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, 30 insertions, 20 deletions

diff --git a/kernel/core/kernel_main.cpp b/kernel/core/kernel_main.cpp
index 9c744c7..cf95b59 100644
--- a/kernel/core/kernel_main.cpp
+++ b/kernel/core/kernel_main.cpp
@@ -8,7 +8,10 @@
 #include <boot/boot_info.h>
 #include <kernel/kprint.h>
 #include <kernel/arch.h>
+#include <kernel/kernel.h>
+#include "Processor.h"
 
+using namespace kernel;
 // ── Memory region type names ───────────────────────────────────────────────
 
 namespace {
@@ -36,39 +39,41 @@ extern "C" void kernel_main(BootInfo* boot_info) {
     if (boot_info->magic != BOOT_INFO_MAGIC)
         arch::halt();
 
-    // Initialize framebuffer console.
+    // Initialize framebuffer console (needed before Kernel::init for logging).
     // TODO: Add driver skeleton and move framebuffer to early drivers.
     kcon::init(boot_info->framebuffer);
 
+    // Initialize the kernel object — copies boot data, safe to use after this.
+    GetKernel().init(*boot_info);
+
+    // Store arch-specific per-CPU state (Phase 2: GDT/IDT, VBAR/GIC, etc.).
+    processor().InitEarly(*boot_info);
+
     // ── Banner ─────────────────────────────────────────────────────────
 
     kcon::println("========================================");
-    kcon::println("  Bastion Kernel " CONFIG_KERNEL_VERSION);
-    kcon::kprintf("  Architecture: %s\n", arch::name());
+    kcon::kprintf("  Bastion Kernel %s\n", GetKernel().GetVersion().string);
+    kcon::kprintf("  Architecture: %s\n", GetKernel().GetArchName());
     kcon::println("========================================");
     kcon::putchar('\n');
 
     // ── Framebuffer info ───────────────────────────────────────────────
 
     kcon::kprintf("Framebuffer: %ux%u, pitch=%u, base=%x\n",
-        boot_info->framebuffer.width,
-        boot_info->framebuffer.height,
-        boot_info->framebuffer.pitch,
-        boot_info->framebuffer.base);
+        GetKernel().GetFramebuffer().width,
+        GetKernel().GetFramebuffer().height,
+        GetKernel().GetFramebuffer().pitch,
+        GetKernel().GetFramebuffer().base);
     kcon::putchar('\n');
 
     // ── Firmware tables ────────────────────────────────────────────────
-
-#ifdef CONFIG_X86
-    if (boot_info->rsdp_address)
-        kcon::kprintf("ACPI RSDP at: %x\n", boot_info->rsdp_address);
-#elif CONFIG_AARCH64
-    if (boot_info->fdt_address)
-        kcon::kprintf("Device Tree at: %x\n", boot_info->fdt_address);
-#endif
+    if (GetKernel().GetAcpiTables() && GetKernel().GetAcpiTables()->GetRsdpAddress())
+        kcon::kprintf("ACPI RSDP at: %x\n", GetKernel().GetAcpiTables()->GetRsdpAddress());
+    if (GetKernel().GetDeviceTree() && GetKernel().GetDeviceTree()->GetFdtAddress())
+        kcon::kprintf("Device Tree at: %x\n", GetKernel().GetDeviceTree()->GetFdtAddress());
     kcon::putchar('\n');
 
-    // ── Memory map ─────────────────────────────────────────────────────
+    // ── Memory map (read directly from boot_info, consumed by PMM later) ──
 
     kcon::kprintf("Memory map (%u entries):\n", boot_info->memory_map_count);
 
@@ -96,12 +101,14 @@ extern "C" void kernel_main(BootInfo* boot_info) {
 
     kcon::putchar('\n');
     kcon::kprintf("Kernel loaded at phys %x, virt %x, size %u KiB\n",
-        boot_info->kernel_phys_base,
-        boot_info->kernel_virt_base,
-        boot_info->kernel_size / 1024u);
+        GetKernel().GetKernelPhysBase(),
+        GetKernel().GetKernelPhysBase(),
+        GetKernel().GetKernelSize() / 1024u);
 
     // ── Done (for now) ─────────────────────────────────────────────────
 
+    GetKernel().SetRunning();
+
     kcon::putchar('\n');
     kcon::println("Hello, World from BastionOS!");
     kcon::putchar('\n');
@@ -109,5 +116,8 @@ extern "C" void kernel_main(BootInfo* boot_info) {
     kcon::println("Next: GDT, IDT, paging, memory allocator...");
     kcon::println("Halting.");
 
-    arch::halt(); // [[noreturn]] — never comes back
+    //KERNEL_PANIC("panic test");
+
+    GetKernel().SetHalt();
+    arch::halt();
 }