open-iov.git - Open-IOV vGPU-IO: host-side GSP emulation for unmodified NVIDIA guest drivers

	Commit message (Collapse)	Author	Age
*	spdx: add BSD-3-Clause identifiers to userspace/tools/scripts sources	Arthur Hanson Rasmusson	4 days
\| \| \| \| \| \| \| \| \| \| \|	Sweep of the 155 tracked C/Python/shell files under userspace/ (excluding the MIT-licensed vendored userspace/extern/), tools/ and scripts/ that had no per-file license identifier. Each gains the minimal two-line header in the area's existing form: 'SPDX-License-Identifier: BSD-3-Clause' plus 'Copyright (c) 2026 Open-IOV contributors'; shebang and coding lines stay first. No other content touched. kernel/** is deliberately out of scope (recorded as a follow-up in CODESTD-REPORT-2026-10-08.md): its SPDX coverage and MODULE_LICENSE normalization need their own GPL-2.0 pass.
*	guest-diag: cdt2 mapping scan is opt-in (CDT_SCAN=1); it can wedge the client	Arthur Hanson Rasmusson	13 days
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*	guest-diag: cdt2 payload scan limited to anon mappings (device-mapping reads ↵	Arthur Hanson Rasmusson	13 days
\| \| \| \|	can block)
*	guest-diag: cdt2 payload scan only touches anon/device mappings (avoid ↵	Arthur Hanson Rasmusson	13 days
\| \| \| \|	SIGBUS on truncated file maps)
*	guest-diag: cdt2 scans its own mappings for the payload after HtoD (DtoH ↵	Arthur Hanson Rasmusson	13 days
\| \| \| \|	mechanism probe)
*	sema-svc: decode GRCE inline-data DMA (small HtoD path)	Arthur Hanson Rasmusson	13 days
	The 256-byte cuMemcpyHtoD payload never appears in any CE push: CUDA submits it on the compute channel as a compute-class DMA whose source is the push's own inline data (LINE_LENGTH_IN=256, OFFSET_OUT=<device VA>, LAUNCH_DMA=0x41, LOAD_INLINE_DATA 64 dwords, then the channel's SET_REPORT_SEMAPHORE release). The CE-shaped decoder skipped the data run (opcode 3) and no GR work ran at all. - Decode NVC5C0 GRCE methods on subchannel 1 (LINE_LENGTH_IN, LINE_COUNT, OFFSET_OUT/UPPER, LAUNCH_DMA) and the opcode-3 LOAD_INLINE_DATA run. - svc_grce_inline_write resolves the destination VA through trusted sources (pins, map, published page directories, targeted rm_mem resolve), pins the page and writes into vidmem or guest RAM; budgeted sema-grce logs name the target or report UNRESOLVED. - cdt2 test binary gains CDT_CP_PAUSE / CDT_HP_PAUSE for live inspection of the copy path; pushed by push_guest_tools.sh.