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/* -------------------------------------------
Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
------------------------------------------- */
#include <ArchKit/ArchKit.h>
#include <KernelKit/UserProcessScheduler.h>
#include <KernelKit/HardwareThreadScheduler.h>
#include <KernelKit/CodeMgr.h>
#include <Mod/ACPI/ACPIFactoryInterface.h>
#include <NetworkKit/IPC.h>
#include <CFKit/Property.h>
#include <Mod/CoreGfx/TextMgr.h>
EXTERN_C Kernel::VoidPtr kInterruptVectorTable[];
EXTERN_C Kernel::VoidPtr mp_user_switch_proc;
EXTERN_C Kernel::Char mp_user_switch_proc_stack_begin[];
EXTERN_C Kernel::rtl_ctor_kind __CTOR_LIST__[];
EXTERN_C Kernel::VoidPtr __DTOR_LIST__;
EXTERN_C Kernel::Void rtl_kernel_main(Kernel::SizeT argc, char** argv, char** envp, Kernel::SizeT envp_len);
STATIC Kernel::Void hal_init_cxx_ctors()
{
for (Kernel::SizeT i = 0U; i < Kernel::UserProcessScheduler::The().CurrentTeam().AsArray().Count(); ++i)
{
Kernel::UserProcessScheduler::The().CurrentTeam().AsArray()[i] = Kernel::UserProcess();
Kernel::UserProcessScheduler::The().CurrentTeam().AsArray()[i].Status = Kernel::ProcessStatusKind::kKilled;
}
Kernel::UserProcessScheduler::The().CurrentTeam().mProcessCount = 0UL;
for (Kernel::SizeT index = 0UL; __CTOR_LIST__[index] != __DTOR_LIST__; ++index)
{
Kernel::rtl_ctor_kind constructor_cxx = (Kernel::rtl_ctor_kind)__CTOR_LIST__[index];
constructor_cxx();
}
}
/// @brief Kernel init procedure.
EXTERN_C void hal_init_platform(
Kernel::HEL::BootInfoHeader* handover_hdr)
{
kHandoverHeader = handover_hdr;
if (kHandoverHeader->f_Magic != kHandoverMagic &&
kHandoverHeader->f_Version != kHandoverVersion)
{
return;
}
hal_init_cxx_ctors();
/************************************** */
/* INITIALIZE BIT MAP. */
/************************************** */
kKernelBitMpSize = kHandoverHeader->f_BitMapSize;
kKernelBitMpStart = reinterpret_cast<Kernel::VoidPtr>(
reinterpret_cast<Kernel::UIntPtr>(kHandoverHeader->f_BitMapStart));
/************************************** */
/* INITIALIZE GDT AND SEGMENTS. */
/************************************** */
STATIC CONST auto kGDTEntriesCount = 6;
/* GDT, mostly descriptors for user and kernel segments. */
STATIC Kernel::HAL::Detail::NE_GDT_ENTRY ALIGN(0x08) kGDTArray[kGDTEntriesCount] = {
{.fLimitLow = 0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0x00, .fFlags = 0x00, .fBaseHigh = 0}, // Null entry
{.fLimitLow = 0x0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0x9A, .fFlags = 0xAF, .fBaseHigh = 0}, // Kernel code
{.fLimitLow = 0x0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0x92, .fFlags = 0xCF, .fBaseHigh = 0}, // Kernel data
{.fLimitLow = 0x0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0xFA, .fFlags = 0xAF, .fBaseHigh = 0}, // User code
{.fLimitLow = 0x0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0xF2, .fFlags = 0xCF, .fBaseHigh = 0}, // User data
};
// Load memory descriptors.
Kernel::HAL::RegisterGDT gdt_reg;
gdt_reg.Base = reinterpret_cast<Kernel::UIntPtr>(kGDTArray);
gdt_reg.Limit = (sizeof(Kernel::HAL::Detail::NE_GDT_ENTRY) * kGDTEntriesCount) - 1;
//! GDT will load hal_read_init after it successfully loads the segments.
Kernel::HAL::GDTLoader gdt_loader;
gdt_loader.Load(gdt_reg);
Kernel::ke_panic(RUNTIME_CHECK_BOOTSTRAP);
}
EXTERN_C Kernel::Void hal_real_init(Kernel::Void) noexcept
{
rtl_kernel_main(0, nullptr, nullptr, 0);
Kernel::HAL::mp_get_cores(kHandoverHeader->f_HardwareTables.f_VendorPtr);
Kernel::HAL::Register64 idt_reg;
idt_reg.Base = (Kernel::UIntPtr)kInterruptVectorTable;
Kernel::HAL::IDTLoader idt_loader;
idt_loader.Load(idt_reg);
while (YES)
{
continue;
}
}
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