14 files changed, 0 insertions, 771 deletions
diff --git a/Lesson_12/Conf/target.txt b/Lesson_12/Conf/target.txt
deleted file mode 100644
index c109dcf..0000000
--- a/Lesson_12/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_12/README.md b/Lesson_12/README.md
deleted file mode 100644
index 727d300..0000000
--- a/Lesson_12/README.md
+++ /dev/null
@@ -1,247 +0,0 @@
-Let's investigate final protocol that was attached to our `ImageHandle` - `EFI_SHELL_PARAMETERS_PROTOCOL`
-
-https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Protocol/ShellParameters.h
-```
-typedef struct _EFI_SHELL_PARAMETERS_PROTOCOL {
-  ///
-  /// Points to an Argc-element array of points to NULL-terminated strings containing
-  /// the command-line parameters. The first entry in the array is always the full file
-  /// path of the executable. Any quotation marks that were used to preserve
-  /// whitespace have been removed.
-  ///
-  CHAR16 **Argv;
-
-  ///
-  /// The number of elements in the Argv array.
-  ///
-  UINTN Argc;
-
-  ///
-  /// The file handle for the standard input for this executable. This may be different
-  /// from the ConInHandle in EFI_SYSTEM_TABLE.
-  ///
-  SHELL_FILE_HANDLE StdIn;
-
-  ///
-  /// The file handle for the standard output for this executable. This may be different
-  /// from the ConOutHandle in EFI_SYSTEM_TABLE.
-  ///
-  SHELL_FILE_HANDLE StdOut;
-
-  ///
-  /// The file handle for the standard error output for this executable. This may be
-  /// different from the StdErrHandle in EFI_SYSTEM_TABLE.
-  ///
-  SHELL_FILE_HANDLE StdErr;
-} EFI_SHELL_PARAMETERS_PROTOCOL;
-```
-
-As we see, we can access command line arguments that was passed to our program through this protocol.
-Let's use it in our `MemoryInfo` program.
-
-In the last lesson we've printed our EFI memory map. It had >100 entries.
-When you boot Linux kernel, you can see some info about the current memory map, but this table is much shorter. It happens because of two facts:
-- Kernel differentiate EFI memory types much less granular. Instead of `EfiReservedMemoryType`/`EfiLoaderCode`/`EfiLoaderData`/...` it simply has only 4 types: `usable`/`ACPI NVS`/`ACPI data`/`reserved`
-- Kernel glues adjacent regions together
-
-
-I've generated kernel image for EFI x86-64 with buildroot:
-```
-cd ~
-git clone https://github.com/buildroot/buildroot.git
-cd buildroot
-make pc_x86_64_efi_defconfig
-make
-```
-
-If we try to boot this kernel with:
-```
-qemu-system-x86_64 -drive if=pflash,format=raw,file=Build/OvmfX64/RELEASE_GCC5/FV/OVMF.fd
-                   -drive format=raw,file=fat:rw:~/UEFI_disk
-                   -nographic
-                   -kernel ~/buildroot/output/images/bzImage
-                   -append "console=ttyS0"
-```
-
-In kernel boot log we can see:
-```
-BIOS-provided physical RAM map:
-BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable
-BIOS-e820: [mem 0x0000000000100000-0x00000000007fffff] usable
-BIOS-e820: [mem 0x0000000000800000-0x0000000000807fff] ACPI NVS
-BIOS-e820: [mem 0x0000000000808000-0x000000000080ffff] usable
-BIOS-e820: [mem 0x0000000000810000-0x00000000008fffff] ACPI NVS
-BIOS-e820: [mem 0x0000000000900000-0x00000000078eefff] usable
-BIOS-e820: [mem 0x00000000078ef000-0x0000000007b6efff] reserved
-BIOS-e820: [mem 0x0000000007b6f000-0x0000000007b7efff] ACPI data
-BIOS-e820: [mem 0x0000000007b7f000-0x0000000007bfefff] ACPI NVS
-BIOS-e820: [mem 0x0000000007bff000-0x0000000007ef3fff] usable
-BIOS-e820: [mem 0x0000000007ef4000-0x0000000007f77fff] reserved
-BIOS-e820: [mem 0x0000000007f78000-0x0000000007ffffff] ACPI NVS
-BIOS-e820: [mem 0x00000000ffc00000-0x00000000ffffffff] reserved
-```
-
-Let's modify our `MemoryInfo` program:
-- if `full` option is passed, we print memory map as we do now
-- if no option is passed, we print memory map in a "Linux kernel way"
-
-First, add `full` boolean flag. If argument "full" is passed to our program, we'll set this flag, else it would be equal to `false`.
