[coreboot-gerrit] Change in coreboot[master]: soc/amd/cezanne: Enable secure counters

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Marshall Dawson, Rob Barnes, Felix Held.
Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59477 )

Change subject: soc/amd/cezanne: Enable secure counters
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Patch Set 2:

(1 comment)

File src/mainboard/google/guybrush/Kconfig:

https://review.coreboot.org/c/coreboot/+/59477/comment/ea381d47_cf50ae1f 
PS1, Line 57: VBOOT_STARTS_BEFORE_BOOTBLOCK
> Why is it dependent on before bootblock? In theory we can do this if verstage runs in the x86.

In theory we can do it. But this is going to be consumed by Trusted OS in PSP and needs to be defined before that.

PSP Verstage can meet that requirement. Vboot in x86 might probably be late and need some handshaking between x86 and PSP if need to be enabled in Vboot in x86.