{"id":101721,"date":"2021-10-22T04:22:36","date_gmt":"2021-10-22T02:22:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-gipervizora-bareflank-3-0"},"modified":"2021-10-22T04:22:36","modified_gmt":"2021-10-22T02:22:36","slug":"vypusk-gipervizora-bareflank-3-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/vypusk-gipervizora-bareflank-3-0","title":{"rendered":"Lansarea hipervizorului Bareflank 3.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A avut loc lansarea hipervizorului Bareflank 3.0, care ofer\u0103 instrumente pentru dezvoltarea rapid\u0103 a hipervizoarelor specializate. Bareflank este scris \u00een C++, sus\u021bine C++ STL. Arhitectura modular\u0103 a Bareflank permite extinderea u\u0219oar\u0103 a func\u021bionalit\u0103\u021bilor existente ale hipervizorului \u0219i crearea de variante proprii de hipervizoare, at\u00e2t pe hardware (ca Xen), c\u00e2t \u0219i care ruleaz\u0103 \u00een mediul software existent (ca VirtualBox). Exist\u0103 posibilitatea de a rula sistemul de operare al mediu-ului gazd\u0103 \u00eentr-o ma\u0219in\u0103 virtual\u0103 separat\u0103. Codul proiectului este distribuit sub licen\u021ba LGPL 2.1.      <\/p>\n<p>Bareflank suport\u0103 Linux, Windows \u0219i UEFI pe CPU Intel \u0219i AMD pe 64 de bi\u021bi. Pentru separarea hardware a resurselor <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/vps\/\"   title=\"ma\u0219ini virtuale\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2073\">ma\u0219ini virtuale<\/a> se folose\u0219te tehnologia Intel VT-x. \u00cen viitor, este planificat\u0103 suportul pentru macOS \u0219i sistemele BSD, precum \u0219i posibilitatea de a opera pe platforma ARM64. Proiectul dezvolt\u0103, de asemenea, un driver propriu pentru \u00eenc\u0103rcarea VMM (Virtual Machine Manager), un \u00eenc\u0103rc\u0103tor ELF pentru \u00eenc\u0103rcarea modulelor VVM, aplica\u021bia bfm pentru gestionarea hipervizorului din spa\u021biul utilizatorului. Se ofer\u0103 instrumente pentru scrierea extensiilor utiliz\u00e2nd elemente definite \u00een specifica\u021biile C++11\/14, o bibliotec\u0103 de desf\u0103\u0219urare a stivei de excep\u021bii (unwind), precum \u0219i o bibliotec\u0103 runtime proprie pentru a sus\u021bine utilizarea constructorilor\/destructoarelor \u0219i \u00eenregistrarea handler-ilor pentru excep\u021bii.    <\/p>\n<p>Pe baza Bareflank se dezvolt\u0103 un sistem de virtualizare numit Boxy, care suport\u0103 rularea sistemelor invita\u021bi \u0219i permite utilizarea ma\u0219inilor virtuale u\u0219oare cu Linux \u0219i Unikernel pentru rularea serviciilor sau aplica\u021biilor specializate. Sub form\u0103 de servicii izolate, pot fi rulate at\u00e2t servicii web obi\u0219nuite, c\u00e2t \u0219i aplica\u021bii care au cerin\u021be speciale de fiabilitate \u0219i securitate, izolate de influen\u021bele mediului gazd\u0103 (mediul gazd\u0103 este izolat \u00eentr-o ma\u0219in\u0103 virtual\u0103 separat\u0103). Bareflank st\u0103, de asemenea, la baza hipervizorului MicroV, destinat rul\u0103rii unor ma\u0219ini virtuale minimaliste (<a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/vps\/abuzoustojchivye-vps\/\"   title=\"ma\u0219in\u0103 virtual\u0103\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4199\">ma\u0219in\u0103 virtual\u0103<\/a> unui singur aplica\u021bii), implement\u00e2nd API KVM \u0219i fiind potrivit pentru crearea sistemelor critice.    <\/p>\n<p>Principalele nout\u0103\u021bi ale Bareflank 3.0:  <\/p>\n<ul>\n<li class=\"l\"> Tranzi\u021bia la conceptul de microkernel. Anterior, hipervizorul avea o arhitectur\u0103 monolitic\u0103, care necesita utilizarea unei API speciale pentru \u00eenregistrarea apelurilor de tip callback pentru a extinde func\u021bionalitatea, ceea ce \u00eengreuna dezvoltarea extensiilor din cauza leg\u0103turii cu limbajul C++ \u0219i structura intern\u0103. Noua arhitectur\u0103 bazat\u0103 pe microkernel implic\u0103 \u00eemp\u0103r\u021birea hipervizorului \u00een componente de baz\u0103, care func\u021bioneaz\u0103 \u00een modul zero de protec\u021bie, \u0219i extensii care ruleaz\u0103 \u00een al treilea nivel (spa\u021biul utilizatorului). Ambele p\u0103r\u021bi func\u021bioneaz\u0103 \u00een modul root VMX, iar tot restul, inclusiv mediu gazd\u0103, \u00een modul non-root VMX. Extensiile din spa\u021biul utilizator implementeaz\u0103 func\u021bionalitatea managerului de ma\u0219ini virtuale (VMM) \u0219i interac\u021bioneaz\u0103 cu nucleul hipervizorului prin apeluri de sistem, pentru care se asigur\u0103 compatibilitate retroactiv\u0103. Extensiile pot fi create \u00een orice limbaj de programare, inclusiv suport pentru Rust.\n<li class=\"l\"> S-a realizat tranzi\u021bia la utilizarea propriului library BSL, cu suport pentru Rust \u0219i C++, care a \u00eenlocuit bibliotecile externe libc++ \u0219i newlib. Renun\u021barea la dependen\u021bele externe a permis implementarea \u00een Bareflank a suportului nativ pentru compilarea pe Windows pentru a simplifica dezvoltarea pe aceast\u0103 platform\u0103.\n<li class=\"l\"> A fost ad\u0103ugat suport pentru procesoarele AMD. Mai mult, dezvoltarea Bareflank se desf\u0103\u0219oar\u0103 acum pe un sistem cu CPU AMD \u0219i este ulterior portat\u0103 pentru CPU Intel.\n<li class=\"l\"> \u00cen bootloader a fost ad\u0103ugat suport pentru arhitectura ARMv8, adaptarea hipervizorului pentru aceasta urm\u00e2nd a fi finalizat\u0103 \u00eentr-unul dintre urm\u0103toarele versiuni.\n<li class=\"l\"> S-a asigurat respectarea cerin\u021belor pentru dezvoltarea sistemelor critice, formulat\u0103 de organiza\u021biile AUTOSAR \u0219i MISRA.   <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56012\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Bareflank 3.0, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0434\u043b\u044f \u0431\u044b\u0441\u0442\u0440\u043e\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u043e\u0432. Bareflank \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 C++, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 C++ STL. \u041c\u043e\u0434\u0443\u043b\u044c\u043d\u0430\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0430 Bareflank \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0442 \u043b\u0435\u0433\u043a\u043e \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u0442\u044c \u0438\u043c\u0435\u044e\u0449\u0438\u0435\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 \u0438 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u044b \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u043e\u0432, \u043a\u0430\u043a \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0445 \u043f\u043e\u0432\u0435\u0440\u0445 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f (\u043a\u0430\u043a Xen), \u0442\u0430\u043a \u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u044b\u0445 \u0432 \u0438\u043c\u0435\u044e\u0449\u0435\u043c\u0441\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u043c \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u0438 (\u043a\u0430\u043a VirtualBox). \u0418\u043c\u0435\u0435\u0442\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0445\u043e\u0441\u0442-\u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f [&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-101721","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Bareflank 3.0, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0434\u043b\u044f \u0431\u044b\u0441\u0442\u0440\u043e\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u043e\u0432. 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