{"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\/sv\/blog\/news\/vypusk-gipervizora-xen-4-14","title":{"rendered":"Utgivningen av hypervisorn Xen 4.14","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Efter \u00e5tta m\u00e5naders utveckling <noindex><a rel=\"nofollow\" href=\"https:\/\/xenproject.org\/2020\/07\/24\/xen-project-hypervisor-version-4-14-brings-added-security-and-performance\/\">publicerades<\/a><\/noindex> sl\u00e4pp av den fria hypervisorn <noindex><a rel=\"nofollow\" href=\"https:\/\/www.xenproject.org\/\">Xen 4.14<\/a><\/noindex>. I utvecklingen av denna version deltog f\u00f6retag som Alibaba, Amazon, AMD, Arm, Bitdefender, Citrix, EPAM Systems, Huawei och Intel. Leveransen av uppdateringar f\u00f6r Xen 4.14-kedjan kommer att p\u00e5g\u00e5 fram till den 24 januari 2022, och publiceringen av s\u00e5rbarhetsfixar fram till den 24 juli 2023.<\/p>\n<p>Nyckel <noindex><a rel=\"nofollow\" href=\"http:\/\/wiki.xenproject.org\/wiki\/Xen_Project_4.14_Feature_List\">f\u00f6r<\/a><\/noindex> i Xen 4.14: <\/p>\n<ul>\n<li class=\"l\"> St\u00f6d f\u00f6r en ny enhetsmodell har lagts till <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.xenproject.org\/wiki\/Device_Model_Stub_Domains\">Linux stubdomain<\/a><\/noindex>, vilket m\u00f6jligg\u00f6r att utf\u00f6ra uppgifter med en separat icke-privilegierad anv\u00e4ndare, och separerar komponenterna f\u00f6r enhetsemulering fr\u00e5n Dom0. Tidigare kunde endast modellen f\u00f6r enheter &#171;qemu-traditional&#187; anv\u00e4ndas i stubdom\u00e4nl\u00e4ge, vilket begr\u00e4nsade spektrumet av emulerad h\u00e5rdvara. Den nya modellen <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.xen.org\/wiki\/Linux_stub_domains\">Linux stubomains<\/a><\/noindex> har utvecklats av QUBES OS-projektet och st\u00f6djer anv\u00e4ndningen av emuleringsdrivrutiner fr\u00e5n de senaste QEMU-versionerna, samt de tillg\u00e4ngliga funktionerna i QEMU f\u00f6r g\u00e4stsystem.\n<li class=\"l\"> F\u00f6r system med st\u00f6d f\u00f6r Intel EPT har st\u00f6d f\u00f6r skapande av l\u00e4tta avknoppningar (forks) av virtuella maskiner implementerats f\u00f6r snabb introspektion, exempelvis f\u00f6r analys av skadlig kod eller fuzzing-testning. I s\u00e5dana avknoppningar till\u00e4mpas delad minnesanv\u00e4ndning och ingen kloning av enhetsmodellen utf\u00f6rs.\n<li class=\"l\"> I systemet f\u00f6r live-patchar har bindning till identifierare av hypervisor-byggnader lagts till samt h\u00e4nsyn tagits till ordningen f\u00f6r applicering av patchar f\u00f6r att undvika \u00f6verlappning av patchar som inte \u00e4r avsedda f\u00f6r samma byggnad eller i fel ordning.\n<li class=\"l\"> St\u00f6d f\u00f6r CET-f\u00f6rl\u00e4ngningar (Intel Control-flow Enforcement Technology) har lagts till f\u00f6r att skydda mot exekvering av exploits som \u00e4r konstruerade med hj\u00e4lp av tekniker f\u00f6r \u00e5terv\u00e4ndande-orienterad programmering (ROP, Return-Oriented Programming).\n<li class=\"l\"> Inst\u00e4llningen CONFIG_PV32 har lagts till f\u00f6r att inaktivera st\u00f6d f\u00f6r 32-bitars para-virtualiserade (PV) g\u00e4stsystem i hypervisorn, samtidigt som 64-bitars st\u00f6d bibeh\u00e5lls.\n<li class=\"l\"> St\u00f6d f\u00f6r Hypervisor FS, en pseudo-FS i stil med sysfs, har lagts till f\u00f6r strukturerad \u00e5tkomst till interna data och inst\u00e4llningar f\u00f6r hypervisorn, utan att beh\u00f6va analysera loggar eller skriva hypervisorsanrop.\n<li class=\"l\"> M\u00f6jligheten att k\u00f6ra Xen som ett g\u00e4stsystem under Hyper-V-hypervisorn, som anv\u00e4nds i Microsoft Azures molnplattform, har tillhandah\u00e5llits. Att k\u00f6ra Xen inuti Hyper-V g\u00f6r det m\u00f6jligt att anv\u00e4nda den v\u00e4lbekanta virtualiseringsstacken i Azure-milj\u00f6er och ger m\u00f6jlighet att flytta virtuella maskiner mellan olika molnsystem.\n<li class=\"l\"> M\u00f6jligheten att generera ett slumpm\u00e4ssigt ID f\u00f6r g\u00e4stsystemet har lagts till (tidigare genererades ID:n sekventiellt). ID:n kan nu ocks\u00e5 sparas mellan operationer f\u00f6r sparande, \u00e5terst\u00e4llning och migrering av VM-status.\n<li class=\"l\"> Automatisk generering av bindningar f\u00f6r Go-spr\u00e5ket baserat p\u00e5 strukturer fr\u00e5n libxl har s\u00e4kerst\u00e4llts.\n<li class=\"l\"> F\u00f6r Windows 7, 8.x och 10 har st\u00f6d f\u00f6r KDD lagts till, ett verktyg f\u00f6r interaktion med WinDbg-debbugern, vilket m\u00f6jligg\u00f6r fels\u00f6kning av Windows-milj\u00f6er utan att debug-l\u00e4ge beh\u00f6ver aktiveras i g\u00e4st-OS.\n<li class=\"l\"> St\u00f6d f\u00f6r alla varianter av Raspberry Pi 4-kort som levereras med 4GB och 8GB RAM har lagts till.\n<li class=\"l\"> Har lagt till st\u00f6d f\u00f6r AMD EPYC-processorer med kodnamnet &#171;Milan&#187;.\n<li class=\"l\"> Prestanda f\u00f6r inb\u00e4ddad virtualisering, d\u00e4r Xen k\u00f6rs inuti g\u00e4stsystem byggda p\u00e5 Xen eller Viridian, har \u00f6kats.\n<li class=\"l\"> I emuleringsl\u00e4ge har st\u00f6d f\u00f6r AVX512_BF16-instruktioner implementerats.\n<li class=\"l\"> Byggprocessen f\u00f6r hypervisorn har \u00f6verg\u00e5tt till att anv\u00e4nda Kbuild.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>K\u00e4lla: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53440\">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 4.14. \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 5.0.4 - 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\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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