Robert Allan JamesandClaude Sonnet 5
6d330efdd8
xhci_poll_events()'s Port Status Change connect branch now calls xhci_cmd_enable_slot() directly (the earlier boot-time smoke test call is gone), tracked via a new dev->pending_connect_port_id -- since this driver only ever has one command outstanding at a time, that alone identifies which port a later Command Completion Event answers, without needing to match the Command TRB Pointer yet. On success the returned Slot ID is recorded in a new dev->port_slot_id[], a fixed uint32_t[XHCI_MAX_TRACKED_PORTS] (32) indexed by port. Disconnect clears the port's tracked slot (real teardown -- Disable Slot, DCBAA clear, Section U callback -- is still a later increment). Fixed array, not heap-allocated: a first attempt sized port_slot_id dynamically via kmalloc_aligned(dev->max_ports * sizeof(uint32_t), 64) inside xhci_bringup() and it crashed amd64 with a page fault (IFETCH at RIP=CR2=0xA0000, the legacy VGA hole) during the unrelated Mama-VM-birth phase afterward -- a heap-corruption signature, not chased to root cause. Switching to a fixed array (matching this driver's existing preference for fixed over dynamic allocation) made the crash go away; the crashing boot's log is kept (logs/20260822-102516/) as the evidence trail. Verified live via QMP hotplug, all three architectures: connect -> "enable slot command submitted" -> "enable slot succeeded", with a disconnect/reconnect cycle repeating cleanly and no port wedge. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HZ8kNoTuP63pbQtro4qvrm
capsules/
FORTH personality files loaded by the VM at boot. A capsule is an immutable, content-addressed payload; its XXHash64 hash is its identity. Any mutation changes the hash and the birth protocol rejects the image.
Key files
| File | Type | Purpose |
|---|---|---|
init.4th |
(m) MAMA_INIT |
Default Mama VM personality — loaded at LBN 2048 |
ACL.4th |
user | Word-level ACL system; self-activating at boot |
zuse.4th |
user | Bootstrap superuser; loaded by ACL.4th |
doe.4th |
user | DoE workload words (EXEC-DOE) — opt-in |
init-0.4th … init-9.4th |
(p) |
Numbered personality variants |
init-l8-*.4th |
(p) |
L8 Jacquard mode variants (stable/volatile/diverse/temporal/transition/omni) |
hermes/init.4th |
(p) |
Hermes baby VM personality |
artemis/init.4th |
(p) |
Artemis baby VM personality |
Block namespace
Block ranges are shared across all loaded capsules — collisions cause silent word-definition overwrites.
| Range | Owner |
|---|---|
| 2048–2099 | init.4th |
| 2100–2199 | doe.4th |
| 3000–3999 | workload capsules |
| 4000+ | user-defined (ACL.4th, zuse.4th, …) |
Each block is limited to 1024 bytes. Verify with wc -c before committing.
See also
experiments/bare_metal/README.md— DoE protocols and block namespace rulesdocs/03-architecture/word-acl/DESIGN.md— ACL system designtools/mkcapsule.c— assembles capsules intocapsule_generated.c- Project root