[XS] Change in coreboot[main]: security/tpm/tspi: Do TPM Restart if TPM Resume fails

[Tim Crawford (Code Review)]

Attention is currently required from: Christian Walter, Paul Menzel, Tim Crawford.

Hello Christian Walter, build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/75878?usp=email

to look at the new patch set (#5).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: security/tpm/tspi: Do TPM Restart if TPM Resume fails
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security/tpm/tspi: Do TPM Restart if TPM Resume fails

The Infineon SLB 9672 on newer Clevo machines regularly fails TPM Resume
on S3 with the error `TPM_RC_VALUE`.

Per TPM2 spec, handle the failure by performing a TPM Restart.
> The startup behavior defined by this specification is different than
> TPM 1.2 with respect to Startup(STATE). A TPM 1.2 device will enter
> Failure Mode if no state is available when the TPM receives
> Startup(STATE). This is not the case in this specification. It is up
> to the CRTM to take corrective action if it the TPM returns
> TPM_RC_VALUE in response to Startup(STATE).

Fixes the following error from being repeatedly logged in Linux:
> kernel: tpm tpm0: A TPM error (256) occurred attempting get random

Ref: Trusted Platform Module Library, Part 1: Architecture, rev 1.59
Change-Id: I3388007d4448c93bd0dda591c8ca7d1a8dc5306b
Signed-off-by: Tim Crawford 
---
M src/security/tpm/tspi/tspi.c
1 file changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/78/75878/5