Virtio-nvgpu projekt arendab virtio-seadet, mis v\u00f5imaldab p\u00e4\u00e4seda NVIDIA GPU-ile KVM hyperviisori haldamisel t\u00f6\u00f6tavates k\u00fclg s\u00fcsteemides minimaalse j\u00f5udluse kadumisega. Komponentide hulka kuuluvad k\u00fclgs\u00fcsteemi laaditav kernelimoodul ja virtio-seade, mis t\u00f6\u00f6tab host-keskkonna k\u00fcljel. Kernelimooduli kood on kirjutatud C keeles ja levitatakse GPLv2 litsentsi alusel, virtio-seadmestiku kood on kirjutatud Rustis ja levitatakse Apache 2.0 litsentsi alusel. <\/p>\n
Arendajate hinnangul ei \u00fcleta GPU-le p\u00e4\u00e4semise j\u00f5udluse kadumine 2%. Suurt t\u00f6\u00f6kiirus saavutatakse, suunates NVIDIA p\u00e4devusi ioctl-kutsed otse NVIDIA draiverile ja t\u00f6\u00f6tades NVIDIA draiveri ABI tasemel, ilma API taseme p\u00e4ringute t\u00f5lkimiseta. K\u00fclgs\u00fcsteem kasutab standardsed NVIDIA raamatukogusid ja k\u00f5rgetasemelisi draivereid, mis t\u00f6\u00f6tavad kasutajaruumi tasemel. <\/p>\n
K\u00fclastajate s\u00fcsteemis laaditakse tuumamoodul, mis pakub seadme faile \/dev\/nvidiactl, \/dev\/nvidia0\u2026N, \/dev\/nvidia-uvm ja edastab ioctl() ja mmap() kutsed virtqueue kaudu hostkeskkonna t\u00f6\u00f6tlejale, mis edastab need hosti NVIDIA draiverile. Konteksti vahetuste v\u00e4ltimiseks host-s\u00fcsteemi ja virtuaalmasina vahel peegelduvad k\u00e4sud (mmap) \u00fchises m\u00e4lus, mis on hostkeskkonna ja GPU jaoks ligip\u00e4\u00e4setav. <\/p>\n
Erakordse GPU-le ligip\u00e4\u00e4su suunamise (VFIO Passthrough) erinevalt pakub virtio-nvgpu \u00fchiskasutust \u00fche GPU jaoks mitmelt k\u00fcljelt. virtuaalmasinate<\/a>, ja erinevalt virtio-gpu (Venus, VirGL) t\u00f6\u00f6tab see ABI edastuse kaudu NVIDIA draiverile, mitte graafika API-de Vulkan ja OpenGL t\u00f5lkekihi tasemel. Virtio-nvgpu puuduseks on t\u00e4ieliku isoleerimise puudumine IOMMU baasil (k\u00fclgs\u00fcsteemid t\u00f6\u00f6tavad l\u00e4bi hosti NVIDIA draiveri ja piirduvad ainult ioctl-k\u00f5nede filtreerimisega) ja s\u00f5ltuvus NVIDIA draiveri ABI-st (ABI muutub igas versioonis ja n\u00f5uab virtio-nvgpu kohandamist). <\/p>\n Virtio-nvgpu v\u00f5imalused on piisavad renderdamiseks, video kodeerimiseks ja arvutamiseks API-de kaudu Vulkan, OpenGL, NVENC ja CUDA. P\u00f5hiliseks rakendusvaldkonnaks on nimetatud pilvep\u00f5histe m\u00e4nguteenuste v\u00f5i virtuaalsete t\u00f6\u00f6kohtade loomist, kus m\u00e4ng v\u00f5i graafika rakendus k\u00e4ivitatakse. virtuaalses masinas<\/a>, milles toimub renderdamine, tulemuse riistvaraline kodeerimine NVENC-i abil ja v\u00e4ljundi edastamine kaugkasutajale komprimeeritud videovoona. \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\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 moodul NVIDIA GPU-le juurdep\u00e4\u00e4su v\u00f5imaldamiseks KVM virtuaalmasinatest | ProHoster","description":"Projekt virtio-nvgpu arendab virtio-seadet, mis v\u00f5imaldab KVM-i h\u00fcperviisori all t\u00f6\u00f6tavate k\u00fclgs\u00fcsteemide kaudu p\u00e4\u00e4seda NVIDIA GPU-le minimaalse j\u00f5udluse 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Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"