Move lessons to separate folder

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>

19 files changed, 0 insertions, 1096 deletions

diff --git a/Lesson_15/Conf/target.txt b/Lesson_15/Conf/target.txt
deleted file mode 100644
index c109dcf..0000000
--- a/Lesson_15/Conf/target.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-ACTIVE_PLATFORM       = UefiLessonsPkg/UefiLessonsPkg.dsc

-TARGET                = RELEASE

-TARGET_ARCH           = X64

-TOOL_CHAIN_CONF       = Conf/tools_def.txt

-TOOL_CHAIN_TAG        = GCC5

-BUILD_RULE_CONF = Conf/build_rule.txt

-

diff --git a/Lesson_15/README.md b/Lesson_15/README.md
deleted file mode 100644
index 55447ca..0000000
--- a/Lesson_15/README.md
+++ /dev/null
@@ -1,359 +0,0 @@
-Let's print content of variables that define boot options in UEFI.
-
-To do it, we need to use `GetVariable()` API function from the EFI Runtime Services:
-```
-GetVariable()
-
-Summary:
-Returns the value of a variable.
-
-Prototype:
-typedef
-EFI_STATUS
-GetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- OUT UINT32 *Attributes OPTIONAL,
- IN OUT UINTN *DataSize,
- OUT VOID *Data OPTIONAL
- );
-
-Parameters:
-VariableName    A Null-terminated string that is the name of the vendor’s variable.
-VendorGuid      A unique identifier for the vendor
-Attributes      If not NULL, a pointer to the memory location to return the
-                attributes bitmask for the variable.
-                If not NULL, then Attributes is set on output both when
-                EFI_SUCCESS and when EFI_BUFFER_TOO_SMALL is returned.
-DataSize        On input, the size in bytes of the return Data buffer.
-                On output the size of data returned in Data.
-Data            The buffer to return the contents of the variable. May be NULL
-                with a zero DataSize in order to determine the size buffer needed.
-
-Description:
-Each vendor may create and manage its own variables without the risk of name conflicts by using a
-unique VendorGuid. When a variable is set its Attributes are supplied to indicate how the data variable
-should be stored and maintained by the system. The attributes affect when the variable may be accessed
-and volatility of the data
-
-If the Data buffer is too small to hold the contents of the variable, the error EFI_BUFFER_TOO_SMALL is
-returned and DataSize is set to the required buffer size to obtain the data.
-
-Status Codes Returned:
-EFI_SUCCESS 		The function completed successfully.
-EFI_NOT_FOUND 		The variable was not found.
-EFI_BUFFER_TOO_SMALL 	The DataSize is too small for the result. DataSize has been
-			updated with the size needed to complete the request. If
-			Attributes is not NULL, then the attributes bitmask for the
-			variable has been stored to the memory location pointed-to by
-			Attributes.
-...
-
-```
-
-In previous lesson we've discovered that these options are present in our environment under GUID `EFI_GLOBAL_VARIABLE` (gEfiGlobalVariableGuid):
-```
-Boot0000
-Boot0001
-Boot0002
-Boot0003
-Boot0004
-BootCurrent
-BootOrder
-```
-
-If we look at the UEFI spec for these options description we would find:
-```
-Each Boot#### variable contains an EFI_LOAD_OPTION. Each Boot#### variable is the name “Boot”
-appended with a unique four digit hexadecimal number. For example, Boot0001, Boot0002, Boot0A02,
-etc.
-
-...
-
-The BootOrder variable contains an array of UINT16’s that make up an ordered list of the Boot####
-options. The first element in the array is the value for the first logical boot option, the second element is
-the value for the second logical boot option, etc. The BootOrder order list is used by the firmware’s
-boot manager as the default boot order.
-
-...
-
-The BootCurrent variable is a single UINT16 that defines the Boot#### option that was selected on
-the current boot.
-```
-
-Create `ShowBootVariables` for this lesson.
-
-First let's try to get simple `UINT16 BootCurrent` option.
-
-We would be getting variables a lot in this program, so it is best to create a function that abstracts all the necessities of the `GetVariable` API calls:
-```
-EFI_STATUS
-GetNvramVariable( CHAR16   *VariableName,
-                  EFI_GUID *VariableOwnerGuid,
-                  VOID     **Buffer,
-                  UINTN    *BufferSize)
-{
-    UINTN Size = 0;
-    *BufferSize = 0;
-
-    EFI_STATUS Status = gRT->GetVariable(VariableName, VariableOwnerGuid, NULL, &Size, NULL);
-    if (Status != EFI_BUFFER_TOO_SMALL) {
-        Print(L"Error! 'gRT->GetVariable' call returned %r\n", Status);
-        return Status;
-    }
-
-    *Buffer = AllocateZeroPool(Size);
-    if (!Buffer) {
-        Print(L"Error! 'AllocateZeroPool' call returned %r\n", Status);
-        return EFI_OUT_OF_RESOURCES;
-    }
-
-    Status = gRT->GetVariable(VariableName, VariableOwnerGuid, NULL, &Size, *Buffer);
-    if (Status == EFI_SUCCESS) {
-        *BufferSize = Size;
-    } else {
-        FreePool( *Buffer );
-        *Buffer = NULL;
-    }
-
-    return Status;
-}
-```
-
-As with many other different UEFI APIs first `GetVariable` call gives us `EFI_BUFFER_TOO_SMALL` error, but fills `Size` variable with the size of the array that we need to allocate and pass to this function for the correct execution.
-We allocate necessary size with the `AllocateZeroPool` edk2 library call, like we did it in previous lesson. After that we call `GetVariable` function for the second time, expecting `EFI_SUCCESS` status.
-
-
-The main function would look like this:
-```
-#include <Library/UefiRuntimeServicesTableLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-#include <Library/MemoryAllocationLib.h>
-
-EFI_STATUS
-GetNvramVariable( CHAR16   *VariableName,
-                  EFI_GUID *VariableOwnerGuid,
-                  VOID     **Buffer,
-                  UINTN    *BufferSize)
-{
-  ...
