78 lines
2 KiB
Bash
Executable file
78 lines
2 KiB
Bash
Executable file
#!/usr/bin/env bash
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cleanup(){
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test -n "$rootfs" && test -f $rootfs && rm $rootfs
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}
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trap 'exit 1' INT HUP QUIT TERM ALRM USR1
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trap 'cleanup' EXIT
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usage(){
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echo "usage: $(basename $0) [--background /path/to/state_directory] kernel rootimg [initramfs]"
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echo -e "\nWithout --background, use C-p c (not C-a c) to switch to the monitor"
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exit 1
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}
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arch="mips"
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if test "$1" = "--arch" ; then
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arch=$2
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shift;shift
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fi
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if test "$1" = "--background" ; then
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statedir=$2
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if test -z "$statedir" || ! test -d $statedir ; then
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usage
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fi
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pid="${statedir}/pid"
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socket="${statedir}/console"
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monitor="${statedir}/monitor"
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echo "running in background, socket is $socket, pid $pid"
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flags="--daemonize --pidfile $pid -serial unix:$socket,server,nowait -monitor unix:$monitor,server,nowait"
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shift;shift
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else
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flags="-serial mon:stdio"
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fi
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test -n "$2" || usage
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lan=${LAN-"socket,mcast=230.0.0.1:1235,localaddr=127.0.0.1"}
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rootfs=$(mktemp run-liminix-vm-fs-XXXXXX)
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dd if=/dev/zero of=$rootfs bs=1M count=16 conv=sync
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dd if=$2 of=$rootfs bs=65536 conv=sync,nocreat,notrunc
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if test -n "$3"; then
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initramfs="-initrd $3"
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fi
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case "$arch" in
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mips)
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QEMU="qemu-system-mips -M malta"
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;;
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aarch64)
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QEMU="qemu-system-aarch64 -M virt -semihosting -cpu cortex-a72"
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;;
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arm)
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# https://bugs.launchpad.net/qemu/+bug/1790975
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QEMU="qemu-system-arm -M virt,highmem=off -cpu cortex-a15"
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;;
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*)
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echo "unrecognised arch $arch"
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exit 1;
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;;
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esac
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phram="mtdparts=phram0:16M(rootfs) phram.phram=phram0,${PHRAM_ADDRESS},16Mi,65536 root=/dev/mtdblock0";
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set -x
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$QEMU \
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-m 272 \
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-echr 16 \
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-append "$CMDLINE liminix $phram" \
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-device loader,file=$rootfs,addr=$PHRAM_ADDRESS \
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${initramfs} \
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-netdev socket,id=access,mcast=230.0.0.1:1234,localaddr=127.0.0.1 \
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-device virtio-net,disable-legacy=on,disable-modern=off,netdev=access,mac=ba:ad:1d:ea:21:02 \
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-netdev ${lan},id=lan \
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-device virtio-net,disable-legacy=on,disable-modern=off,netdev=lan,mac=ba:ad:1d:ea:21:01 \
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-kernel $1 -display none $flags ${QEMU_OPTIONS}
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