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#!/bin/bash
platformconfig=selected_platformconfig
# fallback to platformconfig in the same dir as this script
if [ ! -e "$platformconfig" ]; then
platformconfig=$(dirname $0)/platformconfig
fi
#
# we need information about the platform
#
if [ ! -e "$platformconfig" ]; then
echo "error: selected_platformconfig does not exist"
echo " please use 'ptxdist platform ...' or 'ptxdist --platformconfig=...'"
exit 1
fi
source $platformconfig
if [ -n "${PTXCONF_PLATFORM}" ]; then
PTXDIST_PLATFORMDIR="./platform-${PTXCONF_PLATFORM}"
else
PTXDIST_PLATFORMDIR="."
fi
if [ ! -e "${PTXDIST_PLATFORMDIR}/images/linuximage" ]; then
echo "error: run 'ptxdist go' first"
exit 1
fi
# the emulator to run
QEMU_EXEC="${PTXDIST_PLATFORMDIR}/sysroot-host/bin/qemu-system-x86_64"
if [ ! -e "${QEMU_EXEC}" ]; then
echo "error: enable and install 'host-qemu' first"
exit 1
fi
# the port a 'telned' would connect to (in the emulated sysem)
TELNET_INTERNAL_PORT=23
# port QEMU opens at the host side to give access to the ${TELNET_INTERNAL_PORT}
TELNET_EXTERNAL_PORT=4444
# dito for ssh
SSH_INTERNAL_PORT=22
SSH_EXTERNAL_PORT=4445
# check if vde is available for networking
if [ -z "${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 "${QEMU_NET}" ]; then
QEMU_NET=(-netdev user,id=net1,hostfwd=tcp:127.0.0.1:${TELNET_EXTERNAL_PORT}-:${TELNET_INTERNAL_PORT},hostfwd=tcp:127.0.0.1:${SSH_EXTERNAL_PORT}-:${SSH_INTERNAL_PORT} )
fi
BASE_CMDLINE="console=ttyS0,115200 loglevel=5 systemd.log_level=warning systemd.show_status=auto"
# Machine to emulate
QEMU_ARGS=( -L ${PTXDIST_PLATFORMDIR}/sysroot-host/share/qemu/ -machine pc-q35-2.12 -smp 2 -cpu host -accel kvm -m 1G -s )
# disable graphics output
QEMU_ARGS[${#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=2000-01-01 )
QEMU_LINUX_ARGS=( -kernel ${PTXDIST_PLATFORMDIR}/images/linuximage )
check_hd() {
if [ ! -e "${PTXDIST_PLATFORMDIR}/images/root.ext2" ]; then
echo "error: root.ext2 is missing. Run 'ptxdist images' first"
exit 1
fi
}
run_qemu_hda() {
check_hd
exec ${QEMU_EXEC} \
"${QEMU_ARGS[@]}" \
-drive file=${PTXDIST_PLATFORMDIR}/images/root.ext2,if=virtio,format=raw \
"${QEMU_EXTRA_ARGS[@]}" \
"${QEMU_LINUX_ARGS[@]}" \
-append "root=/dev/vda console=ttyS0,115200 rw ${BASE_CMDLINE}"
}
target="${1:-hda}"
#set -x
run_qemu_${target}
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