[coreboot] initial stages

最新推荐文章于 2025-09-28 10:55:49 发布

山猫Show

最新推荐文章于 2025-09-28 10:55:49 发布

阅读量358

点赞数

CC 4.0 BY-SA版权

分类专栏： Coreboot 文章标签： coreboot

本文链接：https://blog.youkuaiyun.com/wangyijieonline/article/details/122577188

Coreboot 专栏收录该内容

9 篇文章 ¥19.90 ¥99.00

订阅专栏

超级会员免费看

本文详细介绍了coreboot的启动流程，从bootblock阶段开始，接着是romstage，然后深入到ramstage的各个状态，包括设备初始化、资源分配、加载payload等步骤，最后探讨了Next Stage payloads的概念。

1 bootblock

bootblock是coreboot的第一个启动阶段。

coreboot-4.15-1078-g50251400d2 Mon Jan 17 17:14:20 UTC 2022 bootblock starting (log level: 7)...
FMAP: Found "FLASH" version 1.1 at 0x0.
FMAP: base = 0xff000000 size = 0x1000000 #areas = 3
FMAP: area COREBOOT found @ 200 (16776704 bytes)
CBFS: mcache @0x00014e00 built for 11 files, used 0x270 of 0x4000 bytes
CBFS: Found 'fallback/romstage' @0x80 size 0x4550 in mcache @0x00014e2c
BS: bootblock times (exec / console): total (unknown) / 1 ms
QEMU debugcon not found [port 0x402]


coreboot-4.15-1078-g50251400d2 Mon Jan 17 17:14:20 UTC 2022 romstage starting (log level: 7)...
QEMU: firmware config interface detected
Firmware config version id: 3
QEMU: firmware config: Found 'etc/e820'
CBMEM:
IMD: root

了解本专栏