{"id":119708,"date":"2024-09-05T15:43:01","date_gmt":"2024-09-05T13:43:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-emulyator-qemu-9-1-0"},"modified":"2024-09-05T15:43:01","modified_gmt":"2024-09-05T13:43:01","slug":"dostupen-emulyator-qemu-9-1-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/dostupen-emulyator-qemu-9-1-0","title":{"rendered":"El\u00e9rhet\u0151 a QEMU 9.1.0 emul\u00e1tor.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Bemutat\u00e1sra ker\u00fclt a QEMU 9.1 projekt kiad\u00e1sa. A QEMU emul\u00e1tork\u00e9nt lehet\u0151v\u00e9 teszi, hogy egy adott hardverplatformra k\u00e9sz\u00fclt programot teljesen m\u00e1s architekt\u00far\u00e1j\u00fa rendszeren futtassunk, p\u00e9ld\u00e1ul ARM alkalmaz\u00e1st hajtsunk v\u00e9gre egy x86-os sz\u00e1m\u00edt\u00f3g\u00e9pen. Virtualiz\u00e1ci\u00f3s m\u00f3dban a QEMU k\u00f3dv\u00e9grehajt\u00e1s\u00e1nak teljes\u00edtm\u00e9nye az izol\u00e1lt k\u00f6rnyezetben k\u00f6zel van a hardveres rendszer\u00e9hez, mivel k\u00f6zvetlen\u00fcl hajtja v\u00e9gre az utas\u00edt\u00e1sokat a CPU-n, \u00e9s kihaszn\u00e1lja a Xen hipervizort vagy a KVM modult a Linuxban, illetve az NVMM modult a NetBSD-ben.    <\/p>\n<p>A projektet eredetileg Fabrice Bellard hozta l\u00e9tre, azzal a c\u00e9llal, hogy lehet\u0151v\u00e9 tegye az x86 platformra k\u00e9sz\u00fclt Linux v\u00e9grehajthat\u00f3 f\u00e1jlok futtat\u00e1s\u00e1t m\u00e1s architekt\u00far\u00e1kon. A fejleszt\u00e9s sor\u00e1n 14 hardverarchitekt\u00fara teljes emul\u00e1ci\u00f3j\u00e1nak t\u00e1mogat\u00e1sa is hozz\u00e1ad\u00e1sra ker\u00fclt, az emul\u00e1lt hardvereszk\u00f6z\u00f6k sz\u00e1ma meghaladja a 400-at. A 9.1-es verzi\u00f3 el\u0151k\u00e9sz\u00edt\u00e9se sor\u00e1n t\u00f6bb mint 2800 m\u00f3dos\u00edt\u00e1st hajtottak v\u00e9gre 263 fejleszt\u0151t\u0151l.             <\/p>\n<p>A QEMU 9.1-be be\u00e9p\u00edtett f\u0151bb fejleszt\u00e9sek:   <\/p>\n<ul>\n<li class=\"l\"> A vend\u00e9g rendszerek migr\u00e1l\u00e1s\u00e1hoz haszn\u00e1lt eszk\u00f6zk\u00e9szletben megval\u00f3s\u00edtott\u00e1k az adatkompresszi\u00f3s m\u0171veletek gyors\u00edt\u00e1s\u00e1nak t\u00e1mogat\u00e1s\u00e1t, az IAA (Intel In-Memory Analytics Accelerator) vagy az UADK (User Space Accelerator Development Kit) technol\u00f3gia felhaszn\u00e1l\u00e1s\u00e1val. Javult a migr\u00e1ci\u00f3s kudarcok ut\u00e1ni helyre\u00e1ll\u00edt\u00e1s t\u00e1mogat\u00e1sa a postcopy m\u00f3dban.\n<li class=\"l\"> A virtio mechanizmusban, amelyet a vend\u00e9g rendszerek \u00e9s a gazda rendszer k\u00f6z\u00f6tti kommunik\u00e1ci\u00f3s k\u00f6lcs\u00f6nhat\u00e1s l\u00e9trehoz\u00e1s\u00e1ra alkalmaznak, hozz\u00e1adt\u00e1k a VIRTIO_F_NOTIFICATION_DATA funkci\u00f3 t\u00e1mogat\u00e1s\u00e1t, amely lehet\u0151v\u00e9 teszi a vend\u00e9g rendszerek oldal\u00e1n l\u00e9v\u0151 illeszt\u0151programok sz\u00e1m\u00e1ra, hogy tov\u00e1bbi adatokat k\u00fcldjenek a k\u00fcld\u00f6tt \u00e9rtes\u00edt\u00e9sekkel egy\u00fctt. Ez a funkci\u00f3 p\u00e9ld\u00e1ul hibakeres\u00e9si adatok k\u00fcld\u00e9s\u00e9re vagy a teljes\u00edtm\u00e9ny optimaliz\u00e1l\u00e1s\u00e1ra haszn\u00e1lhat\u00f3.\n<li class=\"l\"> A Linux rendszerekhez hozz\u00e1ad\u00f3dott a guest-network-get-route parancs a guest-agent sz\u00e1m\u00e1ra, m\u00edg a Windows rendszerekhez a guest-ssh-* parancsok lettek bevezetve. A parancssori fel\u00fcleten kib\u0151v\u00edtett\u00e9k az \"allowed\" \u00e9s \"blocked\" parancsok konfigur\u00e1l\u00e1s\u00e1nak lehet\u0151s\u00e9geit.