系列文章 : 資訊工程自學筆記

這一篇是希望，可以在 QEMU 上運行 arm64 的 linux kernel。

Build QEMU

# Clone the QEMU repository
git clone git@github.com:qemu/qemu.git 
cd qemu 
git checkout v10.0.0


python -m venv ./my-venv
source ./my-venv/bin/activate
pip install --upgrade setuptools
pip install --upgrade distlib

# Configure and build QEMU for riscv64
./configure --target-list=aarch64-softmmu     

make -j$(nproc)

deactivate
cd ..

Build buildroot

git clone git@github.com:buildroot/buildroot.git
cd buildroot
git checkout 56c6862bc81ef41c0fe012677eafa24381b1f76c

# use default configuration for RISC-V 64-bit virt QEMU/gem5
make qemu_aarch64_virt_defconfig

sed -i 's/^BR2_TARGET_ROOTFS_EXT2_2=y/# BR2_TARGET_ROOTFS_EXT2_2 is not set/' .config

sed -i 's/.*BR2_TARGET_ROOTFS_EXT2_4.*/BR2_TARGET_ROOTFS_EXT2_4=y/' .config

make olddefconfig

make -j$(nproc)

Build linux kernel

git clone --depth 1 -b v6.8 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
cd linux

# generate default RISC-V configuration
make ARCH=arm64 CROSS_COMPILE=$(realpath ../buildroot/output/host/bin)/aarch64-linux- defconfig

# Compile both the vmlinux ELF (needed for debugging) and the Image (used as payload)
make ARCH=arm64 CROSS_COMPILE=$(realpath ../buildroot/output/host/bin)/aarch64-linux- vmlinux Image -j$(nproc)

Run Simulation

./qemu/build/qemu-system-aarch64 \
     -M virt \
     -cpu cortex-a53 \
     -nographic \
     -smp 2 \
     -m 1024 \
     -kernel ./linux/arch/arm64/boot/Image \
     -append "root=/dev/vda rw console=ttyAMA0" \
     -drive if=none,file=./buildroot/output/images/rootfs.ext4,format=raw,id=hd0 \
     -device virtio-blk-device,drive=hd0

整理成 Makefile

git clone git@github.com:TommyWu-fdgkhdkgh/qemu-boot-arm-linux.git
cd qemu-boot-arm-linux

make buildroot/build

make linux/build

make qemu/build

make qemu/run