{"id":35994,"date":"2019-10-31T22:09:01","date_gmt":"2019-10-31T19:09:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kompaniya-siemens-vypustila-gipervizor-jailhouse-0-11\/"},"modified":"2019-10-31T22:09:01","modified_gmt":"2019-10-31T19:09:01","slug":"kompaniya-siemens-vypustila-gipervizor-jailhouse-0-11","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/kompaniya-siemens-vypustila-gipervizor-jailhouse-0-11","title":{"rendered":"Siemens ha lanzado el hipervisor Jailhouse 0.11","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La empresa Siemens <noindex><a rel=\"nofollow\" href=\"https:\/\/lkml.org\/lkml\/2019\/7\/8\/86\">ha publicado<\/a><\/noindex> lanzamiento del hipervisor libre <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/siemens\/jailhouse\">Jailhouse 0.11<\/a><\/noindex>. El hipervisor es compatible con sistemas x86_64 con extensiones VMX+EPT o SVM+NPT (AMD-V), as\u00ed como con procesadores ARMv7 y ARMv8\/ARM64 con extensiones para virtualizaci\u00f3n. Adem\u00e1s <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/siemens\/jailhouse-images\">se desarrolla<\/a><\/noindex> un generador de im\u00e1genes para el hipervisor Jailhouse, formado en base a paquetes de Debian para dispositivos compatibles. El c\u00f3digo del proyecto <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/siemens\/jailhouse\">se distribuye<\/a><\/noindex>  bajo la licencia GPLv2. <\/p>\n<p>El hipervisor est\u00e1 implementado como un m\u00f3dulo para el n\u00facleo de Linux y proporciona virtualizaci\u00f3n a nivel de n\u00facleo. Los componentes para sistemas invitados ya est\u00e1n incluidos en el n\u00facleo principal de Linux. Para gestionar el aislamiento se utilizan los mecanismos de virtualizaci\u00f3n proporcionados por los CPU modernos. Las caracter\u00edsticas distintivas de Jailhouse son su implementaci\u00f3n ligera y su enfoque en la vinculaci\u00f3n de m\u00e1quinas virtuales a un CPU fijo, \u00e1reas de RAM y dispositivos de hardware. Este enfoque permite que en un servidor multiprocesador f\u00edsico funcionen m\u00faltiples entornos virtuales independientes, cada uno de los cuales est\u00e1 vinculado a su propio n\u00facleo de procesador. <\/p>\n<p>Con un v\u00ednculo estricto al CPU, los costos de la operaci\u00f3n del hipervisor se reducen al m\u00ednimo y su implementaci\u00f3n se simplifica considerablemente, ya que no es necesario ejecutar un planificador complejo para la distribuci\u00f3n de recursos; asignar un n\u00facleo de CPU espec\u00edfico garantiza que no se ejecuten otras tareas en ese CPU. Una ventaja de este enfoque es la posibilidad de asegurar acceso garantizado a los recursos y un rendimiento predecible, lo que hace que Jailhouse sea una soluci\u00f3n adecuada para la creaci\u00f3n de tareas que se ejecutan en tiempo real. Sin embargo, la desventaja es la escalabilidad limitada, que se basa en el n\u00famero de n\u00facleos de CPU.<\/p>\n<p>En la terminolog\u00eda de Jailhouse, los entornos virtuales se denominan \"celdas\" (cell, en el contexto de Jailhouse). Dentro de la celda, el sistema se comporta como un servidor uniprocesador, mostrando un rendimiento <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.google.com\/file\/d\/0B6HTUUWSPdd-Zl93MVhlMnRJRjg\/edit\">cercano<\/a><\/noindex> al rendimiento de un n\u00facleo de CPU dedicado. En la celda puede ejecutarse un entorno de cualquier sistema operativo, as\u00ed como entornos reducidos para ejecutar una sola aplicaci\u00f3n o aplicaciones espec\u00edficamente preparadas para resolver tareas en tiempo real. La configuraci\u00f3n se establece en <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/siemens\/jailhouse\/blob\/master\/configs\/\">.archivos cell<\/a><\/noindex>, que definen el entorno de CPU seleccionado, regiones de memoria y puertos de entrada\/salida. <\/p>\n<p><center><img decoding=\"async\" alt=\"Siemens ha lanzado el hipervisor Jailhouse 0.11\" src=\"\/wp-content\/uploads\/2019\/07\/637fe3330b175ba0bceebf4abc58f2b3.png\" style=\"display:block;margin: 0 auto;\" \/><\/center><\/p>\n<p>En esta nueva versi\u00f3n<\/p>\n<ul>\n<li class=\"l\"> Se agreg\u00f3 soporte para las plataformas Marvell MACCHIATObin, Xilinx Ultra96,<br \/>\n Microsys miriac SBC-LS1046A y Texas Instruments AM654 IDK;<\/p>\n<li class=\"l\"> Se agreg\u00f3 estad\u00edsticas desglosadas por cada n\u00facleo de CPU;\n<li class=\"l\"> Se asegur\u00f3 el restablecimiento de dispositivos PCI al finalizar el trabajo de la c\u00e1mara;\n<li class=\"l\"> La estructura del Device Tree se ha adaptado a las \u00faltimas versiones del n\u00facleo de Linux;\n<li class=\"l\"> Para las plataformas ARM y ARM64 se a\u00f1adi\u00f3 protecci\u00f3n contra ataques Spectre v2. Se han tenido en cuenta los cambios en las \u00faltimas versiones de QEMU en la configuraci\u00f3n de qemu-arm64. Se solucionaron problemas con la reescritura del firmware PSCI en las placas Orange Pi Zero;\n<li class=\"l\"> Para la plataforma x86, al iniciar entornos de demostraci\u00f3n (inmates), se habilit\u00f3 el uso de instrucciones SSE y AVX, as\u00ed como un informe sobre excepciones a\u00f1adido.\n<\/ul>\n<p>Entre los planes futuros se destaca el soporte tan esperado para IOMMUv3, la mejora en la eficiencia del uso de la cach\u00e9 del procesador (<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Cache_coloring\">cache coloring<\/a><\/noindex>), la resoluci\u00f3n de problemas con el APIC en los procesadores AMD Ryzen, la reestructuraci\u00f3n del dispositivo ivshmem y la incorporaci\u00f3n de controladores al n\u00facleo.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fuente: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51057\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Siemens \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \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 Jailhouse 0.11. \u0413\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0440\u0430\u0431\u043e\u0442\u0443 \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 x86_64 \u0441 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f\u043c\u0438 VMX+EPT \u0438\u043b\u0438 SVM+NPT (AMD-V), \u0430 \u0442\u0430\u043a\u0436\u0435 \u043d\u0430 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445 ARMv7 \u0438 ARMv8\/ARM64 \u0441 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f\u043c\u0438 \u0434\u043b\u044f \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438. \u041e\u0442\u0434\u0435\u043b\u044c\u043d\u043e \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440 \u043e\u0431\u0440\u0430\u0437\u043e\u0432 \u0434\u043b\u044f \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 Jailhouse, \u0444\u043e\u0440\u043c\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 Debian \u0434\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2. \u0413\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d \u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":26909,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-35994","post","type-post","status-publish","format-standard","has-post-thumbnail","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=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Siemens \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u043b\u0438\u0437 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e 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