Introduce SPI TPM v2.0 support
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Cover letter [U-Boot] [PATCH 00/18] Introduce SPI TPM v2.0 support
Hi Tom,
Quoted 16 lines · Tom Rini
Quoted 8 lines · Miquel Raynal
Current U-Boot supports TPM v1.2 specification. The new specification (v2.0) is not backward compatible and renames/introduces several functions.
This series introduces a new SPI driver following the TPM v2.0 specification. It has been tested on a ST TPM but should be usable with others v2.0 compliant chips.
Quoted 5 lines
Then, basic functionalities are introduced one by one for the v2.0 specification. The INIT command now can receive a parameter to distinguish further TPMv1/TPMv2 commands. After that, the library itself will know which one is pertinent and will return a special error if the desired command is not supported for the selected specification.
Quoted 4 lines
Thanks for doing all of this. Can you please enable this feature on sandbox and/or an x86 QEMU variant where I assume we could also then setup automated testing?
Not sure I understand your request correctly: the TPM commands are already available in the sandbox (I don't see what I could add), I just extended the current set of commands.
However, even with these commands, we won't be able to test them in a sandbox unless with an actual device.
I probably miss something, can you explain a bit more what you would like?
Thank you,
Miquèl
Signature · 3 lines
Miquel Raynal, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com