http://wiki.linuxtoy.cn/ 2026-05-14T18:12:22+00:00 http://wiki.linuxtoy.cn/ http://wiki.linuxtoy.cn/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2025-02-02T15:10:28+00:00 Anonymous (anonymous@undisclosed.example.com) http://wiki.linuxtoy.cn/doku.php?id=blog:arm:arm_el_levels&rev=1738509028&do=diff ARM 体系的EL演化史 <https://zhuanlan.zhihu.com/p/21258997> text/html 2025-02-02T15:10:28+00:00 Anonymous (anonymous@undisclosed.example.com) http://wiki.linuxtoy.cn/doku.php?id=blog:arm:cache_maintenance&rev=1738509028&do=diff flush cache linux/arch/arm64/mm/cache.S __flush_dcache_area(kaddr, size) text/html 2025-02-02T15:10:28+00:00 Anonymous (anonymous@undisclosed.example.com) http://wiki.linuxtoy.cn/doku.php?id=blog:arm:memory_layout&rev=1738509028&do=diff linux memory layout 在linux4.9内核启动过程会打印 virtual kernel memory layout: 代码位于arch/arm64/mm/init.c mem_init函数中 例如： Virtual kernel meory layout： modules : 0xffffff80 00000000 - 0xffffff80 08000000 ( 128 MB) vmalloc : 0xffffff80 08000000 - 0xffffffbe bfff0000 ( 250 GB) .text : 0xffffff80 08080000 - 0xffffff80 08a20000 ( 9856 KB) .rodata : 0xffffff80 08a20000 - 0xffffff80 08d00000 ( 2944 KB) .init : 0xffffff80 08d00000 - 0xffffff80 08d80000 ( 512 KB) .data : 0x…