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docs: bump driver-manager plan to v4.5; capture comprehensive dead-code cleanup

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Updates the canonical planning authority for the driver-manager migration
to v4.5, which closes the remaining Red Bear-original daemon dead code
across cpufreqd, iommu, and numad. All touched recipes now compile with
zero warnings on host and Redox target builds.

This is the last clean-up pass before the plan moves to operator-only
gates (hardware validation matrix, two-week soak + three bare-metal
reboots).

Last reviewed line updated to 2026-07-24 (v4.5).
This commit is contained in:
vasilito
2026-07-25 15:07:59 +09:00
parent 67db66681a
commit 3995591b77
1 changed files with 2 additions and 2 deletions
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local/docs/DRIVER-MANAGER-MIGRATION-PLAN.md
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# Red Bear OS — `pci-spawner` → `driver-manager` Migration Plan
**Document status:** v4.4 canonical planning authority (supersedes v4.3: v4.4 closes the remaining boot-log noise — initfs sidecar-IPC ENODEV warning, initfs /tmp timeline-log failure, redbear-upower phantom-shutdown log spam — and replaces the fake BDF hash in `iommu_group_env_value` with a real bincode RPC query to the iommu daemon. v4.3 in turn superseded v4.2: v4.3 closes the `Driver-level Driver::on_error IPC` item via a layered approach — in-process `DriverConfig::on_error` for manager-side override, sidecar unix socketpair for spawned-daemon opt-in, linux-kpi C-callable `pci_register_error_handler` for driver-side participation. v4.2 in turn superseded v4.1: v4.2 closes the `acpid pci_fd` item and adds per-vendor firmware recipes. v4.1 in turn superseded v4.0: v4.1 closes the three P3 items the v4.0 header declared open — AER auto-dispatch, QuirkPhase::Early gating, per-vendor firmware assessment — and adds a driver-by-driver audit + adjacent-technology compatibility matrix. v4.0 in turn superseded v3.2: P2-1 done, P3 hygiene largely complete, pcid-spawner fully retired, quirks universal model, build-system staleness fix, QEMU gate passed, AER/pciehp producers live, udev-shim driver-binding view wired, concurrent double enumeration eliminated, PciErsResult 6-state enum added.)
**Document status:** v4.5 canonical planning authority (supersedes v4.4: v4.5 closes the remaining Red Bear-original daemon dead code — cpufreqd unused EPP constants and IA32_PERF_STATUS readback path, numad SLIT collection + SratMemory struct that were never used, iommu `buffer` field documented as RAII holder — and brings all touched recipes to zero compiler warnings on host and Redox target builds. v4.4 in turn superseded v4.3: v4.4 closes the remaining boot-log noise — initfs sidecar-IPC ENODEV warning, initfs /tmp timeline-log failure, redbear-upower phantom-shutdown log spam — and replaces the fake BDF hash in `iommu_group_env_value` with a real bincode RPC query to the iommu daemon. v4.3 in turn superseded v4.2: v4.3 closes the `Driver-level Driver::on_error IPC` item via a layered approach — in-process `DriverConfig::on_error` for manager-side override, sidecar unix socketpair for spawned-daemon opt-in, linux-kpi C-callable `pci_register_error_handler` for driver-side participation. v4.2 in turn superseded v4.1: v4.2 closes the `acpid pci_fd` item and adds per-vendor firmware recipes. v4.1 in turn superseded v4.0: v4.1 closes the three P3 items the v4.0 header declared open — AER auto-dispatch, QuirkPhase::Early gating, per-vendor firmware assessment — and adds a driver-by-driver audit + adjacent-technology compatibility matrix. v4.0 in turn superseded v3.2: P2-1 done, P3 hygiene largely complete, pcid-spawner fully retired, quirks universal model, build-system staleness fix, QEMU gate passed, AER/pciehp producers live, udev-shim driver-binding view wired, concurrent double enumeration eliminated, PciErsResult 6-state enum added.)
**Generated:** 2026-07-20
**Last reviewed:** 2026-07-24 (v4.4: boot-log fixes + iommu real scheme query + sidecar IPC end-to-end + hwutils dead-code)
**Last reviewed:** 2026-07-24 (v4.5: comprehensive dead-code cleanup across cpufreqd, iommu, numad)
**Toolchain:** Rust nightly-2026-05-24 (edition 2024)
**Architecture:** Microkernel OS in Rust (Redox fork)
**Cross-reference baseline:** Linux kernel 7.1 at commit `ab9de95c9` (`local/reference/linux-7.1/`), CachyOS (`local/reference/cachyos/` — linux-cachyos `0001-cachyos-base-all.patch` 6.17.9 + desktop ISO 260628)