vasilito
8801805031
IRQ plan + validation matrix: the login-based QEMU proofs (PS/2 + serio, monotonic timer, IOMMU first-use, USB storage BOT) now run through local/scripts/qemu-login-expect.py (stdlib python) instead of the host expect tool. MSI-X (virtio-net) and xHCI interrupt-driven mode were re-confirmed on the current redbear-mini ISO. Re-confirmation of the login-based legs with the new harness is pending an uncontended host (parallel QEMU workload kills QEMU processes and stalls guest boots). Also record the fbcond Performing-handoff boot freeze observed with -vga std (separate graphics-path issue).
51 lines
3.1 KiB
Markdown
51 lines
3.1 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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✅ = 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. 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 that kills QEMU processes and stalls guest boots under load; 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.
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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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