-}
-
-INTN EFIAPI ShellAppMain(IN UINTN Argc, IN CHAR16 **Argv)
-{
-  UINTN OptionSize;
-  EFI_STATUS Status;
-
-  UINT16* BootCurrent;
-  Status = GetNvramVariable(L"BootCurrent", &gEfiGlobalVariableGuid, (VOID**)&BootCurrent, &OptionSize);
-  if (Status == EFI_SUCCESS) {
-    Print(L"BootCurrent=%d\n", *BootCurrent);
-  } else {
-    Print(L"Can't get BootCurrent variable\n");
-  }
-
-  return EFI_SUCCESS;
-}
-```
-
-If we execute this code under OVMF we would get:
-```
-FS0:\> ShowBootVariables.efi
-3
-```
-This means that `Boot0003` is active.
-
-
-Now let's get `UINT16 BootOrder[]` variable. It is an array of XXXX numbers that describe Boot option priority.
-So `{0,2,4,1,3}` for example would mean this order:
-```
-Boot0000
-Boot0002
-Boot0004
-Boot0001
-Boot0003
-```
-
-This is the code to get and print this array:
-```
-UINT16* BootOrderArray;
-Status = GetNvramVariable(L"BootOrder", &gEfiGlobalVariableGuid, (VOID**)&BootOrderArray, &OptionSize);
-if (Status == EFI_SUCCESS) {
-  for (UINTN i=0; i<(OptionSize/sizeof(UINT16)); i++) {
-    Print(L"Boot%04d%s\n", BootOrderArray[i], (BootOrderArray[i] == *BootCurrent)? L"*" : L"" );
-  }
-} else {
-  Print(L"Can't get BootOrder variable\n");
-}
-```
-
-If we execute this code under OVMF we would get:
-```
-Boot0000
-Boot0001
-Boot0002
-Boot0003*
-Boot0004
-```
-
-
-Now let's print information about every `Boot####` option.
-
-According to the UEFI the spec these options are stored in a `EFI_LOAD_OPTION` structure:
-```
-typedef struct _EFI_LOAD_OPTION {
- UINT32 Attributes;
- UINT16 FilePathListLength;
- // CHAR16 Description[];
- // EFI_DEVICE_PATH_PROTOCOL FilePathList[];
- // UINT8 OptionalData[];
-} EFI_LOAD_OPTION;
-
-Parameters
-Attributes 		The attributes for this load option entry. All unused bits must be zero
-			and are reserved by the UEFI specification for future growth.
-FilePathListLength	Length in bytes of the FilePathList. OptionalData starts at
-			offset sizeof(UINT32) + sizeof(UINT16) +
-			StrSize(Description) + FilePathListLength of the
-			EFI_LOAD_OPTION descriptor.
-Description 		The user readable description for the load option. This field ends
-			with a Null character.
-FilePathList 		A packed array of UEFI device paths. The first element of the array is
-			a device path that describes the device and location of the Image for
-			this load option. The FilePathList[0] is specific to the device
-			type. Other device paths may optionally exist in the FilePathList,
-			but their usage is OSV specific. Each element in the array is variable
-			length, and ends at the device path end structure. Because the size
-			of Description is arbitrary, this data structure is not guaranteed
-			to be aligned on a natural boundary. This data structure may have to
-			be copied to an aligned natural boundary before it is used.
-OptionalData 		The remaining bytes in the load option descriptor are a binary data
-			buffer that is passed to the loaded image. If the field is zero bytes
-			long, a NULL pointer is passed to the loaded image. The number of
-			bytes in OptionalData can be computed by subtracting the
-			starting offset of OptionalData from total size in bytes of the
-			EFI_LOAD_OPTION. 
-```
-In edk2 it is defined in a file https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Uefi/UefiSpec.h
-
-Pay attention to the fact that some fields in this structure are commented:
-```
-// CHAR16 Description[];
-// EFI_DEVICE_PATH_PROTOCOL FilePathList[];
-// UINT8 OptionalData[];
-```
-It is because these fields are variable size arrays, so we need to calculate offsets to them dynamically.
-
-Create a function that accepts names of a Boot variable (such as "Boot0003") and outputs all the needed information about it:
-```
-VOID PrintBootOption(CHAR16* BootOptionName)
-{
-  UINTN OptionSize;
-  UINT8* Buffer;
-
-  EFI_STATUS Status = GetNvramVariable(BootOptionName, &gEfiGlobalVariableGuid, (VOID**)&Buffer, &OptionSize);
-  if (Status == EFI_SUCCESS) {
-      EFI_LOAD_OPTION* LoadOption = (EFI_LOAD_OPTION*) Buffer;
-      CHAR16* Description = (CHAR16*)(Buffer + sizeof (EFI_LOAD_OPTION));
-      UINTN DescriptionSize = StrSize(Description);
-
-      Print(L"%s\n", Description);
-      if (LoadOption->FilePathListLength != 0) {
-        VOID* FilePathList = (UINT8 *)Description + DescriptionSize;
-        CHAR16* DevPathString = ConvertDevicePathToText(FilePathList, TRUE, FALSE);
-        Print(L"%s\n", DevPathString);
-      }
-  } else {
-    Print(L"Can't get %s variable\n", BootOptionName);
-  }
-}
-```
-
-This code uses pointer arithmetics that we've discussed above. To get `Description` field size we simply use `StrSize(Description)` call as `Description` field always ends with Null.
-
-To print DevicePath as a string we use `ConvertDevicePathToText` call (we've used it earlier in our `ImageInfo` application). To use it we need to add `#include <Library/DevicePathLib.h>` to our program.
-
-Now we need to construct "BootXXXX" variables from a `BootOrder` numbers.
-
-To do so we would use `UnicodeSPrint` function from the https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/PrintLib.h
-```
-/**
-  Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
-  Unicode format string and variable argument list.
-  This function is similar as snprintf_s defined in C11.
-
-  ...
-
-  @param  StartOfBuffer   A pointer to the output buffer for the produced Null-terminated
-                          Unicode string.
-  @param  BufferSize      The size, in bytes, of the output buffer specified by StartOfBuffer.
-  @param  FormatString    A Null-terminated Unicode format string.
-  @param  ...             Variable argument list whose contents are accessed based on the
-                          format string specified by FormatString.
-  @return The number of Unicode characters in the produced output buffer not including the
-          Null-terminator.
-**/
-
-UINTN
-EFIAPI
-UnicodeSPrint (
-  OUT CHAR16        *StartOfBuffer,
-  IN  UINTN         BufferSize,
-  IN  CONST CHAR16  *FormatString,
-  ...
