{"id":79760,"date":"2020-04-30T07:42:17","date_gmt":"2020-04-30T05:42:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-emulyatora-qemu-5-0"},"modified":"2020-04-30T07:42:17","modified_gmt":"2020-04-30T05:42:17","slug":"vypusk-emulyatora-qemu-5-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-emulyatora-qemu-5-0","title":{"rendered":"Vyd\u00e1n\u00ed emul\u00e1toru QEMU 5.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/lists.nongnu.org\/archive\/html\/qemu-devel\/2020-04\/msg04942.html\">P\u0159edstaven\u00ed<\/a><\/noindex> uvoln\u011bn\u00ed projektu <noindex><a rel=\"nofollow\" href=\"http:\/\/wiki.qemu.org\/Download\">QEMU 5.0<\/a><\/noindex>. Jako emul\u00e1tor QEMU umo\u017e\u0148uje spustit program sestaven\u00fd pro jednu hardwarovou platformu na syst\u00e9mu s \u00fapln\u011b jinou architekturou, nap\u0159\u00edklad spustit aplikaci pro ARM na po\u010d\u00edta\u010di kompatibiln\u00edm s x86. V re\u017eimu virtualizace m\u00e1 QEMU v\u00fdkon k\u00f3du b\u011b\u017e\u00edc\u00edho v izolovan\u00e9m prost\u0159ed\u00ed bl\u00edzk\u00fd nativn\u00edmu syst\u00e9mu d\u00edky p\u0159\u00edm\u00e9mu vykon\u00e1v\u00e1n\u00ed instrukc\u00ed na CPU a zapojen\u00ed hypervisoru Xen nebo modulu KVM. <\/p>\n<p>Projekt byl p\u016fvodn\u011b vytvo\u0159en Fabrice Bellard s c\u00edlem umo\u017enit spou\u0161t\u011bn\u00ed sestaven\u00fdch soubor\u016f Linux pro platformu x86 na architektur\u00e1ch odli\u0161n\u00fdch od x86. B\u011bhem let v\u00fdvoje byla p\u0159id\u00e1na podpora pln\u00e9 emulace pro 14 hardwarov\u00fdch architektur a po\u010det emulovan\u00fdch hardwarov\u00fdch za\u0159\u00edzen\u00ed p\u0159es\u00e1hl 400. P\u0159i p\u0159\u00edprav\u011b verze 5.0 bylo provedeno v\u00edce ne\u017e 2800 zm\u011bn od 232 v\u00fdvoj\u00e1\u0159\u016f. <\/p>\n<p>Kl\u00ed\u010dov\u00e9 <noindex><a rel=\"nofollow\" href=\"http:\/\/wiki.qemu.org\/ChangeLog\/5.0\">vylep\u0161en\u00ed<\/a><\/noindex>, p\u0159idan\u00e9 do QEMU 5.0: <\/p>\n<ul>\n<li class=\"l\"> Mo\u017enost p\u0159esm\u011brov\u00e1n\u00ed \u010d\u00e1sti souborov\u00e9ho syst\u00e9mu hostitelsk\u00e9ho prost\u0159ed\u00ed do hostitelsk\u00e9ho syst\u00e9mu pomoc\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/virtio-fs.gitlab.io\/\">virtiofsd<\/a><\/noindex>. Hostitelsk\u00fd syst\u00e9m m\u016f\u017ee p\u0159ipojit adres\u00e1\u0159 ozna\u010den\u00fd pro export na stran\u011b hostitelsk\u00e9ho syst\u00e9mu, co\u017e v\u00fdrazn\u011b usnad\u0148uje organizaci sd\u00edlen\u00e9ho p\u0159\u00edstupu k adres\u00e1\u0159\u016fm ve virtualiza\u010dn\u00edch syst\u00e9mech. Na rozd\u00edl od pou\u017e\u00edv\u00e1n\u00ed s\u00ed\u0165ov\u00fdch FS, jako je NFS a virtio-9P, umo\u017e\u0148uje virtiofs dos\u00e1hnout v\u00fdkonu bl\u00edzk\u00e9ho m\u00edstn\u00edmu souborov\u00e9mu syst\u00e9mu;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/git.qemu.org\/?p=qemu.git;a=blob;f=docs\/interop\/dbus-vmstate.rst\">Podpora<\/a><\/noindex> live-migrace dat extern\u00edch proces\u016f pou\u017e\u00edvaj\u00edc\u00edch sb\u011brnici QEMU D-Bus;\n<li class=\"l\"> Mo\u017enost pou\u017eit\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/qemu\/qemu\/blob\/master\/docs\/memory-hotplug.txt\">pam\u011b\u0165ov\u00fdch backend\u016f<\/a><\/noindex> pro zaji\u0161t\u011bn\u00ed provozu hlavn\u00ed opera\u010dn\u00ed pam\u011bti hostitelsk\u00e9ho syst\u00e9mu. Backend je ur\u010den pomoc\u00ed volby &#171;-machine memory-backend&#187;;\n<li class=\"l\">  Nov\u00fd filtr &#171;compress&#187;, kter\u00fd lze pou\u017e\u00edt k vytvo\u0159en\u00ed