Unable to run properly in MacBook m1

[MrZLeo]

I download the necessary dependencies and type make qemu in xv6's directory, it seems some troubles happened:

qemu-system-riscv64 -machine virt -bios none -kernel kernel/kernel -m 128M -smp 3 -nographic -drive file=fs.img,if=none,format=raw,id=x0 -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied
qemu-system-riscv64: qemu_mprotect__osdep: mprotect failed: Permission denied

I don't know what does it means and how to solve it. But it seems I have to exit it by ctrl + A + x rather than ctrl + c, which indicates that the problem may come from qemu.

My device:

MacBook Pro m1,
macOS 11.4,
qemu 6.0,
riscv64-unknown-elf-gcc (GCC) 10.2.0

[MrZLeo]

And I have tried sudo make qemu as well, it did not work.

[TrenDavi]

I am running Qemu on a M1 too. Ending up having the exact same error when trying to boot. :(

[knightsc]

The comments on this thread make it sound like Qemu was patched in May to address this issue.

https://bugs.launchpad.net/qemu/+bug/1914849

Perhaps try using Qemu 6.1.0

[tresf]

I'm not sure if this is the right place to post this, but at time of writing this, homebrew has qemu 7.2.0, which works pretty well with riscv.

Command:

qemu-system-riscv64 \
    -machine virt \
    -cpu rv64 \
    -m 4G \
    -device virtio-blk-device,drive=hd \
    -drive file=overlay.qcow2,if=none,id=hd \
    -device virtio-net-device,netdev=net \
    -netdev user,id=net,hostfwd=tcp::2222-:22 \
    -kernel ./u-boot-qemu/uboot.elf \ # extracted from u-boot-qemu_2021.01+dfsg-5_all.deb
    -object rng-random,filename=/dev/urandom,id=rng \
    -device virtio-rng-device,rng=rng \
    -append "root=LABEL=rootfs console=ttyS0" \
    -nographic

[MrZLeo]

@tresf Yes, it works now. It has been supported by qemu right now : )