From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [IPv6:2a01:7e0:0:424::9]) by lore.proxmox.com (Postfix) with ESMTPS id B306C1FF15E for ; Tue, 20 Jan 2026 14:13:52 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id DD77FFFDE; Tue, 20 Jan 2026 14:14:02 +0100 (CET) From: Christoph Heiss To: pve-devel@lists.proxmox.com Date: Tue, 20 Jan 2026 14:13:08 +0100 Message-ID: <20260120131319.949986-1-c.heiss@proxmox.com> X-Mailer: git-send-email 2.52.0 MIME-Version: 1.0 X-Bm-Milter-Handled: 55990f41-d878-4baa-be0a-ee34c49e34d2 X-Bm-Transport-Timestamp: 1768914752219 X-SPAM-LEVEL: Spam detection results: 0 AWL 0.050 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment RCVD_IN_VALIDITY_CERTIFIED_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. 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[lib.rs, sysfstools.pm, mod.rs, nvidia.com, readme.md, nv-list-creatable-vgpus.pl, proxmox.com, generate-nvml-bindings.sh, bindings.rs, nvidia.rs] Subject: [pve-devel] [PATCH proxmox-{ve, perl}-rs/common 0/4] use native libnvidia-ml library for vGPU info X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox VE development discussion Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pve-devel-bounces@lists.proxmox.com Sender: "pve-devel" Adds support for using the NVML (Nvidia management library) [0] directly to retrieve information about available (or concrete: creatable at VM start) vGPUs for Nvidia GPUs. This will allow in the future to support anything related to Nvidia cards/devices in a more stable manner over different driver version, as NVML provides a proper, independent abstraction. E.g. the sysfs interface exposed by the driver may change (as it did recently for kernels 6.8+) and might contain less information, as is now already the case. Currently, the "description" column in the mdev type dropdown under Hardware -> hostpci* is empty for Nvidia vGPUs, since the 6.8 kernel IIRC, due to driver changes. This restores this functionality, with the description being the result of `proxmox_ve_vfio::VgpuTypeInfo::description()`, for example: class=NVS,max-instances=24,max-instances-per-vm=1, framebuffer-size=1024MiB,num-heads=1,max-resolution=1280x1024, license=GRID-Virtual-Apps,3.0 In the future, these bindings will also be needed to implement support for Nvidia MIG (Multi-Instance GPU), for which information are not exposed in sysfs at all. See also the series [1] sent by Dominik introducing a new hookscript phase, to, among other things, support manually setting up MIG. [0] https://developer.nvidia.com/management-library-nvml [1] https://lore.proxmox.com/pve-devel/20260114155043.3313473-1-d.csapak@proxmox.com/ Apply order =========== proxmox-ve-rs -> proxmox-perl-rs -> pve-common, same as this series is laid out. Each package will require a bump of previous one. Diffstat ======== proxmox-ve-rs: Christoph Heiss (2): vfio: add crate for interacting with vfio host devices vfio: add rust-native interface for accessing NVIDIA vGPU info Cargo.toml | 2 + proxmox-ve-vfio/Cargo.toml | 18 + proxmox-ve-vfio/README.md | 25 + proxmox-ve-vfio/debian/changelog | 5 + proxmox-ve-vfio/debian/control | 38 + proxmox-ve-vfio/debian/copyright | 18 + proxmox-ve-vfio/debian/debcargo.toml | 3 + .../examples/nv_list_creatable_vgpus.rs | 15 + proxmox-ve-vfio/generate-nvml-bindings.sh | 27 + proxmox-ve-vfio/src/lib.rs | 6 + proxmox-ve-vfio/src/nvidia/mod.rs | 126 + proxmox-ve-vfio/src/nvidia/nvml/bindings.rs | 2290 +++++++++++++++++ proxmox-ve-vfio/src/nvidia/nvml/mod.rs | 237 ++ 13 files changed, 2810 insertions(+) create mode 100644 proxmox-ve-vfio/Cargo.toml create mode 100644 proxmox-ve-vfio/README.md create mode 100644 proxmox-ve-vfio/debian/changelog create mode 100644 proxmox-ve-vfio/debian/control create mode 100644 proxmox-ve-vfio/debian/copyright create mode 100644 proxmox-ve-vfio/debian/debcargo.toml create mode 100644 proxmox-ve-vfio/examples/nv_list_creatable_vgpus.rs create mode 100755 proxmox-ve-vfio/generate-nvml-bindings.sh create mode 100644 proxmox-ve-vfio/src/lib.rs create mode 100644 proxmox-ve-vfio/src/nvidia/mod.rs create mode 100644 proxmox-ve-vfio/src/nvidia/nvml/bindings.rs create mode 100644 proxmox-ve-vfio/src/nvidia/nvml/mod.rs proxmox-perl-rs: Christoph Heiss (1): pve: add bindings for proxmox-ve-vfio pve-rs/Cargo.toml | 1 + pve-rs/Makefile | 3 +- pve-rs/debian/control | 1 + pve-rs/examples/nv-list-creatable-vgpus.pl | 20 ++++++++++++ pve-rs/src/lib.rs | 1 + pve-rs/src/vfio/mod.rs | 6 ++++ pve-rs/src/vfio/nvidia.rs | 38 ++++++++++++++++++++++ 7 files changed, 69 insertions(+), 1 deletion(-) create mode 100755 pve-rs/examples/nv-list-creatable-vgpus.pl create mode 100644 pve-rs/src/vfio/mod.rs create mode 100644 pve-rs/src/vfio/nvidia.rs pve-common: Christoph Heiss (1): sysfs: use new PVE::RS::VFIO::Nvidia module to retrieve vGPU info src/PVE/SysFSTools.pm | 45 ++++++++++++++++++++++++++++++------------- 1 file changed, 32 insertions(+), 13 deletions(-) -- 2.47.0 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel