{"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\/sv\/blog\/news\/vypusk-emulyatora-qemu-7-1","title":{"rendered":"Utgivningen av QEMU-emulatorn 7.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Version 7.1 av QEMU-projektet har presenterats. Som emulator g\u00f6r QEMU det m\u00f6jligt att k\u00f6ra program som \u00e4r byggda f\u00f6r en h\u00e5rdvaruplattform p\u00e5 ett system med helt annan arkitektur, till exempel att k\u00f6ra ett ARM-program p\u00e5 en x86-kompatibel PC. I virtualiseringsl\u00e4get \u00e4r prestandan f\u00f6r kodk\u00f6rning i en isolerad milj\u00f6 n\u00e4ra den i h\u00e5rdvarusystemet genom direkt exekvering av instruktioner p\u00e5 CPU och utnyttjande av hypervisor Xen eller KVM-modulen.       <\/p>\n<p>Projektet skapades ursprungligen av Fabrice Bellard f\u00f6r att m\u00f6jligg\u00f6ra k\u00f6rning av Linux-exekverbara filer som \u00e4r byggda f\u00f6r x86-plattformen p\u00e5 arkitekturer som skiljer sig fr\u00e5n x86. Under \u00e5ren av utveckling har support f\u00f6r fullst\u00e4ndig emulering lagts till 14 h\u00e5rdvaruarkitekturer, och antalet emulerade h\u00e5rdvaruenheter har \u00f6verstigit 400. F\u00f6r version 7.1 har mer \u00e4n 2800 f\u00f6r\u00e4ndringar fr\u00e5n 238 utvecklare inf\u00f6rts.     <\/p>\n<p>Nyckelf\u00f6rb\u00e4ttringar som lagts till i QEMU 7.1:   <\/p>\n<ul>\n<li class=\"l\"> P\u00e5 Linux-plattformen har alternativet zero-copy-send implementerats, vilket m\u00f6jligg\u00f6r \u00f6verf\u00f6ring av minnessidor under live-migrering utan mellanliggande buffring.\n<li class=\"l\"> I QMP (QEMU Machine Protocol) har funktionen block-export-add lagts till f\u00f6r att exportera NBD-bilder med sidinformation i \"dirty\"-status. Nya kommandon \u2018query-stats\u2019 och \u2018query-stats-schema\u2019 har ocks\u00e5 lagts till f\u00f6r att beg\u00e4ra statistik fr\u00e5n olika QEMU-undersystem.\n<li class=\"l\"> I agenten f\u00f6r g\u00e4stsystem har st\u00f6d f\u00f6r Solaris-plattformen f\u00f6rb\u00e4ttrats och nya kommandon \u2018guest-get-diskstats\u2019 och \u2018guest-get-cpustats\u2019 har lagts till f\u00f6r att visa disk- och CPU-status. Kommandot \u2018guest-get-disks\u2019 har utvidgats med information fr\u00e5n NVMe SMART, och i kommandot \u2018guest-get-fsinfo\u2019 har uppgifter om NVMe-busstyp lagts till.\n<li class=\"l\"> En ny LoongArch-emulator har lagts till med st\u00f6d f\u00f6r 64-bitarsversionen av LoongArch-instruktionsupps\u00e4ttningen (LA64). Emulatorn st\u00f6der Loongson 3 5000-processorer och Loongson 7A1000-nordbryggor.\n<li class=\"l\"> I ARM-emulatorn har nya typer av emulerade maskiner implementerats: Aspeed AST1030 SoC, Qualcomm och AST2600 \/ AST1030 (fby35). St\u00f6d f\u00f6r emulering av Cortex-A76 och Neoverse-N1 CPU:er har lagts till, samt processorutvidgningar SME (Scalable Matrix Extensions), RAS (Reliability, Availability, Serviceability) och kommandon f\u00f6r att blockera l\u00e4ckage fr\u00e5n interna cachar vid spekulation under instruktioner p\u00e5 CPU. F\u00f6r maskinerna \u2018virt\u2019 har emuleringen av GICv4 avbrottskontrollern implementerats.\n<li class=\"l\"> I x86-arkitekturens emulator f\u00f6r <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sv\/vps\/abuzoustojchivye-vps\/\"   title=\"KVM\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4410\">KVM<\/a>  st\u00f6d f\u00f6r LBR (Last Branch Record) virtualisering har lagts till.\n<li class=\"l\"> I HPPA-arkitekturens emulator har en ny firmware baserad p\u00e5 SeaBIOS v6 inf\u00f6rts, som st\u00f6djer anv\u00e4ndning av PS\/2-tangentbord i bootmenyn. Emuleringen av seriell port har f\u00f6rb\u00e4ttrats. Ytterligare konsoltypsnitt STI har lagts till.\n<li class=\"l\"> I MIPS-arkitekturens emulator f\u00f6r Nios2-kort (-machine 10m50-ghrd) har emuleringen av vektorerad avbrottskontroller (Vectored Interrupt Controller) och skuggset register implementerats. Undantagshanteringen har f\u00f6rb\u00e4ttrats.\n<li class=\"l\"> I OpenRISC-arkitekturen f\u00f6r maskinen \u2018or1k-sim\u2019 har funktionen att anv\u00e4nda upp till 4 UART-enheter 16550A lagts till.\n<li class=\"l\"> I RISC-V-arkitekturen har st\u00f6d f\u00f6r nya instruktionstill\u00e4gg (ISA) som definieras i specifikationen 1.12.0 lagts till, samt st\u00f6d f\u00f6r Sdtrig-till\u00e4gget och f\u00f6rb\u00e4ttrat st\u00f6d f\u00f6r vektorinstruktioner. M\u00f6jligheterna f\u00f6r debugging har utvidgats. F\u00f6r den emulerade maskinen \u2018virt\u2019 har st\u00f6d f\u00f6r TPM (Trusted Platform Module) lagts till, och f\u00f6r maskinen \u2018OpenTitan\u2019 \u2014 support f\u00f6r Ibex SPI.\n<li class=\"l\"> I 390x-arkitekturens emulator har st\u00f6d f\u00f6r VEF 2 (Vector-Enhancements Facility 2) lagts till. I s390-ccw BIOS har m\u00f6jligheten att starta fr\u00e5n diskar med sektorstorlekar som skiljer sig fr\u00e5n 512 byte implementerats.\n<li class=\"l\"> I Xtensa-arkitekturens emulator har st\u00f6d f\u00f6r lx106-k\u00e4rnor och objektkod f\u00f6r cachetestning lagts till.  <\/ul>\n<p>K\u00e4lla: <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 5.0.4 - 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 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\/sv\/blog\/news\/vypusk-emulyatora-qemu-7-1\" \/>\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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