kernel: add GKit, improve AMD64 HAL.

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

1 files changed, 42 insertions, 0 deletions

diff --git a/Private/HALKit/AMD64/HalHardwareAPIC.cpp b/Private/HALKit/AMD64/HalHardwareAPIC.cpp
new file mode 100644
index 00000000..6d77a8b5
--- /dev/null
+++ b/Private/HALKit/AMD64/HalHardwareAPIC.cpp
@@ -0,0 +1,42 @@
+/*
+ *	========================================================
+ *
+ *	HCore
+ * 	Copyright 2024 Mahrouss Logic, all rights reserved.
+ *
+ * 	========================================================
+ */
+
+#include <ArchKit/Arch.hpp>
+
+// bugs = 0
+
+namespace HCore {
+// @brief wakes up thread.
+// wakes up thread from hang.
+void rt_wakeup_thread(HAL::StackFrame* stack) {
+  __asm__ volatile("cli");
+
+  stack->Rbp = stack->R15;
+  stack->Rsi = stack->Rbp;
+
+  __asm__ volatile("sti");
+}
+
+static void __rt_hang_proc(void) {
+  while (1)
+    ;
+}
+
+// @brief makes thread sleep.
+// hooks and hangs thread to prevent code from executing.
+void rt_hang_thread(HAL::StackFrame* stack) {
+  __asm__ volatile("cli");
+
+  stack->R15 = stack->Rbp;
+  stack->Rbp = (HAL::Reg)&__rt_hang_proc;
+  stack->Rsp = stack->Rbp;
+
+  __asm__ volatile("sti");
+}
+}  // namespace HCore