{"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\/pl\/blog\/news\/vypusk-gipervizora-xen-4-15","title":{"rendered":"Wydanie hyperwizora Xen 4.15","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po o\u015bmiu miesi\u0105cach prac opublikowano wydanie wolnego hyperwizora Xen 4.15. W opracowaniu nowego wydania bra\u0142y udzia\u0142 takie firmy, jak Amazon, Arm, Bitdefender, Citrix i EPAM Systems. Wydawanie aktualizacji dla ga\u0142\u0119zi Xen 4.15 potrwa do 8 pa\u017adziernika 2022 roku, a publikacja poprawek luk bezpiecze\u0144stwa do 8 kwietnia 2024 roku.      <\/p>\n<p>Kluczowe zmiany w Xen 4.15:   <\/p>\n<ul>\n<li class=\"l\"> W procesach Xenstored i oxenstored wprowadzono eksperymentalne wsparcie dla live-update, umo\u017cliwiaj\u0105ce dostarczanie i stosowanie poprawek luk bezpiecze\u0144stwa bez ponownego uruchamiania \u015brodowiska hosta.\n<li class=\"l\"> Dodano wsparcie dla zunifikowanych obraz\u00f3w rozruchowych, kt\u00f3re umo\u017cliwiaj\u0105 tworzenie obraz\u00f3w systemowych zawieraj\u0105cych r\u00f3wnie\u017c komponenty Xen. Takie obrazy s\u0105 przedstawione w formie jednego pliku binarnego dla EFI, kt\u00f3ry mo\u017cna wykorzysta\u0107 do uruchomienia dzia\u0142aj\u0105cego systemu Xen bezpo\u015brednio z mened\u017cera rozruchu EFI bez po\u015brednich bootloader\u00f3w, takich jak GRUB. Obraz zawiera takie komponenty Xen, jak hyperwizor, j\u0105dro dla \u015brodowiska hosta (dom0), initrd, Xen KConfig, ustawienia XSM oraz Device Tree.\n<li class=\"l\"> Dla platformy ARM wdro\u017cono eksperymentaln\u0105 mo\u017cliwo\u015b\u0107 uruchamiania modeli urz\u0105dze\u0144 po stronie systemu hosta dom0, co pozwala na emulacj\u0119 dowolnych urz\u0105dze\u0144 sprz\u0119towych dla system\u00f3w go\u015bcinnych opartych na architekturze ARM. Dla ARM wdro\u017cono tak\u017ce wsparcie dla SMMUv3 (System Memory Management Unit), co zwi\u0119ksza bezpiecze\u0144stwo i niezawodno\u015b\u0107 przekazywania urz\u0105dze\u0144 w systemach ARM.\n<li class=\"l\"> Dodano mo\u017cliwo\u015b\u0107 wykorzystania mechanizmu sprz\u0119towego \u015bledzenia IPT (Intel Processor Trace), dost\u0119pnego od CPU Intel Broadwell, do eksportu danych z system\u00f3w go\u015bcinnych do narz\u0119dzi debuguj\u0105cych uruchamianych po stronie systemu hosta. Na przyk\u0142ad, mo\u017cna wykorzysta\u0107 VMI Kernel Fuzzer lub DRAKVUF Sandbox.\n<li class=\"l\"> Dodano wsparcie dla \u015brodowisk Viridian (Hyper-V) do uruchamiania system\u00f3w go\u015bcinnych z systemem Windows, kt\u00f3re wykorzystuj\u0105 wi\u0119cej ni\u017c 64 vCPU.\n<li class=\"l\"> Zmodernizowano warstw\u0119 PV Shim, stosowan\u0105 do uruchamiania niemodyfikowanych system\u00f3w go\u015bcinnych z parawirtualizacj\u0105 (PV) w \u015brodowiskach PVH i HVM (umo\u017cliwia to prac\u0119 starszych system\u00f3w go\u015bcinnych w bardziej bezpiecznych \u015brodowiskach, zapewniaj\u0105cych surowsz\u0105 izolacj\u0119). W nowej wersji poprawiono wsparcie dla uruchamiania system\u00f3w go\u015bcinnych PV w \u015brodowiskach, kt\u00f3re obs\u0142uguj\u0105 tylko tryb HVM. Zredukowano rozmiar warstwy dzi\u0119ki skr\u00f3ceniu kodu specyficznego dla HVM.\n<li class=\"l\"> Rozszerzone mo\u017cliwo\u015bci sterownik\u00f3w VirtIO w systemach ARM. Dla system\u00f3w ARM zaproponowano implementacj\u0119 <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/dts-los-angeles\/\"   title=\"serwera\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3700\">serwera<\/a> IOREQ, kt\u00f3ry planuje si\u0119 wykorzysta\u0107 w przysz\u0142o\u015bci do poprawy wirtualizacji wej\u015bcia\/wyj\u015bcia z u\u017cyciem protoko\u0142\u00f3w VirtIO. Dodano referencyjn\u0105 implementacj\u0119 blokowego urz\u0105dzenia VirtIO dla ARM oraz umo\u017cliwiono przesy\u0142anie blokowych urz\u0105dze\u0144 VirtIO do system\u00f3w go\u015bcinnych opartych na architekturze ARM. Rozpocz\u0119to w\u0142\u0105czanie wsparcia dla wirtualizacji PCIe dla ARM.\n<li class=\"l\"> Trwaj\u0105 prace nad implementacj\u0105 portu Xen dla procesor\u00f3w RISC-V. Obecnie w toku jest rozw\u00f3j kodu do zarz\u0105dzania pami\u0119ci\u0105 wirtualn\u0105 po stronie hosta i system\u00f3w go\u015bcinnych, a tak\u017ce tworzenie kodu specyficznego dla architektury RISC-V.\n<li class=\"l\"> Wsp\u00f3lnie z projektem Zephyr, opartym na standardzie MISRA_C, rozwija si\u0119 zestaw wymaga\u0144 i wytycznych dotycz\u0105cych formatu kodu, zmniejszaj\u0105cych ryzyko pojawiania si\u0119 problem\u00f3w z bezpiecze\u0144stwem. Do identyfikacji niezgodno\u015bci z ustalonymi zasadami u\u017cywane s\u0105 analizy statyczne.\n<li class=\"l\"> Przedstawiono inicjatyw\u0119 Hyperlaunch, maj\u0105c\u0105 na celu dostarczenie elastycznych narz\u0119dzi do konfiguracji uruchamiania statycznego zestawu <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/vps\/\"   title=\"maszyn wirtualnych\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2049\">maszyn wirtualnych<\/a> podczas rozruchu systemu. Inicjatywa zaproponowa\u0142a koncepcj\u0119 domB (boot domain, dom0less), kt\u00f3ra pozwala na uruchamianie maszyn wirtualnych na wczesnym etapie rozruchu serwera bez potrzeby wdra\u017cania \u015brodowiska dom0.\n<li class=\"l\"> W systemie ci\u0105g\u0142ej integracji zapewniono testowanie Xen w Alpine Linux i Ubuntu 20.04. Zaprzestano weryfikacji CentOS 6. W \u015brodowisku ci\u0105g\u0142ej integracji dla ARM dodano testy dom0\/domU oparte na QEMU.      <\/ul>\n<p>\u0179r\u00f3d\u0142o: <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 5.0.1.1 - 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