{"id":102492,"date":"2021-12-06T15:36:44","date_gmt":"2021-12-06T13:36:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-gipervizorov-xen-4-16-i-intel-cloud-hypervisor-20-0"},"modified":"2021-12-06T15:36:44","modified_gmt":"2021-12-06T13:36:44","slug":"vypusk-gipervizorov-xen-4-16-i-intel-cloud-hypervisor-20-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-gipervizorov-xen-4-16-i-intel-cloud-hypervisor-20-0","title":{"rendered":"Vyd\u00e1n\u00ed hypervizor\u016f Xen 4.16 a Intel Cloud Hypervisor 20.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po osmi m\u011bs\u00edc\u00edch v\u00fdvoje byl zve\u0159ejn\u011bn release svobodn\u00e9ho hypervizoru Xen 4.16. Na v\u00fdvoji nov\u00e9 verze se pod\u00edlely spole\u010dnosti jako Amazon, Arm, Bitdefender, Citrix a EPAM Systems. Vyd\u00e1v\u00e1n\u00ed aktualizac\u00ed pro verzi Xen 4.16 potrv\u00e1 do 2. \u010dervna 2023 a publikace oprav zranitelnost\u00ed do 2. prosince 2024.      <\/p>\n<p>Kl\u00ed\u010dov\u00e9 zm\u011bny v Xen 4.16:   <\/p>\n<ul>\n<li class=\"l\"> V TPM Manageru, kter\u00fd zaji\u0161\u0165uje provoz virtu\u00e1ln\u00edch \u010dip\u016f pro ukl\u00e1d\u00e1n\u00ed kryptografick\u00fdch kl\u00ed\u010d\u016f (vTPM), realizovan\u00fdch na z\u00e1klad\u011b spole\u010dn\u00e9ho fyzick\u00e9ho TPM (Trusted Platform Module), byly provedeny opravy pro n\u00e1slednou implementaci podpory specifikace TPM 2.0.\n<li class=\"l\"> Byla zv\u00fd\u0161ena z\u00e1vislost na vrstv\u011b PV Shim, kter\u00e1 se pou\u017e\u00edv\u00e1 k spu\u0161t\u011bn\u00ed nemodifikovan\u00fdch paravirtualizovan\u00fdch hostitelsk\u00fdch syst\u00e9m\u016f (PV) v prost\u0159ed\u00edch PVH a HVM. V budoucnu bude mo\u017en\u00e9 pou\u017e\u00edvat 32-bitov\u00e9 paravirtualizovan\u00e9 hostitelsk\u00e9 syst\u00e9my pouze v re\u017eimu PV Shim, co\u017e sn\u00ed\u017e\u00ed po\u010det m\u00edst v hypervizoru, kde mohou potenci\u00e1ln\u011b b\u00fdt zranitelnosti.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost spou\u0161t\u011bn\u00ed na za\u0159\u00edzen\u00edch Intel bez programovateln\u00e9ho \u010dasova\u010de (PIT, Programmable Interval Timer).\n<li class=\"l\"> Byla provedena \u00fadr\u017eba zastaral\u00fdch komponent\u016f, zastavila se standardn\u00ed kompilace k\u00f3du &#171;qemu-xen-traditional&#187; a PV-Grub (pot\u0159eba specifick\u00fdch fork\u016f pro Xen ji\u017e vymizela po p\u0159enesen\u00ed zm\u011bn s podporou Xen do hlavn\u00edho j\u00e1dra QEMU a Grub).\n<li class=\"l\"> Pro hostitelsk\u00e9 syst\u00e9my s architekturou ARM byla implementov\u00e1na po\u010d\u00e1te\u010dn\u00ed podpora virtualizovan\u00fdch po\u010d\u00edtadel pro sledov\u00e1n\u00ed v\u00fdkonu (Performance Monitor Counters).\n<li class=\"l\"> Byla vylep\u0161ena podpora re\u017eimu dom0less, kter\u00e1 umo\u017e\u0148uje obej\u00edt se bez nasazen\u00ed prost\u0159ed\u00ed dom0 p\u0159i spu\u0161t\u011bn\u00ed. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/vps\/\"   title=\"virtu\u00e1ln\u00edch stroj\u016f\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2079\">virtu\u00e1ln\u00edch stroj\u016f<\/a> v ran\u00e9 f\u00e1zi spu\u0161t\u011bn\u00ed serveru. Zm\u011bny umo\u017enily implementaci podpory 64-bitov\u00fdch syst\u00e9m\u016f ARM s EFI firmwarem.\n<li class=\"l\"> Byla vylep\u0161ena podpora heterogenn\u00edch 64-bitov\u00fdch syst\u00e9m\u016f ARM na z\u00e1klad\u011b architektury big.LITTLE, kter\u00e1 kombinuje v jednom \u010dipu v\u00fdkonn\u00e9, ale energeticky n\u00e1ro\u010dn\u00e9 j\u00e1dra, a m\u00e9n\u011b v\u00fdkonn\u00e1, ale energeticky efektivn\u00ed j\u00e1dra.    <\/ul>\n<p>Sou\u010dasn\u011b spole\u010dnost Intel publikovala vyd\u00e1n\u00ed hypervizoru Cloud Hypervisor 20.0, postaven\u00e9ho na z\u00e1kladech spole\u010dn\u00e9ho projektu Rust-VMM, do kter\u00e9ho krom\u011b Intelu zapojuj\u00ed tak\u00e9 spole\u010dnosti Alibaba, Amazon, Google a Red Hat. Rust-VMM je naps\u00e1n v jazyce Rust a umo\u017e\u0148uje vytv\u00e1\u0159en\u00ed hypervizor\u016f specifick\u00fdch pro ur\u010dit\u00e9 \u00fakoly. Cloud Hypervisor je jedn\u00edm z takov\u00fdch hypervizor\u016f, kter\u00fd poskytuje vysoce \u00farov\u0148ov\u00fd monitor virtu\u00e1ln\u00edch stroj\u016f (VMM) funguj\u00edc\u00ed nad KVM a optimalizovan\u00fd pro \u0159e\u0161en\u00ed \u00fakol\u016f charakteristick\u00fdch pro cloudov\u00e9 syst\u00e9my. Zdrojov\u00fd k\u00f3d projektu je dostupn\u00fd pod licenc\u00ed Apache 2.0.    <\/p>\n<p>Cloud Hypervisor se zam\u011b\u0159uje na spu\u0161t\u011bn\u00ed modern\u00edch distribuc\u00ed Linuxu pomoc\u00ed paravirtualizovan\u00fdch za\u0159\u00edzen\u00ed na b\u00e1zi virtio. Mezi kl\u00ed\u010dov\u00e9 \u00fakoly pat\u0159\u00ed: vysok\u00e1 reaktivita, n\u00edzk\u00e1 spot\u0159eba pam\u011bti, vysok\u00fd v\u00fdkon, zjednodu\u0161en\u00ed konfigurace a sn\u00ed\u017een\u00ed mo\u017en\u00fdch vektor\u016f pro \u00fatoky. Podpora emulace byla minimalizov\u00e1na a d\u016fraz je kladen na paravirtualizaci. V sou\u010dasnosti je podporov\u00e1no pouze x86_64, av\u0161ak pl\u00e1nuje se tak\u00e9 podpora AArch64. Ze syst\u00e9m\u016f hostitel\u016f je prozat\u00edm podporov\u00e1na pouze 64bitov\u00e1 vyd\u00e1n\u00ed Linuxu. Konfigurace CPU, pam\u011bti, PCI a NVDIMM se prov\u00e1d\u00ed b\u011bhem sestaven\u00ed. Je zaji\u0161t\u011bna mo\u017enost migrace virtu\u00e1ln\u00edch stroj\u016f mezi <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/dts-dusseldorf\/\"   title=\"servery\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3446\">servery<\/a>.       <\/p>\n<p>V nov\u00e9 verzi:  <\/p>\n<ul>\n<li class=\"l\">  Pro architektury x86_64 a aarch64 je nyn\u00ed povoleno vytvo\u0159en\u00ed a\u017e 16 PCI segment\u016f, co\u017e zvy\u0161uje celkov\u00fd po\u010det povolen\u00fdch PCI za\u0159\u00edzen\u00ed z 31 na 496.\n<li class=\"l\"> Byla implementov\u00e1na podpora v\u00e1z\u00e1n\u00ed virtu\u00e1ln\u00edch CPU na fyzick\u00e1 j\u00e1dra CPU (CPU pinning). Ka\u017ed\u00fd vCPU m\u016f\u017ee nyn\u00ed m\u00edt ur\u010denou omezenou sadu hostitelsk\u00fdch CPU, na kter\u00fdch je povoleno vykon\u00e1v\u00e1n\u00ed, co\u017e m\u016f\u017ee b\u00fdt u\u017eite\u010dn\u00e9 p\u0159i p\u0159\u00edm\u00e9m odr\u00e1\u017een\u00ed (1:1) zdroj\u016f hostitele a hostitelsk\u00e9ho syst\u00e9mu nebo p\u0159i spu\u0161t\u011bn\u00ed virtu\u00e1ln\u00edho stroje na ur\u010dit\u00e9m uzlu NUMA.\n<li class=\"l\"> Byla vylep\u0161ena podpora virtualizace vstupu\/v\u00fdstupu. Ka\u017ed\u00fd region VFIO m\u016f\u017ee nyn\u00ed b\u00fdt odra\u017een v pam\u011bti, co\u017e sni\u017euje po\u010det operac\u00ed v\u00fdstupu z virtu\u00e1ln\u00edho stroje a zvy\u0161uje v\u00fdkon p\u0159ed\u00e1v\u00e1n\u00ed za\u0159\u00edzen\u00ed do virtu\u00e1ln\u00edho stroje.\n<li class=\"l\"> V k\u00f3du napsan\u00e9m v jazyce Rust byla provedena pr\u00e1ce na nahrazen\u00ed unsafe sekc\u00ed alternativn\u00edmi implementacemi prov\u00e1d\u011bn\u00fdmi v re\u017eimu safe. Pro zb\u00fdvaj\u00edc\u00ed unsafe sekce byly p\u0159id\u00e1ny podrobn\u00e9 koment\u00e1\u0159e vysv\u011btluj\u00edc\u00ed, pro\u010d lze pova\u017eovat ponechan\u00fd unsafe k\u00f3d za bezpe\u010dn\u00fd.  <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56278\">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 4.16. \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 4.16 \u043f\u0440\u043e\u0434\u043b\u0438\u0442\u0441\u044f \u0434\u043e 2 \u0438\u044e\u043d\u044f 2023 \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 2 \u0434\u0435\u043a\u0430\u0431\u0440\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 4.16: \u0412 TPM Manager, [&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-102492","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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