diff options
Diffstat (limited to 'docs/03-architecture/11-physical-backend-guest-wiring.md')
| -rw-r--r-- | docs/03-architecture/11-physical-backend-guest-wiring.md | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/docs/03-architecture/11-physical-backend-guest-wiring.md b/docs/03-architecture/11-physical-backend-guest-wiring.md index 55700b5..8c38680 100644 --- a/docs/03-architecture/11-physical-backend-guest-wiring.md +++ b/docs/03-architecture/11-physical-backend-guest-wiring.md @@ -1,11 +1,13 @@ # Physical Backend Guest Wiring: Driving the Guest-Facing Emulation from the Live GSP-RM Session -> **Status: P0-P3 implemented (2026-10-02).** The backend API skeleton (P0), -> the mdev-owned lifecycle (P1, fail-open; the async FWSEC boot on that path -> is an open defect off the critical path), the static-config identity -> overlay (P2, verified live in an A/B run) and the read-only control +> **Status: P0-P5(w1) implemented (2026-10-02).** The backend API skeleton +> (P0), the mdev-owned lifecycle (P1, fail-open; the async FWSEC boot on that +> path is an open defect off the critical path), the static-config identity +> overlay (P2, verified live in an A/B run), the read-only control > forwarding whitelist (P3, default off, verified live: ok=22/fallback=2, -> smoke `ALL OK` 64/64) are in the tree. The physical +> smoke `ALL OK` 64/64) and the P5 wave-1 guest-submission shadow execution +> (default off, verified live: 514 real CE copies during a green guest smoke +> `ALL OK` 64/64) are in the tree. The physical > backend itself is live: the module-owned > GSP-RM completes initialization on the real TU104, serves the full > static-config reply, and shuts down gracefully. The host resource-manager @@ -473,6 +475,14 @@ go-ahead, recovery plan, pstore, never unattended * **Rollback:** parameter off (guest returns to echo path). ### P5 - Work forwarding + completion relay (interim, host buffers) +* **Status (2026-10-02): wave 1 implemented and verified live (default off).** + With `gsp_phys_work_forward=1` the sema pump shadow-executes eligible CE + pushes on the physical engine through one ordered work item running the + module-owned ladder copy; the software release path stays authoritative and + no guest memory/VA is touched. Live: guest smoke GREEN `ALL OK` 64/64 with + 514 real CE copies (194 requests coalesced/dropped while one was in flight, + 0 refusals, 0 timeouts). Wave 2 (hardware-primary release relay) and P6 + remain. * **Scope:** the debugfs ladder's real-submission half is **done** (cycle 25: channel allocates, page directory commits, `REAL COPY OK` on the physical CE in VA mode). The remaining work: bind each guest CE/GR channel to a real |