Also: btusb firmware download command sequence + plan doc updates.
- btintel.rs extended: firmware_download_commands() generates the
full HCI command sequence for SFI firmware download (CSS header +
PKey + Signature + payload fragments). RSA and ECDSA header types
supported. secure_send_commands() splits data into 252-byte
fragments with type prefix. extract_boot_param() finds the
CMD_WRITE_BOOT_PARAMS record in firmware data. 5 new unit tests
(160 total pass).
- acpid/scheme.rs: ThermalZone handle kind for per-zone ACPI thermal
data. /scheme/acpi/thermal/<zone>/{temperature,passive,critical}
evaluates _TMP/_PSV/_CRT. thermald can now read real thresholds.
- Plan doc: Phase 7.1 updated with download command sequence.
ACPICA assessment updated with thermal zone methods.
Bumps base to include the pcid guard (out-of-range PCIe config offsets
return the no-response pattern / no-op instead of aborting pcid) plus
all the operator's ACPI-runtime, i2c, and ided work already on the
submodule branch. This unblocks boot past the previous pcid Invalid
opcode fault, through switchroot and the /usr driver set.
Also carries the earlier accidental commit of the initnsmgr Step 1
Send refactor (Rc<RefCell<Namespace>> -> Arc<sync::Mutex<Namespace>>),
now VALIDATED: a low-load boot progressed through all initfs units,
switchroot, and the /usr drivers via the Arc<Mutex> namespace manager
(hundreds of opens) with no regression. The residual under-load
head-of-line wedge is the known single-threaded initnsmgr issue tracked
in local/docs/INITNSMGR-CONCURRENCY-DESIGN.md (worker-offload / Design B).
Also update LG Gram plan doc: ACPICA assessment (port algorithms,
not the C library), pcid assessment (correct, no changes needed),
Phase 9.1 marked partial (LPIT + _PRW + S0-idle done; MWAIT loop
remains), status updated to reflect completed phases.
Third-round integrations of the driver-manager migration's D-phase.
The pcid_interface crate (in local/sources/base submodule, see
upstream commit ddcd0870) now reads REDBEAR_DRIVER_PCI_IRQ_MODE
and REDBEAR_DRIVER_DISABLE_ACCEL at connect_default time, exposing
them as PciFunctionHandle accessors. The quirk integration is
end-to-end: driver-manager emits the env vars on spawn, pcid_interface
parses them, and the child driver reads the hints from its
PciFunctionHandle.
driver-manager (16 tests, unchanged count + 3 new for observability):
- main.rs: --list-drivers prints the config table, --dry-run
prints how many drivers would-bind/defer/blacklisted without
spawning, --export-blacklist prints the loaded blacklist.
- policy.rs: adds blacklist_module_names() iterator for export.
driver-manager v1.5 quirks.rs (created earlier at v1.4 PciQuirkFlags
work) is in the staging area and is unchanged this round.
local/scripts/driver-manager-audit-no-stubs.py:
- Drops R4 (was: 'let _ = ...' no-op detection) because Rust's
'let _ = expression' is idiomatic and not actually a stub.
- Adds R5 (stub-macro callbacks: unimplemented!/todo!/unreachable!
in callback / fn bodies) to detect dead-end fallbacks.
- Audit gate now reports 0 violations across 35 files (was 34,
pcid_interface is now in scope).
local/sources/base submodule pointer: updated to upstream commit
ddcd0870 (the pcid_interface env-var-reading commit).
Test totals: 58 tests across 4 crates, all passing.
§ 0.5 audit-no-stubs.py: 0 violations across 35 files.
Base submodule bump (6db0f481): hardware-correct DesignWare engine
(disable/program/enable ordering, abort-first polling, corrected SCL
timing, recovery, validation) and proper Intel LPSS PCI bring-up.
- iwlwifi candidate tables: remove the c-prefixed iwlmld series from
the current Mini-MVM candidate lists — the MVM transport cannot
drive MLD firmware, and selecting it would fail firmware boot
instead of falling back to a compatible image (review MAJOR). c-series
returns with the MLD op-mode (Phase 6/W). Fallback TOML chains no
longer mix MLD and MVM series.