-  );
-```
-
-Just in case in the same file there is a similar function for ASCII:
-```
-UINTN
-EFIAPI
-AsciiSPrint (
-  OUT CHAR8        *StartOfBuffer,
-  IN  UINTN        BufferSize,
-  IN  CONST CHAR8  *FormatString,
-  ...
-  );
-```
-
-
-So the code inside BootOrder loop now would look like this:
-```
-CHAR16 BootOptionStr[sizeof("Boot####")+1];
-UnicodeSPrint(BootOptionStr, (sizeof("Boot####")+1)*sizeof(CHAR16), L"Boot%04x", BootOrderArray[i]);
-Print(L"%s%s\n", BootOptionStr, (BootOrderArray[i] == *BootCurrent)? L"*" : L"" );
-PrintBootOption(BootOptionStr);
-Print(L"\n");
-```
-
-Don't forget to add `#include <Library/PrintLib.h>` to the start of the file.
-
-
-If we compile our app and execute it under OVMF we would get:
-```
-FS0:\> ShowBootVariables.efi
-Boot0000
-UiApp
-Fv(7CB8BDC9-F8EB-4F34-AAEA-3EE4AF6516A1)/FvFile(462CAA21-7614-4503-836E-8AB6F4662331)
-
-Boot0001
-UEFI QEMU DVD-ROM QM00003
-PciRoot(0x0)/Pci(0x1,0x1)/Ata(0x0)
-
-Boot0002
-UEFI QEMU HARDDISK QM00001
-PciRoot(0x0)/Pci(0x1,0x1)/Ata(0x0)
-
-Boot0003*
-EFI Internal Shell
-Fv(7CB8BDC9-F8EB-4F34-AAEA-3EE4AF6516A1)/FvFile(7C04A583-9E3E-4F1C-AD65-E05268D0B4D1)
-
-Boot0004
-UEFI PXEv4 (MAC:525400123456)
-PciRoot(0x0)/Pci(0x3,0x0)/MAC(525400123456,0x1)/IPv4(0.0.0.0)
-```
-
-We are definitely in the UEFI shell, so the `BootCurrent`(="*") is placed correctly.
-
-
diff --git a/Lesson_15/UefiLessonsPkg/HelloWorld/HelloWorld.c b/Lesson_15/UefiLessonsPkg/HelloWorld/HelloWorld.c
deleted file mode 100644
index 1f05899..0000000
--- a/Lesson_15/UefiLessonsPkg/HelloWorld/HelloWorld.c
+++ /dev/null
@@ -1,15 +0,0 @@
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-
-EFI_STATUS
-EFIAPI
-UefiMain (
-  IN EFI_HANDLE        ImageHandle,
-  IN EFI_SYSTEM_TABLE  *SystemTable
-  )
-{
-  SystemTable->ConOut->OutputString(SystemTable->ConOut, L"Hello World!\n");
-  gST->ConOut->OutputString(gST->ConOut, L"Hello again!\n");
-  Print(L"Bye!\n");
-  return EFI_SUCCESS;
-}
diff --git a/Lesson_15/UefiLessonsPkg/HelloWorld/HelloWorld.inf b/Lesson_15/UefiLessonsPkg/HelloWorld/HelloWorld.inf
deleted file mode 100644
index d65ca2e..0000000
--- a/Lesson_15/UefiLessonsPkg/HelloWorld/HelloWorld.inf
+++ /dev/null
@@ -1,18 +0,0 @@
-[Defines]
-  INF_VERSION                    = 1.25
-  BASE_NAME                      = HelloWorld
-  FILE_GUID                      = 2e55fa38-f148-42d3-af90-1be247323e30
-  MODULE_TYPE                    = UEFI_APPLICATION
-  VERSION_STRING                 = 1.0
-  ENTRY_POINT                    = UefiMain
-
-[Sources]
-  HelloWorld.c
-
-[Packages]
-  MdePkg/MdePkg.dec
-
-[LibraryClasses]
-  UefiApplicationEntryPoint
-  UefiLib
-
diff --git a/Lesson_15/UefiLessonsPkg/ImageHandle/ImageHandle.c b/Lesson_15/UefiLessonsPkg/ImageHandle/ImageHandle.c
deleted file mode 100644
index 32e9c43..0000000
--- a/Lesson_15/UefiLessonsPkg/ImageHandle/ImageHandle.c
+++ /dev/null
@@ -1,105 +0,0 @@
-#include <Library/MemoryAllocationLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-
-typedef struct {
-  UINTN               Signature;
-  /// All handles list of IHANDLE
-  LIST_ENTRY          AllHandles;
-  /// List of PROTOCOL_INTERFACE's for this handle
-  LIST_ENTRY          Protocols;
-  UINTN               LocateRequest;
-  /// The Handle Database Key value when this handle was last created or modified
-  UINT64              Key;
-} IHANDLE;
-
-typedef struct {
-  UINTN               Signature;
-  /// Link Entry inserted to mProtocolDatabase
-  LIST_ENTRY          AllEntries;
-  /// ID of the protocol
-  EFI_GUID            ProtocolID;
-  /// All protocol interfaces
-  LIST_ENTRY          Protocols;
-  /// Registerd notification handlers
-  LIST_ENTRY          Notify;
-} PROTOCOL_ENTRY;
-
-typedef struct {
-  UINTN                       Signature;
-  /// Link on IHANDLE.Protocols
-  LIST_ENTRY                  Link;
-  /// Back pointer
-  IHANDLE                     *Handle;
-  /// Link on PROTOCOL_ENTRY.Protocols
-  LIST_ENTRY                  ByProtocol;
-  /// The protocol ID
-  PROTOCOL_ENTRY              *Protocol;
-  /// The interface value
-  VOID                        *Interface;
-  /// OPEN_PROTOCOL_DATA list
-  LIST_ENTRY                  OpenList;
-  UINTN                       OpenListCount;
-
-} PROTOCOL_INTERFACE;
-
-
-#define offsetof(a,b) ((INTN)(&(((a*)(0))->b)))
-
-#define container_of(ptr, type, member) ({                      \
-        const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
-        (type *)( (char *)__mptr - offsetof(type,member) );})
-
-EFI_STATUS
-EFIAPI
-UefiMain (
-  IN EFI_HANDLE        ImageHandle,
