You can control what goes into cache if you want to. The effort to make an open source bios do this in order to have working memory before the DRAM controllers

You can control what goes into cache if you want to. The effort to make an open source bios do this in order to have working memory before the DRAM controllers are initialized.[0] 0. https://www.coreboot.org/data/yhlu/cache_as_ram_lb_09142006.pdf https://www.coreboot.org/data/yhlu/cache_as_ram_lb_09142006....