BFE EngineeringandClaude Fable 5
bf3c93cf85
The third simulator (deliberately not named "sim"): a QEMU -M virt VM that boots the real 6.18.46 kernel and enters at -kernel zImage — everything below (BootROM/idblock/U-Boot/real BCB A/B selection) is closed blobs + mask ROM and is explicitly out of scope. - qemu/mkinitramfs.sh: pinned static busybox (sha256 fail-closed) + rootfs/ - qemu/mkimage.sh: unprivileged sparse disk image with the device's canonical 12-partition blkdevparts A/B layout (vda == mmcblk0 mapping) - qemu/rootfs/: stage-1 init (by-name symlinks from PARTNAME uevents, whole-token warden.slot= parse, switch_root) + stage-2 init (userdata/oem mounts, slirp networking, payload daemon start) - qemu/run.sh: runner with --slot/--rtc/--watchdog/--rs485/--qmp/--display - qemu/configs/virt.fragment + WARDEN_KCONFIG_FRAGMENT hook in build/build-kernel.sh (canonical RV1106 build untouched when unset): adds PCI, pci-serial, i6300esb watchdog, WireGuard, virtio-gpu/input - qemu/tests/boot-smoke.sh: sentinel-asserting boot test Verified on QEMU 10.0.11: canonical zImage boots -M virt unmodified (the feared DEBUG_UNCOMPRESS decompressor hang does not exist in 6.18); full stack boots both slots; 12 by-name symlinks; userdata persists across reboot; -rtc base=2021-01-01 reproduces the no-RTC wrong-clock class. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K
46 lines
1.6 KiB
Bash
Executable File
46 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Boot the warden kernel under qemu-system-arm -M virt and assert the initramfs
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# sentinel appears on the console. FAILS CLOSED: a missing zImage, initramfs,
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# or qemu binary is an error, never a skip.
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#
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# Usage: boot-smoke.sh <zImage> [initramfs.cpio.gz]
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set -euo pipefail
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HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" # qemu/tests/
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QDIR="$(cd "$HERE/.." && pwd)" # qemu/
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ZIMAGE="${1:-}"
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[ -n "$ZIMAGE" ] && [ -f "$ZIMAGE" ] || {
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echo "FATAL: usage: $0 <zImage> [initramfs] — zImage missing or not a file: '${ZIMAGE:-}'" >&2
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exit 1
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}
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INITRD="${2:-$QDIR/out/initramfs.cpio.gz}"
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[ -f "$INITRD" ] || {
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echo "FATAL: initramfs not found at $INITRD — run qemu/mkinitramfs.sh first" >&2
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exit 1
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}
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command -v qemu-system-arm >/dev/null || {
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echo "FATAL: qemu-system-arm not on PATH (apt-get install qemu-system-arm) — see qemu/README.md" >&2
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exit 1
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}
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LOG="$(mktemp "${TMPDIR:-/tmp}/warden-qemu-smoke.XXXXXX")"
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trap 'rm -f "$LOG"' EXIT
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# NOTE: never pass `earlyprintk` — the config's DEBUG_UART_PHYS is the RV1106's
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# 0xff4c0000, which does not exist on -M virt.
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timeout 180 qemu-system-arm \
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-M virt -cpu cortex-a7 -smp 1 -m 256M \
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-kernel "$ZIMAGE" -initrd "$INITRD" \
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-append "console=ttyAMA0 rdinit=/init" \
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-nographic -no-reboot </dev/null | tee "$LOG" || {
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echo "FATAL: qemu exited non-zero (or hung until the 180s timeout)" >&2
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exit 1
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}
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grep -q "WARDEN-QEMU-BOOT-OK" "$LOG" || {
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echo "FATAL: boot sentinel WARDEN-QEMU-BOOT-OK not found in console log" >&2
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exit 1
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}
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echo "boot smoke OK"
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