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#!/bin/sh
XLEN=$(echo "$1" | cut -c '6-7')
if [ ! -e fs ]; then
mkdir fs
fi
if [ ! -e rootfs.img ]; then
virt-make-fs --partition=mbr --type=vfat --size=10M fs rootfs.img
fi
SSIZE=$(fdisk -l rootfs.img | awk '$1=="Units:" {print $8}')
OFFSET=$(fdisk -l rootfs.img | awk '$1=="rootfs.img1" {print $2}')
mount -o loop,offset=$((${SSIZE}*${OFFSET})) rootfs.img fs
# copy over files outside the .itb to mess around with manual booting
cp kmi.bin fs
cp arch/riscv64/conf/initrd fs
# not entirely pleased with this solution, although eventually I should probably
# move `run` out of the kernel repo and into some `kmios` repo with a runtime
# and proper initrd etc. so this is good enough for now
../rv${XLEN}/u-boot-kmi/tools/mkimage -f arch/riscv${XLEN}/conf/kmi.its fs/kmi.itb
../rv${XLEN}/u-boot-kmi/tools/mkimage -A riscv -O kmi -T script \
-d arch/riscv64/conf/boot.cmd fs/boot.scr
umount -l fs
qemu-system-riscv${XLEN} \
-machine virt \
-kernel ../rv${XLEN}/u-boot-kmi/u-boot \
-bios ../rv${XLEN}/opensbi/build/platform/generic/firmware/fw_jump.elf \
-device virtio-blk-device,drive=hd0 \
-drive file=rootfs.img,format=raw,id=hd0 \
-icount 0 \
-S -s -m 2G \
-serial stdio
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