{"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\/ro\/blog\/news\/vypusk-gipervizora-xen-4-14","title":{"rendered":"Lansarea hipervizorului Xen 4.14","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dup\u0103 opt luni de dezvoltare <noindex><a rel=\"nofollow\" href=\"https:\/\/xenproject.org\/2020\/07\/24\/xen-project-hypervisor-version-4-14-brings-added-security-and-performance\/\">publicat<\/a><\/noindex> lansarea hipervizorului liber <noindex><a rel=\"nofollow\" href=\"https:\/\/www.xenproject.org\/\">Xen 4.14<\/a><\/noindex>. La dezvoltarea noului release au participat companii precum Alibaba, Amazon, AMD, Arm, Bitdefender, Citrix, EPAM Systems, Huawei \u0219i Intel. R\u0103sp\u00e2ndirea actualiz\u0103rilor pentru ramura Xen 4.14 va continua p\u00e2n\u0103 la 24 ianuarie 2022, iar publicarea corecturilor de vulnerabilitate p\u00e2n\u0103 la 24 iulie 2023.<\/p>\n<p>Principalele <noindex><a rel=\"nofollow\" href=\"http:\/\/wiki.xenproject.org\/wiki\/Xen_Project_4.14_Feature_List\">modific\u0103ri<\/a><\/noindex> \u00een Xen 4.14: <\/p>\n<ul>\n<li class=\"l\"> A fost ad\u0103ugat suport pentru un nou model de dispozitive <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.xenproject.org\/wiki\/Device_Model_Stub_Domains\">Linux stubdomain<\/a><\/noindex>, permi\u021b\u00e2nd organizarea execu\u021biei sub un utilizator neprivilegiat, separ\u00e2nd componentele pentru emularea dispozitivelor de Dom0. Anterior, \u00een modul stubdomain, se putea folosi doar modelul de dispozitive \u201eqemu-traditional\u201d, ceea ce limita gama de echipamente emulate. Noua model <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.xen.org\/wiki\/Linux_stub_domains\">Linux stubomains<\/a><\/noindex> a fost dezvoltat de proiectul QUBES OS \u0219i suport\u0103 utilizarea driverelor de emulare din cele mai recente lans\u0103ri QEMU, precum \u0219i func\u021bionalit\u0103\u021bile disponibile \u00een QEMU pentru sistemele gazd\u0103.\n<li class=\"l\"> Pentru sistemele cu suport Intel EPT, a fost implementat suportul pentru crearea ramifica\u021biilor u\u0219oare (fork-uri) ale ma\u0219inilor virtuale pentru a efectua introspec\u021bie rapid\u0103, de exemplu, pentru analiza software-ului mali\u021bios sau fuzzing-testing. \u00cen aceste fork-uri se folose\u0219te partajarea memoriei \u0219i nu se efectueaz\u0103 clonarea modelului de dispozitive.\n<li class=\"l\"> \u00cen sistemul de live-patching a fost ad\u0103ugat\u0103 leg\u0103tura cu identificatoarele versiunilor hipervizorului \u0219i contabilizarea ordinii aplic\u0103rii patch-urilor pentru a exclude suprapunerile patch-urilor care nu sunt pentru acea versiune sau nu sunt \u00een ordinea corect\u0103.\n<li class=\"l\"> A fost ad\u0103ugat suport pentru extensiile CET (Intel Control-flow Enforcement Technology) pentru protec\u021bia \u00eempotriva execut\u0103rii exploit-urilor construite folosind tehnici de programare orientat\u0103 pe return\u0103ri (ROP, Return-Oriented Programming).\n<li class=\"l\"> A fost ad\u0103ugat\u0103 op\u021biunea CONFIG_PV32 pentru a dezactiva \u00een hipervizor suportul pentru sisteme gazd\u0103 paravirtualizate de 32 de bi\u021bi (PV), p\u0103str\u00e2nd \u00een acela\u0219i timp suportul pentru cele de 64 de bi\u021bi.\n<li class=\"l\"> A fost ad\u0103ugat suport pentru Hypervisor FS, un pseudo-FS de stil sysfs pentru acces structurat la datele interne \u0219i set\u0103rile hipervizorului, f\u0103r\u0103 a necesita analizarea jurnalelor sau scrierea de hipervizor.\n<li class=\"l\"> S-a dat posibilitatea de a rula Xen ca sistem de operare guest sub conducerea hipervizorului Hyper-V, utilizat \u00een platforma cloud Microsoft Azure. Rularea Xen \u00een interiorul Hyper-V permite utilizarea stivei de virtualizare obi\u0219nuite \u00een medii cloud Azure \u0219i faciliteaz\u0103 mutarea ma\u0219inilor virtuale \u00eentre diferite sisteme cloud.\n<li class=\"l\"> A fost ad\u0103ugat\u0103 posibilitatea de a genera un identificator aleatoriu pentru sistemul de operare guest (anterior, identificatorii erau genera\u021bi secven\u021bial). Identificatorii pot acum s\u0103 fie salva\u021bi \u00eentre opera\u021biile de salvare, recuperare \u0219i migrare a st\u0103rii VM.\n<li class=\"l\"> A fost asigurat\u0103 generarea automat\u0103 a binding-urilor pentru limbajul Go pe baza structurilor libxl.\n<li class=\"l\"> Pentru Windows 7, 8.x \u0219i 10, a fost ad\u0103ugat\u0103 suportul pentru KDD, un utilitar pentru interac\u021biunea cu debugger-ul WinDbg (Windows Debugger), care permite debuggarea mediilor Windows f\u0103r\u0103 a activa depanarea \u00een sistemul de operare guest.\n<li class=\"l\"> A fost ad\u0103ugat\u0103 suportul pentru toate variantele pl\u0103cii Raspberry Pi 4, livrate cu 4GB \u0219i 8GB de RAM.\n<li class=\"l\"> A fost ad\u0103ugat\u0103 suportul pentru procesoarele AMD EPYC cu numele de cod \u201eMilan\u201d.\n<li class=\"l\"> Performan\u021ba virtualiz\u0103rii \u00eenn\u0103scute a fost \u00eembun\u0103t\u0103\u021bit\u0103, \u00een care Xen ruleaz\u0103 \u00een interiorul sistemelor guest bazate pe Xen sau Viridian.\n<li class=\"l\"> \u00cen modul de emulare, a fost implementat suportul pentru instruc\u021biunile AVX512_BF16.\n<li class=\"l\"> Asamblarea hipervizorului a fost trecut\u0103 la utilizarea Kbuild.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Sursa: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53440\">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 4.14. \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 5.0.2.1 - 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\" 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