\n<li class=\"l\"> Az ARM architekt\u00fara emul\u00e1tor\u00e1ban hozz\u00e1adt\u00e1k az EAT_NMI, FEAT_CSV2_3, FEAT_ETS2, FEAT_Spec_FPACC, FEAT_WFxT \u00e9s FEAT_Debugv8p8 processzor-kiterjeszt\u00e9sek t\u00e1mogat\u00e1s\u00e1t. A SMMUv3 (System Memory Management Unit) mem\u00f3ria kezel\u0151 blokk emul\u00e1ci\u00f3ja sor\u00e1n megval\u00f3s\u00edtott\u00e1k a be\u00e1gyazott \u00e9s k\u00e9tr\u00e9teg\u0171 mem\u00f3riaoldalak t\u00e1mogat\u00e1s\u00e1t. A Xilinx Zynq platformokhoz hozz\u00e1adt\u00e1k a t\u00f6bbprocesszoros konfigur\u00e1ci\u00f3k, a DM163 kijelz\u0151vez\u00e9rl\u0151 \u00e9s a gyors\u00edt\u00f3t\u00e1rvez\u00e9rl\u0151 emul\u00e1ci\u00f3j\u00e1nak t\u00e1mogat\u00e1s\u00e1t.\n<li class=\"l\"> A LoongArch architekt\u00far\u00e1 emul\u00e1tor\u00e1ban lehet\u0151s\u00e9g ny\u00edlt ELF form\u00e1tum\u00fa kernelk\u00e9pek k\u00f6zvetlen bet\u00f6lt\u00e9s\u00e9re, \u00e9s a rendszer most m\u00e1r t\u00e1mogatja ak\u00e1r 256 CPU ind\u00edt\u00e1s\u00e1t az extioi kiterjeszt\u00e9s felhaszn\u00e1l\u00e1s\u00e1val. Fejlesztett\u00e9k a hibakeres\u00e9si lehet\u0151s\u00e9geket.\n<li class=\"l\"> A RISC-V architekt\u00far\u00e1j\u00fa emul\u00e1torban a k\u00f6vetkez\u0151 processzorkiterjeszt\u00e9sek t\u00e1mogat\u00e1sa v\u00e1lt el\u00e9rhet\u0151v\u00e9: Zve32x, Zve64x, Zimop, Zcmop, Zama16b, Zabha, Zawrs \u00e9s Smcntrpmf, valamint a privilegiz\u00e1lt utas\u00edt\u00e1sk\u00e9szlet 1.13 verzi\u00f3ja. Fejlesztett\u00e9k a hibakeres\u00e9si lehet\u0151s\u00e9geket.\n<li class=\"l\"> A SPARC architekt\u00fara emul\u00e1tor\u00e1ban hozz\u00e1adt\u00e1k az FMAF, IMA, VIS3 \u00e9s VIS4 processzorkiterjeszt\u00e9sek t\u00e1mogat\u00e1s\u00e1t.\n<li class=\"l\"> Az x86 architekt\u00far\u00e1j\u00fa emul\u00e1tor a hypervisor sz\u00e1m\u00e1ra <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/vps\/abuzoustojchivye-vps\/\"   title=\"KVM\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4427\">KVM<\/a> megval\u00f3s\u00edtotta a vend\u00e9grendszerek ind\u00edt\u00e1s\u00e1nak lehet\u0151s\u00e9g\u00e9t az AMD SEV-SNP (Secure Nested Paging) processzorkiterjeszt\u00e9s haszn\u00e1lat\u00e1val, amely biztons\u00e1gos m\u0171k\u00f6d\u00e9st biztos\u00edt a be\u00e1gyazott mem\u00f3riaoldal-t\u00e1bl\u00e1k kezel\u00e9s\u00e9ben. T\u00e1mogatja a CPU emul\u00e1ci\u00f3j\u00e1t az Icelake-Server-v7, SapphireRapids-v3 \u00e9s SierraForest mikroarchitekt\u00far\u00e1k alapj\u00e1n.\n<li class=\"l\"> A (CVE-2024-7409) sebezhet\u0151s\u00e9g kik\u00fcsz\u00f6b\u00f6l\u00e9sre ker\u00fclt <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/dts-newyork\/\"   title=\"szerveren\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2783\">szerveren<\/a> az NBD (Network Block Device) blokkeszk\u00f6z\u00f6kben, amely lehet\u0151v\u00e9 teszi, hogy a vend\u00e9grendszer manipul\u00e1ci\u00f3i sor\u00e1n a QEMU \u00f6sszeoml\u00e1s\u00e1t okozz\u00e1k az nbd-server-stop m\u0171velet v\u00e9grehajt\u00e1sa k\u00f6zben, m\u00e9g akkor is, ha a kliensnek nincs TLS-kulcsa a NBD szerverhez val\u00f3 csatlakoz\u00e1shoz.        <\/ul>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61813\">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 9.1. \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-119708","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 9.1.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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