open-iov.git/tools/guest-diag/cycle_cdt.sh, branch m33Open-IOV vGPU-IO: host-side GSP emulation for unmodified NVIDIA guest drivers
https://git.vgpu.io/open-iov.git/atom?h=m332026-10-02T19:13:06+00:00kernel: GR context-promote bisection modes 4-17 and server-managed-ctxbuf registry variant; complete vgsp rename; docs/tooling refresh2026-10-02T19:13:06+00:00Arthur Hanson Rasmussonarthur@vgpu.io2026-10-02T19:13:06+00:00urn:sha1:c9bf1cf098c8ea4daeb3e6c9b274a9025c03045d
- 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-<subsystem>: 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).
kernel: validate learned semaphore maps and post guest GPU events2026-09-24T05:58:15+00:00Arthur Hanson Rasmussonarthur@vgpu.io2026-09-24T05:58:15+00:00urn:sha1:0b799c9487477fd31a56e0c386e6ba3896c4c569
- admit {GPU VA -> PA} pairs only when the preceding bytes form a valid
client memory descriptor header (type 0/1, CPU+GPU mapped bits), prefer
validated pairs over headerless candidates under first-wins dedup, and
invalidate the translation cache on every rebuild; fixes stale identity
entries shadowing live pool pages and lets the guest UVM channel
bring-up complete on its own
- capture OS event allocations (class 0x79) and post event records
(function 0x1003) into the guest status queue when a channel's busy
notification is consumed, with a broadcast fallback, serialized with
replies via a queue lock
- add BAR0 shadow introspection (dump_bar0/scan_bar0) and guest-side
diagnostic scripts for the VM cycle