Files
bfe-core1106-sdk/qemu/run.sh
T
NoahandClaude Fable 5.1 eb16a301c0 qemu: wake verb, idle stat, and no fbcon cursor in the framebuffer
- tests/qmp.py: `wake` is a judged verb (the reply must be the channel's
  own ack) and `assert_stat` knows `idle` (0 awake, 1 dimmed, 2 asleep).
  warden-ui's sleep.c swallows the touch that wakes a dimmed or blanked
  panel, so every compiled flow script now opens with wake (flare-edge
  #148); tests cover both.
- run.sh: vt.global_cursor_default=0. fbcon shares the virtio-gpu
  framebuffer with warden-ui and its cursor blinked an 8x2 block onto the
  top-left corner in some boots and not others, which made a structural
  pixel reference fail by one cell (#18). The panel has no fbcon on its
  display, so this only makes the rig match it.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013aHKWzT5EF86RFKRMtAv9n
2026-09-07 23:39:07 -06:00

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#!/usr/bin/env bash
# Launch the WardenOS device VM (qemu-system-arm -M virt, single Cortex-A7,
# 256M: the RV1106G3's shape). See qemu/README.md for what this does and does
# not emulate.
#
# Usage: run.sh --kernel <zImage> [options] [-- <extra qemu args>]
# --kernel PATH zImage (canonical or virt.fragment variant)
# --initrd PATH initramfs (default: qemu/out/initramfs.cpio.gz)
# --disk PATH virtio disk image from mkimage.sh (default: qemu/out/disk.img
# when present; pass --no-disk for a diskless initramfs boot)
# --no-disk boot without a disk (initramfs shell/smoke behavior)
# --slot _a|_b rootfs slot to boot (default _a)
# --rtc DATE guest RTC base, e.g. 2021-01-01: reproduces the no-RTC
# "device boots believing 2021" incident class
# --rs485 SOCK unix socket chardev for the RS485/Modbus bridge
# (pci-serial: needs the virt.fragment kernel)
# --ctl SOCK unix socket to warden-ui's debug channel (nav/page/hit),
# bridged by init from a pci-serial port; the rig-side
# twin of tools/warden-ctl over SSH on a real panel
# --watchdog add i6300esb watchdog, reset on expiry (fragment kernel)
# --qmp SOCK QMP unix socket (screendump, input-send-event, quit)
# --display MODE off (default, -nographic) | on (gtk window) | headless
# (virtio-gpu without a window; screendump via --qmp)
# --ssh-port N hostfwd 127.0.0.1:N -> guest :22 (default 2222; 0 disables)
# --http-port N hostfwd 127.0.0.1:N -> guest :80 (default 8080; 0 disables)
# --api-port N hostfwd 127.0.0.1:N -> guest :28443 (default 28443; 0 disables)
# --shell interactive shell in the guest instead of daemon hold
# --allow-apply let flared ACTUALLY apply OTA firmware (writes rootfs_b
# inside disk.img, safe in the VM, never the default)
set -euo pipefail
QEMU_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=qemu/blkdevparts.conf disable=SC1091
. "$QEMU_DIR/blkdevparts.conf"
OUT="${OUT:-$QEMU_DIR/out}"
KERNEL="" INITRD="$OUT/initramfs.cpio.gz" DISK="" NO_DISK=0 SLOT="_a"
RTC="" RS485="" CTL="" WATCHDOG=0 QMP="" DISPLAY_MODE="off" SHELL_FLAG=0 ALLOW_APPLY=0
SSH_PORT=2222 HTTP_PORT=8080 API_PORT=28443
EXTRA=()
while [ $# -gt 0 ]; do
case "$1" in
--kernel) KERNEL="${2:?}"; shift 2 ;;
--initrd) INITRD="${2:?}"; shift 2 ;;
--disk) DISK="${2:?}"; shift 2 ;;
--no-disk) NO_DISK=1; shift ;;
--slot) SLOT="${2:?}"; shift 2 ;;
--rtc) RTC="${2:?}"; shift 2 ;;
--rs485) RS485="${2:?}"; shift 2 ;;
--ctl) CTL="${2:?}"; shift 2 ;;
--watchdog) WATCHDOG=1; shift ;;
--qmp) QMP="${2:?}"; shift 2 ;;
--display) DISPLAY_MODE="${2:?}"; shift 2 ;;
--ssh-port) SSH_PORT="${2:?}"; shift 2 ;;
--http-port) HTTP_PORT="${2:?}"; shift 2 ;;
--api-port) API_PORT="${2:?}"; shift 2 ;;
--shell) SHELL_FLAG=1; shift ;;
--allow-apply) ALLOW_APPLY=1; shift ;;
--) shift; EXTRA=("$@"); break ;;
*) echo "FATAL: unknown argument '$1' (see header of $0)" >&2; exit 1 ;;
esac
done
if [ -z "$KERNEL" ] || [ ! -f "$KERNEL" ]; then
echo "FATAL: --kernel <zImage> required and must exist (got '${KERNEL:-}')" >&2
exit 1
fi
[ -f "$INITRD" ] || {
echo "FATAL: initramfs not found at $INITRD: run qemu/mkinitramfs.sh" >&2
exit 1
}
case "$SLOT" in _a|_b) ;; *) echo "FATAL: --slot must be _a or _b" >&2; exit 1 ;; esac
if [ "$NO_DISK" -eq 0 ] && [ -z "$DISK" ] && [ -f "$OUT/disk.img" ]; then
DISK="$OUT/disk.img"
fi
if [ -n "$DISK" ] && [ ! -f "$DISK" ]; then
echo "FATAL: disk image $DISK not found: run qemu/mkimage.sh (or pass --no-disk)" >&2
