From 6064c1e48b622f53538f4df9bdd402c607a87d51 Mon Sep 17 00:00:00 2001
From: Konstantin Aladyshev <aladyshev22@gmail.com>
Date: Sat, 10 Jul 2021 00:04:40 +0300
Subject: Move lessons to separate folder
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
---
Lessons/Lesson_13/README.md | 137 +++++++++++++
.../UefiLessonsPkg/HelloWorld/HelloWorld.c | 15 ++
.../UefiLessonsPkg/HelloWorld/HelloWorld.inf | 18 ++
.../UefiLessonsPkg/ImageHandle/ImageHandle.c | 105 ++++++++++
.../UefiLessonsPkg/ImageHandle/ImageHandle.inf | 18 ++
.../Lesson_13/UefiLessonsPkg/ImageInfo/ImageInfo.c | 44 +++++
.../UefiLessonsPkg/ImageInfo/ImageInfo.inf | 22 +++
.../UefiLessonsPkg/MemoryInfo/MemoryInfo.c | 215 +++++++++++++++++++++
.../UefiLessonsPkg/MemoryInfo/MemoryInfo.inf | 21 ++
.../UefiLessonsPkg/SimpleShellApp/SimpleShellApp.c | 14 ++
.../SimpleShellApp/SimpleShellApp.inf | 19 ++
.../UefiLessonsPkg/SimplestApp/SimplestApp.c | 10 +
.../UefiLessonsPkg/SimplestApp/SimplestApp.inf | 16 ++
.../Lesson_13/UefiLessonsPkg/UefiLessonsPkg.dsc | 35 ++++
14 files changed, 689 insertions(+)
create mode 100644 Lessons/Lesson_13/README.md
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/HelloWorld/HelloWorld.c
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/HelloWorld/HelloWorld.inf
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/ImageHandle/ImageHandle.c
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/ImageHandle/ImageHandle.inf
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/ImageInfo/ImageInfo.c
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/ImageInfo/ImageInfo.inf
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/MemoryInfo/MemoryInfo.c
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/MemoryInfo/MemoryInfo.inf
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.c
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.inf
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/SimplestApp/SimplestApp.c
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/SimplestApp/SimplestApp.inf
create mode 100644 Lessons/Lesson_13/UefiLessonsPkg/UefiLessonsPkg.dsc
(limited to 'Lessons/Lesson_13')
diff --git a/Lessons/Lesson_13/README.md b/Lessons/Lesson_13/README.md
new file mode 100644
index 0000000..0d42005
--- /dev/null
+++ b/Lessons/Lesson_13/README.md
@@ -0,0 +1,137 @@
+In previous lesson we've used `EFI_SHELL_PARAMETERS_PROTOCOL` to get command line parameters to our app.
+It is a valid method but there is a simpler way to do it for the shell apps.
+
+To ease things we can use the entry point in this format:
+https://github.com/tianocore/edk2/blob/master/ShellPkg/Include/Library/ShellCEntryLib.h
+```
+INTN
+EFIAPI
+ShellAppMain (
+ IN UINTN Argc,
+ IN CHAR16 **Argv
+ );
+```
+This way `Argc`/`Argv` are passed directly to the app entry point like it is usually happening in C programming.
+
+Let's create a `SimpleShellApp` based on our `HelloWorld` app.
+
+With the necessary modifications the INF file would look like this:
+```
+[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
+```
+Main changes:
+- `ENTRY_POINT = ShellCEntryLib` is added to the `[Defines]` section
+- `ShellCEntryLib` is added to the `[LibraryClasses]` section
+
+In the end it works this way. Shell C library is the main UEFI app with the standard entry point:
+```
+EFI_STATUS
+EFIAPI
+UefiMain (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+```
+It parses incoming parameters with the `EFI_SHELL_PARAMETERS_PROTOCOL` like we did it and then calls our app entry point passing all of the parsed parameteres with the call:
+```
+INTN
+EFIAPI
+ShellAppMain (
+ IN UINTN Argc,
+ IN CHAR16 **Argv
+ );
+```
+You can look at the source code of `ShellAppMain` at the https://github.com/tianocore/edk2/blob/master/ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.c
+
+If you look at the source you could see that istead of a `HandleProtocol` API that we've used:
+```
+Status = gBS->HandleProtocol(
+ ImageHandle,
+ &gEfiShellParametersProtocolGuid,
+ (VOID **) &ShellParameters
+);
+```
+it uses `OpenProtocol` API: (I've modified a code a little bit to make it comparable to our version)
+```
+Status = gBS->OpenProtocol(
+ ImageHandle,
+ &gEfiShellParametersProtocolGuid,
+ (VOID **)&ShellParameters,
+ ImageHandle,
+ NULL,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+);
+```
+According to the UEFI spec `HandleProtocol` API is outdated and `OpenProtocol` should be used instead.
+`OpenProtocol` API is a more general call that can cover more cases. It all would matter when you start develop UEFI drivers. You can read UEFI spec for more information. Right now just accept a fact that for the UEFI app these two calls are the same.
+
+Let's go back to our code. To find the necessary `ShellCEntryLib` library class search as usual:
+```
+$ grep ShellCEntryLib -r ./ --include=*.inf | grep LIBRARY_CLASS
+./ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.inf: LIBRARY_CLASS = ShellCEntryLib|UEFI_APPLICATION UEFI_DRIVER
+```
+
+Add this library class to our `UefiLessonsPkg/UefiLessonsPkg.dsc`:
+```
+ShellCEntryLib|ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.inf
+```
+Don't forget also to add our new app under the `[Components]` section:
+```
+UefiLessonsPkg/SimpleShellApp/SimpleShellApp.inf
+```
+
+
+Now let's look at the `*.c` file.
