Kernel: Update SPECS and TODO list.

Cleaned up the SPECS to get into the point.

Current Task: Load kernel into memory.

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

6 files changed, 76 insertions, 45 deletions

diff --git a/Private/NewBoot/BootKit/Boot.hxx b/Private/NewBoot/BootKit/Boot.hxx
index 07148702..4bdc9c84 100644
--- a/Private/NewBoot/BootKit/Boot.hxx
+++ b/Private/NewBoot/BootKit/Boot.hxx
@@ -7,6 +7,11 @@
  * 	========================================================
  */
 
+/***********************************************************************************/
+/// @file Boot.hxx
+/// @brief Bootloader API.
+/***********************************************************************************/
+
 #pragma once
 
 #include <NewKit/Defines.hpp>
@@ -15,55 +20,62 @@ using namespace hCore;
 
 typedef void *PEFImage;
 
-enum
-{
-    kSegmentCode = 2,
-    kSegmentData = 4,
-    kSegmentBss = 6,
+enum {
+  kSegmentCode = 2,
+  kSegmentData = 4,
+  kSegmentBss = 6,
 };
 
 /**
  * @brief BootKit Text Writer class
  * Writes to VGA.
  */
-class BKTextWriter final
-{
-    volatile UInt16 *fWhere{nullptr};
+class BKTextWriter final {
+  volatile UInt16 *fWhere{nullptr};
 
-  public:
-    void WriteString(const char *c, unsigned char forecolour, unsigned char backcolour, int x, int y);
+ public:
+  void WriteString(const char *c, unsigned char forecolour,
+                   unsigned char backcolour, int x, int y);
 
-    void WriteCharacter(char c, unsigned char forecolour, unsigned char backcolour, int x, int y);
+  void WriteCharacter(char c, unsigned char forecolour,
+                      unsigned char backcolour, int x, int y);
 
-  public:
-    BKTextWriter() = default;
-    ~BKTextWriter() = default;
+ public:
+  BKTextWriter() = default;
+  ~BKTextWriter() = default;
 
-  public:
-    BKTextWriter &operator=(const BKTextWriter &) = default;
-    BKTextWriter(const BKTextWriter &) = default;
+ public:
+  BKTextWriter &operator=(const BKTextWriter &) = default;
+  BKTextWriter(const BKTextWriter &) = default;
 };
 
-enum
-{
-    kBlack,
-    kBlue,
-    kGreen,
-    kCyan,
-    kRed,
-    kMagenta,
-    kBrown,
-    kLightGray,
-    kDarkGray,
-    kLightBlue,
-    kLightGreen,
-    kLightCyan,
-    kLightRed,
-    kLightMagenta,
-    kYellow,
-    kWhite,
+enum {
+  kBlack,
+  kBlue,
+  kGreen,
+  kCyan,
+  kRed,
+  kMagenta,
+  kBrown,
+  kLightGray,
+  kDarkGray,
+  kLightBlue,
+  kLightGreen,
+  kLightCyan,
+  kLightRed,
+  kLightMagenta,
+  kYellow,
+  kWhite,
 };
 
-#define BK_START_KERNEL (0x10000000)
+#define BK_START_KERNEL (0x80000000)
 
 hCore::SizeT BStrLen(const char *ptr);
+hCore::SizeT BSetMem(char *src, const char byte, const hCore::SizeT len);
+
+/***********************************************************************************/
+/// Include other APIs.
+/***********************************************************************************/
+
+#include <BootKit/Processor.hxx>
+#include <BootKit/Protocol.hxx>
diff --git a/Private/NewBoot/BootKit/Protocol.hxx b/Private/NewBoot/BootKit/Protocol.hxx
index bcbb43a3..26eef7e7 100644
--- a/Private/NewBoot/BootKit/Protocol.hxx
+++ b/Private/NewBoot/BootKit/Protocol.hxx
@@ -55,8 +55,11 @@ struct HandoverInformationHeader {
   SizeT f_VirtualSize;
   voidPtr f_PhysicalStart;
   SizeT f_PhysicalSize;
-  voidPtr f_FirmwareVendorName;
+  Char f_FirmwareVendorName[32];
   SizeT f_FirmwareVendorLen;
+  voidPtr f_RsdPtr;
+  voidPtr f_SmBIOS;
+  voidPtr f_RTC;
 };
 
