TPM: hibernate with IMA PCR 10

[Ken Goldman]

On 5/4/2022 7:20 PM, Evan Green wrote:
> Enabling the kernel to be able to do encryption and integrity checks on
> the hibernate image prevents a malicious userspace from escalating to
> kernel execution via hibernation resume.  [snip]

I have a related question.

When a TPM powers up from hibernation, PCR 10 is reset.  When a
hibernate image is restored:

1. Is there a design for how PCR 10 is restored?

2. How are /sys/kernel/security/ima/[pseudofiles] saved and
restored?

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