{"id":118740,"date":"2024-08-01T03:43:00","date_gmt":"2024-08-01T01:43:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-gipervizora-xen-4-19"},"modified":"2024-08-01T03:43:00","modified_gmt":"2024-08-01T01:43:00","slug":"vypusk-gipervizora-xen-4-19","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/vypusk-gipervizora-xen-4-19","title":{"rendered":"A Xen 4.19 hipervizor kiad\u00e1sa.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Nyolc h\u00f3napos fejleszt\u00e9s ut\u00e1n megjelent a Xen 4.19 szabad hypervisor kiad\u00e1sa. Az \u00faj verzi\u00f3 fejleszt\u00e9s\u00e9ben olyan c\u00e9gek vettek r\u00e9szt, mint az Amazon, az Arm, az EPAM Systems \u00e9s az AMD. A Xen 4.19 branch friss\u00edt\u00e9sei 2026 febru\u00e1rj\u00e1ig tartanak, a s\u00e9r\u00fcl\u00e9kenys\u00e9gek jav\u00edt\u00e1sa pedig 2027 augusztus\u00e1ig folytat\u00f3dik.      <\/p>\n<p>Fontos v\u00e1ltoz\u00e1sok a Xen 4.19-ben:   <\/p>\n<ul>\n<li class=\"l\"> Az ARM architekt\u00far\u00e1ra \u00e9p\u00fcl\u0151 rendszerek sz\u00e1m\u00e1ra hozz\u00e1adva a &#171;FF-A Notifications&#187; aszinkron adatcsere mechanizmus t\u00e1mogat\u00e1sa, amelyet az FF-A (Firmware Framework for Arm A-profile) specifik\u00e1ci\u00f3 \u00edr le. Megval\u00f3sult a csom\u00f3pontok dinamikus hozz\u00e1ad\u00e1sa \u00e9s elt\u00e1vol\u00edt\u00e1sa a Xen device tree-ben .dtbo f\u00e1jlok seg\u00edts\u00e9g\u00e9vel.\n<li class=\"l\"> x86 architekt\u00far\u00e1ra \u00e9p\u00fcl\u0151 rendszerekhez \u00faj x2APIC megszak\u00edt\u00e1svez\u00e9rl\u0151 illeszt\u0151program ker\u00fclt hozz\u00e1ad\u00e1sra, amely logikai c\u00edmz\u00e9st (Cluster Logical) haszn\u00e1l a bels\u0151 megszak\u00edt\u00e1sok (IPI, inter-processor interrupt) kezel\u00e9s\u00e9re, \u00e9s fizikai c\u00edmz\u00e9st a k\u00fcls\u0151 megszak\u00edt\u00e1sokhoz.\n<li class=\"l\"> A k\u00f6vetkez\u0151 kiad\u00e1sban elavultk\u00e9nt jelentett\u00e9k be az Intel Xeon Phi processzorok t\u00e1mogat\u00e1s\u00e1t.\n<li class=\"l\"> A PVH virtu\u00e1lisiz\u00e1ci\u00f3s m\u00f3d a &#171;korl\u00e1toz\u00e1sokkal t\u00e1mogatott&#187; kateg\u00f3ri\u00e1ba ker\u00fclt dom0 sz\u00e1m\u00e1ra, ami a paravirtualiz\u00e1ci\u00f3 (PV) elemeit kombin\u00e1lja a bemeneti\/kimeneti, megszak\u00edt\u00e1skezel\u00e9si, bet\u00f6lt\u00e9si \u00e9s hardver-interakci\u00f3s feladatokkal, a privilegiz\u00e1lt utas\u00edt\u00e1sok korl\u00e1toz\u00e1s\u00e1hoz, a rendszerh\u00edv\u00e1sok elszigetel\u00e9s\u00e9hez \u00e9s a mem\u00f3ria oldalainak virtualiz\u00e1l\u00e1s\u00e1hoz a teljes virtualiz\u00e1ci\u00f3 (HVM) seg\u00edts\u00e9g\u00e9vel. A PVH\/HVM t\u00e1mogat\u00e1st kapott m\u00e1s mem\u00f3riaoldalak (&#171;foreign pages&#187;) lek\u00e9pez\u00e9s\u00e9hez is, lehet\u0151v\u00e9 t\u00e9ve a QEMU stubdomain haszn\u00e1lat\u00e1t a PVH m\u00f3dban t\u00f6rt\u00e9n\u0151 eszk\u00f6zkezel\u00e9s \u00e9s elszigetel\u00e9s \u00e9rdek\u00e9ben. Optimaliz\u00e1lt\u00e1k a bet\u00f6lt\u00e9si folyamatot PVH haszn\u00e1lata eset\u00e9n. Hozz\u00e1adva az XENFEAT_hvm_pirqs be\u00e1ll\u00edt\u00e1s, amely lehet\u0151v\u00e9 teszi a pIRQ t\u00e1mogat\u00e1s szelekt\u00edv enged\u00e9lyez\u00e9s\u00e9t HVM m\u00f3dban fut\u00f3 vend\u00e9g rendszerek sz\u00e1m\u00e1ra.