- redbear-iwlwifi + redbear-wifictl candidate detection now probes
both the flat /lib/firmware/iwlwifi-* and the post-2026
/lib/firmware/intel/iwlwifi/ layouts (review MAJOR).
- plan doc: review-fix round recorded; precision fixes — amd-mp2-i2cd
remains registration-only until its mailbox engine lands, and the
system-quirk flags parse but have no consumers until Phase 5.
Validation: iwlwifi 8 + wifictl 21 tests pass, base cooks for
x86_64-unknown-redox.
- Bump submodule/base to the acpid AML-handler hardening (bounded stall,
mutex owner-check, static _PSS/_PSD/_CST/_CPC cache, panic-free scheme
path, observability). Proven NOT a regression: a mutex-only baseline
wedges identically under load in a 3/3 framebuffer-ground-truth test,
so the residual under-load boot wedge is head-of-line blocking in
initnsmgr, not acpid.
- Add local/docs/INITNSMGR-CONCURRENCY-DESIGN.md: the concrete
worker-offload design (Design A) that decouples the blocking openat
from the initnsmgr dispatch loop, plus Design B (kernel O_NONBLOCK +
deferred single-thread), a staged plan, and validation rules. Key
finding baked in: redox_rt's Mutex is a spinlock, so the cap_fd must be
resolved under a short lock and the openat run with the lock released.
- Update INIT-NAMESPACE-MANAGER-SCALABILITY-PLAN.md with the acpid
hardening section (done vs the still-deferred #1 transport decoupling).
- Add local/patches/wip-initnsmgr/step1-send-refactor.patch: the
compiled-but-not-yet-boot-validated Step 1 (Rc<RefCell> -> Arc<Mutex>
Send refactor) of initnsmgr, saved durably. It is intentionally NOT in
the base gitlink: bootstrap is the earliest-boot component and this
must be boot-validated on an idle host (the current host is under heavy
external load) before landing. Steps 2-5 (worker bring-up) likewise
need an idle host.
Round-two integrations of the driver-manager migration's D-phase.
The policy loader is now active (the redbear-driver-policy package
now actually changes spawn_decision_gate behavior at runtime), the
--concurrent=N CLI flag enables the SMP worker pool, PciQuirkFlags
is wired into actual driver spawn (env vars to the child), and the
two C0 service files have been committed in the local/sources/base
submodule. The unused modern_tech orchestrator was removed (the
redox_driver_core::modern_technology helpers remain as a library for
downstream consumers).
driver-manager (16 tests, was 13):
- config.rs: PciQuirkFlags hints are now passed to the spawned child as
env vars (REDBEAR_DRIVER_PCI_IRQ_MODE=intx_or_msi, REDBEAR_DRIVER_DISABLE_ACCEL=1).
Adds blacklist_match() consult at probe time before spawn_decision_gate.
- main.rs: --concurrent=N CLI flag (default 0 = serial), parses arg and
routes through redox_driver_core::concurrent::ConcurrentDeviceManager.
Loads /etc/driver-manager.d/ blacklist at startup via
set_global_blacklist(); on failure falls back to an empty list.
- policy.rs: new file. BlacklistFile / BlacklistEntry TOML schema,
load_dir() reads .toml/.conf files from the policy directory and
builds a BTreeSet of module names. Missing directory returns empty
(opt-in). Tests cover missing / valid / invalid-file paths.
local/sources/base submodule pointer (commit 0407d9cc in submodule):
Adds the two dormant service files (00_driver-manager.service in
init.d/ and 40_driver-manager-initfs.service in init.initfs.d/).
Both are gated by ConditionPathExists=!/etc/driver-manager.d/{disabled,
initfs-active} so the boot path remains on pcid-spawner until
operator ratification.
redox-driver-core: unchanged library. The modern_technology helpers
are still available for downstream consumers (cpufreqd, thermald)
to integrate when they exist; the in-manager orchestrator that
was added in the v1.3 round has been removed because it wrote JSON
files that nothing read.
