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[Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support
From: |
Paul Zimmerman |
Subject: |
[Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support |
Date: |
Tue, 06 Oct 2020 08:27:12 -0000 |
You need to use -M raspi2 (or -M raspi3 for 64-bit kernels) to enable
the Raspberry Pi emulation. And you need version 5.1 or newer of Qemu to
get the dwc2 USB emulation. I don't think any Linux distributions
provide that new of a Qemu, so you might have to build it yourself.
Here is the command line I use to run the Raspbian image 2019-09-26
-raspbian-buster.img. I extracted bcm2709-rpi-2-b.dtb and kernel7.img
from the FAT partition inside the image file.
qemu-system-arm -M raspi2 -drive file=2019-09-26-raspbian-
buster.img,format=raw,if=sd -dtb bcm2709-rpi-2-b.dtb -kernel kernel7.img
-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' -serial stdio -no-reboot -netdev user,id=net0
-usb -device usb-kbd -device usb-tablet -device usb-net,netdev=net0
That should give you a graphical emulation with working keyboard, mouse
and networking. Mass-storage also works, but I left that out for
simplicity.
But note that if you absolutely must pass-through a USB device from the
host, it probably won't work. That's because the dwc2 controller
emulation is connected through a full-speed hub emulation, so unless
your USB device is connected at full-speed on the host, it probably
won't work.
--
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https://bugs.launchpad.net/bugs/1772165
Title:
arm raspi2/raspi3 emulation has no USB support
Status in QEMU:
Confirmed
Bug description:
Using Qemu 2.12.0 on ArchLinux.
Trying to emulate arm device with `qemu-system-arm` and attach usb
device for unput using
` -usb -device usb-host,bus=001,vendorid=0x1d6b,productid=0x0002 `
# lsusb returns
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 014: ID 13d3:3487 IMC Networks
Bus 001 Device 004: ID 0457:11af Silicon Integrated Systems Corp.
Bus 001 Device 003: ID 0bda:57e6 Realtek Semiconductor Corp.
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card
Reader Controller
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
# qemu returns
qemu-system-arm: -device usb-host,bus=001,vendorid=0x1d6b,productid=0x0002:
Bus '001' not found
Tried with connecting external usb keyboard but that didn't seem to work
either.
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- [Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support, Dims, 2020/10/05
- [Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support, Paul Zimmerman, 2020/10/05
- [Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support, Paul Zimmerman, 2020/10/05
- [Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support, Dims, 2020/10/06
- [Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support, Dims, 2020/10/06
- [Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support,
Paul Zimmerman <=
- [Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support, Paul Zimmerman, 2020/10/06