sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

treewide: Unify Google branding

Browse Source 
Branding changes to unify and update Chrome OS to ChromeOS (removing the
space).

This CL also includes changing Chromium OS to ChromiumOS as well.

BUG=None
TEST=N/A

Change-Id: I39af9f1069b62747dbfeebdd62d85fabfa655dcd
Signed-off-by: Jon Murphy <jpmurphy@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65479
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
This commit is contained in:
Jon Murphy
2022-06-28 10:36:23 -06:00
committed by Felix Held
parent dc86804a7d
commit c4e90454f4
82 changed files with 126 additions and 126 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
Documentation/technotes/2015-11-rebuilding-coreboot-image-generation.md
View File

@@ -3,7 +3,7 @@ Rebuilding coreboot image generation
Current situation
-----------------
Chrome OS (CrOS) probably has the most complex image bundling process in the
ChromeOS (CrOS) probably has the most complex image bundling process in the
coreboot ecosystem. To make CrOS features more accessible to the wider
coreboot community, we want to move these capabilities into upstream
coreboot’s build system.
@@ -21,7 +21,7 @@ putting more data (eg. the bitmap data, keys) as raw data into other fmap
regions.
With the recent addition of more files to CBFS, both on the coreboot side
(dsdt, FSP, and so on) and with Chrome OS specifics (eg. more files describing
(dsdt, FSP, and so on) and with ChromeOS specifics (eg. more files describing
boot screens) we either need to expand the scope of bundle\_firmware or move
the capability to build complex images to upstream coreboot’s build system.
This document proposes to do the latter and outlines how this could be
@@ -41,14 +41,14 @@ images:
variable to guarantee success if there’s enough room for the files. While that
could be added, that becomes more make macro work indistinguishable from magic
that people fail to understand, break and with good reason complain about
to work around such issues, Chrome OS firmware uses a custom tool with even
to work around such issues, ChromeOS firmware uses a custom tool with even
more special cases to finally build the image it needs. If coreboot upstream
is to support vboot, it should also be powerful enough not to need magic tools
that only live within downstream projects.
Requirements
------------
A complete Chrome OS coreboot image consists of (depending on the device)
A complete ChromeOS coreboot image consists of (depending on the device)
* platform specific data in raw fmap regions (eg IFD, ME firmware),
* the bootblock (coming from the bootblock),
* three copies of coreboot, consisting of the stages (verstage, romstage,
@@ -68,7 +68,7 @@ using a yet to be implemented switching scheme based on fmaps) consists of
* payload plus data (with each of the coreboot copies),
Since a single platform is potentially built with different payload
configurations (eg. modding a Chromebook to not use the verified Chrome OS
configurations (eg. modding a Chromebook to not use the verified ChromeOS
boot scheme), some concerns need to be kept separate:
* Platform requirements that have nothing to do with the payload or boot schemes
* IFD, ME, … need to copied to the right place
@@ -111,11 +111,11 @@ Boot method manifest
--------------------
The boot method manifest can subdivide the BIOS region, eg. using it directly
(for coreboot’s “simple” bootblock), splitting it in two (for coreboot’s
fallback/normal) or in many parts (for Chrome OS, which requires two CBFS
fallback/normal) or in many parts (for ChromeOS, which requires two CBFS
regions, one for GBB, several for VPD, …).
It also specifies which of the file lists specified earlier belong in which
region (eg. with verstage verifying romstage, verstage needs to be only in
Chrome OS’ RO region, while romstage belongs in RO and both RW regions).
ChromeOS’ RO region, while romstage belongs in RO and both RW regions).
It can also specify a post processing step that is executed before the
chipset’s.
@@ -148,7 +148,7 @@ It specifies an IFD region, an ME, and the BIOS region. After the image is
built, the entire image needs to be processed (although the tool likely works
only on a small part of it)
It’s built in a Chrome OS-like configuration (simplified at places to avoid
It’s built in a ChromeOS-like configuration (simplified at places to avoid
distracting from the important parts), so it has three CBFS regions, and
several data regions for its own purpose (similar to GBB, FWID, VPD, …). After
the regions are filled, one data region must be post-processed to contain