diff options
| -rw-r--r-- | src/soc/intel/meteorlake/Kconfig | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig index b29b3bcfba..3d99f81481 100644 --- a/src/soc/intel/meteorlake/Kconfig +++ b/src/soc/intel/meteorlake/Kconfig @@ -364,4 +364,25 @@ config BUILDING_WITH_DEBUG_FSP help Set this option if debug build of FSP is used. +config DROP_CPU_FEATURE_PROGRAM_IN_FSP + bool + default y if MP_SERVICES_PPI_V2_NOOP + default n + help + This is to avoid FSP running basic CPU feature programming on BSP + and on APs using the "CpuFeaturesPei.efi" module. The feature programming + includes enabling x2APIC, MCA, MCE and Turbo etc. + + Most of these feature programming are getting performed today in scope + of coreboot doing MP Init. Running these redundant programming in scope + of FSP (when `USE_FSP_FEATURE_PROGRAM_ON_APS` config is enabled) would + results in CPU exception. + + SoC users to select this config after dropping "CpuFeaturesPei.ffs" module + from FSP-S Firmware Volume (FV). Upon selection, coreboot runs those additional + feature programming on BSP and APs. + + This feature is default enabled, in case of "coreboot running MP init" + aka MP_SERVICES_PPI_V2_NOOP config is selected. + endif |