{"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\/en\/blog\/news\/vypusk-gipervizora-xen-4-19","title":{"rendered":"Release of hypervisor Xen 4.19","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>After 8 months of development, the release of the free hypervisor Xen 4.19 has been published. Companies such as Amazon, Arm, EPAM Systems, and AMD participated in the development of the new release. Updates for the Xen 4.19 branch will continue until February 2026, while vulnerability fixes will be published until August 2027.      <\/p>\n<p>Key changes in Xen 4.19:   <\/p>\n<ul>\n<li class=\"l\"> Support for the 'FF-A Notifications' data exchange mechanism, described in the FF-A (Firmware Framework for Arm A-profile) specification, has been added for ARM architecture-based systems. The ability to dynamically add and remove nodes in the Xen device tree using .dtbo files has been implemented.\n<li class=\"l\"> For x86 architecture systems, a new x2APIC interrupt controller driver has been added, using the Cluster Logical addressing mode for internal interrupts (IPI, inter-processor interrupt) and physical addressing mode for external interrupts.\n<li class=\"l\"> Support for Intel Xeon Phi processors has been deprecated and will be removed in the next release.\n<li class=\"l\"> The PVH virtualization mode for dom0 has been reclassified as 'supported with caveats', combining elements of paravirtualization (PV) for I\/O, interrupt handling, boot management, and hardware interaction, with full virtualization (HVM) to restrict privileged instructions, isolate system calls, and virtualize memory page tables. Support for mapping foreign memory pages has been added in PVH\/HVM, allowing the use of the QEMU stubdomain for device isolation and management in PVH mode. Optimizations have been made to speed up booting when using PVH. The XENFEAT_hvm_pirqs configuration has been added, allowing selective enabling of pIRQ support for guest systems running in HVM mode (full virtualization).\n<li class=\"l\"> A new 9pfs backend has been added, allowing the use of the Plan 9 network file system for one virtual machine to access another. The new backend runs as a background process on the host environment (dom0). The backend is already in use in Xenstore-stubdom for full Xenstore tracing support.\n<li class=\"l\"> The maximum number of CPUs used in Xen has been increased from 4095 to 16383.\n<li class=\"l\"> When built with systemd (.\/configure \u2014enable-systemd), the libsystemd library has been excluded from build dependencies (systemd-notify support is implemented through a custom stripped-down library).\n<li class=\"l\"> For analyzing traces for AMD CPUs in xenalyze, it is no longer necessary to use the '--svm-mode' option.\n<li class=\"l\"> The implementation of requirements for developing safe and reliable programs in C, outlined in the MISRA-C specifications for critical systems, has continued.\n<li class=\"l\"> Development of ports for RISC-V and Power (ppc64le) architectures has been continued.       <\/ul>\n<p>Source: <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 5.0.2 - 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