-  IN EFI_SYSTEM_TABLE  *SystemTable
-  )
-{
-  IHANDLE* MyHandle = ImageHandle;
-  Print(L"Signature: %c %c %c %c\n", (MyHandle->Signature >>  0) & 0xff,
-                                     (MyHandle->Signature >>  8) & 0xff,
-                                     (MyHandle->Signature >> 16) & 0xff,
-                                     (MyHandle->Signature >> 24) & 0xff);
-
-  Print(L"Back Protocol Interface Link: %p\n", MyHandle->Protocols.BackLink);
-  Print(L"Forward Protocol Interface Link: %p\n", MyHandle->Protocols.ForwardLink);
-
-  LIST_ENTRY *FirstLink = MyHandle->Protocols.ForwardLink;
-  LIST_ENTRY *CurrentLink = FirstLink;
-  do {
-  	PROTOCOL_INTERFACE* MyProtocolInterface = container_of(CurrentLink, PROTOCOL_INTERFACE, Link);
-
-        Print(L"\n");
-        Print(L"Current Link: %p\n", CurrentLink);
-  	Print(L"Signature: %x %x %x %x\n", (MyProtocolInterface->Signature >>  0) & 0xff,
-        	                           (MyProtocolInterface->Signature >>  8) & 0xff,
-                	                   (MyProtocolInterface->Signature >> 16) & 0xff,
-                        	           (MyProtocolInterface->Signature >> 24) & 0xff);
-
-  	Print(L"Back Link: %p\n", MyProtocolInterface->Link.BackLink);
-	Print(L"Forward Link: %p\n", MyProtocolInterface->Link.ForwardLink);
-	Print(L"GUID=%g\n", MyProtocolInterface->Protocol->ProtocolID);
-        CurrentLink = MyProtocolInterface->Link.ForwardLink;
-  } while (CurrentLink != FirstLink);
-
-  Print(L"________\n");
-  EFI_GUID **ProtocolGuidArray;
-  UINTN ArrayCount;
-  //EFI_STATUS Status = gBS->ProtocolsPerHandle(NULL,		// Use this to test %r Print formatting option
-  EFI_STATUS Status = gBS->ProtocolsPerHandle(ImageHandle,
-					      &ProtocolGuidArray,
-					      &ArrayCount);
-
-  if (!EFI_ERROR(Status)) {
-    for (int i=0; i<ArrayCount; i++) {
-      Print(L"%g\n", ProtocolGuidArray[i]);
-    }
-    FreePool(ProtocolGuidArray);
-  } else {
-    Print(L"ProtocolsPerHandle error: %r\n", Status);
-  }
-
-  return EFI_SUCCESS;
-}
diff --git a/Lesson_15/UefiLessonsPkg/ImageHandle/ImageHandle.inf b/Lesson_15/UefiLessonsPkg/ImageHandle/ImageHandle.inf
deleted file mode 100644
index 34256ee..0000000
--- a/Lesson_15/UefiLessonsPkg/ImageHandle/ImageHandle.inf
+++ /dev/null
@@ -1,18 +0,0 @@
-[Defines]
-  INF_VERSION                    = 1.25
-  BASE_NAME                      = ImageHandle
-  FILE_GUID                      = b68d3472-70c7-4928-841b-6566032e0a23
-  MODULE_TYPE                    = UEFI_APPLICATION
-  VERSION_STRING                 = 1.0
-  ENTRY_POINT                    = UefiMain
-
-[Sources]
-  ImageHandle.c
-
-[Packages]
-  MdePkg/MdePkg.dec
-
-[LibraryClasses]
-  UefiApplicationEntryPoint
-  UefiLib
-
diff --git a/Lesson_15/UefiLessonsPkg/ImageInfo/ImageInfo.c b/Lesson_15/UefiLessonsPkg/ImageInfo/ImageInfo.c
deleted file mode 100644
index c45570e..0000000
--- a/Lesson_15/UefiLessonsPkg/ImageInfo/ImageInfo.c
+++ /dev/null
@@ -1,44 +0,0 @@
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-
-#include <Protocol/LoadedImage.h>
-#include <Library/DevicePathLib.h>
-
-EFI_STATUS
-EFIAPI
-UefiMain (
-  IN EFI_HANDLE        ImageHandle,
-  IN EFI_SYSTEM_TABLE  *SystemTable
-  )
-{
-  EFI_STATUS Status;
-  EFI_LOADED_IMAGE_PROTOCOL* LoadedImage;
-
-  Status = gBS->HandleProtocol(
-    ImageHandle,
-    &gEfiLoadedImageProtocolGuid,
-    (VOID **) &LoadedImage
-  );
-
-  if (Status == EFI_SUCCESS) {
-    EFI_DEVICE_PATH_PROTOCOL* DevicePath;
-
-    Status = gBS->HandleProtocol(
-      ImageHandle,
-      &gEfiLoadedImageDevicePathProtocolGuid,
-      (VOID**) &DevicePath
-    );
-
-    if (Status == EFI_SUCCESS) {
-      Print(L"Image device: %s\n", ConvertDevicePathToText(DevicePath, FALSE, TRUE));
-      Print(L"Image file: %s\n",  ConvertDevicePathToText(LoadedImage->FilePath, FALSE, TRUE));	// EFI_DEVICE_PATH_PROTOCOL *FilePath
-      Print(L"Image Base: %X\n", LoadedImage->ImageBase);
-      Print(L"Image Size: %X\n", LoadedImage->ImageSize);
-    } else {
-      Print(L"Can't get EFI_LOADED_IMAGE_PROTOCOL, Status=%r\n", Status);
-    }
-  } else {
-    Print(L"Can't get EFI_DEVICE_PATH_PROTOCOL, Status=%r\n", Status);
-  }
-  return EFI_SUCCESS;
-}
diff --git a/Lesson_15/UefiLessonsPkg/ImageInfo/ImageInfo.inf b/Lesson_15/UefiLessonsPkg/ImageInfo/ImageInfo.inf
deleted file mode 100644
index 0ce54a6..0000000
--- a/Lesson_15/UefiLessonsPkg/ImageInfo/ImageInfo.inf
+++ /dev/null
@@ -1,22 +0,0 @@
-[Defines]
-  INF_VERSION                    = 1.25
-  BASE_NAME                      = ImageInfo
