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1 files changed, 52 insertions, 0 deletions

diff --git a/vm/arch-armv7.sh b/vm/arch-armv7.sh
new file mode 100644
index 0000000..41b3a1a
--- /dev/null
+++ b/vm/arch-armv7.sh
@@ -0,0 +1,52 @@
+: ${VM_CACHE:?} ${VM_DATA:?} ${VM_TMP:?}
+
+arch_url=http://os.archlinuxarm.org/os/ArchLinuxARM-armv7-latest.tar.gz
+
+arch_path=$VM_CACHE/$(basename -- "$arch_url")
+kernel_path=$VM_CACHE/zImage
+initrd_path=$VM_CACHE/initramfs-linux.img
+
+image_path=$VM_DATA/image
+
+
+if [ ! -f $arch_path ]; then
+    curl -L -o $arch_path $arch_url
+fi
+
+if [ ! -f $kernel_path ]; then
+    bsdtar -x -f $arch_path -C $(dirname $kernel_path) \
+        --strip-components=2 ./boot/$(basename $kernel_path)
+fi
+
+if [ ! -f $initrd_path ]; then
+    bsdtar -x -f $arch_path -C $(dirname $initrd_path) \
+        --strip-components=2 ./boot/$(basename $initrd_path)
+fi
+
+if [ ! -f $image_path ]; then
+    truncate -s 2G $image_path
+    mkfs.ext4 -q $image_path
+    mkdir -p $VM_TMP/mnt
+    doas mount -o loop $image_path $VM_TMP/mnt
+    doas bsdtar -xpf $arch_path -C $VM_TMP/mnt
+    doas umount $VM_TMP/mnt
+    rmdir $VM_TMP/mnt
+fi
+
+exec qemu-system-arm \
+    -machine virt \
+    -cpu cortex-a15 \
+    -m 2G \
+    -kernel $kernel_path \
+    -initrd $initrd_path \
+    -append "root=/dev/sda rw" \
+    -drive if=none,file=$image_path,format=raw,id=drive0 \
+    -netdev user,id=netdev0 \
+    -device virtio-scsi-pci,id=scsi \
+    -device virtio-blk-pci,drive=drive0 \
+    -device virtio-net-pci,netdev=netdev0 \
+    -nographic \
+    "$@"
+
+
+