BFE EngineeringandClaude Fable 5
c7e06514ad
Phase 3 of the device sim, all verified on QEMU 10.0.11: - qemu/rs485-bridge/: std-only crate bridging a QEMU serial chardev (unix socket) to warden_sim::ModbusSlave — gap-based RTU framing (CRC failures degrade to real-slave silence), line-protocol control socket for register seeding and fault injection (drop/exception/clear), bounds-checked so a scenario typo answers err instead of panicking the bus. 7 unit tests, bench in the sim_bench pattern. Verified end-to-end: guest master frame on /dev/ttyS4 (pci-serial) answered from the sim slave, CRC-correct. - virt machine gains highmem=off: the 32-bit non-LPAE kernel cannot reach virt's default 40-bit PCIe ECAM (pci-host-generic EOVERFLOW); with it the full PCI set probes (16550A ttyS0, i6300esb). - Watchdog scenario verified: guest arms /dev/watchdog, no petting, i6300esb resets the VM ~30s later (first environment where this arm is testable). - qemu/tests/portal-scenario.sh: the real static-musl warden-flared inside the VM against flare-edge's mock portal on the host — authenticated check-in, firmware desired-state pull, and download of a real signed tier-1 .wfw offer, asserted from the portal log. Found and filed flare-edge#106 (fatal SIGBUS in the HPMCU boot-loaded probe on non-RV1106 memory maps); runs against a flared built from the qemu-vm-support fix branch. - stage-2 init: WARDEN_FLARE_INSECURE=1 + WARDEN_HPMCU=0 (documented VM deviations), firmware-version stamp, newline-terminated state seeds. - CI: rs485-bridge joins the test loop and bench job; new qemu-tools job (shellcheck + initramfs + disk image on hosted runners); kernel-build gains a fail-closed qemu boot-smoke step. All qemu scripts shellcheck-clean. 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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if [ -z "$ZIMAGE" ] || [ ! -f "$ZIMAGE" ]; then
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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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fi
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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,highmem=off -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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