tree ee851d75f7e16b07f649a410e313c68e48697156
parent 9e7497e64fabc9a9f7ab1349c44e917d822dc4fe
author Patrick Rudolph <patrick.rudolph@9elements.com> 1606836930 +0100
committer Patrick Rudolph <siro@das-labor.org> 1606927715 +0000

cpu/x86/smm/smm_stub: Fix stack canary on x86_64

On x86_64 the cannary is 8 bytes in size, so write the additional
4 bytes to make SMM handler happy.

Tested on Intel Skylake in long mode. No longer dies in SMM.

Change-Id: Id805c65717ec22f413803c21928d070602522b2c
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48215
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>