diff options
| author | Simon Glass <sjg@chromium.org> | 2018-07-17 13:25:44 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2018-08-01 16:30:48 -0600 |
| commit | 0ef87aa332e024c94d07a897c9f595be37077de8 (patch) | |
| tree | e6ca145b3de1f8499c102d568218fa8ab3f34e50 /tools/binman/README.entries | |
| parent | aeffc5e95627a788c328cb92f82ad9a38d792ed8 (diff) | |
binman: Add support for Chromium GBB
This entry contains a Google Binary Block, used to store keys and bitmaps
in a Chromium image.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'tools/binman/README.entries')
| -rw-r--r-- | tools/binman/README.entries | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/binman/README.entries b/tools/binman/README.entries index 6f09626b24..41b70192c0 100644 --- a/tools/binman/README.entries +++ b/tools/binman/README.entries @@ -91,6 +91,25 @@ FMAP does not support this. +Entry: gbb: An entry which contains a Chromium OS Google Binary Block +--------------------------------------------------------------------- + +Properties / Entry arguments: + - hardware-id: Hardware ID to use for this build (a string) + - keydir: Directory containing the public keys to use + - bmpblk: Filename containing images used by recovery + +Chromium OS uses a GBB to store various pieces of information, in particular +the root and recovery keys that are used to verify the boot process. Some +more details are here: + + https://www.chromium.org/chromium-os/firmware-porting-guide/2-concepts + +but note that the page dates from 2013 so is quite out of date. See +README.chromium for how to obtain the required keys and tools. + + + Entry: intel-cmc: Entry containing an Intel Chipset Micro Code (CMC) file ------------------------------------------------------------------------- |