Hi, I have set user_creatable to true in class_init function of pl061 source code. Now when I run qemu via command line with *-device *option it gives below output
> qemu-system-arm: Device pl061 can not be dynamically instantiated > I request community members to reply asap!!!!!!!!!!!!!!! On Fri, 8 May 2020 at 07:40, Priyamvad Acharya <priyamvad.agni...@gmail.com> wrote: > Hi, > Thanks for providing relevant information. > FYI > I am using Qemu version *4.2.94 (v5.0.0-rc4-dirty).* > I am using *virt* board. > > Where we need to set *user creatable *to true? > Any other modification is needed to allow sysbus device support? > > Below is the script which I am using to boot linux image with pl061 > device on virt board. > > #!/bin/bash >> >> KERNEL="/lhome/priyamvad/debian_qemu_arm32/vmlinuz-3.16.0-6-armmp-lpae" >> >> INIT_IMAGE="/lhome/priyamvad/debian_qemu_arm32/initrd.img-3.16.0-6-armmp-lpae" >> DISK="/lhome/priyamvad/debian_qemu_arm32/hda30.qcow2" >> >> ./qemu-system-arm \ >> -M virt \ >> -m 1024 \ >> -smp 4 \ >> -kernel $KERNEL \ >> -object rng-random,filename=/dev/urandom,id=rng0 \ >> -device virtio-rng-device,rng=rng0 \ >> -initrd $INIT_IMAGE \ >> -append 'root=/dev/vda2' \ >> -drive if=none,file=$DISK,format=qcow2,id=hd \ >> -device pl061 \ >> -device virtio-blk-device,drive=hd \ >> -device virtio-net-device,netdev=usernet \ >> -netdev user,id=usernet,hostfwd=tcp::2222-:22 \ >> -nographic >> > > Is the above script correct to boot linux image with pl061 device on > virt board? > > On Fri, 8 May 2020 at 02:32, John Snow <js...@redhat.com> wrote: > >> >> >> On 5/6/20 8:56 AM, Priyamvad Acharya wrote: >> > >> > Hello developer community, >> > I want to allow a *sysbus *type device to boot with kernel image(arm >> > architecture) via Qemu command line . >> > >> > When I run qemu arm system executable with *-device *option via qemu >> > command line,I get following error message >> > >> >> qemu-system-arm: -device pl061: Parameter 'driver' expects pluggable >> > device type >> > >> > So, how to allow a sysbus device via command line? >> > Is there any working patch? >> >> Hi, it looks like the pl061 device is not declared "user creatable" so >> it is unavailable from the CLI. As a sysbus device, QEMU is not aware, >> in the abstract, of how to "connect" the device to other devices. >> >> See the sysbus class initialization code for more detail: >> https://github.com/qemu/qemu/blob/master/hw/core/sysbus.c#L301 >> >> >> However, It looks like these boards/devices create such a device: >> >> hw/arm/highbank >> hw/arm/realview >> hw/arm/sbsa-ref >> hw/arm/stellaris >> hw/arm/versatilepb >> hw/arm/virt >> >> If you want one on some other kind of machine, you'll need to write it >> up yourself in the machine board code, but you didn't tell us what >> version of QEMU you're using, what machine type you are trying to use, >> etc. >> >> --js >> >>
