Karina
117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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// Copyright (c) 2026 0xKarinyash
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#include "bootinfo.h"
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#include <KSH/KSHEntry.h>
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#include <types.h>
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#include <IO/IOGraphics.h>
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#include <IO/IOSerial.h>
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#include <IO/IOConsole.h>
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#include <IO/IOTimer.h>
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#include <IO/IOKeyboard.h>
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#include <OS/OSPanic.h>
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#include <OS/OSScheduler.h>
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#include <OS/Exec/OSLoader.h>
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#include <lib/Splash.h>
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#include <lib/Rand.h>
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#include <GDT.h>
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#include <IDT.h>
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#include <PIC.h>
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#include <OSCPU.h>
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#include <syscall.h>
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#include <VM/PMM.h>
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#include <VM/VMM.h>
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#include <VM/Heap.h>
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#include <FS/CPIO.h>
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#include <FS/VFS.h>
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enum {
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kDefaultConsoleForegroundColor = 0xffffff,
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kDefaultConsoleBackgroundColor = 0x111111,
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};
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extern UInt64 _kernel_end;
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extern void* stack_top;
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static IOGraphicsContext sIOGraphicsContext;
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void kmain(Bootinfo* info) {
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IOSerialInit();
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IOSerialWrite("Kernel started\n");
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IOConsoleInit(&sIOGraphicsContext);
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if (info->magic != BOOTINFO_MAGIC) OSPanic("Corrupt bootinfo!");
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OSCPUInitialize((UInt64)&stack_top);
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IOConsoleLog("Got CPUINFO\n");
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RandInitialize();
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IOConsoleLog("Random initialized\n");
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HALGlobalDescriptorTableInitialize();
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IOConsoleLog("GDT initialized\n");
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HALInterruptsDescriptorTableInitialize();
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IOConsoleLog("IDT initialized\n");
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HALLegacyInterruptControllerRemap();
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IOConsoleLog("PIC remapped\n");
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VMPhysicalMemoryInitialize(&info->memoryMap);
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IOConsoleLog("PMM initialized\n");
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VMVirtualMemoryInitialize(info);
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IOConsoleLog("VMM initialized\n");
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IOTimerInitialize(1000);
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IOConsoleLog("Timer initialized\n");
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VMHeapInitialize();
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IOConsoleLog("Heap initialized\n");
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OSSchedulerInitialize();
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IOConsoleLog("Scheduler initialized\n");
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OSServicesInitialize();
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IOConsoleLog("Syscalls initialized");
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info = (Bootinfo*)PHYS_TO_HHDM((UInt64)info);
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FSVNode* root = FSCPIOMount(PHYS_TO_HHDM(info->initramfs.address), info->initramfs.size);
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FSVirtualFileSystemInitialize(root);
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IOConsoleLog("VFS initialized\n");
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UInt32 *framebuffer = (UInt32*)info->framebuffer.base;
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if (!framebuffer) return OSPanic("No framebuffer found!!");
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sIOGraphicsContext.framebuffer = framebuffer;
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sIOGraphicsContext.dimensions.height = info->framebuffer.height;
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sIOGraphicsContext.dimensions.width = info->framebuffer.width;
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sIOGraphicsContext.pixelsPerScanLine = info->framebuffer.pitch;
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IOConsoleClear(kDefaultConsoleBackgroundColor);
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IOConsoleSetForegroundColor(kDefaultConsoleForegroundColor);
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IOConsoleSetDefaultForegroundColor(kDefaultConsoleForegroundColor);
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SplashShow(&sIOGraphicsContext);
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bool rescueMode = false;
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if (!info->initramfs.address) {
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IOConsoleLog("^rWARNING^!: Failed to load ^yStartupVolume^!! Staying in kernel rescue shell!\n\n");
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rescueMode = true;
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}
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if (!rescueMode) {
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IOConsoleLog("Press any key to continue booting. \nPress ^yq^! to stay in ^gksh^!\n");
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char c = '\n';
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c = IOKeyboardGetCharacter();
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if (c == 'q') rescueMode = true;
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}
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if (rescueMode) OSSchedulerSpawn(KSHEntry, nullptr, false, 0);
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else OSSchedulerSpawn(init_task_entry, nullptr, false, 0);
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__asm__ volatile("sti");
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while (true) __asm__ volatile("hlt");
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OSPanic("How in the name of God you got here?");
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} |