{"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\/it\/blog\/vypusk-gipervizora-bareflank-2-0","title":{"rendered":"Rilascio del 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\">Si \u00e8 svolto<\/a><\/noindex> rilascio dell'iperdispositivo <noindex><a rel=\"nofollow\" href=\"http:\/\/bareflank.github.io\/hypervisor\/\">Bareflank 2.0<\/a><\/noindex>, che fornisce strumenti per lo sviluppo rapido di iperdispositivi specializzati. Bareflank \u00e8 scritto in C++ e supporta C++ STL. L'architettura modulare di Bareflank consente di espandere facilmente le capacit\u00e0 esistenti dell'iperdispositivo e di creare varianti personalizzate di iperdispositivi, sia eseguibili direttamente sull'hardware (come Xen) sia in ambienti software esistenti (come VirtualBox). \u00c8 possibile eseguire il sistema operativo dell'ambiente host in una macchina virtuale separata. Il codice del progetto <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Bareflank\/hypervisor\">distribuito<\/a><\/noindex> \u00e8 rilasciato sotto licenza LGPL 2.1.<\/p>\n<p>Bareflank supporta Linux, Windows e UEFI su CPU Intel a 64 bit. Per la separazione hardware delle risorse delle macchine virtuali viene utilizzata la tecnologia Intel VT-x. \u00c8 prevista in futuro il supporto per macOS e sistemi BSD, cos\u00ec come la possibilit\u00e0 di funzionare su piattaforme ARM64 e AMD. Inoltre, il progetto sviluppa un proprio driver per il caricamento del VMM (Virtual Machine Manager), un caricatore ELF per il caricamento dei moduli VVM, e un'applicazione bfm per gestire l'iperdispositivo dallo spazio utente. Viene fornito uno strumento per scrivere estensioni utilizzando elementi definiti nelle specifiche C++11\/14, una libreria di unwinding per gestire le eccezioni, e anche una propria libreria runtime per supportare l'uso di costruttori\/distruttori e la registrazione dei gestori di eccezioni.<\/p>\n<p>Sulla base di Bareflank si sta sviluppando un sistema di virtualizzazione <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Bareflank\/boxy\">Boxy<\/a><\/noindex>, che supporta l'esecuzione di sistemi guest e consente l'utilizzo di macchine virtuali leggere con Linux e Unikernel per eseguire servizi o applicazioni specializzate. Nella forma di servizi isolati, \u00e8 possibile eseguire sia normali servizi web sia applicazioni che presentano requisiti particolari in termini di affidabilit\u00e0 e sicurezza, isolate dall'influenza dell'ambiente host (l'ambiente host viene isolato in una macchina virtuale separata). <\/p>\n<p>Le principali novit\u00e0 di Bareflank 2.0:<\/p>\n<ul>\n<li class=\"l\"> Aggiunto il supporto per l'avvio di Bareflank direttamente da UEFI per eseguire successivamente il sistema operativo in una macchina virtuale;\n<li class=\"l\"> Implementato un nuovo gestore della memoria, progettato in modo simile ai gestori della memoria SLAB\/Buddy in Linux. Il nuovo gestore della memoria mostra una riduzione della frammentazione, consente di ottenere prestazioni pi\u00f9 elevate e supporta l'allocazione dinamica di memoria per l'iperdispositivo attraverso <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/rianquinn\/bfdriver\">bfdriver<\/a><\/noindex>, che consente di ridurre la dimensione iniziale dell'iperdispositivo e scalare in modo ottimale in base al numero di core CPU;\n<li class=\"l\"> Un nuovo sistema di build basato su CMake, indipendente dall'interprete della riga di comando, che consente di accelerare significativamente la compilazione dell'iperdispositivo e semplificare il supporto futuro per ulteriori architetture, come ARM;\n<li class=\"l\"> Eseguita la riorganizzazione del codice e semplificata la struttura dei sorgenti. Migliorato il supporto per progetti correlati, come hyperkernel, senza la necessit\u00e0 di duplicare codice. Il codice \u00e8 stato separato in modo pi\u00f9 chiaro <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Bareflank\/hypervisor\/tree\/master\/bfvmm\">iper-vettore<\/a><\/noindex>, libreria di unwind, runtime, strumenti di gestione, caricatore e SDK;\n<li class=\"l\"> La maggior parte delle API, invece dei precedenti meccanismi di ereditariet\u00e0 in C++, sono state migrate per utilizzare <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\">delegare<\/a><\/noindex>, il che ha semplificato l'API, migliorato le prestazioni e ridotto l'uso delle risorse.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <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 5.0.0.1 - 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\/it\/blog\/vypusk-gipervizora-bareflank-2-0\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.0.1\" \/>\n\t\t<meta property=\"og:locale\" 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