{"id":99703,"date":"2021-04-12T10:23:04","date_gmt":"2021-04-12T08:23:04","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-gipervizora-xen-4-15"},"modified":"2021-04-12T10:23:04","modified_gmt":"2021-04-12T08:23:04","slug":"vypusk-gipervizora-xen-4-15","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-gipervizora-xen-4-15","title":{"rendered":"Lan\u00e7amento do hypervisor Xen 4.15","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ap\u00f3s oito meses de desenvolvimento, foi lan\u00e7ado o release do hipervisor livre Xen 4.15. Empresas como Amazon, Arm, Bitdefender, Citrix e EPAM Systems participaram do desenvolvimento desta nova vers\u00e3o. A libera\u00e7\u00e3o de atualiza\u00e7\u00f5es para o ramo Xen 4.15 continuar\u00e1 at\u00e9 8 de outubro de 2022, enquanto a publica\u00e7\u00e3o de corre\u00e7\u00f5es de vulnerabilidades ir\u00e1 at\u00e9 8 de abril de 2024.      <\/p>\n<p>Principais mudan\u00e7as no Xen 4.15:   <\/p>\n<ul>\n<li class=\"l\"> Nos processos Xenstored e oxenstored, foi implementado suporte experimental para atualiza\u00e7\u00f5es ao vivo, permitindo a entrega e aplica\u00e7\u00e3o de corre\u00e7\u00f5es de vulnerabilidades sem reiniciar o ambiente host.\n<li class=\"l\"> Foi adicionado o suporte a imagens de inicializa\u00e7\u00e3o unificadas, que permitem criar imagens de sistema que incluem componentes do Xen. Essas imagens s\u00e3o formatadas como um \u00fanico arquivo bin\u00e1rio para EFI, que pode ser usado para iniciar um sistema Xen em funcionamento diretamente do gerenciador de inicializa\u00e7\u00e3o EFI, sem carregadores intermedi\u00e1rios, como o GRUB. O pacote inclui componentes do Xen, como hipervisor, kernel para o ambiente host (dom0), initrd, Xen KConfig, configura\u00e7\u00f5es XSM e Device Tree.\n<li class=\"l\"> Para a plataforma ARM, foi implementada uma capacidade experimental de executar modelos de dispositivos no lado do sistema host dom0, permitindo emular dispositivos de hardware arbitr\u00e1rios para sistemas convidados baseados na arquitetura ARM. Para ARM, tamb\u00e9m foi adicionado suporte ao SMMUv3 (System Memory Management Unit), que melhora a seguran\u00e7a e a confiabilidade da passagem de dispositivos em sistemas ARM.\n<li class=\"l\"> Foi adicionado o suporte ao mecanismo de rastreamento de hardware IPT (Intel Processor Trace), dispon\u00edvel a partir da CPU Intel Broadwell, para exportar dados de sistemas convidados para ferramentas de depura\u00e7\u00e3o em execu\u00e7\u00e3o no lado do sistema host. Por exemplo, \u00e9 poss\u00edvel usar o VMI Kernel Fuzzer ou DRAKVUF Sandbox.\n<li class=\"l\"> Foi adicionado suporte a ambientes Viridian (Hyper-V) para executar sistemas convidados com Windows, que utilizam mais de 64 VCPUs.\n<li class=\"l\"> A camada PV Shim, utilizada para executar sistemas convidados paravirtualizados (PV) n\u00e3o modificados em ambientes PVH e HVM, foi modernizada (isso permite a opera\u00e7\u00e3o de sistemas convidados antigos em ambientes mais seguros, oferecendo uma isola\u00e7\u00e3o mais rigorosa). Na nova vers\u00e3o, a compatibilidade para executar sistemas convidados PV em ambientes que suportam apenas o modo HVM foi aprimorada. O tamanho da camada foi reduzido, devido \u00e0 diminui\u00e7\u00e3o do c\u00f3digo espec\u00edfico para HVM.\n<li class=\"l\"> Expandiram-se as capacidades dos drivers VirtIO em sistemas ARM. Uma implementa\u00e7\u00e3o foi proposta para sistemas ARM <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/dts-los-angeles\/\"   title=\"servidor\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3700\">servidor<\/a> IOREQ, que futuramente ser\u00e1 utilizado para fortalecer a virtualiza\u00e7\u00e3o de entrada\/sa\u00edda usando os protocolos VirtIO. Foi adicionada uma implementa\u00e7\u00e3o de refer\u00eancia de dispositivo de bloco VirtIO para ARM e foi oferecida a possibilidade de passar dispositivos de bloco VirtIO para sistemas convidados baseados na arquitetura ARM. O suporte \u00e0 virtualiza\u00e7\u00e3o PCIe para ARM come\u00e7ou a ser implementado.\n<li class=\"l\"> Continua o trabalho na implementa\u00e7\u00e3o da porta Xen para processadores RISC-V. Atualmente, est\u00e1 em desenvolvimento c\u00f3digo para gerenciar a mem\u00f3ria virtual do lado do host e dos sistemas convidados, al\u00e9m de criar c\u00f3digo espec\u00edfico para a arquitetura RISC-V.\n<li class=\"l\"> Em conjunto com o projeto Zephyr, baseado no padr\u00e3o MISRA_C, est\u00e1 sendo desenvolvido um conjunto de requisitos e diretrizes para a formata\u00e7\u00e3o de c\u00f3digo, reduzindo os riscos de problemas de seguran\u00e7a. Para detectar discrep\u00e2ncias em rela\u00e7\u00e3o \u00e0s regras criadas, s\u00e3o utilizados analisadores est\u00e1ticos.\n<li class=\"l\"> Foi apresentada a iniciativa Hyperlaunch, visando fornecer ferramentas flex\u00edveis para a configura\u00e7\u00e3o do lan\u00e7amento de um conjunto est\u00e1tico <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/vps\/\"   title=\"m\u00e1quinas virtuais\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2049\">m\u00e1quinas virtuais<\/a> durante a inicializa\u00e7\u00e3o do sistema. A iniciativa prop\u00f4s o conceito de domB (dom\u00ednio de inicializa\u00e7\u00e3o, dom0less), permitindo operar sem a necessidade de implantar o ambiente dom0 ao inicializar m\u00e1quinas virtuais nas fases iniciais de boot do servidor.