{"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\/cs\/blog\/news\/vypusk-gipervizora-xen-4-14","title":{"rendered":"Vyd\u00e1n\u00ed hypervizoru Xen 4.14","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po osmi m\u011bs\u00edc\u00edch v\u00fdvoje <noindex><a rel=\"nofollow\" href=\"https:\/\/xenproject.org\/2020\/07\/24\/xen-project-hypervisor-version-4-14-brings-added-security-and-performance\/\">byla vyd\u00e1na<\/a><\/noindex> byl vyd\u00e1n voln\u00fd hypervizor <noindex><a rel=\"nofollow\" href=\"https:\/\/www.xenproject.org\/\">Xen 4.14<\/a><\/noindex>. Na v\u00fdvoji nov\u00e9 verze se pod\u00edlely spole\u010dnosti jako Alibaba, Amazon, AMD, Arm, Bitdefender, Citrix, EPAM Systems, Huawei a Intel. Podpora aktualizac\u00ed pro v\u011btev Xen 4.14 potrv\u00e1 do 24. ledna 2022 a publikace oprav bezpe\u010dnostn\u00edch zranitelnost\u00ed a\u017e do 24. \u010dervence 2023.<\/p>\n<p>Kl\u00ed\u010dov\u00e9 <noindex><a rel=\"nofollow\" href=\"http:\/\/wiki.xenproject.org\/wiki\/Xen_Project_4.14_Feature_List\">zm\u011bny<\/a><\/noindex> ve Xen 4.14: <\/p>\n<ul>\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora nov\u00e9 modelu za\u0159\u00edzen\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.xenproject.org\/wiki\/Device_Model_Stub_Domains\">Linux stubdomain<\/a><\/noindex>, kter\u00e1 umo\u017e\u0148uje vykon\u00e1vat \u00falohy pod jednotliv\u00fdm neprivilegovan\u00fdm u\u017eivatelem, \u010d\u00edm\u017e odd\u011bluje komponenty pro emulaci za\u0159\u00edzen\u00ed od Dom0. D\u0159\u00edve bylo v re\u017eimu stubdomain mo\u017en\u00e9 pou\u017e\u00edvat pouze model za\u0159\u00edzen\u00ed \u201eqemu-traditional\u201c, co\u017e omezovalo spektrum emulovan\u00e9ho hardwaru. Nov\u00fd model <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.xen.org\/wiki\/Linux_stub_domains\">Linux stubomains<\/a><\/noindex> byl vyvinut projektem QUBES OS a podporuje pou\u017eit\u00ed emula\u010dn\u00edch ovlada\u010d\u016f z nejnov\u011bj\u0161\u00edch verz\u00ed QEMU, stejn\u011b jako dostupn\u00e9 v QEMU souvisej\u00edc\u00ed funkce pro hostitelsk\u00e9 syst\u00e9my.\n<li class=\"l\"> Pro syst\u00e9my s podporou Intel EPT byla implementov\u00e1na podpora vytv\u00e1\u0159en\u00ed lehk\u00fdch odbo\u010dek (fork\u016f) virtu\u00e1ln\u00edch stroj\u016f pro rychlou introspekci, nap\u0159\u00edklad pro anal\u00fdzu malwaru nebo fuzzingov\u00e9 testov\u00e1n\u00ed. V t\u011bchto fork\u00e1ch se pou\u017e\u00edv\u00e1 sd\u00edlen\u00ed pam\u011bti a nedoch\u00e1z\u00ed k duplikaci modelu za\u0159\u00edzen\u00ed.\n<li class=\"l\"> Do syst\u00e9mu live-patch\u016f byla p\u0159id\u00e1na vazba na identifik\u00e1tory sestaven\u00ed hypervizoru a zohledn\u011bn\u00ed po\u0159ad\u00ed aplikace patch\u016f, aby se zabr\u00e1nilo nanesen\u00ed patch\u016f na nespr\u00e1vn\u00e9 sestaven\u00ed nebo ve \u0161patn\u00e9m po\u0159ad\u00ed.