config SOC_INTEL_COMMON_BLOCK_CPU bool default n help This option selects Intel Common CPU Model support code which provides various CPU related APIs which are common between all Intel Processor families. Common CPU code is supported for SOCs starting from SKL,KBL,APL, and future. config SOC_INTEL_COMMON_BLOCK_CPU_MPINIT bool default n help This option selects Intel Common CPU MP Init code. In this common MP Init mechanism, the MP Init is occurring before calling FSP Silicon Init. Hence, MP Init will be pulled to BS_DEV_INIT_CHIPS Entry. And on Exit of BS_DEV_INIT, it is ensured that all MTRRs are re-programmed based on the DRAM resource settings. config SOC_INTEL_COMMON_BLOCK_CAR bool default n help This option allows you to select how cache-as-ram (CAR) is set up. config INTEL_CAR_NEM bool default n help Traditionally, CAR is set up by using Non-Evict mode. This method does not allow CAR and cache to co-exist, because cache fills are blocked in NEM. config INTEL_CAR_CQOS bool default n help Cache Quality of Service allows more fine-grained control of cache usage. As result, it is possible to set up a portion of L2 cache for CAR and use the remainder for actual caching. config INTEL_CAR_NEM_ENHANCED bool default n help A current limitation of NEM (Non-Evict mode) is that code and data sizes are derived from the requirement to not write out any modified cache line. With NEM, if there is no physical memory behind the cached area, the modified data will be lost and NEM results will be inconsistent. ENHANCED NEM guarantees that modified data is always kept in cache while clean data is replaced. config CAR_HAS_SF_MASKS bool depends on INTEL_CAR_NEM_ENHANCED help In the case of non-inclusive cache architecture Snoop Filter MSR IA32_L3_SF_MASK_x programming is required along with the data ways. This is applicable for TGL and beyond. config COS_MAPPED_TO_MSB bool depends on INTEL_CAR_NEM_ENHANCED help On TGL and JSL platform the class of service configuration is mapped to MSB of MSR IA32_PQR_ASSOC. config USE_INTEL_FSP_MP_INIT bool "Perform MP Initialization by FSP" default n depends on !USE_INTEL_FSP_TO_CALL_COREBOOT_PUBLISH_MP_PPI help This option allows FSP to perform multiprocessor initialization. config USE_INTEL_FSP_TO_CALL_COREBOOT_PUBLISH_MP_PPI bool "Perform MP Initialization by FSP using coreboot MP PPI service" default y if MP_SERVICES_PPI default n help This option allows FSP to make use of MP services PPI published by coreboot to perform multiprocessor initialization. config INTEL_TME bool "Total Memory Encryption (TME)/Multi-key TME (MKTME)" default n help Enable Total Memory Encryption (TME)/Multi-key TME (MKTME). The spec is available at "https://software.intel.com/sites/default/files/managed/a5 /16/Multi-Key-Total-Memory-Encryption-Spec.pdf". If CPU supports TME, it would get enabled. If CPU supports MKTME, this same config option enables MKTME. config CPU_XTAL_HZ int help Base clock which virtually everything runs on. config CPU_SUPPORTS_PM_TIMER_EMULATION bool default n help Select this if the SoC's ucode supports PM ACPI timer emulation (Common timer Copy), which is required to be able to disable the TCO PM ACPI timer for power saving.