Runtime validation of the cutover in QEMU (q35, e1000 + AHCI):
- thread::scope's park/unpark path hangs on Redox (scoped worker
completed all work but the scope join never returned — the boot
stalled inside every concurrent enumeration). The concurrent probe
pool now uses plain thread::spawn + JoinHandle::join (all captures
were already owned/Arc); the counting semaphore is Arc-based so
guards are 'static. bound map is Mutex (RwLock write was unproven
on target).
- initfs driver-manager no longer registers scheme:driver-manager —
the transient initfs manager's registration survived into the
rootfs phase and made the resident manager's registration fail
EEXIST (which then exit(1)'d the rootfs manager).
- config: matchless [[driver]] entries now parse (serde default) —
70-usb-class.toml's USB-class drivers (no [[driver.match]]) broke
config loading entirely on the first gate. Includes a regression
test for load_all with matchless entries.
- graphics: 30-graphics.toml moves from the shared
redbear-device-services.toml to redbear-full.toml (redox-drm is a
full-only driver; mini no longer defers it every hotplug cycle).
vesad removed from drivers.d — it is an init-managed service, not
a spawnable driver.
Gate evidence: initfs 'bound: 0000--00--1f.2 -> ahcid', switchroot,
rootfs 'bound: 0000--00--02.0 -> e1000d' with ZERO deferred,
scheme:driver-manager registered, resident hotplug loop (250ms),
pcid-spawner dormant on both phases.
LDR-2 (spawned mode): linux-kpi pci_register_driver now honors
PCID_CLIENT_CHANNEL — when spawned by driver-manager (or pcid-spawner)
it probes only the granted device and never enumerates, making the
manager the single owner of match-claim-spawn. Standalone
self-enumeration remains for CLI tools. redox-driver-sys
parse_scheme_entry is now pub.
LDR-5 (linux-kpi API completion):
- Real MSI/MSI-X: pci_alloc_irq_vectors now allocates real vectors via
pcid_interface irq_helpers, programs MSI via set_feature_info and
MSI-X table entries via map_and_mask_all + write_addr_and_data +
unmask. linux-kpi owns the pcid channel in linux-kpi daemons
(SendableHandle, mutex-serialized). LEGACY path keeps real INTx.
- pci_request_regions/pci_release_regions (BAR validation + tracking).
- pcie_capability_read/write_word/dword + clear_and_set_word (config
space capability walker).
- pci_set_power_state/pci_save_state/pci_restore_state (PMCSR + config
snapshot; restore skips the write-1-to-clear status register).
- C header declarations synced.
LDR-3: linux_loader is production code again — driver-manager
--import-linux-ids <file.c> parses a Linux pci_device_id table and
emits [[driver.match]] TOML. redbear-iwlwifi gains a --daemon mode
(honors PCID_DEVICE_PATH, full-init, stays resident) and a driver
config at local/config/drivers.d/70-wifi.toml.
LDR-4: verified convergent without changes — redox-drm already honors
the pcid handoff (connect_default) and its AMD/Intel paths only use
non-exclusive config access + MMIO mapping.
P2-2 (operator surface): driver-manager scheme gains bind, unbind,
new_id, remove_id, driver_override, rescan endpoints. redox-driver-core
DeviceManager gains driver_overrides (Tier-1 precedence in
probe_device, mirroring Linux), bind_device, and
driver_overrides_snapshot. parse_new_id has 5 host tests.
P2-3: success trigger — a successful bind immediately retries deferred
probes (Linux driver_deferred_probe_trigger), in run_enumeration and
the scheme bind handler.
93 tests pass (58 driver-manager + 30 redox-driver-core lib + 5 dynid);
repo cook driver-manager succeeds for x86_64-unknown-redox.
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
vasilito