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authorArthur Hanson Rasmusson <arthur@vgpu.io>2026-10-30 13:08:30 -0400
committerArthur Hanson Rasmusson <arthur@vgpu.io>2026-10-30 13:08:30 -0400
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parent0b0b86d88cd1ef499db6817e605fff888bc7a16c (diff)
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site: 2026-10-30 wiki refresh - new Project Goals, Performance and Interfaces and Stability pages; GSP explainer expanded (bare-metal behaviour + the two emulation modes); graphics pages (Graphics Execution, OpenGL, Vulkan, DirectX) with two new diagrams; status refresh across 15 pages; canonical docs updated (README status table, purpose-and-scope, performance contract); published to open-iov.org (67 pages, 0 problems)
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> unmodified 570.144 guest. Canonical source:
> [`../docs/03-architecture/07-driver-lifecycle-field-guide.md`](../docs/03-architecture/07-driver-lifecycle-field-guide.md); if this page and the docs tree disagree, the docs tree wins.
>
-> Status: 2026-10-12, tree `master @ 2f066727`. Tags: `[live]` observed with the stock guest driver; `[design]` stages documented ahead of arrival.
+> Status: 2026-10-30, tree `master @ b4930168`. Tags: `[live]` observed with the stock guest driver; `[design]` stages documented ahead of arrival.
## 1. How to read this page
@@ -107,7 +107,7 @@ vgsp-rm: GSP_RM_ALLOC class=0x... paramsSize=... hClient=... hParent=... hObject
**Guest:** `cuInit` → `UVM_REGISTER_GPU` → channel-manager creation → page-tree initialization; each UVM channel does a first push and waits on a semaphore. **Emulation today:** the host decodes the pushes UVM generates and executes their memsets, copies and semaphore releases in software by translating the semaphore VA to a guest physical address — a bridge, not forwarding: no work reaches the physical GPU through it yet.
-**Progress:** context creation now returns (the driver-API smoke completes end to end) and the frontier is execution. The host GR ladder allocates a GR0 channel and a compute-class object; a first semaphore push against an uncommitted GR context faulted `CTXNOTVALID`, and a following `GPU_PROMOTE_CTX` wedged GSP-RM into its designed locked fail-safe. Later, a forwarded guest CUDA launch reached the front-end (ring entry fetched, methods executed) with no observed inline launch-descriptor install and no grid dispatched; context validity at dispatch is ruled out. See [`Execution-Frontier.md`](Execution-Frontier.md). The roadmap from here is:
+**Progress:** context creation returns (the driver-API smoke completes end to end) and guest CUDA kernel launches now execute on the physical engine with engine-authored completions relayed to the guest — verified green clients on fresh boots. Earlier walls are closed: the host GR ladder's `CTXNOTVALID` fault and the `GPU_PROMOTE_CTX` wedge led to the commit-chain work, and the forwarded guest launch that once reached the front-end without a dispatched grid now executes end to end. The current leading edge is the staged-transfer class, the every-boot acceptance campaign, per-guest isolation, and the graphics pixel frontier. See [`Execution-Frontier.md`](Execution-Frontier.md) and [`Graphics-Execution.md`](Graphics-Execution.md). The roadmap from here is:
```text
UVM registers → cuInit returns → context creation → memory allocation