{"id":101721,"date":"2021-10-22T04:22:36","date_gmt":"2021-10-22T02:22:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-gipervizora-bareflank-3-0"},"modified":"2021-10-22T04:22:36","modified_gmt":"2021-10-22T02:22:36","slug":"vypusk-gipervizora-bareflank-3-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-gipervizora-bareflank-3-0","title":{"rendered":"Lan\u00e7amento do hipervisor Bareflank 3.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Foi lan\u00e7ado o hipervisor Bareflank 3.0, que fornece um conjunto de ferramentas para desenvolvimento r\u00e1pido de hipervisores especializados. O Bareflank \u00e9 escrito em C++ e suporta C++ STL. A arquitetura modular do Bareflank permite expandir facilmente as funcionalidades existentes do hipervisor e criar suas pr\u00f3prias vers\u00f5es, tanto que funcionam diretamente no hardware (como o Xen) quanto aquelas que s\u00e3o executadas em um ambiente de software existente (como o VirtualBox). H\u00e1 a possibilidade de executar o sistema operacional do ambiente host em uma m\u00e1quina virtual separada. O c\u00f3digo do projeto \u00e9 distribu\u00eddo sob a licen\u00e7a LGPL 2.1.      <\/p>\n<p>O Bareflank implementa suporte para Linux, Windows e UEFI em CPUs Intel e AMD de 64 bits. Para a separa\u00e7\u00e3o de recursos de hardware <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/vps\/\"   title=\"m\u00e1quinas virtuais\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2073\">m\u00e1quinas virtuais<\/a> \u00e9 utilizada a tecnologia Intel VT-x. Para o futuro, est\u00e1 planejado o suporte a macOS e sistemas BSD, al\u00e9m da possibilidade de funcionamento na plataforma ARM64. Adicionalmente, o projeto est\u00e1 desenvolvendo seu pr\u00f3prio driver para o carregamento do VMM (Gerenciador de M\u00e1quinas Virtuais), um carregador ELF para carregar m\u00f3dulos VVM, e a aplica\u00e7\u00e3o bfm para gerenciar o hipervisor a partir do espa\u00e7o do usu\u00e1rio. Um conjunto de ferramentas \u00e9 fornecido para escrever extens\u00f5es usando elementos definidos nas especifica\u00e7\u00f5es C++11\/14, uma biblioteca para desdobramento de pilha de exce\u00e7\u00f5es (unwind) e tamb\u00e9m uma biblioteca runtime pr\u00f3pria para suporte ao uso de construtores\/destrutores e registro de manipuladores de exce\u00e7\u00f5es.    <\/p>\n<p>Com base no Bareflank, est\u00e1 sendo desenvolvida a sistema de virtualiza\u00e7\u00e3o Boxy, que suporta a execu\u00e7\u00e3o de sistemas convidados e permite o uso de m\u00e1quinas virtuais leves com Linux e Unikernel para executar servi\u00e7os ou aplicativos especializados. Na forma de servi\u00e7os isolados, \u00e9 poss\u00edvel executar tanto servi\u00e7os web comuns quanto aplicativos que exigem requisitos espec\u00edficos de confiabilidade e seguran\u00e7a, livres da influ\u00eancia do ambiente host (o ambiente host \u00e9 isolado em uma m\u00e1quina virtual separada). O Bareflank tamb\u00e9m serve de base para o hipervisor MicroV, destinado \u00e0 execu\u00e7\u00e3o de m\u00e1quinas virtuais minimalistas (<a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/vps\/abuzoustojchivye-vps\/\"   title=\"m\u00e1quina virtual\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4199\">m\u00e1quina virtual<\/a> de um \u00fanico aplicativo), implementando a API KVM e adequado para a cria\u00e7\u00e3o de sistemas cr\u00edticos.    <\/p>\n<p>As principais novidades do Bareflank 3.0:  <\/p>\n<ul>\n<li class=\"l\"> Transi\u00e7\u00e3o para o uso do conceito de microkernel. Anteriormente, o hipervisor possu\u00eda uma arquitetura monol\u00edtica, onde a expans\u00e3o da funcionalidade exigia o uso de uma API especial para registrar chamadas de retorno, o que dificultava o desenvolvimento de extens\u00f5es devido \u00e0 liga\u00e7\u00e3o \u00e0 linguagem C++ e \u00e0 sua estrutura interna. A nova arquitetura baseada em microkernel implica a divis\u00e3o do hipervisor em componentes do n\u00facleo, executados em modo de prote\u00e7\u00e3o anel zero, e extens\u00f5es, executadas em anel tr\u00eas (espa\u00e7o do usu\u00e1rio). Ambas as partes operam em modo root do VMX, enquanto todo o resto, incluindo o ambiente de host, opera em modo n\u00e3o root do VMX. As extens\u00f5es no espa\u00e7o do usu\u00e1rio implementam a funcionalidade do gerenciador de m\u00e1quinas virtuais (VMM) e interagem com o n\u00facleo do hipervisor atrav\u00e9s de chamadas de sistema, para as quais \u00e9 garantida compatibilidade com vers\u00f5es anteriores. Extens\u00f5es podem ser criadas em qualquer linguagem de programa\u00e7\u00e3o, incluindo suporte para Rust.\n<li class=\"l\"> A transi\u00e7\u00e3o para o uso de uma biblioteca pr\u00f3pria BSL com suporte para Rust e C++ foi realizada, substituindo as bibliotecas externas libc++ e newlib. A elimina\u00e7\u00e3o de depend\u00eancias externas permitiu implementar no Bareflank suporte nativo para compila\u00e7\u00e3o em Windows, facilitando o desenvolvimento nesta plataforma.\n<li class=\"l\"> Suporte para processadores AMD foi adicionado. Al\u00e9m disso, o desenvolvimento do Bareflank agora \u00e9 feito em um sistema com CPU AMD e posteriormente portado para CPUs Intel.\n<li class=\"l\"> O carregador agora suporta a arquitetura ARMv8, com a adapta\u00e7\u00e3o do hipervisor para essa arquitetura sendo finalizada em uma das pr\u00f3ximas vers\u00f5es.\n<li class=\"l\"> Atendemos aos requisitos para o desenvolvimento de sistemas cr\u00edticos, conforme formulados pelas organiza\u00e7\u00f5es AUTOSAR e MISRA.   <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56012\">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 3.0, \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":[702],"tags":[],"class_list":["post-101721","post","type-post","status-publish","format-standard","hentry","category-news"],"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 3.0, \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. 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