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96 lines
2.8 KiB
96 lines
2.8 KiB
#!/bin/sh
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GIB_IN_BYTES="1073741824"
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target="${1:-pi1}"
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image_path="/sdcard/filesystem.img"
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zip_path="/filesystem.zip"
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if [ ! -e $image_path ]; then
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echo "No filesystem detected at ${image_path}!"
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if [ -e $zip_path ]; then
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echo "Extracting fresh filesystem..."
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unzip $zip_path
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mv -- *.img $image_path
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else
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exit 1
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fi
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fi
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qemu-img info $image_path
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image_size_in_bytes=$(qemu-img info --output json $image_path | grep "virtual-size" | awk '{print $2}' | sed 's/,//')
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if [[ "$(($image_size_in_bytes % ($GIB_IN_BYTES * 2)))" != "0" ]]; then
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new_size_in_gib=$((($image_size_in_bytes / ($GIB_IN_BYTES * 2) + 1) * 2))
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echo "Rounding image size up to ${new_size_in_gib}GiB so it's a multiple of 2GiB..."
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qemu-img resize $image_path "${new_size_in_gib}G"
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fi
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if [ "${target}" = "pi1" ]; then
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emulator=qemu-system-arm
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kernel="/root/qemu-rpi-kernel/kernel-qemu-4.19.50-buster"
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dtb="/root/qemu-rpi-kernel/versatile-pb.dtb"
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machine=versatilepb
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memory=256m
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root=/dev/sda2
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nic="--net nic --net user,hostfwd=tcp::5022-:22"
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elif [ "${target}" = "pi2" ]; then
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emulator=qemu-system-arm
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machine=raspi2b
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memory=1024m
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kernel_pattern=kernel7.img
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dtb_pattern=bcm2709-rpi-2-b.dtb
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append="dwc_otg.fiq_fsm_enable=0"
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nic="-netdev user,id=net0,hostfwd=tcp::5022-:22 -device usb-net,netdev=net0"
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elif [ "${target}" = "pi3" ]; then
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emulator=qemu-system-aarch64
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machine=raspi3b
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memory=1024m
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kernel_pattern=kernel8.img
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dtb_pattern=bcm2710-rpi-3-b-plus.dtb
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append="dwc_otg.fiq_fsm_enable=0"
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nic="-netdev user,id=net0,hostfwd=tcp::5022-:22 -device usb-net,netdev=net0"
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else
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echo "Target ${target} not supported"
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echo "Supported targets: pi1 pi2 pi3"
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exit 2
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fi
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if [ "${kernel_pattern}" ] && [ "${dtb_pattern}" ]; then
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fat_path="/fat.img"
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echo "Extracting partitions"
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fdisk -l ${image_path} \
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| awk "/^[^ ]*1/{print \"dd if=${image_path} of=${fat_path} bs=512 skip=\"\$4\" count=\"\$6}" \
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| sh
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echo "Extracting boot filesystem"
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fat_folder="/fat"
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mkdir -p "${fat_folder}"
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fatcat -x "${fat_folder}" "${fat_path}"
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root=/dev/mmcblk0p2
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echo "Searching for kernel='${kernel_pattern}'"
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kernel=$(find "${fat_folder}" -name "${kernel_pattern}")
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echo "Searching for dtb='${dtb_pattern}'"
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dtb=$(find "${fat_folder}" -name "${dtb_pattern}")
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fi
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if [ "${kernel}" = "" ] || [ "${dtb}" = "" ]; then
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echo "Missing kernel='${kernel}' or dtb='${dtb}'"
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exit 2
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fi
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echo "Booting QEMU machine \"${machine}\" with kernel=${kernel} dtb=${dtb}"
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exec ${emulator} \
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--machine "${machine}" \
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--cpu arm1176 \
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--m "${memory}" \
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--drive "format=raw,file=${image_path}" \
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${nic} \
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--dtb "${dtb}" \
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--kernel "${kernel}" \
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--append "rw earlyprintk loglevel=8 console=ttyAMA0,115200 dwc_otg.lpm_enable=0 root=${root} rootwait panic=1 ${append}" \
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--no-reboot \
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--display none \
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--serial mon:stdio
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