NewBoot: Working on EFI implementation to load kernel into memory...

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>

1 files changed, 23 insertions, 3 deletions

diff --git a/Private/NewBoot/Source/HEL/AMD64/EfiMain.cxx b/Private/NewBoot/Source/HEL/AMD64/EfiMain.cxx
index 0d44086b..9174293e 100644
--- a/Private/NewBoot/Source/HEL/AMD64/EfiMain.cxx
+++ b/Private/NewBoot/Source/HEL/AMD64/EfiMain.cxx
@@ -11,13 +11,33 @@
 #include <BootKit/Processor.hxx>
 #include <BootKit/Protocol.hxx>
 
+// don't remove EfiGUID, it will call initializer_list!
+
 EFI_EXTERN_C int EfiMain(EfiHandlePtr ImageHandle,
-                         EfiSystemTable *SystemTable) {
+                         EfiSystemTable* SystemTable) {
   SystemTable->ConOut->OutputString(SystemTable->ConOut,
                                     L"HCoreLdr: Starting \\EPM\\HCore...\r\n");
 
-  if (SystemTable->BootServices->ExitBootServices(
-          ImageHandle, kBaseHandoverStruct) != kEfiOk) {
+  EfiLoadImageProtocol* protocol{};
+
+  EfiGUID guid = EfiGUID EFI_LOADED_IMAGE_PROTOCOL_GUID;
+
+  SystemTable->BootServices->LocateProtocol(&guid, nullptr,
+                                            (VoidPtr*)&protocol);
+
+  if (!protocol) {
+    SystemTable->ConOut->OutputString(
+        SystemTable->ConOut,
+        L"HCoreLdr: Could not locate EfiLoadImageProtocol! Aborting...\r\n");
+
+    return kEfiFail;
+  }
+
+  SystemTable->BootServices->OpenProtocol(
+      ImageHandle, &guid, (VoidPtr*)&protocol, ImageHandle, ImageHandle,
+      EFI_OPEN_PROTOCOL_GET_PROTOCOL);
+
+  if (SystemTable->BootServices->ExitBootServices(ImageHandle, 0) != kEfiOk) {
     SystemTable->ConOut->OutputString(
         SystemTable->ConOut,
         L"HCoreLdr: Could not Exit UEFI!\r\nHanging...\r\n");