komprimovan\u00fdch z\u00e1loh obraz\u016f;\n<li class=\"l\"> P\u0159\u00edkaz &#171;qemu-img measure&#187; nyn\u00ed m\u016f\u017ee pracovat s obrazy LUKS, a do p\u0159\u00edkazu &#171;qemu-img convert&#187; byla p\u0159id\u00e1na volba &#171;&#8212;target-is-zero&#187; pro p\u0159esko\u010den\u00ed nulov\u00e1n\u00ed c\u00edlov\u00e9ho obrazu;\n<li class=\"l\"> Byla p\u0159id\u00e1na experiment\u00e1ln\u00ed podpora procesu qemu-storage-daemon, poskytuj\u00edc\u00edho p\u0159\u00edstup k blokov\u00e9 \u00farovni QEMU a p\u0159\u00edkaz\u016fm QMP, v\u010detn\u011b prov\u00e1d\u011bn\u00ed operac\u00ed s blokov\u00fdmi za\u0159\u00edzen\u00edmi a integrovan\u00fdm serverem NBD, bez nutnosti spu\u0161t\u011bn\u00ed cel\u00e9 virtu\u00e1ln\u00ed ma\u0161iny;\n<li class=\"l\"> Do emul\u00e1toru architektury ARM byla p\u0159id\u00e1na mo\u017enost emulace CPU Cortex-M7 a byla zaji\u0161t\u011bna podpora desek tacoma-bmc, Netduino Plus 2 a Orangepi PC. Do emulovan\u00fdch stroj\u016f &#8216;virt&#8217; byla p\u0159id\u00e1na podpora za\u0159\u00edzen\u00ed vTPM a virtio-iommu. Byla vyhl\u00e1\u0161ena zastaralou mo\u017enost pou\u017eit\u00ed hostitelsk\u00fdch syst\u00e9m\u016f AArch32 pro spu\u0161t\u011bn\u00ed hostitelsk\u00fdch prost\u0159ed\u00ed KVM. Byla implementov\u00e1na podpora emulace n\u00e1sleduj\u00edc\u00edch funkc\u00ed architektur:\n<ul>\n<li> ARMv8.1: VHE, VMID16, PAN, PMU\n<li> ARMv8.2: UAO, DCPoP, ATS1E1, TTCNP\n<li> ARMv8.3: RCPC, CCIDX\n<li> ARMv8.4: PMU, RCPC\n<\/ul>\n<li class=\"l\"> Do emul\u00e1toru architektury HPPA byla p\u0159id\u00e1na podpora grafick\u00e9 konzole pomoc\u00ed grafick\u00e9ho za\u0159\u00edzen\u00ed HP Artist;\n<li class=\"l\"> Do emul\u00e1toru architektury MIPS byla p\u0159id\u00e1na podpora instrukce GINVT (Glob\u00e1ln\u00ed invalidace TLB);\n<li class=\"l\"> V emul\u00e1toru architektury PowerPC pro stroje &#8216;powernv&#8217; byla p\u0159id\u00e1na emulace hardwarov\u00fdch akceler\u00e1tor\u016f KVM pro spu\u0161t\u011bn\u00ed hostitelsk\u00fdch syst\u00e9m\u016f<br \/>\n KVM s klasick\u00fdm gener\u00e1torem k\u00f3du TCG (Tiny Code Generator). Pro emulaci non-volatile pam\u011bti byla p\u0159id\u00e1na podpora odra\u017een\u00fdch do souboru NVDIMM. Pro stroje &#8216;pseries&#8217; byla odstran\u011bna pot\u0159eba restartu pro synchronizaci pr\u00e1ce \u0159adi\u010d\u016f p\u0159eru\u0161en\u00ed XIVE\/XICS v re\u017eimu &#171;ic-mode=dual&#187;;<\/p>\n<li class=\"l\"> V emul\u00e1toru architektury RISC-V pro desky &#8216;virt&#8217; a &#8216;sifive_u&#8217; byla implementov\u00e1na podpora typov\u00fdch ovlada\u010d\u016f syscon v Linuxu pro \u0159\u00edzen\u00ed nap\u00e1jen\u00ed a restartov\u00e1n\u00ed. Pro desku &#8216;virt&#8217; byla p\u0159id\u00e1na podpora Goldfish RTC. Byla p\u0159id\u00e1na experiment\u00e1ln\u00ed implementace roz\u0161\u00ed\u0159en\u00ed hypervizoru;\n<li class=\"l\"> V emul\u00e1toru architektury s390 byla p\u0159id\u00e1na podpora AIS (Adapter Interrupt Suppression) p\u0159i provozu v re\u017eimu KVM.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52839\">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 5.0. \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 \u043d\u0430\u0442\u0438\u0432\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-79760","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.\" \/>\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\/cs\/blog\/news\/vypusk-emulyatora-qemu-5-0\" \/>\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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