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).

1 files changed, 1 insertions, 1 deletions

diff --git a/scripts/unload_vgpu_stack.sh b/scripts/unload_vgpu_stack.sh
index e02474a..1cb484a 100755
--- a/scripts/unload_vgpu_stack.sh
+++ b/scripts/unload_vgpu_stack.sh
@@ -20,7 +20,7 @@ for mdev in /sys/bus/mdev/devices/*/; do
 done
 
 # Unload modules in reverse order
-for mod in gsp_vgpu open_iov_vfio nvidia; do
+for mod in gsp_vgpu vgsp nvidia; do
     if lsmod | grep -q "^$mod "; then
         echo "Unloading $mod.ko..."
         sudo rmmod "$mod" 2>/dev/null || echo "  WARNING: $mod still in use"