-  FILE_GUID                      = b68d3472-70c7-4928-841b-6566032e0a23
-  MODULE_TYPE                    = UEFI_APPLICATION
-  VERSION_STRING                 = 1.0
-  ENTRY_POINT                    = UefiMain
-
-[Sources]
-  ImageInfo.c
-
-[Packages]
-  MdePkg/MdePkg.dec
-
-[LibraryClasses]
-  UefiApplicationEntryPoint
-  UefiLib
-
-[Protocols]
-  gEfiLoadedImageProtocolGuid
-  gEfiLoadedImageDevicePathProtocolGuid
-
diff --git a/Lesson_15/UefiLessonsPkg/ListVariables/ListVariables.c b/Lesson_15/UefiLessonsPkg/ListVariables/ListVariables.c
deleted file mode 100644
index 1f3ef4a..0000000
--- a/Lesson_15/UefiLessonsPkg/ListVariables/ListVariables.c
+++ /dev/null
@@ -1,46 +0,0 @@
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-
-
-#include <Library/MemoryAllocationLib.h>
-#include <Library/UefiRuntimeServicesTableLib.h>
-
-INTN EFIAPI ShellAppMain(IN UINTN Argc, IN CHAR16 **Argv)
-{
-  EFI_GUID VendorGuid;
-  UINTN VariableNameSize = sizeof (CHAR16);
-  CHAR16* VariableName = AllocateZeroPool(sizeof(CHAR16));
-  if (VariableName == NULL) {
-    Print(L"Error on AllocateZeroPool call\n");
-    return EFI_OUT_OF_RESOURCES;
-  }
-
-  while (TRUE)
-  {
-    UINTN VariableNameSizeOld = VariableNameSize;
-    EFI_STATUS Status = gRT->GetNextVariableName(&VariableNameSize, VariableName, &VendorGuid);
-    if (Status == EFI_SUCCESS) {
-      Print(L"%g: %s\n", VendorGuid, VariableName);
-    } else if (Status == EFI_BUFFER_TOO_SMALL) {
-      VariableName = ReallocatePool(VariableNameSizeOld, VariableNameSize, VariableName);
-      if (VariableName == NULL) {
-        Print(L"Error on ReallocatePool call\n");
-        return EFI_OUT_OF_RESOURCES;
-      }
-      Status = gRT->GetNextVariableName(&VariableNameSize, VariableName, &VendorGuid);
-      if (Status == EFI_SUCCESS) {
-        Print(L"%g: %s\n", VendorGuid, VariableName);
-      } else {
-        Print(L"Error on 'gRT->GetNextVariableName' call: %s\n", Status);
-        return Status;
-      }
-    } else if (Status == EFI_NOT_FOUND) {
-      FreePool(VariableName);
-      return EFI_SUCCESS;
-    } else {
-      Print(L"Error on 'gRT->GetNextVariableName' call: %s\n", Status);
-      return Status;
-    }
-  }
-  return EFI_SUCCESS;
-}
diff --git a/Lesson_15/UefiLessonsPkg/ListVariables/ListVariables.inf b/Lesson_15/UefiLessonsPkg/ListVariables/ListVariables.inf
deleted file mode 100644
index 14e9fa2..0000000
--- a/Lesson_15/UefiLessonsPkg/ListVariables/ListVariables.inf
+++ /dev/null
@@ -1,19 +0,0 @@
-[Defines]
-  INF_VERSION                    = 1.25
-  BASE_NAME                      = ListVariables
-  FILE_GUID                      = d66f68b2-3591-45af-bf5d-519152b9d877
-  MODULE_TYPE                    = UEFI_APPLICATION
-  VERSION_STRING                 = 1.0
-  ENTRY_POINT                    = ShellCEntryLib
-
-[Sources]
-  ListVariables.c
-
-[Packages]
-  MdePkg/MdePkg.dec
-
-[LibraryClasses]
-  UefiApplicationEntryPoint
-  UefiLib
-  ShellCEntryLib
-
diff --git a/Lesson_15/UefiLessonsPkg/MemoryInfo/MemoryInfo.c b/Lesson_15/UefiLessonsPkg/MemoryInfo/MemoryInfo.c
deleted file mode 100644
index 8c3bcf2..0000000
--- a/Lesson_15/UefiLessonsPkg/MemoryInfo/MemoryInfo.c
+++ /dev/null
@@ -1,215 +0,0 @@
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-
-// for SetMem
-#include <Library/BaseMemoryLib.h>
-
-#include <Protocol/ShellParameters.h> 
-
-const CHAR16 *memory_types[] = { 
-    L"EfiReservedMemoryType", 
-    L"EfiLoaderCode", 
-    L"EfiLoaderData", 
-    L"EfiBootServicesCode", 
-    L"EfiBootServicesData", 
-    L"EfiRuntimeServicesCode", 
-    L"EfiRuntimeServicesData", 
-    L"EfiConventionalMemory", 
-    L"EfiUnusableMemory", 
-    L"EfiACPIReclaimMemory", 
-    L"EfiACPIMemoryNVS", 
-    L"EfiMemoryMappedIO", 
-    L"EfiMemoryMappedIOPortSpace", 
-    L"EfiPalCode",
-    L"EfiPersistentMemory",
-    L"EfiMaxMemoryType"
-};
-
-
-const CHAR16 *memory_types_OS_view[] = { 
-    L"reserved", // L"EfiReservedMemoryType", 
-    L"usable",   // L"EfiLoaderCode", 
-    L"usable",   // L"EfiLoaderData", 
-    L"usable",   // L"EfiBootServicesCode", 
-    L"usable",   // L"EfiBootServicesData", 
-    L"reserved", // L"EfiRuntimeServicesCode", 
-    L"reserved", // L"EfiRuntimeServicesData", 
-    L"usable",   // L"EfiConventionalMemory", 
-    L"reserved", // L"EfiUnusableMemory", 
-    L"ACPI data",// L"EfiACPIReclaimMemory", 
-    L"ACPI NVS", // L"EfiACPIMemoryNVS", 
-    L"reserved", // L"EfiMemoryMappedIO", 
-    L"reserved", // L"EfiMemoryMappedIOPortSpace", 
-    L"reserved", // L"EfiPalCode",
-    L"usable",   // L"EfiPersistentMemory",
-    L"usable",   // L"EfiMaxMemoryType"
