A virtio-nvgpu project is developing a virtio device that allows access to NVIDIA GPUs from guest systems running under the KVM hypervisor, with minimal performance loss. It includes a kernel module loaded in the guest system and a virtio device running on the host environment. The kernel module code is written in C and distributed under the GPLv2 license, while the virtio device code is written in Rust and distributed under the Apache 2.0 license. <\/p>\n
According to developers' estimates, performance loss when accessing the GPU does not exceed 2%. High speed is achieved by redirecting ioctl calls to the native NVIDIA driver and operating at the ABI level of the NVIDIA driver, without translating requests at the API level. On the guest system side, standard libraries and high-level NVIDIA drivers operate in user space. <\/p>\n
A vend\u00e9gl\u00e1t\u00f3 rendszerbe bet\u00f6lt\u0151dik egy kernel modul, amely el\u00e9rhet\u0151v\u00e9 teszi a k\u00f6vetkez\u0151 eszk\u00f6zf\u00e1jlokat: \\\/dev\\nvidiactl, \\\/dev\\nvidia0\u2026N, \\\/dev\\nvidia-uvm, \u00e9s az ioctl() illetve mmap() h\u00edv\u00e1sokat a virtu\u00e1lis soron kereszt\u00fcl a h\u00e1zigazda k\u00f6rnyezet feldolgoz\u00f3j\u00e1hoz tov\u00e1bb\u00edtja, amely azt\u00e1n az NVIDIA h\u00e1zigazda illeszt\u0151programj\u00e1hoz tov\u00e1bb\u00edtja. A h\u00e1zigazda rendszer \u00e9s a virtu\u00e1lis g\u00e9p k\u00f6z\u00f6tti kontextusv\u00e1lt\u00e1sok elker\u00fcl\u00e9se \u00e9rdek\u00e9ben a parancsok pufferei (mmap) a h\u00e1zigazdai k\u00f6rnyezet \u00e9s a GPU sz\u00e1m\u00e1ra el\u00e9rhet\u0151 k\u00f6z\u00f6s mem\u00f3ria ter\u00fcletre t\u00fck\u00f6rk\u00e9nt jelennek meg. <\/p>\n
Unlike exclusive GPU access passthrough (VFIO Passthrough), the virtio-nvgpu project provides shared access to a single GPU from multiple instances. virtu\u00e1lis g\u00e9pekhez<\/a>, and unlike virtio-gpu (Venus, VirGL), it operates through ABI passthrough to the NVIDIA driver rather than at the level of translating Vulkan and OpenGL graphics APIs. The downsides of virtio-nvgpu include the lack of full isolation based on IOMMU (guest systems operate through the host\u2019s NVIDIA driver and are limited only by ioctl call filtering) and the dependency on the NVIDIA driver ABIs (the ABI changes with each version and requires adaptation of virtio-nvgpu). <\/p>\n The capabilities of virtio-nvgpu are sufficient for rendering, video encoding, and computations using the Vulkan, OpenGL, NVENC, and CUDA APIs. Its primary use case includes creating cloud gaming services or virtual workstations, where a game or graphical application runs in virtu\u00e1lis g\u00e9pben<\/a>, amelyben a renderel\u00e9s zajlik, az NVENC haszn\u00e1lat\u00e1val t\u00f6rt\u00e9nik a kimenet hardverk\u00f3dol\u00e1sa, \u00e9s a kimenet t\u00f6m\u00f6r\u00edtett vide\u00f3folyamban ker\u00fcl \u00e1tad\u00e1sra a t\u00e1voli felhaszn\u00e1l\u00f3nak. \u041f\u0440\u043e\u0435\u043a\u0442 virtio-nvgpu \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 virtio-\u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0435 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a GPU NVIDIA \u0438\u0437 \u0433\u043e\u0441\u0442\u0435\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c, \u0437\u0430\u043f\u0443\u0449\u0435\u043d\u043d\u044b\u0445 \u043f\u043e\u0434 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 KVM, \u0441 \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u043f\u043e\u0442\u0435\u0440\u0435\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438. \u0412 \u0441\u043e\u0441\u0442\u0430\u0432 \u0432\u0445\u043e\u0434\u0438\u0442 \u043c\u043e\u0434\u0443\u043b\u044c \u044f\u0434\u0440\u0430, \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u0435\u043c\u044b\u0439 \u0432 \u0433\u043e\u0441\u0442\u0435\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0438 virtio-\u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e, \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u043e\u0435 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0445\u043e\u0441\u0442-\u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f. \u041a\u043e\u0434 \u043c\u043e\u0434\u0443\u043b\u044f \u044f\u0434\u0440\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438 \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2, \u0430 \u043a\u043e\u0434 virtio-\u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 Rust […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-183477","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47virtio-nvgpu \u2014 modul az NVIDIA GPU el\u00e9r\u00e9s\u00e9hez KVM virtu\u00e1lis g\u00e9pekb\u0151l | ProHoster","description":"A virtio-nvgpu projekt egy virtio-eszk\u00f6zt fejleszt, amely lehet\u0151v\u00e9 teszi az NVIDIA GPU-hoz val\u00f3 hozz\u00e1f\u00e9r\u00e9st a KVM hypervisor alatt fut\u00f3 vend\u00e9g rendszerekb\u0151l minim\u00e1lis teljes\u00edtm\u00e9nyvesztes\u00e9ggel.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/virtio-nvgpu-module-for-accessing-nvidia-gpus-from-kvm-virtual-machines","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47virtio-nvgpu \u2014 \u043c\u043e\u0434\u0443\u043b\u044c \u0434\u043b\u044f \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a GPU NVIDIA \u0438\u0437 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u043c\u0430\u0448\u0438\u043d KVM | ProHoster","og:description":"\u041f\u0440\u043e\u0435\u043a\u0442 virtio-nvgpu \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 virtio-\u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0435 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a GPU NVIDIA \u0438\u0437 \u0433\u043e\u0441\u0442\u0435\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c, \u0437\u0430\u043f\u0443\u0449\u0435\u043d\u043d\u044b\u0445 \u043f\u043e\u0434 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 KVM, \u0441 \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u043f\u043e\u0442\u0435\u0440\u0435\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/virtio-nvgpu-module-for-accessing-nvidia-gpus-from-kvm-virtual-machines","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2026-09-26T14:53:23+00:00","article:modified_time":"2026-09-26T14:53:28+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/183477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/comments?post=183477"}],"version-history":[{"count":1,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/183477\/revisions"}],"predecessor-version":[{"id":183478,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/183477\/revisions\/183478"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=183477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=183477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=183477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"