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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-02 15:13:06 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-02 15:13:06 -0400 |
| commit | 4bb8550a72597ec098c6d62a75006a0aba61972e (patch) | |
| tree | bd0ec74c26ff056251052a5e1ba0b59d14fb1f6a /userspace/cuda/docs/04-virtualization-and-emulation.md | |
| parent | 8b491c4e7ebde76c17faddaad47f92898d6c97de (diff) | |
| download | open-iov-4bb8550a72597ec098c6d62a75006a0aba61972e.tar.gz open-iov-4bb8550a72597ec098c6d62a75006a0aba61972e.zip | |
kernel: GR context-promote bisection modes 4-17 and server-managed-ctxbuf registry variant; complete vgsp rename; docs/tooling refresh
- 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).
Diffstat (limited to 'userspace/cuda/docs/04-virtualization-and-emulation.md')
| -rw-r--r-- | userspace/cuda/docs/04-virtualization-and-emulation.md | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/userspace/cuda/docs/04-virtualization-and-emulation.md b/userspace/cuda/docs/04-virtualization-and-emulation.md index 6492a60..cb77652 100644 --- a/userspace/cuda/docs/04-virtualization-and-emulation.md +++ b/userspace/cuda/docs/04-virtualization-and-emulation.md @@ -94,7 +94,7 @@ stock** — but implements the host side differently: | Guest stack | stock | stock (identical constraint) | | Device presented | mediated PCI function with a vGPU profile, backed by host RM | emulated PCI function (mdev/VFIO) backed by the host module + GSP-RM emulation | | Where commands execute | physical GPU via host RM channels | host executes the work the guest encodes (e.g. memsets/copies/semaphore releases) or passes through, depending on the resource | -| Host-side control plane | vGPU manager daemon + VMIOP plugin + host RM | `open-iov-vfio.ko` emulating the GSP-RM interface and device model directly in the kernel | +| Host-side control plane | vGPU manager daemon + VMIOP plugin + host RM | `vgsp.ko` emulating the GSP-RM interface and device model directly in the kernel | | Licensing | GRID license server / vGPU licensing; CUDA gated on license state | no GRID licensing; the driver's vGPU detection must be answered in a way that does not gate CUDA (or the guest must not be told it is a licensed-vGPU-only environment) | | CUDA userspace | unmodified, capability-limited by vGPU profile | unmodified, no profile limits imposed | | Migration | vGPU-specific save/restore protocol with dirty-page tracking | 4-phase migration in the host module (project feature) | |