{"id":104976,"date":"2022-08-31T09:36:52","date_gmt":"2022-08-31T07:36:52","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-emulyatora-qemu-7-1"},"modified":"2022-08-31T09:36:52","modified_gmt":"2022-08-31T07:36:52","slug":"vypusk-emulyatora-qemu-7-1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/vypusk-emulyatora-qemu-7-1","title":{"rendered":"Udgivelsen af emulatoren QEMU 7.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Version 7.1 af QEMU-projektet 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 virtualiseringstilstand er koden, der udf\u00f8res i et isoleret milj\u00f8, t\u00e6t p\u00e5 hardwareydelse takket v\u00e6re direkte udf\u00f8relse af instruktioner p\u00e5 CPU'en og brug 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-udf\u00f8rlige filer bygget til x86-platformen p\u00e5 arkitekturer, der adskiller sig fra x86. Gennem \u00e5rene er der blevet tilf\u00f8jet st\u00f8tte til fuld emulering for 14 hardwarearkitekturer, og antallet af emulerede hardwareenheder har overskredet 400. Til version 7.1 er der blevet lavet over 2800 \u00e6ndringer fra 238 udviklere.     <\/p>\n<p>N\u00f8gleforbedringer tilf\u00f8jet i QEMU 7.1:   <\/p>\n<ul>\n<li class=\"l\"> En zero-copy-send-mulighed er blevet implementeret p\u00e5 Linux-platformen, der muligg\u00f8r overf\u00f8rsel af hukommelsessider under live-migrering uden mellembuffering.\n<li class=\"l\"> I QMP (QEMU Machine Protocol) er der tilf\u00f8jet en mulighed for at bruge kommandoen block-export-add til at eksportere NBD-billeder med information om sider i tilstand &#171;dirty&#187;. Der er ogs\u00e5 tilf\u00f8jet nye kommandoer &#8216;query-stats&#8217; og &#8216;query-stats-schema&#8217; til foresp\u00f8rgsel af statistikker fra forskellige QEMU-undersystemer.\n<li class=\"l\"> I agenten for g\u00e6stesystemer er underst\u00f8ttelsen af Solaris-platformen forbedret, og der er tilf\u00f8jet nye kommandoer &#8216;guest-get-diskstats&#8217; og &#8216;guest-get-cpustats&#8217; til at vise tilstanden af diskene og CPU'en. Kommandoen &#8216;guest-get-disks&#8217; er blevet opdateret til at vise informationer fra NVMe SMART, mens kommandoen &#8216;guest-get-fsinfo&#8217; nu ogs\u00e5 viser data om typen af NVMe-bus.\n<li class=\"l\"> En ny LoongArch-emulator er blevet tilf\u00f8jet med st\u00f8tte til den 64-bit version af LoongArch-instruktionss\u00e6ttet (LA64). Emulatoren underst\u00f8tter Loongson 3 5000-processorer og Loongson 7A1000-nordbroer.\n<li class=\"l\"> I ARM-emulatoren er der indf\u00f8rt nye typer af emulerede maskiner: Aspeed AST1030 SoC, Qualcomm samt AST2600 \/ AST1030 (fby35). Der er tilf\u00f8jet underst\u00f8ttelse af emulering af CPU Cortex-A76 og Neoverse-N1, samt CPU-udvidelserne SME (Scalable Matrix Extensions), RAS (Reliability, Availability, Serviceability) og kommandoer til at blokere l\u00e6kager fra den interne cache under spekulativ udf\u00f8relse af instruktioner p\u00e5 CPU'en. For maskiner &#8216;virt&#8217; er der implementeret emulering af GICv4-interruptcontrolleren.\n<li class=\"l\"> I x86-emulatoren er der blevet tilf\u00f8jet <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/vps\/abuzoustojchivye-vps\/\"   title=\"KVM\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4410\">KVM<\/a>  Tilf\u00f8jet st\u00f8tte til virtualisering af LBR (Last Branch Record) sporingsmekanismen.\n<li class=\"l\"> I HPPA-arkitekturens emulator er der foresl\u00e5et en ny firmware baseret p\u00e5 SeaBIOS v6, som underst\u00f8tter brugen af PS\/2-tastatur i boot-menuen. Emuleringen af den serielle port er forbedret. Yderligere konsolskrifttyper STI er tilf\u00f8jet.\n<li class=\"l\"> I MIPS-arkitekturens emulator for Nios2-platforme (-machine 10m50-ghrd) er der implementeret emulering af den vektorerede interrupt-controller (Vectored Interrupt Controller) og skygge-registers\u00e6ttet. Undtagelsesh\u00e5ndteringen er forbedret.\n<li class=\"l\"> I OpenRISC-arkitekturens emulator er der for maskinen &#8216;or1k-sim&#8217; tilf\u00f8jet mulighed for at bruge op til 4 UART-enheder 16550A.\n<li class=\"l\"> I RISC-V-arkitekturens emulator er der blevet tilf\u00f8jet st\u00f8tte til nye udvidelser af instruktionss\u00e6ttet (ISA), der er defineret i specifikationen 1.12.0, samt st\u00f8tte til Sdtrig-udvidelsen og forbedret underst\u00f8ttelse af vektor-instruktioner. Der er ogs\u00e5 udvidede debug-muligheder. For den emulerede maskine &#8216;virt&#8217; er der tilf\u00f8jet st\u00f8tte for TPM (Trusted Platform Module), og for maskinen &#8216;OpenTitan&#8217; \u2014 st\u00f8tte for Ibex SPI.\n<li class=\"l\"> I 390x-arkitekturens emulator er st\u00f8tte til VEF 2 (Vector-Enhancements Facility 2) sikret. I s390-ccw BIOS er der implementeret mulighed for boot fra drev med en sektorst\u00f8rrelse, der adskiller sig fra 512 byte.\n<li class=\"l\"> I Xtensa-arkitekturens emulator er der tilf\u00f8jet st\u00f8tte til lx106 kerner og objektkoder til test af cache.  <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57706\">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 7.1. \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-104976","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 7.1.\" \/>\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-7-1\" \/>\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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