Move lessons to separate folder

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

1 files changed, 0 insertions, 243 deletions

diff --git a/Lesson_06/README.md b/Lesson_06/README.md
deleted file mode 100644
index 3bd7b83..0000000
--- a/Lesson_06/README.md
+++ /dev/null
@@ -1,243 +0,0 @@
-Let's create `ImageHandle` app in our `UefiLessonsPkg`.
-
-First generate a random GUID.
-```
-$ uuidgen
-b68d3472-70c7-4928-841b-6566032e0a23
-```
-
-And then create *.inf and *.c file based on the code in our `HelloWorld` app:
-```
-$ cat UefiLessonsPkg/ImageHandle/ImageHandle.inf
-[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
-```
-```
-$ cat UefiLessonsPkg/ImageHandle/ImageHandle.c
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-
-EFI_STATUS
-EFIAPI
-UefiMain (
-  IN EFI_HANDLE        ImageHandle,
-  IN EFI_SYSTEM_TABLE  *SystemTable
-  )
-{
-  return EFI_SUCCESS;
-}
-```
-Add a newly created app to our `UefiLessonsPkg/UefiLessonsPkg.dsc` file:
-```
-[Components]
-  ...
-+ UefiLessonsPkg/ImageHandle/ImageHandle.inf
-```
-
-Now let's get to work.
-
-Our main function in a *.c file has 2 input parameters `EFI_HANDLE ImageHandle` and `EFI_SYSTEM_TABLE *SystemTable`:
-```
-UefiMain (
-  IN EFI_HANDLE        ImageHandle,
-  IN EFI_SYSTEM_TABLE  *SystemTable
-  )
-```
-We've already started to explore the `EFI_SYSTEM_TABLE`. In this lesson let's look what `ImageHandle` is about.
-
-`ImageHandle` parameter is a handle of an image for the program itself.
-
-You can found a definition for a `EFI_HANDLE` type in a https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Uefi/UefiBaseType.h
-```
-///
-/// A collection of related interfaces.
-///
-typedef VOID                      *EFI_HANDLE;
-```
-So it is simply a pointer to a void. So it could be a pointer to anything.
-
-In a reality it is a pointer to this type of structure https://github.com/tianocore/edk2/blob/master/MdeModulePkg/Core/Dxe/Hand/Handle.h :
-```
-#define EFI_HANDLE_SIGNATURE            SIGNATURE_32('h','n','d','l')
-
-///
-/// IHANDLE - contains a list of protocol handles
-///
-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;
-```
-LIST_ENTRY is a double linked list. So with it we can traverse to any handle in the system. Sometimes it is called the Handle database.
-
-In case you wonder how LIST_ENTRY is defined look at the https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Base.h :
-```
-///
-/// LIST_ENTRY structure definition.
-///
-typedef struct _LIST_ENTRY LIST_ENTRY;
-
-///
-/// _LIST_ENTRY structure definition.
-///
-struct _LIST_ENTRY {
-  LIST_ENTRY  *ForwardLink;
-  LIST_ENTRY  *BackLink;
-};
-```
-Each handle has a list of protocols attached to it. Protocol is like an interface - a set of functions and data fields. To track the list of protocols attached to a handle this field is used:
-```
-   /// List of PROTOCOL_INTERFACE's for this handle
-   LIST_ENTRY          Protocols;
-```
-It is another double linked list that points to these structures:
-```
-#define PROTOCOL_INTERFACE_SIGNATURE  SIGNATURE_32('p','i','f','c')
-
-///
-/// PROTOCOL_INTERFACE - each protocol installed on a handle is tracked
-/// with a protocol interface structure
-///
-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;
-```
-
-Effectively PROTOCOL_INTERFACE structure is only a proxy that points to an actual PROTOCOL_ENTRY structrure which are exist in a separate protocol database.
-```
-#define PROTOCOL_ENTRY_SIGNATURE        SIGNATURE_32('p','r','t','e')
-
-///
-/// PROTOCOL_ENTRY - each different protocol has 1 entry in the protocol
-/// database.  Each handler that supports this protocol is listed, along
-/// with a list of registered notifies.
-///
-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;
-```
-It all sounds a little bit complicated so it is better to see it in a picture:
-![Handle_Protocol_databases_scheme](Handle_Protocol_databases_scheme.jpg?raw=true "Handle/Protocol databases scheme")
-Important information from the picture:
-- HANDLE 0 has PROTOCOL_INTERFACE 0 (->PROTOCOL_ENTRY 0) and PROTOCOL_INTERFACE 1 (->PROTOCOL_ENTRY 1)
-- HANDLE 1 has PROTOCOL_INTERFACE 2 (->PROTOCOL_ENTRY 2) and PROTOCOL_INTERFACE 3 (->PROTOCOL_ENTRY 1)
-- HANDLE 2 has PROTOCOL_INTERFACE 4 (->PROTOCOL_ENTRY 1)
-Besides that:
-- All handles are interconnected with the help of `AllHandles` field in each `IHANDLE` structure
-- All protocols are interconnected with the help of `AllEntries` field in each `PROTOCOL_ENTRY` structure
-Red lines:
-- Each handle has a double linked list of all its PROTOCOL_INTERFACES, which internally connected to each other through the `Link` field
-Green lines:
-- Each protocol entry effectively knows all the users (=PROTOCOL_INTERFACES) of it.
-
-Let's check that `EFI_HANDLE ImageHandle` effectively is the `IHANDLE` structure.
-
-To check this we will cast `ImageHandle` to `IHANDLE` and print its signature.
-
-```
-#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;
-
-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);
-
-  return EFI_SUCCESS;
-}
-```
-
-Don't blame me for redefinition of `IHANDLE` structure. These structures (IHANDLE/PROTOCOL_ENTRY/PROTOCOL_INTERFACE) are private and not intended to be used outside of the `MdeModulePkg`. Even https://github.com/tianocore/edk2/blob/master/StandaloneMmPkg/Core/StandaloneMmCore.h redifines IHANDLE/PROTOCOL_ENTRY/PROTOCOL_INTERFACE.
-
-```
-$ . edksetup.sh
-$ build
-$ cp Build/UefiLessonsPkg/RELEASE_GCC5/X64/ImageHandle.efi ~/UEFI_disk/
-$ 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 \
-                     -net none
-```
-
-```
-UEFI Interactive Shell v2.2
-EDK II
-UEFI v2.70 (EDK II, 0x00010000)
-Mapping table
-      FS0: Alias(s):HD0a1:;BLK1:
-          PciRoot(0x0)/Pci(0x1,0x1)/Ata(0x0)/HD(1,MBR,0xBE1AFDFA,0x3F,0xFBFC1)
-     BLK0: Alias(s):
-          PciRoot(0x0)/Pci(0x1,0x1)/Ata(0x0)
-     BLK2: Alias(s):
-          PciRoot(0x0)/Pci(0x1,0x1)/Ata(0x0)
-Press ESC in 4 seconds to skip startup.nsh or any other key to continue.
-Shell> fs0:
-FS0:\> ImageHandle.efi
-Signature: h n d l
-```
-
-
-