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physical backend
- New 4.2: describe behaviourally how the option-D claim path can
power-gate the board on driver release (platform power resource behind
the root port, off/on sequence via the embedded controller), the two
observed host freezes (no crash record), and the D0 lock now applied
across release -> claim -> rebind: runtime-PM forbid + D3cold disable on
the GPU, its board companion functions and the root port, config-space
verification while claimed and again before rebind, abort with the locks
held on any power-loss signature, runtime-PM restore after the
distribution driver's probe.
- 4.1/4.3: the lock is a required ownership step; returning to the normal
driver is conditional, not assumed; real GSP boot not started.
- 2/3(A): fresh no-unbind evidence - no exported RM/vGPU symbols and no
manager daemon in the stock distribution build.
- 6: driver-API baseline re-verified 64/64; ownership + firmware staging
verified; power-domain lock implemented pending supervised verification.
- 7/8: residual out-of-band power-cut risk, supervised-test requirement,
and the gsp_phys_gpu + gsp_phys_hazard_ack operating constraint.
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verified, real boot next
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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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- add docs/03-architecture/08-physical-gpu-integration.md: interfaces that
exist, mechanism options A-E, chosen path (module-owned GPU driven through
its real GSP firmware), sharing policy, decision record
- update 06-host-module-and-hybrid-model, 02-practical-challenges, system
overview, known-knowns, docs/README reading order and CUDA-side docs to
match
- correct stale engine-topology/COPY14 blocker claims across the tree
- add STATE-CURRENT.md as the dated public status snapshot
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