{"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\/sk\/blog\/news\/vypusk-emulyatora-qemu-7-0","title":{"rendered":"Vydanie emul\u00e1tora QEMU 7.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Predstaven\u00e1 verzia projektu QEMU 7.0. Ako emul\u00e1tor QEMU umo\u017e\u0148uje spusti\u0165 program skompilovan\u00fd pre jednu hardv\u00e9rov\u00fa platformu na syst\u00e9me s \u00faplne inou architekt\u00farou, napr\u00edklad spusti\u0165 aplik\u00e1ciu pre ARM na po\u010d\u00edta\u010di kompatibilnom s x86. V re\u017eime virtualiz\u00e1cie dosahuje QEMU v\u00fdkon vykon\u00e1vania k\u00f3du v izolovanom prostred\u00ed bl\u00edzky hardv\u00e9rovej syst\u00e9me v\u010faka priamemu vykon\u00e1vaniu in\u0161trukci\u00ed na CPU a vyu\u017e\u00edvaniu hyperv\u00edzora Xen alebo modulu KVM.       <\/p>\n<p>P\u00f4vodne projekt vytvoril Fabrice Bellard s cie\u013eom poskytn\u00fa\u0165 mo\u017enos\u0165 sp\u00fa\u0161\u0165ania s\u00faborov .exe Linuxu skompilovan\u00fdch pre architekt\u00faru x86 na konzol\u00e1ch odli\u0161n\u00fdch od x86. Po\u010das rokov v\u00fdvoja bola pridan\u00e1 podpora plne emul\u00e1cie pre 14 hardv\u00e9rov\u00fdch architekt\u00far a po\u010det emulovan\u00fdch hardv\u00e9rov\u00fdch zariaden\u00ed presiahol 400. Pri pr\u00edprave verzie 7.0 bolo vykonan\u00fdch viac ako 2500 zmien od 225 v\u00fdvoj\u00e1rov.     <\/p>\n<p>K\u013e\u00fa\u010dov\u00e9 vylep\u0161enia pridan\u00e9 do QEMU 7.0:   <\/p>\n<ul>\n<li class=\"l\"> Do emul\u00e1tore architekt\u00fary x86 bola pridan\u00e1 podpora pre in\u0161truk\u010dn\u00fd s\u00fabor Intel AMX (Advanced Matrix Extensions), implementovan\u00fd v serverov\u00fdch procesoroch Intel Xeon Scalable. AMX pon\u00faka nov\u00e9 konfigurovate\u013en\u00e9 registry TMM &#171;TILE&#187; a in\u0161trukcie na manipul\u00e1ciu s d\u00e1tami v t\u00fdchto registroch, ako TMUL (Tile matrix MULtiply) na n\u00e1sobenie mat\u00edc.\n<li class=\"l\"> Bola poskytnut\u00e1 mo\u017enos\u0165 \u017eurn\u00e1lovania udalost\u00ed ACPI z hos\u0165ovsk\u00e9ho syst\u00e9mu cez rozhranie ACPI ERST.\n<li class=\"l\"> V module virtiofs, pou\u017e\u00edvanom na preposielanie \u010dasti s\u00faborov\u00e9ho syst\u00e9mu hostite\u013esk\u00e9ho prostredia do hos\u0165ovsk\u00e9ho syst\u00e9mu, bola vylep\u0161en\u00e1 podpora bezpe\u010dnostn\u00fdch \u0161t\u00edtkov (security label). Odstr\u00e1nen\u00e1 zranite\u013enos\u0165 CVE-2022-0358, ktor\u00e1 umo\u017e\u0148ovala zv\u00fd\u0161i\u0165 svoje privil\u00e9gi\u00e1 v syst\u00e9me vytvoren\u00edm spustite\u013en\u00fdch s\u00faborov v preposielan\u00fdch prostrediach cez virtiofs, patr\u00edcich inej skupine a vybaven\u00fdch pr\u00edznakom SGID.\n<li class=\"l\"> Zv\u00fd\u0161en\u00e1 pru\u017enos\u0165 z\u00e1lohovania akt\u00edvnych syst\u00e9mov\u00fdch obrazov (vytvor\u00ed sa sn\u00edmka, po ktorej sa na aktualiz\u00e1ciu stavu sn\u00edmky aplikuje filter copy-before-write (CBW), ktor\u00fd kop\u00edruje \u00fadaje z oblast\u00ed, do ktor\u00fdch vykon\u00e1va z\u00e1pis hos\u0165ovsk\u00fd syst\u00e9m). Pridan\u00e1 podpora obrazov v form\u00e1toch in\u00fdch ako qcow2. Poskytuje sa mo\u017enos\u0165 pr\u00edstupu k sn\u00edmke so z\u00e1lohou nie priamo, ale cez ovl\u00e1da\u010d blokov\u00e9ho zariadenia snapshot-access. Roz\u0161\u00edren\u00e9 mo\u017enosti spr\u00e1vy pr\u00e1ce filtra CBW, napr\u00edklad mo\u017eno vyl\u00fa\u010di\u0165 z spracovania ur\u010dit\u00e9 bitov\u00e9 mapy.