[M] Change in coreboot[master]: soc/amd/common/psp_verstage: Pass SRAM buffer to Crypto Engine

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Matt DeVillier, Fred Reitberger, Felix Held.

Hello Jason Glenesk, Raul Rangel, Matt DeVillier, Fred Reitberger, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/68184

to look at the new patch set (#2).

Change subject: soc/amd/common/psp_verstage: Pass SRAM buffer to Crypto Engine
......................................................................

soc/amd/common/psp_verstage: Pass SRAM buffer to Crypto Engine

Crypto engine prefers the buffer from SRAM. CBFS verification may pass
the mapped address of a CBFS file from SPI flash. This causes PSP crypto
engine to return invalid address. Hence if the buffer is from SRAM, pass
it directly to crypto engine. Else copy into a temporary buffer before
passing it to crypto engine.

BUG=b:b:227809919
TEST=Build and boot to OS in skyrim with CBFS verification enabled using
both x86 verstage and PSP verstage.

Change-Id: Ie9bc9e786f302e7938969c8093d5405b5a85b711
Signed-off-by: Karthikeyan Ramasubramanian 
---
M src/soc/amd/common/psp_verstage/vboot_crypto.c
1 file changed, 57 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/84/68184/2