\n<li class=\"l\"> \u00daj 9pfs backend ker\u00fclt hozz\u00e1ad\u00e1sra, amely lehet\u0151v\u00e9 teszi a Plan 9 h\u00e1l\u00f3zati f\u00e1jlrendszer haszn\u00e1lat\u00e1t az egyik virtu\u00e1lis g\u00e9p sz\u00e1m\u00e1ra a m\u00e1sikhoz val\u00f3 hozz\u00e1f\u00e9r\u00e9shez. Az \u00faj backend h\u00e1tt\u00e9rfolyamatk\u00e9nt fut a gazdag\u00e9p k\u00f6rnyezet (dom0) oldal\u00e1n. A backend m\u00e1r haszn\u00e1latban van a Xenstore-stubdom-ban a Xenstore teljes nyomk\u00f6vet\u00e9s\u00e9nek t\u00e1mogat\u00e1sa \u00e9rdek\u00e9ben.\n<li class=\"l\"> A Xen \u00e1ltal haszn\u00e1lt maxim\u00e1lis CPU sz\u00e1m\u00e1t 4095-r\u0151l 16383-ra emelt\u00e9k.\n<li class=\"l\"> A systemd-vel t\u00f6rt\u00e9nt ford\u00edt\u00e1shoz (.\/configure &#8212;enable-systemd) ki lett z\u00e1rva a libsystemd k\u00f6nyvt\u00e1r a ford\u00edt\u00e1si f\u00fcgg\u0151s\u00e9gekb\u0151l (a systemd-notify t\u00e1mogat\u00e1s saj\u00e1t, cs\u00f6kkentett k\u00f6nyvt\u00e1ron kereszt\u00fcl val\u00f3sul meg).\n<li class=\"l\"> Az AMD CPU nyomk\u00f6vet\u00e9sek elemz\u00e9s\u00e9hez a xenalyze alkalmaz\u00e1sban m\u00e1r nem sz\u00fcks\u00e9ges a &#171;&#8212;svm-mode&#187; opci\u00f3 haszn\u00e1lata.\n<li class=\"l\"> Folytat\u00f3dik a C programoz\u00e1si nyelven t\u00f6rt\u00e9n\u0151 biztons\u00e1gos \u00e9s megb\u00edzhat\u00f3 szoftverfejleszt\u00e9s k\u00f6vetelm\u00e9nyeinek megval\u00f3s\u00edt\u00e1sa, ahogy azt a kritikus rendszerekhez k\u00e9sz\u00fclt MISRA-C specifik\u00e1ci\u00f3k megfogalmazt\u00e1k.\n<li class=\"l\"> Folyat\u00f3dik a RISC-V \u00e9s Power (ppc64le) architekt\u00far\u00e1k portjainak fejleszt\u00e9se.       <\/ul>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61640\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 8 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Xen 4.19. \u0412 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u043f\u0440\u0438\u043d\u044f\u043b\u0438 \u0443\u0447\u0430\u0441\u0442\u0438\u0435 \u0442\u0430\u043a\u0438\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438, \u043a\u0430\u043a Amazon, Arm, EPAM Systems \u0438 AMD. \u0424\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u0432\u0435\u0442\u043a\u0438 Xen 4.19 \u043f\u0440\u043e\u0434\u043b\u0438\u0442\u0441\u044f \u0434\u043e \u0444\u0435\u0432\u0440\u0430\u043b\u044f 2026 \u0433\u043e\u0434\u0430, \u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u044f \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0434\u043e \u0430\u0432\u0433\u0443\u0441\u0442\u0430 2027 \u0433\u043e\u0434\u0430. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 Xen 4.19: \u0414\u043b\u044f \u0441\u0438\u0441\u0442\u0435\u043c \u043d\u0430 \u0431\u0430\u0437\u0435 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b ARM [&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-118740","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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