{"id":101076,"date":"2021-08-23T16:22:46","date_gmt":"2021-08-23T14:22:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/prodemonstrirovan-zapusk-linux-okruzheniya-s-gnome-na-ustrojstvah-s-chipom-apple-m1"},"modified":"2021-08-23T16:22:46","modified_gmt":"2021-08-23T14:22:47","slug":"prodemonstrirovan-zapusk-linux-okruzheniya-s-gnome-na-ustrojstvah-s-chipom-apple-m1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/prodemonstrirovan-zapusk-linux-okruzheniya-s-gnome-na-ustrojstvah-s-chipom-apple-m1","title":{"rendered":"Se ha demostrado el funcionamiento del entorno Linux con GNOME en dispositivos con chip Apple M1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

La iniciativa para implementar soporte en Linux para el chip Apple M1, promovida por los proyectos Asahi Linux y Corellium, ha alcanzado un nivel que permite ejecutar el escritorio GNOME en un entorno Linux en un sistema con el chip Apple M1. La salida a pantalla se organiza mediante framebuffer, y el soporte de OpenGL se proporciona a trav\u00e9s del rasterizador de software LLVMPipe. El siguiente paso ser\u00e1 utilizar el coprocesador de pantalla para proporcionar una salida con resoluci\u00f3n de hasta 4K, cuyo reverso de ingenier\u00eda del controlador ya ha sido realizado. <\/p>\n

El proyecto Asahi logr\u00f3 incluir en el n\u00facleo principal de Linux el soporte inicial para los componentes SoC M1 que no est\u00e1n relacionados con la GPU. En el entorno Linux demostrado, adem\u00e1s de las capacidades del n\u00facleo est\u00e1ndar, se utilizaron varios parches adicionales relacionados con PCIe, el controlador pinctrl para el bus interno y el controlador de pantalla. Estas adiciones han permitido la salida a pantalla y han logrado que USB y Ethernet funcionen. La aceleraci\u00f3n gr\u00e1fica a\u00fan no se utiliza. <\/p>\n

Es interesante que para la reversa de ingenier\u00eda del SoC M1, el proyecto Asahi, en lugar de intentar desensamblar los controladores de macOS, implement\u00f3 un hipervisor que opera en un nivel entre macOS y el chip M1, interceptando y registrando todas las operaciones con el chip de manera transparente. Entre las caracter\u00edsticas del SoC M1 que dificultan la implementaci\u00f3n de soporte para el chip en sistemas operativos de terceros, se menciona la adici\u00f3n de un coprocesador en el controlador de pantalla (DCP). La mitad de la funcionalidad del controlador de pantalla de macOS ha sido transferida a este coprocesador, que invoca funciones preparadas a trav\u00e9s de una interfaz RPC especial. <\/p>\n

Los entusiastas ya han analizado suficientes desaf\u00edos de esta interfaz RPC para utilizar el coprocesador para la salida en pantalla, as\u00ed como para controlar el cursor de hardware y realizar operaciones de composici\u00f3n y escalado. El problema radica en que la interfaz RPC depende del firmware y cambia en cada versi\u00f3n de macOS, por lo que en Asahi Linux se planea implementar soporte solo para ciertas versiones de firmware. En primer lugar, se proporcionar\u00e1 soporte para el firmware que se entrega con macOS 12 \u00abMonterey\u00bb. No es posible descargar la versi\u00f3n de firmware necesaria, ya que el firmware lo instala iBoot en la etapa previa a la transferencia del control al sistema operativo y con verificaci\u00f3n mediante firma digital.

\"Se<\/center>
\"Se<\/center>
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Fuente: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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