audk/UefiCpuPkg/Feature/Capsule/MicrocodeCapsuleTxt/Readme.md

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# How to generate Microcode FMP from Microcode TXT file
1) Copy directory `UefiCpuPkg/Feature/Capsule/MicrocodeUpdateTxt` to `<Your Platform Package>/MicrocodeUpdateTxt`
2) Copy microcode TXT file to`<Your Platform Package>/MicrocodeUpdateTxt/Microcode`
3) Uncomment and update statement in `[Sources]` section of `<Your Platform Package>/MicrocodeUpdateTxt/Microcode/Microcode.inf` with name of Microcode TXT file copied in previous step.
[Sources]
<Your Microcode TXT file>
Uncomment and update `FILE DATA` statement in `<Your Platform Package>/MicrocodeUpdateTxt/MicrocodeCapsuleTxt.fdf` with path to a Microcode MCB file. The MCB file is placed in `$(WORKSPACE)/$(OUTPUT_DIRECTORY)/$(TARGET)_$(TOOL_CHAIN_TAG)/IA32/<Your Platform Package>/MicrocodeUpdateTxt/Microcode/Microcode/OUTPUT/`.
`FILE DATA = <your Microcode MCB file path>`
Uncomment and update `PLATFORM_NAME`, `FLASH_DEFINITION`, `OUTPUT_DIRECTORY` section in `<Your Platform Package>/MicrocodeUpdateTxt/MicrocodeCapsuleTxt.dsc` with <Your Platform Package>.
PLATFORM_NAME = <Your Platform Package>
FLASH_DEFINITION = <Your Platform Package>/MicrocodeCapsuleTxt/MicrocodeCapsuleTxt.fdf
OUTPUT_DIRECTORY = Build/<Your Platform Package>
Uncomment and update statement in `Components` section of `<Your Platform Package>/MicrocodeUpdateTxt/MicrocodeCapsuleTxt.dsc` with path to a Microcode INF file.
[Components]
<Your Microcode INF file>
4) Use EDK II build tools to generate the Microcode FMP Capsule
`build -p <Your Platform Package>/MicrocodeCapsuleTxt/MicrocodeCapsuleTxt.dsc`
5) The generated Microcode FMP Capsule is found at `$(WORKSPACE)/$(OUTPUT_DIRECTORY)/$(TARGET)_$(TOOL_CHAIN_TAG)/FV/MicrocodeCapsule.Cap`