{"id":118740,"date":"2024-08-01T03:43:00","date_gmt":"2024-08-01T01:43:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-gipervizora-xen-4-19"},"modified":"2024-08-01T03:43:00","modified_gmt":"2024-08-01T01:43:00","slug":"vypusk-gipervizora-xen-4-19","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/vypusk-gipervizora-xen-4-19","title":{"rendered":"Uitgave van hypervisor Xen 4.19","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Na acht maanden ontwikkeling is de vrijgegeven release van hypervisor Xen 4.19 beschikbaar gesteld. Bedrijven zoals Amazon, Arm, EPAM Systems en AMD waren betrokken bij de ontwikkeling van deze nieuwe release. De updates voor de Xen 4.19-tak worden doorgezet tot februari 2026, terwijl de publicatie van kwetsbaarheidfixes tot augustus 2027 zal duren.      <\/p>\n<p>Belangrijke wijzigingen in Xen 4.19:   <\/p>\n<ul>\n<li class=\"l\"> Voor systemen op basis van de ARM-architectuur is ondersteuning toegevoegd voor het mechanisme van asynchrone datacommunicatie 'FF-A Notifications', zoals beschreven in de specificatie FF-A (Firmware Framework for Arm A-profile). De mogelijkheid om nodes dynamisch toe te voegen en te verwijderen in de Xen-device tree met behulp van .dtbo-bestanden is ge\u00efmplementeerd.\n<li class=\"l\"> Voor systemen op basis van de x86-architectuur is er een nieuwe driver voor de x2APIC-interruptcontroller toegevoegd, die gebruikmaakt van de logische adresseringsmodus (Cluster Logical) voor interne interrupts (IPI, inter-processor interrupt) en de fysieke adresseringsmodus voor externe interrupts.\n<li class=\"l\"> De ondersteuning voor Intel XeonPhi-processors is als verouderd verklaard en zal in de volgende release worden stopgezet.\n<li class=\"l\"> De PVH-virtualisatiemodus voor dom0 is omgezet in de categorie 'ondersteund met beperkingen', waarbij elementen van de paravitualisatie (PV) worden gecombineerd voor invoer\/uitvoer, interruptverwerking, opstartorganisatie en interactie met hardware, met toepassing van volledige virtualisatie (HVM) voor het beperken van geprivilegieerde instructies, isolatie van systeemoproepen en virtualisatie van paginatabellen in het geheugen. In PVH\/HVM is ondersteuning toegevoegd voor het mappen van buitenlandse geheugens ( 'foreign pages'), waardoor het gebruik van een QEMU-stubdomain mogelijk is voor isolatie en beheer van apparaten in de PVH-modus. Er zijn optimalisaties doorgevoerd die de opstarttijd bij gebruik van PVH versnellen. De instelling XENFEAT_hvm_pirqs is toegevoegd, waardoor selectieve ondersteuning voor pIRQ in gastensystemen die draaien in HVM-modus (volledige virtualisatie) kan worden ingeschakeld.\n<li class=\"l\"> Een nieuwe 9pfs-backend is toegevoegd, waarmee het mogelijk is om via het Plan 9-netwerkbestandssysteem toegang van de ene virtuele machine naar de andere te krijgen. De nieuwe backend wordt uitgevoerd als een achtergrondproces aan de hostzijde (dom0). De backend is al ge\u00efntegreerd in Xenstore-stubdom voor volledige ondersteuning van de Xenstore-tracering.\n<li class=\"l\"> Het maximale aantal CPU's dat in Xen kan worden gebruikt, is verhoogd van 4095 naar 16383.\n<li class=\"l\"> Bij het bouwen met systemd (.\/configure --enable-systemd) is de bibliotheek libsystemd uitgesloten van de bouwafhankelijkheden (de ondersteuning voor systemd-notify wordt gerealiseerd via een aangepaste verkorte bibliotheek).\n<li class=\"l\"> Voor het analyseren van traces voor AMD CPU's is de optie '--svm-mode' in xenalyze niet langer nodig.\n<li class=\"l\"> De implementatie van vereisten voor de ontwikkeling van veilige en betrouwbare programma's in de programmeertaal C, zoals vastgesteld in de MISRA-C-specificaties voor kritiek belangrijke systemen, is voortgezet.\n<li class=\"l\"> De ontwikkeling van de poorten voor RISC-V en Power (ppc64le) is voortgezet.       <\/ul>\n<p>Bron: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61640\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 8 \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 4.19. \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, EPAM Systems \u0438 AMD. \u0424\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u0432\u0435\u0442\u043a\u0438 Xen 4.19 \u043f\u0440\u043e\u0434\u043b\u0438\u0442\u0441\u044f \u0434\u043e \u0444\u0435\u0432\u0440\u0430\u043b\u044f 2026 \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 \u0430\u0432\u0433\u0443\u0441\u0442\u0430 2027 \u0433\u043e\u0434\u0430. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 Xen 4.19: \u0414\u043b\u044f \u0441\u0438\u0441\u0442\u0435\u043c \u043d\u0430 \u0431\u0430\u0437\u0435 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b ARM [&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-118740","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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