bastion: add Kernel, Processor, AcpiTables, DeviceTree classesHEADmaster

Kernel: main singleton object, that provide access to core kernel
entities
Processor: empty class, that will be used later for per-CPU entities
AcpiTables: class for acpi access (can be obtained through the kernel
object)
DeviceTree: class for dt access (can be obtained through the kernel
object)

1 files changed, 31 insertions, 0 deletions

diff --git a/kernel/arch/x86_64/Processor.h b/kernel/arch/x86_64/Processor.h
new file mode 100644
index 0000000..bc5a61a
--- /dev/null
+++ b/kernel/arch/x86_64/Processor.h
@@ -0,0 +1,31 @@
+#pragma once
+// ============================================================================
+// arch/x86_64/Processor.h - x86_64 per-CPU state
+//
+// ============================================================================
+
+#include <stdint.h>
+#include <kernel/types.h>
+
+struct BootInfo;
+
+class Processor {
+public:
+    void InitEarly(const BootInfo& boot_info);
+
+    // Phase 2 will add:
+    //   void*    GetGdtPointer() const;
+    //   void*    GetIdtPointer() const;
+    //   PhysAddr GetLapicBase() const;
+    //   PhysAddr GetIoapicBase() const;
+    //   PhysAddr GetCr3() const;
+
+    Processor() = default;
+    Processor(const Processor&) = delete;
+    Processor& operator=(const Processor&) = delete;
+
+private:
+    // Phase 2: gdt, idt, lapic_base, ioapic_base, cr3...
+};
+
+Processor& processor();