-};
-
-
-const CHAR16 * 
-memory_type_to_str(UINT32 type) 
-{ 
-    if (type > sizeof(memory_types)/sizeof(CHAR16 *)) 
-        return L"Unknown"; 
-
-    return memory_types[type]; 
-}
-
-const CHAR16 *
-memory_type_to_str_OS_view(UINT32 type)
-{
-    if (type > sizeof(memory_types_OS_view)/sizeof(CHAR16 *)) 
-        return L"Unknown"; 
-
-    return memory_types_OS_view[type]; 
-}
-
-#define ATTRIBUTE_STR_SIZE 50
-
-#define CHECK_EFI_MEMORY_ATTRIBUTE(attr) if (attrs & EFI_MEMORY_##attr) { \
-                                           StrCpyS(&str[i], ATTRIBUTE_STR_SIZE, L" "#attr); \
-                                           i+=StrLen(L" "#attr); \
-                                         }
-
-const CHAR16 *
-memory_attrs_to_str(CHAR16* str, UINT64 attrs)
-{
-  int i=0;
-  SetMem((VOID *)str, sizeof(str), 0);
-
-  CHECK_EFI_MEMORY_ATTRIBUTE(UC)
-  CHECK_EFI_MEMORY_ATTRIBUTE(WC)
-  CHECK_EFI_MEMORY_ATTRIBUTE(WT)
-  CHECK_EFI_MEMORY_ATTRIBUTE(WB)
-  CHECK_EFI_MEMORY_ATTRIBUTE(UCE)
-  CHECK_EFI_MEMORY_ATTRIBUTE(WP)
-  CHECK_EFI_MEMORY_ATTRIBUTE(RP)
-  CHECK_EFI_MEMORY_ATTRIBUTE(XP)
-  CHECK_EFI_MEMORY_ATTRIBUTE(NV)
-  CHECK_EFI_MEMORY_ATTRIBUTE(MORE_RELIABLE)
-  CHECK_EFI_MEMORY_ATTRIBUTE(RO)
-  CHECK_EFI_MEMORY_ATTRIBUTE(SP)
-  CHECK_EFI_MEMORY_ATTRIBUTE(CPU_CRYPTO)
-  CHECK_EFI_MEMORY_ATTRIBUTE(RUNTIME)
-
-  return str;
-}
-
-EFI_STATUS
-EFIAPI
-UefiMain (
-  IN EFI_HANDLE        ImageHandle,
-  IN EFI_SYSTEM_TABLE  *SystemTable
-  )
-{
-  UINTN MemoryMapSize = 0;
-  EFI_MEMORY_DESCRIPTOR* MemoryMap = NULL;
-  UINTN MapKey;
-  UINTN DescriptorSize;
-  UINT32 DescriptorVersion;
-
-  EFI_STATUS Status;
-
-
-  EFI_SHELL_PARAMETERS_PROTOCOL* ShellParameters;
-
-  Status = gBS->HandleProtocol(
-    ImageHandle,
-    &gEfiShellParametersProtocolGuid,
-    (VOID **) &ShellParameters
-  );
-
-  BOOLEAN full=FALSE;
-  if (Status == EFI_SUCCESS) {
-    if (ShellParameters->Argc == 2) {
-      if (!StrCmp(ShellParameters->Argv[1], L"full")) {
-        full=TRUE;
-      }
-    }
-  }
-
-
-  Status = gBS->GetMemoryMap(
-        &MemoryMapSize,
-        MemoryMap,
-        &MapKey,
-        &DescriptorSize,
-        &DescriptorVersion
-  );
-
-  if (Status == EFI_BUFFER_TOO_SMALL) {
-    Status = gBS->AllocatePool(
-          EfiBootServicesData,
-          MemoryMapSize,
-          (void**)&MemoryMap
-    );
-
-    if (EFI_ERROR(Status)) {
-      Print(L"AllocatePool error: %r\n", Status);
-      return Status;
-    }
-
-    Status = gBS->GetMemoryMap(
-          &MemoryMapSize,
-          MemoryMap,
-          &MapKey,
-          &DescriptorSize,
-          &DescriptorVersion
-    );
-
-    if (!EFI_ERROR(Status))
-    {
-      EFI_MEMORY_DESCRIPTOR* desc = MemoryMap;
-      EFI_MEMORY_DESCRIPTOR* next_desc;
-      int i = 0;
-      while ((UINT8 *)desc < (UINT8 *)MemoryMap + MemoryMapSize) {
-        UINTN PAGE_SIZE = 4096;
-        UINTN mapping_size =(UINTN) desc->NumberOfPages * PAGE_SIZE;
-
-        UINT64 Start = desc->PhysicalStart;
-
-        next_desc = (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)desc + DescriptorSize);
-        if (!full) {
-	  while ((UINT8 *)next_desc < (UINT8 *)MemoryMap + MemoryMapSize) {
-	    mapping_size =(UINTN) desc->NumberOfPages * PAGE_SIZE;
-	    if ((desc->PhysicalStart + mapping_size) == (next_desc->PhysicalStart)) {
-
-              if (desc->Type != next_desc->Type) {
-                if (StrCmp(memory_type_to_str_OS_view(desc->Type), 
-                           memory_type_to_str_OS_view(next_desc->Type)))
-                  break;
-                }
-
-                desc=next_desc;
-	        next_desc = (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)next_desc + DescriptorSize);
-	    } else {
-	        break;
-	    }
-	  }
-        }
-
-        if (full) {
-          CHAR16 str[ATTRIBUTE_STR_SIZE];
-          Print(L"[#%02d] Type: %s  Attr: %s\n", i++, 
-            memory_type_to_str(desc->Type), memory_attrs_to_str(str, desc->Attribute));
-          Print(L"      Phys: %016llx-%016llx\n", Start, Start + mapping_size - 1);
-        }
-        else {
-          Print(L" [mem: %016llx-%016llx] %s\n", Start, desc->PhysicalStart + mapping_size - 1,
-            memory_type_to_str_OS_view(desc->Type) );
-        }
-
-        desc = next_desc;
-      }
-
-      gBS->FreePool(MemoryMap);
-    } else {
-      Print(L"GetMemoryMap with buffer error: %r\n", Status);
-    }
-  } else {
-    Print(L"GetMemoryMap without buffer error: %r\n", Status);
-  }
-
-  return Status;
-}
-
diff --git a/Lesson_15/UefiLessonsPkg/MemoryInfo/MemoryInfo.inf b/Lesson_15/UefiLessonsPkg/MemoryInfo/MemoryInfo.inf
