{"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\/sv\/blog\/news\/vypusk-emulyatora-qemu-6-1","title":{"rendered":"Utgivning av QEMU 6.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Lanseringen av QEMU 6.1. Som emulator m\u00f6jligg\u00f6r QEMU att k\u00f6ra program som \u00e4r byggda f\u00f6r en h\u00e5rdvaruplattform p\u00e5 ett system med en helt annan arkitektur, exempelvis att k\u00f6ra en applikation f\u00f6r ARM p\u00e5 en x86-kompatibel dator. I virtualiseringsl\u00e4ge erbjuder QEMU prestanda n\u00e4ra den fysiska h\u00e5rdvaran genom direkt exekvering av instruktioner p\u00e5 CPU:n och anv\u00e4ndning av hypervisorn Xen eller KVM-modulen.       <\/p>\n<p>Projektet skapades ursprungligen av Fabrice Bellard f\u00f6r att m\u00f6jligg\u00f6ra k\u00f6rning av executabler f\u00f6r x86-plattformen p\u00e5 arkitekturer som skiljer sig fr\u00e5n x86. Under \u00e5ren har fullst\u00e4ndig emulatorst\u00f6d lagts till f\u00f6r 14 h\u00e5rdvaruarkitekturer, och antalet emulerade h\u00e5rdutrustningar \u00f6verstiger 400. F\u00f6r version 6.1 har mer \u00e4n 3000 f\u00f6r\u00e4ndringar inf\u00f6rts av 221 utvecklare.     <\/p>\n<p>Nyckelf\u00f6rb\u00e4ttringar som lagts till i QEMU 6.1:   <\/p>\n<ul>\n<li class=\"l\"> I QMP (QEMU Machine Protocol) har kommandot \u00abblockdev-reopen\u00bb lagts till f\u00f6r att \u00e4ndra inst\u00e4llningar f\u00f6r redan skapade blockenheter.\n<li class=\"l\"> Gnutls har valts som prioriterad kryptotreiber, som \u00f6vertr\u00e4ffar andra drivrutiner i prestanda. Den tidigare standarddrivrutinen baserad p\u00e5 libgcrypt har flyttats ned till alternativ, medan drivrutinen baserad p\u00e5 nettle l\u00e4mnas som reserv, som anv\u00e4nds om GnuTLS och Libgcrypt inte \u00e4r tillg\u00e4ngliga.\n<li class=\"l\"> I I2C-emulatorn har st\u00f6d f\u00f6r PMBus och I2C-multiplexrar (pca9546, pca9548) lagts till.\n<li class=\"l\"> Som standard \u00e4r st\u00f6d f\u00f6r plugins till den klassiska TCG (Tiny Code Generator) aktiverat. Nya plugins f\u00f6r execlog (exekveringsjournal) och cache modelling (simulering av L1-cachebeteende i CPU) har lagts till.\n<li class=\"l\"> I ARM-emulatorn har st\u00f6d f\u00f6r kort med Aspeed-chip (rainier-bmc, quanta-q7l1), npcm7xx (quanta-gbs-bmc) och Cortex-M3 (stm32vldiscovery) lagts till. St\u00f6d f\u00f6r h\u00e5rdvaruacceleratorer f\u00f6r kryptering och hashing som tillhandah\u00e5lls i Aspeed-chip har lagts till. St\u00f6d f\u00f6r emulering av SVE2-instruktioner (inklusive bfloat16), matris-multiplikationsoperatorer och kommandon f\u00f6r att \u00e5terst\u00e4lla associativ \u00f6vers\u00e4ttningspuffrar (TLB) har lagts till.\n<li class=\"l\">  I emulatorn f\u00f6r PowerPC-arkitekturen har st\u00f6d f\u00f6r att uppt\u00e4cka fel vid hot-pluggande av enheter i nya g\u00e4stmilj\u00f6er lagts till f\u00f6r emulerade maskiner \u00abpseries\u00bb, begr\u00e4nsningen f\u00f6r antal CPU:er har \u00f6kats och emuleringen av vissa instruktioner specifika f\u00f6r POWER10-processorer har realiserats. St\u00f6d f\u00f6r kort som \u00e4r baserade p\u00e5 Genesi\/bPlan Pegasos II (pegasos2) har lagts till.\n<li class=\"l\"> I RISC-V-emulatorn har st\u00f6det f\u00f6r plattformen OpenTitan och den virtuella GPU:n virtio-vga (baserat p\u00e5 virgl) implementerats.\n<li class=\"l\"> I s390-emulatorn har st\u00f6det f\u00f6r 16:e generationens CPU och vektorutvidgningar lagts till.\n<li class=\"l\"> I x86-emulatorn har st\u00f6det f\u00f6r nya Intel CPU-modeller (Skylake-Client-v4, Skylake-Server-v5, Cascadelake-Server-v5, Cooperlake-v2, Icelake-Client-v3, Icelake-Server-v5, Denverton-v3, Snowridge-v3, Dhyana-v2) lagts till, d\u00e4r instruktionen XSAVES implementeras. I Q35 chipset-emulatorn (ICH9) har st\u00f6det f\u00f6r hot-swap av PCI-enheter implementerats. Emuleringen av virtualiseringsf\u00f6rl\u00e4ngningar som tillhandah\u00e5lls av AMD-processorer har f\u00f6rb\u00e4ttrats. En bus-lock-ratelimit-alternativ har lagts till f\u00f6r att begr\u00e4nsa intensiteten av bussp\u00e4rrar av g\u00e4stsystemet.\n<li class=\"l\"> St\u00f6d f\u00f6r anv\u00e4ndning som accelerator f\u00f6r hypervisor NVMM, som utvecklas av projektet NetBSD, har lagts till.\n<li class=\"l\"> I GUI st\u00f6ds autentisering med l\u00f6senord n\u00e4r protokollet VNC anv\u00e4nds nu endast vid kompilering med extern kryptografisk backend (gnutls, libgcrypt eller nettle).      <\/ul>\n<p>K\u00e4lla: <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 5.0.4 - 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 Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/sv\/blog\/news\/vypusk-emulyatora-qemu-6-1\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.4\" \/>\n\t\t<meta property=\"og:locale\" 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