RE: [tpmdd-devel] [PATCH] TPM: Issue TPM_STARTUP at driver load ifthe TPM has not been started

[Peter.Huewe]

Hi Jason,

> The TPM will respond to TPM_GET_CAP with TPM_ERR_INVALID_POSTINIT if
> TPM_STARTUP has not been issued. This will result in the TPM driver
> failing to load and no way to recover. Detect this and automatically
> issue TPM_STARTUP.

> This is for embedded applications where the kernel is the first thing
> to touch the TPM.

Thanks for working on this.
I also thought about this scenario quite often.

Shouldn't we then also add a TpmStartup(ST_STATE) in case of a resume?
 rc=GetCapability()
 if(rc==INVALID_POSTINIT)
 	tpm_transmit ("TPM_STARTUP(ST_STATE)")...

Thanks,
Peter
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