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diff --git a/Lessons_uncategorized/Lesson_VPD/README.md b/Lessons_uncategorized/Lesson_VPD/README.md deleted file mode 100644 index fb9ba4f..0000000 --- a/Lessons_uncategorized/Lesson_VPD/README.md +++ /dev/null @@ -1,80 +0,0 @@ - - - - -``` -$ git diff OvmfPkg/OvmfPkgDefines.fdf.inc -diff --git a/OvmfPkg/OvmfPkgDefines.fdf.inc b/OvmfPkg/OvmfPkgDefines.fdf.inc -index 35fd454b97..d12ee97ea5 100644 ---- a/OvmfPkg/OvmfPkgDefines.fdf.inc -+++ b/OvmfPkg/OvmfPkgDefines.fdf.inc -@@ -61,7 +61,10 @@ DEFINE FW_BLOCKS = 0x400 - DEFINE CODE_BASE_ADDRESS = 0xFFC84000 - DEFINE CODE_SIZE = 0x0037C000 - DEFINE CODE_BLOCKS = 0x37C --DEFINE FVMAIN_SIZE = 0x00348000 -+DEFINE VPD_OFFSET = 0x84000 -+DEFINE VPD_SIZE = 0x01000 -+DEFINE FVMAIN_OFFSET = 0x85000 -+DEFINE FVMAIN_SIZE = 0x00347000 - DEFINE SECFV_OFFSET = 0x003CC000 - DEFINE SECFV_SIZE = 0x34000 - !endif -``` - -If we want to create VPD file we need to add a special define `VPD_TOOL_GUID` to the DSC `[Defines]` section. This define determines a tool which would be used for VPD generation. EDK2 comes with one such tool, so let's try to use it. - -Add this to the `OvmfPkg/OvmfPkgX64.dsc` file: -``` -[Defines] - ... - VPD_TOOL_GUID = 8C3D856A-9BE6-468E-850A-24F7A8D38E08 -``` - -This GUID corresponds to the GUID of the tool `VPDTOOL` defined in the `Conf/tools_def.txt`: -``` -################## -# BPDG tool definitions -################## -*_*_*_VPDTOOL_PATH = BPDG -*_*_*_VPDTOOL_GUID = 8C3D856A-9BE6-468E-850A-24F7A8D38E08 -``` -The tool `VPDTOOL` is a Python module from the folder [`BaseTools/Source/Python/BPDG/`](https://github.com/tianocore/edk2/blob/master/BaseTools/Source/Python/BPDG/) which is used via [`BaseTools/BinWrappers/PosixLike/BPDG`](https://github.com/tianocore/edk2/blob/master/BaseTools/BinWrappers/PosixLike/BPDG) wrapper on Linux. As a wrapper folder `BaseTools/BinWrappers/PosixLike` gets added to the environment `PATH` variable after the `. edksetup.sh` command, we can simply declare path for `VPDTOOL` as `BPDG`. - - -``` -[PcdsFixedAtBuild] - gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress|0x0 -``` - -``` -[PcdsDynamicVpd] - gUefiLessonsPkgTokenSpaceGuid.PcdMyDynamicVar32 | 0x40 | 0x55555555 - gUefiLessonsPkgTokenSpaceGuid.PcdMyDynamicVar32_1 | * | 0x66666666 -``` - -``` -$ git diff OvmfPkg/OvmfPkgX64.fdf -diff --git a/OvmfPkg/OvmfPkgX64.fdf b/OvmfPkg/OvmfPkgX64.fdf -index 5fa8c08958..be0f4b52ff 100644 ---- a/OvmfPkg/OvmfPkgX64.fdf -+++ b/OvmfPkg/OvmfPkgX64.fdf -@@ -26,7 +26,12 @@ NumBlocks = $(FW_BLOCKS) - - !include VarStore.fdf.inc - --$(VARS_SIZE)|$(FVMAIN_SIZE) -+$(VPD_OFFSET)|$(VPD_SIZE) -+gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress -+FILE = $(OUTPUT_DIRECTORY)/$(TARGET)_$(TOOL_CHAIN_TAG)/FV/8C3D856A-9BE6-468E-850A-24F7A8D38E08.bin -+ -+#$(VARS_SIZE)|$(FVMAIN_SIZE) -+$(FVMAIN_OFFSET)|$(FVMAIN_SIZE) - FV = FVMAIN_COMPACT -``` - -# Links - -[EDK II Build System Output File Format](https://edk2-docs.gitbook.io/edk-ii-dsc-specification/appendix_d_vpd_data_files/d1_edk_ii_build_system_output_file_format) - -[GUIDed Tools and PCD VPD Data](https://edk2-docs.gitbook.io/edk-ii-build-specification/7_build_environment/73_guided_tools) |