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feat: scheduling, usermode, shell

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This commit is contained in:
Daniel Hammer
2026-02-17 19:17:01 +01:00
parent 20fa8a9be2
commit 605fbcbe42
46 changed files with 2622 additions and 98 deletions
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kernel/src/Main.cpp
+56 -14
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@@ -37,7 +37,10 @@
#include <Net/Net.hpp>
#include <CppLib/BoxUI.hpp>
#include <Graphics/Cursor.hpp>
#include <Fs/Ramdisk.hpp>
#include <Fs/Vfs.hpp>
#include <Sched/Scheduler.hpp>
#include <Api/Syscall.hpp>
using namespace Kt;
namespace Memory {
@@ -95,22 +98,20 @@ extern "C" void kmain() {
uint64_t hhdm_offset = hhdm_request.response->offset;
Memory::HHDMBase = hhdm_offset;
if (memmap_request.response != nullptr) {
Kt::KernelLogStream(OK, "Mem") << "Creating PageFrameAllocator";
Memory::PageFrameAllocator pmm(Memory::Scan(memmap_request.response));
Memory::g_pfa = &pmm;
Kt::KernelLogStream(OK, "Mem") << "Creating HeapAllocator";
Memory::HeapAllocator heap{};
Memory::g_heap = &heap;
heap.Walk();
} else {
if (memmap_request.response == nullptr) {
Panic("System memory map missing!", nullptr);
}
Kt::KernelLogStream(OK, "Mem") << "Creating PageFrameAllocator";
Memory::PageFrameAllocator pmm(Memory::Scan(memmap_request.response));
Memory::g_pfa = &pmm;
Kt::KernelLogStream(OK, "Mem") << "Creating HeapAllocator";
Memory::HeapAllocator heap{};
Memory::g_heap = &heap;
heap.Walk();
#if defined (__x86_64__)
Hal::IDTInitialize();
@@ -142,8 +143,49 @@ extern "C" void kmain() {
Efi::SystemTable* ST = (Efi::SystemTable*)Memory::HHDM(system_table_request.response->address);
Efi::Init(ST);
// Initialize ramdisk from Limine modules
if (module_request.response != nullptr && module_request.response->module_count > 0) {
Kt::KernelLogStream(OK, "Modules") << "Found " << (uint64_t)module_request.response->module_count << " module(s)";
for (uint64_t i = 0; i < module_request.response->module_count; i++) {
limine_file* mod = module_request.response->modules[i];
const char* modString = mod->string;
// Find "ramdisk" module by its string
if (modString != nullptr &&
modString[0] == 'r' && modString[1] == 'a' && modString[2] == 'm' &&
modString[3] == 'd' && modString[4] == 'i' && modString[5] == 's' &&
modString[6] == 'k' && modString[7] == '\0') {
Kt::KernelLogStream(OK, "Modules") << "Ramdisk module at " << kcp::hex << (uint64_t)mod->address << kcp::dec << ", size=" << mod->size;
Fs::Ramdisk::Initialize(mod->address, mod->size);
}
}
} else {
Kt::KernelLogStream(WARNING, "Modules") << "No modules loaded (ramdisk unavailable)";
}
// Initialize VFS and register ramdisk as drive 0
Fs::Vfs::Initialize();
static Fs::Vfs::FsDriver ramdiskDriver = {
Fs::Ramdisk::Open,
Fs::Ramdisk::Read,
Fs::Ramdisk::GetSize,
Fs::Ramdisk::Close,
Fs::Ramdisk::ReadDir
};
Fs::Vfs::RegisterDrive(0, &ramdiskDriver);
Graphics::Cursor::Initialize(framebuffer);
Hal::LoadTSS();
Zenith::InitializeSyscalls();
Sched::Initialize();
Sched::Spawn("0:/shell.elf");
// Enable preemptive scheduling via the APIC timer
Timekeeping::EnableSchedulerTick();
// Main loop: update cursor position and halt until next interrupt
for (;;) {
Graphics::Cursor::Update();