[XS] Change in coreboot[main]: soc/intel/cannonlake: Use FSP MP Init by default when INTEL_TXT enabled

[Michał Żygowski (Code Review)]

Michał Żygowski has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/83731?usp=email )

Change subject: soc/intel/cannonlake: Use FSP MP Init by default when INTEL_TXT enabled
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soc/intel/cannonlake: Use FSP MP Init by default when INTEL_TXT enabled

To get all CPU features programmed properly for Intel TXT we need
to use FSP MP Init. Have not yet found a way to program the features
correctly and not have the FSP lock the registers before coreboot
can do something about it.

TEST=Boot Linux with tboot on Protectli VP4670 with TXT enabled

Change-Id: I0f57e97477b89d953e24d0657335b777f4eaa45d
Signed-off-by: Michał Żygowski 
---
M src/soc/intel/cannonlake/Kconfig
1 file changed, 7 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/31/83731/1

diff --git a/src/soc/intel/cannonlake/Kconfig b/src/soc/intel/cannonlake/Kconfig
index 3aa06f4..cc04929 100644
--- a/src/soc/intel/cannonlake/Kconfig
+++ b/src/soc/intel/cannonlake/Kconfig
@@ -340,6 +340,13 @@
    hex
    default 0x40000 # 256KB

+# To get all CPU features programmed properly for Intel TXT we need
+# to use FSP MP Init. Have not yet found a way to program the features
+# correctly and not have the FSP lock the registers before coreboot
+# can do something about it.
+config USE_INTEL_FSP_MP_INIT
+	default y if INTEL_TXT
+
 config INTEL_GMA_BCLV_OFFSET
    default 0xc8258