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util/apcb: Add apcb_v3_edit tool

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apcb_v3_edit.py tool edits APCB V3 binaries. Specifically it will inject
up to 16 SPDs into an existing APCB. The APCB must have a magic number
at the top of each SPD slot.

BUG=b:209486191
BRANCH=None
TEST=Inject 4 SPDs into magic APCB, boot guybrush with modified APCB

Change-Id: I9148977c415df41210a3a13a1cd9b3bc1504a480
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60281
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This commit is contained in:
Rob Barnes
2021-12-21 07:19:12 -07:00
committed by Felix Held
parent d2bba5ccd8
commit f26ce9f00e
3 changed files with 161 additions and 0 deletions
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Documentation/util.md
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@@ -12,6 +12,8 @@ settings. `Perl`
* __apcb__ - AMD PSP Control Block tools
* _apcb_edit.py_ - This tool allows patching an existing APCB
binary with specific SPDs and GPIO selection pins. `Python3`
* _apcb_v3_edit.py_ - This tool allows patching an existing APCB V3
binary with specific SPDs. `Python3`
* __archive__ - Concatenate files and create an archive `C`
* __autoport__ - Automated porting coreboot to Sandy Bridge/Ivy Bridge
platforms `Go`