{"id":183477,"date":"2026-09-26T16:53:23","date_gmt":"2026-09-26T14:53:23","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/virtio-nvgpu-modul-dlya-predostavleniya-dostupa-k-gpu-nvidia-iz-virtualnyh-mashin-kvm"},"modified":"2026-09-26T16:53:28","modified_gmt":"2026-09-26T14:53:28","slug":"virtio-nvgpu-module-for-accessing-nvidia-gpus-from-kvm-virtual-machines","status":"publish","type":"post","link":"https:\/\/prohoster.info\/lv\/blog\/news\/virtio-nvgpu-module-for-accessing-nvidia-gpus-from-kvm-virtual-machines","title":{"rendered":"virtio-nvgpu \u2013 modulis GPU NVIDIA piek\u013cuvei no KVM virtu\u0101l\u0101m ma\u0161\u012bn\u0101m","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Projekts virtio-nvgpu att\u012bsta virtio ier\u012bci, kas \u013cauj piek\u013c\u016bt NVIDIA GPU no viesu sist\u0113m\u0101m, kas darbojas ar KVM hipervizoru, ar minim\u0101lu veiktsp\u0113jas zudumu. Tas ietver kodola moduli, kas tiek iel\u0101d\u0113ts viesu sist\u0113m\u0101, un virtio ier\u012bci, kas darbojas saimniekvid\u0113. Kodola modulis ir uzrakst\u012bts C valod\u0101 un izplat\u012bts saska\u0146\u0101 ar GPLv2 licences nosac\u012bjumiem, bet virtio ier\u012bces kods ir uzrakst\u012bts Rust un izplat\u012bts saska\u0146\u0101 ar Apache 2.0 licenci. <\/p>\n

Saska\u0146\u0101 ar izstr\u0101d\u0101t\u0101ju nov\u0113rt\u0113jumu veiktsp\u0113jas zudums piek\u013c\u016bstot GPU nep\u0101rsniedz 2%. Augsta darba \u0101truma sasnieg\u0161ana tiek pan\u0101kta, novirzot ioctl zvanu uz NVIDIA ori\u0123in\u0101lo draiveri un str\u0101d\u0101jot uz NVIDIA draivera ABI l\u012bme\u0146a, bez piepras\u012bjumu tulko\u0161anas API l\u012bmen\u012b. Viesu sist\u0113m\u0101 tiek izmantotas standarta bibliot\u0113kas un augsta l\u012bme\u0146a NVIDIA draiveri, kas darbojas lietot\u0101ja viet\u0101. <\/p>\n

Viesu sist\u0113m\u0101 tiek iel\u0101d\u0113ts kodola modulis, kas nodro\u0161ina ier\u012b\u010du failus \/dev\/nvidiactl, \/dev\/nvidia0\u2026N, \/dev\/nvidia-uvm un novirza ioctl() un mmap() piepras\u012bjumus caur virtqueue uz apstr\u0101d\u0101t\u0101ju viesma\u0161\u012bn\u0101, kas tos nodod viesma\u0161\u012bnas NVIDIA vad\u012bt\u0101jam. Lai izvair\u012btos no konteksta mai\u0146\u0101m starp viesma\u0161\u012bnu un virtu\u0101lo ma\u0161\u012bnu, komandu buferi tiek atspogu\u013coti (mmap) kop\u0113j\u0101 atmi\u0146\u0101, pieejam\u0101 viesma\u0161\u012bnai un GPU. <\/p>\n

At\u0161\u0137ir\u012bb\u0101 no ekskluz\u012bv\u0101 piek\u013cuves caur GPU (VFIO Passthrough) projekts virtio-nvgpu nodro\u0161ina koplietotu piek\u013cuvi vienam GPU no vair\u0101k\u0101m virtu\u0101lo ma\u0161\u012bnu<\/a>, un at\u0161\u0137ir\u012bb\u0101 no virtio-gpu (Venus, VirGL) tas darbojas caur ABI p\u0101rs\u016bt\u012b\u0161anu uz NVIDIA draiveri, nevis uz Vulkan un OpenGL grafisko API l\u012bme\u0146a tulko\u0161anas. Virtio-nvgpu m\u012bnusi ir piln\u012bgas izol\u0101cijas tr\u016bkums, pamatojoties uz IOMMU (viesu sist\u0113mas darbojas caur saimniekdraiveri NVIDIA un ir ierobe\u017eotas tikai ar ioctl piepras\u012bjumu filtr\u0113\u0161anu), un saist\u012bba ar NVIDIA draiveru ABI (ABI main\u0101s katr\u0101 versij\u0101 un prasa virtio-nvgpu piel\u0101go\u0161anu). <\/p>\n

Virtio-nvgpu iesp\u0113jas ir pietiekamas render\u0113\u0161anai, video kod\u0113\u0161anai un apr\u0113\u0137iniem, izmantojot API Vulkan, OpenGL, NVENC un CUDA. Galven\u0101s pielieto\u0161anas jomas ietver m\u0101ko\u0146u sp\u0113\u013cu pakalpojumu vai virtu\u0101lo darba vietu izveidi, kur sp\u0113le vai grafisk\u0101 programma tiek palaista. virtu\u0101l\u0101 ma\u0161\u012bn\u0101<\/a>, kur tiek veikts render\u0113\u0161ana, aparat\u016bras kod\u0113\u0161ana ar NVENC un rezult\u0101ta nodo\u0161ana att\u0101lin\u0101tam lietot\u0101jam saspie\u0161anas videostr\u016bm\u0113.
\n
Avots: opennet.lv<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 modulis, kas nodro\u0161ina piek\u013cuvi NVIDIA GPU no KVM virtu\u0101laj\u0101m ma\u0161\u012bn\u0101m | ProHoster","description":"Virtio-nvgpu projekts att\u012bsta virtio ier\u012bci, kas \u013cauj piek\u013c\u016bt NVIDIA GPU no viesdatoriem, kas darbojas KVM hipervizora p\u0101rvald\u012bb\u0101, ar minim\u0101liem veiktsp\u0113jas 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