liminix/pkgs/mips-vm/mips-vm.sh
2023-04-15 17:22:35 +01:00

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#!/usr/bin/env bash
cleanup(){
test -n "$rootfs" && test -f $rootfs && rm $rootfs
}
trap 'exit 1' INT HUP QUIT TERM ALRM USR1
trap 'cleanup' EXIT
usage(){
echo "usage: $(basename $0) [--background /path/to/state_directory] kernel rootimg [initramfs]"
echo -e "\nWithout --background, use C-p c (not C-a c) to switch to the monitor"
exit 1
}
if test "$1" = "--background" ; then
statedir=$2
if test -z "$statedir" || ! test -d $statedir ; then
usage
fi
pid="${statedir}/pid"
socket="${statedir}/console"
monitor="${statedir}/monitor"
echo "running in background, socket is $socket, pid $pid"
flags="--daemonize --pidfile $pid -serial unix:$socket,server,nowait -monitor unix:$monitor,server,nowait"
shift;shift
else
flags="-serial mon:stdio"
fi
test -n "$2" || usage
rootfs=$(mktemp mips-vm-fs-XXXXXX)
dd if=/dev/zero of=$rootfs bs=1M count=16 conv=sync
dd if=$2 of=$rootfs bs=65536 conv=sync,nocreat,notrunc
if test -n "$3"; then
initramfs="-initrd $3"
fi
INIT=${INIT-/bin/init}
echo $QEMU_OPTIONS
qemu-system-mips \
-M malta -m 256 \
-echr 16 \
-append "liminix default console=ttyS0,38400n8 panic=10 oops=panic init=$INIT loglevel=8 root=/dev/mtdblock0 block2mtd.block2mtd=/dev/vda,65536" \
-drive file=$rootfs,format=raw,readonly=off,if=virtio,index=0 \
${initramfs} \
-netdev socket,id=access,mcast=230.0.0.1:1234,localaddr=127.0.0.1 \
-device virtio-net-pci,disable-legacy=on,disable-modern=off,netdev=access,mac=ba:ad:1d:ea:21:02 \
-netdev socket,id=lan,mcast=230.0.0.1:1235,localaddr=127.0.0.1 \
-device virtio-net-pci,disable-legacy=on,disable-modern=off,netdev=lan,mac=ba:ad:1d:ea:21:01 \
-kernel $1 -display none $flags ${QEMU_OPTIONS}