{"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\/da\/blog\/news\/vypusk-emulyatora-qemu-6-1","title":{"rendered":"Udgivelse af emulatoren QEMU 6.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>QEMU 6.1-udgaven er blevet pr\u00e6senteret. Som emulator g\u00f8r QEMU det muligt at k\u00f8re programmer, der er bygget til \u00e9n hardwareplatform, p\u00e5 et system med en helt anden arkitektur, for eksempel at k\u00f8re en ARM-applikation p\u00e5 en x86-kompatibel PC. I virtualiseringsmode er kodeudf\u00f8relsens ydeevne i et isoleret milj\u00f8 t\u00e6t p\u00e5 den fysiske systemydelse takket v\u00e6re direkte udf\u00f8relse af instruktioner p\u00e5 CPU'en og brugen af hypervisoren Xen eller KVM-modulet.       <\/p>\n<p>Projektet blev oprindeligt oprettet af Fabrice Bellard med det form\u00e5l at muligg\u00f8re k\u00f8rsel af Linux-executable filer bygget til x86-platforme p\u00e5 arkitekturer, der er forskellige fra x86. Gennem \u00e5rene er der blevet tilf\u00f8jet st\u00f8tte til fuld emulering for 14 hardwarearkitekturer, og antallet af emulerede hardwareenheder har oversteget 400. Til version 6.1 er der blevet foretaget mere end 3000 \u00e6ndringer fra 221 udviklere.     <\/p>\n<p>N\u00f8gleforbedringer tilf\u00f8jet i QEMU 6.1:   <\/p>\n<ul>\n<li class=\"l\"> I QMP (QEMU Machine Protocol) er kommandoen \u00abblockdev-reopen\u00bb blevet tilf\u00f8jet for at \u00e6ndre indstillingerne for en allerede oprettet blok-enhed.\n<li class=\"l\"> Som den prioriterede kryptodriver er gnutls blevet valgt, hvilket overg\u00e5r andre drivere i ydelse. Den tidligere standarddriver baseret p\u00e5 libgcrypt er blevet flyttet til v\u00e6rkt\u00f8jer, mens driveren baseret p\u00e5 nettle er blevet v\u00e6rende som en backupmulighed, der anvendes i mangel af GnuTLS og Libgcrypt.\n<li class=\"l\"> I I2C-emulatoren er der tilf\u00f8jet support til PMBus og I2C-multiplexere (pca9546, pca9548).\n<li class=\"l\"> Support til plugins til den klassiske TCG (Tiny Code Generator) er nu aktiveret som standard. Der er tilf\u00f8jet nye plugins execlog (k\u00f8rejournal) og cache modelling (simulering af L1-cacheadf\u00e6rd i CPU'en).\n<li class=\"l\"> I ARM-emulatoren er der tilf\u00f8jet support til boards baseret p\u00e5 Aspeed-chips (rainier-bmc, quanta-q7l1), npcm7xx (quanta-gbs-bmc) og Cortex-M3 (stm32vldiscovery). Der er tilf\u00f8jet support til hardwarekrypterings- og hashmotorer, der findes i Aspeed-chips. Desuden er der tilf\u00f8jet emulering af SVE2-instruktioner (herunder bfloat16), matricemultiplikationsoperationer og kommandoer til nulstilling af associerede overs\u00e6ttelsesbufferes (TLB).\n<li class=\"l\">  I emulatoren for PowerPC-arkitekturen til de emulerede maskiner \u00abpseries\u00bb er der tilf\u00f8jet support til at registrere fejl ved hot-plugging af enheder i nye g\u00e6ste-milj\u00f8er, gr\u00e6nsen for antal CPU'er er blevet forh\u00f8jet, og nogle instruktioner specifikke for POWER10-processorer er blevet emuleret. Support tilf\u00f8jet for kort baseret p\u00e5 Genesi\/bPlan Pegasos II chips (pegasos2).\n<li class=\"l\"> I RISC-V-emulatoren er der tilf\u00f8jet st\u00f8tte til OpenTitan-platformen og virtuel GPU virtio-vga (baseret p\u00e5 virgl).\n<li class=\"l\"> I s390-emulatoren er der tilf\u00f8jet st\u00f8tte til 16. generations CPU'er og vektorextensioner.\n<li class=\"l\"> I x86-emulatoren er der tilf\u00f8jet st\u00f8tte til nye modeller af Intel CPU'er (Skylake-Client-v4, Skylake-Server-v5, Cascadelake-Server-v5, Cooperlake-v2, Icelake-Client-v3, Icelake-Server-v5, Denverton-v3, Snowridge-v3, Dhyana-v2), som implementerer instruktionen XSAVES. I chipset-emulatoren Q35 (ICH9) er der tilf\u00f8jet st\u00f8tte til hot-plugging af PCI-enheder. Emuleringen af virtualiseringsudvidelser, der tilbydes af AMD-processorer, er forbedret. Der er tilf\u00f8jet en bus-lock-ratelimit indstilling for at begr\u00e6nse intensiteten af busl\u00e5sen fra g\u00e6stesystemet.\n<li class=\"l\"> Der er tilf\u00f8jet st\u00f8tte til at bruge NVMM som accelerator for hypervisoren, som udvikles af NetBSD-projektet.\n<li class=\"l\"> I GUI'en aktiveres underst\u00f8ttelse af adgangskodeautentificering ved brug af VNC-protokollen nu kun, n\u00e5r den er bygget med en ekstern kryptografisk backend (gnutls, libgcrypt eller nettle).      <\/ul>\n<p>Kilde: <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 5.0.3 - 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\/da\/blog\/news\/vypusk-emulyatora-qemu-6-1\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" 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