Change in coreboot[master]: soc/intel/xeon_sp/smmrelocate: Don't run twice on the BSP

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/50722 )

Change subject: soc/intel/xeon_sp/smmrelocate: Don't run twice on the BSP
......................................................................

soc/intel/xeon_sp/smmrelocate: Don't run twice on the BSP

This only makes sense if relocation via MSR is possible, to relocate
APs in parallel. xeon_sp hardware does not support these MSR.

TESTED: ocp/deltalake boots fine. SMM is relocated on CPU 0 just like
all other cores.

Change-Id: Ic45e6985093b8c9a1cee13c87bc0f09c77aaa0d2
Signed-off-by: Arthur Heymans 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50722
Tested-by: build bot (Jenkins) 
Reviewed-by: Angel Pons 
---
M src/soc/intel/xeon_sp/cpx/cpu.c
M src/soc/intel/xeon_sp/skx/cpu.c
M src/soc/intel/xeon_sp/smmrelocate.c
3 files changed, 2 insertions(+), 17 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Angel Pons: Looks good to me, approved

diff --git a/src/soc/intel/xeon_sp/cpx/cpu.c b/src/soc/intel/xeon_sp/cpx/cpu.c
index be01fc0..b3ab236 100644
--- a/src/soc/intel/xeon_sp/cpx/cpu.c
+++ b/src/soc/intel/xeon_sp/cpx/cpu.c
@@ -183,7 +183,7 @@
    .pre_mp_init = pre_mp_init,
    .get_cpu_count = get_thread_count,
    .get_smm_info = get_smm_info,
-	.pre_mp_smm_init = smm_initialize,
+	.pre_mp_smm_init = smm_southbridge_clear_state,
    .relocation_handler = smm_relocation_handler,
    .get_microcode_info = get_microcode_info,
    .post_mp_init = post_mp_init,
diff --git a/src/soc/intel/xeon_sp/skx/cpu.c b/src/soc/intel/xeon_sp/skx/cpu.c
index f9cd356..848c907 100644
--- a/src/soc/intel/xeon_sp/skx/cpu.c
+++ b/src/soc/intel/xeon_sp/skx/cpu.c
@@ -217,7 +217,7 @@
    .pre_mp_init = pre_mp_init,
    .get_cpu_count = get_platform_thread_count,
    .get_smm_info = get_smm_info,
-	.pre_mp_smm_init = smm_initialize,
+	.pre_mp_smm_init = smm_southbridge_clear_state,
    .relocation_handler = smm_relocation_handler,
    .post_mp_init = post_mp_init,
 };
diff --git a/src/soc/intel/xeon_sp/smmrelocate.c b/src/soc/intel/xeon_sp/smmrelocate.c
index a71a740..dc4b511 100644
--- a/src/soc/intel/xeon_sp/smmrelocate.c
+++ b/src/soc/intel/xeon_sp/smmrelocate.c
@@ -127,18 +127,3 @@
    if (mtrr_cap.lo & SMRR_SUPPORTED)
    	write_smrr(relo_params);
 }
-
-void smm_initialize(void)
-{
-	/* Clear the SMM state in the southbridge. */
-	smm_southbridge_clear_state();
-	/* Run the relocation handler for on the BSP . */
-	smm_initiate_relocation();
-}
-
-void smm_relocate(void)
-{
-	/* Save states via MSR does not seem to be supported on CPX */
-	if (!boot_cpu())
-		smm_initiate_relocation();
-}