On Tue, 18 Jul 2023 at 05:53, lukas.funke-oss@weidmueller.com wrote:
From: Lukas Funke lukas.funke@weidmueller.com
This adds a new etype 'xilinx-fsbl-auth'. By using this etype it is possible to created an authenticated SPL (FSBL in Xilinx terms) for ZynqMP boards.
The etype uses Xilinx Bootgen tools in order to transform the SPL into a bootable image and sign the image with a given primary and secondary public key. For more information to signing the FSBL please refer to the Xilinx Bootgen documentation.
Here is an example of the etype in use:
spl { filename = "boot.signed.bin"; xilinx-fsbl-auth { psk-key-name-hint = "psk0"; ssk-key-name-hint = "ssk0"; auth-params = "ppk_select=0", "spk_id=0x00000000"; u-boot-spl-nodtb { }; u-boot-spl-dtb { }; }; };For this to work the hash of the primary public key has to be fused into the ZynqMP device and authentication (RSA_EN) has to be set.
For testing purposes: if ppk hash check should be skipped one can add the property 'fsbl_config = "bh_auth_enable";' to the etype. However, this should only be used for testing(!).
Signed-off-by: Lukas Funke lukas.funke@weidmueller.com
Changes in v3:
- Changed etype from entry to section
- Changed property name "psk-filename" to "psk-key-name-hint"
- Changed property name "ssk-filename" to "ssk-key-name-hint"
- Decode spl elf file instead of reading start symbol
- Improved test coverage
- Improved documentation
Changes in v2:
- Add 'keysrc-enc' property to pass down to Bootgen
- Improved documentation
- Use predictable output names for intermediated results
tools/binman/entries.rst | 71 ++++++++ tools/binman/etype/xilinx_fsbl_auth.py | 221 +++++++++++++++++++++++++ 2 files changed, 292 insertions(+) create mode 100644 tools/binman/etype/xilinx_fsbl_auth.py
Reviewed-by: Simon Glass sjg@chromium.org