HCR-18: First commit, bringing HCoreKrnl.exe into memory.

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

2 files changed, 83 insertions, 8 deletions

diff --git a/Private/NewBoot/Source/RuntimeMain.cxx b/Private/NewBoot/Source/RuntimeMain.cxx
index 3c55c06b..cf1051fd 100644
--- a/Private/NewBoot/Source/RuntimeMain.cxx
+++ b/Private/NewBoot/Source/RuntimeMain.cxx
@@ -26,19 +26,17 @@ EFI_EXTERN_C EFI_API Int EfiMain(EfiHandlePtr ImageHandle,
 
 #ifndef __DEBUG__
 
-  writer.WriteString(
-      L"MahroussLogic (R) HCore Version 1.00 (Release Channel)\r\n");
+  writer.WriteString(L"HCoreLdr: Version 1.00 (Release Channel)\r\n");
 
 #else
 
-  writer.WriteString(
-      L"MahroussLogic (R) HCore Version 1.00 (Insiders Channel)\r\n");
+  writer.WriteString(L"HCoreLdr: Version 1.00 (Insiders Channel)\r\n");
 
 #endif
 
   const char strDate[] = __DATE__;
 
-  writer.WriteString(L"Build Date: ");
+  writer.WriteString(L"HCoreLdr: Build-Date");
 
   for (auto& ch : strDate) {
     writer.WriteCharacter(ch);
@@ -66,9 +64,84 @@ EFI_EXTERN_C EFI_API Int EfiMain(EfiHandlePtr ImageHandle,
     if (ptrHdr && ptrHdr->mMachine == EFI::Platform() &&
         ptrHdr->mMagic == kPeMagic) {
       if (ptrHdr->mNumberOfSections > 1) {
+        ExecOptionalHeaderPtr optHdr = reinterpret_cast<ExecOptionalHeaderPtr>(
+            ptrHdr + sizeof(ExecHeader));
+
+        UInt64 baseCode = optHdr->mBaseOfCode;
+        UInt64 codeSz = optHdr->mSizeOfCode;
+        VoidPtr codePtr = nullptr;
+
+        img.File()->SetPosition(img.File(), &baseCode);
+
+        BS->AllocatePool(EfiLoaderCode, codeSz, &codePtr);
+
+        writer.WriteString(L"HCoreLdr: Init [0/2]...\r\n");
+
+        if (!codePtr) {
+          EFI::RaiseHardError(L"HCoreLdr-BadAlloc", L"Bad alloc!");
+        }
+
+        img.File()->Read(img.File(), &codeSz, codePtr);
+
+        /// GET DATA
+
+        UInt64 baseData = optHdr->mBaseOfData;
+        UInt64 sizeofData =
+            optHdr->mSizeOfInitializedData + optHdr->mSizeOfUninitializedData;
+        VoidPtr dataPtr = nullptr;
+
+        BS->AllocatePool(EfiLoaderCode, sizeofData, &dataPtr);
+
+        if (!dataPtr) {
+          EFI::RaiseHardError(L"HCoreLdr-BadAlloc", L"Bad alloc!");
+        }
+
+        writer.WriteString(L"HCoreLdr: Init [1/2]...\r\n");
+
+        img.File()->SetPosition(img.File(), &baseData);
+
+        img.File()->Read(img.File(), &sizeofData, dataPtr);
+
         UInt64 MapKey = 0;
+        UInt64 Size = 0;
+        EfiMemoryDescriptor* Descriptor = nullptr;
+        UInt64 SzDesc = 0;
+        UInt64 RevDesc = 0;
+
+        BS->AllocatePool(EfiLoaderData, sizeof(EfiMemoryDescriptor),
+                         (VoidPtr*)&Descriptor);
+
+        if (BS->GetMemoryMap(&Size, Descriptor, &MapKey, &SzDesc, &RevDesc) !=
+            kEfiOk) {
+          EFI::RaiseHardError(L"HCoreLdr: Bad-Call",
+                              L"Bad call! (GetMemoryMap)");
+        }
+
+        writer.WriteString(L"HCoreLdr: Init [2/2]...\r\n");
+
+        HEL::HandoverInformationHeader* handoverHdrPtr = nullptr;
+
+        BS->AllocatePool(EfiLoaderData, sizeof(HEL::HandoverInformationHeader),
+                         (VoidPtr*)&handoverHdrPtr);
+
+        HEL::HandoverProc fn = reinterpret_cast<HEL::HandoverProc>(
+            (UIntPtr)optHdr->mAddressOfEntryPoint);
+
+        handoverHdrPtr->f_GOP = (voidPtr)kGop->Mode->FrameBufferBase;
+        handoverHdrPtr->f_GOPSize = kGop->Mode->FrameBufferSize;
+
+        handoverHdrPtr->f_PhysicalStart = (voidPtr)Descriptor->PhysicalStart;
+        handoverHdrPtr->f_PhysicalSize = Descriptor->NumberOfPages;
+        handoverHdrPtr->f_VirtualStart = (voidPtr)Descriptor->VirtualStart;
+        handoverHdrPtr->f_VirtualSize = 0; /* not known */
+        handoverHdrPtr->f_FirmwareVendorLen =
+            BStrLen(SystemTable->FirmwareVendor);
+
+        BCopyMem(handoverHdrPtr->f_FirmwareVendorName,
+                 SystemTable->FirmwareVendor,
+                 handoverHdrPtr->f_FirmwareVendorLen);
 
-        EFI::ExitBootServices(MapKey, ImageHandle);
+        EFI::ExitBootServices(MapKey, ImageHandle, fn, handoverHdrPtr);
 
         // Launch PE app.
 
@@ -78,9 +151,11 @@ EFI_EXTERN_C EFI_API Int EfiMain(EfiHandlePtr ImageHandle,
       } else {
         writer.WriteString(L"HCoreLdr: Error-Code: HLDR-0001\r\n");
       }
+    } else {
+      writer.WriteString(L"HCoreLdr: Error-Code: HLDR-0002\r\n");
     }
   } else {
-    writer.WriteString(L"HCoreLdr: Error-Code: HLDR-0002\r\n");
+    writer.WriteString(L"HCoreLdr: Error-Code: HLDR-0003\r\n");
   }
 
   EFI::Stop();
diff --git a/Private/NewBoot/Source/makefile b/Private/NewBoot/Source/makefile
index fab7453d..d17f9671 100644
--- a/Private/NewBoot/Source/makefile
+++ b/Private/NewBoot/Source/makefile
@@ -27,7 +27,7 @@ bootloader-amd64:
 .PHONY: run-efi-amd64
 run-efi-amd64:
 	wget https://retrage.github.io/edk2-nightly/bin/DEBUGX64_OVMF.fd -O OVMF.fd
-	qemu-system-x86_64 -net none -smp 2 -m 4G -M q35 -bios OVMF.fd -drive file=fat:rw:CDROM,index=1,format=raw -serial stdio
+	qemu-system-x86_64 -net none -smp 2 -m 4G -M q35 -bios OVMF.fd -drive file=fat:rw:CDROM,index=1,format=raw -d int
 
 .PHONY: clean
 clean: