{"id":40553,"date":"2020-02-01T20:58:27","date_gmt":"2020-02-01T17:58:27","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/vypusk-gipervizora-bareflank-2-0"},"modified":"2020-02-01T20:58:27","modified_gmt":"2020-02-01T17:58:27","slug":"vypusk-gipervizora-bareflank-2-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/vypusk-gipervizora-bareflank-2-0","title":{"rendered":"Udgivelse af hypervisor Bareflank 2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Bareflank\/hypervisor\/releases\/tag\/v2.0\">Har fundet sted<\/a><\/noindex> udgaven af hypervisoren <noindex><a rel=\"nofollow\" href=\"http:\/\/bareflank.github.io\/hypervisor\/\">Bareflank 2.0<\/a><\/noindex>, der leverer v\u00e6rkt\u00f8jer til hurtig udvikling af specialiserede hypervisorer. Bareflank er skrevet i C++ og underst\u00f8tter C++ STL. Den modul\u00e6re arkitektur i Bareflank g\u00f8r det nemt at udvide de eksisterende funktioner i hypervisoren og skabe egne varianter af hypervisorer, b\u00e5de dem der k\u00f8rer p\u00e5 hardware (som Xen) og dem der k\u00f8rer i det eksisterende softwaremilj\u00f8 (som VirtualBox). Der er mulighed for at k\u00f8re operativsystemet i v\u00e6rt-milj\u00f8et i en separat virtuel maskine. Projektkoden <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Bareflank\/hypervisor\">distribueres<\/a><\/noindex> er under LGPL 2.1-licensen.<\/p>\n<p>Bareflank underst\u00f8tter Linux, Windows og UEFI p\u00e5 64-bit CPU'er fra Intel. Teknologien Intel VT-x anvendes til hardwareadskillelse af ressourcer i de virtuelle maskiner. P\u00e5 fremtiden er der planlagt st\u00f8tte til macOS og BSD-systemer, samt muligheden for at arbejde p\u00e5 ARM64 og AMD-platforme. Derudover udvikles en egen driver til indl\u00e6sning af VMM (Virtual Machine Manager), en ELF-indl\u00e6ser til indl\u00e6sning af VVM-moduler, og et bfm-program til styring af hypervisoren fra brugerrummet. V\u00e6rkt\u00f8jer til at skrive udvidelser med elementer defineret i C++11\/14-specifikationerne, en bibliotek til undtagelsesstakudvikling (unwind), samt et eget runtime-bibliotek for at underst\u00f8tte anvendelsen af konstrukt\u00f8rer\/destukt\u00f8rer og registrering af undtagelsesbehandlere.<\/p>\n<p>Med Bareflank udvikles et virtualiseringssystem <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Bareflank\/boxy\">Boxy<\/a><\/noindex>, der underst\u00f8tter k\u00f8rsel af g\u00e6stesystemer og muligg\u00f8r anvendelse af letv\u00e6gts virtuelle maskiner med Linux og Unikernel til at k\u00f8re specialiserede tjenester eller applikationer. I form af isolerede tjenester kan b\u00e5de almindelige webtjenester og applikationer med s\u00e6rlige krav til p\u00e5lidelighed og sikkerhed k\u00f8res, isoleret fra indflydelsen fra v\u00e6rt-milj\u00f8et (v\u00e6rtsmilj\u00f8et isoleres i en separat virtuel maskine). <\/p>\n<p>De vigtigste nyheder i Bareflank 2.0:<\/p>\n<ul>\n<li class=\"l\"> St\u00f8tte til at starte Bareflank direkte fra UEFI for efterf\u00f8lgende at k\u00f8re operativsystemet i en virtuel maskine er blevet tilf\u00f8jet;\n<li class=\"l\"> En ny hukommelsesstyringsmanager er blevet implementeret, designet i lighed med SLAB\/Buddy hukommelsesmanagersystemer i Linux. Den nye hukommelsesmanager viser et fald i fragmentering, leverer h\u00f8jere ydeevne og underst\u00f8tter dynamisk hukommelsestildeling til hypervisoren gennem <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/rianquinn\/bfdriver\">bfdriver<\/a><\/noindex>, hvilket reducerer den indledende st\u00f8rrelse af hypervisoren og optimerer skaleringen afh\u00e6ngig af antallet af CPU-kerner;\n<li class=\"l\"> Et nyt byggesystem baseret p\u00e5 CMake, der er uafh\u00e6ngigt af kommandotolk, g\u00f8r det muligt for betydelige forbedringer i kompileringstiden for hypervisoren og forenkler fremtidig support for yderligere arkitekturer som ARM;\n<li class=\"l\"> Koden er blevet reorganiseret, og strukturen af kildekoderne er blevet forenklet. Underst\u00f8ttelse af besl\u00e6gtede projekter som hyperkernel er forbedret uden behov for at duplikere kode. Koden er mere klart adskilt <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Bareflank\/hypervisor\/tree\/master\/bfvmm\">hypervisoren<\/a><\/noindex>, unwind-bibliotekerne, runtime, styringsv\u00e6rkt\u00f8jer, bootloader og SDK;\n<li class=\"l\"> St\u00f8rstedelen af API'et er i stedet for tidligere anvendte arvsmekanismer i C++ blevet overf\u00f8rt til brug af <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD_%D0%B4%D0%B5%D0%BB%D0%B5%D0%B3%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F\">delegation<\/a><\/noindex>, hvilket har forenklet API'et, \u00f8get ydeevnen og reduceret ressourceforbruget.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Kilde: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52279\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Bareflank 2.0, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0434\u043b\u044f \u0431\u044b\u0441\u0442\u0440\u043e\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u043e\u0432. Bareflank \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 C++, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 C++ STL. \u041c\u043e\u0434\u0443\u043b\u044c\u043d\u0430\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0430 Bareflank \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0442 \u043b\u0435\u0433\u043a\u043e \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u0442\u044c \u0438\u043c\u0435\u044e\u0449\u0438\u0435\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 \u0438 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u044b \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u043e\u0432, \u043a\u0430\u043a \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0445 \u043f\u043e\u0432\u0435\u0440\u0445 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f (\u043a\u0430\u043a Xen), \u0442\u0430\u043a \u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u044b\u0445 \u0432 \u0438\u043c\u0435\u044e\u0449\u0435\u043c\u0441\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u043c \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u0438 (\u043a\u0430\u043a VirtualBox). \u0418\u043c\u0435\u0435\u0442\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0445\u043e\u0441\u0442-\u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-40553","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Bareflank.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/da\/blog\/vypusk-gipervizora-bareflank-2-0\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" 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