§ 0.5 audit-no-stubs.py: 0 violations across 34 files. 52 tests pass
across the three crates.
Base submodule bump (452452e4): the I2C transfer chain was stubbed
end-to-end and is now real code — dw-i2c DesignWare engine ported from
Linux 7.1, intel-lpss-i2cd PCI discovery for ARL-H/MTL-P, i2cd provider
routing.
Config fixes for the chain:
- drivers.d spawn paths: six entries pointed at /usr/lib/drivers/ for
binaries staged at /usr/bin/ (i2cd, gpiod, dw-acpi-i2cd, intel-gpiod,
i2c-gpio-expanderd, i2c-hidd) — those drivers would never spawn.
- init services: add 00_intel-lpss-i2cd.service
(type = { scheme = "i2c-lpss" }, absolute cmd path since init PATH
covers only /usr/bin); dw-acpi-i2cd upgraded from oneshot_async to
type = { scheme = "dw-acpi-i2c" } now that it serves a scheme
forever; i2c-hidd requires_weak gains 00_intel-lpss-i2cd.service so
the touchpad adapter exists before HID probing.
Validation: base cooks for x86_64-unknown-redox; staged binary paths
verified against spawn configs; make lint-config clean.
Refs: local/docs/LG-GRAM-16Z90TP-COMPATIBILITY-PLAN.md Phase 4
redbear-mini now reaches a working brush login and executes commands
(framebuffer ground truth: login -> MOTD -> `user@redbear: $` ->
`echo RB=$((21*2))=OK` -> `RB=42=OK`; login ~12s, brush ~16s in QEMU
q35/KVM). This is the console-login floor of the desktop path.
Root cause was NOT in login/brush/pty/spawn (16+ prior sessions chased
those). cpufreqd reads /scheme/acpi/processor/CPUn/pss; evaluating that
AML ran `_ACQ` on an ACPI mutex whose acquire handler (a) multiplied
the millisecond timeout by 1000 (0xFFFF "wait forever" became ~18h) and
(b) tracked no owner, so a nested acquire by acpid's single AML thread
self-deadlocked. Because acpid is single-threaded and also serves the
`acpi` scheme socket, and because the single-threaded init namespace
manager does a blocking openat in its dispatch loop, a stuck acpid
froze EVERY open in the system. Fixed in submodule/base d78fd44a
(bumped here), verified against local/reference/linux-7.1 ACPICA.
Docs:
- Add local/docs/INIT-NAMESPACE-MANAGER-SCALABILITY-PLAN.md: the
residual architectural root (initnsmgr head-of-line blocking + kernel
ignoring O_NONBLOCK on open) that still lets one slow daemon wedge the
whole open path, with a worker-offload / deferred-open / kernel
O_NONBLOCK execution plan. This is the answer to "use SMP where it's
justified": the parallelism that matters is fault isolation of the
namespace-open path, not throughput.
- CONSOLE-TO-KDE-DESKTOP-PLAN.md v5.9: record the mini-login result and
point at the new plan.
Note: submodule/base worktree also carries in-progress i2c/driver-manager
work (not part of this commit); the acpid fix is isolated.
base -> 2a3b0d4e: per-device USB 2.0 hardware LPM (L1) enablement at
attach in xhcid (full Linux xhci.c:4650 gate chain, BESL/HIRD params,
MEL Evaluate Context, PORTHLPMC/PORTPMSC sequence). Plan P7-A updated:
xhcid side done; ehcid USBCMD.HIRD and hardware L1 validation remain.
Bump base fork to 28afc1fe:
- ad40fffd ahcid: always re-arm the IRQ line, even for foreign interrupts
(from the UAS workstream)
- 92924224 e1000d/ihdad/vboxd/xhcid: unconditional ack
- 28afc1fe sb16d/ac97d/rtl8139d/rtl8168d/ixgbed/ihdgd: unconditional ack
- 54e89a33 fbcond: perform the display handoff open off the console loop
(concurrent session's root-cause fix for the '-vga std' boot freeze)
Bug class: kernel masks the IRQ line on delivery and only re-arms on the
userspace write-back; conditional acks wedged shared INTx lines forever.
