open-iov.git/tools/guest-diag/run_cycle.sh, branch gr-forwarding

kernel: GR context-promote bisection modes 4-17 and server-managed-ctxbuf registry variant; complete vgsp rename; docs/tooling refresh

2026-10-02T19:13:06+00:00

- gsp_phys_booter: GR promote bisection modes 4-17 (two-phase zero-field VA, batched entries, hVirtMemory, bare VA, KMD SKIP_CTXBUFFER_ALLOC channel, old-interface GPU_INITIALIZE_CTX, FBMEM context buffer, UVM-faithful PA-only, PATCH/PM auxiliary promotes, server-managed no-promote path); PATCH/PM geometry queries and buffers; pre-boot SET_REGISTRY profile selection - gsp_phys_gpu: gsp_phys_rmcall_gr_promote clamp 0..17 and gsp_phys_srv_ctxbuf parameter; registry image variant with RMSetClientRMAllocatedCtxBuffer=0 - vgsp rename across kernel, scripts, tools and docs (module vgsp.ko, /sys/kernel/debug/vgsp/, vgsp-: log prefixes) - risc-v-gsp-rm-debugger user-facing rename and docs/CI refresh; guest-diag tool updates; README/SBOM/install/Makefile sync Live status: CE ladder and P6 guest-copy forwarding green; GR engine context commit still open (all promote shapes accepted or cleanly refused; the channel stays CTXNOTVALID) - see Handoff-vGPU-IO.md Addendum 21 (local).

guest-diag: stream the client's high-VA UVM sysmem pages as pins

2026-09-30T16:54:15+00:00

The DtoH staging buffer lives in the client's high-VA /dev/zero|nvidia mappings (e.g. devptr+0x3c00100), outside the scanner's fixed CE/GR windows; only the host's pagemap read can see it. The guest scanner now walks those VMAs and streams their present pages so the module pins them. run_cycle.sh learns the sema_dbg master switch (auto-on when any watch knob is set).

sema-svc: run CE work before its release, grace unreadable CE entries, payload-pattern audit

2026-09-30T09:58:38+00:00

- CE LAUNCH_DMA releases are now applied after the push's collected work runs: the client reads copied data as soon as it observes the release, so release-first let cuMemcpyDtoH observe a copy that had not executed. - Unreadable CE entries stay pending for a grace window (sema_ce_grace_ms, default 8s) before the release fallback consumes them, so a translation that lands within a service pass lets the push be decoded and its work executed instead of being dropped. - sema_copy_pat matches an 8-byte value against every copy's src/dst first word and scans decoded pushes for it, naming the submission that carries a known payload regardless of size/encoding. - sema-dma-skip logs transfer-shaped launches that collect no op; op log lines carry the channel handle; LAUNCH_DMA inventory follows OPS_LOG. - A real release application now records the release VA, so decoded pushes no longer trigger a spurious fake release.

guest-diag: cdt CDT_WAIT park-at-end (live memory inspection); run_cycle CDT_WAIT passthrough

2026-09-30T09:38:31+00:00

sema-svc: sema_copy_watch (size-keyed src/dst byte audit for the CE data path)

2026-09-30T09:23:28+00:00

sema-svc: sema_ops_log param (default 8) to audit executed CE operands; run_cycle OPS_LOG knob

2026-09-30T09:13:03+00:00

guest-diag: run_cycle enables semfix pushbuffer chain walk by default (CE window has no CPU alias; the vsock stream cannot supply it)

2026-09-30T08:58:22+00:00

guest-diag: run_cycle SKIP_OPS knob + cdt output on serial; cdt richer roundtrip diagnostics

2026-09-30T08:41:06+00:00

guest-diag: run_cycle gdb-launch mode + bpz18 early path trace

2026-09-30T07:24:30+00:00

guest-diag: run_cycle - verify live gdb before declaring arm failure

2026-09-30T06:34:16+00:00