UEFI 開機階段 PEI是什麽？
PEI phase, decides the boot mode and initialize memory. There is PEI Core. It provides basic PEI service to PEI modules. And there is PEI dispatcher to disptacher all PEI mdules. If the boot mode is normal, it will prepare the environment for DXE and enters DXE.
Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: UEFI 開機階段 PEI是什麽？ ### Response: PEI phase, decides the boot mode and initialize memory. There is PEI Core. It provides basic PEI service to PEI modules. And there is PEI dispatcher to disptacher all PEI mdules. If the boot mode is normal, it will prepare the environment for DXE and enters DXE. 