From 6640cb7b6fbc9725561e3ef35b06f8349312b46a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fabiano=20Fid=C3=AAncio?= Date: Fri, 24 Jul 2026 19:41:37 +0200 Subject: [PATCH] gpu-extension: fix Fabric Manager topology path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Point Fabric Manager at the composable GPU extension mount so NVSwitch topology files remain reachable from the driver-agnostic base image. Fixes: #13432 Signed-off-by: Fabiano Fidêncio --- tools/osbuilder/rootfs-builder/nvidia/nvidia_rootfs.sh | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/osbuilder/rootfs-builder/nvidia/nvidia_rootfs.sh b/tools/osbuilder/rootfs-builder/nvidia/nvidia_rootfs.sh index c98111acb5..c75af7002f 100644 --- a/tools/osbuilder/rootfs-builder/nvidia/nvidia_rootfs.sh +++ b/tools/osbuilder/rootfs-builder/nvidia/nvidia_rootfs.sh @@ -592,6 +592,14 @@ partition_gpu_extension() { # GPU configs (fabricmanager.cfg, nvlsm.conf, ...). [[ -d usr/share/nvidia ]] && cp -a usr/share/nvidia/. "${extension}/usr/share/nvidia/" + # The topology files are only available under the GPU extension mount. + # Point Fabric Manager there so it can find them. + local fm_cfg="${extension}/usr/share/nvidia/nvswitch/fabricmanager.cfg" + if [[ -f "${fm_cfg}" ]]; then + sed -i 's|^TOPOLOGY_FILE_PATH=.*|TOPOLOGY_FILE_PATH=/run/kata-extensions/gpu/usr/share/nvidia/nvswitch|' \ + "${fm_cfg}" + fi + # GPU firmware (GSP, ...); NVRC binds this onto /lib/firmware/nvidia. [[ -d lib/firmware/nvidia ]] && cp -a lib/firmware/nvidia "${extension}/lib/firmware/"