From 0944172a26ad0974043d2bf2fb9d0dd36c96b19f Mon Sep 17 00:00:00 2001
From: Konstantin Aladyshev <aladyshev22@gmail.com>
Date: Mon, 5 Sep 2022 17:35:00 +0300
Subject: Add VPD PCD lesson

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
---
 Lessons_uncategorized/Lesson_VPD/README.md | 80 ------------------------------
 1 file changed, 80 deletions(-)
 delete mode 100644 Lessons_uncategorized/Lesson_VPD/README.md

(limited to 'Lessons_uncategorized/Lesson_VPD/README.md')

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)
-- 
cgit v1.2.3-18-g5258