This explains a bit of history on CAR in coreboot and how it works. Glossary CPU cache: CPU cache is a piece of fast memory used by the CPU to cache access to things accessed in the CPU's linear memory space. This includes for DRAM, PCI BARs, the boot flash. Cache-as-RAM/CAR: Using not memory mapped CPU cache as execution environment. XIP: Execute in place on a memory mapped (read only) medium. SRAM: Static Random Access Memory, here: memory mapped memory that needs no initialization. ROMCC: ...
