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|
#!/bin/bash
platformconfig=$(dirname $0)/platformconfig
#
# we need information about the platform
#
if [ ! -e "$platformconfig" ]; then
echo "error: ${platformconfig} does not exist"
exit 1
fi
source $platformconfig
if [ -n "${PTXCONF_PLATFORM}" ]; then
PTXDIST_PLATFORMDIR="./platform-${PTXCONF_PLATFORM}"
else
PTXDIST_PLATFORMDIR="."
fi
if [ ! -e "${PTXDIST_PLATFORMDIR}/images/vmlinuz-malta" ]; then
echo "error: run 'ptxdist go' first"
exit 1
fi
# the emulator to run
QEMU_EXEC="${PTXDIST_PLATFORMDIR}/sysroot-host/bin/qemu-system-mipsel"
if [ ! -e "${QEMU_EXEC}" ]; then
echo "error: enable and install 'host-qemu' first"
exit 1
fi
# the port to which an sshd would connect (in the emulated system)
SSH_INTERNAL_PORT=22
# the port which QEMU opens at the host side to give access to the ${SSH_INTERNAL_PORT}
SSH_EXTERNAL_PORT=${QEMU_SSH_PORT:-$((PPID%64000+1025))}
# check if vde is available for networking
if [ -z "${VDE_SOCKET}" ]; then
for dir in $(ls -d /var/run/vde2/*.ctl 2>/dev/null); do
if [ -r "${dir}" ]; then
VDE_SOCKET="${dir}"
fi
done
fi
if [ -n "${VDE_SOCKET}" ]; then
# make sure qemu supports vde networking
if ${QEMU_EXEC} --help | grep -q -- '-net.*vde'; then
QEMU_NET=( -netdev vde,id=net1,sock=${VDE_SOCKET} )
fi
fi
# fall back to user network if necessary
if [ -z "${QEMU_NET}" ]; then
QEMU_NET=(-netdev user,id=net1,hostfwd=tcp:127.0.0.1:${SSH_EXTERNAL_PORT}-:${SSH_INTERNAL_PORT},hostfwd=tcp:127.0.0.1:12345-:12345)
echo "Forwarding SSH port 127.0.0.1:${SSH_EXTERNAL_PORT} -> qemu:${SSH_INTERNAL_PORT}"
fi
BASE_CMDLINE="console=ttyS0,115200"
# Machine to emulate
QEMU_ARGS=( -M malta -m 256 -serial stdio -monitor null -device qemu-xhci,id=xhci)
# disable graphics output
QEMU_ARGS[${#QEMU_ARGS[@]}]="-nographic"
# Exit qemu on reboot
QEMU_ARGS[${#QEMU_ARGS[@]}]="-no-reboot"
# Configure networking
QEMU_ARGS=( "${QEMU_ARGS[@]}" -net nic,netdev=net1 "${QEMU_NET[@]}" )
# Set base time to test NTP and time handling
QEMU_ARGS=( "${QEMU_ARGS[@]}" -rtc base=2021-01-01 )
QEMU_LINUX_ARGS=( -kernel ${PTXDIST_PLATFORMDIR}/images/vmlinuz-malta -dtb ${PTXDIST_PLATFORMDIR}/images/qemu-malta.dtb-bb )
# the barebox device tree has a state node for bootchooser
QEMU_BAREBOX_ARGS=( -bios ${PTXDIST_PLATFORMDIR}/images/barebox-qemu-malta.img )
check_hd() {
if [ ! -e "${PTXDIST_PLATFORMDIR}/images/malta.hdimg" ]; then
echo "error: malta.hdimg is missing. Run 'ptxdist images' first"
exit 1
fi
}
run_qemu_nfs() {
exec ${QEMU_EXEC} \
"${QEMU_ARGS[@]}" \
"${QEMU_EXTRA_ARGS[@]}" \
"${QEMU_LINUX_ARGS[@]}" \
-append "root=/dev/nfs nfsroot=/root,v3,tcp,port=2049,mountport=2049 ip=dhcp ${BASE_CMDLINE}"
}
run_qemu_hda() {
check_hd
exec ${QEMU_EXEC} \
"${QEMU_ARGS[@]}" \
-drive file=${PTXDIST_PLATFORMDIR}/images/malta.hdimg,index=0,media=disk,format=raw \
"${QEMU_EXTRA_ARGS[@]}" \
"${QEMU_LINUX_ARGS[@]}" \
-append "root=/dev/sda1 rootfstype=ext4 rootwait ${BASE_CMDLINE}"
}
run_qemu_barebox() {
check_hd
exec ${QEMU_EXEC} \
"${QEMU_ARGS[@]}" \
"${QEMU_EXTRA_ARGS[@]}" \
"${QEMU_BAREBOX_ARGS[@]}"
}
target="${1:-hda}"
#set -x
run_qemu_${target}
|