-```
-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;
-    }
-  }
-}
-```
-
-To use `EFI_SHELL_PARAMETERS_PROTOCOL` we need to add include file:
-```
-#include <Protocol/ShellParameters.h>
-```
-And add GUID to the application *.inf file:
-```
-[Protocols]
-  gEfiShellParametersProtocolGuid
-```
-
-Now to the next problem. Create a function for OS memory type mapping:
-```
-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_OS_view(UINT32 type)
-{
-    if (type > sizeof(memory_types_OS_view)/sizeof(CHAR16 *))
-        return L"Unknown";
-
-    return memory_types_OS_view[type];
-}
-```
-
-And finally we need to modify our program to glue adjacent regions with the same type together if the `full` flag is not set:
-```
-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;
-}
-```
-
-Build program and copy it to UEFI folder.
-If we run in with the `full` option, everything would be like the last time:
-```
-FS0:\> MemoryInfo.efi full
-[#00] Type: EfiBootServicesCode  Attr:  UC WC WT WB
-      Phys: 0000000000000000-0000000000000FFF
-[#01] Type: EfiConventionalMemory  Attr:  UC WC WT WB
-      Phys: 0000000000001000-000000000009FFFF
-[#02] Type: EfiConventionalMemory  Attr:  UC WC WT WB
-      Phys: 0000000000100000-00000000007FFFFF
-[#03] Type: EfiACPIMemoryNVS  Attr:  UC WC WT WB
-      Phys: 0000000000800000-0000000000807FFF
-[#04] Type: EfiConventionalMemory  Attr:  UC WC WT WB
-      Phys: 0000000000808000-000000000080FFFF
-[#05] Type: EfiACPIMemoryNVS  Attr:  UC WC WT WB
-      Phys: 0000000000810000-00000000008FFFFF
-...
-```
-
-But if we run it without the `full` option, we will get a map similar to the that kernel displays in its boot log:
-```
-FS0:\> MemoryInfo.efi
- [mem: 0000000000000000-000000000009FFFF] usable
- [mem: 0000000000100000-00000000007FFFFF] usable
- [mem: 0000000000800000-0000000000807FFF] ACPI NVS
- [mem: 0000000000808000-000000000080FFFF] usable
- [mem: 0000000000810000-00000000008FFFFF] ACPI NVS
- [mem: 0000000000900000-00000000078EEFFF] usable
- [mem: 00000000078EF000-0000000007B6EFFF] reserved
- [mem: 0000000007B6F000-0000000007B7EFFF] ACPI data
- [mem: 0000000007B7F000-0000000007BFEFFF] ACPI NVS
- [mem: 0000000007BFF000-0000000007EF3FFF] usable
- [mem: 0000000007EF4000-0000000007F77FFF] reserved
- [mem: 0000000007F78000-0000000007FFFFFF] ACPI NVS
- [mem: 00000000FFC00000-00000000FFFFFFFF] reserved
-```
-Compare it with the actual kernel output:
-```
-BIOS-provided physical RAM map:
-BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable
-BIOS-e820: [mem 0x0000000000100000-0x00000000007fffff] usable
-BIOS-e820: [mem 0x0000000000800000-0x0000000000807fff] ACPI NVS
-BIOS-e820: [mem 0x0000000000808000-0x000000000080ffff] usable
-BIOS-e820: [mem 0x0000000000810000-0x00000000008fffff] ACPI NVS
-BIOS-e820: [mem 0x0000000000900000-0x00000000078eefff] usable