exit 1
fi
# NOTE: never add `earlyprintk`: the config's DEBUG_UART_PHYS is the RV1106's
# 0xff4c0000, which does not exist on -M virt.
# vt.global_cursor_default=0: the virt kernel binds fbcon to the virtio-gpu
# framebuffer, and its blinking cursor lands on /dev/fb0 under warden-ui (an
# 8x2 block at the top-left, present in one boot and absent in the next). The
# panel has no fbcon on its display, and a pixel reference captured with the
# cursor in frame fails without it (issue #18).
APPEND="console=ttyAMA0 rdinit=/init vt.global_cursor_default=0"
# Port 0 disables a forward. A boot smoke needs no host ports and must not
# fail on a busy default port.
NETDEV="user,id=n0"
[ "$SSH_PORT" != 0 ] && NETDEV="$NETDEV,hostfwd=tcp:127.0.0.1:${SSH_PORT}-:22"
[ "$HTTP_PORT" != 0 ] && NETDEV="$NETDEV,hostfwd=tcp:127.0.0.1:${HTTP_PORT}-:80"
[ "$API_PORT" != 0 ] && NETDEV="$NETDEV,hostfwd=tcp:127.0.0.1:${API_PORT}-:28443"
ARGS=(
-M "virt,highmem=off" -cpu cortex-a7 -smp 1 -m 256M
# virtio-mmio defaults to the legacy (0.9) transport; virtio-gpu and
# virtio-input are VERSION_1-only devices and never bind without this.
-global "virtio-mmio.force-legacy=false"
-kernel "$KERNEL" -initrd "$INITRD"
-netdev "$NETDEV"
-device "virtio-net-device,netdev=n0"
-no-reboot
)
if [ -n "$DISK" ] && [ "$NO_DISK" -eq 0 ]; then
APPEND="$APPEND blkdevparts=$WARDEN_BLKDEVPARTS warden.slot=$SLOT"
ARGS+=( -drive "if=none,file=$DISK,format=raw,id=vd0"
-device "virtio-blk-device,drive=vd0" )
fi
[ "$SHELL_FLAG" -eq 1 ] && APPEND="$APPEND warden.shell"
# Tells init the FIRST 8250 is the control bridge. Without this marker init
# bridges nothing, so a VM launched with --rs485 alone never has its Modbus
# wire mistaken for the debug channel.
[ -n "$CTL" ] && APPEND="$APPEND warden.ctl"
[ "$ALLOW_APPLY" -eq 1 ] && APPEND="$APPEND warden.fwapply"
[ -n "$RTC" ] && ARGS+=( -rtc "base=$RTC" )
[ "$WATCHDOG" -eq 1 ] && ARGS+=( -device i6300esb -action watchdog=reset )
# The UI's debug channel, bridged out of the VM: rootfs/sbin/init relays lines
# between this port and warden-ui's control FIFO (see qmp.py --ctl). Same
# pci-serial the RS485 bridge rides. Listed BEFORE rs485 so that, whichever
# combination is requested, this port enumerates as ttyS0 -- the first port
# init's bridge probes. Put rs485 first and the bridge would be talking to the
# Modbus wire.
[ -n "$CTL" ] && ARGS+=( -chardev "socket,id=ctl,path=$CTL,server=on,wait=off"
-device "pci-serial,chardev=ctl" )
[ -n "$RS485" ] && ARGS+=( -chardev "socket,id=rs485,path=$RS485,server=on,wait=off"
-device "pci-serial,chardev=rs485" )
[ -n "$QMP" ] && ARGS+=( -qmp "unix:$QMP,server=on,wait=off" )
case "$DISPLAY_MODE" in
off) ARGS+=( -nographic ) ;;
on) ARGS+=( -device "virtio-gpu-device,xres=720,yres=720"
-device virtio-tablet-device -serial mon:stdio ) ;;
headless) ARGS+=( -device "virtio-gpu-device,xres=720,yres=720"
-device virtio-tablet-device -display none -serial mon:stdio ) ;;
*) echo "FATAL: --display must be off|on|headless" >&2; exit 1 ;;
esac
exec qemu-system-arm "${ARGS[@]}" -append "$APPEND" ${EXTRA[@]+"${EXTRA[@]}"}