BIOS region write protection is disabled!
SMM_BWP = 0 << SMM BIOS Write Protection # python3 chipsec_main.py -m common.bios_wp PASSED: SPI Flash Controller locked correctly. SPI Flash Controller configuration is locked FLOCKDN = 1 << Flash Configuration Lock-Down FDOPSS = 1 << Flash Descriptor Override Pin-Strap Status HSFS = 0圎008 << Hardware Sequencing Flash Status Register (SPIBAR + 0x4) [ Module: SPI Flash Controller Configuration Locks To fix the firmware you should do the same kind of disassembly and analysis as I have done for the Mac Pro 2,1 firmware. Bad firmware checks for a specific processor model number and halts if it is not an exact match. Good firmware checks the processor family, and if it actually has specific code for multiple families, chooses the appropriate branch. When a firmware starts running one of the first things it does is calls CPUID (op code 0F A2). In some cases ( Dell) this is intentional.
Processor compatibility is limited by badly written firmware. New processors models for any socket are always made fully compatible with older hardware.
Besides, the operating system loads a newer version of microcodes anyway.Įxperience shows that adding microcodes to Mac firmware will make the system less likely to boot. No processor sold should need microcodes to boot. People erroneously think that upgrading a firmware's set of microcodes will make the computer support newer processors.
