'raw' format explicitly to remove the restrictions.
qemu-system-arm: warning: hub 0 with no nics
vpb_sic_write: Bad register offset 0x2c

[jeffery9]

extract kernel and dtb from pi image, it works

but this can't emulate wifi

#!/bin/bash

qemu-system-aarch64  -machine type=raspi3b  -m 1024  \
-kernel ./kernel8.img \
-dtb ./bcm2710-rpi-3-b-plus.dtb \
-append "'rw earlycon=pl011,0x3f201000 console=ttyAMA0 loglevel=8 root=/dev/mmcblk0p2 fsck.repair=yes net.ifnames=0 rootwait memtest=1 dwc_otg.fiq_fsm_enable=0"  \
-usb \
-serial stdio \
-drive id=hd-root,format=raw,file=./iotbox.img \
-netdev user,id=net0,hostfwd=tcp::5022-:22,hostfwd=tcp::5080-:80,hostfwd=tcp::5069-:8069,hostfwd=tcp::5443-:443 \
-device usb-hub \
-device usb-kbd \
-device usb-tablet  \
-device usb-net,netdev=net0 \
-display none

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