deleted file mode 100644
index 777010d..0000000
--- a/Lesson_15/UefiLessonsPkg/MemoryInfo/MemoryInfo.inf
+++ /dev/null
@@ -1,21 +0,0 @@
-[Defines]
-  INF_VERSION                    = 1.25
-  BASE_NAME                      = MemoryInfo
-  FILE_GUID                      = d2ce1d65-603e-4b48-b3e1-fe65d5d0bca8
-  MODULE_TYPE                    = UEFI_APPLICATION
-  VERSION_STRING                 = 1.0
-  ENTRY_POINT                    = UefiMain
-
-[Sources]
-  MemoryInfo.c
-
-[Packages]
-  MdePkg/MdePkg.dec
-
-[LibraryClasses]
-  UefiApplicationEntryPoint
-  UefiLib
-
-[Protocols]
-  gEfiShellParametersProtocolGuid
-
diff --git a/Lesson_15/UefiLessonsPkg/ShowBootVariables/ShowBootVariables.c b/Lesson_15/UefiLessonsPkg/ShowBootVariables/ShowBootVariables.c
deleted file mode 100644
index 7f6b58c..0000000
--- a/Lesson_15/UefiLessonsPkg/ShowBootVariables/ShowBootVariables.c
+++ /dev/null
@@ -1,93 +0,0 @@
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-
-#include <Library/MemoryAllocationLib.h>
-#include <Library/UefiRuntimeServicesTableLib.h>
-
-#include <Library/DevicePathLib.h>
-#include <Library/PrintLib.h>
-
-
-EFI_STATUS
-GetNvramVariable( CHAR16   *VariableName,
-                  EFI_GUID *VariableOwnerGuid, 
-                  VOID     **Buffer,
-                  UINTN    *BufferSize)
-{
-    UINTN Size = 0;
-    *BufferSize = 0;
-
-    EFI_STATUS Status = gRT->GetVariable(VariableName, VariableOwnerGuid, NULL, &Size, NULL);
-    if (Status != EFI_BUFFER_TOO_SMALL) {
-        Print(L"Error! 'gRT->GetVariable' call returned %r\n", Status);
-        return Status;
-    }
-
-    *Buffer = AllocateZeroPool(Size);
-    if (!Buffer) {
-        Print(L"Error! 'AllocateZeroPool' call returned %r\n", Status);
-        return EFI_OUT_OF_RESOURCES;
-    }
-
-    Status = gRT->GetVariable(VariableName, VariableOwnerGuid, NULL, &Size, *Buffer);
-    if (Status == EFI_SUCCESS) {
-        *BufferSize = Size;
-    } else {
-        FreePool( *Buffer );
-        *Buffer = NULL;
-    }
-
-    return Status;
-}
-
-
-VOID PrintBootOption(CHAR16* BootOptionName)
-{
-  UINTN OptionSize;
-  UINT8* Buffer;
- 
-  EFI_STATUS Status = GetNvramVariable(BootOptionName, &gEfiGlobalVariableGuid, (VOID**)&Buffer, &OptionSize);
-  if (Status == EFI_SUCCESS) {
-      EFI_LOAD_OPTION* LoadOption = (EFI_LOAD_OPTION*) Buffer;
-      CHAR16* Description = (CHAR16*)(Buffer + sizeof (EFI_LOAD_OPTION));
-      UINTN DescriptionSize = StrSize(Description);
-
-      Print(L"%s\n", Description);
-      if (LoadOption->FilePathListLength != 0) {
-        VOID* FilePathList = (UINT8 *)Description + DescriptionSize;
-        CHAR16* DevPathString = ConvertDevicePathToText(FilePathList, TRUE, FALSE);
-        Print(L"%s\n", DevPathString);
-      }
-  } else {
-    Print(L"Can't get %s variable\n", BootOptionName);
-  }
-}
-
-
-INTN EFIAPI ShellAppMain(IN UINTN Argc, IN CHAR16 **Argv)
-{
-  UINTN OptionSize;
-  EFI_STATUS Status;
-
-  UINT16* BootCurrent;
-  Status = GetNvramVariable(L"BootCurrent", &gEfiGlobalVariableGuid, (VOID**)&BootCurrent, &OptionSize);
-  if (Status != EFI_SUCCESS) {
-    Print(L"Can't get BootCurrent variable\n");
-  }
-
-  UINT16* BootOrderArray;
-  Status = GetNvramVariable(L"BootOrder", &gEfiGlobalVariableGuid, (VOID**)&BootOrderArray, &OptionSize);
-  if (Status == EFI_SUCCESS) {
-    for (UINTN i=0; i<(OptionSize/sizeof(UINT16)); i++) {
-      CHAR16 BootOptionStr[sizeof("Boot####")+1];
-      UnicodeSPrint(BootOptionStr, (sizeof("Boot####")+1)*sizeof(CHAR16), L"Boot%04x", BootOrderArray[i]);
-      Print(L"%s%s\n", BootOptionStr, (BootOrderArray[i] == *BootCurrent)? L"*" : L"" );
-      PrintBootOption(BootOptionStr);
-      Print(L"\n");
-    }
-  } else {
-    Print(L"Can't get BootOrder variable\n");
-  }
-
-  return EFI_SUCCESS;
-}
diff --git a/Lesson_15/UefiLessonsPkg/ShowBootVariables/ShowBootVariables.inf b/Lesson_15/UefiLessonsPkg/ShowBootVariables/ShowBootVariables.inf
deleted file mode 100644
index d2cfba9..0000000
--- a/Lesson_15/UefiLessonsPkg/ShowBootVariables/ShowBootVariables.inf
+++ /dev/null
@@ -1,19 +0,0 @@
-[Defines]
-  INF_VERSION                    = 1.25
-  BASE_NAME                      = ShowBootVariables
-  FILE_GUID                      = 31266d12-9c60-478e-905e-05d117a3a9df
-  MODULE_TYPE                    = UEFI_APPLICATION
-  VERSION_STRING                 = 1.0
-  ENTRY_POINT                    = ShellCEntryLib
-
-[Sources]
-  ShowBootVariables.c
-
-[Packages]
-  MdePkg/MdePkg.dec
-
-[LibraryClasses]
-  UefiApplicationEntryPoint
