config CACHE_MRC_SETTINGS bool help Save cached MRC settings if CACHE_MRC_SETTINGS config MRC_SETTINGS_CACHE_SIZE hex default 0x10000 config MRC_SETTINGS_PROTECT bool "Enable protection on MRC settings" default n config HAS_RECOVERY_MRC_CACHE bool default n config MRC_SETTINGS_VARIABLE_DATA bool default n config MRC_WRITE_NV_LATE bool default n help MRC settings are normally written to NVRAM at BS_DEV_ENUMERATE-EXIT. If a platform requires MRC settings written to NVRAM later than normal, select this item. This will cause the write to occur at BS_OS_RESUME_CHECK-ENTRY. config MRC_STASH_TO_CBMEM bool default y if MRC_WRITE_NV_LATE || BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES default n help Instead of writing back MRC_CACHE training data back to the MRC_CACHE right away, stash the data into cbmem. This data will be written back later to MRC_CACHE. This is selected for platforms which either do not support writes to SPI flash in early stages (BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES) or the platforms that need to write back the MRC data in late ramstage boot states (MRC_WRITE_NV_LATE). config MRC_SAVE_HASH_IN_TPM bool "Save a hash of the MRC_CACHE data in TPM NVRAM" depends on VBOOT_STARTS_IN_BOOTBLOCK && TPM2 && !TPM1 && !VBOOT_MOCK_SECDATA default y help Store a hash of the MRC_CACHE training data in a TPM NVRAM space to ensure that it cannot be tampered with. config MRC_CACHE_USING_MRC_VERSION bool default y if UDK_VERSION >= UDK_202302_VERSION default n help Use the MRC version info from FSP extended header to store the MRC cache data. This method relies on the FSP_PRODUCER_DATA_TABLES belongs to the `FspProducerDataHeader.h`file to get the MRC version. Intel FSP built with EDK2 version 202302 onwards has support to retrieve the MRC version by directly parsing the binary. endif # CACHE_MRC_SETTINGS