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|
#!/usr/bin/env bash
# =============================================================================
# tools/qemu.sh — Run raisernics in QEMU with various options
#
# Usage:
# ./tools/qemu.sh # serial console (no graphics)
# ./tools/qemu.sh --gui # graphical window
# ./tools/qemu.sh --debug # GDB stub on :1234
# ./tools/qemu.sh --image foo.img # boot from raw disk image
# ./tools/qemu.sh --bios /path/to.fd # custom OVMF
# ./tools/qemu.sh --mem 512M # memory size
# ./tools/qemu.sh --smp 2 # SMP cores
# =============================================================================
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
cd "$SCRIPT_DIR"
# Defaults
GUI_FLAG=""
DEBUG_FLAG=""
DRIVE_ARGS=(-drive file=fat:rw:esp,format=raw)
OVMF="${OVMF:-/usr/share/edk2/x64/OVMF.4m.fd}"
MEM="${MEM:-256M}"
SMP="${SMP:-1}"
# Pre-build
make all
# Parse args
while [ $# -gt 0 ]; do
case "$1" in
--gui | -g)
GUI_FLAG="-vga std"
shift
;;
--debug | -d)
DEBUG_FLAG="-s -S"
shift
;;
--image | -i)
_img_file="$(printf -- '-drive file=%s,format=raw,if=none,id=hd' "$2")"
# Explicit buses: data disk -> ide.0 (port 0), ESP -> ide.1.
DRIVE_ARGS=("$_img_file" '-device' 'ide-hd,drive=hd,bus=ide.0' \
'-drive' 'file=fat:rw:esp,format=raw,if=none,id=esp' \
'-device' 'ide-hd,drive=esp,bus=ide.1')
shift 2
;;
--bios | -b)
OVMF="$2"
shift 2
;;
--mem)
MEM="$2"
shift 2
;;
--smp)
SMP="$2"
shift 2
;;
--help | -h)
head -20 "$0" | grep "^# " | sed 's/^# //'
exit 0
;;
*)
echo "Unknown option: $1"
exit 1
;;
esac
done
QEMU_CMD=(
qemu-system-x86_64
-bios "$OVMF"
"${DRIVE_ARGS[@]}"
-serial stdio
-m "$MEM"
-machine q35
-cpu qemu64
-no-reboot
-smp "$SMP"
)
[ -n "$GUI_FLAG" ] && QEMU_CMD+=("$GUI_FLAG")
if [ -n "$DEBUG_FLAG" ]; then
# Split the flag string safely into words
read -ra dbg <<<"$DEBUG_FLAG"
QEMU_CMD+=("${dbg[@]}")
fi
echo " OVMF : $OVMF"
echo " Drive : ${DRIVE_ARGS[*]}"
echo " Mem : $MEM"
echo " SMP : $SMP"
echo " GDB : $([ -n "$DEBUG_FLAG" ] && echo ':1234' || echo 'off')"
echo " GUI : $([ -n "$GUI_FLAG" ] && echo 'yes' || echo 'no')"
echo ""
exec "${QEMU_CMD[@]}"
|
