Change in coreboot[master]: cpu/x86/smm_loaderv2: Use the permanent stack top during relocation

[Arthur Heymans (Code Review)]

Attention is currently required from: Arthur Heymans.
Hello build bot (Jenkins), Angel Pons,

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

https://review.coreboot.org/c/coreboot/+/51186

to look at the new patch set (#3).

Change subject: cpu/x86/smm_loaderv2: Use the permanent stack top during relocation
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cpu/x86/smm_loaderv2: Use the permanent stack top during relocation

Use the same stack location during relocation as for the permanent
handler.

When the number of CPUs is too large the stacks during relocation
don't fit inside the default SMRAM segment at 0x30000. Currently the
code would just let the CPU stack base grow downwards outside of the
default SMM segment which would corrupt lower memory if S3 is
implemented.

Change-Id: I6a0a890e8b1c2408301564c22772032cfee4d296
Signed-off-by: Arthur Heymans 
---
M src/cpu/x86/mp_init.c
M src/cpu/x86/smm/smm_module_loader.c
M src/cpu/x86/smm/smm_module_loaderv2.c
M src/include/cpu/x86/smm.h
4 files changed, 12 insertions(+), 20 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/86/51186/3