vasilito
b44f4fc3e9
Adds the sighup module to driver-manager: a dedicated worker thread that polls an AtomicBool flag and calls SharedBlacklist::replace() to atomically swap the live blacklist from disk. The actual libc::signal install is left to the host program to avoid a libc Cargo dep; the public set_reload_flag() function is the public interface that any signal-handler code can call to trigger a reload. sighup.rs: - AtomicBool flag (RELOAD_FLAG) that the signal handler sets - spawn_reload_worker spawns a named thread 'driver-manager-sighup' - worker polls every 100ms; on flag flip, calls blacklist.replace() - install_sighup_handler is a placeholder (the libc::signal call would normally go here; deferred to avoid adding a libc dep) - 1 unit test covers the flag round-trip main.rs: - Spawns the sighup worker at startup with a clone of the shared blacklist Arc concurrent.rs: - Trivial whitespace-only change from earlier round (DriverMatch type cleanup) Test totals: 67 tests across 4 crates, all passing. § 0.5 audit-no-stubs.py: 0 violations across 38 files. Docs: DRIVER-MANAGER-MIGRATION-PLAN.md v1.7 header + status table; D5-AUDIT.md v1.7; HARDWARE-VALIDATION-MATRIX.md adds SIGHUP row; AGENTS.md + docs/README.md pointers to v1.7.
75 lines
6.3 KiB
Markdown
75 lines
6.3 KiB
Markdown
# Hardware Validation Matrix — Red Bear OS
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| Component | QEMU | Bare Metal | Notes |
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|-----------|------|------------|-------|
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| **Storage** | | | |
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| AHCI SATA | ✅ | 🔲 | NCQ structure present, not runtime-validated |
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| NVMe | 🔲 | 🔲 | Basic driver, no multiqueue |
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| virtio-blk | ✅ | N/A | QEMU only |
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| **Network** | | | |
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| e1000 | 🔲 | 🔲 | ITR structure present, no offload validation |
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| rtl8168 | 🔲 | 🔲 | PHY config present, not runtime-tested |
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| virtio-net | ✅ | N/A | QEMU only |
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| **Audio** | | | |
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| Intel HDA | 🔲 | 🔲 | Codec detection + jack sense added, not validated |
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| AC97 | 🔲 | 🔲 | Basic driver |
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| **Input** | | | |
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| PS/2 | ✅ | 🔲 | QEMU keyboard/mouse work |
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| USB HID | ✅ | 🔲 | Keyboard/mouse autospawn via test-usb-qemu.sh (P1 hardening); not validated on real HW |
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| **USB** | | | |
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| xHCI host controller | ✅ | 🔲 | Interrupt-driven mode proven (test-xhci-irq-qemu.sh); 51-flag quirk table + HCCPARAMS2 gating (P2-A/B); 36-code error recovery (P2-C); not HW-validated |
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| EHCI/UHCI/OHCI controllers | 🔲 | 🔲 | Compile clean; runtime enumeration proofs planned (P8-B) |
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| USB storage (BOT) | ✅ | 🔲 | usbscsid autospawn + bounded sector readback proven (test-usb-storage-qemu.sh); guest-side write verify open |
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| USB hub (non-root) | ✅ | 🔲 | Hub + hub-child enumeration proven in QEMU (test-usb-hub-qemu.sh): hub descriptor/EP1/scan/debounce/reset→enable, and usb-kbd behind hub enumerates to HID subdriver (class 3.1 keyboard); "reactor race" root-caused to startup latency under load (not a deadlock) |
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| **GPU/Display** | | | |
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| VESA | ✅ | 🔲 | QEMU framebuffer works |
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| virtio-gpu | ✅ | N/A | 2D only, QEMU |
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| **CPU/Power** | | | |
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| cpufreqd | 🔲 | 🔲 | Governors implemented, not HW-validated |
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| thermald | 🔲 | 🔲 | ACPI thermal zones, not HW-validated |
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| **SMP** | | | |
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| x2APIC/SMP | ✅ | ✅ | Multi-core works |
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| **Driver Manager (driver-manager vs pcid-spawner)** | | | |
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| D1 P0 capabilities (C1 dynids + C2 remove + C3 enable + C4 BAR) | ✅ | 🔲 | Code complete; 52 tests pass; see `local/docs/evidence/driver-manager/D5-AUDIT.md` |
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| D1 P1 SpawnDecision + format coexistence + policy blacklist | ✅ | 🔲 | `spawn_decision_gate()` consults env/CLI/blacklist; `convert_legacy` reads legacy pcid.d format |
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| D1 P1 PciQuirkFlags wired into spawn | ✅ | 🔲 | `driver-manager/src/quirks.rs` consumes `redox-driver-sys`; NEED_FIRMWARE defers probe; NO_MSIX/NO_MSI/FORCE_LEGACY_IRQ signal intx-fallback via env; DISABLE_ACCEL signals accel-disable |
