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across the tree
New page docs/04-implementation/03-execution-frontier.md describes the chain
that must fire for a guest CUDA launch (guest push -> GPFIFO/front-end ->
inline launch-descriptor install -> engine read/dispatch -> completion),
where the leading edge is (the descriptor install path), how we know
(front-end vs engine-authored observables and their limits), what is
exonerated (context validity at dispatch, destination window mapping,
fetch alignment, shared-buffer rule, parenting), the ranked issues (verbatim
prelude targets, missing descriptor-virtualization control, sentinel
hygiene), live investigation lines and labelled theories.
Align every page that still said GR execution is blocked on engine-context
validity to the current frontier, and add the new page to the README reading
order (row 15, later rows renumbered). Docs only; no code.
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- docs/eng-ops.md gains Part II, live physical-backend engineering
operations: hard rules, the full module-parameter matrix, the routine
supervised cycle and clean-release checklist, the debugfs inventory,
how to read gsp-phys-state, a debugging scenario catalogue
(CTXNOTVALID/promote wedge, fail-safe WPR2, unload hangs, guest wedges,
MMU/PTE and PBDMA faults, relay symptoms), a hazard register (crash
causes and debugging side effects), the physical-backend OODA loop, and
the work-context map with porting flows
- architecture, implementation, operations, orientation, getting-started,
portability, ecosystem and reference docs corrected to the current
state: CUDA driver-API smoke green, CE-class work forwarding and
engine-authored releases plus fault relay in place (default off), GR
execution blocked on engine-context validity, the promote wedge and
designed locked fail-safe, and P5 wave-2 subsumed
- internal-reference cleanup in tracked docs (no analysis-source or
local-archive references); historical architecture document bannered
- README reading list and STATE-CURRENT frontier refreshed; new pages
(runbook, green-eye user guide, porting sequence, porting/packaging
notes) linked from the tree
Link check: scripts/check-docs-links.py passes (56 files, no broken links).
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- new 03-architecture/09-full-system-picture.md: end-state map, GSP boot,
guest init, RPC lifecycle, memory model, work path (bridge and end state),
scheduling, isolation levels, KVM/mdev/VFIO, BAR/engine/channel/GMMU,
portability, performance model, implementation/test status
- new 03-architecture/10-interaction-and-scheduling.md: interaction inventory,
control-plane call path, msgq element lifecycle, channel pump, concurrency,
timing budgets, multi-tenant scheduling, teardown ordering, versioning
- README: mermaid system diagram replaces the ASCII block; reading list
extended and renumbered
- component docs: GSP boot sequence, mdev/VFIO lifecycle, end-state
interaction sequence; STATE-CURRENT links
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