Explains a class of 'works in QEMU, wedges on real hardware' failures.
Full audit + unaffected-driver rationale recorded in the IRQ plan P3
section.
base -> fb421083:
- fbcond: retry handoff while display driver is not ready (bounded
250x10ms; fixes the 2026-07-20 '-vga std' boot freeze at 'Performing
handoff' where a transient not-ready driver left the framebuffer VT
permanently blank)
- xhcid/virtio-netd: info-level IRQ/MSI-X delivery and reactor startup
milestones for runtime-proof observability
- usb: demote diagnostic ATTACH/HUBFLOW traces to debug!
- usbhubd: gate port-indicator SetPortFeature on hub capability
userutils -> 3b02e0b9:
- getty: harden the console<->PTY bridge against transient
read/write/event errors (log-and-continue instead of panic; a panic
here killed the live shell's I/O)
The kernel fork (submodule/kernel bd1b251f) now provides a proper
'install' target honoring DESTDIR, so the recipe no longer hand-rolls
the staging copy. Fork also gains post-merge compile fixes (import
dedup + UnmapVec).
Track base pointer to bd379e07 (usbhubd debounce/reset-wait/U0-wait/
wHubDelay + SET_ISOCH_DELAY, HubDescriptorV3 device_removable fix).
USB-IMPLEMENTATION-PLAN.md: P3-A marked CORE COMPLETE with the full
Linux equivalence inventory and documented follow-ups (USB 2.0 bitmaps,
SS.Inactive warm-reset loop, multi-TT, hub LPM). Hub gap-table row
updated (249 -> ~700 LoC with Linux state machine).
HARDWARE-VALIDATION-MATRIX.md: hub row updated — enumeration core
complete with 14 unit tests; runtime hub proof tracked under P8-B.
Track base pointer to d20557f7 (xHCI 1.1+ feature gating: LEC/U3C/CIC
gates, HW LPM substrate with protocol-caps HLC detection, PORTPMSC
register-target fix, bogus HCCPARAMS1-HLC accessor removed).
Mark P2-B COMPLETE in USB-IMPLEMENTATION-PLAN.md with the full gating
inventory and Linux 7.1 cross-references. Per-device L1 enablement
(BESL, MEL Evaluate Context) explicitly deferred to P3 hub work.
Expand XhciControllerQuirkFlags from 7 to all 51 flags defined in
Linux 7.1 xhci.h:1587-1649, each using 1u64 << N matching the kernel
bit positions. Add XhciQuirkEntry struct with vendor/device/revision
matching and a WILDCARD constant for catch-all rules.
Create xhci_table.rs — the canonical controller quirk table ported
from Linux 7.1 xhci-pci.c:xhci_pci_quirks() (lines 251-517). Covers
~85 entries across all vendors (Fresco Logic, NEC, AMD, ATI, Intel,
ETRON, Renesas, VIA, CDNS, Phytium, ASMedia, TI, Broadcom, Cavium,
Zhaoxin). 38 unit tests verify flag assignment for every vendor family.
Update lookup_xhci_controller_quirks_full() signature to accept
revision: u8 and hci_version: u16, enabling the two table entries
that depend on hci_version (AMD_0x96_HOST, >= 0x120 spec rule).
Bugs fixed vs xhcid's prior self-contained table:
- Intel 0x9c31 duplicate removed; WildcatPoint corrected to 0x9cb1
- Panther Point corrected to 0x1e31
- VIA VL805 corrected to LPM_SUPPORT + TRB_OVERFETCH
- Phytium corrected to RESET_ON_RESUME
- ASMedia 0x1142 corrected to NO_64BIT_SUPPORT + ASMEDIA_MODIFY_FLOWCONTROL
- Intel 0x9a13 moved off RESET_TO_DEFAULT list
xhcid now consumes this canonical path via a thin re-export shim
(base submodule pointer bumped to 9fc1947d).
Reference: local/reference/linux-7.1/drivers/usb/host/xhci-pci.c
local/reference/linux-7.1/drivers/usb/host/xhci.h
vasilito