-BIOS-e820: [mem 0x00000000078ef000-0x0000000007b6efff] reserved
-BIOS-e820: [mem 0x0000000007b6f000-0x0000000007b7efff] ACPI data
-BIOS-e820: [mem 0x0000000007b7f000-0x0000000007bfefff] ACPI NVS
-BIOS-e820: [mem 0x0000000007bff000-0x0000000007ef3fff] usable
-BIOS-e820: [mem 0x0000000007ef4000-0x0000000007f77fff] reserved
-BIOS-e820: [mem 0x0000000007f78000-0x0000000007ffffff] ACPI NVS
-BIOS-e820: [mem 0x00000000ffc00000-0x00000000ffffffff] reserved
-```
diff --git a/Lesson_12/UefiLessonsPkg/HelloWorld/HelloWorld.c b/Lesson_12/UefiLessonsPkg/HelloWorld/HelloWorld.c
deleted file mode 100644
index 1f05899..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/HelloWorld/HelloWorld.inf b/Lesson_12/UefiLessonsPkg/HelloWorld/HelloWorld.inf
deleted file mode 100644
index d65ca2e..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/ImageHandle/ImageHandle.c b/Lesson_12/UefiLessonsPkg/ImageHandle/ImageHandle.c
deleted file mode 100644
index 32e9c43..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/ImageHandle/ImageHandle.inf b/Lesson_12/UefiLessonsPkg/ImageHandle/ImageHandle.inf
deleted file mode 100644
index 34256ee..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/ImageInfo/ImageInfo.c b/Lesson_12/UefiLessonsPkg/ImageInfo/ImageInfo.c
deleted file mode 100644
index c45570e..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/ImageInfo/ImageInfo.inf b/Lesson_12/UefiLessonsPkg/ImageInfo/ImageInfo.inf
deleted file mode 100644
index 0ce54a6..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/MemoryInfo/MemoryInfo.c b/Lesson_12/UefiLessonsPkg/MemoryInfo/MemoryInfo.c
deleted file mode 100644
index 8c3bcf2..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/MemoryInfo/MemoryInfo.inf b/Lesson_12/UefiLessonsPkg/MemoryInfo/MemoryInfo.inf
deleted file mode 100644
index 777010d..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/SimplestApp/SimplestApp.c b/Lesson_12/UefiLessonsPkg/SimplestApp/SimplestApp.c
deleted file mode 100644
index 8bdf500..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/SimplestApp/SimplestApp.inf b/Lesson_12/UefiLessonsPkg/SimplestApp/SimplestApp.inf
deleted file mode 100644
index 7d4bae2..0000000
--- a/Lesson_12/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_12/UefiLessonsPkg/UefiLessonsPkg.dsc b/Lesson_12/UefiLessonsPkg/UefiLessonsPkg.dsc
deleted file mode 100644
index 09f38ea..0000000
--- a/Lesson_12/UefiLessonsPkg/UefiLessonsPkg.dsc
+++ /dev/null
@@ -1,33 +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
-
-[Components]
-  UefiLessonsPkg/SimplestApp/SimplestApp.inf
-  UefiLessonsPkg/HelloWorld/HelloWorld.inf
-  UefiLessonsPkg/ImageHandle/ImageHandle.inf
-  UefiLessonsPkg/ImageInfo/ImageInfo.inf
-  UefiLessonsPkg/MemoryInfo/MemoryInfo.inf
-
-
diff --git a/Lesson_12/bzImage b/Lesson_12/bzImage
deleted file mode 100644
index 80c73e2..0000000
--- a/Lesson_12/bzImage
+++ /dev/null