{"id":89996,"date":"2020-07-28T01:42:24","date_gmt":"2020-07-27T23:42:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-gipervizora-xen-4-14"},"modified":"2020-07-28T01:42:24","modified_gmt":"2020-07-27T23:42:24","slug":"vypusk-gipervizora-xen-4-14","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/vypusk-gipervizora-xen-4-14","title":{"rendered":"Sortie de l'hyperviseur Xen 4.14","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Apr\u00e8s huit mois de d\u00e9veloppement <noindex><a rel=\"nofollow\" href=\"https:\/\/xenproject.org\/2020\/07\/24\/xen-project-hypervisor-version-4-14-brings-added-security-and-performance\/\">publi\u00e9e<\/a><\/noindex> version gratuite d'hyperviseur <noindex><a rel=\"nofollow\" href=\"https:\/\/www.xenproject.org\/\">Xen 4.14<\/a><\/noindex>. Des entreprises telles qu'Alibaba, Amazon, AMD, Arm, Bitdefender, Citrix, EPAM Systems, Huawei et Intel ont particip\u00e9 au d\u00e9veloppement de cette nouvelle version. Les mises \u00e0 jour pour la branche Xen 4.14 seront disponibles jusqu'au 24 janvier 2022, et la publication des correctifs de vuln\u00e9rabilit\u00e9s jusqu'au 24 juillet 2023.<\/p>\n<p>Am\u00e9liorations cl\u00e9s <noindex><a rel=\"nofollow\" href=\"http:\/\/wiki.xenproject.org\/wiki\/Xen_Project_4.14_Feature_List\">modifications<\/a><\/noindex> dans Xen 4.14 : <\/p>\n<ul>\n<li class=\"l\"> Ajout du support d'un nouveau mod\u00e8le de dispositifs <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.xenproject.org\/wiki\/Device_Model_Stub_Domains\">Linux stubdomain<\/a><\/noindex>, permettant d'organiser l'ex\u00e9cution sous un utilisateur non privil\u00e9gi\u00e9, s\u00e9parant les composants pour l'\u00e9mulation des appareils de Dom0. Auparavant, en mode stubdomain, seul le mod\u00e8le d'appareils \u00ab qemu-traditional \u00bb pouvait \u00eatre utilis\u00e9, ce qui limitait la gamme de mat\u00e9riel \u00e9mul\u00e9. Le nouveau mod\u00e8le <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.xen.org\/wiki\/Linux_stub_domains\">Linux stubomains<\/a><\/noindex> a \u00e9t\u00e9 d\u00e9velopp\u00e9 par le projet QUBES OS et prend en charge l'utilisation de pilotes d'\u00e9mulation des derni\u00e8res versions de QEMU, ainsi que des fonctionnalit\u00e9s associ\u00e9es disponibles dans QEMU pour les syst\u00e8mes invit\u00e9s.\n<li class=\"l\"> Pour les syst\u00e8mes prenant en charge Intel EPT, le support de la cr\u00e9ation de branches l\u00e9g\u00e8res (forks) de machines virtuelles a \u00e9t\u00e9 mis en \u0153uvre pour effectuer une introspection rapide, par exemple, pour l'analyse de logiciels malveillants ou les tests de fuzzing. Dans ces forks, le partage de m\u00e9moire est utilis\u00e9 et le clonage du mod\u00e8le de dispositifs n'est pas effectu\u00e9.\n<li class=\"l\"> Le syst\u00e8me de live-patching a \u00e9t\u00e9 li\u00e9 aux identifiants de versions du hyperviseur et tient compte de l'ordre d'application des correctifs pour \u00e9viter l'application de correctifs non appropri\u00e9s ou dans le mauvais ordre.\n<li class=\"l\"> Ajout du support des extensions CET (Intel Control-flow Enforcement Technology) pour prot\u00e9ger contre l'ex\u00e9cution d'exploits exploitant des techniques de programmation orient\u00e9e retour (ROP, Return-Oriented Programming).