+
+We can't use our first print method as `SystemTable` now is unavailable, but we can simply use `SystemTable` with the help of `gST` pointer:
+```
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+
+INTN EFIAPI ShellAppMain(IN UINTN Argc, IN CHAR16 **Argv)
+{
+ Print(L"Argc=%d\n", Argc);
+// SystemTable->ConOut->OutputString(SystemTable->ConOut, L"Hello World!\n");
+ gST->ConOut->OutputString(gST->ConOut, L"Hello again!\n");
+ Print(L"Bye!\n");
+ return 0;
+}
+```
+
+Let's add some parameters handling code:
+```
+for (UINTN i=Argc; i>0; i--) {
+ Print(L"Arg[%d]=%s\n", Argc-i, Argv[Argc-i]);
+}
+```
+
+If we test our app under OVMF we would get:
+```
+FS0:\> SimpleShellApp.efi kkk ggg
+Hello again!
+Bye!
+Arg[0]=FS0:\SimpleShellApp.efi
+Arg[1]=kkk
+Arg[2]=ggg
+FS0:\> SimpleShellApp.efi
+Hello again!
+Bye!
+Arg[0]=FS0:\SimpleShellApp.efi
+```
diff --git a/Lessons/Lesson_13/UefiLessonsPkg/HelloWorld/HelloWorld.c b/Lessons/Lesson_13/UefiLessonsPkg/HelloWorld/HelloWorld.c
new file mode 100644
index 0000000..1f05899
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/HelloWorld/HelloWorld.c
@@ -0,0 +1,15 @@
+#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/Lessons/Lesson_13/UefiLessonsPkg/HelloWorld/HelloWorld.inf b/Lessons/Lesson_13/UefiLessonsPkg/HelloWorld/HelloWorld.inf
new file mode 100644
index 0000000..d65ca2e
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/HelloWorld/HelloWorld.inf
@@ -0,0 +1,18 @@
+[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/Lessons/Lesson_13/UefiLessonsPkg/ImageHandle/ImageHandle.c b/Lessons/Lesson_13/UefiLessonsPkg/ImageHandle/ImageHandle.c
new file mode 100644
index 0000000..32e9c43
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/ImageHandle/ImageHandle.c
@@ -0,0 +1,105 @@
+#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/Lessons/Lesson_13/UefiLessonsPkg/ImageHandle/ImageHandle.inf b/Lessons/Lesson_13/UefiLessonsPkg/ImageHandle/ImageHandle.inf
new file mode 100644
index 0000000..34256ee
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/ImageHandle/ImageHandle.inf
@@ -0,0 +1,18 @@
+[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/Lessons/Lesson_13/UefiLessonsPkg/ImageInfo/ImageInfo.c b/Lessons/Lesson_13/UefiLessonsPkg/ImageInfo/ImageInfo.c
new file mode 100644
index 0000000..c45570e
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/ImageInfo/ImageInfo.c
@@ -0,0 +1,44 @@
+#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/Lessons/Lesson_13/UefiLessonsPkg/ImageInfo/ImageInfo.inf b/Lessons/Lesson_13/UefiLessonsPkg/ImageInfo/ImageInfo.inf
new file mode 100644
index 0000000..0ce54a6
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/ImageInfo/ImageInfo.inf
@@ -0,0 +1,22 @@
+[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/Lessons/Lesson_13/UefiLessonsPkg/MemoryInfo/MemoryInfo.c b/Lessons/Lesson_13/UefiLessonsPkg/MemoryInfo/MemoryInfo.c
new file mode 100644
index 0000000..8c3bcf2
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/MemoryInfo/MemoryInfo.c
@@ -0,0 +1,215 @@
+#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/Lessons/Lesson_13/UefiLessonsPkg/MemoryInfo/MemoryInfo.inf b/Lessons/Lesson_13/UefiLessonsPkg/MemoryInfo/MemoryInfo.inf
new file mode 100644
index 0000000..777010d
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/MemoryInfo/MemoryInfo.inf
@@ -0,0 +1,21 @@
+[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/Lessons/Lesson_13/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.c b/Lessons/Lesson_13/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.c
new file mode 100644
index 0000000..b13aa6c
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.c
@@ -0,0 +1,14 @@
+#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/Lessons/Lesson_13/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.inf b/Lessons/Lesson_13/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.inf
new file mode 100644
index 0000000..013bf4e
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/SimpleShellApp/SimpleShellApp.inf
@@ -0,0 +1,19 @@
+[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/Lessons/Lesson_13/UefiLessonsPkg/SimplestApp/SimplestApp.c b/Lessons/Lesson_13/UefiLessonsPkg/SimplestApp/SimplestApp.c
new file mode 100644
index 0000000..8bdf500
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/SimplestApp/SimplestApp.c
@@ -0,0 +1,10 @@
+EFI_STATUS
+EFIAPI
+UefiMain (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ return EFI_SUCCESS;
+}
+
diff --git a/Lessons/Lesson_13/UefiLessonsPkg/SimplestApp/SimplestApp.inf b/Lessons/Lesson_13/UefiLessonsPkg/SimplestApp/SimplestApp.inf
new file mode 100644
index 0000000..7d4bae2
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/SimplestApp/SimplestApp.inf
@@ -0,0 +1,16 @@
+[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/Lessons/Lesson_13/UefiLessonsPkg/UefiLessonsPkg.dsc b/Lessons/Lesson_13/UefiLessonsPkg/UefiLessonsPkg.dsc
new file mode 100644
index 0000000..4339a2d
--- /dev/null
+++ b/Lessons/Lesson_13/UefiLessonsPkg/UefiLessonsPkg.dsc
@@ -0,0 +1,35 @@
+[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
+
+
--
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