{"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\/ro\/blog\/news\/vypusk-gipervizora-xen-4-15","title":{"rendered":"Lansarea hipervizorului Xen 4.15","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dup\u0103 opt luni de dezvoltare, a fost lansat\u0103 versiunea liber\u0103 a hipervizorului Xen 4.15. La dezvoltarea noului release au participat companii precum Amazon, Arm, Bitdefender, Citrix \u0219i EPAM Systems. Lansarea actualiz\u0103rilor pentru ramura Xen 4.15 va continua p\u00e2n\u0103 pe 8 octombrie 2022, iar publicarea corec\u021biilor de securitate va dura p\u00e2n\u0103 pe 8 aprilie 2024.      <\/p>\n<p>Modific\u0103rile cheie \u00een Xen 4.15:   <\/p>\n<ul>\n<li class=\"l\"> \u00cen procesele Xenstored \u0219i oxenstored a fost implementat suport experimental pentru actualiz\u0103ri live, care permit livrarea \u0219i aplicarea corec\u021biilor de securitate f\u0103r\u0103 a reporni mediu-hosta.\n<li class=\"l\"> A fost ad\u0103ugat suport pentru imagini de \u00eenc\u0103rcare unificate, care permit crearea de imagini de sistem ce includ \u0219i componente Xen. Aceste imagini sunt prezentate sub form\u0103 de un singur fi\u0219ier binar pentru EFI, care poate fi utilizat pentru a \u00eenc\u0103rca un sistem Xen func\u021bional direct din managerul de \u00eenc\u0103rcare EFI, f\u0103r\u0103 bootloadere intermediare, cum ar fi GRUB. \u00cen imagine sunt incluse componente Xen, cum ar fi hipervizorul, nucleul pentru mediu-hosta (dom0), initrd, Xen KConfig, set\u0103rile XSM \u0219i Device Tree.\n<li class=\"l\"> Pentru platforma ARM a fost implementat\u0103 o capacitate experimental\u0103 de rulare a modelelor de dispozitive pe partea mediu-hosta dom0, permi\u021b\u00e2nd astfel emularea dispozitivelor hardware arbitrare pentru sistemele guest bazate pe arhitectura ARM. De asemenea, pentru ARM a fost implementat suportul SMMUv3 (System Memory Management Unit), care \u00eembun\u0103t\u0103\u021be\u0219te securitatea \u0219i fiabilitatea redirec\u021bion\u0103rii dispozitivelor pe sistemele ARM.\n<li class=\"l\"> A fost ad\u0103ugat\u0103 posibilitatea utiliz\u0103rii mecanismului de urm\u0103rire hardware IPT (Intel Processor Trace), disponibil \u00eencep\u00e2nd cu CPU Intel Broadwell, pentru exportarea datelor din sistemele guest \u00een utilitare de depanare rulate pe mediu-hosta. De exemplu, se pot utiliza VMI Kernel Fuzzer sau DRAKVUF Sandbox.\n<li class=\"l\"> A fost ad\u0103ugat suport pentru medii Viridian (Hyper-V) pentru a rula sisteme guest cu Windows, folosind mai mult de 64 VCPU.\n<li class=\"l\"> A fost modernizat\u0103 stratul PV Shim, utilizat pentru a rula sisteme guest paravirtualizate (PV) nemodificate \u00een medii PVH \u0219i HVM (permi\u021b\u00e2nd rularea sistemelor guest mai vechi \u00een medii mai sigure, care ofer\u0103 o izolare mai strict\u0103). \u00cen noua versiune, suportul pentru rularea sistemelor guest PV \u00een medii care accept\u0103 doar modul HVM a fost \u00eembun\u0103t\u0103\u021bit. Dimensiunea stratului a fost redus\u0103, datorit\u0103 comprim\u0103rii codului specific HVM.\n<li class=\"l\"> Func\u021bionalit\u0103\u021bile driverelor VirtIO pe sistemele ARM au fost extinse. Pentru sistemele ARM a fost propus\u0103 o implementare <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/dts-los-angeles\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3700\">server<\/a> IOREQ, care \u00een viitor va fi utilizat\u0103 pentru a \u00eembun\u0103t\u0103\u021bi virtualizarea input\/output cu folosirea protocoalelor VirtIO. A fost ad\u0103ugat\u0103 o implementare de referin\u021b\u0103 a unui dispozitiv bloc VirtIO pentru ARM \u0219i a fost oferit\u0103 posibilitatea de a transmite dispozitivele bloc VirtIO \u00een sistemele gazd\u0103 bazate pe arhitectura ARM. A \u00eenceput includerea suportului pentru virtualizarea PCIe pe ARM.\n<li class=\"l\"> Se continu\u0103 lucr\u0103rile de implementare a portului Xen pentru procesoarele RISC-V. \u00cen prezent se dezvolt\u0103 codul pentru gestionarea memoriei virtuale pe partea gazd\u0103 \u0219i a sistemelor gazd\u0103, precum \u0219i crearea de cod specific arhitecturii RISC-V.\n<li class=\"l\"> \u00cempreun\u0103 cu proiectul Zephyr bazat pe standardul MISRA_C sunt dezvoltate un set de cerin\u021be \u0219i ghiduri pentru formatarea codului, reduc\u00e2nd riscurile apari\u021biei problemelor de securitate. Pentru identificarea diferen\u021belor fa\u021b\u0103 de regulile create sunt aplicate analizatoare statice.\n<li class=\"l\"> A fost prezentat\u0103 ini\u021biativa Hyperlaunch, care are ca scop furnizarea de instrumente flexibile pentru configurarea lans\u0103rii unui set static <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/vps\/\"   title=\"ma\u0219ini virtuale\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2049\">ma\u0219ini virtuale<\/a> \u00een timpul boot\u0103rii sistemului. Ini\u021biativa propune conceptul domB (boot domain, f\u0103r\u0103 dom0), permi\u021b\u00e2nd evitarea desf\u0103\u0219ur\u0103rii unui mediu dom0 la lansarea ma\u0219inilor virtuale \u00een etapa incipient\u0103 a boot\u0103rii serverului.\n<li class=\"l\"> \u00cen sistemul de integrare continu\u0103, testarea Xen \u00een Alpine Linux \u0219i Ubuntu 20.04 a fost asigurat\u0103. Verificarea CentOS 6 a fost oprit\u0103. \u00cen mediu de integrare continu\u0103 pentru ARM au fost ad\u0103ugate teste dom0 \/ domU bazate pe QEMU.      <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54949\">opennet.ro<\/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 5.0.4 - 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