\n<li class=\"l\"> V emul\u00e1tore ARM pre stroje &#8216;virt&#8217; bola pridan\u00e1 podpora pre virtio-mem-pci, definovanie topol\u00f3gie CPU pre hos\u0165uj\u00faci syst\u00e9m a zap\u00ednanie PAuth pri pou\u017eit\u00ed hyperv\u00edzora. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sk\/vps\/abuzoustojchivye-vps\/\"   title=\"KVM\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4407\">KVM<\/a> s akceler\u00e1torom hvf. V emul\u00e1tore plat &#8216;xlnx-versal-virt&#8217; bola pridan\u00e1 podpora pre PMC SLCR a emul\u00e1ciu ovl\u00e1da\u010da Flash pam\u00e4te OSPI. Pre emulovan\u00e9 stroje &#8216;xlnx-zynqmp&#8217; boli pridan\u00e9 nov\u00e9 modely riadenia CRF a APU. Bola pridan\u00e1 emul\u00e1cia roz\u0161\u00edren\u00ed FEAT_LVA2, FEAT_LVA (Large Virtual Address space) a FEAT_LPA (Large Physical Address space).\n<li class=\"l\"> V klasickom gener\u00e1tore k\u00f3du TCG (Tiny Code Generator) bola ukon\u010den\u00e1 podpora hostite\u013eov s CPU ARMv4 a ARMv5, v ktor\u00fdch ch\u00fdba podpora nevyrovnanej pr\u00edstupu k pam\u00e4ti a nedostato\u010dn\u00e9 RAM na vykon\u00e1vanie QEMU.\n<li class=\"l\"> Do emul\u00e1tora architekt\u00fary RISC-V bola pridan\u00e1 podpora pre hyperv\u00edzor KVM a implementovan\u00e9 vektorov\u00e9 roz\u0161\u00edrenia Vector 1.0, ako aj in\u0161trukcie Zve64f, Zve32f, Zfhmin, Zfh, zfinx, zdinx a zhinx{min}. Pre emulovan\u00e9 stroje &#8216;spike&#8217; bola pridan\u00e1 podpora pre na\u010d\u00edtanie bin\u00e1rnych s\u00faborov OpenSBI (RISC-V Supervisor Binary Interface). Pre emulovan\u00e9 stroje &#8216;virt&#8217; bola implementovan\u00e1 mo\u017enos\u0165 pou\u017ei\u0165 a\u017e 32 procesorov\u00fdch jadier a podpora AIA.\n<li class=\"l\"> V emul\u00e1tore architekt\u00fary HPPA je poskytnut\u00e1 mo\u017enos\u0165 vyu\u017eitia a\u017e 16 vCPU a vylep\u0161en\u00fd grafick\u00fd ovl\u00e1da\u010d pre pou\u017e\u00edvate\u013esk\u00e9 prostredia HP-UX VDE\/CDE. Pridan\u00e1 mo\u017enos\u0165 zmeny poradia na\u010d\u00edtania pre SCSI zariadenia.\n<li class=\"l\"> V emul\u00e1tore architekt\u00fary OpenRISC pre dosky &#8216;sim&#8217; bola pridan\u00e1 podpora pre pou\u017eitie a\u017e 4 jadier CPU, na\u010d\u00edtanie extern\u00e9ho obrazu initrd a automatick\u00fa gener\u00e1ciu device tree pre na\u010d\u00edtan\u00fd kernel.\n<li class=\"l\"> V emul\u00e1tore architekt\u00fary PowerPC pre emulovan\u00e9 stroje &#8216;pseries&#8217; bola implementovan\u00e1 mo\u017enos\u0165 spustenia hos\u0165uj\u00facich syst\u00e9mov pod spr\u00e1vou vnoren\u00e9ho hyperv\u00edzora KVM. Bola pridan\u00e1 podpora zariadenia spapr-nvdimm. Pre emulovan\u00e9 stroje &#8216;powernv&#8217; bola pridan\u00e1 podpora pre ovl\u00e1da\u010d preru\u0161enia XIVE2 a ovl\u00e1da\u010de PHB5, zlep\u0161en\u00e1 podpora XIVE a PHB 3\/4.\n<li class=\"l\"> Emul\u00e1tor architekt\u00fary s390x prid\u00e1va podporu pre roz\u0161\u00edrenia z15 (Miscellaneous-Instruction-Extensions Facility 3).    <\/ul>\n<p>Zdroj: <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\/sk\/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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