{"id":101087,"date":"2021-08-25T10:22:49","date_gmt":"2021-08-25T08:22:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-emulyatora-qemu-6-1"},"modified":"2021-08-25T10:22:49","modified_gmt":"2021-08-25T08:22:49","slug":"vypusk-emulyatora-qemu-6-1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/vypusk-emulyatora-qemu-6-1","title":{"rendered":"Rilascio dell'emulatore QEMU 6.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stato presentato il rilascio del progetto QEMU 6.1. Come emulatore, QEMU consente di eseguire un programma compilato per una piattaforma hardware su un sistema con un'architettura completamente diversa, ad esempio, eseguire un'applicazione per ARM su un PC compatibile con x86. In modalit\u00e0 di virtualizzazione, le prestazioni di esecuzione del codice in un ambiente isolato sono vicine a quelle di un sistema hardware grazie all'esecuzione diretta delle istruzioni sulla CPU e all'uso dell'ipercontrollore Xen o del modulo KVM.       <\/p>\n<p>Il progetto \u00e8 stato inizialmente creato da Fabrice Bellard con l'obiettivo di fornire la possibilit\u00e0 di eseguire file eseguibili Linux compilati per piattaforme x86 su architetture diverse da x86. Negli anni di sviluppo \u00e8 stato aggiunto il supporto per l'emulazione completa di 14 architetture hardware, e il numero dei dispositivi hardware emulati ha superato 400. Nella preparazione della versione 6.1 sono state apportate oltre 3000 modifiche da 221 sviluppatori.     <\/p>\n<p>Miglioramenti chiave aggiunti in QEMU 6.1:   <\/p>\n<ul>\n<li class=\"l\"> \u0412 QMP (QEMU Machine Protocol) \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043a\u043e\u043c\u0430\u043d\u0434\u0430 &#171;blockdev-reopen&#187; \u0434\u043b\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043a \u0443\u0436\u0435 \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u043e\u0433\u043e \u0431\u043b\u043e\u0447\u043d\u043e\u0433\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430.\n<li class=\"l\"> Come driver crittografico prioritario \u00e8 stato utilizzato gnutls, che supera gli altri driver in termini di prestazioni. Il driver basato su libgcrypt, precedentemente proposto come predefinito, \u00e8 stato spostato nel gruppo delle opzioni, mentre il driver basato su nettle \u00e8 stato mantenuto come opzione di riserva, utilizzata in assenza di GnuTLS e Libgcrypt.\n<li class=\"l\"> Nell'emulatore I2C \u00e8 stato aggiunto il supporto per PMBus e multiplexers I2C (pca9546, pca9548).\n<li class=\"l\"> Di default \u00e8 stato abilitato il supporto per i plugin al generatore di codice classico TCG (Tiny Code Generator). Sono stati aggiunti nuovi plugin execlog (registro di esecuzione) e cache modelling (simulazione del comportamento della cache L1 nella CPU).\n<li class=\"l\"> Nell'emulatore ARM \u00e8 stato aggiunto il supporto per schede basate su chip Aspeed (rainier-bmc, quanta-q7l1), npcm7xx (quanta-gbs-bmc) e Cortex-M3 (stm32vldiscovery). \u00c8 stato aggiunto il supporto per motori hardware di crittografia e hashing forniti nei chip Aspeed. \u00c8 stato aggiunto il supporto per l'emulazione delle istruzioni SVE2 (compreso bfloat16), operatori per la moltiplicazione di matrici e comandi di reset dei buffer di traduzione associativa (TLB).\n<li class=\"l\">  \u0412 \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440\u0435 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b PowerPC \u0434\u043b\u044f \u044d\u043c\u0443\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u043c\u0430\u0448\u0438\u043d &#171;pseries&#187; \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u0441\u0431\u043e\u0435\u0432 \u043f\u0440\u0438 \u0433\u043e\u0440\u044f\u0447\u0435\u043c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u0432 \u043d\u043e\u0432\u044b\u0445 \u0433\u043e\u0441\u0442\u0435\u0432\u044b\u0445 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f\u0445, \u043f\u043e\u0432\u044b\u0448\u0435\u043d \u043b\u0438\u043c\u0438\u0442 \u043d\u0430 \u0447\u0438\u0441\u043b\u043e CPU \u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u044d\u043c\u0443\u043b\u044f\u0446\u0438\u044f \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439, \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u044b\u0445 \u0434\u043b\u044f \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 POWER10. \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u043b\u0430\u0442 \u043d\u0430 \u0431\u0430\u0437\u0435 \u0447\u0438\u043f\u043e\u0432 Genesi\/bPlan Pegasos II (pegasos2).\n<li class=\"l\"> Nell'emulatore RISC-V \u00e8 stata implementata la supporto per la piattaforma OpenTitan e la GPU virtuale virtio-vga (basata su virgl).\n<li class=\"l\"> Nell'emulatore s390 \u00e8 stata aggiunta la supporto per la CPU di 16a generazione e per le estensioni vettoriali.\n<li class=\"l\"> Nell'emulatore x86 \u00e8 stata aggiunta la supporto per i nuovi modelli di CPU Intel (Skylake-Client-v4, Skylake-Server-v5, Cascadelake-Server-v5, Cooperlake-v2, Icelake-Client-v3, Icelake-Server-v5, Denverton-v3, Snowridge-v3, Dhyana-v2), nei quali \u00e8 stata implementata l'istruzione XSAVES. Nell'emulatore del chipset Q35 (ICH9) \u00e8 stata implementata la supporto per il collegamento a caldo dei dispositivi PCI. \u00c8 stata migliorata l'emulazione delle estensioni di virtualizzazione fornite nei processori AMD. \u00c8 stata aggiunta l'opzione bus-lock-ratelimit per limitare l'intensit\u00e0 del blocco della bus da parte del sistema guest.\n<li class=\"l\"> \u00c8 stata aggiunta la supporto per l'uso come acceleratore per l'iperlibero NVMM, sviluppato dal progetto NetBSD.\n<li class=\"l\"> Nell'interfaccia grafica, il supporto dell'autenticazione tramite password quando si utilizza il protocollo VNC viene attivato solo quando viene effettuata una compilazione con un backend crittografico esterno (gnutls, libgcrypt o nettle).      <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55679\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 QEMU 6.1. \u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440\u0430 QEMU \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u0442\u044c \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0443, \u0441\u043e\u0431\u0440\u0430\u043d\u043d\u0443\u044e \u0434\u043b\u044f \u043e\u0434\u043d\u043e\u0439 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b, \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0441 \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u043d\u043e \u0438\u043d\u043e\u0439 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u043e\u0439, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u0434\u043b\u044f ARM \u043d\u0430 x86-\u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u043c \u041f\u041a. \u0412 \u0440\u0435\u0436\u0438\u043c\u0435 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0432 QEMU \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u0432 \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u0438 \u0431\u043b\u0438\u0437\u043a\u0430 \u043a \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0437\u0430 \u0441\u0447\u0451\u0442 \u043f\u0440\u044f\u043c\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439 \u043d\u0430 CPU \u0438 \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\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-101087","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 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 QEMU 6.1.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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