Re: sandbox TPM

Hi Heinrich,

On Sat, 28 Aug 2021 at 06:18, Heinrich Schuchardt xypron.glpk@gmx.de wrote:

The current TPM emulation in drivers/tpm/tpm(2)_tis_sandbox.c is not spec compliant.

Do you mean it is incomplete or that it has bugs? If it is incomplete, what is needed by U-Boot?

A TPM emulation as UNIX socket exists with https://github.com/stefanberger/swtpm.git. QEMU already uses this emulator.

Couldn't the sandbox do the same? I think this is the fastest way to get a compliant sandbox TPM.

Well we could if we need it. Are you sure it is a good idea? There is a lot of code there. Are you thinking it would be copied into the U-Boot tree and kept in sync with a script, perhaps? Presumably the project would accept changes we need?

Regards, Simon