\n<li class=\"l\"> Ajout de la configuration CONFIG_PV32 pour d\u00e9sactiver dans l'hyperviseur le support des syst\u00e8mes invit\u00e9s paravirtualis\u00e9s (PV) 32 bits tout en maintenant le support des syst\u00e8mes 64 bits.\n<li class=\"l\"> Ajout du support de Hypervisor FS, un pseudo-syst\u00e8me de fichiers de style sysfs pour un acc\u00e8s structur\u00e9 aux donn\u00e9es internes et aux param\u00e8tres de l'hyperviseur, sans n\u00e9cessit\u00e9 de d\u00e9codage des journaux ou d'\u00e9criture d'hyperappels.\n<li class=\"l\"> Mise en \u0153uvre de la possibilit\u00e9 de lancer Xen en tant que syst\u00e8me invit\u00e9 sous l'hyperviseur Hyper-V, utilis\u00e9 sur la plateforme cloud Microsoft Azure. Le lancement de Xen \u00e0 l'int\u00e9rieur de Hyper-V permet d'utiliser une pile de virtualisation famili\u00e8re dans les environnements cloud Azure et donne la possibilit\u00e9 de d\u00e9placer des machines virtuelles entre diff\u00e9rents syst\u00e8mes cloud.\n<li class=\"l\"> Ajout de la possibilit\u00e9 de g\u00e9n\u00e9rer un identifiant al\u00e9atoire pour le syst\u00e8me invit\u00e9 (les identifiants \u00e9taient auparavant g\u00e9n\u00e9r\u00e9s de mani\u00e8re s\u00e9quentielle). Les identifiants peuvent \u00e9galement \u00eatre conserv\u00e9s entre les op\u00e9rations de sauvegarde, de restauration et de migration de l'\u00e9tat de la VM.\n<li class=\"l\"> G\u00e9n\u00e9ration automatique de liaisons pour le langage Go bas\u00e9e sur les structures libxl.\n<li class=\"l\"> Pour Windows 7, 8.x et 10, prise en charge de KDD, un outil d'interaction avec le d\u00e9bogueur WinDbg (Windows Debugger), permettant de d\u00e9boguer des environnements Windows sans activer le d\u00e9bogage dans le syst\u00e8me d'exploitation invit\u00e9.\n<li class=\"l\"> Prise en charge de toutes les variantes de la carte Raspberry Pi 4, livr\u00e9es avec 4 Go et 8 Go de RAM.\n<li class=\"l\"> Ajout du support pour les processeurs AMD EPYC cod\u00e9s sous le nom de \u00ab Milan \u00bb.\n<li class=\"l\"> Am\u00e9lioration des performances de la virtualisation imbriqu\u00e9e, o\u00f9 Xen s'ex\u00e9cute \u00e0 l'int\u00e9rieur des syst\u00e8mes invit\u00e9s bas\u00e9s sur Xen ou Viridian.\n<li class=\"l\"> Dans le mode d'\u00e9mulation, prise en charge des instructions AVX512_BF16.\n<li class=\"l\"> La construction de l'hyperviseur a \u00e9t\u00e9 transf\u00e9r\u00e9e vers l'utilisation de Kbuild.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Source : <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53440\">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 4.14. \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 Alibaba, Amazon, AMD, Arm, Bitdefender, Citrix, EPAM Systems, Huawei \u0438 Intel. \u0412\u043f\u0443\u0441\u043a \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u0432\u0435\u0442\u043a\u0438 Xen 4.14 \u043f\u0440\u043e\u0434\u043b\u0438\u0442\u0441\u044f \u0434\u043e 24 \u044f\u043d\u0432\u0430\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 24 \u0438\u044e\u043b\u044f 2023 \u0433\u043e\u0434\u0430. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 Xen [&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-89996","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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