{"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\/sl\/blog\/news\/vypusk-gipervizora-xen-4-15","title":{"rendered":"Izid hipervizorja Xen 4.15","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po osmih mesecih razvoja je izdan prosto dostopen hipervizor Xen 4.15. V razvoju nove izdaje so sodelovale podjetja, kot so Amazon, Arm, Bitdefender, Citrix in EPAM Systems. Izdaja posodobitev za veje Xen 4.15 bo trajala do 8. oktobra 2022, objava popravkov ranljivosti pa do 8. aprila 2024.      <\/p>\n<p>Klju\u010dne spremembe v Xen 4.15:   <\/p>\n<ul>\n<li class=\"l\"> V procesih Xenstored in oxenstored je bila uvedena eksperimentalna podpora za \u017eive posodobitve, ki omogo\u010dajo dostavo in uporabo popravkov ranljivosti brez ponovnega zagona gostiteljskega okolja.\n<li class=\"l\"> Dodana je podpora za enotne zagonske slike, ki omogo\u010dajo ustvarjanje sistemskih slik, ki vklju\u010dujejo tudi komponente Xen. Tak\u0161ne slike so oblikovane kot ena binarna datoteka za EFI, ki se lahko uporablja za zagon delujo\u010dega Xen sistema neposredno iz zagonskega upravljalnika EFI brez vmesnih zaganjalnikov, kot je GRUB. V sliko so vklju\u010dene komponente Xen, kot so hipervizor, jedro za gostiteljsko okolje (dom0), initrd, Xen KConfig, nastavitve XSM in Device Tree.\n<li class=\"l\"> Za platformo ARM je bila uvedena eksperimentalna mo\u017enost izvajanja modelov naprav na strani gostiteljskega sistema dom0, kar omogo\u010da emulacijo poljubnih strojnih naprav za gostujo\u010de sisteme, zasnovane na arhitekturi ARM. Za ARM je bila prav tako uvedena podpora za SMMUv3 (System Memory Management Unit), ki pove\u010duje varnost in zanesljivost preusmerjanja naprav na ARM sistemih.\n<li class=\"l\"> Dodana je mo\u017enost uporabe mehanizma strojne sledenja IPT (Intel Processor Trace), ki je na voljo od procesorjev Intel Broadwell, za izvoz podatkov iz gostujo\u010dih sistemov v orodja za odpravljanje napak, ki se izvajajo na strani gostiteljskega sistema. Na primer, lahko se uporablja VMI Kernel Fuzzer ali DRAKVUF Sandbox.\n<li class=\"l\"> Dodana je podpora za okolja Viridian (Hyper-V) za zagon gostujo\u010dih sistemov z Windows, ki uporabljajo ve\u010d kot 64 VCPU.\n<li class=\"l\"> Modernizirana je bila plast PV Shim, ki se uporablja za zagon nespremenjenih paravirtualiziranih gostujo\u010dih sistemov (PV) v okoljih PVH in HVM (omogo\u010da izvajanje starej\u0161ih gostujo\u010dih sistemov v bolj varnih okoljih, ki zagotavljajo stro\u017ejo izolacijo). V novi razli\u010dici je izbolj\u0161ana podpora za zagon gostujo\u010dih sistemov PV v okoljih, ki podpirajo le na\u010din HVM. Zmanj\u0161ana je velikost plasti zaradi zmanj\u0161anja HVM-specifi\u010dnega kode.\n<li class=\"l\"> Raz\u0161irjene zmogljivosti gonilnikov VirtIO za sisteme ARM. Za sisteme ARM je predlagana implementacija <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sl\/server\/dts-los-angeles\/\"   title=\"stre\u017enika\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3700\">stre\u017enika<\/a> IOREQ, ki bo v prihodnje uporabljena za okrepitev virtualizacije vnosa\/izvoda z uporabo protokolov VirtIO. Dodana je referen\u010dna implementacija blok naprave VirtIO za ARM in omogo\u010deno prena\u0161anje blokovnih naprav VirtIO v gostiteljske sisteme na arhitekturi ARM. Za\u010dela se je vklju\u010ditev podpore za virtualizacijo PCIe za ARM.\n<li class=\"l\"> Poteka delo na implementaciji portiranja Xen za procesorje RISC-V. V trenutku se razvija koda za upravljanje virtualne pomnilnosti na strani gostitelja in gostov, prav tako se ustvarja koda specifi\u010dna za arhitekturo RISC-V.\n<li class=\"l\"> Skupaj s projektom Zephyr, ki temelji na standardu MISRA_C, se razvija niz zahtev in smernic za oblikovanje kode, ki zmanj\u0161ujejo tveganja nastanka te\u017eav z varnostjo. Za odkrivanje odstopanj od ustvarjenih pravil se uporabljajo stati\u010dni analizatorji.\n<li class=\"l\"> Predstavljena je pobuda Hyperlaunch, ki je usmerjena v zagotavljanje fleksibilnih orodij za nastavitev zagona stati\u010dnega sklopa <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sl\/vps\/\"   title=\"virtualnih naprav\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2049\">virtualnih naprav<\/a> med zagonom sistema. Pobuda ponuja koncept domB (boot domain, dom0less), ki omogo\u010da izognitev uvajanju okolja dom0 pri zagonu virtualnih strojev v zgodnji fazi zagona stre\u017enika.\n<li class=\"l\"> V sistemu za neprekinjeno integracijo je zagotovljeno testiranje Xen v Alpine Linux in Ubuntu 20.04. Prekinjeno je preverjanje CentOS 6. V okolje neprekinjene integracije za ARM so dodani testi dom0 \/ domU na osnovi QEMU.      <\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54949\">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 4.15. \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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