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Diffstat (limited to 'legacy-driver-guest/README.md')
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diff --git a/legacy-driver-guest/README.md b/legacy-driver-guest/README.md new file mode 100644 index 0000000..309613a --- /dev/null +++ b/legacy-driver-guest/README.md @@ -0,0 +1,21 @@ +# legacy-driver-guest — historical guest-side driver (NOT BUILT) + +This directory preserves the **old guest-side vGPU driver** (`gsp-vgpu.ko`) +from the pre-refactor architecture, where GSP RPC handling lived in a kernel +module *inside the guest*. + +It is kept for reference only: + +- The current architecture is **host-only GSP emulation** — the guest runs + the stock, unmodified `nvidia.ko`, and there is no Open-IOV code in the + guest. See `docs/GSP_EMULATION_ARCHITECTURE.md`. +- Nothing here is part of any build target (the top-level Makefile no longer + references it). +- `kernel-tests/` holds the old test modules written against this driver's + internal API (`gsp_core.h`); they are superseded by + `kernel/tests/gsp_emulation_test.c`, which tests the host-side emulation + engine through `gsp_emu_process_rpc()`. + +Do not add new code here. If you need behavior that only exists in this tree +(e.g. WPR eventfd work, migration WPR state), port it into the host-side +`kernel/` modules rather than reviving the guest driver. |