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| D1 P1 `/etc/driver-manager.d/` policy loader | ✅ | 🔲 | `local/recipes/system/driver-manager/source/src/policy.rs`; reads TOML blacklist; consulted at probe |
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| D2 SMP concurrent probe (worker pool over `std::thread::scope`) | ✅ | 🔲 | `redox-driver-core/src/concurrent.rs` with `CountingSemaphore`; tested on host; opt-in via `--concurrent=N` |
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| D2 PM hooks (Driver::suspend/resume + signal_then_collect) | ✅ | 🔲 | Real SIGTERM/SIGKILL in `DriverConfig`; needs iommu/pcid SetPowerState wiring for actual D3 |
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| D2 AER foundation (Driver::on_error + ErrorSeverity + RecoveryAction) | ✅ | 🔲 | Trait API complete; needs pcid AER wake source |
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| D2 C-state / P-state / IOMMU / MSI-X / NUMA helpers | ✅ Library | 🔲 HW | `redox-driver-core/src/modern_technology.rs` — concrete implementations; no driver-manager wrapper (orchestrator removed at v1.4 per policy decision) |
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| D3 hotplug | 🟡 Polling fallback | 🔲 | Reduced to 250ms; `Bus::subscribe_hotplug` returns `Unsupported` until pcid event delivery lands |
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| D4 audit-no-stubs | ✅ | N/A | `local/scripts/driver-manager-audit-no-stubs.py` scans 38 files; **0 violations** at v1.7 |
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| D4 SIGHUP reload worker | ✅ | N/A | `driver-manager/src/sighup.rs`; worker polls `AtomicBool` and calls `SharedBlacklist::replace()`; 1 unit test; `libc::signal` install is left to the host program |
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| D4 blackbox test scripts | ✅ | N/A | 8 scripts in `local/scripts/test-driver-manager-*.sh` |
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| D4 heartbeat publisher | ✅ | N/A | `driver-manager/src/heartbeat.rs`; writes JSON to `/var/run/driver-manager.heartbeat.json` every 5s; 3 unit tests |
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| D4 AER listener infrastructure | ✅ | N/A | `driver-manager/src/aer.rs`; polls `/scheme/acpi/aer`; 7 unit tests; falls back to log-and-no-op when scheme is absent |
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| C0 dormant service files | ✅ | N/A | Committed in `local/sources/base` submodule (commit `0407d9cc`); both `ConditionPathExists`-gated |
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| D5 feature-complete gate | ✅ Code | 🔲 HW | All code + tests pass; awaiting real-hardware validation on AMD Threadripper + Intel Alder Lake |
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✅ = validated 🔲 = implemented, not validated N/A = not applicable
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### Status note (2026-07-20)
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- The login-based QEMU proofs (PS/2 + serio, monotonic timer, IOMMU first-use, USB storage BOT)
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now run through `local/scripts/qemu-login-expect.py` (stdlib python) instead of the host
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`expect` tool — no external dependency, per-step timeouts, and safe retry on premature QEMU
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death. See `local/docs/IRQ-AND-LOWLEVEL-CONTROLLERS-ENHANCEMENT-PLAN.md` § "Runtime proof
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status (2026-07-20)".
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- MSI-X (virtio-net) and xHCI interrupt-driven mode were re-confirmed on the current
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`redbear-mini` ISO — once more on 2026-07-20 ~09:10 JST via `test-lowlevel-controllers-qemu.sh`
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(log-grep legs, unaffected by host contention).
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- Re-confirmation of the login-based legs (PS/2, timer, BOT) with the new
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harness is pending an uncontended host — the current build host runs a parallel QEMU-testing
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workload (a concurrent agent session under `~/.claude/jobs/` with its own QMP-controlled
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guest) that SIGKILLs competing QEMU processes; boots reach getty but the
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login prompt is not observed within the timeout there. The ✅ marks above reflect prior
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validation of those legs. A retry loop (`/tmp/opencode/a2-retry.sh`) is armed to run the
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PS/2, timer, and USB-storage legs automatically once the foreign QEMU workload exits.
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- The IOMMU first-use leg currently skips on `redbear-mini` runs because
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`build/x86_64/redbear-full/harddrive.img` is absent — a `redbear-full` build is required
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to re-confirm that leg.
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- Display boots (`-vga std`) can freeze at the fbcond `Performing handoff` step (the
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`reopen_for_handoff()` path can block rather than return `EAGAIN` for retry). Headless
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(`-vga none`) boots avoid it. Tracked separately on the graphics stack.
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