{"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\/ro\/blog\/news\/vypusk-gipervizora-xen-4-19","title":{"rendered":"Lansarea hipervizorului Xen 4.19","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dup\u0103 8 luni de dezvoltare, a fost lansat\u0103 versiunea liber\u0103 a hypervisor-ului Xen 4.19. La elaborarea noului release au contribuit companii precum Amazon, Arm, EPAM Systems \u0219i AMD. Formarea actualiz\u0103rilor pentru ramura Xen 4.19 va continua p\u00e2n\u0103 \u00een februarie 2026, iar publicarea corec\u021biilor pentru vulnerabilit\u0103\u021bi va avea loc p\u00e2n\u0103 \u00een august 2027.      <\/p>\n<p>Schimb\u0103ri cheie \u00een Xen 4.19:   <\/p>\n<ul>\n<li class=\"l\"> Pentru sistemele bazate pe arhitectura ARM, a fost ad\u0103ugat\u0103 suport pentru mecanismul de schimb asynchron \u201eFF-A Notifications\u201d, descris \u00een specifica\u021bia FF-A (Firmware Framework for Arm A-profile). A fost implementat\u0103 posibilitatea de a ad\u0103uga \u0219i elimina dinamic noduri \u00een arborele de dispozitive Xen prin intermediul fi\u0219ierelor .dtbo.\n<li class=\"l\"> Pentru sistemele bazate pe arhitectura x86, s-a ad\u0103ugat un nou driver pentru controllerul de \u00eentreruperi x2APIC, care folose\u0219te modul de adresare logic\u0103 (Cluster Logical) pentru \u00eentreruperile interne (IPI, inter-processor interrupt) \u0219i modul de adresare fizic\u0103 pentru \u00eentreruperile externe.\n<li class=\"l\"> Suportul pentru procesoarele Intel XeonPhi a fost declarat \u00eenvechit \u0219i va fi \u00eentrerupt \u00een urm\u0103torul release.\n<li class=\"l\"> Modul de virtualizare PVH pentru dom0 a fost clasificat ca \u201esus\u021binut cu rezerv\u0103ri\u201d, combin\u00e2nd elemente ale modurilor de paravirtualizare (PV) pentru intrare\/ie\u0219ire, gestionarea \u00eentreruperilor, organizarea \u00eenc\u0103rc\u0103rii \u0219i interac\u021biunea cu hardware-ul, folosind virtualizarea complet\u0103 (HVM) pentru restric\u021bionarea instruc\u021biunilor privilegiate, izolare a apelurilor de sistem \u0219i virtualizarea tabelelor de pagini de memorie. \u00cen PVH\/HVM a fost ad\u0103ugat suport pentru maparea paginilor de memorie externe (\u201eforeign pages\u201d), permi\u021b\u00e2nd utilizarea QEMU stubdomain pentru izolarea \u0219i gestionarea dispozitivelor \u00een modul PVH. Au fost realizate optimiz\u0103ri care accelereaz\u0103 \u00eenc\u0103rcarea folosind PVH. A fost ad\u0103ugat\u0103 configura\u021bia XENFEAT_hvm_pirqs, care permite activarea selectiv\u0103 a suportului pIRQ pentru sistemele guest care ruleaz\u0103 \u00een modul HVM (virtualizare complet\u0103).\n<li class=\"l\"> A fost ad\u0103ugat un nou backend 9pfs, permi\u021b\u00e2nd utilizarea sistemului de fi\u0219iere de re\u021bea Plan 9 pentru accesul unei ma\u0219ini virtuale la alta. Noul backend este rulat ca un proces de fundal \u00een mediul gazdei (dom0). Backend-ul este deja utilizat \u00een Xenstore-stubdom pentru suportul complet al tras\u0103rii Xenstore.\n<li class=\"l\"> Num\u0103rul maxim de CPU-uri utilizate \u00een Xen a fost crescut de la 4095 la 16383.\n<li class=\"l\"> La compilarea cu systemd (.\/configure --enable-systemd), biblioteca libsystemd a fost exclus\u0103 din dependen\u021bele de compilare (suportul pentru systemd-notify este realizat printr-o bibliotec\u0103 proprie redus\u0103).\n<li class=\"l\"> Pentru analiza tras\u0103rii pentru CPU AMD \u00een xenalyze, nu mai este nevoie de op\u021biunea \u201e--svm-mode\u201d.\n<li class=\"l\"> A fost continuat\u0103 implementarea cerin\u021belor pentru dezvoltarea programelor sigure \u0219i fiabile \u00een limbajul C, formulate \u00een specifica\u021biile MISRA-C pentru sisteme critice.\n<li class=\"l\"> A fost continuat\u0103 dezvoltarea porturilor pentru arhitecturile RISC-V \u0219i Power (ppc64le).       <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61640\">opennet.ro<\/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 5.0.2.1 - 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