From d60fb7a958780dc6215258430501d4c221b1ea0c Mon Sep 17 00:00:00 2001 From: Simon Glass <sjg@chromium.org> Date: Sun, 30 Jul 2023 11:15:19 -0600 Subject: [PATCH] x86: coreboot: Update doc for CBFS access Add an example to show how cbfs is used. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> [Removed CONFIG_CMD_CBFS from defconfig files] Signed-off-by: Bin Meng <bmeng.cn@gmail.com> --- doc/board/coreboot/coreboot.rst | 34 +++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/doc/board/coreboot/coreboot.rst b/doc/board/coreboot/coreboot.rst index 0fe95af56d..21801a8a4d 100644 --- a/doc/board/coreboot/coreboot.rst +++ b/doc/board/coreboot/coreboot.rst @@ -51,6 +51,40 @@ can be useful for running UEFI applications, for example. This has only been lightly tested. +CBFS access +----------- + +You can use the 'cbfs' commands to access the Coreboot filesystem:: + + => cbfsinit + => cbfsinfo + + CBFS version: 0x31313132 + ROM size: 0x100000 + Boot block size: 0x4 + CBFS size: 0xffdfc + Alignment: 64 + Offset: 0x200 + + => cbfsls + size type name + ------------------------------------------ + 32 cbfs header cbfs master header + 16720 17 fallback/romstage + 53052 17 fallback/ramstage + 398 raw config + 715 raw revision + 117 raw build_info + 4044 raw fallback/dsdt.aml + 640 cmos layout cmos_layout.bin + 17804 17 fallback/postcar + 335797 payload fallback/payload + 607000 null (empty) + 10752 bootblock bootblock + + 12 file(s) + + => Memory map ---------- -- 2.39.5