{"id":31672,"date":"2019-10-31T21:42:29","date_gmt":"2019-10-31T18:42:29","guid":{"rendered":"https:\/\/prohoster.info\/blog\/proekt-netbsd-razvivaet-novyj-gipervizor-nvmm\/"},"modified":"2019-10-31T21:42:29","modified_gmt":"2019-10-31T18:42:29","slug":"proekt-netbsd-razvivaet-novyj-gipervizor-nvmm","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/proekt-netbsd-razvivaet-novyj-gipervizor-nvmm","title":{"rendered":"Projekti NetBSD po zhvillon nj\u00eb hipervizor t\u00eb ri NVMM","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Zhvilluesit e projektit NetBSD njoftuan<\/a><\/noindex> p\u00ebr krijimin e nj\u00eb hipervizori t\u00eb ri dhe t\u00eb grumbullit t\u00eb tij t\u00eb virtualizimit, t\u00eb cilat tashm\u00eb jan\u00eb p\u00ebrfshir\u00eb n\u00eb deg\u00ebn eksperimentale NetBSD-current dhe do t\u00eb ofrohen n\u00eb versionin stabil NetBSD 9. NVMM p\u00ebr momentin \u00ebsht\u00eb i kufizuar n\u00eb mb\u00ebshtetje t\u00eb arkitektur\u00ebs x86_64 dhe ofron dy b backend p\u00ebr t\u00eb angazhuar mekanizmat harduerike t\u00eb virtualizimit: x86-SVM me mb\u00ebshtetje p\u00ebr zgjerimet e virtualizimit t\u00eb CPU AMD dhe x86-VMX p\u00ebr CPU Intel. N\u00eb form\u00ebn e tanishme, \u00ebsht\u00eb e mundur t\u00eb nisen deri n\u00eb 128 makina virtuale n\u00eb nj\u00eb host, secila prej t\u00eb cilave mund t\u00eb p\u00ebrkushtohet deri n\u00eb 256 b\u00ebrthama virtuale procesor\u00ebsh (VCPU) dhe 128 GB RAM. <\/p>\n

NVMM p\u00ebrfshin nj\u00eb drejtues q\u00eb funksionon n\u00eb nivelin e b\u00ebrtham\u00ebs s\u00eb sistemit dhe koordinon qasjen n\u00eb mekanizmat harduerik\u00eb t\u00eb virtualizimit, dhe grumbullin Libnvmm q\u00eb ekzekutohet n\u00eb hap\u00ebsir\u00ebn e p\u00ebrdoruesit. Nd\u00ebrveprimi i komponent\u00ebve t\u00eb b\u00ebrtham\u00ebs dhe hap\u00ebsir\u00ebs s\u00eb p\u00ebrdoruesit b\u00ebhet p\u00ebrmes IOCTL. Nj\u00eb karakteristik\u00eb e NVMM, q\u00eb e ndan at\u00eb nga hipervizor\u00ebt e till\u00eb si KVM, HAXM<\/a><\/noindex> dhe Bhyve, \u00ebsht\u00eb se n\u00eb nivelin e b\u00ebrtham\u00ebs ekzekutohet vet\u00ebm grupi minimal i nevojsh\u00ebm i mb\u00ebshtetjeve rreth mekanizmave harduerik\u00eb t\u00eb virtualizimit, nd\u00ebrsa e gjith\u00eb kodi i emulimit t\u00eb pajisjeve \u00ebsht\u00eb zhvendosur nga b\u00ebrthama n\u00eb hap\u00ebsir\u00ebn e p\u00ebrdoruesit. Ky qasje lejon t\u00eb reduktohet volumi i kodit q\u00eb ekzekutohet me privilegje t\u00eb larta dhe t\u00eb zvog\u00eblohet rreziku i kompromitimit t\u00eb gjith\u00eb sistemit n\u00eb rast sulmesh ndaj dob\u00ebsive n\u00eb hipervizor. P\u00ebr m\u00eb tep\u00ebr, p\u00ebrmir\u00ebsohet duksh\u00ebm debagimi dhe testimi i fuzzing t\u00eb projektit. <\/p>\n

Megjithat\u00eb, Libnvmm vet\u00eb nuk p\u00ebrmban funksione emulatori, por ofron vet\u00ebm nj\u00eb API q\u00eb lejon integrimin e suportit NVMM n\u00eb emulator\u00ebt ekzistues, si\u00e7 \u00ebsht\u00eb QEMU. API mbulon funksione si krijimi dhe ekzekutimi i makin\u00ebs virtuale, alokimi i memories p\u00ebr sistemin mik, ndarja e VCPU-ve. P\u00ebr t\u00eb rritur sigurin\u00eb dhe p\u00ebr t\u00eb zvog\u00ebluar vektor\u00ebt e mundsh\u00ebm t\u00eb sulmit, libnvmm ofron vet\u00ebm funksionet e k\u00ebrkuara qart\u00eb \u2014 p\u00ebr default, trajtuesit e komplikuar nuk aktivizohen automatikisht dhe madje mund t\u00eb mos p\u00ebrdoren n\u00ebse mund t\u00eb anashkalohet pa to. NVMM p\u00ebrpiqet t\u00eb p\u00ebrdor\u00eb zgjidhje t\u00eb thjeshta, pa r\u00ebn\u00eb n\u00eb komplike dhe duke lejuar kontrollin mbi sa m\u00eb shum\u00eb aspekte t\u00eb funksionimit.<\/p>\n

\"Projekti<\/a><\/noindex><\/center><\/p>\n

Nj\u00eb pjes\u00eb q\u00eb funksionon n\u00eb nivelin e b\u00ebrtham\u00ebs s\u00eb NVMM \u00ebsht\u00eb e integruar mjaft ngusht\u00eb me b\u00ebrtham\u00ebn e NetBSD dhe lejon p\u00ebrmir\u00ebsimin e performanc\u00ebs duke reduktuar numrin e kalimeve t\u00eb kontekstit midis sistemit operativ mysafir dhe mjedisit host. N\u00eb an\u00ebn e hap\u00ebsir\u00ebs s\u00eb p\u00ebrdoruesit, libnvmm p\u00ebrpiqet t\u00eb agregoj\u00eb operacionet standarde t\u00eb I\/O dhe nuk i drejtohet thirrjeve sistemike pa nevoj\u00eb. Sistemi i menaxhimit t\u00eb memories \u00ebsht\u00eb i bazuar n\u00eb n\u00ebn-sistemin pmap, i cili lejon d\u00ebbimin e faqeve t\u00eb memories t\u00eb sistemeve mysafire p\u00ebr n\u00eb hap\u00ebsir\u00ebn e ndihm\u00ebs n\u00eb rast t\u00eb munges\u00ebs s\u00eb memories n\u00eb sistem. NVMM \u00ebsht\u00eb i liruar nga bllokimet globale dhe scalez mjaft mir\u00eb, duke lejuar p\u00ebrdorimin e b\u00ebrthamave t\u00eb ndryshme CPU p\u00ebr ekzekutimin e makinave virtuale mysafire t\u00eb ndryshme. <\/p>\n

Nj\u00eb zgjidhje e p\u00ebrgatitur mbi QEMU p\u00ebrdor NVMM p\u00ebr t\u00eb angazhuar mekanizmat harduerik\u00eb t\u00eb virtualizimit. Po punojm\u00eb p\u00ebr t\u00eb p\u00ebrfshir\u00eb patch-at e p\u00ebrgatitur n\u00eb p\u00ebrb\u00ebrjen kryesore t\u00eb QEMU. Kombinimi QEMU+NVMM tashm\u00eb mund\u00ebson<\/a><\/noindex> ka filluar me sukses t\u00eb p\u00ebrdor\u00eb sisteme mysafire me FreeBSD, OpenBSD, Linux, Windows XP\/7\/8.1\/10 dhe sisteme t\u00eb tjera n\u00eb sistemet x86_64 me procesor\u00eb AMD dhe Intel (vet\u00eb NVMM nuk \u00ebsht\u00eb i lidhur me nj\u00eb arkitektur\u00eb t\u00eb caktuar, p\u00ebr shembull, duke krijuar backend-in p\u00ebrkat\u00ebs mund t\u00eb funksionoj\u00eb n\u00eb sistemet ARM64). Si fusha t\u00eb aplikimeve t\u00eb m\u00ebtejshme, NVMM gjithashtu v\u00ebren izolimin e aplikacioneve t\u00eb ve\u00e7anta n\u00eb sandbox.<\/p>\n

\"Projekti<\/a><\/noindex><\/center><\/p>\n

<\/a><\/noindex><\/p>\n

Burimi: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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