\n<li class=\"l\"> No sistema de integra\u00e7\u00e3o cont\u00ednua, foi assegurado o teste do Xen no Alpine Linux e Ubuntu 20.04. O teste no CentOS 6 foi descontinuado. Testes dom0\/domU baseados no QEMU foram adicionados ao ambiente de integra\u00e7\u00e3o cont\u00ednua para ARM.      <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54949\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0432\u043e\u0441\u044c\u043c\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Xen 4.15. \u0412 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u043f\u0440\u0438\u043d\u044f\u043b\u0438 \u0443\u0447\u0430\u0441\u0442\u0438\u0435 \u0442\u0430\u043a\u0438\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438, \u043a\u0430\u043a Amazon, Arm, Bitdefender, Citrix \u0438 EPAM Systems. \u0412\u044b\u043f\u0443\u0441\u043a \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u0432\u0435\u0442\u043a\u0438 Xen 4.15 \u043f\u0440\u043e\u0434\u043b\u0438\u0442\u0441\u044f \u0434\u043e 8 \u043e\u043a\u0442\u044f\u0431\u0440\u044f 2022 \u0433\u043e\u0434\u0430, \u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u044f \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0434\u043e 8 \u0430\u043f\u0440\u0435\u043b\u044f 2024 \u0433\u043e\u0434\u0430. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 Xen 4.15: \u0412 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430\u0445 Xenstored [&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-99703","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=\"\u041f\u043e\u0441\u043b\u0435 \u0432\u043e\u0441\u044c\u043c\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Xen 4.15. \u0412 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u043f\u0440\u0438\u043d\u044f\u043b\u0438 \u0443\u0447\u0430\u0441\u0442\u0438\u0435 \u0442\u0430\u043a\u0438\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438, \u043a\u0430\u043a Amazon, Arm, Bitdefender, Citrix \u0438 EPAM Systems.\" \/>\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\/pt\/blog\/news\/vypusk-gipervizora-xen-4-15\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"pt_PT\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0412\u044b\u043f\u0443\u0441\u043a \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Xen 4.15 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0432\u043e\u0441\u044c\u043c\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Xen 4.15. \u0412 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u043f\u0440\u0438\u043d\u044f\u043b\u0438 \u0443\u0447\u0430\u0441\u0442\u0438\u0435 \u0442\u0430\u043a\u0438\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438, \u043a\u0430\u043a Amazon, Arm, Bitdefender, Citrix \u0438 EPAM Systems.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-gipervizora-xen-4-15\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2021-04-12T08:23:04+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2021-04-12T08:23:04+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Lan\u00e7amento do hipervisor Xen 4.15 | ProHoster","description":"Ap\u00f3s oito meses de desenvolvimento, foi lan\u00e7ada a vers\u00e3o do hipervisor livre Xen 4.15. No desenvolvimento da nova vers\u00e3o participaram empresas como Amazon, Arm, Bitdefender, Citrix e EPAM Systems.","canonical_url":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-gipervizora-xen-4-15","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pt_PT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412\u044b\u043f\u0443\u0441\u043a \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Xen 4.15 | ProHoster","og:description":"\u041f\u043e\u0441\u043b\u0435 \u0432\u043e\u0441\u044c\u043c\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Xen 4.15. \u0412 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u043f\u0440\u0438\u043d\u044f\u043b\u0438 \u0443\u0447\u0430\u0441\u0442\u0438\u0435 \u0442\u0430\u043a\u0438\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438, \u043a\u0430\u043a Amazon, Arm, Bitdefender, Citrix \u0438 EPAM Systems.","og:url":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-gipervizora-xen-4-15","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2021-04-12T08:23:04+00:00","article:modified_time":"2021-04-12T08:23:04+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"99703","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-04-12 08:36:19","updated":"2026-02-22 15:29:53","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts\/99703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/comments?post=99703"}],"version-history":[{"count":2,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts\/99703\/revisions"}],"predecessor-version":[{"id":162228,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts\/99703\/revisions\/162228"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/media?parent=99703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/categories?post=99703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/tags?post=99703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}