1 files changed, 87 insertions, 0 deletions

diff --git a/scripts/boot-image.sh b/scripts/boot-image.sh
new file mode 100755
index 0000000..913e5cb
--- /dev/null
+++ b/scripts/boot-image.sh
@@ -0,0 +1,87 @@
+#!/usr/bin/env bash
+#
+# scripts/boot-image.sh — boot rs-dos full chain disk image in QEMU
+#
+# Builds the image first if needed, then boots with UEFI firmware through
+# the real boot chain: firmware → rsboot → rsnix kernel.
+#
+# Usage:
+#   ./scripts/boot-image.sh [--gui] [--debug] [--mem 512M] [--smp 2]
+#
+# Keybindings:
+#   Ctrl-A X   — quit
+#   Ctrl-A C   — QEMU monitor
+#
+# Environment:
+#   OVMF    path to OVMF firmware (default: /usr/share/edk2/x64/OVMF.4m.fd)
+#   MEM     memory size (default: 256M)
+#   SMP     CPU count (default: 1)
+#
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
+
+cd "$PROJECT_DIR"
+
+IMAGE="rs-dos.img"
+
+# ---- config ----
+OVMF="${OVMF:-/usr/share/edk2/x64/OVMF.4m.fd}"
+MEM="${MEM:-256M}"
+SMP="${SMP:-1}"
+GUI=""
+DEBUG=""
+
+# ---- args ----
+while [ $# -gt 0 ]; do
+        case "$1" in
+        --gui | -g) GUI="-vga std" ;;
+        --debug | -d) DEBUG="-s -S" ;;
+        --mem)
+                shift
+                MEM="$1"
+                ;;
+        --smp)
+                shift
+                SMP="$1"
+                ;;
+        --help | -h)
+                head -20 "$0" | grep "^#" | sed 's/^# //'
+                exit 0
+                ;;
+        *)
+                echo "unknown: $1"
+                exit 1
+                ;;
+        esac
+        shift
+done
+
+# ---- build image if missing ----
+if [ ! -f "$IMAGE" ]; then
+        echo "Image not found, building..."
+        "$SCRIPT_DIR/build-image.sh"
+fi
+
+# ---- boot ----
+echo ""
+echo "=== Booting (full chain: firmware → rsboot → rsnix) ==="
+echo "  image:  $IMAGE"
+echo "  ovmf:   $OVMF"
+echo "  mem:    $MEM   smp: $SMP"
+echo "  gui:    $([ -n "$GUI" ] && echo yes || echo no)"
+echo "  gdb:    $([ -n "$DEBUG" ] && echo ':1234' || echo off)"
+echo ""
+
+exec qemu-system-x86_64 \
+        -bios "$OVMF" \
+        -drive file="$IMAGE",format=raw,if=none,id=hd \
+        -device ide-hd,drive=hd \
+        -serial stdio \
+        -m "$MEM" \
+        -machine q35 \
+        -cpu qemu64 \
+        -no-reboot \
+        -smp "$SMP" \
+        $GUI $DEBUG