 /**
diff --git a/Private/NewBoot/Source/HEL/AMD64/Boot.cxx b/Private/NewBoot/Source/HEL/AMD64/Boot.cxx
index 70f280e6..6bf63ffe 100644
--- a/Private/NewBoot/Source/HEL/AMD64/Boot.cxx
+++ b/Private/NewBoot/Source/HEL/AMD64/Boot.cxx
@@ -22,6 +22,21 @@ hCore::SizeT BStrLen(const char *ptr) {
   return cnt;
 }
 
+hCore::SizeT BSetMem(char *src, const char byte, const hCore::SizeT len) {
+  hCore::SizeT cnt = 0UL;
+
+  while (*src != 0) {
+    if (cnt > len) break;
+
+    *src = byte;
+    ++src;
+
+    ++cnt;
+  }
+
+  return cnt;
+}
+
 /**
 @brief puts wrapper over VGA.
 */
diff --git a/Private/NewBoot/Source/HEL/AMD64/Entrypoint.cxx b/Private/NewBoot/Source/HEL/AMD64/Entrypoint.cxx
index 5422d368..a1868144 100644
--- a/Private/NewBoot/Source/HEL/AMD64/Entrypoint.cxx
+++ b/Private/NewBoot/Source/HEL/AMD64/Entrypoint.cxx
@@ -8,16 +8,13 @@
  */
 
 #include <BootKit/Boot.hxx>
-#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) {
-  EfiCharType* string = L"HCoreLdr: Initializing...\r\n";
-
-  SystemTable->ConOut->OutputString(SystemTable->ConOut, string);
+  SystemTable->ConOut->OutputString(SystemTable->ConOut,
+                                    L"HCoreLdr: Initializing Kernel...\r\n");
 
   EfiLoadImageProtocol* protocol;
   EfiGUID guid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
@@ -42,7 +39,7 @@ EFI_EXTERN_C int EfiMain(EfiHandlePtr ImageHandle,
         SystemTable->ConOut, L"HCoreLdr: Could not exit Boot Services!\r\n");
 
     SystemTable->ConOut->OutputString(SystemTable->ConOut,
-                                      L"HCoreLdr: Hanging...\r\n");
+                                      L"HCoreLdr: Entering limbo state...\r\n");
 
     while (true) {
       rt_cli();
diff --git a/Private/NewBoot/Source/HEL/AMD64/Processor.cxx b/Private/NewBoot/Source/HEL/AMD64/Platform.cxx
index a0c93ab5..a0c93ab5 100644
--- a/Private/NewBoot/Source/HEL/AMD64/Processor.cxx
+++ b/Private/NewBoot/Source/HEL/AMD64/Platform.cxx
diff --git a/Private/NewBoot/Source/makefile b/Private/NewBoot/Source/makefile
index 1fa6cc46..9ae30d13 100644
--- a/Private/NewBoot/Source/makefile
+++ b/Private/NewBoot/Source/makefile
@@ -8,6 +8,10 @@ LD_GNU=x86_64-w64-mingw32-ld
 
 FLAG_GNU=-fshort-wchar -fPIC -D__DBG__ -DEFI_FUNCTION_WRAPPER -I../ -I../../ -I../../efiSDK/inc -I./ -c  -ffreestanding -fno-rtti -fno-exceptions -std=c++20 -D__HAVE_HCORE_APIS__ -D__HCORE__ -I./ -I$(HOME)/
 
+.PHONY: invalid-recipe
+invalid-recipe:
+	@echo "invalid-recipe: Use make arch-<arch> all instead."
+
 .PHONY: arch-amd64
 arch-amd64:
 	$(CC_GNU) $(FLAG_GNU) HEL/AMD64/*.cxx
@@ -15,8 +19,8 @@ arch-amd64:
 	cp HCORELDR.EXE CDROM/EFI/BOOT/BOOTX64.EFI
 	cp -r ../../Root ./CDROM/MAHROUSS
 
-.PHONY: efi-debug
-efi-debug:
+.PHONY: run-efi-debug
+run-efi-debug:
 	wget https://retrage.github.io/edk2-nightly/bin/DEBUGX64_OVMF.fd -O OVMF.fd
 	qemu-system-x86_64 -bios OVMF.fd -net none -drive file=fat:rw:CDROM,format=raw -d int