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora roz\u0161\u00ed\u0159en\u00ed CET (Intel Control-flow Enforcement Technology) pro ochranu proti vykon\u00e1v\u00e1n\u00ed exploit\u016f zalo\u017een\u00fdch na technik\u00e1ch n\u00e1vratov\u011b orientovan\u00e9ho programov\u00e1n\u00ed (ROP, Return-Oriented Programming).\n<li class=\"l\"> Byla p\u0159id\u00e1na konfigurace CONFIG_PV32 pro deaktivaci podpory 32bitov\u00fdch paravirtualizovan\u00fdch (PV) hostitelsk\u00fdch syst\u00e9m\u016f v hypervizoru, s ponech\u00e1n\u00edm podpory 64bitov\u00fdch.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora Hypervisor FS, pseudo-FS ve stylu sysfs pro strukturovan\u00fd p\u0159\u00edstup k intern\u00edm dat\u016fm a nastaven\u00edm hypervizoru, kter\u00fd nevy\u017eaduje anal\u00fdzu log\u016f nebo psan\u00ed hyperzvan\u00ed.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost spu\u0161t\u011bn\u00ed Xen jako hostitelsk\u00e9ho syst\u00e9mu pod spr\u00e1vou hypervizoru Hyper-V, kter\u00fd se pou\u017e\u00edv\u00e1 na cloudov\u00e9 platform\u011b Microsoft Azure. Spu\u0161t\u011bn\u00ed Xen uvnit\u0159 Hyper-V umo\u017e\u0148uje vyu\u017e\u00edvat zn\u00e1m\u00fd virtualiza\u010dn\u00ed stak v cloudov\u00fdch prost\u0159ed\u00edch Azure a poskytuje mo\u017enost p\u0159esunout virtu\u00e1ln\u00ed stroje mezi r\u016fzn\u00fdmi cloudov\u00fdmi syst\u00e9my.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost generov\u00e1n\u00ed n\u00e1hodn\u00e9ho identifik\u00e1toru hostitelsk\u00e9ho syst\u00e9mu (d\u0159\u00edve byly identifik\u00e1tory generov\u00e1ny sekven\u010dn\u011b). Identifik\u00e1tory nyn\u00ed tak\u00e9 mohou b\u00fdt uchov\u00e1v\u00e1ny mezi operacemi ukl\u00e1d\u00e1n\u00ed, obnovy a migrace stavu VM.\n<li class=\"l\"> Zaji\u0161t\u011bna automatick\u00e1 generace binding\u016f pro jazyk Go na z\u00e1klad\u011b struktur libxl.\n<li class=\"l\"> Pro Windows 7, 8.x a 10 byla p\u0159id\u00e1na podpora KDD, n\u00e1stroje pro interakci s debuggerem WinDbg (Windows Debugger), co\u017e umo\u017e\u0148uje ladit prost\u0159ed\u00ed s Windows bez zapnut\u00ed lad\u011bn\u00ed v hostitelsk\u00e9m OS.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora v\u0161ech variant desky Raspberry Pi 4 dod\u00e1van\u00fdch s 4GB a 8GB RAM.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora procesor\u016f AMD EPYC s k\u00f3dov\u00fdm n\u00e1zvem \u201eMilan\u201c.\n<li class=\"l\"> Zv\u00fd\u0161ena v\u00fdkonnost vno\u0159en\u00e9 virtualizace, p\u0159i kter\u00e9 Xen b\u011b\u017e\u00ed uvnit\u0159 hostitelsk\u00fdch syst\u00e9m\u016f na z\u00e1klad\u011b Xen nebo Viridian.\n<li class=\"l\"> V re\u017eimu emulace byla implementov\u00e1na podpora instrukc\u00ed AVX512_BF16.\n<li class=\"l\"> Sestaven\u00ed hypervizoru bylo p\u0159evedeno na pou\u017eit\u00ed Kbuild.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <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 5.0.3 - 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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