-  UefiLib
-  ShellCEntryLib
-
diff --git a/Lesson_15/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.c b/Lesson_15/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.c
deleted file mode 100644
index b13aa6c..0000000
--- a/Lesson_15/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.c
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-
-INTN EFIAPI ShellAppMain(IN UINTN Argc, IN CHAR16 **Argv)
-{
-//  SystemTable->ConOut->OutputString(SystemTable->ConOut, L"Hello World!\n");
-  gST->ConOut->OutputString(gST->ConOut, L"Hello again!\n");
-  Print(L"Bye!\n");
-
-  for (UINTN i=Argc; i>0; i--) {
-    Print(L"Arg[%d]=%s\n", Argc-i, Argv[Argc-i]);
-  }
-  return 0;
-}
diff --git a/Lesson_15/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.inf b/Lesson_15/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.inf
deleted file mode 100644
index 013bf4e..0000000
--- a/Lesson_15/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.inf
+++ /dev/null
@@ -1,19 +0,0 @@
-[Defines]
-  INF_VERSION                    = 1.25
-  BASE_NAME                      = SimpleShellApp
-  FILE_GUID                      = 2afd1202-545e-4f8d-b8fb-bc179e84ddc8
-  MODULE_TYPE                    = UEFI_APPLICATION
-  VERSION_STRING                 = 1.0
-  ENTRY_POINT                    = ShellCEntryLib
-
-[Sources]
-  SimpleShellApp.c
-
-[Packages]
-  MdePkg/MdePkg.dec
-
-[LibraryClasses]
-  UefiApplicationEntryPoint
-  UefiLib
-  ShellCEntryLib
-
diff --git a/Lesson_15/UefiLessonsPkg/SimplestApp/SimplestApp.c b/Lesson_15/UefiLessonsPkg/SimplestApp/SimplestApp.c
deleted file mode 100644
index 8bdf500..0000000
--- a/Lesson_15/UefiLessonsPkg/SimplestApp/SimplestApp.c
+++ /dev/null
@@ -1,10 +0,0 @@
-EFI_STATUS
-EFIAPI
-UefiMain (
-  IN EFI_HANDLE        ImageHandle,
-  IN EFI_SYSTEM_TABLE  *SystemTable
-  )
-{
-  return EFI_SUCCESS;
-}
-
diff --git a/Lesson_15/UefiLessonsPkg/SimplestApp/SimplestApp.inf b/Lesson_15/UefiLessonsPkg/SimplestApp/SimplestApp.inf
deleted file mode 100644
index 7d4bae2..0000000
--- a/Lesson_15/UefiLessonsPkg/SimplestApp/SimplestApp.inf
+++ /dev/null
@@ -1,16 +0,0 @@
-[Defines]
-  INF_VERSION                    = 1.25
-  BASE_NAME                      = SimplestApp
-  FILE_GUID                      = 4a298956-fbe0-47fb-ae3a-2d5a0a959a26
-  MODULE_TYPE                    = UEFI_APPLICATION
-  VERSION_STRING                 = 1.0
-  ENTRY_POINT                    = UefiMain
-
-[Sources]
-  SimplestApp.c
-
-[Packages]
-  MdePkg/MdePkg.dec
-
-[LibraryClasses]
-  UefiApplicationEntryPoint
diff --git a/Lesson_15/UefiLessonsPkg/UefiLessonsPkg.dsc b/Lesson_15/UefiLessonsPkg/UefiLessonsPkg.dsc
deleted file mode 100644
index 5a3ae1c..0000000
--- a/Lesson_15/UefiLessonsPkg/UefiLessonsPkg.dsc
+++ /dev/null
@@ -1,36 +0,0 @@
-[Defines]
-  DSC_SPECIFICATION              = 0x0001001C
-  PLATFORM_GUID                  = 3db7270f-ffac-4139-90a4-0ae68f3f8167
-  PLATFORM_VERSION               = 0.01
-  PLATFORM_NAME                  = UefiLessonsPkg
-  SKUID_IDENTIFIER               = DEFAULT
-  SUPPORTED_ARCHITECTURES        = X64
-  BUILD_TARGETS                  = RELEASE
-
-
-[LibraryClasses]
-  UefiApplicationEntryPoint|MdePkg/Library/UefiApplicationEntryPoint/UefiApplicationEntryPoint.inf
-  UefiBootServicesTableLib|MdePkg/Library/UefiBootServicesTableLib/UefiBootServicesTableLib.inf
-  DebugLib|MdePkg/Library/UefiDebugLibConOut/UefiDebugLibConOut.inf
-  BaseLib|MdePkg/Library/BaseLib/BaseLib.inf
-  PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
-  BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
-  RegisterFilterLib|MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf
-  PrintLib|MdePkg/Library/BasePrintLib/BasePrintLib.inf
-  DebugPrintErrorLevelLib|MdePkg/Library/BaseDebugPrintErrorLevelLib/BaseDebugPrintErrorLevelLib.inf
-  UefiLib|MdePkg/Library/UefiLib/UefiLib.inf
-  MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemoryAllocationLib.inf
-  DevicePathLib|MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.inf
-  UefiRuntimeServicesTableLib|MdePkg/Library/UefiRuntimeServicesTableLib/UefiRuntimeServicesTableLib.inf
-  ShellCEntryLib|ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.inf
-
-[Components]
-  UefiLessonsPkg/SimplestApp/SimplestApp.inf
-  UefiLessonsPkg/HelloWorld/HelloWorld.inf
-  UefiLessonsPkg/ImageHandle/ImageHandle.inf
-  UefiLessonsPkg/ImageInfo/ImageInfo.inf
-  UefiLessonsPkg/MemoryInfo/MemoryInfo.inf
-  UefiLessonsPkg/SimpleShellApp/SimpleShellApp.inf
-  UefiLessonsPkg/ListVariables/ListVariables.inf
-  UefiLessonsPkg/ShowBootVariables/ShowBootVariables.inf
-