{"id":103823,"date":"2022-04-20T09:36:41","date_gmt":"2022-04-20T07:36:41","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-emulyatora-qemu-7-0"},"modified":"2022-04-20T09:36:41","modified_gmt":"2022-04-20T07:36:41","slug":"vypusk-emulyatora-qemu-7-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/vypusk-emulyatora-qemu-7-0","title":{"rendered":"Izlazak emulatora QEMU 7.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Predstavljen je izlazak projekta QEMU 7.0. Kao emulator, QEMU omogu\u0107uje pokretanje programa sastavljenih za jednu hardversku platformu na sistemu s potpuno razlikovnom arhitekturom, na primjer, izvr\u0161avanje aplikacije za ARM na x86-kompatibilnom PC-u. U virtualizacijskom re\u017eimu u QEMU, performanse izvr\u0161avanja koda u izoliranom okru\u017eenju su bliske hardverskom sustavu zbog direktnog izvr\u0161enja instrukcija na CPU-u i anga\u017eiranja hipervizora Xen ili KVM modula.       <\/p>\n<p>Projekt je prvotno osnovao Fabrice Bellard s ciljem omogu\u0107avanja pokretanja izvr\u0161nih datoteka Linuxa sastavljenih za x86 platformu na arhitekturama razli\u010ditim od x86. Tijekom godina razvoja dodana je podr\u0161ka za potpunu emulaciju za 14 hardverskih arhitektura, a broj emuliranih hardverskih ure\u0111aja prema\u0161io je 400. U pripremi verzije 7.0 izvr\u0161eno je vi\u0161e od 2500 promjena od 225 programera.     <\/p>\n<p>Klju\u010dna pobolj\u0161anja dodana u QEMU 7.0:   <\/p>\n<ul>\n<li class=\"l\"> U emulatoru arhitekture x86 dodana je podr\u0161ka za set instrukcija Intel AMX (Advanced Matrix Extensions), implementirane u servernim procesorima Intel Xeon Scalable. AMX nudi nove prilagodljive registre TMM \u201eTILE\u201c i instrukcije za manipulaciju podacima unutar tih registara, poput TMUL (Tile matrix MULtiply) za mno\u017eenje matrica.\n<li class=\"l\"> Omogu\u0107ena je mogu\u0107nost evidentiranja ACPI doga\u0111aja iz gostuju\u0107eg sustava preko ACPI ERST su\u010delja.\n<li class=\"l\"> U virtiofs modulu, koji se koristi za proslje\u0111ivanje dijela datote\u010dnog sustava doma\u0107inskog okru\u017eenja u gostuju\u0107i sustav, pobolj\u0161ana je podr\u0161ka za sigurnosne oznake (security label). Ispravljena je ranjivost CVE-2022-0358, koja je omogu\u0107avala podizanje privilegija u sustavu kroz stvaranje izvr\u0161nih datoteka u direktorijima proslije\u0111enim preko virtiofs, koji pripadaju drugoj grupi i imaju SGID oznaku.\n<li class=\"l\"> Pove\u0107ana fleksibilnost rezervnog kopiranja aktivnih sistemskih slika u radu (napravljen je snimak, a zatim je za a\u017euriranje stanja snimka primenjen copy-before-write (CBW) filtar koji kopira podatke iz oblasti u koje gostuju\u0107i sistem vr\u0161i upis). Dodana je podr\u0161ka za slike u formatima razli\u010ditim od qcow2. Omogu\u0107eno je pristupanje snimku sa rezervnom kopijom ne direktno, ve\u0107 putem blok ure\u0111aja snapshot-access. Pro\u0161irene su mogu\u0107nosti upravljanja radom CBW filtra, na primer, mo\u017ee se isklju\u010diti obrada odre\u0111enih bitmapa.\n<li class=\"l\"> U emulatoru ARM za ma\u0161ine \u2018virt\u2019 dodana je podr\u0161ka za virtio-mem-pci, definiranje CPU topologije za gostuju\u0107i sustav i uklju\u010divanje PAuth prilikom kori\u0161tenja hipervizora s ubrza\u010dem hvf. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hr\/vps\/abuzoustojchivye-vps\/\"   title=\"KVM\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4407\">KVM<\/a> U emulatoru plo\u010da \u2018xlnx-versal-virt\u2019 dodana je podr\u0161ka za PMC SLCR i emulaciju kontrolera Flash memorije OSPI. Za emulirane ma\u0161ine \u2018xlnx-zynqmp\u2019 dodani su novi modeli upravljanja CRF i APU. Dodana je emulacija ekstenzija FEAT_LVA2, FEAT_LVA (Veliki virtualni adresni prostor) i FEAT_LPA (Veliki fizi\u010dki adresni prostor).\n<li class=\"l\"> U klasi\u010dnom TCG (Tiny Code Generator) prestala je podr\u0161ka za doma\u0107ine sa ARMv4 i ARMv5 CPU, koji nemaju podr\u0161ku za neporavnati pristup memoriji i nedovoljno RAM-a za izvr\u0161avanje QEMU-a.\n<li class=\"l\"> U emulatoru arhitekture RISC-V dodana je podr\u0161ka za hipervizor KVM i implementirane su vektorske ekstenzije Vector 1.0, kao i instrukcije Zve64f, Zve32f, Zfhmin, Zfh, zfinx, zdinx i zhinx{min}. Za emulirane ma\u0161ine \u2018spike\u2019 dodana je podr\u0161ka za u\u010ditavanje binarnih datoteka OpenSBI (RISC-V Supervisor Binary Interface). Za emulirane ma\u0161ine \u2018virt\u2019 ostvarena je mogu\u0107nost kori\u0161tenja do 32 procesorske jezgre i podr\u0161ka za AIA.\n<li class=\"l\"> U HPPA arhitektonskom emulatoru omogu\u0107eno je kori\u0161\u0107enje do 16 vCPU i unapre\u0111en je grafi\u010dki drajver za korisni\u010dka okru\u017eenja HP-UX VDE\/CDE. Dodana je mogu\u0107nost promene reda u\u010ditavanja za SCSI ure\u0111aje.\n<li class=\"l\"> U emulatoru arhitekture OpenRISC za plo\u010de \u2018sim\u2019 dodana je podr\u0161ka za kori\u0161tenje do 4 jezgre CPU, u\u010ditavanje vanjskog izraza initrd i automatsku generaciju device tree za u\u010ditano jezgro.\n<li class=\"l\"> U emulatoru arhitekture PowerPC za emulirane ma\u0161ine \u2018pseries\u2019 ostvarena je mogu\u0107nost pokretanja gostuju\u0107ih sustava pod upravom ugnije\u017edenog hipervizora KVM. Dodana je podr\u0161ka za ure\u0111aj spapr-nvdimm. Za emulirane ma\u0161ine \u2018powernv\u2019 dodana je podr\u0161ka za kontroler prekida XIVE2 i kontrolere PHB5, pobolj\u0161ana podr\u0161ka za XIVE i PHB 3\/4.\n<li class=\"l\"> U emulator arhitekture s390x dodana je podr\u0161ka za pro\u0161irenja z15 (Facility 3 za razne instrukcije).    <\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57047\">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 7.0. \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-103823","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 7.0.\" \/>\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\/hr\/blog\/news\/vypusk-emulyatora-qemu-7-0\" \/>\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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